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libwg-go: ensure local Go instance is patched

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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2018-05-09 17:29:17 +02:00
parent 7f6c861fd6
commit ebe3297c83
2 changed files with 105 additions and 0 deletions
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2
app/tools/libwg-go/Makefile
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@ -44,6 +44,7 @@ $(GOROOT)/bin/go:
rm -rf "$(GOROOT)"
mkdir -p "$(GOROOT)"
curl "$(GOBUILDTARBALL)" | tar -C "$(GOROOT)" --strip-components=1 -xzf - || { rm -rf "$(GOROOT)"; exit 1; }
patch -p1 -f -N -r- -d"$(GOROOT)" < goruntime-boottime-over-monotonic.diff || { rm -rf "$(GOROOT)"; exit 1; }
$(DESTDIR)/libwg-go.so: $(GOROOT)/bin/go
endif
@ -54,6 +55,7 @@ $(DESTDIR)/libwg-go.so: $(FILES) api-android.go jni.c
find . -type d -empty -delete
mkdir -p $(subst ../wireguard-go/,./,$(dir $(FILES)))
$(foreach FILE,$(FILES),ln -sfrt $(subst ../wireguard-go/,./,$(dir $(FILE))) $(FILE);)
patch -p1 -f -R -s --dry-run -d"$$(go env GOROOT)" < goruntime-boottime-over-monotonic.diff
go get -v -d
go build -v -o $(DESTDIR)/libwg-go.so -buildmode c-shared
go version > .gobuildversion

103
app/tools/libwg-go/goruntime-boottime-over-monotonic.diff Normal file
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@ -0,0 +1,103 @@
diff -ru b/src/runtime/sys_linux_386.s a/src/runtime/sys_linux_386.s
--- b/src/runtime/sys_linux_386.s 2018-04-30 22:26:39.000000000 +0200
+++ a/src/runtime/sys_linux_386.s 2018-05-09 17:09:42.319531743 +0200
@@ -287,13 +287,13 @@
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 -ru b/src/runtime/sys_linux_amd64.s a/src/runtime/sys_linux_amd64.s
--- b/src/runtime/sys_linux_amd64.s 2018-04-30 22:26:39.000000000 +0200
+++ a/src/runtime/sys_linux_amd64.s 2018-05-09 17:09:42.319531743 +0200
@@ -258,7 +258,7 @@
MOVQ runtime·__vdso_clock_gettime_sym(SB), AX
CMPQ AX, $0
JEQ fallback
- MOVL $1, DI // CLOCK_MONOTONIC
+ MOVL $7, DI // CLOCK_BOOTTIME
LEAQ 0(SP), SI
CALL AX
MOVQ 0(SP), AX // sec
diff -ru b/src/runtime/sys_linux_arm64.s a/src/runtime/sys_linux_arm64.s
--- b/src/runtime/sys_linux_arm64.s 2018-04-30 22:26:39.000000000 +0200
+++ a/src/runtime/sys_linux_arm64.s 2018-05-09 17:12:47.844591628 +0200
@@ -201,7 +201,7 @@
RET
TEXT runtime·nanotime(SB),NOSPLIT,$24-8
- MOVW $1, R0 // CLOCK_MONOTONIC
+ MOVW $7, R0 // CLOCK_BOOTTIME
MOVD RSP, R1
MOVD $SYS_clock_gettime, R8
SVC
diff -ru b/src/runtime/sys_linux_arm.s a/src/runtime/sys_linux_arm.s
--- b/src/runtime/sys_linux_arm.s 2018-04-30 22:26:39.000000000 +0200
+++ a/src/runtime/sys_linux_arm.s 2018-05-09 17:13:18.983281049 +0200
@@ -235,7 +235,7 @@
// int64 nanotime(void)
TEXT runtime·nanotime(SB),NOSPLIT,$32
- MOVW $1, R0 // CLOCK_MONOTONIC
+ MOVW $7, R0 // CLOCK_BOOTTIME
MOVW $8(R13), R1 // timespec
MOVW $SYS_clock_gettime, R7
SWI $0
diff -ru b/src/runtime/sys_linux_mips64x.s a/src/runtime/sys_linux_mips64x.s
--- b/src/runtime/sys_linux_mips64x.s 2018-04-30 22:26:39.000000000 +0200
+++ a/src/runtime/sys_linux_mips64x.s 2018-05-09 17:09:42.321531721 +0200
@@ -197,7 +197,7 @@
RET
TEXT runtime·nanotime(SB),NOSPLIT,$16
- MOVW $1, R4 // CLOCK_MONOTONIC
+ MOVW $7, R4 // CLOCK_BOOTTIME
MOVV $0(R29), R5
MOVV $SYS_clock_gettime, R2
SYSCALL
diff -ru b/src/runtime/sys_linux_mipsx.s a/src/runtime/sys_linux_mipsx.s
--- b/src/runtime/sys_linux_mipsx.s 2018-04-30 22:26:39.000000000 +0200
+++ a/src/runtime/sys_linux_mipsx.s 2018-05-09 17:09:42.321531721 +0200
@@ -202,7 +202,7 @@
RET
TEXT runtime·nanotime(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 -ru b/src/runtime/sys_linux_ppc64x.s a/src/runtime/sys_linux_ppc64x.s
--- b/src/runtime/sys_linux_ppc64x.s 2018-04-30 22:26:39.000000000 +0200
+++ a/src/runtime/sys_linux_ppc64x.s 2018-05-09 17:09:42.322531710 +0200
@@ -176,7 +176,7 @@
RET
TEXT runtime·nanotime(SB),NOSPLIT,$16
- MOVW $1, R3 // CLOCK_MONOTONIC
+ MOVW $7, R3 // CLOCK_BOOTTIME
MOVD $0(R1), R4
SYSCALL $SYS_clock_gettime
MOVD 0(R1), R3 // sec
diff -ru b/src/runtime/sys_linux_s390x.s a/src/runtime/sys_linux_s390x.s
--- b/src/runtime/sys_linux_s390x.s 2018-04-30 22:26:39.000000000 +0200
+++ a/src/runtime/sys_linux_s390x.s 2018-05-09 17:09:42.322531710 +0200
@@ -188,7 +188,7 @@
RET
TEXT runtime·nanotime(SB),NOSPLIT,$16
- MOVW $1, R2 // CLOCK_MONOTONIC
+ MOVW $7, R2 // CLOCK_BOOTTIME
MOVD $tp-16(SP), R3
MOVW $SYS_clock_gettime, R1
SYSCALL