1/// This test fails on Mac (https://bugs.llvm.org/show_bug.cgi?id=38134)
2// XFAIL: darwin
3
4// RUN: mkdir -p %t.d && cd %t.d
5
6// RUN: %clang -E -DSHARED %s -o shared.c -dumpdir ./
7// RUN: %clang --coverage -fPIC -shared shared.c -o libfunc.so -dumpdir ./
8// RUN: test -f shared.gcno
9
10/// Test the case where we exit abruptly after calling __gcov_dump, which means we don't write out the counters at exit.
11// RUN: %clang -DEXIT_ABRUPTLY -DSHARED_CALL_BEFORE_FLUSH -DSHARED_CALL_AFTER_FLUSH --coverage %s -L%t.d -rpath %t.d -lfunc -o %t -dumpdir ./
12// RUN: test -f gcov-shared-flush.gcno
13
14// RUN: rm -f gcov-shared-flush.gcda shared.gcda
15// RUN: %run %t
16// RUN: llvm-cov gcov -t gcov-shared-flush.gcda | FileCheck %s --check-prefix=NO_WRITEOUT
17// RUN: llvm-cov gcov -t shared.gcda | FileCheck %s --check-prefix=SHARED
18
19// NO_WRITEOUT: -: [[#%u,L:]]:#ifdef EXIT_ABRUPTLY
20// NO_WRITEOUT-NEXT: 1: [[#%u,L+1]]: _exit(0);
21
22// SHARED: 1: {{[[0-9]+}}:void foo(int n)
23
24/// Test the case where we exit normally and we have a call to the shared library function before __gcov_dump.
25// RUN: %clang -DSHARED_CALL_BEFORE_FLUSH --coverage %s -L%t.d -rpath %t.d -lfunc -o %t -dumpdir ./
26// RUN: test -f gcov-shared-flush.gcno
27
28// RUN: rm -f gcov-shared-flush.gcda shared.gcda
29// RUN: %run %t
30// RUN: llvm-cov gcov -t gcov-shared-flush.gcda | FileCheck %s --check-prefix=BEFORE
31// RUN: llvm-cov gcov -t shared.gcda | FileCheck %s --check-prefix=SHARED_ONCE
32
33// BEFORE: -: {{[0-9]+}}:#ifdef SHARED_CALL_BEFORE_FLUSH
34// BEFORE-NEXT: 1: {{[0-9]+}}: foo(1);
35// BEFORE: 1: {{[0-9]+}}: __gcov_dump();
36// BEFORE-NEXT: 1: {{[0-9]+}}: __gcov_reset();
37// BEFORE: -: {{[0-9]+}}:#ifdef SHARED_CALL_AFTER_FLUSH
38// BEFORE-NEXT: -: {{[0-9]+}}: foo(1);
39// BEFORE: 1: {{[0-9]+}}: bar(5);
40
41// SHARED_ONCE: 1: {{[0-9]+}}:void foo(int n)
42
43// # Test the case where we exit normally and we have a call to the shared library function after __gcov_dump.
44// RUN: %clang -DSHARED_CALL_AFTER_FLUSH --coverage %s -L%t.d -rpath %t.d -lfunc -o %t -dumpdir ./
45// RUN: test -f gcov-shared-flush.gcno
46
47// RUN: rm -f gcov-shared-flush.gcda shared.gcda
48// RUN: %run %t
49// RUN: llvm-cov gcov -t gcov-shared-flush.gcda | FileCheck %s --check-prefix=AFTER
50// RUN: llvm-cov gcov -t shared.gcda > 2s.txt
51
52// AFTER: -: {{[0-9]+}}:#ifdef SHARED_CALL_BEFORE_FLUSH
53// AFTER-NEXT: -: {{[0-9]+}}: foo(1);
54// AFTER: 1: {{[0-9]+}}: __gcov_dump();
55// AFTER-NEXT: 1: {{[0-9]+}}: __gcov_reset();
56// AFTER: -: {{[0-9]+}}:#ifdef SHARED_CALL_AFTER_FLUSH
57// AFTER-NEXT: 1: {{[0-9]+}}: foo(1);
58// AFTER: 1: {{[0-9]+}}: bar(5);
59
60// # Test the case where we exit normally and we have calls to the shared library function before and after __gcov_dump.
61// RUN: %clang -DSHARED_CALL_BEFORE_FLUSH -DSHARED_CALL_AFTER_FLUSH --coverage %s -L%t.d -rpath %t.d -lfunc -o %t -dumpdir ./
62// RUN: test -f gcov-shared-flush.gcno
63
64// RUN: rm -f gcov-shared-flush.gcda shared.gcda
65// RUN: %run %t
66// RUN: llvm-cov gcov -t gcov-shared-flush.gcda | FileCheck %s --check-prefix=BEFORE_AFTER
67// RUN: llvm-cov gcov -t shared.gcda | FileCheck %s --check-prefix=SHARED_TWICE
68
69// BEFORE_AFTER: -: {{[0-9]+}}:#ifdef SHARED_CALL_BEFORE_FLUSH
70// BEFORE_AFTER-NEXT: 1: {{[0-9]+}}: foo(1);
71// BEFORE_AFTER: 1: {{[0-9]+}}: __gcov_dump();
72// BEFORE_AFTER-NEXT: 1: {{[0-9]+}}: __gcov_reset();
73// BEFORE_AFTER: -: {{[0-9]+}}:#ifdef SHARED_CALL_AFTER_FLUSH
74// BEFORE_AFTER-NEXT: 1: {{[0-9]+}}: foo(1);
75// BEFORE_AFTER: 1: {{[0-9]+}}: bar(5);
76
77// SHARED_TWICE: 2: {{[0-9]+}}:void foo(int n)
78
79#ifdef SHARED
80void foo(int n) {
81}
82#else
83extern void foo(int n);
84extern void __gcov_dump(void);
85extern void __gcov_reset(void);
86extern void _exit(int) __attribute__((noreturn));
87
88int bar1 = 0;
89int bar2 = 1;
90
91void bar(int n) {
92 if (n % 5 == 0)
93 bar1++;
94 else
95 bar2++;
96}
97
98int main(int argc, char *argv[]) {
99#ifdef SHARED_CALL_BEFORE_FLUSH
100 foo(1);
101#endif
102
103 bar(n: 5);
104 __gcov_dump();
105 __gcov_reset();
106 bar(n: 5);
107
108#ifdef SHARED_CALL_AFTER_FLUSH
109 foo(1);
110#endif
111
112#ifdef EXIT_ABRUPTLY
113 _exit(0);
114#endif
115
116 bar(n: 5);
117 return 0;
118}
119#endif
120

source code of compiler-rt/test/profile/Posix/gcov-shared-flush.c