diff options
| -rw-r--r-- | configure.seed | 13 | ||||
| -rw-r--r-- | m4/ax_check_compile_flag.m4 | 53 |
2 files changed, 60 insertions, 6 deletions
diff --git a/configure.seed b/configure.seed index 250a762b5..3c5602f2d 100644 --- a/configure.seed +++ b/configure.seed @@ -4,13 +4,11 @@ AC_CONFIG_MACRO_DIR([m4]) AM_INIT_AUTOMAKE([foreign subdir-objects]) -AC_ARG_WITH(llvm_sanitizer, [ --with-llvm-sanitizer Build with support for the LLVM address sanitizer]) +AC_ARG_WITH(sanitizer, [ --with-sanitizer Build with support for address, undefined and leak sanitizer]) -AS_IF([test "${with_llvm_sanitizer+set}" = set],[ - CFLAGS="${CFLAGS} -g -O2 -Wno-unused-value -fsanitize=address -fno-omit-frame-pointer" - LDFLAGS="${LDFLAGS} -fsanitize=address" - CC=clang - CXX=clang++ +AS_IF([test "${with_sanitizer+set}" = set],[ + CFLAGS="${CFLAGS} -g3 -O0 -Wno-unused-value -fsanitize=address -fsanitize=undefined -fno-sanitize=alignment -fno-sanitize=shift -fsanitize=leak -fno-omit-frame-pointer" + LDFLAGS="${LDFLAGS} -fsanitize=address -fsanitize=undefined -fno-sanitize=alignment -fno-sanitize=shift -fsanitize=leak" ]) LT_INIT @@ -130,6 +128,9 @@ AS_IF([test "x$enable_fuzztargets" = "xyes"], [ AC_PROG_CXX AC_LANG_PUSH(C++) tmp_saved_flags=$[]_AC_LANG_PREFIX[]FLAGS + AX_CHECK_COMPILE_FLAG([-fsanitize=fuzzer],, + [AC_MSG_ERROR([--enable-fuzztargets requires -fsanitize=fuzzer which is only supported by LLVM])], + [-Werror]) AS_IF([test "x$LIB_FUZZING_ENGINE" = "x"], [ LIB_FUZZING_ENGINE=-fsanitize=fuzzer AC_SUBST(LIB_FUZZING_ENGINE) diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4 new file mode 100644 index 000000000..bd753b34d --- /dev/null +++ b/m4/ax_check_compile_flag.m4 @@ -0,0 +1,53 @@ +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT]) +# +# DESCRIPTION +# +# Check whether the given FLAG works with the current language's compiler +# or gives an error. (Warnings, however, are ignored) +# +# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on +# success/failure. +# +# If EXTRA-FLAGS is defined, it is added to the current language's default +# flags (e.g. CFLAGS) when the check is done. The check is thus made with +# the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to +# force the compiler to issue an error when a bad flag is given. +# +# INPUT gives an alternative input source to AC_COMPILE_IFELSE. +# +# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this +# macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG. +# +# LICENSE +# +# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de> +# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com> +# +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. + +#serial 6 + +AC_DEFUN([AX_CHECK_COMPILE_FLAG], +[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF +AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl +AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ + ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS + _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1" + AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], + [AS_VAR_SET(CACHEVAR,[yes])], + [AS_VAR_SET(CACHEVAR,[no])]) + _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags]) +AS_VAR_IF(CACHEVAR,yes, + [m4_default([$2], :)], + [m4_default([$3], :)]) +AS_VAR_POPDEF([CACHEVAR])dnl +])dnl AX_CHECK_COMPILE_FLAGS |