search for: __asan_allocas_unpoison

(Resending with the correct mailing list address.) Hi, Currently test/asan/TestCases/alloca_vla_interact.cc is XFAILed for powerpc64. I've had a look at why it doesn't work. I think the only problem is in the call to __asan_allocas_unpoison that is inserted at the end of the "for" loop (just before a stackrestore instruction). The call function is created something like this (paraphrasing from lib/Transfoms/Instrumentation/AddressSanitizer.cpp): // call __asan_allocas_unpoison(uptr top, uptr bottom); // NB "top&qu...

...gt;> wrote: > > (Resending with the correct mailing list address.) > > Hi, > > Currently test/asan/TestCases/alloca_vla_interact.cc is XFAILed for > powerpc64. I've had a look at why it doesn't work. I think the only > problem is in the call to __asan_allocas_unpoison that is inserted at > the end of the "for" loop (just before a stackrestore instruction). > > The call function is created something like this (paraphrasing from > lib/Transfoms/Instrumentation/AddressSanitizer.cpp): > > // call __asan_allocas_unpoison(...

...o right direction here. Thanks, -Maxim On 18/11/15 00:12, Jay Foad wrote: >>> Currently test/asan/TestCases/alloca_vla_interact.cc is XFAILed for >>> powerpc64. I've had a look at why it doesn't work. I think the only >>> problem is in the call to __asan_allocas_unpoison that is inserted at >>> the end of the "for" loop (just before a stackrestore instruction). >>> >>> The call function is created something like this (paraphrasing from >>> lib/Transfoms/Instrumentation/AddressSanitizer.cpp): >>>...

.../11/15 00:12, Jay Foad wrote: >> >>> Currently test/asan/TestCases/alloca_vla_interact.cc is XFAILed for >>>>> powerpc64. I've had a look at why it doesn't work. I think the >>>>> only >>>>> problem is in the call to __asan_allocas_unpoison that is >>>>> inserted at >>>>> the end of the "for" loop (just before a stackrestore >>>>> instruction). >>>>> >>>>> The call function is created something like this (paraphrasing >>>>> fr...