[llvm-commits] [PATCH] asan-rt: discover main thread stack limits without pthread

[Evgeniy Stepanov]

In fact, I'd like copy or reimplement ProcMapsIterator as part of ASan
to escape the ifdef hell.
But this should be good enough, lets land it first.

On Wed, Dec 28, 2011 at 3:24 AM, Kostya Serebryany <kcc at google.com> wrote:
> I like the idea (it may actually fix the problem reported today on wine),
> but we need to guard the code that uses sysinfo/sysinfo.h
> with ASAN_USE_SYSINFO==1 (see asan_stack.cc).
> Or add some macro machinery to get sysinfo.h from an alternative place as in
> perftools (base/sysinfo.h).
>
> --kcc
>
>
> On Wed, Dec 21, 2011 at 4:04 AM, Evgeniy Stepanov
> <eugeni.stepanov at gmail.com> wrote:
>>
>> Hi,
>>
>> if __asan_init is called from .preinit_array, pthread_getattr_np may
>> become unsafe. This patch adds a different way of locating the stack
>> of the main thread with a combination of getlrimit() and
>> /proc/self/maps.
>
>
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