diff options
| author | Josh Poimboeuf <[email protected]> | 2020-04-25 05:03:00 -0500 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2020-04-25 12:22:27 +0200 |
| commit | d8dd25a461e4eec7190cb9d66616aceacc5110ad (patch) | |
| tree | 3fe6dfae5371895cbde13cbaea289a0926de0169 /tools/perf/scripts/python/bin/export-to-postgresql-report | |
| parent | ab51cac00ef2859f20a73d33a53f3a8987b65e11 (diff) | |
objtool: Fix stack offset tracking for indirect CFAs
When the current frame address (CFA) is stored on the stack (i.e.,
cfa->base == CFI_SP_INDIRECT), objtool neglects to adjust the stack
offset when there are subsequent pushes or pops. This results in bad
ORC data at the end of the ENTER_IRQ_STACK macro, when it puts the
previous stack pointer on the stack and does a subsequent push.
This fixes the following unwinder warning:
WARNING: can't dereference registers at 00000000f0a6bdba for ip interrupt_entry+0x9f/0xa0
Fixes: 627fce14809b ("objtool: Add ORC unwind table generation")
Reported-by: Vince Weaver <[email protected]>
Reported-by: Dave Jones <[email protected]>
Reported-by: Steven Rostedt <[email protected]>
Reported-by: Vegard Nossum <[email protected]>
Reported-by: Joe Mario <[email protected]>
Reviewed-by: Miroslav Benes <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Jann Horn <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: https://lore.kernel.org/r/853d5d691b29e250333332f09b8e27410b2d9924.1587808742.git.jpoimboe@redhat.com
Diffstat (limited to 'tools/perf/scripts/python/bin/export-to-postgresql-report')
0 files changed, 0 insertions, 0 deletions