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| author | Will Deacon <[email protected]> | 2019-04-08 16:56:34 +0000 |
|---|---|---|
| committer | Will Deacon <[email protected]> | 2019-04-08 17:05:24 +0000 |
| commit | 1e6f5440a6814d28c32d347f338bfef68bc3e69d (patch) | |
| tree | 4010520c549266a7637d2587f0a541355da026b2 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | arm64/ftrace: fix inadvertent BUG() in trampoline check (diff) | |
| download | kernel-1e6f5440a6814d28c32d347f338bfef68bc3e69d.tar.gz kernel-1e6f5440a6814d28c32d347f338bfef68bc3e69d.zip | |
arm64: backtrace: Don't bother trying to unwind the userspace stack
Calling dump_backtrace() with a pt_regs argument corresponding to
userspace doesn't make any sense and our unwinder will simply print
"Call trace:" before unwinding the stack looking for user frames.
Rather than go through this song and dance, just return early if we're
passed a user register state.
Cc: <[email protected]>
Fixes: 1149aad10b1e ("arm64: Add dump_backtrace() in show_regs")
Reported-by: Kefeng Wang <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions