diff options
| -rw-r--r-- | configure.ac | 14 | ||||
| -rw-r--r-- | m4/as-compiler-flag.m4 | 62 | ||||
| -rw-r--r-- | tests/Makefile.am | 2 |
3 files changed, 77 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index b9ecef8d..51595ade 100644 --- a/configure.ac +++ b/configure.ac @@ -196,6 +196,19 @@ if test "x$with_libunwind" = xyes; then AC_MSG_ERROR([libunwind not found. Use --without-libunwind to disable libunwind support.])) fi +# enable debug symbols +AC_ARG_ENABLE(debug, + AS_HELP_STRING([--disable-debug], + [Build tests without debug symbols]), + [], [enable_debug=yes]) + +if test "x$enable_debug" = xyes; then + AS_COMPILER_FLAG([-g3], [DEBUG_CFLAGS="-g3"], [DEBUG_CFLAGS="-g"]) + AS_COMPILER_FLAG([-Og], [DEBUG_CFLAGS+=" -Og -Wno-maybe-uninitialized"], # disable maybe-uninitialized due to false positives + [DEBUG_CFLAGS+=" -O0"]) + AC_SUBST([DEBUG_CFLAGS]) +fi + # ----------------------------------------------------------------------------- # To build multithread code, gcc uses -pthread, Solaris Studio cc uses -mt @@ -253,6 +266,7 @@ echo " • Tests:" echo " Build tests : ${BUILD_TESTS}" echo " Compile prime tests: ${NOUVEAU}" echo " Print stack traces : ${with_libunwind}" +echo " Debug flags : ${DEBUG_CFLAGS}" echo "" echo " • Tools:" echo " Assembler : ${enable_assembler}" diff --git a/m4/as-compiler-flag.m4 b/m4/as-compiler-flag.m4 new file mode 100644 index 00000000..0f660cf0 --- /dev/null +++ b/m4/as-compiler-flag.m4 @@ -0,0 +1,62 @@ +dnl as-compiler-flag.m4 0.1.0 + +dnl autostars m4 macro for detection of compiler flags + +dnl David Schleef <ds@schleef.org> + +dnl $Id: as-compiler-flag.m4,v 1.1 2005/12/15 23:35:19 ds Exp $ + +dnl AS_COMPILER_FLAG(CFLAGS, ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED]) +dnl Tries to compile with the given CFLAGS. +dnl Runs ACTION-IF-ACCEPTED if the compiler can compile with the flags, +dnl and ACTION-IF-NOT-ACCEPTED otherwise. + +AC_DEFUN([AS_COMPILER_FLAG], +[ + AC_MSG_CHECKING([to see if compiler understands $1]) + + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $1" + + AC_TRY_COMPILE([ ], [], [flag_ok=yes], [flag_ok=no]) + CFLAGS="$save_CFLAGS" + + if test "X$flag_ok" = Xyes ; then + m4_ifvaln([$2],[$2]) + true + else + m4_ifvaln([$3],[$3]) + true + fi + AC_MSG_RESULT([$flag_ok]) +]) + +dnl AS_COMPILER_FLAGS(VAR, FLAGS) +dnl Tries to compile with the given CFLAGS. + +AC_DEFUN([AS_COMPILER_FLAGS], +[ + list=$2 + flags_supported="" + flags_unsupported="" + AC_MSG_CHECKING([for supported compiler flags]) + for each in $list + do + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $each" + AC_TRY_COMPILE([ ], [], [flag_ok=yes], [flag_ok=no]) + CFLAGS="$save_CFLAGS" + + if test "X$flag_ok" = Xyes ; then + flags_supported="$flags_supported $each" + else + flags_unsupported="$flags_unsupported $each" + fi + done + AC_MSG_RESULT([$flags_supported]) + if test "X$flags_unsupported" != X ; then + AC_MSG_WARN([unsupported compiler flags: $flags_unsupported]) + fi + $1="$$1 $flags_supported" +]) + diff --git a/tests/Makefile.am b/tests/Makefile.am index 93f41ba9..f45c6c94 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -32,7 +32,7 @@ EXTRA_DIST = $(TESTS_scripts) $(TESTS_scripts_M) $(scripts) $(IMAGES) $(common_f CLEANFILES = $(EXTRA_PROGRAMS) single-tests.txt multi-tests.txt -AM_CFLAGS = $(DRM_CFLAGS) $(CWARNFLAGS) \ +AM_CFLAGS = $(DRM_CFLAGS) $(CWARNFLAGS) $(DEBUG_CFLAGS)\ -I$(srcdir)/.. \ -I$(srcdir)/../lib \ -include "$(srcdir)/../lib/check-ndebug.h" \ |