diff options
Diffstat (limited to 'tunnel/tools/libwg-go/goruntime-boottime-over-monotonic.diff')
| -rw-r--r-- | tunnel/tools/libwg-go/goruntime-boottime-over-monotonic.diff | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/tunnel/tools/libwg-go/goruntime-boottime-over-monotonic.diff b/tunnel/tools/libwg-go/goruntime-boottime-over-monotonic.diff new file mode 100644 index 00000000..5d78242b --- /dev/null +++ b/tunnel/tools/libwg-go/goruntime-boottime-over-monotonic.diff @@ -0,0 +1,171 @@ +From 61f3ae8298d1c503cbc31539e0f3a73446c7db9d Mon Sep 17 00:00:00 2001 +From: "Jason A. Donenfeld" <Jason@zx2c4.com> +Date: Tue, 21 Mar 2023 15:33:56 +0100 +Subject: [PATCH] [release-branch.go1.20] runtime: use CLOCK_BOOTTIME in + nanotime on Linux + +This makes timers account for having expired while a computer was +asleep, which is quite common on mobile devices. Note that BOOTTIME is +identical to MONOTONIC, except that it takes into account time spent +in suspend. In Linux 4.17, the kernel will actually make MONOTONIC act +like BOOTTIME anyway, so this switch will additionally unify the +timer behavior across kernels. + +BOOTTIME was introduced into Linux 2.6.39-rc1 with 70a08cca1227d in +2011. + +Fixes #24595 + +Change-Id: I7b2a6ca0c5bc5fce57ec0eeafe7b68270b429321 +--- + src/runtime/sys_linux_386.s | 4 ++-- + src/runtime/sys_linux_amd64.s | 2 +- + src/runtime/sys_linux_arm.s | 4 ++-- + src/runtime/sys_linux_arm64.s | 4 ++-- + src/runtime/sys_linux_mips64x.s | 4 ++-- + src/runtime/sys_linux_mipsx.s | 2 +- + src/runtime/sys_linux_ppc64x.s | 2 +- + src/runtime/sys_linux_s390x.s | 2 +- + 8 files changed, 12 insertions(+), 12 deletions(-) + +diff --git a/src/runtime/sys_linux_386.s b/src/runtime/sys_linux_386.s +index 12a294153d..17e3524b40 100644 +--- a/src/runtime/sys_linux_386.s ++++ b/src/runtime/sys_linux_386.s +@@ -352,13 +352,13 @@ noswitch: + + LEAL 8(SP), BX // &ts (struct timespec) + MOVL BX, 4(SP) +- MOVL $1, 0(SP) // CLOCK_MONOTONIC ++ MOVL $7, 0(SP) // CLOCK_BOOTTIME + CALL AX + JMP finish + + fallback: + MOVL $SYS_clock_gettime, AX +- MOVL $1, BX // CLOCK_MONOTONIC ++ MOVL $7, BX // CLOCK_BOOTTIME + LEAL 8(SP), CX + INVOKE_SYSCALL + +diff --git a/src/runtime/sys_linux_amd64.s b/src/runtime/sys_linux_amd64.s +index c7a89ba536..01f0a6a26e 100644 +--- a/src/runtime/sys_linux_amd64.s ++++ b/src/runtime/sys_linux_amd64.s +@@ -255,7 +255,7 @@ noswitch: + SUBQ $16, SP // Space for results + ANDQ $~15, SP // Align for C code + +- MOVL $1, DI // CLOCK_MONOTONIC ++ MOVL $7, DI // CLOCK_BOOTTIME + LEAQ 0(SP), SI + MOVQ runtime·vdsoClockgettimeSym(SB), AX + CMPQ AX, $0 +diff --git a/src/runtime/sys_linux_arm.s b/src/runtime/sys_linux_arm.s +index 7b8c4f0e04..9798a1334e 100644 +--- a/src/runtime/sys_linux_arm.s ++++ b/src/runtime/sys_linux_arm.s +@@ -11,7 +11,7 @@ + #include "textflag.h" + + #define CLOCK_REALTIME 0 +-#define CLOCK_MONOTONIC 1 ++#define CLOCK_BOOTTIME 7 + + // for EABI, as we don't support OABI + #define SYS_BASE 0x0 +@@ -374,7 +374,7 @@ finish: + + // func nanotime1() int64 + TEXT runtime·nanotime1(SB),NOSPLIT,$12-8 +- MOVW $CLOCK_MONOTONIC, R0 ++ MOVW $CLOCK_BOOTTIME, R0 + MOVW $spec-12(SP), R1 // timespec + + MOVW runtime·vdsoClockgettimeSym(SB), R4 +diff --git a/src/runtime/sys_linux_arm64.s b/src/runtime/sys_linux_arm64.s +index 38ff6ac330..6b819c5441 100644 +--- a/src/runtime/sys_linux_arm64.s ++++ b/src/runtime/sys_linux_arm64.s +@@ -14,7 +14,7 @@ + #define AT_FDCWD -100 + + #define CLOCK_REALTIME 0 +-#define CLOCK_MONOTONIC 1 ++#define CLOCK_BOOTTIME 7 + + #define SYS_exit 93 + #define SYS_read 63 +@@ -338,7 +338,7 @@ noswitch: + BIC $15, R1 + MOVD R1, RSP + +- MOVW $CLOCK_MONOTONIC, R0 ++ MOVW $CLOCK_BOOTTIME, R0 + MOVD runtime·vdsoClockgettimeSym(SB), R2 + CBZ R2, fallback + +diff --git a/src/runtime/sys_linux_mips64x.s b/src/runtime/sys_linux_mips64x.s +index 47f2da524d..a8b387f193 100644 +--- a/src/runtime/sys_linux_mips64x.s ++++ b/src/runtime/sys_linux_mips64x.s +@@ -326,7 +326,7 @@ noswitch: + AND $~15, R1 // Align for C code + MOVV R1, R29 + +- MOVW $1, R4 // CLOCK_MONOTONIC ++ MOVW $7, R4 // CLOCK_BOOTTIME + MOVV $0(R29), R5 + + MOVV runtime·vdsoClockgettimeSym(SB), R25 +@@ -336,7 +336,7 @@ noswitch: + // see walltime for detail + BEQ R2, R0, finish + MOVV R0, runtime·vdsoClockgettimeSym(SB) +- MOVW $1, R4 // CLOCK_MONOTONIC ++ MOVW $7, R4 // CLOCK_BOOTTIME + MOVV $0(R29), R5 + JMP fallback + +diff --git a/src/runtime/sys_linux_mipsx.s b/src/runtime/sys_linux_mipsx.s +index 5e6b6c1504..7f5fd2a80e 100644 +--- a/src/runtime/sys_linux_mipsx.s ++++ b/src/runtime/sys_linux_mipsx.s +@@ -243,7 +243,7 @@ TEXT runtime·walltime(SB),NOSPLIT,$8-12 + RET + + TEXT runtime·nanotime1(SB),NOSPLIT,$8-8 +- MOVW $1, R4 // CLOCK_MONOTONIC ++ MOVW $7, R4 // CLOCK_BOOTTIME + MOVW $4(R29), R5 + MOVW $SYS_clock_gettime, R2 + SYSCALL +diff --git a/src/runtime/sys_linux_ppc64x.s b/src/runtime/sys_linux_ppc64x.s +index d0427a4807..05ee9fede9 100644 +--- a/src/runtime/sys_linux_ppc64x.s ++++ b/src/runtime/sys_linux_ppc64x.s +@@ -298,7 +298,7 @@ fallback: + JMP return + + TEXT runtime·nanotime1(SB),NOSPLIT,$16-8 +- MOVD $1, R3 // CLOCK_MONOTONIC ++ MOVD $7, R3 // CLOCK_BOOTTIME + + MOVD R1, R15 // R15 is unchanged by C code + MOVD g_m(g), R21 // R21 = m +diff --git a/src/runtime/sys_linux_s390x.s b/src/runtime/sys_linux_s390x.s +index 1448670b91..7d2ee3231c 100644 +--- a/src/runtime/sys_linux_s390x.s ++++ b/src/runtime/sys_linux_s390x.s +@@ -296,7 +296,7 @@ fallback: + RET + + TEXT runtime·nanotime1(SB),NOSPLIT,$32-8 +- MOVW $1, R2 // CLOCK_MONOTONIC ++ MOVW $7, R2 // CLOCK_BOOTTIME + + MOVD R15, R7 // Backup stack pointer + +-- +2.17.1 + |