From b0e34e6690df382042eb29b148236d071f492a45 Mon Sep 17 00:00:00 2001 From: Angelo Compagnucci Date: Fri, 11 May 2018 22:50:33 +0200 Subject: [PATCH] package/go: fixing host go cross compilation Actually if GOHOSTOS == GOOS || GOHOSTARCH == GOARCH the go build system assume it's not cross compiling and uses the same toolchain for both the host and the target. This commit adds a patch to enable the explicit GO_ASSUME_CROSSCOMPILING in go build system and updates to go package accordingly. Fixes: http://autobuild.buildroot.net/results/3636b1ac5756a782fd7578186508aaf9d105e3e9/ http://autobuild.buildroot.net/results/25790dca7e19527bb360d7dfb325cd9cfc3b56cc/ and many more. References: https://github.com/golang/go/issues/25177 https://golang.org/cl/112156 Signed-off-by: Angelo Compagnucci Signed-off-by: Anisse Astier Signed-off-by: Thomas Petazzoni --- ...explicit-option-for-crosscompilation.patch | 40 +++++++++++++++++++ package/go/go.mk | 3 +- 2 files changed, 42 insertions(+), 1 deletion(-) create mode 100644 package/go/0001-build.go-explicit-option-for-crosscompilation.patch diff --git a/package/go/0001-build.go-explicit-option-for-crosscompilation.patch b/package/go/0001-build.go-explicit-option-for-crosscompilation.patch new file mode 100644 index 0000000000..f76c5b1d03 --- /dev/null +++ b/package/go/0001-build.go-explicit-option-for-crosscompilation.patch @@ -0,0 +1,40 @@ +From e1382a731a726293e30901038c6870fa77ef6095 Mon Sep 17 00:00:00 2001 +From: Angelo Compagnucci +Date: Tue, 8 May 2018 16:08:44 +0200 +Subject: [PATCH] build.go: explicit option for crosscompilation + +Actually if GOHOSTOS == GOOS || GOHOSTARCH == GOARCH the go build system +assume it's not cross compiling and uses the same toolchain also for the +bootstrap. This is a problem in case the cross compilation mandates a +different toolchain for bootstrap and target. This patch adds +GO_ASSUME_CROSSCOMPILING varible to assure that in case of cross +compilation CC_FOR_TARGET can be different from CC. + +Signed-off-by: Angelo Compagnucci +Signed-off-by: Anisse Astier +--- + src/cmd/dist/build.go | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +diff --git a/src/cmd/dist/build.go b/src/cmd/dist/build.go +index 99d1db5..eb4097f 100644 +--- a/src/cmd/dist/build.go ++++ b/src/cmd/dist/build.go +@@ -252,12 +252,13 @@ func xinit() { + // $CC_FOR_goos_goarch, if set, applies only to goos/goarch. + func compilerEnv(envName, def string) map[string]string { + m := map[string]string{"": def} ++ crosscompiling := os.Getenv("GO_ASSUME_CROSSCOMPILING") + + if env := os.Getenv(envName); env != "" { + m[""] = env + } + if env := os.Getenv(envName + "_FOR_TARGET"); env != "" { +- if gohostos != goos || gohostarch != goarch { ++ if gohostos != goos || gohostarch != goarch || crosscompiling == "1" { + m[gohostos+"/"+gohostarch] = m[""] + } + m[""] = env +-- +2.7.4 + diff --git a/package/go/go.mk b/package/go/go.mk index 4d55e16cc3..6af58f04be 100644 --- a/package/go/go.mk +++ b/package/go/go.mk @@ -75,7 +75,8 @@ HOST_GO_MAKE_ENV = \ $(if $(GO_GOARM),GOARM=$(GO_GOARM)) \ GOOS=linux \ CC=$(HOSTCC_NOCCACHE) \ - CXX=$(HOSTCXX_NOCCACHE) + CXX=$(HOSTCXX_NOCCACHE) \ + GO_ASSUME_CROSSCOMPILING=1 HOST_GO_TARGET_CC = \ CC_FOR_TARGET="$(TARGET_CC)" \ -- 2.39.2