[PATCH 001/150] oss-fuzz/build: remove LIB_FUZZING_ENGINE

[Paolo Bonzini <pbonzini@redhat.com>]

Meson build scripts will only include qemu-fuzz-TARGET rules if configured
with --enable-fuzzing, and that takes care of adding -fsanitize=fuzzer.
Therefore we can just specify the configure option and stop modifying
the CFLAGS and CONFIG_FUZZ options in the "make" invocation.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 scripts/oss-fuzz/build.sh | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/scripts/oss-fuzz/build.sh b/scripts/oss-fuzz/build.sh
index a07b3022e8..52430cb620 100755
--- a/scripts/oss-fuzz/build.sh
+++ b/scripts/oss-fuzz/build.sh
@@ -20,7 +20,7 @@
 # e.g.
 # $CXX $CXXFLAGS -std=c++11 -Iinclude \
 #     /path/to/name_of_fuzzer.cc -o $OUT/name_of_fuzzer \
-#     $LIB_FUZZING_ENGINE /path/to/library.a
+#     -fsanitize=fuzzer /path/to/library.a
 
 fatal () {
     echo "Error : ${*}, exiting."
@@ -54,10 +54,6 @@ mkdir -p $OSS_FUZZ_BUILD_DIR || fatal "mkdir $OSS_FUZZ_BUILD_DIR failed"
 cd $OSS_FUZZ_BUILD_DIR || fatal "cd $OSS_FUZZ_BUILD_DIR failed"
 
 
-if [ -z ${LIB_FUZZING_ENGINE+x} ]; then
-    LIB_FUZZING_ENGINE="-fsanitize=fuzzer"
-fi
-
 if [ -z ${OUT+x} ]; then
     DEST_DIR=$(realpath "./DEST_DIR")
 else
@@ -67,14 +63,12 @@ fi
 mkdir -p "$DEST_DIR/lib/"  # Copy the shared libraries here
 
 # Build once to get the list of dynamic lib paths, and copy them over
-../configure --disable-werror --cc="$CC" --cxx="$CXX" \
+../configure --disable-werror --cc="$CC" --cxx="$CXX" --enable-fuzzing \
     --extra-cflags="$EXTRA_CFLAGS" --target-list="i386-softmmu"
 
-if ! make CONFIG_FUZZ=y CFLAGS="$LIB_FUZZING_ENGINE" "-j$(nproc)" \
-    i386-softmmu/fuzz; then
+if ! make "-j$(nproc)" i386-softmmu/fuzz; then
     fatal "Build failed. Please specify a compiler with fuzzing support"\
-          "using the \$CC and \$CXX environemnt variables, or specify a"\
-          "\$LIB_FUZZING_ENGINE compatible with your compiler"\
+          "using the \$CC and \$CXX environemnt variables"\
           "\nFor example: CC=clang CXX=clang++ $0"
 fi
 
@@ -87,7 +81,7 @@ rm ./i386-softmmu/qemu-fuzz-i386
 ../configure --bindir="$DEST_DIR" --datadir="$DEST_DIR/data/" --disable-werror \
     --cc="$CC" --cxx="$CXX" --extra-cflags="$EXTRA_CFLAGS" \
     --extra-ldflags="-Wl,-rpath,'\$\$ORIGIN/lib'"
-make CONFIG_FUZZ=y CFLAGS="$LIB_FUZZING_ENGINE" "-j$(nproc)" i386-softmmu/fuzz
+make "-j$(nproc)" i386-softmmu/fuzz
 
 # Copy over the datadir
 cp  -r ../pc-bios/ "$DEST_DIR/pc-bios"
-- 
2.26.2