sdl-ios-xcode: src/loadso/macosx/SDL

annotate src/loadso/macosx/SDL_loadso.c @ 1228:f4a3a4129d04

From Mike Frysinger and/or Gentoo: - libsdl-SDL_stretch-PIC.patch ignoring the general fact of how SDL_stretch relies on executing dynamic code, the inline asm should let gcc handle the a details for getting the actual address for _copy_row as it will do the right thing test case: http://dev.gentoo.org/~vapier/libsdl/sdl-stretch.tar.bz2

author	Ryan C. Gordon <icculus@icculus.org>
date	Thu, 05 Jan 2006 07:20:12 +0000
parents	173c063d4f55
children	c9b51268668f

rev	line source
1173 e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1 /*
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	2 SDL - Simple DirectMedia Layer
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	3 Copyright (C) 1997-2004 Sam Lantinga
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	4
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	5 This library is free software; you can redistribute it and/or
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	6 modify it under the terms of the GNU Library General Public
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	7 License as published by the Free Software Foundation; either
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	8 version 2 of the License, or (at your option) any later version.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	9
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	13 Library General Public License for more details.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	14
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	15 You should have received a copy of the GNU Library General Public
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	16 License along with this library; if not, write to the Free
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	18
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	19 Sam Lantinga
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	20 slouken@libsdl.org
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	21 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	22
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	23 #ifdef SAVE_RCSID
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	24 static char rcsid =
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	25 "@(#) $Id$";
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	26 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	27
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	28 /* Please note that dlcompat apparently ships in current Mac OS X versions
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	29 * as a system library that provides compatibility with the Unix "dlopen"
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	30 * interface. In order to allow SDL to work on older OS X releases and also
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	31 * not conflict with the system lib on newer versions, we include dlcompat
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	32 * in SDL and change the symbols to prevent symbol clash with any existing
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	33 * system libraries. --ryan.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	34 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	35
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	36 /* here is the dlcompat license: */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	37
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	38 /*
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	39 Copyright (c) 2002 Jorge Acereda <jacereda@users.sourceforge.net> &
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	40 Peter O'Gorman <ogorman@users.sourceforge.net>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	41
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	42 Portions may be copyright others, see the AUTHORS file included with this
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	43 distribution.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	44
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	45 Maintained by Peter O'Gorman <ogorman@users.sourceforge.net>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	46
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	47 Bug Reports and other queries should go to <ogorman@users.sourceforge.net>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	48
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	49 Permission is hereby granted, free of charge, to any person obtaining
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	50 a copy of this software and associated documentation files (the
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	51 "Software"), to deal in the Software without restriction, including
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	52 without limitation the rights to use, copy, modify, merge, publish,
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	53 distribute, sublicense, and/or sell copies of the Software, and to
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	54 permit persons to whom the Software is furnished to do so, subject to
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	55 the following conditions:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	56
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	57 The above copyright notice and this permission notice shall be
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	58 included in all copies or substantial portions of the Software.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	59
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	60 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	61 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	62 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	63 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	64 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	65 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	66 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	67 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	68
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	69 #include <pthread.h>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	70 #include <stdio.h>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	71 #include <stdlib.h>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	72 #include <string.h>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	73 #include <sys/types.h>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	74 #include <sys/stat.h>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	75 #include <stdarg.h>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	76 #include <limits.h>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	77 #include <mach-o/dyld.h>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	78 #include <mach-o/nlist.h>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	79 #include <mach-o/getsect.h>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	80
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	81 /* Just playing to see if it would compile with the freebsd headers, it does,
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	82 * but because of the different values for RTLD_LOCAL etc, it would break binary
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	83 * compat... oh well
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	84 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	85 #ifndef __BSD_VISIBLE
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	86 #define __BSD_VISIBLE 1
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	87 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	88
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	89 /include "dlfcn.h"/
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	90 #ifdef __cplusplus
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	91 extern "C" {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	92 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	93
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	94 #if defined (__GNUC__) && __GNUC__ > 3
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	95 #define dl_restrict __restrict
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	96 #else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	97 #define dl_restrict
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	98 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	99
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	100 #ifndef _POSIX_SOURCE
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	101 /*
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	102 * Structure filled in by dladdr().
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	103 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	104 typedef struct SDL_OSX_dl_info {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	105 const char dli_fname; / Pathname of shared object */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	106 void dli_fbase; / Base address of shared object */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	107 const char dli_sname; / Name of nearest symbol */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	108 void dli_saddr; / Address of nearest symbol */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	109 } SDL_OSX_Dl_info;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	110
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	111 static int SDL_OSX_dladdr(const void * dl_restrict, SDL_OSX_Dl_info * dl_restrict);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	112 #endif /* ! _POSIX_SOURCE */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	113
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	114 static int SDL_OSX_dlclose(void * handle);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	115 static char * SDL_OSX_dlerror(void);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	116 static void * SDL_OSX_dlopen(const char *path, int mode);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	117 static void * SDL_OSX_dlsym(void * dl_restrict handle, const char * dl_restrict symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	118
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	119 #define RTLD_LAZY 0x1
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	120 #define RTLD_NOW 0x2
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	121 #define RTLD_LOCAL 0x4
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	122 #define RTLD_GLOBAL 0x8
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	123
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	124 #ifndef _POSIX_SOURCE
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	125 #define RTLD_NOLOAD 0x10
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	126 #define RTLD_NODELETE 0x80
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	127
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	128 /*
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	129 * Special handle arguments for SDL_OSX_dlsym().
