Git-Mirrors/DivestOS
1
0
Fork 0
mirror of https://github.com/Divested-Mobile/DivestOS-Build.git synced 2025-05-02 06:26:20 -04:00
Code Issues Projects Releases Packages Wiki Activity

Enable Clang's -ftrivial-auto-var-init=zero on supported kernels

Browse source 
Signed-off-by: Tad <tad@spotco.us>
This commit is contained in:
Tad 2022-03-31 20:27:25 -04:00
parent 256df737a3
commit e2c499dd24
5 changed files with 60 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

35
Scripts/Common/Functions.sh
View file

@ -536,6 +536,41 @@ hardenBootArgs() {
}
export -f hardenBootArgs;
enableAutoVarInit() {
cd "$DOS_BUILD_BASE";
for kernel in "${DOS_AUTOVARINIT_KERNELS[@]}"
do
if [ -d "$DOS_BUILD_BASE/kernel/$kernel" ]; then
cd "$DOS_BUILD_BASE/kernel/$kernel";
if git apply --check "$DOS_PATCHES_COMMON/android_kernel_common/0001-auto_var_init.patch" &> /dev/null; then
if git apply "$DOS_PATCHES_COMMON/android_kernel_common/0001-auto_var_init.patch" &> /dev/null; then #(GrapheneOS)
echo "auto-var-init: Enabled for $kernel";
else
echo "auto-var-init: Failed to enable for $kernel";
fi;
elif git apply --check --reverse "$DOS_PATCHES_COMMON/android_kernel_common/0001-auto_var_init.patch" &> /dev/null; then
echo "auto-var-init: Already enabled for $kernel";
elif grep -q "trivial-auto-var-init=pattern" Makefile; then
sed -i 's/ftrivial-auto-var-init=pattern/ftrivial-auto-var-init=zero -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang/' Makefile; #(GrapheneOS)
grep -q "trivial-auto-var-init=pattern" Makefile;
if [ $? -eq 0 ]; then
echo "auto-var-init: Failed to switch from pattern to zero on $kernel";
else
echo "auto-var-init: Switched from pattern to zero on $kernel";
fi;
elif grep -q "trivial-auto-var-init=zero" Makefile; then
echo "auto-var-init: Already enabled for $kernel";
else
echo "auto-var-init: Could not enable for $kernel";
fi;
# else
# echo "auto-var-init: $kernel not in tree";
fi;
done;
cd "$DOS_BUILD_BASE";
}
export -f enableAutoVarInit;
disableEnforceRRO() {
cd "$DOS_BUILD_BASE$1";
awk -i inplace '!/PRODUCT_ENFORCE_RRO_TARGETS .= framework-res/' *.mk &>/dev/null || true;