[llvm] r262667 - [libFuzzer] when interrupted, call _Exit() instead of exit()

[David Blaikie via llvm-commits]

Portability for one, I'd imagine - does _Exit exist in all the platforms we
want to run on?

On Thu, Mar 3, 2016 at 2:56 PM, Kostya Serebryany <kcc at google.com> wrote:

> Why?
> I call this when interrupted by Ctrl-C, so I don't want any
>  std::at_quick_exit handlers to be called.
> Otherwise it's just _Exit
>
> On Thu, Mar 3, 2016 at 2:46 PM, David Blaikie <dblaikie at gmail.com> wrote:
>
>> quick_exit, perhaps?
>> http://en.cppreference.com/w/cpp/utility/program/quick_exit
>>
>> On Thu, Mar 3, 2016 at 2:36 PM, Kostya Serebryany via llvm-commits <
>> llvm-commits at lists.llvm.org> wrote:
>>
>>> Author: kcc
>>> Date: Thu Mar  3 16:36:37 2016
>>> New Revision: 262667
>>>
>>> URL: http://llvm.org/viewvc/llvm-project?rev=262667&view=rev
>>> Log:
>>> [libFuzzer] when interrupted, call _Exit() instead of exit()
>>>
>>> Modified:
>>>     llvm/trunk/lib/Fuzzer/FuzzerLoop.cpp
>>>
>>> Modified: llvm/trunk/lib/Fuzzer/FuzzerLoop.cpp
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Fuzzer/FuzzerLoop.cpp?rev=262667&r1=262666&r2=262667&view=diff
>>>
>>> ==============================================================================
>>> --- llvm/trunk/lib/Fuzzer/FuzzerLoop.cpp (original)
>>> +++ llvm/trunk/lib/Fuzzer/FuzzerLoop.cpp Thu Mar  3 16:36:37 2016
>>> @@ -130,7 +130,7 @@ void Fuzzer::CrashCallback() {
>>>  void Fuzzer::InterruptCallback() {
>>>    Printf("==%d== libFuzzer: run interrupted; exiting\n", GetPid());
>>>    PrintFinalStats();
>>> -  exit(0);
>>> +  _Exit(0);  // Stop right now, don't perform any at-exit actions.
>>>  }
>>>
>>>  void Fuzzer::AlarmCallback() {
>>>
>>>
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>>
>>
>
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