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// RUN: %clangxx_asan -O %s -o %t
// RUN: not %run %t crash 2>&1 | FileCheck --check-prefix=CHECK-CRASH %s
// RUN: not %run %t bad-bounds 2>&1 | FileCheck --check-prefix=CHECK-BAD-BOUNDS %s
// RUN: not %run %t odd-alignment 2>&1 | FileCheck --check-prefix=CHECK-CRASH %s
// RUN: not %run %t odd-alignment-end 2>&1 | FileCheck --check-prefix=CHECK-CRASH %s
// RUN: %env_asan_opts=detect_container_overflow=0 %run %t crash
//
// Test crash due to __sanitizer_annotate_contiguous_container.
#include <assert.h>
#include <string.h>
extern "C" {
void __sanitizer_annotate_contiguous_container(const void *beg, const void *end,
const void *old_mid,
const void *new_mid);
} // extern "C"
static volatile int one = 1;
int TestCrash() {
long t[100];
t[60] = 0;
__sanitizer_annotate_contiguous_container(&t[0], &t[0] + 100, &t[0] + 100,
&t[0] + 50);
// CHECK-CRASH: AddressSanitizer: container-overflow
// CHECK-CRASH: if you don't care about these errors you may set ASAN_OPTIONS=detect_container_overflow=0
return (int)t[60 * one]; // Touches the poisoned memory.
}
void BadBounds() {
long t[100];
// CHECK-BAD-BOUNDS: ERROR: AddressSanitizer: bad parameters to __sanitizer_annotate_contiguous_container
__sanitizer_annotate_contiguous_container(&t[0], &t[0] + 100, &t[0] + 101,
&t[0] + 50);
}
int OddAlignment() {
int t[100];
t[60] = 0;
__sanitizer_annotate_contiguous_container(&t[1], &t[0] + 100, &t[0] + 100,
&t[1] + 50);
return (int)t[60 * one]; // Touches the poisoned memory.
}
int OddAlignmentEnd() {
int t[99];
t[60] = 0;
__sanitizer_annotate_contiguous_container(&t[0], &t[0] + 98, &t[0] + 98,
&t[0] + 50);
return (int)t[60 * one]; // Touches the poisoned memory.
}
int main(int argc, char **argv) {
assert(argc == 2);
if (!strcmp(argv[1], "crash"))
return TestCrash();
else if (!strcmp(argv[1], "bad-bounds"))
BadBounds();
else if (!strcmp(argv[1], "odd-alignment"))
return OddAlignment();
else if (!strcmp(argv[1], "odd-alignment-end"))
return OddAlignmentEnd();
return 0;
}
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