diff options
| author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2016-10-07 09:56:47 +0200 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.vnet.ibm.com> | 2016-10-07 10:12:42 +0200 |
| commit | e23faea6aec97b75f7a7567350538c1c0dfc1cee (patch) | |
| tree | 2ba0ed050ee0966c85c7bee2f2a18bdf3e3dd139 /include/libc-symbols.h | |
| parent | 18d6c45e12127ea88a704c0915de2ba13d3af998 (diff) | |
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.h | 15 |
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. */ |