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https://git.planet-casio.com/Lephenixnoir/OpenLibm.git
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9a48c87386
<sys/cdefs.h> is not a standard header. Instead, we'd better pull in a common header like <stdio.h>. It is very likely that such a header already provides the necessary bits.
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
#ifndef _CDEFS_COMPAT_H_
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#define _CDEFS_COMPAT_H_
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/*
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* We cannot be certain that this operating system has <sys/cdefs.h>.
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* Instead, include a header file that is likely to pull in this header.
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*/
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#include <stdio.h>
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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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#ifdef __GNUC__
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#ifndef __strong_reference
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#ifdef __APPLE__
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#define __strong_reference(sym,aliassym) __weak_reference(sym,aliassym)
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#else
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#define __strong_reference(sym,aliassym) \
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DLLEXPORT extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)));
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#endif /* __APPLE__ */
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#endif /* __strong_reference */
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#ifndef __weak_reference
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#ifdef __ELF__
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#ifdef __STDC__
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#define __weak_reference(sym,alias) \
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__asm__(".weak " #alias); \
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__asm__(".equ " #alias ", " #sym)
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#define __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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#else
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#define __weak_reference(sym,alias) \
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__asm__(".weak alias"); \
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__asm__(".equ alias, sym")
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#define __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 /* __STDC__ */
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#elif defined(__clang__) /* CLANG */
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#ifdef __STDC__
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#define __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 __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 __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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#define __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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#else
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#define __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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#define __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 /* __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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