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| author | Russ Cox <rsc@golang.org> | 2016-10-27 09:22:43 -0400 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2016-10-27 17:53:13 +0000 |
| commit | 5594074dcd09d0bb8c35998e20cddf728893ff00 (patch) | |
| tree | b9ecefbc4d8ed561f7ac35e9661c48ff5a99f5c9 /src/runtime/sys_linux_arm64.s | |
| parent | aff37662d1f70f2bf9e47b4f962e85521e7c18d1 (diff) | |
| download | go-5594074dcd09d0bb8c35998e20cddf728893ff00.tar.xz | |
runtime: use clock_gettime(CLOCK_REALTIME) for nanosecond-precision time.now on arm64, mips64x
Assembly copied from the clock_gettime(CLOCK_MONOTONIC)
call in runtime.nanotime in these files and then modified to use
CLOCK_REALTIME.
Also comment system call numbers in a few other files.
Fixes #11222.
Change-Id: Ie132086de7386f865908183aac2713f90fc73e0d
Reviewed-on: https://go-review.googlesource.com/32177
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Diffstat (limited to 'src/runtime/sys_linux_arm64.s')
| -rw-r--r-- | src/runtime/sys_linux_arm64.s | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/src/runtime/sys_linux_arm64.s b/src/runtime/sys_linux_arm64.s index 3bf2e97972..1b91b4499d 100644 --- a/src/runtime/sys_linux_arm64.s +++ b/src/runtime/sys_linux_arm64.s @@ -184,14 +184,12 @@ TEXT runtime·mincore(SB),NOSPLIT,$-8-28 // func now() (sec int64, nsec int32) TEXT time·now(SB),NOSPLIT,$24-12 - MOVD RSP, R0 - MOVD $0, R1 - MOVD $SYS_gettimeofday, R8 + MOVW $0, R0 // CLOCK_REALTIME + MOVD RSP, R1 + MOVD $SYS_clock_gettime, R8 SVC MOVD 0(RSP), R3 // sec - MOVD 8(RSP), R5 // usec - MOVD $1000, R4 - MUL R4, R5 + MOVD 8(RSP), R5 // nsec MOVD R3, sec+0(FP) MOVW R5, nsec+8(FP) RET |