From 21435953e16cda318a82334ddbadb3b5c36d9ea7 Mon Sep 17 00:00:00 2001
From: V3n3RiX <venerix@redcorelinux.org>
Date: Wed, 15 Jan 2020 15:51:32 +0000
Subject: gentoo resync : 15.01.2020

---
 eclass/toolchain.eclass | 38 ++++++++++++++++++++++++++------------
 1 file changed, 26 insertions(+), 12 deletions(-)

(limited to 'eclass/toolchain.eclass')

diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index 8929a1869fc6..bd3d024f9891 100644
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -438,9 +438,9 @@ toolchain_pkg_setup() {
 toolchain_src_unpack() {
 	if [[ ${PV} == *9999* ]]; then
 		git-r3_src_unpack
-	else
-		gcc_quick_unpack
 	fi
+
+	gcc_quick_unpack
 }
 
 gcc_quick_unpack() {
@@ -455,6 +455,8 @@ gcc_quick_unpack() {
 	# 'GCC_A_FAKEIT' to specify it's own source and binary tarballs.
 	if [[ -n ${GCC_A_FAKEIT} ]] ; then
 		unpack ${GCC_A_FAKEIT}
+	elif [[ ${PV} == *9999* ]]; then
+		: # sources comes from git, not tarball
 	elif [[ -n ${PRERELEASE} ]] ; then
 		unpack gcc-${PRERELEASE}.tar.bz2
 	elif [[ -n ${SNAPSHOT} ]] ; then
@@ -1207,6 +1209,15 @@ toolchain_src_configure() {
 		is-flagq -mfloat-gprs=double && confgcc+=( --enable-e500-double )
 		[[ ${CTARGET//_/-} == *-e500v2-* ]] && confgcc+=( --enable-e500-double )
 		;;
+	ppc64)
+		# On ppc64 big endian target gcc assumes elfv1 by default,
+		# and elfv2 on little endian
+		# but musl does not support elfv1 at all on any endian ppc64
+		# see https://git.musl-libc.org/cgit/musl/tree/INSTALL
+		# https://bugs.gentoo.org/704784
+		# https://gcc.gnu.org/PR93157
+		[[ ${CTARGET} == powerpc64-*-musl ]] && confgcc+=( --with-abi=elfv2 )
+		;;
 	riscv)
 		# Add --with-abi flags to set default ABI
 		confgcc+=( --with-abi=$(gcc-abi-map ${TARGET_DEFAULT_ABI}) )
@@ -1395,7 +1406,8 @@ downgrade_arch_flags() {
 	local arch bver i isa myarch mytune rep ver
 
 	bver=${1:-${GCC_BRANCH_VER}}
-	[[ $(gcc-version) < ${bver} ]] && return 0
+	# Don't perform downgrade if running gcc is older than ebuild's.
+	tc_version_is_at_least ${bver} $(gcc-version) || return 0
 	[[ $(tc-arch) != amd64 && $(tc-arch) != x86 ]] && return 0
 
 	myarch=$(get-flag march)
@@ -1403,7 +1415,7 @@ downgrade_arch_flags() {
 
 	# If -march=native isn't supported we have to tease out the actual arch
 	if [[ ${myarch} == native || ${mytune} == native ]] ; then
-		if [[ ${bver} < 4.2 ]] ; then
+		if ! tc_version_is_at_least 4.2 ${bver}; then
 			arch=$($(tc-getCC) -march=native -v -E -P - </dev/null 2>&1 \
 				| sed -rn "/cc1.*-march/s:.*-march=([^ ']*).*:\1:p")
 			replace-cpu-flags native ${arch}
@@ -1411,10 +1423,10 @@ downgrade_arch_flags() {
 	fi
 
 	# Handle special -mtune flags
-	[[ ${mytune} == intel && ${bver} < 4.9 ]] && replace-cpu-flags intel generic
-	[[ ${mytune} == generic && ${bver} < 4.2 ]] && filter-flags '-mtune=*'
+	[[ ${mytune} == intel ]] && ! tc_version_is_at_least 4.9 ${bver} && replace-cpu-flags intel generic
+	[[ ${mytune} == generic ]] && ! tc_version_is_at_least 4.2 ${bver} && filter-flags '-mtune=*'
 	[[ ${mytune} == x86-64 ]] && filter-flags '-mtune=*'
-	[[ ${bver} < 3.4 ]] && filter-flags '-mtune=*'
+	tc_version_is_at_least 3.4 ${bver} || filter-flags '-mtune=*'
 
 	# "added" "arch" "replacement"
 	local archlist=(
@@ -1464,8 +1476,8 @@ downgrade_arch_flags() {
 
 		[[ ${myarch} != ${arch} && ${mytune} != ${arch} ]] && continue
 
-		if [[ ${ver} > ${bver} ]] ; then
-			einfo "Replacing ${myarch} (added in gcc ${ver}) with ${rep}..."
+		if ! tc_version_is_at_least ${ver} ${bver}; then
+			einfo "Downgrading '${myarch}' (added in gcc ${ver}) with '${rep}'..."
 			[[ ${myarch} == ${arch} ]] && replace-cpu-flags ${myarch} ${rep}
 			[[ ${mytune} == ${arch} ]] && replace-cpu-flags ${mytune} ${rep}
 			continue
@@ -1513,7 +1525,7 @@ downgrade_arch_flags() {
 	for ((i = 0; i < ${#isalist[@]}; i += 2)) ; do
 		ver=${isalist[i]}
 		isa=${isalist[i + 1]}
-		[[ ${ver} > ${bver} ]] && filter-flags ${isa} ${isa/-m/-mno-}
+		tc_version_is_at_least ${ver} ${bver} || filter-flags ${isa} ${isa/-m/-mno-}
 	done
 }
 
@@ -1763,8 +1775,10 @@ gcc_do_make() {
 
 toolchain_src_test() {
 	cd "${WORKDIR}"/build
-	# enable verbose test run and result logging
-	emake -k check
+	# 'asan' wants to be preloaded first, so does 'sandbox'.
+	# To make asan tests work disable sandbox for all of test suite.
+	# 'backtrace' tests also does not like 'libsandbox.so' presence.
+	SANDBOX_ON=0 LD_PRELOAD= emake -k check
 }
 
 #---->> src_install <<----
-- 
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