| Summary: | dev-util/perf-6.12: GTK browser requested but could not find libperf-gtk.so | ||
|---|---|---|---|
| Product: | Gentoo Linux | Reporter: | Stefan Huber <shuber> |
| Component: | Current packages | Assignee: | Guilherme Amadio <amadio> |
| Status: | CONFIRMED --- | ||
| Severity: | normal | CC: | amadio, dlan, eugene.shalygin, naota, shuber |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| See Also: | https://bugs.gentoo.org/show_bug.cgi?id=515954 | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
Indeed, at the time I could not reproduce with newer versions (it worked for me), but I just tried again with perf 6.10.4 and now I can reproduce this. Thanks for reporting, I will look into it and fix it. gentoo ~ $ perf report --gtk GTK browser requested but could not find libperf-gtk.so gentoo ~ $ qlist perf | grep gtk /usr/libexec/perf-core/libperf-gtk.so gentoo ~ $ perf version perf version 6.10.4 FWIW, I see this:
gentoo ~ $ ltrace -s 128 perf report --gtk 2>&1 | grep dlopen
dlopen("libperf-gtk.so", 1) = nil
dlopen("/usr/libexec/perf-core/libperf-gtk.so", 1) = nil
So it should have opened it the second time.
Hm, apparently not for version 6.7:
❯ perf record sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.002 MB perf.data (16 samples) ]
❯ ltrace perf report --gtk 2>&1 | grep libperf-gtk
dlopen("libperf-gtk.so", 1) = nil
exit(0GTK browser requested but could not find libperf-gtk.so
ltrace perf report --gtk 2>&1 8.82s user 6.09s sys 92% cpu 16.127 total 11 MB RSS max
grep --color=auto libperf-gtk 1.27s user 1.37s sys 16% cpu 16.125 total 11 MB RSS max
❯ perf version
perf version 6.7
Sorry, my mistake missing "-s" to ltrace:
❯ ltrace -s 128 perf report --gtk 2>&1 | grep dlopen
dlopen("libperf-gtk.so", 1) = nil
dlopen("/usr/libexec/perf-core/libperf-gtk.so", 1) = nil
It seems that this bug is different than the previous one. There is a symbol missing, which causes dlopen to fail even when the library is found:
gentoo ~ $ LD_DEBUG=symbols perf report --gtk 2>&1 | grep '(fatal)'
678815: /usr/libexec/perf-core/libperf-gtk.so: error: symbol lookup error: undefined symbol: hashmap_find (fatal)
I will follow this up with upstream.
Reproducible with perf-6.12, updated the description accordingly. gentoo ~ $ perf version perf version 6.12 gentoo ~ $ perf record -a -g -- sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.375 MB perf.data (3140 samples) ] gentoo ~ $ LD_DEBUG=symbols perf report --gtk 2>&1 | grep '(fatal)' 3565153: /usr/libexec/perf-core/libperf-gtk.so: error: symbol lookup error: undefined symbol: hashmap_find (fatal) |
perf cannot find libperf-gtk.so although it is installed: $ perf report --gtk GTK browser requested but could not find libperf-gtk.so $ ltrace perf report --gtk 2>&1 | grep libperf-gtk dlopen("libperf-gtk.so", 1) = nil $ qlist -e perf | grep -i gtk /usr/libexec/perf-core/libperf-gtk.so It seems to be as in bug #548144 from 2015-04-29, closed as obsolete in 2020-11-19. Reproducible: Always