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ANDROID: build.config: re-disable LTO properly for KASAN

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build.config.gki_kasan was not setting the correct configs to disable
LTO for KASAN builds, since the configs differ between when LTO support
was first created downstream vs what landed upstream.

These builds are large and take a long time to build with LTO added.

CONFIG_LTO and CONFIG_LTO_CLANG are not user selectable. Instead, set
LTO=none which build.sh will interpret then properly disable
CONFIG_LTO_CLANG_FULL, CONFIG_LTO_CLANG_THIN, and enable
CONFIG_LTO_NONE.

Bug: 225394140
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I79d1ea94b04d0a55afeb8df2874aeb7099bb030c
This commit is contained in:
Nick Desaulniers 2022-03-21 11:51:24 -07:00
parent 19e2af8d70
commit 7304f8a0e0
1 changed files with 2 additions and 2 deletions
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4
build.config.gki_kasan
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@ -1,6 +1,8 @@
DEFCONFIG=gki_defconfig DEFCONFIG=gki_defconfig
POST_DEFCONFIG_CMDS="check_defconfig && update_kasan_config" POST_DEFCONFIG_CMDS="check_defconfig && update_kasan_config"
KERNEL_DIR=common KERNEL_DIR=common
LTO=none
function update_kasan_config() { function update_kasan_config() {
${KERNEL_DIR}/scripts/config --file ${OUT_DIR}/.config \ ${KERNEL_DIR}/scripts/config --file ${OUT_DIR}/.config \
-e CONFIG_KASAN \ -e CONFIG_KASAN \
@ -10,8 +12,6 @@ function update_kasan_config() {
-d CONFIG_RANDOMIZE_BASE \ -d CONFIG_RANDOMIZE_BASE \
-d CONFIG_KASAN_OUTLINE \ -d CONFIG_KASAN_OUTLINE \
--set-val CONFIG_FRAME_WARN 0 \ --set-val CONFIG_FRAME_WARN 0 \
-d LTO \
-d LTO_CLANG \
-d CFI \ -d CFI \
-d CFI_PERMISSIVE \ -d CFI_PERMISSIVE \
-d CFI_CLANG \ -d CFI_CLANG \