From: Christian Stewart <christian@paral.in>
Date: Sat, 7 Dec 2019 19:57:07 +0000 (-0800)
Subject: package/pkg-golang: enable trimpath option for reproducible builds
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=687230730dfb2bab9a54506867786c0bd1b985f1;p=buildroot.git

package/pkg-golang: enable trimpath option for reproducible builds

The -trimpath option (introduced in go 1.13) removes absolute build paths
from the target binary.  This results in more consistent / reproducible
builds across different systems with varying paths to Buildroot.

Signed-off-by: Christian Stewart <christian@paral.in>
[Peter: mention that this is a go 1.13+ feature]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---

diff --git a/package/pkg-golang.mk b/package/pkg-golang.mk
index e47de17aba..2494ce028c 100644
--- a/package/pkg-golang.mk
+++ b/package/pkg-golang.mk
@@ -61,6 +61,7 @@ $(2)_WORKSPACE ?= _gopath
 $(2)_BUILD_OPTS += \
 	-ldflags "$$($(2)_LDFLAGS)" \
 	-tags "$$($(2)_TAGS)" \
+	-trimpath \
 	-p $(PARALLEL_JOBS)
 
 # Target packages need the Go compiler on the host.