[patch] Patch

kexec-tools.patch (text/plain), 3.48 KB, created by Arfrever Frehtes Taifersar Arahesis on 2019-08-27 07:47:24 UTC

From a840fcade05040fd95fc30fb4b0f68b024f5b308 Mon Sep 17 00:00:00 2001
From: Arfrever Frehtes Taifersar Arahesis <[e-mail]>
Date: Tue, 27 Aug 2019 07:39:08 +0000
Subject: [PATCH] sys-apps/kexec-tools: Respect CFLAGS for purgatory.

Only when building purgatory, replace -mfunction-return=thunk and -mindirect-branch=thunk flags
with similar -mfunction-return=thunk-inline and -mindirect-branch=thunk-inline flags, which
are not incompatible with flags added by build system.

Closes: https://bugs.gentoo.org/646536
Closes: https://bugs.gentoo.org/692930
Signed-off-by: Arfrever Frehtes Taifersar Arahesis <[e-mail]>
---
 .../kexec-tools/kexec-tools-2.0.20.ebuild     | 22 ++++++++++++++++++-
 sys-apps/kexec-tools/kexec-tools-9999.ebuild  | 22 ++++++++++++++++++-
 2 files changed, 42 insertions(+), 2 deletions(-)

diff --git a/sys-apps/kexec-tools/kexec-tools-2.0.20.ebuild b/sys-apps/kexec-tools/kexec-tools-2.0.20.ebuild
index a96230eff79..48d63b15190 100644
--- a/sys-apps/kexec-tools/kexec-tools-2.0.20.ebuild
+++ b/sys-apps/kexec-tools/kexec-tools-2.0.20.ebuild
@@ -44,12 +44,15 @@ pkg_setup() {
 
 src_prepare() {
 	default
+
+	# Append PURGATORY_EXTRA_CFLAGS flags set by configure, instead of overriding them completely.
+	sed -e "/^PURGATORY_EXTRA_CFLAGS =/s/=/+=/" -i Makefile.in || die
+
 	if [[ "${PV}" == 9999 ]] ; then
 		eautoreconf
 	else
 		elibtoolize
 	fi
-	filter-flags '-mindirect-branch=thunk*'
 }
 
 src_configure() {
@@ -62,6 +65,23 @@ src_configure() {
 	econf "${myeconfargs[@]}"
 }
 
+src_compile() {
+	# Respect CFLAGS for purgatory.
+	# purgatory/Makefile uses PURGATORY_EXTRA_CFLAGS variable.
+	# -mfunction-return=thunk and -mindirect-branch=thunk conflict with
+	# -mcmodel=large which is added by build system.
+	# Replace them with -mfunction-return=thunk-inline and -mindirect-branch=thunk-inline.
+	local flag flags=()
+	for flag in ${CFLAGS}; do
+		[[ ${flag} == -mfunction-return=thunk ]] && flag="-mfunction-return=thunk-inline"
+		[[ ${flag} == -mindirect-branch=thunk ]] && flag="-mindirect-branch=thunk-inline"
+		flags+=("${flag}")
+	done
+	local -x PURGATORY_EXTRA_CFLAGS="${flags[*]}"
+
+	default
+}
+
 src_install() {
 	default
 
diff --git a/sys-apps/kexec-tools/kexec-tools-9999.ebuild b/sys-apps/kexec-tools/kexec-tools-9999.ebuild
index a96230eff79..48d63b15190 100644
--- a/sys-apps/kexec-tools/kexec-tools-9999.ebuild
+++ b/sys-apps/kexec-tools/kexec-tools-9999.ebuild
@@ -44,12 +44,15 @@ pkg_setup() {
 
 src_prepare() {
 	default
+
+	# Append PURGATORY_EXTRA_CFLAGS flags set by configure, instead of overriding them completely.
+	sed -e "/^PURGATORY_EXTRA_CFLAGS =/s/=/+=/" -i Makefile.in || die
+
 	if [[ "${PV}" == 9999 ]] ; then
 		eautoreconf
 	else
 		elibtoolize
 	fi
-	filter-flags '-mindirect-branch=thunk*'
 }
 
 src_configure() {
@@ -62,6 +65,23 @@ src_configure() {
 	econf "${myeconfargs[@]}"
 }
 
+src_compile() {
+	# Respect CFLAGS for purgatory.
+	# purgatory/Makefile uses PURGATORY_EXTRA_CFLAGS variable.
+	# -mfunction-return=thunk and -mindirect-branch=thunk conflict with
+	# -mcmodel=large which is added by build system.
+	# Replace them with -mfunction-return=thunk-inline and -mindirect-branch=thunk-inline.
+	local flag flags=()
+	for flag in ${CFLAGS}; do
+		[[ ${flag} == -mfunction-return=thunk ]] && flag="-mfunction-return=thunk-inline"
+		[[ ${flag} == -mindirect-branch=thunk ]] && flag="-mindirect-branch=thunk-inline"
+		flags+=("${flag}")
+	done
+	local -x PURGATORY_EXTRA_CFLAGS="${flags[*]}"
+
+	default
+}
+
 src_install() {
 	default
 
-- 
2.23.0