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1 #!/bin/bash
2
3 # FIXME: do we need a license (or whatever else) header here?
4
5 # This script merges libsanitizer sources from upstream.
6
7 get_upstream() {
8 rm -rf upstream
9 git clone https://github.com/llvm/llvm-project.git upstream
10 }
11
12 get_current_rev() {
13 cd upstream
14 git rev-parse HEAD
15 }
16
17 list_files() {
18 (cd $1; ls *.{cc,cpp,h,inc,S} 2> /dev/null)
19
20 }
21
22 change_comment_headers() {
23 for f in $(list_files $1); do
24 sed -n 3p $1/$f | grep -q 'The LLVM Compiler Infrastructure' || continue
25 changed=$(awk 'NR != 2 && NR != 3' < $1/$f)
26 echo "$changed" > $1/$f
27 done
28 }
29
30 # ARGUMENTS: upstream_path local_path
31 # This function merges changes from the directory upstream_path to
32 # the directory local_path.
33 merge() {
34 upstream_path=upstream/compiler-rt/$1
35 local_path=$2
36 change_comment_headers $upstream_path
37 echo MERGE: $upstream_path
38 all=$( (list_files $upstream_path; list_files $local_path) | sort | uniq)
39 #echo $all
40 for f in $all; do
41 if [ -f $upstream_path/$f -a -f $local_path/$f ]; then
42 echo "FOUND IN BOTH :" $f
43 # diff -u $local_path/$f $upstream_path/$f
44 cp -v $upstream_path/$f $local_path
45 elif [ -f $upstream_path/$f ]; then
46 echo "FOUND IN UPSTREAM :" $f
47 cp -v $upstream_path/$f $local_path
48 git add $local_path/$f
49 elif [ -f $local_path/$f ]; then
50 echo "FOUND IN LOCAL :" $f
51 git rm $local_path/$f
52 fi
53 done
54
55 }
56
57 fatal() {
58 echo "$1"
59 exit 1;
60 }
61
62 pwd | grep 'libsanitizer$' || \
63 fatal "Run this script from libsanitizer dir"
64 get_upstream
65 CUR_REV=$(get_current_rev)
66 echo Current upstream revision: $CUR_REV
67 merge include/sanitizer include/sanitizer
68 merge lib/asan asan
69 merge lib/lsan lsan
70 merge lib/tsan/rtl tsan
71 merge lib/sanitizer_common sanitizer_common
72 merge lib/interception interception
73 merge lib/ubsan ubsan
74
75 # Need to merge lib/builtins/assembly.h file:
76 mkdir -p builtins
77 cp -v upstream/compiler-rt/lib/builtins/assembly.h builtins/assembly.h
78
79 rm -rf upstream
80
81 # Update the MERGE file.
82 cat << EOF > MERGE
83 $CUR_REV
84
85 The first line of this file holds the git revision number of the
86 last merge done from the master library sources.
87 EOF