[libxml2]Add libxml2 library

libxml2/fuzz/oss-fuzz-build.sh

@@ -0,0 +1,62 @@
+#!/bin/bash -eu
+
+# OSS-Fuzz integration, see
+# https://github.com/google/oss-fuzz/tree/master/projects/libxml2
+
+# Add extra UBSan checks
+if [ "$SANITIZER" = undefined ]; then
+    extra_checks="integer,float-divide-by-zero"
+    extra_cflags="-fsanitize=$extra_checks -fno-sanitize-recover=$extra_checks"
+    export CFLAGS="$CFLAGS $extra_cflags"
+    export CXXFLAGS="$CXXFLAGS $extra_cflags"
+fi
+
+# Don't enable zlib with MSan
+if [ "$SANITIZER" = memory ]; then
+    CONFIG=''
+else
+    CONFIG='--with-zlib'
+fi
+
+# Workaround for a LeakSanitizer crashes,
+# see https://github.com/google/oss-fuzz/issues/11798.
+if [ "$ARCHITECTURE" = "aarch64" ]; then
+    export ASAN_OPTIONS=detect_leaks=0
+fi
+
+export V=1
+
+./autogen.sh \
+    --disable-shared \
+    --without-debug \
+    --without-http \
+    --without-python \
+    $CONFIG
+make -j$(nproc)
+
+cd fuzz
+make clean-corpus
+make fuzz.o
+
+for fuzzer in \
+    api html lint reader regexp schema uri valid xinclude xml xpath
+do
+    OBJS="$fuzzer.o"
+    if [ "$fuzzer" = lint ]; then
+        OBJS="$OBJS ../xmllint.o ../shell.o"
+    fi
+    make $OBJS
+    # Link with $CXX
+    $CXX $CXXFLAGS \
+        $OBJS fuzz.o \
+        -o $OUT/$fuzzer \
+        $LIB_FUZZING_ENGINE \
+        ../.libs/libxml2.a -Wl,-Bstatic -lz -Wl,-Bdynamic
+
+    if [ $fuzzer != api ]; then
+        [ -e seed/$fuzzer ] || make seed/$fuzzer.stamp
+        zip -j $OUT/${fuzzer}_seed_corpus.zip seed/$fuzzer/*
+    fi
+done
+
+cp *.dict *.options $OUT/