Enable jitting in pcre2 (#11195)

This corresponds to an issue on PCRE2 regarding fuzzer improvements
w.r.t. JIT: PCRE2Project/pcre2#317

Author: addisoncrump

projects/pcre2/build.sh

@@ -17,13 +17,43 @@
 
 # build project
 ./autogen.sh
-./configure --enable-fuzz-support --enable-never-backslash-C --with-match-limit=1000 --with-match-limit-depth=1000
+./configure --enable-fuzz-support \
+    --enable-never-backslash-C --with-match-limit=1000 --with-match-limit-depth=1000 \
+    --enable-jit \
+    --enable-pcre2-16 --enable-pcre2-32
 make -j$(nproc) clean
 make -j$(nproc) all
 
-# build fuzzer
+# build fuzzers
 $CXX $CXXFLAGS -o $OUT/pcre2_fuzzer \
     $LIB_FUZZING_ENGINE .libs/libpcre2-fuzzsupport.a .libs/libpcre2-8.a
+$CXX $CXXFLAGS -o $OUT/pcre2_fuzzer_16 \
+    $LIB_FUZZING_ENGINE .libs/libpcre2-fuzzsupport-16.a .libs/libpcre2-16.a
+$CXX $CXXFLAGS -o $OUT/pcre2_fuzzer_32 \
+    $LIB_FUZZING_ENGINE .libs/libpcre2-fuzzsupport-32.a .libs/libpcre2-32.a
+
+# test different link sizes
+for i in $(seq 3 4); do
+    ./configure --enable-fuzz-support \
+        --enable-never-backslash-C --with-match-limit=1000 --with-match-limit-depth=1000 \
+        --enable-jit \
+        --enable-pcre2-16 --enable-pcre2-32 --with-link-size=${i}
+    make -j$(nproc) clean
+    make -j$(nproc) all
+
+    # build fuzzers
+    $CXX $CXXFLAGS -o $OUT/pcre2_fuzzer_${i}l \
+        $LIB_FUZZING_ENGINE .libs/libpcre2-fuzzsupport.a .libs/libpcre2-8.a
+    $CXX $CXXFLAGS -o $OUT/pcre2_fuzzer_16_${i}l \
+        $LIB_FUZZING_ENGINE .libs/libpcre2-fuzzsupport-16.a .libs/libpcre2-16.a
+    $CXX $CXXFLAGS -o $OUT/pcre2_fuzzer_32_${i}l \
+        $LIB_FUZZING_ENGINE .libs/libpcre2-fuzzsupport-32.a .libs/libpcre2-32.a
+done
 
 # set up dictionary and options to use it
-cp pcre2_fuzzer.options pcre2_fuzzer.dict $OUT/
+for bits in "" "_16" "_32"; do
+  cp "pcre2_fuzzer${bits}.dict" "${OUT}/pcre2_fuzzer${bits}.dict"
+  for linksize in "" "_3l" "_4l"; do
+    cp "pcre2_fuzzer${bits}.options" "${OUT}/pcre2_fuzzer${bits}${linksize}.options"
+  done
+done

projects/pcre2/project.yaml

@@ -12,3 +12,5 @@ sanitizers:
 architectures:
   - x86_64
   - i386
+auto_ccs:
+  - "[email protected]"