1 // Check that we detect malloc/delete mismatch only if the approptiate flag 2 // is set. 3 4 // RUN: %clangxx_asan -g %s -o %t 2>&1 5 6 // Find error and provide malloc context. 7 // RUN: %env_asan_opts=alloc_dealloc_mismatch=1 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=ALLOC-STACK 8 9 // No error here. 10 // RUN: %env_asan_opts=alloc_dealloc_mismatch=0 %run %t 11 12 // Also works if no malloc context is available. 13 // RUN: %env_asan_opts=alloc_dealloc_mismatch=1:malloc_context_size=0:fast_unwind_on_malloc=0 not %run %t 2>&1 | FileCheck %s 14 // RUN: %env_asan_opts=alloc_dealloc_mismatch=1:malloc_context_size=0:fast_unwind_on_malloc=1 not %run %t 2>&1 | FileCheck %s 15 // XFAIL: arm-linux-gnueabi 16 // XFAIL: armv7l-unknown-linux-gnueabihf 17 #include <stdlib.h> 18 19 static volatile char *x; 20 21 int main() { 22 x = (char*)malloc(10); 23 x[0] = 0; 24 delete x; 25 } 26 // CHECK: ERROR: AddressSanitizer: alloc-dealloc-mismatch (malloc vs operator delete) on 0x 27 // CHECK-NEXT: #0{{.*}}operator delete 28 // CHECK: #{{.*}}main 29 // CHECK: is located 0 bytes inside of 10-byte region 30 // CHECK-NEXT: allocated by thread T0 here: 31 // ALLOC-STACK-NEXT: #0{{.*}}malloc 32 // ALLOC-STACK: #{{.*}}main 33 // CHECK: HINT: {{.*}} you may set ASAN_OPTIONS=alloc_dealloc_mismatch=0 34
