1 // Tests trace pc guard coverage collection.
2 
3 // REQUIRES: has_sancovcc
4 // Doesn't work on big-endian targets.
5 // UNSUPPORTED: ubsan,target={{(powerpc64|s390x|sparc|thumb).*}}
6 // XFAIL: tsan,darwin
7 // XFAIL: android && asan
8 
9 // RUN: rm -rf %t_workdir
10 // RUN: mkdir -p %t_workdir
11 // RUN: cd %t_workdir
12 // RUN: %clangxx -DSHARED1 -O0 -fsanitize-coverage=trace-pc-guard -shared %s -o %t_1.so -fPIC
13 // RUN: %clangxx -DSHARED2 -O0 -fsanitize-coverage=trace-pc-guard -shared %s -o %t_2.so -fPIC
14 // RUN: %clangxx -DMAIN -O0 -fsanitize-coverage=trace-pc-guard %s -o %t %t_1.so %t_2.so
15 // RUN: %env_tool_opts=coverage=1 %t 2>&1 | FileCheck %s
16 // RUN: %sancovcc  -covered-functions -strip_path_prefix=TestCases/ *.sancov \
17 // RUN:            %t %t_1.so %t_2.so 2>&1 | \
18 // RUN:   FileCheck --check-prefix=CHECK-SANCOV %s
19 // RUN: rm -rf %t_workdir
20 
21 #include <stdio.h>
22 
23 extern "C" {
24   int bar();
25   int baz();
26 }
27 
28 #ifdef MAIN
29 
30 int foo() {
31   fprintf(stderr, "foo\n");
32   return 1;
33 }
34 
35 int main() {
36   fprintf(stderr, "main\n");
37   foo();
38   bar();
39   baz();
40 }
41 
42 #endif // MAIN
43 
44 extern "C" {
45 
46 #ifdef SHARED1
47 int bar() {
48   fprintf(stderr, "bar\n");
49   return 1;
50 }
51 #endif
52 
53 #ifdef SHARED2
54 int baz() {
55   fprintf(stderr, "baz\n");
56   return 1;
57 }
58 #endif
59 
60 } // extern "C"
61 
62 // CHECK: main
63 // CHECK-NEXT: foo
64 // CHECK-NEXT: bar
65 // CHECK-NEXT: baz
66 // CHECK-DAG: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard-dso.{{.*}}.sancov: 2 PCs written
67 // CHECK-DAG: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard-dso.{{.*}}_2.so.{{.*}}.sancov: 1 PCs written
68 // CHECK-DAG: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard-dso.{{.*}}_1.so.{{.*}}.sancov: 1 PCs written
69 //
70 // CHECK-SANCOV: Ignoring {{.*}}_1.so and its coverage because __sanitizer_cov* functions were not found.
71 // CHECK-SANCOV: Ignoring {{.*}}_2.so and its coverage because __sanitizer_cov* functions were not found.
72 // CHECK-SANCOV-NEXT: sanitizer_coverage_trace_pc_guard-dso.cpp:[[@LINE-42]] foo
73 // CHECK-SANCOV-NEXT: sanitizer_coverage_trace_pc_guard-dso.cpp:[[@LINE-38]] main
74