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comparison python/ppci/linker.py @ 345:b4882ff0ed06

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Added more arm isa tests
author Windel Bouwman
date Sun, 02 Mar 2014 17:12:08 +0100
parents d1ecc493384e
children 442fb043d149
comparison
equal deleted inserted replaced
344:1378c4b027a0 345:b4882ff0ed06
74 section.data[reloc.offset + 2] = imm11 & 0xFF 74 section.data[reloc.offset + 2] = imm11 & 0xFF
75 section.data[reloc.offset + 3] |= (imm11 >> 8) & 0x7 75 section.data[reloc.offset + 3] |= (imm11 >> 8) & 0x7
76 section.data[reloc.offset] |= imm6 76 section.data[reloc.offset] |= imm6
77 section.data[reloc.offset + 1] |= (s << 2) 77 section.data[reloc.offset + 1] |= (s << 2)
78 78
79 # ARM reloc!!
80 # TODO: move to target classes???
81 @reloc('b_imm24')
82 def apply_b_imm24(reloc, sym, section, reloc_value):
83 assert sym.value % 4 == 0
84 assert reloc_value % 4 == 0
85 offset = (sym.value - (reloc_value + 8))
86 rel24 = wrap_negative(offset >> 2, 24)
87 section.data[reloc.offset+2] = (rel24 >> 16) & 0xFF
88 section.data[reloc.offset+1] = (rel24 >> 8) & 0xFF
89 section.data[reloc.offset+0] = rel24 & 0xFF
90
79 91
80 class Linker: 92 class Linker:
81 """ Merges the sections of several object files and 93 """ Merges the sections of several object files and
82 performs relocation """ 94 performs relocation """
83 def link(self, objs, layout={}): 95 def link(self, objs, layout={}):