runtime: use monotonic clock for timers on linux/arm

Update #6007

LGTM=dvyukov
R=golang-codereviews, dvyukov
CC=golang-codereviews
https://golang.org/cl/67730048

diff --git a/src/pkg/runtime/sys_linux_arm.s b/src/pkg/runtime/sys_linux_arm.s
index 42aef56a76d375d74bf73c8b5a1047b76d850c09..c537a872234cfff9e0e5e56c166afcd41e4576d1 100644 (file)
--- a/src/pkg/runtime/sys_linux_arm.s
+++ b/src/pkg/runtime/sys_linux_arm.s
@@ -175,7 +175,7 @@ TEXT time·now(SB), NOSPLIT, $32
 // int64 nanotime(void) so really
 // void nanotime(int64 *nsec)
 TEXT runtime·nanotime(SB),NOSPLIT,$32
-       MOVW    $0, R0  // CLOCK_REALTIME
+       MOVW    $1, R0  // CLOCK_MONOTONIC
        MOVW    $8(R13), R1  // timespec
        MOVW    $SYS_clock_gettime, R7
        SWI     $0