diff options
| author | Evan Klitzke <evan@eklitzke.org> | 2018-03-14 20:07:16 -0700 |
|---|---|---|
| committer | Evan Klitzke <evan@eklitzke.org> | 2018-03-28 12:33:04 -0700 |
| commit | 6feb46c3721605f6ae54d7e635a06f82cd7c1449 (patch) | |
| tree | 42f35d8407161c335b1d0e23065dc0d2e4dcebf6 /configure.ac | |
| parent | 0a018431c447bbf18bdaa6a1037aad6a87c1294a (diff) | |
Add --with-sanitizers option to configure
This enables the use of different compiler sanitizers, coresponding to
the -fsanitize option in GCC and Clang.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 4f57750a1a..c422914a26 100644 --- a/configure.ac +++ b/configure.ac @@ -219,6 +219,12 @@ AC_ARG_ENABLE([debug], [enable_debug=$enableval], [enable_debug=no]) +# Enable different -fsanitize options +AC_ARG_WITH([sanitizers], + [AS_HELP_STRING([--with-sanitizers], + [comma separated list of extra sanitizers to build with (default is none enabled)])], + [use_sanitizers=$withval]) + # Enable gprof profiling AC_ARG_ENABLE([gprof], [AS_HELP_STRING([--enable-gprof], @@ -247,6 +253,26 @@ if test "x$enable_debug" = xyes; then fi fi +if test x$use_sanitizers != x; then + # First check if the compiler accepts flags. If an incompatible pair like + # -fsanitize=address,thread is used here, this check will fail. This will also + # fail if a bad argument is passed, e.g. -fsanitize=undfeined + AX_CHECK_COMPILE_FLAG( + [[-fsanitize=$use_sanitizers]], + [[SANITIZER_CXXFLAGS=-fsanitize=$use_sanitizers]], + [AC_MSG_ERROR([compiler did not accept requested flags])]) + + # Some compilers (e.g. GCC) require additional libraries like libasan, + # libtsan, libubsan, etc. Make sure linking still works with the sanitize + # flag. This is a separate check so we can give a better error message when + # the sanitize flags are supported by the compiler but the actual sanitizer + # libs are missing. + AX_CHECK_LINK_FLAG( + [[-fsanitize=$use_sanitizers]], + [[SANITIZER_LDFLAGS=-fsanitize=$use_sanitizers]], + [AC_MSG_ERROR([linker did not accept requested flags, you are missing required libraries])]) +fi + ERROR_CXXFLAGS= if test "x$enable_werror" = "xyes"; then if test "x$CXXFLAG_WERROR" = "x"; then @@ -1258,6 +1284,8 @@ AC_SUBST(HARDENED_CPPFLAGS) AC_SUBST(HARDENED_LDFLAGS) AC_SUBST(PIC_FLAGS) AC_SUBST(PIE_FLAGS) +AC_SUBST(SANITIZER_CXXFLAGS) +AC_SUBST(SANITIZER_LDFLAGS) AC_SUBST(SSE42_CXXFLAGS) AC_SUBST(LIBTOOL_APP_LDFLAGS) AC_SUBST(USE_UPNP) |