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* sysdeps/unix/sysv/linux/x86_64/libc-start.c

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(_libc_vdso_platform_setup): Mangle function pointers before storing
	them.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h (INLINE_VSYSCALL):
	Demangle vdso pointer before use.
	(INTERNAL_VSYSCALL): Likewise.

	* elf/cache.c (primes): Mark as const.
	Noted by Roland McGrath.
This commit is contained in:
Ulrich Drepper
2007-08-13 00:23:59 +00:00
parent 974a1f0fb2
commit 3c87d79db7
4 changed files with 27 additions and 7 deletions
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8
sysdeps/unix/sysv/linux/x86_64/libc-start.c
View File

@ -30,9 +30,13 @@ _libc_vdso_platform_setup (void)
{
PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
__vdso_gettimeofday = _dl_vdso_vsym ("gettimeofday", &linux26);
void *p = _dl_vdso_vsym ("gettimeofday", &linux26);
PTR_MANGLE (p);
__vdso_gettimeofday = p;
__vdso_clock_gettime = _dl_vdso_vsym ("clock_gettime", &linux26);
p = _dl_vdso_vsym ("clock_gettime", &linux26);
PTR_MANGLE (p);
__vdso_clock_gettime = p;
}
# define VDSO_SETUP _libc_vdso_platform_setup

12
sysdeps/unix/sysv/linux/x86_64/sysdep.h
View File

@ -264,9 +264,11 @@
INTERNAL_SYSCALL_DECL (sc_err); \
long int sc_ret; \
\
if (__vdso_##name != NULL) \
__typeof (__vdso_##name) vdsop = __vdso_##name; \
PTR_DEMANGLE (vdsop); \
if (vdsop != NULL) \
{ \
sc_ret = __vdso_##name (args); \
sc_ret = vdsop (args); \
if (!INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \
goto out; \
if (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err) != ENOSYS) \
@ -288,9 +290,11 @@
__label__ out; \
long int v_ret; \
\
if (__vdso_##name != NULL) \
__typeof (__vdso_##name) vdsop = __vdso_##name; \
PTR_DEMANGLE (vdsop); \
if (vdsop != NULL) \
{ \
v_ret = __vdso_##name (args); \
v_ret = vdsop (args); \
if (!INTERNAL_SYSCALL_ERROR_P (v_ret, err) \
|| INTERNAL_SYSCALL_ERRNO (v_ret, err) != ENOSYS) \
goto out; \