On 19.01.2016 14:52, Nick Clifton wrote:
Hi Catherine, Hi Eric, Hi Matthew,
GCC PR 69129 reports a problem with the MIPS backend:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69129
I traced the problem down to a race condition in
mips_compute_frame_info. This calls mips_global_pointer, which
through a torturous chain of inferior calls can end up with
mips_get_cprestore_base_and_offset trying to use the information in
the frame structure which has yet to be computed...
The attached patch fixes the problem by moving the initialisation of
the global_pointer field in the frame structure to after the args_size
and hard_frame_pointer_offset fields have been initialised.
Tested with no regressions on a mipsisa32-elf toolchain. (I know that
there are lots of different possible mips configurations. I was not
sure which one(s) I should test, so I chose one at random).
this fixes the bootstrap errors for me, seen in both libgnat and libgfortran.
