[llvm] r303311 - Attempt to pacify ASan and UBSan reports in CrashRecovery tests

[Reid Kleckner via llvm-commits]

Right, I discussed this with him. This should go away when that happens,
because LLVM's signal handler will work out of the box. For now this
disables ASan's signal handlers in the SupportTests binary.

On Wed, May 17, 2017 at 3:38 PM, Kostya Serebryany <kcc at google.com> wrote:

> FTR: Vitaly is planing to change the meaning/syntax/name of
> allow_user_segv_handler=1
>
> On Wed, May 17, 2017 at 3:23 PM, Reid Kleckner via llvm-commits <
> llvm-commits at lists.llvm.org> wrote:
>
>> Author: rnk
>> Date: Wed May 17 17:23:20 2017
>> New Revision: 303311
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=303311&view=rev
>> Log:
>> Attempt to pacify ASan and UBSan reports in CrashRecovery tests
>>
>> Modified:
>>     llvm/trunk/unittests/Support/CrashRecoveryTest.cpp
>>
>> Modified: llvm/trunk/unittests/Support/CrashRecoveryTest.cpp
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/Sup
>> port/CrashRecoveryTest.cpp?rev=303311&r1=303310&r2=303311&view=diff
>> ============================================================
>> ==================
>> --- llvm/trunk/unittests/Support/CrashRecoveryTest.cpp (original)
>> +++ llvm/trunk/unittests/Support/CrashRecoveryTest.cpp Wed May 17
>> 17:23:20 2017
>> @@ -17,11 +17,15 @@
>>  #include <windows.h>
>>  #endif
>>
>> +extern "C" const char *__asan_default_options() {
>> +  return "allow_user_segv_handler=1";
>> +}
>> +
>>  using namespace llvm;
>>  using namespace llvm::sys;
>>
>>  static int GlobalInt = 0;
>> -static void nullDeref() { *(volatile int *)nullptr = 0; }
>> +static void nullDeref() { *(volatile int *)0x10 = 0; }
>>  static void incrementGlobal() { ++GlobalInt; }
>>  static void llvmTrap() { LLVM_BUILTIN_TRAP; }
>>
>>
>>
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>>
>
>
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