// RUN: %clangxx_msan -O0 -g %s -o %t && %run %t >%t.out 2>&1 // RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NO-ORIGINS < %t.out // RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 -g %s -o %t && %run %t >%t.out 2>&1 // RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ORIGINS < %t.out // RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -O0 -g %s -o %t && %run %t >%t.out 2>&1 // RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ORIGINS --check-prefix=CHECK-ORIGINS-2 < %t.out #include int main(void) { char volatile x; char *p = new char[320]; p[2] = p[5] = 1; p[8] = p[9] = p[10] = p[11] = p[12] = 2; __msan_allocated_memory(p + 4*3, 4); __msan_allocated_memory(p + 4*4, 4); __msan_allocated_memory(p + 4*5, 4); __msan_allocated_memory(p + 4*6, 4); __msan_allocated_memory(p + 4*7, 4); __msan_allocated_memory(p + 4*8, 4); __msan_allocated_memory(p + 4*9, 4); __msan_allocated_memory(p + 4*10, 4); __msan_allocated_memory(p + 4*11, 4); __msan_allocated_memory(p + 4*12, 4); __msan_allocated_memory(p + 4*13, 4); __msan_allocated_memory(p + 4*14, 4); __msan_allocated_memory(p + 4*15, 4); __msan_allocated_memory(p + 4*16, 4); __msan_allocated_memory(p + 4*17, 4); __msan_allocated_memory(p + 4*18, 4); __msan_allocated_memory(p + 4*19, 4); __msan_allocated_memory(p + 4*20, 4); __msan_allocated_memory(p + 4*21, 4); __msan_allocated_memory(p + 4*22, 4); __msan_allocated_memory(p + 4*23, 4); __msan_allocated_memory(p + 4*24, 4); __msan_allocated_memory(p + 4*25, 4); __msan_allocated_memory(p + 4*26, 4); __msan_allocated_memory(p + 4*27, 4); __msan_allocated_memory(p + 4*28, 4); __msan_allocated_memory(p + 4*29, 4); __msan_allocated_memory(p + 4*30, 4); __msan_allocated_memory(p + 4*31, 4); p[19] = x; __msan_print_shadow(p+5, 297); delete[] p; return 0; } // CHECK: Shadow map of [{{.*}}), 297 bytes: // CHECK-NO-ORIGINS: 0x{{.*}}: ..00ffff 00000000 ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffff.... ........ // CHECK-ORIGINS: 0x{{.*}}: ..00ffff 00000000 ffffffff ffffffff |A . B C| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |D E F G| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |H I J K| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |L M N O| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |P Q R S| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |T U V W| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |X Y Z *| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |* * * A| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A A| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A A| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A A| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A A| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A A| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A A| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A A| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A A| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A A| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A A| // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffff.... ........ |A A A .| // CHECK-ORIGINS: Origin A (origin_id {{.*}}): // CHECK-ORIGINS: Uninitialized value was created by a heap allocation // CHECK-ORIGINS: #1 {{.*}} in main{{.*}}msan_print_shadow.cc:14 // CHECK-ORIGINS: Origin B (origin_id {{.*}}): // CHECK-ORIGINS: Memory was marked as uninitialized // CHECK-ORIGINS: #0 {{.*}} in __msan_allocated_memory // CHECK-ORIGINS: #1 {{.*}} in main{{.*}}msan_print_shadow.cc:18 // CHECK-ORIGINS: Origin C (origin_id {{.*}}): // CHECK-ORIGINS-2: Uninitialized value was stored to memory at // CHECK-ORIGINS-2: #0 {{.*}} in main{{.*}}msan_print_shadow.cc:48 // CHECK-ORIGINS: Uninitialized value was created by an allocation of 'x' in the stack frame of function 'main' // CHECK-ORIGINS: #0 {{.*}} in main{{.*}}msan_print_shadow.cc:12 // CHECK-ORIGINS: Origin D (origin_id {{.*}}): // CHECK-ORIGINS: Memory was marked as uninitialized // CHECK-ORIGINS: #0 {{.*}} in __msan_allocated_memory // CHECK-ORIGINS: #1 {{.*}} in main{{.*}}msan_print_shadow.cc:20 // ... // CHECK-ORIGINS: Origin Z (origin_id {{.*}}): // CHECK-ORIGINS: Memory was marked as uninitialized // CHECK-ORIGINS: #0 {{.*}} in __msan_allocated_memory // CHECK-ORIGINS: #1 {{.*}} in main{{.*}}msan_print_shadow.cc:42