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Re: [RFA] enable software single step on alpha-osf
Following Andrew's suggestion, here is a revised patch to provide
software single stepping on alpha-osf1, plus fix all the quirks that
appeared after the switch.
I know the alpha-osf1-tdep.c change is approved, but since I haven't
committed it yet, I am including it in this patch for completeness.
No regression on alpha-osf1 (SW single step enabled) and on x86-linux
(sw single step disabled):
Yep, testing x68 linux is a good idea.
2002-07-18 Joel Brobecker <brobecker@gnat.com>
* alpha-osf1-tdep.c (alpha_osf1_init_abi): Unfortunately,
procfs appears to be broken when debugging on multi-processor
machines. So enable software single stepping in order to avoid
using the procfs interface to do next/step operations, using
internal breakpoints instead.
* infrun.c (handle_inferior_event): Readjust the stop_pc by
DECR_PC_AFTER_BREAK when hitting a single step breakpoint, to
make this pc address equal to the value it would have if the
system stepping capability was used. Also set a new flag used
to ensure that we don't readjust the PC one more time later.
* breakpoint.c (bpstat_stop_status): Do not adjust the PC
address by DECR_PC_AFTER_BREAK when software single step is
in use for this architecture, as this has already been taken
care of in handle_inferior_event().
Yes and thanks. Finally something in wfi that I understand!
Andrew