[04/16] linux: Update x86 vDSO symbols
Commit Message
Add the missing time and clock_getres vDSO symbol names on x86.
For time, the iFUNC already uses expected name so it affects only
the static build.
The clock_getres is a new implementation added on Linux 5.3
(f66501dc53e72).
Checked on x86-linux-gnu and i686-linux-gnu.
---
sysdeps/unix/sysv/linux/i386/sysdep.h | 2 ++
sysdeps/unix/sysv/linux/x86/time.c | 4 ----
sysdeps/unix/sysv/linux/x86_64/sysdep.h | 2 ++
3 files changed, 4 insertions(+), 4 deletions(-)
Comments
On 18/12/19 3:17 am, Adhemerval Zanella wrote:
> Add the missing time and clock_getres vDSO symbol names on x86.
> For time, the iFUNC already uses expected name so it affects only
> the static build.
>
> The clock_getres is a new implementation added on Linux 5.3
> (f66501dc53e72).
>
> Checked on x86-linux-gnu and i686-linux-gnu.
> ---
> sysdeps/unix/sysv/linux/i386/sysdep.h | 2 ++
> sysdeps/unix/sysv/linux/x86/time.c | 4 ----
> sysdeps/unix/sysv/linux/x86_64/sysdep.h | 2 ++
> 3 files changed, 4 insertions(+), 4 deletions(-)
>
OK.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
@@ -315,6 +315,8 @@ struct libc_do_syscall_args
/* List of system calls which are supported as vsyscalls. */
# define HAVE_CLOCK_GETTIME_VSYSCALL "__vdso_clock_gettime"
# define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_gettimeofday"
+# define HAVE_TIME_VSYSCALL "__vdso_time"
+# define HAVE_CLOCK_GETRES_VSYSCALL "__vdso_clock_getres"
/* Define a macro which expands inline into the wrapper code for a system
call. This use is for internal calls that do not need to handle errors
@@ -23,11 +23,7 @@
static time_t
time_vsyscall (time_t *t)
{
-#ifdef HAVE_TIME_VSYSCALL
return INLINE_VSYSCALL (time, 1, t);
-#else
- return INLINE_SYSCALL_CALL (time, t);
-#endif
}
#ifdef SHARED
@@ -376,7 +376,9 @@
/* List of system calls which are supported as vsyscalls. */
# define HAVE_CLOCK_GETTIME_VSYSCALL "__vdso_clock_gettime"
# define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_gettimeofday"
+# define HAVE_TIME_VSYSCALL "__vdso_time"
# define HAVE_GETCPU_VSYSCALL "__vdso_getcpu"
+# define HAVE_CLOCK_GETRES_VSYSCALL "__vdso_clock_getres"
# define SINGLE_THREAD_BY_GLOBAL 1