From e23faea6aec97b75f7a7567350538c1c0dfc1cee Mon Sep 17 00:00:00 2001 From: Stefan Liebler Date: Fri, 7 Oct 2016 09:56:47 +0200 Subject: i386, x86: Use libc_ifunc macro for time, gettimeofday. This patch uses the libc_ifunc_hidden macro to create already existing ifunc functions time and gettimeofday on intel. This way, the libc_hidden_def macro can be used instead of the libc_ifunc_hidden_def one which was only used here. Thus the macro is removed from libc-symbols.h. On i386, the __GI_* symbols do not target the ifunc symbol and thus the redirection construct has to be applied here. ChangeLog: * sysdeps/unix/sysv/linux/x86/gettimeofday.c (__gettimeofday): Use libc_ifunc_hidden macro. Use libc_hidden_def instead of libc_ifunc_hidden_def. * sysdeps/unix/sysv/linux/x86/time.c (time): Likewise. * sysdeps/unix/sysv/linux/i386/gettimeofday.c (__gettimeofday): Redirect ifunced function in header for using it as type of ifunc'ed function. Redefine libc_hidden_def to use fallback non ifunc'ed function for __GI_* symbol. * sysdeps/unix/sysv/linux/i386/time.c (time): Likewise. * include/libc-symbols.h (libc_ifunc_hidden_def, libc_ifunc_hidden_def1): Delete macro. --- include/libc-symbols.h | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'include') diff --git a/include/libc-symbols.h b/include/libc-symbols.h index 6ae309a1ba..1c91f2e6a3 100644 --- a/include/libc-symbols.h +++ b/include/libc-symbols.h @@ -869,21 +869,6 @@ for linking") #define libm_ifunc(name, expr) \ __ifunc (name, name, expr, void, libm_ifunc_init) -#ifdef HAVE_ASM_SET_DIRECTIVE -# define libc_ifunc_hidden_def1(local, name) \ - __asm__ (".globl " #local "\n\t" \ - ".hidden " #local "\n\t" \ - ".set " #local ", " #name); -#else -# define libc_ifunc_hidden_def1(local, name) \ - __asm__ (".globl " #local "\n\t" \ - ".hidden " #local "\n\t" \ - #local " = " #name); -#endif - -#define libc_ifunc_hidden_def(name) \ - libc_ifunc_hidden_def1 (__GI_##name, name) - /* Add the compiler optimization to inhibit loop transformation to library calls. This is used to avoid recursive calls in memset and memmove default implementations. */ -- cgit 1.4.1