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https://lkml.org/lkml/2012/2/10/129
Feb 10, 2012 · From: Jiri Olsa <> Subject [RFC 0/5] kernel: backtrace unwind support: Date: Fri, 10 Feb 2012 12:25:14 +0100: hi, I was recently dealing with libunwind and wanted to try out the dwarf backtrace unwind in kernel space. The attached patchset implements dwarf backtrace unwind ... - 3/5 unwind, dwarf: Add dwarf unwind support - 4/5 unwind, api: Add ...Author: Jiri Olsa <>
https://kernelnewbies.org/FAQ/StackTrace
If you want to always get reliable stack traces when an oops happens, make sure you enable CONFIG_FRAME_POINTER, as well as CONFIG_STACKTRACE, CONFIG_UNWIND_INFO and CONFIG_STACK_UNWIND. With these configuration options switched on, the kernel knows exactly which addresses are part of the current call chain, and which are not.
https://stackoverflow.com/questions/23779214/stack-unwinding-support
config ARM_UNWIND bool "Enable stack unwinding support (EXPERIMENTAL)" depends on AEABI && EXPERIMENTAL default y help This option enables stack unwinding support in the kernel using the information automatically generated by the compiler.
https://github.com/giraldeau/lttng-kunwind
Kunwind support for LTTng Kunwind can recover the backtrace (or callstack) of a process in userspace from the kernel. This integration prototype aims at exploring the integration of kunwind to the LTTng kernel tracer. The backtrace can be used for tracing, debugging and profiling purpose.
https://github.com/CyanogenMod/cm-kernel/commit/f2b4a65c3172f370d7f5a46e1690fe39eabb3c34
Feb 16, 2009 · [ARM] 5383/2: unwind: Add core support for ARM stack unwinding This patch adds the main functionality for parsing the stack unwinding information generated by the ARM EABI toolchains. The unwinding information consists of an index with a pair of words per function and a table with unwinding instructions.
http://lkml.iu.edu/hypermail/linux/kernel/1203.3/01569.html
13/15 perf, tool: Support user regs and stack in sample parsing 14/15 perf, tool: Support for dwarf cfi unwinding on post processing 15/15 perf, tool: Support for dwarf mode callchain on perf record The unwind processing could considerably prolong the computing time of the report command, but I believe this could be improved.
https://github.com/raspberrypi/linux/issues/1988
May 03, 2017 · For comparison, I ran a similar test on a standard Raspbian release running dhdpcd. In order to enable tracing before the wlan interface comes up I disabled dhcpcd from starting automatically:
https://lkml.org/lkml/2012/2/10/356
Feb 10, 2012 · From: Linus Torvalds <> ... kernel: backtrace unwind support: On Fri, Feb 10, 2012 at 9:43 AM, Peter Zijlstra <[email protected]> wrote: > > So I CC'ed Linus who has a strong here, jejb since he's the one that > told me several time there's a number of literate dwarfs already in the > kernel and Jan because I think it was him that tried ...
http://man7.org/linux/man-pages/man3/backtrace.3.html
BACKTRACE(3) Linux Programmer's Manual BACKTRACE(3) NAME top backtrace, backtrace_symbols, backtrace_symbols_fd - support for application self-debugging
https://android.googlesource.com/kernel/msm/+/android-msm-flo-3.4-kitkat-mr0/arch/arm/kernel/unwind.c
Sign in. android / kernel / msm / android-msm-flo-3.4-kitkat-mr0 / . / arch / arm / kernel / unwind.c. blob: 00df012c46784ac8c510466f1a4124158c3f86a3 [] [] []
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