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	130 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	131 #define RTLD_NEXT ((void ) -1) / Search subsequent objects. */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	132 #define RTLD_DEFAULT ((void ) -2) / Use default search algorithm. */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	133 #endif /* ! _POSIX_SOURCE */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	134
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	135 #ifdef __cplusplus
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	136 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	137 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	138
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	139 #ifndef dl_restrict
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	140 #define dl_restrict __restrict
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	141 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	142 /* This is not available on 10.1 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	143 #ifndef LC_LOAD_WEAK_DYLIB
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	144 #define LC_LOAD_WEAK_DYLIB (0x18 \| LC_REQ_DYLD)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	145 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	146
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	147 /* With this stuff here, this thing may actually compile/run on 10.0 systems
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	148 * Not that I have a 10.0 system to test it on anylonger
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	149 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	150 #ifndef LC_REQ_DYLD
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	151 #define LC_REQ_DYLD 0x80000000
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	152 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	153 #ifndef NSADDIMAGE_OPTION_RETURN_ONLY_IF_LOADED
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	154 #define NSADDIMAGE_OPTION_RETURN_ONLY_IF_LOADED 0x4
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	155 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	156 #ifndef NSADDIMAGE_OPTION_RETURN_ON_ERROR
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	157 #define NSADDIMAGE_OPTION_RETURN_ON_ERROR 0x1
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	158 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	159 #ifndef NSLOOKUPSYMBOLINIMAGE_OPTION_BIND
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	160 #define NSLOOKUPSYMBOLINIMAGE_OPTION_BIND 0x0
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	161 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	162 #ifndef NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	163 #define NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR 0x4
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	164 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	165 /* These symbols will be looked for in dyld */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	166 static const struct mach_header (dyld_NSAddImage) (const char *, unsigned long) = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	167 static int (dyld_NSIsSymbolNameDefinedInImage) (const struct mach_header , const char *) = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	168 static NSSymbol(*dyld_NSLookupSymbolInImage)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	169 (const struct mach_header , const char , unsigned long) = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	170
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	171 /* Define this to make dlcompat reuse data block. This way in theory we save
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	172 * a little bit of overhead. However we then couldn't correctly catch excess
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	173 * calls to SDL_OSX_dlclose(). Hence we don't use this feature
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	174 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	175 #undef REUSE_STATUS
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	176
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	177 /* Size of the internal error message buffer (used by dlerror()) */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	178 #define ERR_STR_LEN 251
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	179
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	180 /* Maximum number of search paths supported by getSearchPath */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	181 #define MAX_SEARCH_PATHS 32
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	182
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	183
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	184 #define MAGIC_DYLIB_OFI ((NSObjectFileImage) 'DYOF')
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	185 #define MAGIC_DYLIB_MOD ((NSModule) 'DYMO')
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	186
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	187 /* internal flags */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	188 #define DL_IN_LIST 0x01
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	189
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	190 /* our mutex */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	191 static pthread_mutex_t dlcompat_mutex;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	192 /* Our thread specific storage
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	193 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	194 static pthread_key_t dlerror_key;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	195
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	196 struct dlthread
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	197 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	198 int lockcnt;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	199 unsigned char errset;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	200 char errstr[ERR_STR_LEN];
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	201 };
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	202
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	203 /* This is our central data structure. Whenever a module is loaded via
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	204 * SDL_OSX_dlopen(), we create such a struct.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	205 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	206 struct dlstatus
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	207 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	208 struct dlstatus next; / pointer to next element in the linked list */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	209 NSModule module;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	210 const struct mach_header *lib;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	211 int refs; /* reference count */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	212 int mode; /* mode in which this module was loaded */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	213 dev_t device;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	214 ino_t inode;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	215 int flags; /* Any internal flags we may need */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	216 };
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	217
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	218 /* Head node of the dlstatus list */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	219 static struct dlstatus mainStatus = { 0, MAGIC_DYLIB_MOD, NULL, -1, RTLD_GLOBAL, 0, 0, 0 };
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	220 static struct dlstatus *stqueue = &mainStatus;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	221
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	222
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	223 /* Storage for the last error message (used by dlerror()) */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	224 /* static char err_str[ERR_STR_LEN]; */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	225 /* static int err_filled = 0; */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	226
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	227 /* Prototypes to internal functions */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	228 static void debug(const char *fmt, ...);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	229 static void error(const char *str, ...);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	230 static const char safegetenv(const char s);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	231 static const char *searchList(void);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	232 static const char *getSearchPath(int i);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	233 static const char getFullPath(int i, const char file);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	234 static const struct stat findFile(const char file, const char **fullPath);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	235 static int isValidStatus(struct dlstatus *status);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	236 static inline int isFlagSet(int mode, int flag);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	237 static struct dlstatus lookupStatus(const struct stat sbuf);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	238 static void insertStatus(struct dlstatus dls, const struct stat sbuf);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	239 static int promoteLocalToGlobal(struct dlstatus *dls);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	240 static void reference(struct dlstatus dls, int mode);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	241 static void dlsymIntern(struct dlstatus dls, const char *symbol, int canSetError);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	242 static struct dlstatus *allocStatus(void);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	243 static struct dlstatus loadModule(const char path, const struct stat *sbuf, int mode);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	244 static NSSymbol search_linked_libs(const struct mach_header mh, const char *symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	245 static const char get_lib_name(const struct mach_header mh);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	246 static const struct mach_header get_mach_header_from_NSModule(NSModule mod);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	247 static void dlcompat_init_func(void);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	248 static inline void dlcompat_init_check(void);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	249 static inline void dolock(void);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	250 static inline void dounlock(void);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	251 static void dlerrorfree(void *data);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	252 static void resetdlerror(void);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	253 static const struct mach_header my_find_image(const char name);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	254 static const struct mach_header image_for_address(const void address);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	255 static inline const char *dyld_error_str(void);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	256
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	257 #if FINK_BUILD
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	258 /* Two Global Functions */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	259 static void dlsym_prepend_underscore(void handle, const char *symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	260 static void dlsym_auto_underscore(void handle, const char *symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	261
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	262 /* And their _intern counterparts */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	263 static void dlsym_prepend_underscore_intern(void handle, const char *symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	264 static void dlsym_auto_underscore_intern(void handle, const char *symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	265 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	266
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	267 /* Functions */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	268
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	269 static void debug(const char *fmt, ...)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	270 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	271 #if DEBUG > 1
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	272 va_list arg;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	273 va_start(arg, fmt);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	274 fprintf(stderr, "DLDEBUG: ");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	275 vfprintf(stderr, fmt, arg);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	276 fprintf(stderr, "\n");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	277 fflush(stderr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	278 va_end(arg);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	279 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	280 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	281
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	282 static void error(const char *str, ...)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	283 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	284 va_list arg;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	285 struct dlthread *tss;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	286 char * err_str;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	287 va_start(arg, str);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	288 tss = pthread_getspecific(dlerror_key);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	289 err_str = tss->errstr;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	290 strncpy(err_str, "dlcompat: ", ERR_STR_LEN);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	291 vsnprintf(err_str + 10, ERR_STR_LEN - 10, str, arg);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	292 va_end(arg);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	293 debug("ERROR: %s\n", err_str);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	294 tss->errset = 1;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	295 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	296
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	297 static void warning(const char *str)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	298 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	299 #if DEBUG > 0
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	300 fprintf(stderr, "WARNING: dlcompat: %s\n", str);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	301 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	302 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	303
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	304 static const char safegetenv(const char s)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	305 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	306 const char *ss = getenv(s);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	307 return ss ? ss : "";
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	308 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	309
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	310 /* because this is only used for debugging and error reporting functions, we
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	311 * don't really care about how elegant it is... it could use the load
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	312 * commands to find the install name of the library, but...
