1PHP_ARG_ENABLE([fuzzer], 2 [for Clang fuzzer SAPI], 3 [AS_HELP_STRING([--enable-fuzzer], 4 [Build PHP as Clang fuzzing test module (for developers)])], 5 [no], 6 [no]) 7 8dnl For newer Clang versions see https://llvm.org/docs/LibFuzzer.html#fuzzer-usage 9dnl for relevant flags. 10 11dnl 12dnl PHP_FUZZER_TARGET(name, target-var) 13dnl 14dnl Macro to define the fuzzing target. 15dnl 16AC_DEFUN([PHP_FUZZER_TARGET], [ 17 PHP_FUZZER_BINARIES="$PHP_FUZZER_BINARIES $SAPI_FUZZER_PATH/php-fuzz-$1" 18 PHP_SUBST([$2]) 19 PHP_ADD_SOURCES_X([sapi/fuzzer], [fuzzer-$1.c], [], [$2]) 20 $2="[$]$2 $FUZZER_COMMON_OBJS" 21]) 22 23if test "$PHP_FUZZER" != "no"; then 24 AS_VAR_IF([enable_zts], [yes], [AC_MSG_ERROR(m4_text_wrap([ 25 Thread safety (--enable-zts) is not supported when building fuzzing module 26 (--enable-fuzzer). Please build fuzzer without ZTS. 27 ]))]) 28 29 dnl Don't use PHP_REQUIRE_CXX() to avoid unnecessarily pulling in -lstdc++ 30 AC_PROG_CXX 31 AC_PROG_CXXCPP 32 PHP_ADD_MAKEFILE_FRAGMENT([$abs_srcdir/sapi/fuzzer/Makefile.frag]) 33 SAPI_FUZZER_PATH=sapi/fuzzer 34 PHP_SUBST([SAPI_FUZZER_PATH]) 35 AS_VAR_IF([LIB_FUZZING_ENGINE],, [ 36 FUZZING_LIB="-fsanitize=fuzzer" 37 FUZZING_CC=$CC 38 AX_CHECK_COMPILE_FLAG([-fsanitize=fuzzer-no-link], [ 39 CFLAGS="$CFLAGS -fsanitize=fuzzer-no-link" 40 CXXFLAGS="$CXXFLAGS -fsanitize=fuzzer-no-link" 41 ], 42 [AC_MSG_ERROR([Compiler doesn't support -fsanitize=fuzzer-no-link])]) 43 ], [ 44 FUZZING_LIB=$LIB_FUZZING_ENGINE 45 FUZZING_CC="$CXX -stdlib=libc++" 46 ]) 47 PHP_SUBST([FUZZING_LIB]) 48 PHP_SUBST([FUZZING_CC]) 49 50 dnl PHP_SELECT_SAPI([fuzzer-parser], [program], [$FUZZER_SOURCES]) 51 52 PHP_ADD_BUILD_DIR([sapi/fuzzer]) 53 PHP_FUZZER_BINARIES="" 54 PHP_BINARIES="$PHP_BINARIES fuzzer" 55 PHP_INSTALLED_SAPIS="$PHP_INSTALLED_SAPIS fuzzer" 56 57 PHP_ADD_SOURCES_X([sapi/fuzzer], [fuzzer-sapi.c], [], [FUZZER_COMMON_OBJS]) 58 59 PHP_FUZZER_TARGET([parser], [PHP_FUZZER_PARSER_OBJS]) 60 PHP_FUZZER_TARGET([execute], [PHP_FUZZER_EXECUTE_OBJS]) 61 PHP_FUZZER_TARGET([function-jit], [PHP_FUZZER_FUNCTION_JIT_OBJS]) 62 PHP_FUZZER_TARGET([tracing-jit], [PHP_FUZZER_TRACING_JIT_OBJS]) 63 PHP_FUZZER_TARGET([unserialize], [PHP_FUZZER_UNSERIALIZE_OBJS]) 64 PHP_FUZZER_TARGET([unserializehash], [PHP_FUZZER_UNSERIALIZEHASH_OBJS]) 65 PHP_FUZZER_TARGET([json], [PHP_FUZZER_JSON_OBJS]) 66 67 if test -n "$enable_exif" && test "$enable_exif" != "no"; then 68 PHP_FUZZER_TARGET([exif], [PHP_FUZZER_EXIF_OBJS]) 69 fi 70 if test -n "$enable_mbstring" && test "$enable_mbstring" != "no"; then 71 PHP_FUZZER_TARGET([mbstring], [PHP_FUZZER_MBSTRING_OBJS]) 72 if test -n "$enable_mbregex" && test "$enable_mbregex" != "no"; then 73 PHP_FUZZER_TARGET([mbregex], [PHP_FUZZER_MBREGEX_OBJS]) 74 fi 75 fi 76 77 PHP_SUBST([PHP_FUZZER_BINARIES]) 78fi 79
