|
 |
00db10 |
#
|
|
|
00db10 |
# commit d98720e07f67fbeec00f9e1347840404240d3c48
|
|
|
00db10 |
# Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
|
|
|
00db10 |
# Date: Mon Jan 20 12:29:51 2014 -0600
|
|
|
00db10 |
#
|
|
|
00db10 |
# PowerPC: Fix gettimeofday ifunc selection
|
|
|
00db10 |
#
|
|
|
00db10 |
# The IFUNC selector for gettimeofday runs before _libc_vdso_platform_setup where
|
|
|
00db10 |
# __vdso_gettimeofday is set. The selector then sets __gettimeofday (the internal
|
|
|
00db10 |
# version used within GLIBC) to use the system call version instead of the vDSO one.
|
|
|
00db10 |
# This patch changes the check if vDSO is available to get its value directly
|
|
|
00db10 |
# instead of rely on __vdso_gettimeofday.
|
|
|
00db10 |
#
|
|
|
00db10 |
# This patch changes it by getting the vDSO value directly.
|
|
|
00db10 |
#
|
|
|
00db10 |
# It fixes BZ#16431.
|
|
|
00db10 |
#
|
|
|
00db10 |
diff -urN glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/gettimeofday.c glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/gettimeofday.c
|
|
|
00db10 |
--- glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/gettimeofday.c 2015-01-15 16:07:59.167420456 -0500
|
|
|
00db10 |
+++ glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/gettimeofday.c 2015-01-15 16:07:41.408969001 -0500
|
|
|
00db10 |
@@ -34,9 +34,12 @@
|
|
|
00db10 |
void *
|
|
|
00db10 |
gettimeofday_ifunc (void)
|
|
|
00db10 |
{
|
|
|
00db10 |
+ PREPARE_VERSION (linux2615, "LINUX_2.6.15", 123718565);
|
|
|
00db10 |
+
|
|
|
00db10 |
/* If the vDSO is not available we fall back syscall. */
|
|
|
00db10 |
- return (__vdso_gettimeofday ? VDSO_IFUNC_RET (__vdso_gettimeofday)
|
|
|
00db10 |
- : __gettimeofday_syscall);
|
|
|
00db10 |
+ void *vdso_gettimeofday = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2615);
|
|
|
00db10 |
+ return (vdso_gettimeofday ? VDSO_IFUNC_RET (vdso_gettimeofday)
|
|
|
00db10 |
+ : (void*)__gettimeofday_syscall);
|
|
|
00db10 |
}
|
|
|
00db10 |
asm (".type __gettimeofday, %gnu_indirect_function");
|
|
|
00db10 |
|
|
|
00db10 |
diff -urN glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/time.c glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/time.c
|
|
|
00db10 |
--- glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/time.c 2015-01-15 16:07:59.168420425 -0500
|
|
|
00db10 |
+++ glibc-2.17-c758a686/sysdeps/unix/sysv/linux/powerpc/time.c 2015-01-15 16:07:41.408969001 -0500
|
|
|
00db10 |
@@ -45,9 +45,12 @@
|
|
|
00db10 |
void *
|
|
|
00db10 |
time_ifunc (void)
|
|
|
00db10 |
{
|
|
|
00db10 |
+ PREPARE_VERSION (linux2615, "LINUX_2.6.15", 123718565);
|
|
|
00db10 |
+
|
|
|
00db10 |
/* If the vDSO is not available we fall back to the syscall. */
|
|
|
00db10 |
- return (__vdso_time ? VDSO_IFUNC_RET (__vdso_time)
|
|
|
00db10 |
- : time_syscall);
|
|
|
00db10 |
+ void *vdso_time = _dl_vdso_vsym ("__kernel_time", &linux2615);
|
|
|
00db10 |
+ return (vdso_time ? VDSO_IFUNC_RET (vdso_time)
|
|
|
00db10 |
+ : (void*)time_syscall);
|
|
|
00db10 |
}
|
|
|
00db10 |
asm (".type time, %gnu_indirect_function");
|
|
|
00db10 |
|