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	313 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	314 static const char get_lib_name(const struct mach_header mh)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	315 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	316 unsigned long count = _dyld_image_count();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	317 unsigned long i;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	318 const char *val = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	319 if (mh)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	320 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	321 for (i = 0; i < count; i++)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	322 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	323 if (mh == _dyld_get_image_header(i))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	324 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	325 val = _dyld_get_image_name(i);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	326 break;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	327 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	328 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	329 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	330 return val;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	331 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	332
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	333 /* Returns the mach_header for the module bu going through all the loaded images
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	334 * and finding the one with the same name as the module. There really ought to be
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	335 * an api for doing this, would be faster, but there isn't one right now
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	336 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	337 static const struct mach_header get_mach_header_from_NSModule(NSModule mod)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	338 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	339 const char *mod_name = NSNameOfModule(mod);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	340 struct mach_header *mh = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	341 unsigned long count = _dyld_image_count();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	342 unsigned long i;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	343 debug("Module name: %s", mod_name);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	344 for (i = 0; i < count; i++)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	345 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	346 if (!strcmp(mod_name, _dyld_get_image_name(i)))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	347 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	348 mh = _dyld_get_image_header(i);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	349 break;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	350 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	351 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	352 return mh;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	353 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	354
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	355
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	356 /* Compute and return a list of all directories that we should search when
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	357 * trying to locate a module. We first look at the values of LD_LIBRARY_PATH
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	358 * and DYLD_LIBRARY_PATH, and then finally fall back to looking into
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	359 * /usr/lib and /lib. Since both of the environments variables can contain a
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	360 * list of colon seperated paths, we simply concat them and the two other paths
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	361 * into one big string, which we then can easily parse.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	362 * Splitting this string into the actual path list is done by getSearchPath()
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	363 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	364 static const char *searchList()
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	365 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	366 size_t buf_size;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	367 static char *buf=NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	368 const char *ldlp = safegetenv("LD_LIBRARY_PATH");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	369 const char *dyldlp = safegetenv("DYLD_LIBRARY_PATH");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	370 const char *stdpath = getenv("DYLD_FALLBACK_LIBRARY_PATH");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	371 if (!stdpath)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	372 stdpath = "/usr/local/lib:/lib:/usr/lib";
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	373 if (!buf)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	374 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	375 buf_size = strlen(ldlp) + strlen(dyldlp) + strlen(stdpath) + 4;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	376 buf = malloc(buf_size);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	377 snprintf(buf, buf_size, "%s%s%s%s%s%c", dyldlp, (dyldlp[0] ? ":" : ""), ldlp, (ldlp[0] ? ":" : ""),
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	378 stdpath, '\0');
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	379 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	380 return buf;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	381 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	382
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	383 /* Returns the ith search path from the list as computed by searchList() */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	384 static const char *getSearchPath(int i)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	385 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	386 static const char *list = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	387 static char path = (char )0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	388 static int end = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	389 static int numsize = MAX_SEARCH_PATHS;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	390 static char **tmp;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	391 /* So we can call free() in the "destructor" we use i=-1 to return the alloc'd array */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	392 if (i == -1)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	393 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	394 return (const char*)path;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	395 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	396 if (!path)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	397 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	398 path = (char )calloc(MAX_SEARCH_PATHS, sizeof(char ));
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	399 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	400 if (!list && !end)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	401 list = searchList();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	402 if (i >= (numsize))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	403 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	404 debug("Increasing size for long PATH");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	405 tmp = (char )calloc((MAX_SEARCH_PATHS + numsize), sizeof(char ));
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	406 if (tmp)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	407 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	408 memcpy(tmp, path, sizeof(char *) numsize);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	409 free(path);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	410 path = tmp;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	411 numsize += MAX_SEARCH_PATHS;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	412 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	413 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	414 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	415 return 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	416 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	417 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	418
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	419 while (!path[i] && !end)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	420 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	421 path[i] = strsep((char **)&list, ":");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	422
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	423 if (path[i][0] == 0)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	424 path[i] = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	425 end = (list == 0);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	426 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	427 return path[i];
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	428 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	429
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	430 static const char getFullPath(int i, const char file)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	431 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	432 static char buf[PATH_MAX];
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	433 const char *path = getSearchPath(i);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	434 if (path)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	435 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	436 snprintf(buf, PATH_MAX, "%s/%s", path, file);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	437 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	438 return path ? buf : 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	439 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	440
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	441 /* Given a file name, try to determine the full path for that file. Starts
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	442 * its search in the current directory, and then tries all paths in the
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	443 * search list in the order they are specified there.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	444 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	445 static const struct stat findFile(const char file, const char **fullPath)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	446 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	447 int i = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	448 static struct stat sbuf;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	449 char *fileName;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	450 debug("finding file %s", file);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	451 *fullPath = file;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	452 if (0 == stat(file, &sbuf))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	453 return &sbuf;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	454 if (strchr(file, '/'))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	455 return 0; /* If the path had a / we don't look in env var places */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	456 fileName = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	457 if (!fileName)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	458 fileName = (char *)file;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	459 while ((*fullPath = getFullPath(i++, fileName)))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	460 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	461 if (0 == stat(*fullPath, &sbuf))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	462 return &sbuf;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	463 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	464 ;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	465 return 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	466 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	467
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	468 /* Determine whether a given dlstatus is valid or not */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	469 static int isValidStatus(struct dlstatus *status)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	470 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	471 /* Walk the list to verify status is contained in it */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	472 struct dlstatus *dls = stqueue;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	473 while (dls && status != dls)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	474 dls = dls->next;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	475 if (dls == 0)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	476 error("invalid handle");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	477 else if ((dls->module == 0) \|\| (dls->refs == 0))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	478 error("handle to closed library");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	479 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	480 return TRUE;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	481 return FALSE;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	482 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	483
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	484 static inline int isFlagSet(int mode, int flag)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	485 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	486 return (mode & flag) == flag;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	487 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	488
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	489 static struct dlstatus lookupStatus(const struct stat sbuf)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	490 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	491 struct dlstatus *dls = stqueue;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	492 debug("looking for status");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	493 while (dls && ( /* isFlagSet(dls->mode, RTLD_UNSHARED) */ 0
