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authorRichard Purdie <richard.purdie@linuxfoundation.org>2022-07-02 23:08:13 +0100
committerRichard Purdie <richard.purdie@linuxfoundation.org>2022-07-04 15:13:18 +0100
commitacd376324765e432f7c3895470ca46d2ce29287e (patch)
tree7e6eae3c15983f3ad358be5039578480d777efbb
parent2567edb7e0a8c5ca9a88d6940491bf33bfe0eff9 (diff)
downloadopenembedded-core-contrib-acd376324765e432f7c3895470ca46d2ce29287e.tar.gz
go: Filter build paths on staticly linked arches
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta/recipes-devtools/go/go-1.18.3.inc1
-rw-r--r--meta/recipes-devtools/go/go/filter-build-paths.patch48
2 files changed, 49 insertions, 0 deletions
diff --git a/meta/recipes-devtools/go/go-1.18.3.inc b/meta/recipes-devtools/go/go-1.18.3.inc
index 68062952ca..693b045e8f 100644
--- a/meta/recipes-devtools/go/go-1.18.3.inc
+++ b/meta/recipes-devtools/go/go-1.18.3.inc
@@ -13,5 +13,6 @@ SRC_URI += "\
file://0007-cmd-go-make-GOROOT-precious-by-default.patch \
file://0001-exec.go-do-not-write-linker-flags-into-buildids.patch \
file://0001-src-cmd-dist-buildgo.go-do-not-hardcode-host-compile.patch \
+ file://filter-build-paths.patch \
"
SRC_URI[main.sha256sum] = "0012386ddcbb5f3350e407c679923811dbd283fcdc421724931614a842ecbc2d"
diff --git a/meta/recipes-devtools/go/go/filter-build-paths.patch b/meta/recipes-devtools/go/go/filter-build-paths.patch
new file mode 100644
index 0000000000..caf727714e
--- /dev/null
+++ b/meta/recipes-devtools/go/go/filter-build-paths.patch
@@ -0,0 +1,48 @@
+Filter out build time paths from ldflags and other flags variables when they're
+embedded in the go binary so that builds are reproducible regardless of build
+location. This codepath is hit for statically linked go binaries such as those
+on mips/ppc.
+
+Upstream-Status: Pending
+Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
+
+Index: go/src/cmd/go/internal/load/pkg.go
+===================================================================
+--- go.orig/src/cmd/go/internal/load/pkg.go
++++ go/src/cmd/go/internal/load/pkg.go
+@@ -2225,6 +2225,17 @@ func (p *Package) collectDeps() {
+ // to their VCS information (vcsStatusError).
+ var vcsStatusCache par.Cache
+
++func filterCompilerFlags(flags string) string {
++ var newflags []string
++ for _, flag := range strings.Fields(flags) {
++ if strings.HasPrefix(flag, "--sysroot") || strings.HasPrefix(flag, "-fmacro-prefix-map") || strings.HasPrefix(flag, "-fdebug-prefix-map") {
++ continue
++ }
++ newflags = append(newflags, flag)
++ }
++ return strings.Join(newflags, " ")
++}
++
+ // setBuildInfo gathers build information, formats it as a string to be
+ // embedded in the binary, then sets p.Internal.BuildInfo to that string.
+ // setBuildInfo should only be called on a main package with no errors.
+@@ -2329,7 +2340,7 @@ func (p *Package) setBuildInfo(includeVC
+ appendSetting("-gcflags", BuildGcflags.String())
+ }
+ if BuildLdflags.present {
+- appendSetting("-ldflags", BuildLdflags.String())
++ appendSetting("-ldflags", filterCompilerFlags(BuildLdflags.String()))
+ }
+ if cfg.BuildMSan {
+ appendSetting("-msan", "true")
+@@ -2347,7 +2358,7 @@ func (p *Package) setBuildInfo(includeVC
+ appendSetting("CGO_ENABLED", cgo)
+ if cfg.BuildContext.CgoEnabled {
+ for _, name := range []string{"CGO_CFLAGS", "CGO_CPPFLAGS", "CGO_CXXFLAGS", "CGO_LDFLAGS"} {
+- appendSetting(name, cfg.Getenv(name))
++ appendSetting(name, filterCompilerFlags(cfg.Getenv(name)))
+ }
+ }
+ appendSetting("GOARCH", cfg.BuildContext.GOARCH)