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prefix symbols with _ for 32-bit x86 Windows

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In a case that I believe can only be hit for Clang i686-*-windows-gnu (AKA MinGW), symbols in asm need to be prefixed with `_`.  Fixes #237
This commit is contained in:
jeremyd2019
2021-09-07 10:51:31 -07:00
committed by GitHub
parent a87145707f
commit 7a3ef59cdb
1 changed files with 10 additions and 4 deletions
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src/cdefs-compat.h
+10 -4
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@@ -59,15 +59,21 @@
#endif /* __warn_references */
#endif /* __STDC__ */
#elif defined(__clang__) /* CLANG */
#if defined(_WIN32) && defined (_X86_)
#define openlibm_symbol_prefix "_"
#else
#define openlibm_symbol_prefix ""
#endif
#ifdef __STDC__
#define openlibm_weak_reference(sym,alias) \
__asm__(".weak_reference " #alias); \
__asm__(".set " #alias ", " #sym)
__asm__(".weak_reference " openlibm_symbol_prefix #alias); \
__asm__(".set " openlibm_symbol_prefix #alias ", " openlibm_symbol_prefix #sym)
#else
#define openlibm_weak_reference(sym,alias) \
__asm__(".weak_reference alias");\
__asm__(".set alias, sym")
__asm__(".weak_reference openlibm_symbol_prefix/**/alias");\
__asm__(".set openlibm_symbol_prefix/**/alias, openlibm_symbol_prefix/**/sym")
#endif
#undef oepnlibm_symbol_prefix
#else /* !__ELF__ */
#ifdef __STDC__
#define openlibm_weak_reference(sym,alias) \