| PHP_ARG_ENABLE([fuzzer], | |
| [for Clang fuzzer SAPI], | |
| [AS_HELP_STRING([--enable-fuzzer], | |
| [Build PHP as Clang fuzzing test module (for developers)])], | |
| [no], | |
| [no]) | |
| dnl For newer Clang versions see https://llvm.org/docs/LibFuzzer.html#fuzzer-usage | |
| dnl for relevant flags. | |
| dnl | |
| dnl PHP_FUZZER_TARGET(name, target-var) | |
| dnl | |
| dnl Macro to define the fuzzing target. | |
| dnl | |
| AC_DEFUN([PHP_FUZZER_TARGET], [ | |
| PHP_FUZZER_BINARIES="$PHP_FUZZER_BINARIES $SAPI_FUZZER_PATH/php-fuzz-$1" | |
| PHP_SUBST([$2]) | |
| PHP_ADD_SOURCES_X([sapi/fuzzer], [fuzzer-$1.c], [], [$2]) | |
| $2="[$]$2 $FUZZER_COMMON_OBJS" | |
| ]) | |
| if test "$PHP_FUZZER" != "no"; then | |
| AS_VAR_IF([enable_zts], [yes], [AC_MSG_ERROR(m4_text_wrap([ | |
| Thread safety (--enable-zts) is not supported when building fuzzing module | |
| (--enable-fuzzer). Please build fuzzer without ZTS. | |
| ]))]) | |
| dnl Don't use PHP_REQUIRE_CXX() to avoid unnecessarily pulling in -lstdc++ | |
| AC_PROG_CXX | |
| AC_PROG_CXXCPP | |
| PHP_ADD_MAKEFILE_FRAGMENT([$abs_srcdir/sapi/fuzzer/Makefile.frag]) | |
| SAPI_FUZZER_PATH=sapi/fuzzer | |
| PHP_SUBST([SAPI_FUZZER_PATH]) | |
| AS_VAR_IF([LIB_FUZZING_ENGINE],, [ | |
| FUZZING_LIB="-fsanitize=fuzzer" | |
| FUZZING_CC=$CC | |
| AX_CHECK_COMPILE_FLAG([-fsanitize=fuzzer-no-link], [ | |
| CFLAGS="$CFLAGS -fsanitize=fuzzer-no-link" | |
| CXXFLAGS="$CXXFLAGS -fsanitize=fuzzer-no-link" | |
| ], | |
| [AC_MSG_ERROR([Compiler doesn't support -fsanitize=fuzzer-no-link])]) | |
| ], [ | |
| FUZZING_LIB=$LIB_FUZZING_ENGINE | |
| FUZZING_CC="$CXX -stdlib=libc++" | |
| ]) | |
| PHP_SUBST([FUZZING_LIB]) | |
| PHP_SUBST([FUZZING_CC]) | |
| dnl PHP_SELECT_SAPI([fuzzer-parser], [program], [$FUZZER_SOURCES]) | |
| PHP_ADD_BUILD_DIR([sapi/fuzzer]) | |
| PHP_FUZZER_BINARIES="" | |
| PHP_BINARIES="$PHP_BINARIES fuzzer" | |
| PHP_INSTALLED_SAPIS="$PHP_INSTALLED_SAPIS fuzzer" | |
| PHP_ADD_SOURCES_X([sapi/fuzzer], [fuzzer-sapi.c], [], [FUZZER_COMMON_OBJS]) | |
| PHP_FUZZER_TARGET([parser], [PHP_FUZZER_PARSER_OBJS]) | |
| PHP_FUZZER_TARGET([execute], [PHP_FUZZER_EXECUTE_OBJS]) | |
| PHP_FUZZER_TARGET([function-jit], [PHP_FUZZER_FUNCTION_JIT_OBJS]) | |
| PHP_FUZZER_TARGET([tracing-jit], [PHP_FUZZER_TRACING_JIT_OBJS]) | |
| PHP_FUZZER_TARGET([unserialize], [PHP_FUZZER_UNSERIALIZE_OBJS]) | |
| PHP_FUZZER_TARGET([unserializehash], [PHP_FUZZER_UNSERIALIZEHASH_OBJS]) | |
| PHP_FUZZER_TARGET([json], [PHP_FUZZER_JSON_OBJS]) | |
| if test -n "$enable_exif" && test "$enable_exif" != "no"; then | |
| PHP_FUZZER_TARGET([exif], [PHP_FUZZER_EXIF_OBJS]) | |
| fi | |
| if test -n "$enable_mbstring" && test "$enable_mbstring" != "no"; then | |
| PHP_FUZZER_TARGET([mbstring], [PHP_FUZZER_MBSTRING_OBJS]) | |
| if test -n "$enable_mbregex" && test "$enable_mbregex" != "no"; then | |
| PHP_FUZZER_TARGET([mbregex], [PHP_FUZZER_MBREGEX_OBJS]) | |
| fi | |
| fi | |
| PHP_SUBST([PHP_FUZZER_BINARIES]) | |
| fi | |