Files
clang-p2996/compiler-rt/test/asan/TestCases/Windows/use_after_realloc.cpp
Alvin Wong 3c1aa20c63 [asan][test][win] Port trivial tests to not use clang-cl on MinGW
Use clang driver on MinGW where clang-cl is not usable. MSVC target
still uses clang-cl to minimize changes to existing test runners.

Differential Revision: https://reviews.llvm.org/D147432
2023-04-21 21:25:49 +08:00

24 lines
843 B
C++

// RUN: %clang_cl_asan %Od %s %Fe%t
// RUN: not %run %t 2>&1 | FileCheck %s
#include <malloc.h>
int main() {
char *buffer = (char*)realloc(0, 32),
*stale = buffer;
buffer = (char*)realloc(buffer, 64);
// The 'stale' may now point to a free'd memory.
stale[0] = 42;
// CHECK: AddressSanitizer: heap-use-after-free on address [[ADDR:0x[0-9a-f]+]]
// CHECK: WRITE of size 1 at [[ADDR]] thread T0
// CHECK-NEXT: {{#0 .* main .*use_after_realloc.cpp}}:[[@LINE-3]]
// CHECK: [[ADDR]] is located 0 bytes inside of 32-byte region
// CHECK: freed by thread T0 here:
// CHECK-NEXT: {{#0 .* realloc }}
// CHECK-NEXT: {{#1 .* main .*use_after_realloc.cpp}}:[[@LINE-9]]
// CHECK: previously allocated by thread T0 here:
// CHECK-NEXT: {{#0 .* realloc }}
// CHECK-NEXT: {{#1 .* main .*use_after_realloc.cpp}}:[[@LINE-14]]
free(buffer);
}