BuiltinLongJmpTest fails on PowerPC

[ramosian-glider]

Originally reported on Google Code with ID 185

For yet unknown reason BuiltinLongJmpTest from asan test suite fails on PowerPC. 
This is a very minor issue so I'll just disable this test on PowerPC for now. 

Repro: 
% clang -fsanitize=address  ~/tmp/__builtin_longjmp.cc ; ./a.out 
main
ASAN:SIGSEGV
=================================================================
==30905==ERROR: AddressSanitizer: SEGV on unknown address 0x0fff00000000 (pc 0x0fffb43fd254
sp 0x0fffd1011fe0 bp 0x0fffd1013048 T0)
AddressSanitizer can not provide additional info.
Segmentation fault


#include <setjmp.h>
#include <stdio.h>

int *Ident(int *a) { return a; }

void BuiltinLongJmpFunc1(jmp_buf buf) {
  // create three red zones for these two stack objects.
  int a;
  int b;

  int *A = Ident(&a);
  int *B = Ident(&b);
  *A = *B;
  __builtin_longjmp((void**)buf, 1);
}

void TouchStackFunc() {
  int a[100];  // long array will intersect with redzones from LongJmpFunc1.
  int *A = Ident(a);
  for (int i = 0; i < 100; i++)
    A[i] = i*i;
}

void test() {
  static jmp_buf buf;
  if (!__builtin_setjmp((void**)buf)) {
    fprintf(stderr, "foo\n");
    BuiltinLongJmpFunc1(buf);
  } else {
    TouchStackFunc();
    fprintf(stderr, "bar\n");
  }
}

int main() {
  fprintf(stderr, "main\n");
  test();
}

Reported by konstantin.s.serebryany on 2013-05-15 14:51:56

[ramosian-glider]

http://llvm.org/viewvc/llvm-project?rev=181890&view=rev disables the test

Reported by konstantin.s.serebryany on 2013-05-15 15:02:18

[ramosian-glider]

Reported by konstantin.s.serebryany on 2013-05-15 15:04:27

• Labels added: Arch-PowerPC

[ramosian-glider]

Same problem on ARM

Reported by rengolin on 2014-10-14 12:25:45

[ramosian-glider]

http://comments.gmane.org/gmane.comp.compilers.llvm.devel/77695

Reported by rengolin on 2014-10-14 12:26:38

[ramosian-glider]

Reported by ramosian.glider on 2015-07-30 09:05:31

• Labels added: ProjectAddressSanitizer

[ramosian-glider]

Adding Project:AddressSanitizer as part of GitHub migration.

Reported by ramosian.glider on 2015-07-30 09:06:55

[kcc]

Closing as stale.