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| author | Murilo Opsfelder Araujo <muriloo@linux.ibm.com> | 2018-08-01 23:33:19 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-08-07 16:32:30 +0200 |
| commit | 88b0fe17573592a8e3196bf143f865da460178e7 (patch) | |
| tree | a05812fa22f6c39ee714951eb6882a4193d0ac15 /arch/powerpc/include | |
| parent | powerpc/traps: Print VMA for unhandled signals (diff) | |
| download | linux-88b0fe17573592a8e3196bf143f865da460178e7.tar.xz linux-88b0fe17573592a8e3196bf143f865da460178e7.zip | |
powerpc: Add show_user_instructions()
show_user_instructions() is a slightly modified version of
show_instructions() that allows userspace instruction dump.
This will be useful within show_signal_msg() to dump userspace
instructions of the faulty location.
Here is a sample of what show_user_instructions() outputs:
pandafault[10850]: code: 4bfffeec 4bfffee8 3c401002 38427f00 fbe1fff8 f821ffc1 7c3f0b78 3d22fffe
pandafault[10850]: code: 392988d0 f93f0020 e93f0020 39400048 <99490000> 39200000 7d234b78 383f0040
The current->comm and current->pid printed can serve as a glue that
links the instructions dump to its originator, allowing messages to be
interleaved in the logs.
Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/stacktrace.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/stacktrace.h b/arch/powerpc/include/asm/stacktrace.h new file mode 100644 index 000000000000..6149b53b3bc8 --- /dev/null +++ b/arch/powerpc/include/asm/stacktrace.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Stack trace functions. + * + * Copyright 2018, Murilo Opsfelder Araujo, IBM Corporation. + */ + +#ifndef _ASM_POWERPC_STACKTRACE_H +#define _ASM_POWERPC_STACKTRACE_H + +void show_user_instructions(struct pt_regs *regs); + +#endif /* _ASM_POWERPC_STACKTRACE_H */ |