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a1c12fdf3f
This macro definition enforces two arguments even with newer compilers
that accept the single-argument form, too.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
(cherry picked from commit c9fef4b7d1)
46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
#ifndef _SYS_CDEFS_H
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/* This is outside of _ISOMAC to enforce that _Static_assert always
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uses the two-argument form. This can be removed once the minimum
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GCC version used to compile glibc is GCC 9.1. */
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#ifndef __cplusplus
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# define _Static_assert(expr, diagnostic) _Static_assert (expr, diagnostic)
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#endif
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#include <misc/sys/cdefs.h>
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#ifndef _ISOMAC
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/* The compiler will optimize based on the knowledge the parameter is
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not NULL. This will omit tests. A robust implementation cannot allow
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this so when compiling glibc itself we ignore this attribute. */
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# undef __nonnull
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# define __nonnull(params)
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extern void __chk_fail (void) __attribute__ ((__noreturn__));
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libc_hidden_proto (__chk_fail)
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rtld_hidden_proto (__chk_fail)
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/* If we are using redirects internally to support long double,
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we need to tweak some macros to ensure the PLT bypass tricks
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continue to work in libc. */
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#if __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1 && IS_IN (libc) && defined SHARED
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# undef __LDBL_REDIR_DECL
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# define __LDBL_REDIR_DECL(func) \
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extern __typeof(func) func __asm (__ASMNAME ("__GI____ieee128_" #func));
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# undef libc_hidden_ldbl_proto
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# define libc_hidden_ldbl_proto(func, attrs...) \
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extern __typeof(func) ___ieee128_ ## func; \
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libc_hidden_proto (___ieee128_ ## func, ##attrs);
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# undef __LDBL_REDIR2_DECL
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# define __LDBL_REDIR2_DECL(func) \
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extern __typeof(__ ## func) __ ## func __asm (__ASMNAME ("__GI____ieee128___" #func));
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#endif
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#endif /* !defined _ISOMAC */
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#endif
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