php/archived-php-src
1
0
Fork 0
mirror of https://github.com/php/php-src.git synced 2026-03-24 08:12:21 +01:00
Code Issues Packages Projects Releases Wiki Activity

Add instructions for building an instrumented libonig

Browse Source 
[ci skip]
This commit is contained in:
Nikita Popov
2019-09-18 11:53:15 +02:00
parent 1fc2fec138
commit d7b4cdff3f
1 changed files with 17 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
sapi/fuzzer/README.md
View File

@@ -48,3 +48,20 @@ mkdir ./my-parser-corpus
sapi/fuzzer/php-fuzz-parser -merge=1 ./my-parser-corpus sapi/fuzzer/corpus/parser
sapi/fuzzer/php-fuzz-parser -only_ascii=1 ./my-parser-corpus
```
For the mbstring fuzzer, you may want to build the libonig dependency with instrumentation. At this time, libonig is not clean under ubsan, so only the fuzzer and address sanitizers may be used.
```sh
mkdir libonig
pushd libonig
wget -O - https://github.com/kkos/oniguruma/releases/download/v6.9.3/onig-6.9.3.tar.gz \
| tar -xz --strip-components=1
./configure CC=clang CFLAGS="-fsanitize=fuzzer-no-link,address -O2 -g"
make
popd
export ONIG_CFLAGS="-I$PWD/libonig/src"
export ONIG_LIBS="-L$PWD/libonig/src/.libs -l:libonig.a"
```
This will link an instrumented libonig statically into the PHP binary.