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changeset 8:5502f175d348

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Show functions being called
author Thinker K.F. Li <thinker@codemud.net>
date Wed, 08 Sep 2010 22:16:25 +0800
parents 7fec19e27411
children 958c2366e682
files src/cospy.c src/test.c
diffstat 2 files changed, 29 insertions(+), 4 deletions(-) [+]
line wrap: on
line diff
--- a/src/cospy.c	Wed Sep 08 21:35:16 2010 +0800
+++ b/src/cospy.c	Wed Sep 08 22:16:25 2010 +0800
@@ -77,21 +77,46 @@
     return type_str;
 }
 
+/*! \brief Show functions that called by a specified function.
+ *
+ * \param cgn is cgraph_node of a function.
+ */
+static void
+show_callees(struct cgraph_node *cgn) {
+    struct cgraph_edge *edge;
+    struct cgraph_node *callee_cgn;
+    tree callee, callee_name;
+
+    /* Follow edges to called functions */
+    edge = cgn->callees;
+    while(edge) {
+	callee_cgn = edge->callee;
+	callee = callee_cgn->decl;
+	callee_name = DECL_NAME(callee);
+	
+	printf("    call %s\n", IDENTIFIER_POINTER(callee_name));
+	
+	edge = edge->next_callee;
+    }
+}
+
 static void
 handle_all_passes(void *gcc_data, void *user_data) {
     tree decl;
     tree fntype;
     tree arg, arg_name;
     tree arg_type;
+    struct cgraph_node *cgn;
     char *arg_type_str;
     function_args_iterator itr;
     
     decl = cfun->decl;
-    
-    printf("decl %x\n", decl);
-    printf("  %s:%d:%s\n", current_function_name(),
+    cgn = cgraph_node(decl);
+     
+    printf("%s:%d:%s\n", current_function_name(),
 	   DECL_SOURCE_LINE(decl),
 	   DECL_SOURCE_FILE(decl));
+    show_callees(cgn);
     
     arg = DECL_ARGUMENTS(decl);
     while(arg) {
--- a/src/test.c	Wed Sep 08 21:35:16 2010 +0800
+++ b/src/test.c	Wed Sep 08 22:16:25 2010 +0800
@@ -5,7 +5,7 @@
 }
 
 int
-main(int argc, const char * const argv[]) {
+main(int argc, const char *argv[]) {
     printf("test %d\n", value(12));
     return 0;
 }