Hi John
I think the source "testClang.cpp:22" is cause. When I tested the
testClang built by clang3.8 is okay, and I used the same shared libraries and
linker . I meant the shared libraries and linker is the same , never change.
BR
Owen
-----邮件原件-----
发件人: John Reiser [mailto:jrei...@bitwagon.com]
发送时间: 2017年9月14日 6:58
收件人: valgrind-users@lists.sourceforge.net
主题: Re: [Valgrind-users] 答复: 转发: [HELP] Is there any bug with the program built
by the clang4.0 with thumbv7--linux-android command para.
Wuweijia wrote:
> I run the same application with valgrind 3.12 . I can the same stack
> when the application is down with your command line or not.
>
> The same stack when the valgrind is down:
> Thread 1: status = VgTs_Runnable (lwpid 29062)
> ==29062== at 0x1089B6: compare_exchange_strong (atomic:943)
> ==29062== by 0x1089B6: atomic_compare_exchange_strong_explicit<unsigned
> int> (atomic:1376)
> ==29062== by 0x1089B6: main (testClang.cpp:22)
>
> I think there maybe the bug in valgrind 3.13. Please check.
>
> So I send you the vgtrace.txt that is created by valgrind 3.12. I think
> it maybe helpful to you and valgrind is right .
>
[[snip]]
> vex: external/valgrind/VEX/priv/guest_arm_toIR.c:13352
> (decode_V8_instruction): Assertion `szBlg2 <= 3' failed.
Because valgrind-3.13 made changes to the code that handles atomic operations,
then there is great reluctance to working on the previous version valgrind-3.12
except to compare and contrast with the current version valgrind-3.13.
The traceback having the same address 0x1089B6 for all three subroutines, and
the source location "testClang.cpp:22" suggests that you have a short test case
that uses only a few shared libraries, or perhaps no shared library at all. If
so, then please compress and attach the whole executable. That should be
useful for analyzing.
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