http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53621
chrbr at gcc dot gnu.org changed:
What |Removed |Added
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CC| |chrbr at gcc dot gnu.org
--- Comment #5 from chrbr at gcc dot gnu.org 2012-06-11 13:48:50 UTC ---
I think this used to work, but the option initialization mechanism has changed
recently indeed.
Disabling it could break some supports for gprof or some old fashioned
unwinders that need a frame pointer
looking at the configure, it looks like there is no sh target using a different
setting for DWARF2_DEBUG. So this line could probably just be removed from
here.
If an hypothetical target doesn't use DWARF2_DEBUG then maybe it should define
SUBTARGET_FRAME_POINTER_REQUIRED to force it.
I suspect that a definition like could be needed.
#undef SUBTARGET_FRAME_POINTER_REQUIRED
#define SUBTARGET_FRAME_POINTER_REQUIRED crtl->profile
We need to check in which extend the current gprof is broken without a frame
pointer.
