diff options
| -rwxr-xr-x | configure | 15 |
1 files changed, 12 insertions, 3 deletions
@@ -226,16 +226,25 @@ test "x$debug" = xyes && CFLAGS_AUTO="-g" tryflag CFLAGS_AUTO -pipe # -# If debugging is disabled, omit bloated DWARF2 unwind tables & frame ptr +# If debugging is disabled, omit frame pointer. Modern GCC does this +# anyway on most archs even when debugging is enabled since the frame +# pointer is no longer needed for debugging. # if fnmatch '-g*|*\ -g*' "$CFLAGS_AUTO $CFLAGS" ; then : else -tryflag CFLAGS_AUTO -fno-unwind-tables -tryflag CFLAGS_AUTO -fno-asynchronous-unwind-tables tryflag CFLAGS_AUTO -fomit-frame-pointer fi # +# Modern GCC wants to put DWARF tables (used for debugging and +# unwinding) in the loaded part of the program where they are +# unstrippable. These options force them back to debug sections (and +# cause them not to get generated at all if debugging is off). +# +tryflag CFLAGS_AUTO -fno-unwind-tables +tryflag CFLAGS_AUTO -fno-asynchronous-unwind-tables + +# # Some optimization levels add bloated alignment that hurt performance # tryflag CFLAGS_AUTO -falign-functions=1 |