Raspbian

Bug #1743293
Comment #2

Comment 2 for bug 1743293

Revision history for this message

HankB (hbarta) wrote on 2020-05-29:

I believe I have run into the same issue with valgrind 3.7.0-6+rpi6 (current as of the date of this post.) Usage on Raspberry Pi OS results in thousands of errors reported for code that does not report errors on X86 platforms. I have performed the following tests.

* Download and build valgrind 3.16.0 from https://www.valgrind.org/downloads/current.html#current. It seems to work without this problem. But I am aware that this is not what is in Debian Buster from which Raspberry Pi OS is derived.

* Clone the Debian source for the version which is current on Debian (X86) Buster from https://salsa.debian.org/debian/valgrind/-/tags (valgrind Debian release 1:3.14.0-3), configure and build. I have tested this with my programs and it also works well.

I'm not conversant with what is required to vet a Debian package for Raspberry Pi OS but it seems like the unmodified Debian package is more useful than what is currently in the Raspberry Pi OS repos.

Output from the current Debian Buster version is

```text
hbarta@prelude:~/Programming/game_of_life/C++/build $ ~/valgrind-3.14/bin/valgrind --version
valgrind-3.14.0
hbarta@prelude:~/Programming/game_of_life/C++/build $ ~/valgrind-3.14/bin/valgrind ./test_util
==5893== Memcheck, a memory error detector
==5893== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==5893== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info
==5893== Command: ./test_util
==5893==
===============================================================================
All tests passed (4 assertions in 2 test cases)

==5893==
==5893== HEAP SUMMARY:
==5893== in use at exit: 0 bytes in 0 blocks
==5893== total heap usage: 2,417 allocs, 2,417 frees, 247,844 bytes allocated
==5893==
==5893== All heap blocks were freed -- no leaks are possible
==5893==
==5893== For counts of detected and suppressed errors, rerun with: -v
==5893== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
hbarta@prelude:~/Programming/game_of_life/C++/build $
```

Output from the older (Raspberry Pi OS) can be viewed at https://pastebin.com/NPEFczB7

Is it possible the armv6 patch is no longer necessary?

Output from the current Debian Buster version is

```text
hbarta@prelude:~/Programming/game_of_life/C++/build $ ~/valgrind-3.14/bin/valgrind --version
valgrind-3.14.0
hbarta@prelude:~/Programming/game_of_life/C++/build $ ~/valgrind-3.14/bin/valgrind ./test_util
==5893== Memcheck, a memory error detector
==5893== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==5893== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info
==5893== Command: ./test_util
==5893== 
===============================================================================
All tests passed (4 assertions in 2 test cases)

==5893== 
==5893== HEAP SUMMARY:
==5893==     in use at exit: 0 bytes in 0 blocks
==5893==   total heap usage: 2,417 allocs, 2,417 frees, 247,844 bytes allocated
==5893== 
==5893== All heap blocks were freed -- no leaks are possible
==5893== 
==5893== For counts of detected and suppressed errors, rerun with: -v
==5893== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
hbarta@prelude:~/Programming/game_of_life/C++/build $ 
```

Output from the older (Raspberry Pi OS) can be viewed at https://pastebin.com/NPEFczB7

Is it possible the armv6 patch is no longer necessary?