libsanitizer merge from upstream r208536

[Paolo Carlini]

Hi,

On 05/22/2014 01:03 PM, Jakub Jelinek wrote:
> On Thu, May 22, 2014 at 02:26:19PM +0400, Konstantin Serebryany wrote:
>>>>>> FAIL: c-c++-common/asan/asan-interface-1.c  -O0  execution test
>>>>> Is that before or after r210743?
> Can't reproduce the above (note, not bootstrapped compiler, just
> --disable-bootstrap), check-gcc RUNTESTFLAGS=asan.exp is clean,
Thanks Jakub. I'm not bootstrapping either, but all the fails are still 
there (fetched a fresh tree, built again). I have just noticed the below 
during the build, are expected?

Paolo.

////////////////

In file included from 
../../../../trunk/libsanitizer/asan/asan_interceptors.cc:147:0:
../../../../trunk/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc: 
In function ‘int __interceptor_accept4(int, void*, unsigned int*, int)’:
../../../../trunk/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:1821:12: 
warning: ‘addrlen0’ may be used uninitialized in this function 
[-Wmaybe-uninitialized]
unsigned addrlen0;
^
../../../../trunk/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc: 
In function ‘int __interceptor_accept(int, void*, unsigned int*)’:
../../../../trunk/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:1799:12: 
warning: ‘addrlen0’ may be used uninitialized in this function 
[-Wmaybe-uninitialized]
unsigned addrlen0;
^