1AC_MSG_CHECKING(for clang fuzzer SAPI) 2 3PHP_ARG_ENABLE([fuzzer],, 4 [AS_HELP_STRING([--enable-fuzzer], 5 [Build PHP as clang fuzzing test module (for developers)])], 6 [no], 7 [no]) 8 9dnl For newer clang versions see https://llvm.org/docs/LibFuzzer.html#fuzzer-usage 10dnl for relevant flags. 11 12dnl Macro to define fuzzing target 13dnl PHP_FUZZER_TARGET(name, target-var) 14dnl 15AC_DEFUN([PHP_FUZZER_TARGET], [ 16 PHP_FUZZER_BINARIES="$PHP_FUZZER_BINARIES $SAPI_FUZZER_PATH/php-fuzz-$1" 17 PHP_SUBST($2) 18 PHP_ADD_SOURCES_X([sapi/fuzzer],[fuzzer-$1.c],[],$2) 19 $2="[$]$2 $FUZZER_COMMON_OBJS" 20]) 21 22if test "$PHP_FUZZER" != "no"; then 23 AC_MSG_RESULT([yes]) 24 dnl Don't use PHP_REQUIRE_CXX() to avoid unnecessarily pulling in -lstdc++ 25 AC_PROG_CXX 26 AC_PROG_CXXCPP 27 PHP_ADD_MAKEFILE_FRAGMENT($abs_srcdir/sapi/fuzzer/Makefile.frag) 28 SAPI_FUZZER_PATH=sapi/fuzzer 29 PHP_SUBST(SAPI_FUZZER_PATH) 30 if test -z "$LIB_FUZZING_ENGINE"; then 31 FUZZING_LIB="-fsanitize=fuzzer" 32 FUZZING_CC="$CC" 33 AX_CHECK_COMPILE_FLAG([-fsanitize=fuzzer-no-link], [ 34 CFLAGS="$CFLAGS -fsanitize=fuzzer-no-link" 35 CXXFLAGS="$CXXFLAGS -fsanitize=fuzzer-no-link" 36 ],[ 37 AC_MSG_ERROR(Compiler doesn't support -fsanitize=fuzzer-no-link) 38 ]) 39 else 40 FUZZING_LIB="$LIB_FUZZING_ENGINE" 41 FUZZING_CC="$CXX -stdlib=libc++" 42 fi 43 PHP_SUBST(FUZZING_LIB) 44 PHP_SUBST(FUZZING_CC) 45 46 dnl PHP_SELECT_SAPI(fuzzer-parser, program, $FUZZER_SOURCES, , '$(SAPI_FUZZER_PATH)') 47 48 PHP_ADD_BUILD_DIR([sapi/fuzzer]) 49 PHP_FUZZER_BINARIES="" 50 PHP_BINARIES="$PHP_BINARIES fuzzer" 51 PHP_INSTALLED_SAPIS="$PHP_INSTALLED_SAPIS fuzzer" 52 53 PHP_ADD_SOURCES_X([sapi/fuzzer], [fuzzer-sapi.c], [], FUZZER_COMMON_OBJS) 54 55 PHP_FUZZER_TARGET([parser], PHP_FUZZER_PARSER_OBJS) 56 PHP_FUZZER_TARGET([execute], PHP_FUZZER_EXECUTE_OBJS) 57 PHP_FUZZER_TARGET([function-jit], PHP_FUZZER_FUNCTION_JIT_OBJS) 58 PHP_FUZZER_TARGET([tracing-jit], PHP_FUZZER_TRACING_JIT_OBJS) 59 PHP_FUZZER_TARGET([unserialize], PHP_FUZZER_UNSERIALIZE_OBJS) 60 PHP_FUZZER_TARGET([unserializehash], PHP_FUZZER_UNSERIALIZEHASH_OBJS) 61 PHP_FUZZER_TARGET([json], PHP_FUZZER_JSON_OBJS) 62 63 if test -n "$enable_exif" && test "$enable_exif" != "no"; then 64 PHP_FUZZER_TARGET([exif], PHP_FUZZER_EXIF_OBJS) 65 fi 66 if test -n "$enable_mbstring" && test "$enable_mbstring" != "no"; then 67 PHP_FUZZER_TARGET([mbstring], PHP_FUZZER_MBSTRING_OBJS) 68 if test -n "$enable_mbregex" && test "$enable_mbregex" != "no"; then 69 PHP_FUZZER_TARGET([mbregex], PHP_FUZZER_MBREGEX_OBJS) 70 fi 71 fi 72 73 PHP_SUBST(PHP_FUZZER_BINARIES) 74fi 75 76AC_MSG_RESULT($PHP_FUZZER) 77
