https://sourceware.org/bugzilla/show_bug.cgi?id=30491
Bug ID: 30491
Summary: mttest failed on aarch64 / OL9
Product: binutils
Version: 2.41 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: gprofng
Assignee: vladimir.mezentsev at oracle dot com
Reporter: vladimir.mezentsev at oracle dot com
Target Milestone: ---
This is probably a common stack unwind problem on aarch64 in gprofng.
To easily reproduce the issue, run the gprofng tests on aarch64/OL9:
% cd <BLD>/gprogng
% rm -rf tmpdir
% time make check-extra
...
# of expected failures 3
% cd tmpdir/mttest.-g-O0,-pon
% gp-display-text -ctree test.er/
Functions Call Tree. Metric: Attributed Total CPU Time
Attr. Total Name
CPU
sec. %
126.478 100.00 +-<Total>
25.218 19.94 +-<Unknown>
9.186 7.26 | +-computeB
9.136 7.22 | +-computeA
6.895 5.45 | +-addone
18.503 14.63 +-start_thread
18.503 14.63 | +-collector_root
18.503 14.63 | +-do_work
15.501 12.26 | +-trylock_global
10.728 8.48 | | +-__aarch64_cas4_acq
4.253 3.36 | | +-___pthread_mutex_trylock
2.562 2.03 | +-calladd
2.552 2.02 | | +-computeF
0.010 0.01 | | +-addone
0.440 0.35 | +-___pthread_mutex_trylock
12.439 9.83 +-compute
12.439 9.83 +-computeC
12.409 9.81 +-computeI
12.399 9.80 +-computeG
12.319 9.74 +-computeH
11.468 9.07 +-computeD
9.276 7.33 +-computeE
0.010 0.01 +-__libc_start_main_impl
0.010 0.01 +-__libc_start_call_main
0.010 0.01 +-main
0.010 0.01 +-locktest
0.010 0.01 +-thread_work
0.010 0.01 +-gprofng_pthread_create
0.010 0.01 +-__collector_allocCSize
0.010 0.01 +-sigprocmask
0.010 0.01 +-__pthread_sigmask
We see that many functions are mapped to <Unknown>.
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