[patch] Add LTO symlink support to gcc-config

0001-Add-support-for-symlinking-appropriate-LTO-plugin.patch (text/plain), 1.36 KB, created by Shane Peelar on 2017-09-21 17:08:17 UTC

From b87a6228e90fb0704fe7c47bddf701e94f4798a1 Mon Sep 17 00:00:00 2001
From: Shane Peelar <[e-mail]>
Date: Thu, 21 Sep 2017 13:05:14 -0400
Subject: [PATCH] Add support for symlinking appropriate LTO plugin

Since Binutils 2.25, automatic loading of LTO plugins is supported from
binutils, but the LTO plugins must be in the bfd-plugins directory in
order to be found.  This patches gcc-config to automatically do this.

Signed-off-by: Shane Peelar <[e-mail]>
---
 gcc-config | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/gcc-config b/gcc-config
index 7fcde15..11fa58f 100755
--- a/gcc-config
+++ b/gcc-config
@@ -689,6 +689,19 @@ switch_profile() {
 
 	update_wrappers ${CTARGET}
 
+	#Update LTO plugin for GCC.  Supported as of binutils 2.25 (which is masked)
+	local BFD_PLUGINS_DIR
+	local LIBLTO_PLUGIN
+	LIBLTO_PLUGIN="${EROOT}usr/libexec/gcc/${CTARGET}/${CC_COMP_VERSION}/liblto_plugin.so"
+	if is_cross_compiler; then
+		BFD_PLUGINS_DIR="${EROOT}usr/${CHOST}/${CTARGET}/binutils-bin/lib/bfd-plugins"
+	else
+		BFD_PLUGINS_DIR="${EROOT}usr/${CHOST}/binutils-bin/lib/bfd-plugins"
+	fi
+	ewarn "Updating LTO plugin symlink in ${BFD_PLUGINS_DIR}"
+	mkdir -p "${BFD_PLUGINS_DIR}"
+	ln -sf "${LIBLTO_PLUGIN}" "${BFD_PLUGINS_DIR}"
+
 	if [[ ${ROOT} == "/" ]] && \
 	   [[ ${FORCE} == "yes" || ${envd_changed} -gt 0 ]]
 	then
-- 
2.14.1