gcc/libsanitizer/merge.sh

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#!/bin/bash
# FIXME: do we need a license (or whatever else) header here?
# This script merges libsanitizer sources from upstream.
get_upstream() {
rm -rf upstream
git clone https://github.com/llvm/llvm-project.git upstream
}
get_current_rev() {
cd upstream
git rev-parse HEAD
}
list_files() {
(cd $1; ls *.{cc,cpp,h,inc,S} 2> /dev/null)
}
change_comment_headers() {
for f in $(list_files $1); do
sed -n 3p $1/$f | grep -q 'The LLVM Compiler Infrastructure' || continue
changed=$(awk 'NR != 2 && NR != 3' < $1/$f)
echo "$changed" > $1/$f
done
}
# ARGUMENTS: upstream_path local_path
# This function merges changes from the directory upstream_path to
# the directory local_path.
merge() {
upstream_path=upstream/compiler-rt/$1
local_path=$2
change_comment_headers $upstream_path
echo MERGE: $upstream_path
all=$( (list_files $upstream_path; list_files $local_path) | sort | uniq)
#echo $all
for f in $all; do
if [ -f $upstream_path/$f -a -f $local_path/$f ]; then
echo "FOUND IN BOTH :" $f
# diff -u $local_path/$f $upstream_path/$f
cp -v $upstream_path/$f $local_path
elif [ -f $upstream_path/$f ]; then
echo "FOUND IN UPSTREAM :" $f
cp -v $upstream_path/$f $local_path
git add $local_path/$f
elif [ -f $local_path/$f ]; then
echo "FOUND IN LOCAL :" $f
git rm $local_path/$f
fi
done
}
fatal() {
echo "$1"
exit 1;
}
pwd | grep 'libsanitizer$' || \
fatal "Run this script from libsanitizer dir"
get_upstream
CUR_REV=$(get_current_rev)
echo Current upstream revision: $CUR_REV
merge include/sanitizer include/sanitizer
merge lib/asan asan
merge lib/lsan lsan
merge lib/tsan/rtl tsan
merge lib/sanitizer_common sanitizer_common
merge lib/interception interception
merge lib/ubsan ubsan
merge lib/hwasan hwasan
# Need to merge lib/builtins/assembly.h file:
mkdir -p builtins
cp -v upstream/compiler-rt/lib/builtins/assembly.h builtins/assembly.h
rm -rf upstream
# Update the MERGE file.
cat << EOF > MERGE
$CUR_REV
The first line of this file holds the git revision number of the
last merge done from the master library sources.
EOF