compiler-rt/test/sanitizer_common/TestCases/symbolize_pc.cpp

   1 // RUN: %clangxx -O0 %s -o %t
   2 // RUN: %env_tool_opts=strip_path_prefix=/TestCases/ %run %t 2>&1 | FileCheck %s
   3 //
   4 // Tests __sanitizer_symbolize_pc.
   5
   6 // FIXME: Investigate why it does not print GLOBAL_VAR_ABC.
   7 // XFAIL: hwasan && target=aarch64{{.*}}
   8 // LSan tests fail on Darwin
   9 // UNSUPPORTED: darwin && lsan
  10 // tsan and ubsan are supported on darwin, but they currently fail
  11 // on some platforms likely because the test platform is too old
  12 // UNSUPPORTED: darwin && tsan
  13 // UNSUPPORTED: darwin && ubsan
  14
  15 #include <stdio.h>
  16 #include <sanitizer/common_interface_defs.h>
  17
  18 int GLOBAL_VAR_ABC;
  19
  20 void SymbolizeSmallBuffer() {
  21   char data[] = "abcdef";
  22   __sanitizer_symbolize_pc(__sanitizer_return_address(), "%p %F %L", data, 0);
  23   printf("UNCHANGED '%s'\n", data);
  24   __sanitizer_symbolize_pc(__sanitizer_return_address(), "%p %F %L", data, 1);
  25   printf("EMPTY '%s'\n", data);
  26   __sanitizer_symbolize_pc(__sanitizer_return_address(), "%p %F %L", data,
  27                            sizeof(data));
  28   printf("PARTIAL '%s'\n", data);
  29 }
  30
  31 void SymbolizeCaller() {
  32   char data[100];
  33   __sanitizer_symbolize_pc(__sanitizer_return_address(), "%p %F %L", data,
  34                            sizeof(data));
  35   printf("FIRST_FORMAT %s\n", data);
  36   __sanitizer_symbolize_pc(__sanitizer_return_address(),
  37                            "FUNC:%f LINE:%l FILE:%s", data, sizeof(data));
  38   printf("SECOND_FORMAT %s\n", data);
  39   __sanitizer_symbolize_pc(__sanitizer_return_address(),
  40                            "LOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO"
  41                            "OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO"
  42                            "OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO"
  43                            "OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO"
  44                            "OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOONG"
  45                            "FUNC:%f LINE:%l FILE:%s",
  46                            data, sizeof(data));
  47   printf("LONG_FORMAT %s\n", data);
  48 }
  49
  50 struct s {
  51   int i;
  52 };
  53
  54 struct s SymbolizeSRet() {
  55   char data[100];
  56   __sanitizer_symbolize_pc(__sanitizer_return_address(),
  57                            "FUNC:%f LINE:%l FILE:%s", data, sizeof(data));
  58   printf("SRET: %s\n", data);
  59   struct s s = {1};
  60   return s;
  61 }
  62
  63 void SymbolizeData() {
  64   char data[100];
  65   __sanitizer_symbolize_global(&GLOBAL_VAR_ABC, "%g %s:%l", data, sizeof(data));
  66   printf("GLOBAL: %s\n", data);
  67 }
  68
  69 int main() {
  70   // CHECK: UNCHANGED 'abcdef'
  71   // CHECK: EMPTY ''
  72   // CHECK: PARTIAL '0x{{.*}}'
  73   SymbolizeSmallBuffer();
  74
  75   // CHECK: FIRST_FORMAT 0x{{.*}} in main symbolize_pc.cpp:[[@LINE+2]]
  76   // CHECK: SECOND_FORMAT FUNC:main LINE:[[@LINE+1]] FILE:symbolize_pc.cpp
  77   SymbolizeCaller();
  78
  79   struct s s;
  80   // CHECK: SRET: FUNC:main LINE:[[@LINE+1]] FILE:symbolize_pc.cpp
  81   s = SymbolizeSRet();
  82
  83   // CHECK: GLOBAL: GLOBAL_VAR_ABC
  84   SymbolizeData();
  85 }