b862c42198
* lib/_cygwin_crt0_common.cc: Perform pseudo-relocs during initialization of cygwin binary (.exe or .dll).
47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
/* pseudo-reloc.c
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Written by Egor Duda <deo@logos-m.ru>
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THIS SOFTWARE IS NOT COPYRIGHTED
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This source code is offered for use in the public domain. You may
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use, modify or distribute it freely.
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This code is distributed in the hope that it will be useful but
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WITHOUT ANY WARRANTY. ALL WARRENTIES, EXPRESS OR IMPLIED ARE HEREBY
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DISCLAMED. This includes but is not limited to warrenties of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#include <windows.h>
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extern char __RUNTIME_PSEUDO_RELOC_LIST__;
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extern char __RUNTIME_PSEUDO_RELOC_LIST_END__;
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extern char _image_base__;
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typedef struct
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{
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DWORD addend;
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DWORD target;
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}
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runtime_pseudo_reloc;
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void
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do_pseudo_reloc (void* start, void* end, void* base)
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{
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DWORD reloc_target;
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runtime_pseudo_reloc* r;
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for (r = (runtime_pseudo_reloc*) start; r < (runtime_pseudo_reloc*) end; r++)
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{
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reloc_target = (DWORD) base + r->target;
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*((DWORD*) reloc_target) += r->addend;
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}
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}
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void
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_pei386_runtime_relocator ()
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{
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do_pseudo_reloc (&__RUNTIME_PSEUDO_RELOC_LIST__,
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&__RUNTIME_PSEUDO_RELOC_LIST_END__,
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&_image_base__);
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}
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