From eac80eca4f0e54e38459438ba56d6172fda8cd32 Mon Sep 17 00:00:00 2001
From: Debarshi Ray <rishi@fedoraproject.org>
Date: Mon, 29 Jun 2020 17:57:47 +0200
Subject: [PATCH] build: Make the build flags match RHEL's %{gobuild} for PPC64

The Go toolchain doesn't play well with passing compiler and linker
flags via environment variables. The linker flags require a second
level of quoting, which leaves the build system without a quote level
to assign the flags to an environment variable like GOFLAGS.

This is one reason why RHEL doesn't have a RPM macro with only the
flags. The %{gobuild} RPM macro includes the entire 'go build ...'
invocation.

The Go toolchain also doesn't like the LDFLAGS environment variable as
exported by RHEL's %{meson} RPM macro, and RHEL's RPM toolchain doesn't
like the compressed DWARF data generated by the Go toolchain.

Note that these flags are only meant for the "ppc64" CPU architecture,
and should be kept updated to match RHEL's Go guidelines. Use
'rpm --eval "%{gobuild}"' to expand the %{gobuild} macro.
---
 src/go-build-wrapper | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/go-build-wrapper b/src/go-build-wrapper
index 515e1d8a0670..3bd47ce5ae6f 100755
--- a/src/go-build-wrapper
+++ b/src/go-build-wrapper
@@ -27,5 +27,6 @@ if ! cd "$1"; then
     exit 1
 fi
 
-go build -trimpath -ldflags "-extldflags '-Wl,--wrap,pthread_sigmask $4' -linkmode external -X github.com/containers/toolbox/pkg/version.currentVersion=$3" -o "$2/toolbox"
+unset LDFLAGS
+go build -compiler gc -tags="rpm_crashtraceback ${BUILDTAGS:-}" -ldflags "${LDFLAGS:-} -compressdwarf=false -B 0x$(head -c20 /dev/urandom|od -An -tx1|tr -d ' \n') -extldflags '-Wl,-z,relro -Wl,--as-needed  -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -Wl,--wrap,pthread_sigmask $4' -linkmode external -X github.com/containers/toolbox/pkg/version.currentVersion=$3" -a -v -x -o "$2/toolbox"
 exit "$?"
-- 
2.29.2