[patch] suggested patch

firefox-91-split-up-neon-thumb2.patch (text/plain), 2.11 KB, created by tt_1 on 2021-08-25 10:31:40 UTC

From 0fb3b3c834efe4e44aab0470ade4efc4827c2dd1 Mon Sep 17 00:00:00 2001
From: stefson <[e-mail]>
Date: Wed, 25 Aug 2021 12:22:40 +0200
Subject: [PATCH 1/2] www-client/firefox: allow split up of neon and thumb2

---
 www-client/firefox/firefox-91.0.2.ebuild | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/www-client/firefox/firefox-91.0.2.ebuild b/www-client/firefox/firefox-91.0.2.ebuild
index b606ecd707c3e..a924a4702f97e 100644
--- a/www-client/firefox/firefox-91.0.2.ebuild
+++ b/www-client/firefox/firefox-91.0.2.ebuild
@@ -61,10 +61,10 @@ KEYWORDS="~amd64 ~arm64 ~ppc64 ~x86"
 
 SLOT="0/$(ver_cut 1)"
 LICENSE="MPL-2.0 GPL-2 LGPL-2.1"
-IUSE="+clang cpu_flags_arm_neon dbus debug eme-free geckodriver +gmp-autoupdate
-	hardened hwaccel jack lto +openh264 pgo pulseaudio screencast sndio selinux
-	+system-av1 +system-harfbuzz +system-icu +system-jpeg +system-libevent
-	+system-libvpx +system-webp wayland wifi"
+IUSE="+clang cpu_flags_arm_neon cpu_flags_arm_thumb2 dbus debug eme-free geckodriver 
+	+gmp-autoupdate	hardened hwaccel jack lto +openh264 pgo pulseaudio screencast 
+	sndio selinux +system-av1 +system-harfbuzz +system-icu +system-jpeg 
+	+system-libevent +system-libvpx +system-webp wayland wifi"
 
 REQUIRED_USE="debug? ( !system-av1 )
 	screencast? ( wayland )"
@@ -783,15 +783,17 @@ src_configure() {
 	filter-flags '-O*'
 
 	# Modifications to better support ARM, bug #553364
+	# gcc and clang are both fine with neon optimization
 	if use cpu_flags_arm_neon ; then
 		mozconfig_add_options_ac '+cpu_flags_arm_neon' --with-fpu=neon
+	fi
 
-		if ! tc-is-clang ; then
-			# thumb options aren't supported when using clang, bug 666966
-			mozconfig_add_options_ac '+cpu_flags_arm_neon' \
-				--with-thumb=yes \
-				--with-thumb-interwork=no
-		fi
+	if cpu_flags_arm_thumb2 && ! tc-is-clang ; then
+		# thumb options aren't supported when using clang, bug 666966
+		# this needs special thumbv7neon-unknown-linux-gnueabihf rust-std
+		mozconfig_add_options_ac '+cpu_flags_arm_thumb2' \
+			--with-thumb=yes \
+			--with-thumb-interwork=no
 	fi
 
 	if [[ ${CHOST} == armv*h* ]] ; then