From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 21 Feb 2018 19:31:05 +0000 (+0100)
Subject: toolchain/gcc: use version 7.x for x86 by default
X-Git-Tag: v18.06.0-rc1~847
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=7a97588bc6ae70a134456833d4d489148e38a5aa;p=openwrt%2Fopenwrt.git

toolchain/gcc: use version 7.x for x86 by default

This is needed for retpoline support, which mitigates the spectre
attacks.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/toolchain/gcc/Config.in b/toolchain/gcc/Config.in
index 30ac137873..1456985cc2 100644
--- a/toolchain/gcc/Config.in
+++ b/toolchain/gcc/Config.in
@@ -3,6 +3,7 @@
 choice
 	prompt "GCC compiler Version" if TOOLCHAINOPTS
 	default GCC_USE_VERSION_7_1_ARC if arc
+	default GCC_USE_VERSION_7 if x86_64 || i386
 	default GCC_USE_VERSION_5
 	help
 	  Select the version of gcc you wish to use.
diff --git a/toolchain/gcc/Config.version b/toolchain/gcc/Config.version
index b641cfeb4e..2fc50827d2 100644
--- a/toolchain/gcc/Config.version
+++ b/toolchain/gcc/Config.version
@@ -2,9 +2,14 @@ config GCC_VERSION_7_1_ARC
 	default y if (!TOOLCHAINOPTS && arc)
 	bool
 
+config GCC_VERSION_7
+	default y if GCC_USE_VERSION_7
+	default y if x86_64 || i386
+	bool
+
 config GCC_VERSION
 	string
 	default "arc-2017.09-release"   if GCC_VERSION_7_1_ARC
 	default "6.3.0"         if GCC_USE_VERSION_6
-	default "7.3.0"         if GCC_USE_VERSION_7
+	default "7.3.0"         if GCC_VERSION_7
 	default "5.5.0"