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	494 \|\| sbuf->st_dev != dls->device \|\| sbuf->st_ino != dls->inode))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	495 dls = dls->next;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	496 return dls;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	497 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	498
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	499 static void insertStatus(struct dlstatus dls, const struct stat sbuf)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	500 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	501 debug("inserting status");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	502 dls->inode = sbuf->st_ino;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	503 dls->device = sbuf->st_dev;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	504 dls->refs = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	505 dls->mode = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	506 if ((dls->flags & DL_IN_LIST) == 0)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	507 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	508 dls->next = stqueue;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	509 stqueue = dls;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	510 dls->flags \|= DL_IN_LIST;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	511 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	512 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	513
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	514 static struct dlstatus *allocStatus()
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	515 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	516 struct dlstatus *dls;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	517 #ifdef REUSE_STATUS
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	518 dls = stqueue;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	519 while (dls && dls->module)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	520 dls = dls->next;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	521 if (!dls)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	522 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	523 dls = calloc(sizeof(*dls),1);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	524 return dls;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	525 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	526
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	527 static int promoteLocalToGlobal(struct dlstatus *dls)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	528 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	529 static int (*p) (NSModule module) = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	530 debug("promoting");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	531 if (!p)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	532 _dyld_func_lookup("__dyld_NSMakePrivateModulePublic", (unsigned long *)&p);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	533 return (dls->module == MAGIC_DYLIB_MOD) \|\| (p && p(dls->module));
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	534 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	535
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	536 static void reference(struct dlstatus dls, int mode)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	537 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	538 if (dls)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	539 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	540 if (dls->module == MAGIC_DYLIB_MOD && isFlagSet(mode, RTLD_LOCAL))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	541 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	542 warning("trying to open a .dylib with RTLD_LOCAL");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	543 error("unable to open a .dylib with RTLD_LOCAL");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	544 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	545 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	546 if (isFlagSet(mode, RTLD_GLOBAL) &&
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	547 !isFlagSet(dls->mode, RTLD_GLOBAL) && !promoteLocalToGlobal(dls))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	548 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	549 error("unable to promote local module to global");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	550 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	551 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	552 dls->mode \|= mode;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	553 dls->refs++;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	554 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	555 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	556 debug("reference called with NULL argument");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	557
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	558 return dls;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	559 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	560
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	561 static const struct mach_header my_find_image(const char name)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	562 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	563 const struct mach_header *mh = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	564 const char *id = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	565 int i = _dyld_image_count();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	566 int j;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	567 mh = (struct mach_header *)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	568 dyld_NSAddImage(name, NSADDIMAGE_OPTION_RETURN_ONLY_IF_LOADED \|
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	569 NSADDIMAGE_OPTION_RETURN_ON_ERROR);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	570 if (!mh)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	571 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	572 for (j = 0; j < i; j++)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	573 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	574 id = _dyld_get_image_name(j);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	575 if (!strcmp(id, name))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	576 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	577 mh = _dyld_get_image_header(j);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	578 break;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	579 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	580 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	581 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	582 return mh;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	583 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	584
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	585 /*
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	586 * dyld adds libraries by first adding the directly dependant libraries in link order, and
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	587 * then adding the dependencies for those libraries, so we should do the same... but we don't
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	588 * bother adding the extra dependencies, if the symbols are neither in the loaded image nor
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	589 * any of it's direct dependencies, then it probably isn't there.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	590 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	591 static NSSymbol search_linked_libs(const struct mach_header mh, const char *symbol)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	592 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	593 unsigned int n;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	594 struct load_command *lc = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	595 struct mach_header *wh;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	596 NSSymbol *nssym = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	597 if (dyld_NSAddImage && dyld_NSIsSymbolNameDefinedInImage && dyld_NSLookupSymbolInImage)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	598 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	599 lc = (struct load_command )((char )mh + sizeof(struct mach_header));
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	600 for (n = 0; n < mh->ncmds; n++, lc = (struct load_command )((char )lc + lc->cmdsize))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	601 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	602 if ((LC_LOAD_DYLIB == lc->cmd) \|\| (LC_LOAD_WEAK_DYLIB == lc->cmd))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	603 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	604 if ((wh = (struct mach_header *)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	605 my_find_image((char )(((struct dylib_command )lc)->dylib.name.offset +
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	606 (char *)lc))))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	607 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	608 if (dyld_NSIsSymbolNameDefinedInImage(wh, symbol))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	609 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	610 nssym = dyld_NSLookupSymbolInImage(wh,
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	611 symbol,
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	612 NSLOOKUPSYMBOLINIMAGE_OPTION_BIND \|
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	613 NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	614 break;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	615 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	616 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	617 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	618 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	619 if ((!nssym) && NSIsSymbolNameDefined(symbol))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	620 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	621 /* I've never seen this debug message...*/
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	622 debug("Symbol \"%s\" is defined but was not found", symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	623 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	624 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	625 return nssym;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	626 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	627
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	628 /* Up to the caller to free() returned string */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	629 static inline const char *dyld_error_str()
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	630 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	631 NSLinkEditErrors dylder;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	632 int dylderno;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	633 const char *dylderrstr;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	634 const char *dyldfile;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	635 const char* retStr = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	636 NSLinkEditError(&dylder, &dylderno, &dyldfile, &dylderrstr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	637 if (dylderrstr && strlen(dylderrstr))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	638 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	639 retStr = malloc(strlen(dylderrstr) +1);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	640 strcpy((char*)retStr,dylderrstr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	641 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	642 return retStr;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	643 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	644
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	645 static void dlsymIntern(struct dlstatus dls, const char *symbol, int canSetError)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	646 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	647 NSSymbol *nssym = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	648 #ifdef __GCC__
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	649 void caller = __builtin_return_address(1); / Be very careful about inlining */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	650 #else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	651 void *caller = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	652 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	653 const struct mach_header *caller_mh = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	654 const char* savedErrorStr = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	655 resetdlerror();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	656 #ifndef RTLD_SELF
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	657 #define RTLD_SELF ((void *) -3)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	658 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	659 if (NULL == dls)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	660 dls = RTLD_SELF;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	661 if ((RTLD_NEXT == dls) \|\| (RTLD_SELF == dls))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	662 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	663 if (dyld_NSIsSymbolNameDefinedInImage && dyld_NSLookupSymbolInImage && caller)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	664 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	665 caller_mh = image_for_address(caller);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	666 if (RTLD_SELF == dls)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	667 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	668 /* FIXME: We should be using the NSModule api, if SELF is an MH_BUNDLE
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	669 * But it appears to work anyway, and looking at the code in dyld_libfuncs.c
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	670 * this is acceptable.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	671 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	672 if (dyld_NSIsSymbolNameDefinedInImage(caller_mh, symbol))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	673 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	674 nssym = dyld_NSLookupSymbolInImage(caller_mh,
