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-rw-r--r--meta/recipes-devtools/go/go/0009-go-Filter-build-paths-on-staticly-linked-arches.patch61
1 files changed, 61 insertions, 0 deletions
diff --git a/meta/recipes-devtools/go/go/0009-go-Filter-build-paths-on-staticly-linked-arches.patch b/meta/recipes-devtools/go/go/0009-go-Filter-build-paths-on-staticly-linked-arches.patch
new file mode 100644
index 0000000000..cc45496e9c
--- /dev/null
+++ b/meta/recipes-devtools/go/go/0009-go-Filter-build-paths-on-staticly-linked-arches.patch
@@ -0,0 +1,61 @@
+From 6c2438f187ca912c54a71b4ac65ab98999a019d2 Mon Sep 17 00:00:00 2001
+From: Richard Purdie <richard.purdie@linuxfoundation.org>
+Date: Sat, 2 Jul 2022 23:08:13 +0100
+Subject: [PATCH 9/9] go: Filter build paths on staticly linked arches
+
+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: Submitted [https://github.com/golang/go/pull/56410]
+
+Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
+Signed-off-by: Jose Quaresma <jose.quaresma@foundries.io>
+---
+ src/cmd/go/internal/load/pkg.go | 15 +++++++++++++--
+ 1 file changed, 13 insertions(+), 2 deletions(-)
+
+diff --git a/src/cmd/go/internal/load/pkg.go b/src/cmd/go/internal/load/pkg.go
+index 1549800afb..f41fb2c4ef 100644
+--- a/src/cmd/go/internal/load/pkg.go
++++ b/src/cmd/go/internal/load/pkg.go
+@@ -2277,6 +2277,17 @@ func appendBuildSetting(info *debug.BuildInfo, key, value string) {
+ info.Settings = append(info.Settings, debug.BuildSetting{Key: key, Value: value})
+ }
+
++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 and sets it into
+ // p.Internal.BuildInfo, which will later be formatted as a string and embedded
+ // in the binary. setBuildInfo should only be called on a main package with no
+@@ -2384,7 +2395,7 @@ func (p *Package) setBuildInfo(ctx context.Context, autoVCS bool) {
+ if gcflags := BuildGcflags.String(); gcflags != "" && cfg.BuildContext.Compiler == "gc" {
+ appendSetting("-gcflags", gcflags)
+ }
+- if ldflags := BuildLdflags.String(); ldflags != "" {
++ if ldflags := filterCompilerFlags(BuildLdflags.String()); ldflags != "" {
+ // https://go.dev/issue/52372: only include ldflags if -trimpath is not set,
+ // since it can include system paths through various linker flags (notably
+ // -extar, -extld, and -extldflags).
+@@ -2427,7 +2438,7 @@ func (p *Package) setBuildInfo(ctx context.Context, autoVCS bool) {
+ // subset of flags that are known not to be paths?
+ if cfg.BuildContext.CgoEnabled && !cfg.BuildTrimpath {
+ 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)
+--
+2.44.0
+