[Bug sanitizer/61978] implement blacklist for sanitizer

["kcc at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61978

--- Comment #8 from Kostya Serebryany <kcc at gcc dot gnu.org> ---
(In reply to Daniel Pinol from comment #7)
> thank you everybody for your great feedback!
> 
> @kostya: I provide here the full log. Even removing the #if's, it still
> aborts. strict_memcmp=0 worked like a charm. Thanks!

Good. Formally this is a bug, but in most cases not a very harmful one. 
So, just continue using strict_memcmp=0

> 
> I guess there's no way to just report the errors but not abort execution,
> right?

Right, asan exits on first error. 
(First entry in FAQ:
https://code.google.com/p/address-sanitizer/wiki/AddressSanitizer#FAQ)

> 
> 
> 0x09de51cc is located 52 bytes to the left of global variable '*.LC2' from
> '/home/dani/svn/robot/sources/src/interaction/gui/touchscreen/ReemH/
> videoWindow/VideoWindow.cpp' (0x9de5200) of size 1
>   '*.LC2' is ascii string ''
> 0x09de51cc is located 0 bytes to the right of global variable '*.LC1' from
> '/home/dani/svn/robot/sources/src/interaction/gui/touchscreen/ReemH/
> videoWindow/VideoWindow.cpp' (0x9de51c0) of size 12
>   '*.LC1' is ascii string 'VideoWindow'
> SUMMARY: AddressSanitizer: global-buffer-overflow
> ../../.././libsanitizer/asan/asan_interceptors.cc:325 __interceptor_memcmp
> Shadow bytes around the buggy address:
>   0x213bc9e0: 04 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
>   0x213bc9f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>   0x213bca00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>   0x213bca10: 01 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
>   0x213bca20: 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
> =>0x213bca30: 00 00 00 00 00 00 00 00 00[04]f9 f9 f9 f9 f9 f9
>   0x213bca40: 01 f9 f9 f9 f9 f9 f9 f9 00 00 01 f9 f9 f9 f9 f9
>   0x213bca50: 00 00 01 f9 f9 f9 f9 f9 00 07 f9 f9 f9 f9 f9 f9
>   0x213bca60: 00 05 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
>   0x213bca70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>   0x213bca80: 00 01 f9 f9 f9 f9 f9 f9 00 00 03 f9 f9 f9 f9 f9
> Shadow byte legend (one shadow byte represents 8 application bytes):
>   Addressable:           00
>   Partially addressable: 01 02 03 04 05 06 07 
>   Heap left redzone:       fa
>   Heap right redzone:      fb
>   Freed heap region:       fd
>   Stack left redzone:      f1
>   Stack mid redzone:       f2
>   Stack right redzone:     f3
>   Stack partial redzone:   f4
>   Stack after return:      f5
>   Stack use after scope:   f8
>   Global redzone:          f9
>   Global init order:       f6
>   Poisoned by user:        f7
>   Contiguous container OOB:fc
>   ASan internal:           fe
> ==19590==ABORTING