https://bugs.kde.org/show_bug.cgi?id=451144
Bug ID: 451144
Summary: getting unhandled instruction: 0xEC51 0x0F1E ==22488==
valgrind: Unrecognised instruction at address 0xcf667.
==22488== at 0xCF666: _armv7_neon_probe when
running valgrind
Product: valgrind
Version: 3.18.1
Platform: Other
OS: Other
Status: REPORTED
Severity: normal
Priority: NOR
Component: memcheck
Assignee: jsew...@acm.org
Reporter: mark.huber...@gmail.com
Target Milestone: ---
SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug
symbols.
See
https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***
STEPS TO REPRODUCE
1. I crosscompiled a C program with this compiler
https://developer.arm.com/-/media/Files/downloads/gnu-a/8.3-2019.03/binrel/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf.tar.xz?revision=e09a1c45-0ed3-4a8e-b06b-db3978fd8d56&la=en&hash=93ED4444B8B3A812B893373B490B90BBB28FD2E3
on my Ubuntu machine 20.04.
2. I then copied the program onto a Beaglebone black machine where I run the
program. details on the BBB:
$ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 10 (buster)
Release: 10
Codename: buster
$ uname -a
Linux my-hostname 4.19.94-ti-r42 #1buster SMP PREEMPT Tue Mar 31 19:38:29 UTC
2020 armv7l GNU/Linux
3. I run valgrind like so: valgrind ./myprog
OBSERVED RESULT
unhandled instruction: 0xEC51 0x0F1E ==22488== valgrind: Unrecognised
instruction at address 0xcf667. ==22488== at 0xCF666: _armv7_neon_probe
EXPECTED RESULT
full valgrind report
SOFTWARE/OS VERSIONS
my host os (where I compile the project):
$ uname -a
Linux ubuntu 5.13.0-30-generic #33~20.04.1-Ubuntu SMP Mon Feb 7 14:25:10 UTC
2022 x86_64 x86_64 x86_64 GNU/Linux
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.3 LTS
Release: 20.04
Codename: focal
The Beaglebone Black (where I run the valgrind and the program):
$ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 10 (buster)
Release: 10
Codename: buster
$ uname -a
Linux my-hostname 4.19.94-ti-r42 #1buster SMP PREEMPT Tue Mar 31 19:38:29 UTC
2020 armv7l GNU/Linux
ADDITIONAL INFORMATION
I did the same steps with gdb as in this bug report
https://bugzilla.redhat.com/show_bug.cgi?id=1495320#c2 and got to the exact
same conclusions
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