mirror of
https://github.com/YannMagnin/vxOpenLibm.git
synced 2024-06-05 18:31:27 +02:00
4f559d4c14
__strong_alias is an ELF feature that is not available on Darwin/MachO. We have openlibm_strong_reference to paper over these differences, but we weren't using it consistently. In particular, we were still using it to define long double -> double aliases on platforms where these are the same type (e.g. aarch64). This didn't used to matter, because the only such platform we supported was always Linux and thus ELF. This patch fixes these instances thus fixing the build on Apple Silicon.
101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
#ifndef _CDEFS_COMPAT_H_
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#define _CDEFS_COMPAT_H_
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#if !defined(__BEGIN_DECLS)
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#if defined(__cplusplus)
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#define __BEGIN_DECLS extern "C" {
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#define __END_DECLS }
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#else
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#define __BEGIN_DECLS
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#define __END_DECLS
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#endif
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#endif /* !defined(__BEGIN_DECLS) */
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#ifdef __GNUC__
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#if defined(__strong_alias) && defined(__NetBSD__)
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#define openlibm_strong_reference(sym,alias) __strong_alias(alias,sym)
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#elif defined(__strong_reference)
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#define openlibm_strong_reference(sym,alias) __strong_reference(sym,alias)
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#else
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#ifdef __APPLE__
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#define openlibm_strong_reference(sym,aliassym) openlibm_weak_reference(sym,aliassym)
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#else
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#define openlibm_strong_reference(sym,aliassym) \
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OLM_DLLEXPORT extern __typeof (aliassym) aliassym __attribute__ ((__alias__ (#sym)));
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#endif /* __APPLE__ */
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#endif /* __strong_reference */
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#ifdef __wasm__
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#define openlibm_weak_reference(sym,alias) openlibm_strong_reference(sym,alias)
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#elif defined(__weak_alias) && defined(__NetBSD__)
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#define openlibm_weak_reference(sym,alias) __weak_alias(alias,sym)
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#elif defined(__weak_reference)
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#define openlibm_weak_reference(sym,alias) __weak_reference(sym,alias)
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#else
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#ifdef __ELF__
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#ifdef __STDC__
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#define openlibm_weak_reference(sym,alias) \
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__asm__(".weak " #alias); \
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__asm__(".equ " #alias ", " #sym)
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#ifdef __warn_references
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#define openlibm_warn_references(sym,msg) __warn_references(sym,msg)
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#else
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#define openlibm_warn_references(sym,msg) \
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__asm__(".section .gnu.warning." #sym); \
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__asm__(".asciz \"" msg "\""); \
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__asm__(".previous")
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#endif /* __warn_references */
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#else
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#define openlibm_weak_reference(sym,alias) \
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__asm__(".weak alias"); \
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__asm__(".equ alias, sym")
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#ifdef __warn_references
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#define openlibm_warn_references(sym,msg) __warn_references(sym,msg)
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#else
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#define openlibm_warn_references(sym,msg) \
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__asm__(".section .gnu.warning.sym"); \
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__asm__(".asciz \"msg\""); \
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__asm__(".previous")
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#endif /* __warn_references */
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#endif /* __STDC__ */
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#elif defined(__clang__) /* CLANG */
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#ifdef __STDC__
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#define openlibm_weak_reference(sym,alias) \
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__asm__(".weak_reference " #alias); \
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__asm__(".set " #alias ", " #sym)
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#else
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#define openlibm_weak_reference(sym,alias) \
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__asm__(".weak_reference alias");\
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__asm__(".set alias, sym")
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#endif
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#else /* !__ELF__ */
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#ifdef __STDC__
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#define openlibm_weak_reference(sym,alias) \
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__asm__(".stabs \"_" #alias "\",11,0,0,0"); \
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__asm__(".stabs \"_" #sym "\",1,0,0,0")
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#ifdef __warn_references
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#define openlibm_warn_references(sym,msg) __warn_references(sym,msg)
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#else
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#define openlibm_warn_references(sym,msg) \
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__asm__(".stabs \"" msg "\",30,0,0,0"); \
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__asm__(".stabs \"_" #sym "\",1,0,0,0")
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#endif /* __warn_references */
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#else
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#define openlibm_weak_reference(sym,alias) \
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__asm__(".stabs \"_/**/alias\",11,0,0,0"); \
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__asm__(".stabs \"_/**/sym\",1,0,0,0")
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#ifdef __warn_references
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#define openlibm_warn_references(sym,msg) __warn_references(sym,msg)
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#else
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#define openlibm_warn_references(sym,msg) \
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__asm__(".stabs msg,30,0,0,0"); \
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__asm__(".stabs \"_/**/sym\",1,0,0,0")
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#endif /* __warn_references */
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#endif /* __STDC__ */
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#endif /* __ELF__ */
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#endif /* __weak_reference */
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#endif /* __GNUC__ */
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#endif /* _CDEFS_COMPAT_H_ */
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