Commit 3d4f3485 authored by 李澍非 's avatar 李澍非
Browse files

fuzz: add configure flag --enable-fuzzing

parent 6879a405

configure

+39 −0
Original line number Diff line number Diff line
@@ -499,6 +499,7 @@ docker="no" 
debug_mutex="no"

libpmem=""

default_devices="yes"

fuzzing="no"



# cross compilers defaults, can be overridden with --cross-cc-ARCH

cross_cc_aarch64="aarch64-linux-gnu-gcc"
@@ -641,6 +642,15 @@ int main(void) { return 0; } 
EOF

}



write_c_fuzzer_skeleton() {

    cat > $TMPC <<EOF

#include <stdint.h>

#include <sys/types.h>

int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);

int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }

EOF

}



if check_define __linux__ ; then

  targetos="Linux"

elif check_define _WIN32 ; then
@@ -1543,6 +1553,10 @@ for opt do 
  ;;

  --disable-libpmem) libpmem=no

  ;;

  --enable-fuzzing) fuzzing=yes

  ;;

  --disable-fuzzing) fuzzing=no

  ;;

  *)

      echo "ERROR: unknown option $opt"

      echo "Try '$0 --help' for more information"
@@ -5904,6 +5918,15 @@ if has "docker"; then 
    docker=$($python $source_path/tests/docker/docker.py probe)

fi



##########################################

# checks for fuzzer

if test "$fuzzing" = "yes" ; then

  write_c_fuzzer_skeleton

  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address,fuzzer" ""; then

      have_fuzzer=yes

  fi

fi



##########################################

# check for libpmem
@@ -6481,6 +6504,7 @@ echo "docker $docker" 
echo "libpmem support   $libpmem"

echo "libudev           $libudev"

echo "default devices   $default_devices"

echo "fuzzing support   $fuzzing"



if test "$supported_cpu" = "no"; then

    echo
@@ -7306,6 +7330,16 @@ fi 
if test "$sheepdog" = "yes" ; then

  echo "CONFIG_SHEEPDOG=y" >> $config_host_mak

fi

if test "$fuzzing" = "yes" ; then

  if test "$have_fuzzer" = "yes"; then

    FUZZ_LDFLAGS=" -fsanitize=address,fuzzer"

    FUZZ_CFLAGS=" -fsanitize=address,fuzzer"

    CFLAGS=" -fsanitize=address,fuzzer-no-link"

  else

    error_exit "Your compiler doesn't support -fsanitize=address,fuzzer"

    exit 1

  fi

fi



if test "$tcg_interpreter" = "yes"; then

  QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/tci $QEMU_INCLUDES"
@@ -7396,6 +7430,11 @@ if test "$libudev" != "no"; then 
    echo "CONFIG_LIBUDEV=y" >> $config_host_mak

    echo "LIBUDEV_LIBS=$libudev_libs" >> $config_host_mak

fi

if test "$fuzzing" != "no"; then

    echo "CONFIG_FUZZ=y" >> $config_host_mak

    echo "FUZZ_CFLAGS=$FUZZ_CFLAGS" >> $config_host_mak

    echo "FUZZ_LDFLAGS=$FUZZ_LDFLAGS" >> $config_host_mak

fi



# use included Linux headers

if test "$linux" = "yes" ; then