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dnl This Source Code Form is subject to the terms of the Mozilla Public
dnl License, v. 2.0. If a copy of the MPL was not distributed with this
dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
AC_DEFUN([MOZ_CONFIG_SANITIZE], [
dnl ========================================================
dnl = Use Address Sanitizer
dnl ========================================================
if test -n "$MOZ_ASAN"; then
if test -n "$CLANG_CL"; then
# Look for the ASan runtime binary
if test "$TARGET_CPU" = "x86_64"; then
MOZ_CLANG_RT_ASAN_LIB=clang_rt.asan_dynamic-x86_64.dll
else
MOZ_CLANG_RT_ASAN_LIB=clang_rt.asan_dynamic-i386.dll
fi
# We use MOZ_PATH_PROG in order to get a Windows style path.
MOZ_PATH_PROG(MOZ_CLANG_RT_ASAN_LIB_PATH, $MOZ_CLANG_RT_ASAN_LIB)
if test -z "$MOZ_CLANG_RT_ASAN_LIB_PATH"; then
AC_MSG_ERROR([Couldn't find $MOZ_CLANG_RT_ASAN_LIB. It should be available in the same location as clang-cl.])
fi
AC_SUBST(MOZ_CLANG_RT_ASAN_LIB_PATH)
# Suppressing errors in recompiled code.
if test "$OS_ARCH" = "WINNT"; then
CFLAGS="-fsanitize-blacklist=$_topsrcdir/build/sanitizers/asan_blacklist_win.txt $CFLAGS"
CXXFLAGS="-fsanitize-blacklist=$_topsrcdir/build/sanitizers/asan_blacklist_win.txt $CXXFLAGS"
fi
fi
ASAN_FLAGS="-fsanitize=address"
if test "$OS_TARGET" = Linux; then
# -fno-sanitize-address-globals-dead-stripping is used to work around
# https://github.com/rust-lang/rust/issues/113404
# It forces clang not to use __asan_register_elf_globals/__asan_globals_registered,
# avoiding the conflict with rust.
ASAN_FLAGS="$ASAN_FLAGS -fno-sanitize-address-globals-dead-stripping"
fi
CFLAGS="$ASAN_FLAGS $CFLAGS"
CXXFLAGS="$ASAN_FLAGS $CXXFLAGS"
if test -z "$CLANG_CL"; then
LDFLAGS="-fsanitize=address -rdynamic $LDFLAGS"
fi
AC_DEFINE(MOZ_ASAN)
MOZ_PATH_PROG(LLVM_SYMBOLIZER, llvm-symbolizer)
fi
AC_SUBST(MOZ_ASAN)
dnl ========================================================
dnl = Use Memory Sanitizer
dnl ========================================================
if test -n "$MOZ_MSAN"; then
CFLAGS="-fsanitize=memory -fsanitize-memory-track-origins $CFLAGS"
CXXFLAGS="-fsanitize=memory -fsanitize-memory-track-origins $CXXFLAGS"
if test -z "$CLANG_CL"; then
LDFLAGS="-fsanitize=memory -fsanitize-memory-track-origins -rdynamic $LDFLAGS"
fi
AC_DEFINE(MOZ_MSAN)
MOZ_PATH_PROG(LLVM_SYMBOLIZER, llvm-symbolizer)
fi
AC_SUBST(MOZ_MSAN)
dnl ========================================================
dnl = Use Thread Sanitizer
dnl ========================================================
if test -n "$MOZ_TSAN"; then
CFLAGS="-fsanitize=thread $CFLAGS"
CXXFLAGS="-fsanitize=thread $CXXFLAGS"
if test -z "$CLANG_CL"; then
LDFLAGS="-fsanitize=thread -rdynamic $LDFLAGS"
fi
AC_DEFINE(MOZ_TSAN)
MOZ_PATH_PROG(LLVM_SYMBOLIZER, llvm-symbolizer)
fi
