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| author | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2013-05-03 15:00:31 -0500 |
|---|---|---|
| committer | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2013-05-03 15:04:54 -0500 |
| commit | 83e7640f6bf68708ecf0b09d83c670203167271e (patch) | |
| tree | fc3c69600db4b73d64e9c4855d5acae9ce99c727 /sysdeps/unix/sysv/linux/powerpc/bits | |
| parent | c31a5b1e8fecc794c4d0746a5a5af6db203005ea (diff) | |
| download | glibc-83e7640f6bf68708ecf0b09d83c670203167271e.tar.gz glibc-83e7640f6bf68708ecf0b09d83c670203167271e.tar.xz glibc-83e7640f6bf68708ecf0b09d83c670203167271e.zip | |
PowerPC: Add time vDSO support
PowerPC kernel now provides a vDSO implementation for time syscall (commit fcb41a2030abe0eb716ef0798035ef9562097f42). This patch changes time syscall wrapper to use the vDSO when available. It also changes the default non vDSO time on PowerPC to use sysdeps/posix/time.c (since gettimeofday is a vDSO call).
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/bits')
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/bits/libc-vdso.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/libc-vdso.h b/sysdeps/unix/sysv/linux/powerpc/bits/libc-vdso.h index 5f5fc1eb3a..8b195db1bf 100644 --- a/sysdeps/unix/sysv/linux/powerpc/bits/libc-vdso.h +++ b/sysdeps/unix/sysv/linux/powerpc/bits/libc-vdso.h @@ -32,14 +32,16 @@ extern void *__vdso_get_tbfreq; extern void *__vdso_getcpu; +extern void *__vdso_time; + /* This macro is needed for PPC64 to return a skeleton OPD entry of a vDSO symbol. This works because _dl_vdso_vsym always return the function address, and no vDSO symbols use the TOC or chain pointers from the OPD so we can allow them to be garbage. */ #if defined(__PPC64__) || defined(__powerpc64__) -#define VDSO_IFUNC_RET(value) &value +#define VDSO_IFUNC_RET(value) ((void *) &(value)) #else -#define VDSO_IFUNC_RET(value) value +#define VDSO_IFUNC_RET(value) ((void *) (value)) #endif #endif |