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authorStefan Liebler <stli@linux.vnet.ibm.com>2016-10-07 09:56:47 +0200
committerStefan Liebler <stli@linux.vnet.ibm.com>2016-10-07 10:12:42 +0200
commite23faea6aec97b75f7a7567350538c1c0dfc1cee (patch)
tree2ba0ed050ee0966c85c7bee2f2a18bdf3e3dd139 /include/libc-symbols.h
parent18d6c45e12127ea88a704c0915de2ba13d3af998 (diff)
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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.
Diffstat (limited to 'include/libc-symbols.h')
-rw-r--r--include/libc-symbols.h15
1 files changed, 0 insertions, 15 deletions
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.  */