ELFUTILS 0.193 "Bugs erased, stacks traced" - https://elfutils.org/
A new release of elfutils is available at:
ftp://sourceware.org/pub/elfutils/0.193/
or https://sourceware.org/elfutils/ftp/0.193/
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* NEWS *
debuginfod: Add CORS (webapp access) s
On Fri, Apr 25, 2025, at 12:02 PM, Aaron Merey wrote:
>> First patch of a series that reworks eu-stacktrace functionality
>> into a library interface for other profiling tools.
>
> Thanks I've approved and merged this series with two changes:
> Signed-off-by added to each commit message and a rw
Changes for v6:
- Minor fixes as requested.
Changes for v2:
- Merged commit 11 into commit 1 (both sample_base_addr/sample_pc and
set_initial_registers_sample make sense to introduce in the same
commit).
- Added i386 backend and factored out common code.
* * *
First patch of a series that
On Fri, Apr 25, 2025 at 10:56 AM Serhei Makarov wrote:
>
> Changes for v6:
>
> - Minor fixes as requested.
>
> Changes for v2:
>
> - Merged commit 11 into commit 1 (both sample_base_addr/sample_pc and
> set_initial_registers_sample make sense to introduce in the same
> commit).
>
> - Added i38
Changes for v4:
- Separate out libdwfl_stacktrace, as requested.
* * *
New data structure to coordinate caching Elf data among multiple Dwfl
structs attached to different processes. Meant to reduce the overhead
for profilers that use elfutils for unwinding.
The caching is well-justified, as the
Changes for v4:
- Separate out libdwfl_stacktrace, as requested.
Changes for v3:
- Fix initialization of elf in sysprof_init_dwfl
(previously triggered -Wmaybe-uninitialized).
* * *
Remove the code from src/stacktrace.c that is now covered by
libdwfl_stacktrace/dwflst_perf_frame.c and
dwflst
Changes for v6:
- Minor fixes as requested.
Changes for v4:
- Separate out libdwfl_stacktrace, as requested.
Changes for v3:
- use const void *stack, not void *, to allow users
to pass a const stack sample
Changes for v2:
- use renamed __libdwfl_set_initial_registers_thread
- oops, should
Changes for v6:
- Minor fixes as requested.
Changes for v4:
- Separate out libdwfl_stacktrace, as requested.
* * *
Initial minimal change to ensure dwflst_tracker_find_pid is
tested. For now, we keep the additional dwfltab implementation in
stacktrace.c, since it's being used to track statisti
Changes for v6:
- Minor fixes as requested.
Changes for v4:
- Separate out libdwfl_stacktrace, as requested.
Changes for v3:
- Handle dwfl->process == NULL case in __libdwfl_remove_dwfl_from_tracker.
* * *
The Dwflst_Process_Tracker also includes a dynamicsizehash cache which
maps process id
Changes for v6:
- Minor fixes as requested.
Changes for v5:
- Bugfixes in dwflst_tracker_find_elf.c.
Changes for v4:
- Separate out libdwfl_stacktrace, as requested.
- dwfl_module_getdwarf.c now uses the dwflst_tracker_cache_elf()
interface instead of editing the elftab directly.
Changes f
Changes for v4:
- Since __libdwfl_set_initial_registers_thread is now private to
libdwfl, the modified code in this patch has been disabled.
* * *
Dummy commit to show how the sample_set_initial_registers callback in
eu-stacktrace would use the proper libebl
ebl_set_initial_registers_sample fu
Changes for v4:
- Separate out libdwfl_stacktrace, as requested.
* * *
* src/Makefile.am (AM_CPPFLAGS): Include headers from
../libdwfl_stacktrace.
* src/stacktrace.c (tracker): New global variable.
(sample_callbacks): Use dwflst_tracker_linux_proc_find_elf for
caching.
(sysprof_init_dwf
Changes for v5:
- Separate ELFUTILS_0.193_EXPERIMENTAL namespace, mark library experimental.
Changes for v4:
- Separate out libdwfl_stacktrace, as requested.
Changes for v2:
- guard the linux/perf_events.h include properly with an #if defined __linux__
* * *
Subsequent patches in the series
Changes for v6:
- Minor fixes as requested.
Changes for v4:
- Separate out libdwfl_stacktrace, as requested.
Changes for v2:
- Add locking for dwfltab.
* * *
New function that retrieves the Dwfl for a particular PID, or,
if the Dwfl is absent, creates it via a provided callback
and adds it t
Changes for v6:
- Minor fixes as requested.
Changes for v2:
- No longer exposing this in public libdwfl.h api.
* * *
Renaming pid_set_initial_registers to
__libdwfl_set_initial_registers_thread and adding to libdwflP.h.
This callback was private to one file, but now we need to access it
from
On Fri, Apr 25, 2025 at 9:56 AM Serhei Makarov wrote:
>
>
>
> On Fri, Apr 25, 2025, at 1:57 AM, Aaron Merey wrote:
> > Also if you haven't done so already, please run any manual tests under
> > valgrind memcheck (and helgrind if you are able to test this with
> > multithreading).
> Ran eu-stacktra
On Fri, Apr 25, 2025, at 1:57 AM, Aaron Merey wrote:
> Also if you haven't done so already, please run any manual tests under
> valgrind memcheck (and helgrind if you are able to test this with
> multithreading).
Ran eu-stacktrace through valgrind; the content of the cache is marked as
'leaked'
On Fri, Apr 25, 2025, at 1:54 AM, Aaron Merey wrote:
> This commit could probably be merged with 2 or 12 with the
> sample_set_initial_registers design decisions explained in the commit
> message. But this patch as-is is harmless so if you prefer to keep it
> this way that's ok with me.
I'm incl
Hi -
> [...]
> $ debuginfod-find -v debuginfo 1afd01f4bd3e689a67206c10c20e69921ba9be93
> /home/fweimer/.cache/debuginfod_client/1afd01f4bd3e689a67206c10c20e69921ba9be93/debuginfo
>
> Due to the caching, the extra metadata is not shown.
I love this kind of feature request, coming to you in the im
The functionality is almost there:
$ debuginfod-find -v debuginfo 1afd01f4bd3e689a67206c10c20e69921ba9be93
Progress 1 / 0
Progress 77622 / 3150088
Progress 257335 / 3150088
Progress 601864 / 3150088
Progress 2398519 / 3150088
Headers:
x-debuginfod-size: 3150088
x-debuginfod-archive:
/mnt/fedora_k
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