Re: [Valgrind-users] suppress warning repetition

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On 02/01/15 19:15, "João M. S. Silva" wrote:
> Spoke too early. Sorry for the noise.
>
> -fsanitize=address does not seem to work on armv7l, it seems to crash on
> runtime (I thought it worked on compile-time only):
>
> ==1280== ERROR: AddressSanitizer: stack-buffer-overflow on address
> 0xbe99efb0 at pc 0x29483 bp 0xbe99ef38 sp 0xbe99ef3c
> WRITE of size 4 at 0xbe99efb0 thread T0
>      #0 0x29481 (/home/ubuntu/fidelio/software/test+0x29481)
>      #1 0x3376d (/home/ubuntu/fidelio/software/test+0x3376d)
> (...)
>      #251 0x3376d (/home/ubuntu/fidelio/software/test+0x3376d)
>      #252 0x3376d (/home/ubuntu/fidelio/software/test+0x3376d)
> ==1280== AddressSanitizer CHECK failed:
> ../../../../src/libsanitizer/asan/asan_report.cc:250 "((name_end)) !=
> (0)" (0x0, 0x0)
>      #0 0xb594dc61 (/usr/lib/arm-linux-gnueabihf/libasan.so.0.0.0+0xdc61)
>      #1 0xb5953353 (/usr/lib/arm-linux-gnueabihf/libasan.so.0.0.0+0x13353)
> (...)
>      #254 0x3376d (/home/ubuntu/fidelio/software/test+0x3376d)
>
> Or is this the expected behavior?

That's not a "crash" it's address sanitizer telling you it has found a 
problem in your program. Unlike valgrind it stops as soon as it finds a 
problem - in this case you have overflowed a buffer on the stack.

Tom

-- 
Tom Hughes (to...@co...)
http://compton.nu/