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	675 symbol,
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	676 NSLOOKUPSYMBOLINIMAGE_OPTION_BIND \|
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	677 NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	678 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	679 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	680 if (!nssym)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	681 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	682 if (RTLD_SELF == dls)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	683 savedErrorStr = dyld_error_str();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	684 nssym = search_linked_libs(caller_mh, symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	685 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	686 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	687 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	688 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	689 if (canSetError)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	690 error("RTLD_SELF and RTLD_NEXT are not supported");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	691 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	692 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	693 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	694 if (!nssym)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	695 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	696
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	697 if (RTLD_DEFAULT == dls)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	698 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	699 dls = &mainStatus;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	700 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	701 if (!isValidStatus(dls))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	702 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	703
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	704 if (dls->module != MAGIC_DYLIB_MOD)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	705 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	706 nssym = NSLookupSymbolInModule(dls->module, symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	707 if (!nssym && NSIsSymbolNameDefined(symbol))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	708 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	709 debug("Searching dependencies");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	710 savedErrorStr = dyld_error_str();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	711 nssym = search_linked_libs(get_mach_header_from_NSModule(dls->module), symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	712 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	713 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	714 else if (dls->lib && dyld_NSIsSymbolNameDefinedInImage && dyld_NSLookupSymbolInImage)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	715 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	716 if (dyld_NSIsSymbolNameDefinedInImage(dls->lib, symbol))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	717 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	718 nssym = dyld_NSLookupSymbolInImage(dls->lib,
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	719 symbol,
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	720 NSLOOKUPSYMBOLINIMAGE_OPTION_BIND \|
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	721 NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	722 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	723 else if (NSIsSymbolNameDefined(symbol))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	724 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	725 debug("Searching dependencies");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	726 savedErrorStr = dyld_error_str();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	727 nssym = search_linked_libs(dls->lib, symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	728 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	729 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	730 else if (dls->module == MAGIC_DYLIB_MOD)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	731 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	732 /* Global context, use NSLookupAndBindSymbol */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	733 if (NSIsSymbolNameDefined(symbol))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	734 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	735 /* There doesn't seem to be a return on error option for this call???
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	736 this is potentially broken, if binding fails, it will improperly
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	737 exit the application. */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	738 nssym = NSLookupAndBindSymbol(symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	739 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	740 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	741 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	742 if (savedErrorStr)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	743 free((char*)savedErrorStr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	744 savedErrorStr = malloc(256);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	745 snprintf((char*)savedErrorStr, 256, "Symbol \"%s\" not in global context",symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	746 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	747 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	748 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	749 /* Error reporting */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	750 if (!nssym)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	751 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	752 if (!savedErrorStr \|\| !strlen(savedErrorStr))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	753 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	754 if (savedErrorStr)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	755 free((char*)savedErrorStr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	756 savedErrorStr = malloc(256);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	757 snprintf((char*)savedErrorStr, 256,"Symbol \"%s\" not found",symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	758 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	759 if (canSetError)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	760 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	761 error(savedErrorStr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	762 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	763 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	764 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	765 debug(savedErrorStr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	766 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	767 if (savedErrorStr)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	768 free((char*)savedErrorStr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	769 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	770 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	771 return NSAddressOfSymbol(nssym);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	772 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	773
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	774 static struct dlstatus loadModule(const char path, const struct stat *sbuf, int mode)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	775 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	776 NSObjectFileImage ofi = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	777 NSObjectFileImageReturnCode ofirc;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	778 struct dlstatus *dls;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	779 NSLinkEditErrors ler;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	780 int lerno;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	781 const char *errstr;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	782 const char *file;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	783 void (*init) (void);
1190 173c063d4f55 OS/2 port! Ryan C. Gordon <icculus@icculus.org> parents: 1173 diff changeset	784
1173 e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	785 ofirc = NSCreateObjectFileImageFromFile(path, &ofi);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	786 switch (ofirc)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	787 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	788 case NSObjectFileImageSuccess:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	789 break;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	790 case NSObjectFileImageInappropriateFile:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	791 if (dyld_NSAddImage && dyld_NSIsSymbolNameDefinedInImage && dyld_NSLookupSymbolInImage)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	792 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	793 if (isFlagSet(mode, RTLD_LOCAL))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	794 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	795 warning("trying to open a .dylib with RTLD_LOCAL");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	796 error("unable to open this file with RTLD_LOCAL");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	797 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	798 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	799 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	800 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	801 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	802 error("opening this file is unsupported on this system");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	803 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	804 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	805 break;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	806 case NSObjectFileImageFailure:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	807 error("object file setup failure");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	808 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	809 case NSObjectFileImageArch:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	810 error("no object for this architecture");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	811 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	812 case NSObjectFileImageFormat:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	813 error("bad object file format");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	814 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	815 case NSObjectFileImageAccess:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	816 error("can't read object file");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	817 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	818 default:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	819 error("unknown error from NSCreateObjectFileImageFromFile()");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	820 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	821 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	822 dls = lookupStatus(sbuf);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	823 if (!dls)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	824 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	825 dls = allocStatus();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	826 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	827 if (!dls)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	828 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	829 error("unable to allocate memory");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	830 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	831 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	832 // dls->lib = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	833 if (ofirc == NSObjectFileImageInappropriateFile)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	834 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	835 if ((dls->lib = dyld_NSAddImage(path, NSADDIMAGE_OPTION_RETURN_ON_ERROR)))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	836 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	837 debug("Dynamic lib loaded at %ld", dls->lib);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	838 ofi = MAGIC_DYLIB_OFI;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	839 dls->module = MAGIC_DYLIB_MOD;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	840 ofirc = NSObjectFileImageSuccess;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	841 /* Although it is possible with a bit of work to modify this so it works and
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	842 functions with RTLD_NOW, I don't deem it necessary at the moment */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	843 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	844 if (!(dls->module))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	845 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	846 NSLinkEditError(&ler, &lerno, &file, &errstr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	847 if (!errstr \|\| (!strlen(errstr)))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	848 error("Can't open this file type");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	849 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	850 error(errstr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	851 if ((dls->flags & DL_IN_LIST) == 0)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	852 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	853 free(dls);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	854 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	855 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	856 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	857 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	858 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	859 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	860 dls->module = NSLinkModule(ofi, path,
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	861 NSLINKMODULE_OPTION_RETURN_ON_ERROR \|
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	862 NSLINKMODULE_OPTION_PRIVATE \|
