llvm-project/compiler-rt/lib/tsan/lit_tests/malloc_overflow.cc

24 lines
613 B
C++

// RUN: %clangxx_tsan -O1 %s -o %t
// RUN: TSAN_OPTIONS=allocator_may_return_null=1 %t 2>&1 | FileCheck %s
#include <stdio.h>
#include <stdlib.h>
int main() {
void *p = malloc((size_t)-1);
if (p != 0)
printf("FAIL malloc(-1) = %p\n", p);
p = malloc((size_t)-1 / 2);
if (p != 0)
printf("FAIL malloc(-1/2) = %p\n", p);
p = calloc((size_t)-1, (size_t)-1);
if (p != 0)
printf("FAIL calloc(-1, -1) = %p\n", p);
p = calloc((size_t)-1 / 2, (size_t)-1 / 2);
if (p != 0)
printf("FAIL calloc(-1/2, -1/2) = %p\n", p);
printf("OK\n");
}
// CHECK-NOT: FAIL
// CHECK-NOT: failed to allocate