diff options
| author | Dmitry Chestnykh <dm.chestnykh@gmail.com> | 2024-04-15 15:31:58 +0300 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2024-04-18 14:52:06 +0200 |
| commit | 3a36a3100af2ee1cca69345af83228757e8c55fe (patch) | |
| tree | 6ec6990dba241b65a925eb581ef59bcb3a74e843 /librt | |
| parent | 0694e42c9c9789bd87fba7e6639b21d2f28e09d4 (diff) | |
Fix vDSO support for all supported architectures.
- Cleanup dl-vdso.c code.
- Pass `void *` as first arg to `load_vdso()`, using 32-bit type
is completely wrong on 64bit architectures.
- Split libc code and vDSO-related code.
Move arch-specific implementations into separate files.
The performance improvement is for example 50-60 times on ARMv7
and about 4 times on x86_64.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
Diffstat (limited to 'librt')
| -rw-r--r-- | librt/clock_gettime.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/librt/clock_gettime.c b/librt/clock_gettime.c index eab9a3343..dd1f0c514 100644 --- a/librt/clock_gettime.c +++ b/librt/clock_gettime.c @@ -22,6 +22,10 @@ #include <sys/time.h> #include "kernel-posix-cpu-timers.h" +#ifdef __VDSO_SUPPORT__ +#include "ldso.h" +#endif + #if defined(__UCLIBC_USE_TIME64__) #include "internal/time64_helpers.h" #endif @@ -68,9 +72,8 @@ realtime_gettime (struct timespec *tp) return retval; } -/* Get current value of CLOCK and store it in TP. */ int -clock_gettime (clockid_t clock_id, struct timespec *tp) +__libc_clock_gettime (clockid_t clock_id, struct timespec *tp) { int retval = -1; #ifndef HANDLED_REALTIME @@ -101,3 +104,14 @@ clock_gettime (clockid_t clock_id, struct timespec *tp) return retval; } + +/* Get current value of CLOCK and store it in TP. */ +int +clock_gettime (clockid_t clock_id, struct timespec *tp) +{ +#if defined(__VDSO_SUPPORT__) && defined(ARCH_VDSO_CLOCK_GETTIME) + return ARCH_VDSO_CLOCK_GETTIME(clock_id, tp); +#else + return __libc_clock_gettime(clock_id, tp); +#endif +} |