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	863 (isFlagSet(mode, RTLD_NOW) ? NSLINKMODULE_OPTION_BINDNOW : 0));
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	864 NSDestroyObjectFileImage(ofi);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	865 if (dls->module)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	866 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	867 dls->lib = get_mach_header_from_NSModule(dls->module);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	868 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	869 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	870 if (!dls->module)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	871 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	872 NSLinkEditError(&ler, &lerno, &file, &errstr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	873 if ((dls->flags & DL_IN_LIST) == 0)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	874 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	875 free(dls);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	876 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	877 error(errstr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	878 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	879 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	880
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	881 insertStatus(dls, sbuf);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	882 dls = reference(dls, mode);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	883 if ((init = dlsymIntern(dls, "__init", 0)))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	884 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	885 debug("calling _init()");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	886 init();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	887 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	888 return dls;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	889 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	890
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	891 inline static void dlcompat_init_check(void)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	892 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	893 static pthread_mutex_t l = PTHREAD_MUTEX_INITIALIZER;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	894 static int init_done = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	895
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	896 pthread_mutex_lock(&l);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	897 if (!init_done) {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	898 dlcompat_init_func();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	899 init_done = 1;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	900 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	901 pthread_mutex_unlock(&l);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	902 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	903
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	904 static void dlcompat_init_func(void)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	905 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	906 _dyld_func_lookup("__dyld_NSAddImage", (unsigned long *)&dyld_NSAddImage);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	907 _dyld_func_lookup("__dyld_NSIsSymbolNameDefinedInImage",
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	908 (unsigned long *)&dyld_NSIsSymbolNameDefinedInImage);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	909 _dyld_func_lookup("__dyld_NSLookupSymbolInImage", (unsigned long *)&dyld_NSLookupSymbolInImage);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	910 if (pthread_mutex_init(&dlcompat_mutex, NULL))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	911 exit(1);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	912 if (pthread_key_create(&dlerror_key, &dlerrorfree))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	913 exit(1);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	914 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	915
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	916 static void resetdlerror()
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	917 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	918 struct dlthread *tss;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	919 tss = pthread_getspecific(dlerror_key);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	920 tss->errset = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	921 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	922
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	923 static void dlerrorfree(void *data)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	924 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	925 free(data);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	926 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	927
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	928 /* We kind of want a recursive lock here, but meet a little trouble
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	929 * because they are not available pre OS X 10.2, so we fake it
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	930 * using thread specific storage to keep a lock count
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	931 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	932 static inline void dolock(void)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	933 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	934 int err = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	935 struct dlthread *tss;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	936 dlcompat_init_check();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	937 tss = pthread_getspecific(dlerror_key);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	938 if (!tss)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	939 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	940 tss = malloc(sizeof(struct dlthread));
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	941 tss->lockcnt = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	942 tss->errset = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	943 if (pthread_setspecific(dlerror_key, tss))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	944 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	945 fprintf(stderr,"dlcompat: pthread_setspecific failed\n");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	946 exit(1);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	947 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	948 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	949 if (!tss->lockcnt)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	950 err = pthread_mutex_lock(&dlcompat_mutex);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	951 tss->lockcnt = tss->lockcnt +1;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	952 if (err)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	953 exit(err);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	954 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	955
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	956 static inline void dounlock(void)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	957 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	958 int err = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	959 struct dlthread *tss;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	960 tss = pthread_getspecific(dlerror_key);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	961 tss->lockcnt = tss->lockcnt -1;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	962 if (!tss->lockcnt)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	963 err = pthread_mutex_unlock(&dlcompat_mutex);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	964 if (err)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	965 exit(err);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	966 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	967
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	968 static void SDL_OSX_dlopen(const char path, int mode)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	969 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	970 const struct stat *sbuf;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	971 struct dlstatus *dls;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	972 const char *fullPath;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	973
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	974 dolock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	975 resetdlerror();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	976 if (!path)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	977 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	978 dls = &mainStatus;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	979 goto dlopenok;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	980 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	981 if (!(sbuf = findFile(path, &fullPath)))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	982 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	983 error("file \"%s\" not found", path);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	984 goto dlopenerror;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	985 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	986 /* Now checks that it hasn't been closed already */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	987 if ((dls = lookupStatus(sbuf)) && (dls->refs > 0))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	988 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	989 /* debug("status found"); */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	990 dls = reference(dls, mode);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	991 goto dlopenok;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	992 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	993 #ifdef RTLD_NOLOAD
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	994 if (isFlagSet(mode, RTLD_NOLOAD))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	995 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	996 error("no existing handle and RTLD_NOLOAD specified");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	997 goto dlopenerror;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	998 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	999 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1000 if (isFlagSet(mode, RTLD_LAZY) && isFlagSet(mode, RTLD_NOW))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1001 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1002 error("how can I load something both RTLD_LAZY and RTLD_NOW?");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1003 goto dlopenerror;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1004 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1005 dls = loadModule(fullPath, sbuf, mode);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1006
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1007 dlopenok:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1008 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1009 return (void *)dls;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1010 dlopenerror:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1011 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1012 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1013 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1014
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1015 #if !FINK_BUILD
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1016 static void SDL_OSX_dlsym(void dl_restrict handle, const char * dl_restrict symbol)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1017 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1018 int sym_len = strlen(symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1019 void *value = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1020 char *malloc_sym = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1021 dolock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1022 malloc_sym = malloc(sym_len + 2);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1023 if (malloc_sym)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1024 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1025 sprintf(malloc_sym, "_%s", symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1026 value = dlsymIntern(handle, malloc_sym, 1);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1027 free(malloc_sym);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1028 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1029 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1030 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1031 error("Unable to allocate memory");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1032 goto dlsymerror;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1033 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1034 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1035 return value;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1036 dlsymerror:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1037 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1038 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1039 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1040 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1041
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1042 #if FINK_BUILD
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1043
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1044 static void dlsym_prepend_underscore(void handle, const char *symbol)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1045 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1046 void *answer;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1047 dolock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1048 answer = dlsym_prepend_underscore_intern(handle, symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1049 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1050 return answer;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1051 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1052
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1053 static void dlsym_prepend_underscore_intern(void handle, const char *symbol)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1054 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1055 /*
