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 #include <stdio.h>
6 #include <sanitizer/common_interface_defs.h>
7 
8 int GLOBAL_VAR_ABC;
9 
10 void SymbolizeSmallBuffer() {
11   char data[] = "abcdef";
12   __sanitizer_symbolize_pc(__sanitizer_return_address(), "%p %F %L", data, 0);
13   printf("UNCHANGED '%s'\n", data);
14   __sanitizer_symbolize_pc(__sanitizer_return_address(), "%p %F %L", data, 1);
15   printf("EMPTY '%s'\n", data);
16   __sanitizer_symbolize_pc(__sanitizer_return_address(), "%p %F %L", data,
17                            sizeof(data));
18   printf("PARTIAL '%s'\n", data);
19 }
20 
21 void SymbolizeCaller() {
22   char data[100];
23   __sanitizer_symbolize_pc(__sanitizer_return_address(), "%p %F %L", data,
24                            sizeof(data));
25   printf("FIRST_FORMAT %s\n", data);
26   __sanitizer_symbolize_pc(__sanitizer_return_address(),
27                            "FUNC:%f LINE:%l FILE:%s", data, sizeof(data));
28   printf("SECOND_FORMAT %s\n", data);
29   __sanitizer_symbolize_pc(__sanitizer_return_address(),
30                            "LOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO"
31                            "OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO"
32                            "OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO"
33                            "OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO"
34                            "OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOONG"
35                            "FUNC:%f LINE:%l FILE:%s",
36                            data, sizeof(data));
37   printf("LONG_FORMAT %s\n", data);
38 }
39 
40 struct s {
41   int i;
42 };
43 
44 struct s SymbolizeSRet() {
45   char data[100];
46   __sanitizer_symbolize_pc(__sanitizer_return_address(),
47                            "FUNC:%f LINE:%l FILE:%s", data, sizeof(data));
48   printf("SRET: %s\n", data);
49   struct s s = {1};
50   return s;
51 }
52 
53 void SymbolizeData() {
54   char data[100];
55   __sanitizer_symbolize_global(&GLOBAL_VAR_ABC, "%g %s:%l", data, sizeof(data));
56   printf("GLOBAL: %s\n", data);
57 }
58 
59 int main() {
60   // CHECK: UNCHANGED 'abcdef'
61   // CHECK: EMPTY ''
62   // CHECK: PARTIAL '0x{{.*}}'
63   SymbolizeSmallBuffer();
64 
65   // CHECK: FIRST_FORMAT 0x{{.*}} in main symbolize_pc.cpp:[[@LINE+2]]
66   // CHECK: SECOND_FORMAT FUNC:main LINE:[[@LINE+1]] FILE:symbolize_pc.cpp
67   SymbolizeCaller();
68 
69   struct s s;
70   // CHECK: SRET: FUNC:main LINE:[[@LINE+1]] FILE:symbolize_pc.cpp
71   s = SymbolizeSRet();
72 
73   // CHECK: GLOBAL: GLOBAL_VAR_ABC
74   SymbolizeData();
75 }
76