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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 <angelo@amarulasolutions.com> Signed-off-by: Anisse Astier <anisse@astier.eu> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
41 lines
1.5 KiB
Diff
41 lines
1.5 KiB
Diff
From e1382a731a726293e30901038c6870fa77ef6095 Mon Sep 17 00:00:00 2001
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From: Angelo Compagnucci <angelo@amarulasolutions.com>
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Date: Tue, 8 May 2018 16:08:44 +0200
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Subject: [PATCH] build.go: explicit option for crosscompilation
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Actually if GOHOSTOS == GOOS || GOHOSTARCH == GOARCH the go build system
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assume it's not cross compiling and uses the same toolchain also for the
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bootstrap. This is a problem in case the cross compilation mandates a
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different toolchain for bootstrap and target. This patch adds
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GO_ASSUME_CROSSCOMPILING varible to assure that in case of cross
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compilation CC_FOR_TARGET can be different from CC.
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Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
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Signed-off-by: Anisse Astier <anisse@astier.eu>
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---
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src/cmd/dist/build.go | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/src/cmd/dist/build.go b/src/cmd/dist/build.go
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index 99d1db5..eb4097f 100644
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--- a/src/cmd/dist/build.go
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+++ b/src/cmd/dist/build.go
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@@ -252,12 +252,13 @@ func xinit() {
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// $CC_FOR_goos_goarch, if set, applies only to goos/goarch.
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func compilerEnv(envName, def string) map[string]string {
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m := map[string]string{"": def}
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+ crosscompiling := os.Getenv("GO_ASSUME_CROSSCOMPILING")
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if env := os.Getenv(envName); env != "" {
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m[""] = env
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}
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if env := os.Getenv(envName + "_FOR_TARGET"); env != "" {
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- if gohostos != goos || gohostarch != goarch {
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+ if gohostos != goos || gohostarch != goarch || crosscompiling == "1" {
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m[gohostos+"/"+gohostarch] = m[""]
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}
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m[""] = env
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--
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2.7.4
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