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1056 * A quick and easy way for porting packages which call dlsym(handle,"sym")
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1057 * If the porter adds -Ddlsym=dlsym_prepend_underscore to the CFLAGS then
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1058 * this function will be called, and will add the required underscore.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1059 *
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1060 * Note that I haven't figured out yet which should be "standard", prepend
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1061 * the underscore always, or not at all. These global functions need to go away
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1062 * for opendarwin.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1063 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1064 int sym_len = strlen(symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1065 void *value = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1066 char *malloc_sym = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1067 malloc_sym = malloc(sym_len + 2);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1068 if (malloc_sym)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1069 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1070 sprintf(malloc_sym, "_%s", symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1071 value = dlsymIntern(handle, malloc_sym, 1);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1072 free(malloc_sym);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1073 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1074 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1075 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1076 error("Unable to allocate memory");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1077 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1078 return value;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1079 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1080
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1081 static void dlsym_auto_underscore(void handle, const char *symbol)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1082 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1083 void *answer;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1084 dolock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1085 answer = dlsym_auto_underscore_intern(handle, symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1086 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1087 return answer;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1088
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1089 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1090 static void dlsym_auto_underscore_intern(void handle, const char *symbol)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1091 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1092 struct dlstatus *dls = handle;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1093 void *addr = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1094 addr = dlsymIntern(dls, symbol, 0);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1095 if (!addr)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1096 addr = dlsym_prepend_underscore_intern(handle, symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1097 return addr;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1098 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1099
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1100
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1101 static void SDL_OSX_dlsym(void dl_restrict handle, const char * dl_restrict symbol)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1102 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1103 struct dlstatus *dls = handle;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1104 void *addr = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1105 dolock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1106 addr = dlsymIntern(dls, symbol, 1);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1107 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1108 return addr;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1109 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1110 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1111
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1112 static int SDL_OSX_dlclose(void *handle)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1113 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1114 struct dlstatus *dls = handle;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1115 dolock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1116 resetdlerror();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1117 if (!isValidStatus(dls))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1118 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1119 goto dlcloseerror;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1120 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1121 if (dls->module == MAGIC_DYLIB_MOD)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1122 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1123 const char *name;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1124 if (!dls->lib)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1125 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1126 name = "global context";
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1127 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1128 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1129 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1130 name = get_lib_name(dls->lib);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1131 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1132 warning("trying to close a .dylib!");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1133 error("Not closing \"%s\" - dynamic libraries cannot be closed", name);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1134 goto dlcloseerror;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1135 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1136 if (!dls->module)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1137 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1138 error("module already closed");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1139 goto dlcloseerror;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1140 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1141
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1142 if (dls->refs == 1)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1143 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1144 unsigned long options = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1145 void (*fini) (void);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1146 if ((fini = dlsymIntern(dls, "__fini", 0)))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1147 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1148 debug("calling _fini()");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1149 fini();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1150 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1151 options \|= NSUNLINKMODULE_OPTION_RESET_LAZY_REFERENCES;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1152 #ifdef RTLD_NODELETE
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1153 if (isFlagSet(dls->mode, RTLD_NODELETE))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1154 options \|= NSUNLINKMODULE_OPTION_KEEP_MEMORY_MAPPED;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1155 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1156 if (!NSUnLinkModule(dls->module, options))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1157 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1158 error("unable to unlink module");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1159 goto dlcloseerror;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1160 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1161 dls->refs--;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1162 dls->module = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1163 /* Note: the dlstatus struct dls is neither removed from the list
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1164 * nor is the memory it occupies freed. This shouldn't pose a
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1165 * problem in mostly all cases, though.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1166 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1167 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1168 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1169 return 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1170 dlcloseerror:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1171 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1172 return 1;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1173 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1174
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1175 static char *SDL_OSX_dlerror(void)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1176 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1177 struct dlthread *tss;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1178 const char * err_str = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1179 dlcompat_init_check();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1180 tss = pthread_getspecific(dlerror_key);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1181 if (tss != NULL && tss->errset != 0) {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1182 tss->errset = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1183 err_str = tss->errstr;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1184 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1185 return (err_str);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1186 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1187
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1188 /* Given an address, return the mach_header for the image containing it
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1189 * or zero if the given address is not contained in any loaded images.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1190 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1191 static const struct mach_header image_for_address(const void address)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1192 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1193 unsigned long i;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1194 unsigned long j;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1195 unsigned long count = _dyld_image_count();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1196 struct mach_header *mh = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1197 struct load_command *lc = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1198 unsigned long addr = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1199 for (i = 0; i < count; i++)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1200 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1201 addr = (unsigned long)address - _dyld_get_image_vmaddr_slide(i);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1202 mh = _dyld_get_image_header(i);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1203 if (mh)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1204 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1205 lc = (struct load_command )((char )mh + sizeof(struct mach_header));
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1206 for (j = 0; j < mh->ncmds; j++, lc = (struct load_command )((char )lc + lc->cmdsize))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1207 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1208 if (LC_SEGMENT == lc->cmd &&
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1209 addr >= ((struct segment_command *)lc)->vmaddr &&
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1210 addr <
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1211 ((struct segment_command )lc)->vmaddr + ((struct segment_command )lc)->vmsize)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1212 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1213 goto image_found;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1214 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1215 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1216 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1217 mh = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1218 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1219 image_found:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1220 return mh;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1221 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1222
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1223 static int SDL_OSX_dladdr(const void * dl_restrict p, SDL_OSX_Dl_info * dl_restrict info)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1224 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1225 /*
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1226 FIXME: USe the routine image_for_address.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1227 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1228 unsigned long i;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1229 unsigned long j;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1230 unsigned long count = _dyld_image_count();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1231 struct mach_header *mh = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1232 struct load_command *lc = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1233 unsigned long addr = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1234 unsigned long table_off = (unsigned long)0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1235 int found = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1236 if (!info)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1237 return 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1238 dolock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1239 resetdlerror();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1240 info->dli_fname = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1241 info->dli_fbase = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1242 info->dli_sname = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1243 info->dli_saddr = 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1244 /* Some of this was swiped from code posted by Douglas Davidson <ddavidso AT apple DOT com>
