diff options
| author | Evan Klitzke <evan@eklitzke.org> | 2018-03-15 05:05:48 -0700 |
|---|---|---|
| committer | practicalswift <practicalswift@users.noreply.github.com> | 2018-04-17 10:37:43 +0200 |
| commit | 9e49db2426cd4508d9dd95c7461e107bab7fd7de (patch) | |
| tree | 293a8b4baabcb34b6c6c36295598bf6bf2123b1f /configure.ac | |
| parent | 07825088f9cfd8abece774b9d978c36ab90ce3d1 (diff) | |
| download | bitcoin-9e49db2426cd4508d9dd95c7461e107bab7fd7de.tar.xz | |
Make --enable-debug to pick better options
Various changes:
* Don't check $GCC and $GXX
* Prefer -Og instead of -O0
* If -g3 isn't available, use -g
This also incidentally fixes compiler warnings with GCC and glibc when using
--enable-debug, as the old default values mixed poorly with the hardening flags.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/configure.ac b/configure.ac index b38e480f27..03e024128a 100644 --- a/configure.ac +++ b/configure.ac @@ -243,14 +243,22 @@ AC_LANG_PUSH([C++]) AX_CHECK_COMPILE_FLAG([-Werror],[CXXFLAG_WERROR="-Werror"],[CXXFLAG_WERROR=""]) if test "x$enable_debug" = xyes; then - CPPFLAGS="$CPPFLAGS -DDEBUG -DDEBUG_LOCKORDER" - if test "x$GCC" = xyes; then - CFLAGS="$CFLAGS -g3 -O0" - fi + # Prefer -Og, fall back to -O0 if that is unavailable. + AX_CHECK_COMPILE_FLAG( + [-Og], + [[DEBUG_CXXFLAGS="$DEBUG_CXXFLAGS -Og"]], + [AX_CHECK_COMPILE_FLAG([-O0],[[DEBUG_CXXFLAGS="$DEBUG_CXXFLAGS -O0"]],,[[$CXXFLAG_WERROR]])], + [[$CXXFLAG_WERROR]]) - if test "x$GXX" = xyes; then - CXXFLAGS="$CXXFLAGS -g3 -O0" - fi + # Prefer -g3, fall back to -g if that is unavailable. + AX_CHECK_COMPILE_FLAG( + [-g3], + [[DEBUG_CXXFLAGS="$DEBUG_CXXFLAGS -g3"]], + [AX_CHECK_COMPILE_FLAG([-g],[[DEBUG_CXXFLAGS="$DEBUG_CXXFLAGS -g"]],,[[$CXXFLAG_WERROR]])], + [[$CXXFLAG_WERROR]]) + + AX_CHECK_PREPROC_FLAG([-DDEBUG],[[DEBUG_CPPFLAGS="$DEBUG_CPPFLAGS -DDEBUG"]],,[[$CXXFLAG_WERROR]]) + AX_CHECK_PREPROC_FLAG([-DDEBUG_LOCKORDER],[[DEBUG_CPPFLAGS="$DEBUG_CPPFLAGS -DDEBUG_LOCKORDER"]],,[[$CXXFLAG_WERROR]]) fi if test x$use_sanitizers != x; then @@ -1276,6 +1284,8 @@ AC_SUBST(BITCOIN_CLI_NAME) AC_SUBST(BITCOIN_TX_NAME) AC_SUBST(RELDFLAGS) +AC_SUBST(DEBUG_CPPFLAGS) +AC_SUBST(DEBUG_CXXFLAGS) AC_SUBST(ERROR_CXXFLAGS) AC_SUBST(GPROF_CXXFLAGS) AC_SUBST(GPROF_LDFLAGS) @@ -1383,9 +1393,9 @@ echo " build os = $BUILD_OS" echo echo " CC = $CC" echo " CFLAGS = $CFLAGS" -echo " CPPFLAGS = $CPPFLAGS" +echo " CPPFLAGS = $DEBUG_CPPFLAGS $HARDENED_CPPFLAGS $CPPFLAGS" echo " CXX = $CXX" -echo " CXXFLAGS = $CXXFLAGS" -echo " LDFLAGS = $LDFLAGS" +echo " CXXFLAGS = $DEBUG_CXXFLAGS $HARDENED_CXXFLAGS $ERROR_CXXFLAGS $GPROF_CXXFLAGS $CXXFLAGS" +echo " LDFLAGS = $PTHREAD_CFLAGS $HARDENED_LDFLAGS $GPROF_LDFLAGS $LDFLAGS" echo " ARFLAGS = $ARFLAGS" echo |