commit fd90b5177016748f9e9bec76649231310649c172
author Joel Stanley <joel@jms.id.au> Mon Feb 26 12:27:41 2018 +1030
committer Joel Stanley <joel@jms.id.au> Mon Feb 26 16:47:33 2018 +1030
tree e15811e76906d20292afa4c9f3609183d89b3eda
parent 23e50dce8a0f28bc95c3e0f7aadb22b7f590740a

gcc: disable libsanitizer

GCC builds this library in order to enable the -fsanitize error detection
features. This part of the compile takes several minutes on a Westmere
Xeon build server, and to make it worse the build serialises at that
point.

Our GCC is 6.4 at this point. Running 'op-build toolchain' shows a
saving of about 33% (4 minutes) on a 40 core machine and a 25% (6
minutes) on a 2 core machine.

We build neither the kernel nor userspace with any of these tools, and
probably never will in production.

In order to save build time disable libsantizer for GCC builds.

Signed-off-by: Joel Stanley <joel@jms.id.au>

openpower/configs/zaius_defconfig

diff --git a/openpower/configs/zaius_defconfig b/openpower/configs/zaius_defconfig
index 4bc0edb..3f61998 100644
--- a/openpower/configs/zaius_defconfig
+++ b/openpower/configs/zaius_defconfig
@@ -1,7 +1,7 @@
 BR2_powerpc64le=y
 BR2_powerpc_power8=y
 BR2_BINUTILS_EXTRA_CONFIG_OPTIONS="--enable-targets=powerpc64-linux"
-BR2_EXTRA_GCC_CONFIG_OPTIONS="--enable-targets=powerpc64-linux"
+BR2_EXTRA_GCC_CONFIG_OPTIONS="--enable-targets=powerpc64-linux --disable-libsanitizer"
 BR2_TOOLCHAIN_BUILDROOT_CXX=y
 BR2_TARGET_GENERIC_HOSTNAME="skiroot"
 BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y