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1245 * to darwin-development AT lists DOT apple DOT com and slightly modified
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1246 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1247 for (i = 0; i < count; i++)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1248 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1249 addr = (unsigned long)p - _dyld_get_image_vmaddr_slide(i);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1250 mh = _dyld_get_image_header(i);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1251 if (mh)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1252 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1253 lc = (struct load_command )((char )mh + sizeof(struct mach_header));
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1254 for (j = 0; j < mh->ncmds; j++, lc = (struct load_command )((char )lc + lc->cmdsize))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1255 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1256 if (LC_SEGMENT == lc->cmd &&
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1257 addr >= ((struct segment_command *)lc)->vmaddr &&
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1258 addr <
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1259 ((struct segment_command )lc)->vmaddr + ((struct segment_command )lc)->vmsize)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1260 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1261 info->dli_fname = _dyld_get_image_name(i);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1262 info->dli_fbase = (void *)mh;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1263 found = 1;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1264 break;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1265 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1266 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1267 if (found)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1268 break;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1269 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1270 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1271 if (!found)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1272 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1273 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1274 return 0;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1275 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1276 lc = (struct load_command )((char )mh + sizeof(struct mach_header));
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1277 for (j = 0; j < mh->ncmds; j++, lc = (struct load_command )((char )lc + lc->cmdsize))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1278 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1279 if (LC_SEGMENT == lc->cmd)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1280 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1281 if (!strcmp(((struct segment_command *)lc)->segname, "__LINKEDIT"))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1282 break;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1283 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1284 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1285 table_off =
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1286 ((unsigned long)((struct segment_command *)lc)->vmaddr) -
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1287 ((unsigned long)((struct segment_command *)lc)->fileoff) + _dyld_get_image_vmaddr_slide(i);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1288 debug("table off %x", table_off);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1289
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1290 lc = (struct load_command )((char )mh + sizeof(struct mach_header));
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1291 for (j = 0; j < mh->ncmds; j++, lc = (struct load_command )((char )lc + lc->cmdsize))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1292 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1293 if (LC_SYMTAB == lc->cmd)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1294 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1295
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1296 struct nlist symtable = (struct nlist )(((struct symtab_command *)lc)->symoff + table_off);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1297 unsigned long numsyms = ((struct symtab_command *)lc)->nsyms;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1298 struct nlist *nearest = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1299 unsigned long diff = 0xffffffff;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1300 unsigned long strtable = (unsigned long)(((struct symtab_command *)lc)->stroff + table_off);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1301 debug("symtable %x", symtable);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1302 for (i = 0; i < numsyms; i++)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1303 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1304 /* Ignore the following kinds of Symbols */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1305 if ((!symtable->n_value) /* Undefined */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1306 \|\| (symtable->n_type >= N_PEXT) /* Debug symbol */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1307 \|\| (!(symtable->n_type & N_EXT)) /* Local Symbol */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1308 )
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1309 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1310 symtable++;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1311 continue;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1312 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1313 if ((addr >= symtable->n_value) && (diff >= (symtable->n_value - addr)))
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1314 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1315 diff = (unsigned long)symtable->n_value - addr;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1316 nearest = symtable;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1317 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1318 symtable++;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1319 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1320 if (nearest)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1321 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1322 info->dli_saddr = nearest->n_value + ((void *)p - addr);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1323 info->dli_sname = (char *)(strtable + nearest->n_un.n_strx);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1324 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1325 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1326 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1327 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1328 return 1;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1329 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1330
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1331
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1332 /*
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1333 * Implement the dlfunc() interface, which behaves exactly the same as
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1334 * dlsym() except that it returns a function pointer instead of a data
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1335 * pointer. This can be used by applications to avoid compiler warnings
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1336 * about undefined behavior, and is intended as prior art for future
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1337 * POSIX standardization. This function requires that all pointer types
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1338 * have the same representation, which is true on all platforms FreeBSD
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1339 * runs on, but is not guaranteed by the C standard.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1340 */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1341 #if 0
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1342 static dlfunc_t SDL_OSX_dlfunc(void * dl_restrict handle, const char * dl_restrict symbol)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1343 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1344 union
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1345 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1346 void *d;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1347 dlfunc_t f;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1348 } rv;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1349 int sym_len = strlen(symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1350 char *malloc_sym = NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1351 dolock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1352 malloc_sym = malloc(sym_len + 2);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1353 if (malloc_sym)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1354 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1355 sprintf(malloc_sym, "_%s", symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1356 rv.d = dlsymIntern(handle, malloc_sym, 1);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1357 free(malloc_sym);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1358 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1359 else
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1360 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1361 error("Unable to allocate memory");
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1362 goto dlfuncerror;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1363 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1364 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1365 return rv.f;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1366 dlfuncerror:
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1367 dounlock();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1368 return NULL;
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1369 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1370 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1371
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1372
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1373
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1374 /* dlcompat ends, here's the SDL interface... --ryan. */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1375
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1376
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1377 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1378 /* System dependent library loading routines */
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1379
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1380 #if !SDL_INTERNAL_BUILDING_LOADSO
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1381 #error Do not compile directly...compile src/SDL_loadso.c instead!
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1382 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1383
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1384 #if !defined(MACOSX)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1385 #error Compiling for the wrong platform?
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1386 #elif defined(USE_DLOPEN)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1387 #error Do not use USE_DLOPEN on Mac OS X.
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1388 #endif
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1389
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1390 #include "SDL_types.h"
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1391 #include "SDL_error.h"
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1392 #include "SDL_loadso.h"
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1393
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1394 void SDL_LoadObject(const char sofile)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1395 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1396 void *handle = SDL_OSX_dlopen(sofile, RTLD_NOW);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1397 const char loaderror = (char )SDL_OSX_dlerror();
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1398 if ( handle == NULL ) {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1399 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1400 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1401 return(handle);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1402 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1403
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1404 void SDL_LoadFunction(void handle, const char *name)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1405 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1406 void *symbol = SDL_OSX_dlsym(handle, name);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1407 if ( symbol == NULL ) {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1408 SDL_SetError("Failed loading %s: %s", name, (const char *)SDL_OSX_dlerror());
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1409 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1410 return(symbol);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1411 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1412
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1413 void SDL_UnloadObject(void *handle)
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1414 {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1415 if ( handle != NULL ) {
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1416 SDL_OSX_dlclose(handle);
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1417 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1418 }
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1419
e9cf8c1b4590 Split up src/SDL_loadso.c into platform directories. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1420

Mercurial > sdl-ios-xcode

annotate src/loadso/macosx/SDL_loadso.c @ 1228:f4a3a4129d04