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Use libc_ifunc macro for vfork in libpthread.

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This patch uses the libc_ifunc macro to create already existing ifunc functions
vfork_ifunc and __vfork_ifunc if HAVE_IFUNC is defined.

ChangeLog:

	* nptl/pt-vfork.c (DEFINE_VFORK): Use libc_ifunc macro.
This commit is contained in:
Stefan Liebler 2016-10-07 09:56:47 +02:00
parent 75685c4d98
commit 051f8be7c9
2 changed files with 9 additions and 17 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2016-10-07 Stefan Liebler <stli@linux.vnet.ibm.com>
* nptl/pt-vfork.c (DEFINE_VFORK): Use libc_ifunc macro.
2016-10-07 Stefan Liebler <stli@linux.vnet.ibm.com>
* nptl/pt-system.c (system_ifunc): Use libc_ifunc macro.

22
nptl/pt-vfork.c
View File

@ -46,32 +46,20 @@
extern __typeof (vfork) __libc_vfork; /* Defined in libc. */
static __typeof (vfork) *
__attribute__ ((used))
vfork_resolve (void)
{
return &__libc_vfork;
}
# undef INIT_ARCH
# define INIT_ARCH()
# define DEFINE_VFORK(name) libc_ifunc (name, &__libc_vfork)
# ifdef HAVE_ASM_SET_DIRECTIVE
# define DEFINE_VFORK(name) \
asm (".set " #name ", vfork_resolve\n" \
".globl " #name "\n" \
".type " #name ", %gnu_indirect_function");
# else
# define DEFINE_VFORK(name) \
asm (#name " = vfork_resolve\n" \
".globl " #name "\n" \
".type " #name ", %gnu_indirect_function");
# endif
#endif
#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_20)
extern __typeof(vfork) vfork_ifunc;
DEFINE_VFORK (vfork_ifunc)
compat_symbol (libpthread, vfork_ifunc, vfork, GLIBC_2_0);
#endif
#if SHLIB_COMPAT (libpthread, GLIBC_2_1_2, GLIBC_2_20)
extern __typeof(vfork) __vfork_ifunc;
DEFINE_VFORK (__vfork_ifunc)
compat_symbol (libpthread, __vfork_ifunc, __vfork, GLIBC_2_1_2);
#endif