test/msan/msan_print_shadow.cc

   1 // RUN: %clangxx_msan -m64 -O0 -g %s -o %t && %run %t >%t.out 2>&1
   2 // RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NO-ORIGINS < %t.out
   3
   4 // RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O0 -g %s -o %t && %run %t >%t.out 2>&1
   5 // RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ORIGINS < %t.out
   6
   7 // RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -m64 -O0 -g %s -o %t && %run %t >%t.out 2>&1
   8 // RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ORIGINS --check-prefix=CHECK-ORIGINS-2 < %t.out
   9
  10 #include <sanitizer/msan_interface.h>
  11
  12 int main(void) {
  13   char volatile x;
  14   char *p = new char[320];
  15   p[2] = p[5] = 1;
  16   p[8] = p[9] = p[10] = p[11] = p[12] = 2;
  17
  18   __msan_allocated_memory(p + 4*3, 4);
  19   __msan_allocated_memory(p + 4*4, 4);
  20   __msan_allocated_memory(p + 4*5, 4);
  21   __msan_allocated_memory(p + 4*6, 4);
  22   __msan_allocated_memory(p + 4*7, 4);
  23   __msan_allocated_memory(p + 4*8, 4);
  24   __msan_allocated_memory(p + 4*9, 4);
  25   __msan_allocated_memory(p + 4*10, 4);
  26   __msan_allocated_memory(p + 4*11, 4);
  27   __msan_allocated_memory(p + 4*12, 4);
  28   __msan_allocated_memory(p + 4*13, 4);
  29   __msan_allocated_memory(p + 4*14, 4);
  30   __msan_allocated_memory(p + 4*15, 4);
  31   __msan_allocated_memory(p + 4*16, 4);
  32   __msan_allocated_memory(p + 4*17, 4);
  33   __msan_allocated_memory(p + 4*18, 4);
  34   __msan_allocated_memory(p + 4*19, 4);
  35   __msan_allocated_memory(p + 4*20, 4);
  36   __msan_allocated_memory(p + 4*21, 4);
  37   __msan_allocated_memory(p + 4*22, 4);
  38   __msan_allocated_memory(p + 4*23, 4);
  39   __msan_allocated_memory(p + 4*24, 4);
  40   __msan_allocated_memory(p + 4*25, 4);
  41   __msan_allocated_memory(p + 4*26, 4);
  42   __msan_allocated_memory(p + 4*27, 4);
  43   __msan_allocated_memory(p + 4*28, 4);
  44   __msan_allocated_memory(p + 4*29, 4);
  45   __msan_allocated_memory(p + 4*30, 4);
  46   __msan_allocated_memory(p + 4*31, 4);
  47
  48   p[19] = x;
  49
  50   __msan_print_shadow(p+5, 297);
  51   delete[] p;
  52   return 0;
  53 }
  54
  55 // CHECK: Shadow map of [{{.*}}), 297 bytes:
  56
  57 // CHECK-NO-ORIGINS: 0x{{.*}}: ..00ffff 00000000 ffffffff ffffffff
  58 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  59 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  60 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  61 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  62 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  63 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  64 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  65 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  66 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  67 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  68 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  69 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  70 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  71 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  72 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  73 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  74 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
  75 // CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffff.... ........
  76
  77 // CHECK-ORIGINS: 0x{{.*}}: ..00ffff 00000000 ffffffff ffffffff  |A . B C|
  78 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |D E F G|
  79 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |H I J K|
  80 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |L M N O|
  81 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |P Q R S|
  82 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |T U V W|
  83 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |X Y Z *|
  84 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |* * * A|
  85 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |A A A A|
  86 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |A A A A|
  87 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |A A A A|
  88 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |A A A A|
  89 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |A A A A|
  90 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |A A A A|
  91 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |A A A A|
  92 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |A A A A|
  93 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |A A A A|
  94 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff  |A A A A|
  95 // CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffff.... ........  |A A A .|
  96
  97 // CHECK-ORIGINS: Origin A (origin_id {{.*}}):
  98 // CHECK-ORIGINS:   Uninitialized value was created by a heap allocation
  99 // CHECK-ORIGINS:     #1 {{.*}} in main{{.*}}msan_print_shadow.cc:14
 100
 101 // CHECK-ORIGINS: Origin B (origin_id {{.*}}):
 102 // CHECK-ORIGINS:   Uninitialized value was created by a heap allocation
 103 // CHECK-ORIGINS:     #0 {{.*}} in __msan_allocated_memory
 104 // CHECK-ORIGINS:     #1 {{.*}} in main{{.*}}msan_print_shadow.cc:18
 105
 106 // CHECK-ORIGINS: Origin C (origin_id {{.*}}):
 107 // CHECK-ORIGINS-2:  Uninitialized value was stored to memory at
 108 // CHECK-ORIGINS-2:    #0 {{.*}} in main{{.*}}msan_print_shadow.cc:48
 109 // CHECK-ORIGINS:   Uninitialized value was created by an allocation of 'x' in the stack frame of function 'main'
 110 // CHECK-ORIGINS:     #0 {{.*}} in main{{.*}}msan_print_shadow.cc:12
 111
 112 // CHECK-ORIGINS: Origin D (origin_id {{.*}}):
 113 // CHECK-ORIGINS:   Uninitialized value was created by a heap allocation
 114 // CHECK-ORIGINS:     #0 {{.*}} in __msan_allocated_memory
 115 // CHECK-ORIGINS:     #1 {{.*}} in main{{.*}}msan_print_shadow.cc:20
 116
 117 // ...
 118
 119 // CHECK-ORIGINS: Origin Z (origin_id {{.*}}):
 120 // CHECK-ORIGINS:   Uninitialized value was created by a heap allocation
 121 // CHECK-ORIGINS:     #0 {{.*}} in __msan_allocated_memory
 122 // CHECK-ORIGINS:     #1 {{.*}} in main{{.*}}msan_print_shadow.cc:42