AC_SUBST(MOZ_TSAN)
dnl ========================================================
dnl = Use UndefinedBehavior Sanitizer (with custom checks)
dnl ========================================================
if test -n "$MOZ_UBSAN_CHECKS"; then
MOZ_UBSAN=1
UBSAN_TXT="$_objdir/ubsan_blacklist.txt"
cat $_topsrcdir/build/sanitizers/ubsan_*_blacklist.txt > $UBSAN_TXT
UBSAN_FLAGS="-fsanitize=$MOZ_UBSAN_CHECKS -fno-sanitize-recover=$MOZ_UBSAN_CHECKS -fsanitize-blacklist=$UBSAN_TXT"
CFLAGS="$UBSAN_FLAGS $CFLAGS"
CXXFLAGS="$UBSAN_FLAGS $CXXFLAGS"
if test -z "$CLANG_CL"; then
LDFLAGS="-fsanitize=undefined -rdynamic $LDFLAGS"
fi
AC_DEFINE(MOZ_UBSAN)
MOZ_PATH_PROG(LLVM_SYMBOLIZER, llvm-symbolizer)
fi
AC_SUBST(MOZ_UBSAN)
dnl ========================================================
dnl = Use UndefinedBehavior Sanitizer to find integer overflows
dnl ========================================================
if test -n "$MOZ_SIGNED_OVERFLOW_SANITIZE$MOZ_UNSIGNED_OVERFLOW_SANITIZE"; then
MOZ_UBSAN=1
SANITIZER_BLACKLISTS=""
if test -n "$MOZ_SIGNED_OVERFLOW_SANITIZE"; then
SANITIZER_BLACKLISTS="-fsanitize-blacklist=$_topsrcdir/build/sanitizers/ubsan_signed_overflow_blacklist.txt $SANITIZER_BLACKLISTS"
CFLAGS="-fsanitize=signed-integer-overflow $CFLAGS"
CXXFLAGS="-fsanitize=signed-integer-overflow $CXXFLAGS"
if test -z "$CLANG_CL"; then
LDFLAGS="-fsanitize=signed-integer-overflow -rdynamic $LDFLAGS"
fi
AC_DEFINE(MOZ_SIGNED_OVERFLOW_SANITIZE)
fi
if test -n "$MOZ_UNSIGNED_OVERFLOW_SANITIZE"; then
SANITIZER_BLACKLISTS="-fsanitize-blacklist=$_topsrcdir/build/sanitizers/ubsan_unsigned_overflow_blacklist.txt $SANITIZER_BLACKLISTS"
CFLAGS="-fsanitize=unsigned-integer-overflow $CFLAGS"
CXXFLAGS="-fsanitize=unsigned-integer-overflow $CXXFLAGS"
if test -z "$CLANG_CL"; then
LDFLAGS="-fsanitize=unsigned-integer-overflow -rdynamic $LDFLAGS"
fi
AC_DEFINE(MOZ_UNSIGNED_OVERFLOW_SANITIZE)
fi
CFLAGS="$SANITIZER_BLACKLISTS $CFLAGS"
CXXFLAGS="$SANITIZER_BLACKLISTS $CXXFLAGS"
AC_DEFINE(MOZ_UBSAN)
MOZ_PATH_PROG(LLVM_SYMBOLIZER, llvm-symbolizer)
fi
AC_SUBST(MOZ_SIGNED_OVERFLOW_SANITIZE)
AC_SUBST(MOZ_UNSIGNED_OVERFLOW_SANITIZE)
AC_SUBST(MOZ_UBSAN)
dnl =======================================================
dnl = Required for stand-alone (sanitizer-less) libFuzzer.
dnl =======================================================
if test -n "$LIBFUZZER"; then
LDFLAGS="$LIBFUZZER_FLAGS -rdynamic $LDFLAGS"
fi
# The LLVM symbolizer is used by all sanitizers
AC_SUBST(LLVM_SYMBOLIZER)
dnl ========================================================
dnl = Test for whether the compiler is compatible with the
dnl = given sanitize options.
dnl ========================================================
AC_TRY_LINK(,,,AC_MSG_ERROR([compiler is incompatible with sanitize options]))
])
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