15d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines// RUN: %clang_cl_asan -O0 %p/dll_host.cc -Fe%t 25d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines// RUN: %clang_cl_asan -LD -O0 %s -Fe%t.dll 32d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// RUN: not %run %t %t.dll 2>&1 | FileCheck %s 42d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines 52d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hinesextern "C" __declspec(dllexport) 62d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hinesint test_function() { 72d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines char *buffer = new char[42]; 82d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines buffer[-1] = 42; 92d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// CHECK: AddressSanitizer: heap-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] 102d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// CHECK: WRITE of size 1 at [[ADDR]] thread T0 112d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// CHECK-NEXT: test_function {{.*}}dll_operator_array_new_left_oob.cc:[[@LINE-3]] 122d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// CHECK-NEXT: main {{.*}}dll_host.cc 132d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// 142d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// CHECK: [[ADDR]] is located 1 bytes to the left of 42-byte region 152d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// CHECK-LABEL: allocated by thread T0 here: 162d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// FIXME: should get rid of the malloc/free frames called from the inside of 172d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// operator new/delete in DLLs. Also, the operator new frame should have []. 182d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// CHECK-NEXT: malloc 192d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// CHECK-NEXT: operator new 202d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// CHECK-NEXT: test_function {{.*}}dll_operator_array_new_left_oob.cc:[[@LINE-13]] 212d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// CHECK-NEXT: main {{.*}}dll_host.cc 222d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines// CHECK-LABEL: SUMMARY 232d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines delete [] buffer; 242d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines return 0; 252d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines} 26