diff options
Diffstat (limited to 'include/sys/cdefs.h')
| -rw-r--r-- | include/sys/cdefs.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h index 524fe57a25..9f44ac5a0a 100644 --- a/include/sys/cdefs.h +++ b/include/sys/cdefs.h @@ -13,6 +13,26 @@ extern void __chk_fail (void) __attribute__ ((__noreturn__)); libc_hidden_proto (__chk_fail) rtld_hidden_proto (__chk_fail) +/* If we are using redirects internally to support long double, + we need to tweak some macros to ensure the PLT bypass tricks + continue to work in libc. */ +#if __LONG_DOUBLE_USES_FLOAT128 == 1 && IS_IN (libc) && defined SHARED + +# undef __LDBL_REDIR_DECL +# define __LDBL_REDIR_DECL(func) \ + extern __typeof(func) func __asm (__ASMNAME ("__GI____ieee128_" #func)); + +# undef libc_hidden_ldbl_proto +# define libc_hidden_ldbl_proto(func, attrs...) \ + extern __typeof(func) ___ieee128_ ## func; \ + libc_hidden_proto (___ieee128_ ## func, ##attrs); + +# undef __LDBL_REDIR2_DECL +# define __LDBL_REDIR2_DECL(func) \ + extern __typeof(__ ## func) __ ## func __asm (__ASMNAME ("__GI____ieee128___" #func)); + #endif +#endif /* !defined _ISOMAC */ + #endif |