Oleg Nesterov 0578a97098 uprobes: Fix UPROBE_SKIP_SSTEP checks in handle_swbp() ...

If handle_swbp()->add_utask() fails but UPROBE_SKIP_SSTEP is set,
cleanup_ret: path do not restart the insn, this is wrong. Remove
this check and add the additional label for can_skip_sstep() = T
case.

Note also that UPROBE_SKIP_SSTEP can be false positive, we simply
can not trust it unless arch_uprobe_skip_sstep() was already called.

Also, move another UPROBE_SKIP_SSTEP check before can_skip_sstep()
into this helper, this looks more clean and understandable.

Note: probably we should rename "skip" to "emulate" and I think
that "clear UPROBE_SKIP_SSTEP" should be moved to arch_can_skip.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>

2012-09-29 21:21:52 +02:00

..

callchain.c

perf: Add attribute to filter out callchains

2012-08-10 12:40:57 -03:00

core.c

perf: Add ability to attach user stack dump to sample

2012-08-10 12:17:58 -03:00

hw_breakpoint.c

Merge branch 'x86/cleanups' into perf/uprobes

2012-03-13 16:33:03 +01:00

internal.h

perf: Add ability to attach user stack dump to sample

2012-08-10 12:17:58 -03:00

Makefile

uprobes: Move to kernel/events/

2012-02-22 11:08:00 +01:00

ring_buffer.c

perf: Add perf_output_skip function to skip bytes in sample

2012-08-10 12:16:22 -03:00

uprobes.c

uprobes: Fix UPROBE_SKIP_SSTEP checks in handle_swbp()

2012-09-29 21:21:52 +02:00