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1 // Tests trace pc guard coverage collection.
2 //
3 // REQUIRES: has_sancovcc,stable-runtime,x86_64-linux
4 //
5 // RUN: DIR=%t_workdir
6 // RUN: CLANG_ARGS="-O0 -fsanitize-coverage=trace-pc-guard"
7 // RUN: rm -rf $DIR
8 // RUN: mkdir -p $DIR
9 // RUN: cd $DIR
10 // RUN: %clangxx -DSHARED1 $CLANG_ARGS -shared %s -o %t_1.so -fPIC
11 // RUN: %clangxx -DSTATIC1 $CLANG_ARGS %s -c -o %t_2.o
12 // RUN: %clangxx -DMAIN $CLANG_ARGS %s -o %t %t_1.so %t_2.o
13 // RUN: %env_tool_opts=coverage=1 %t 2>&1 | FileCheck %s
14 // RUN: rm -rf $DIR
15 
16 #include <stdio.h>
17 #include <stdint.h>
18 #include <stdlib.h>
19 
20 extern "C" {
21   int bar();
22   int baz();
23 }
24 
25 #ifdef MAIN
26 
__sanitizer_cov_trace_pc_guard_init(uint32_t * start,uint32_t * stop)27 extern "C" void __sanitizer_cov_trace_pc_guard_init(uint32_t *start, uint32_t *stop) {
28   fprintf(stderr, "__sanitizer_cov_trace_pc_guard_init\n");
29 }
30 
__sanitizer_cov_trace_pc_guard(uint32_t * guard)31 extern "C" void __sanitizer_cov_trace_pc_guard(uint32_t *guard) { }
32 
33 
foo()34 int foo() {
35   fprintf(stderr, "foo\n");
36   return 1;
37 }
38 
main()39 int main() {
40   fprintf(stderr, "main\n");
41   foo();
42   bar();
43   baz();
44 }
45 
46 #endif // MAIN
47 
48 extern "C" {
49 
50 #ifdef SHARED1
bar()51 int bar() {
52   fprintf(stderr, "bar\n");
53   return 1;
54 }
55 #endif
56 
57 #ifdef STATIC1
baz()58 int baz() {
59   fprintf(stderr, "baz\n");
60   return 1;
61 }
62 #endif
63 
64 } // extern "C"
65 
66 // Init is called once per DSO.
67 // CHECK: __sanitizer_cov_trace_pc_guard_init
68 // CHECK-NEXT: __sanitizer_cov_trace_pc_guard_init
69 // CHECK-NEXT: main
70 // CHECK-NEXT: foo
71 // CHECK-NEXT: bar
72 // CHECK-NEXT: baz
73