Bug 1265566 - sigpending syscall not implemented on aarch64
sigpending syscall not implemented on aarch64
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: valgrind (Show other bugs)
aarch64 Unspecified
medium Severity medium
: rc
: 7.3
Assigned To: Mark Wielaard
Miloš Prchlík
Depends On:
Blocks: 1277314
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Reported: 2015-09-23 04:50 EDT by Miloš Prchlík
Modified: 2016-11-03 22:55 EDT (History)
6 users (show)

See Also:
Fixed In Version: valgrind-3.11.0-20.el7
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2016-11-03 22:55:10 EDT
Type: Bug
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RHEL 7.3 requirements from Atomic Host:
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Tracker ID Priority Status Summary Last Updated
KDE Software Compilation 353084 None None None Never

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Description Miloš Prchlík 2015-09-23 04:50:15 EDT
Description of problem:

cat sigpending.c 
#include <signal.h>

int main(int argc, char **argv)
  sigset_t ss;


  return 0;

leads to:

==9121== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==9121== Using Valgrind-3.10.0 and LibVEX; rerun with -h for copyright info
==9121== Command: /tmp/tmp.JXCBD0Zctt/sigpending
==9121== Parent PID: 8291
--9121-- WARNING: unhandled syscall: 136
--9121-- You may be able to write your own handler.
--9121-- Nevertheless we consider this a bug.  Please report
--9121-- it at http://valgrind.org/support/bug_reports.html.
==9121== HEAP SUMMARY:
==9121==     in use at exit: 0 bytes in 0 blocks
==9121==   total heap usage: 0 allocs, 0 frees, 0 bytes allocated
==9121== All heap blocks were freed -- no leaks are possible
==9121== For counts of detected and suppressed errors, rerun with: -v
==9121== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)

This was revealed by running a reproducer for https://bugzilla.redhat.com/show_bug.cgi?id=1225964 - which was reported against ppc64. I can't see qemu - which was mentioned as an example of apps that are limited by this on pp64 - available for aarch64 though.

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Comment 1 Mark Wielaard 2015-09-23 08:17:22 EDT
Fixed by in valgrind svn r15676
Comment 3 Mark Wielaard 2016-01-05 15:36:52 EST
The upstream patch mentioned in comment #1 can be backported.
Comment 5 Miloš Prchlík 2016-06-06 10:15:56 EDT
QA note: sigpending syscall support (or rt_sigpending, since aarch64 does not have sigpending) is covered by valgrind's ./memcheck/tests/arm64-linux/scalar.c test.
Comment 6 Miloš Prchlík 2016-06-08 08:55:01 EDT
Verified for build valgrind-3.11.0-22.el7.
Comment 8 errata-xmlrpc 2016-11-03 22:55:10 EDT
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.


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