1/// atexit(3) not supported in dlopen(3)ed+dlclose(3)d DSO
2// XFAIL: target={{.*netbsd.*}}
3// XFAIL: target={{.*haiku.*}}
4
5// RUN: mkdir -p %t.d && cd %t.d
6
7// RUN: echo 'void func1(int k) {}' > func1.c
8// RUN: echo 'void func2(int k) {}' > func2.c
9// RUN: echo 'void func3(int k) {}' > func3.c
10// RUN: %clang --coverage -fPIC -shared func1.c -o func1.so -dumpdir ./
11// RUN: %clang --coverage -fPIC -shared func2.c -o func2.so -dumpdir ./
12// RUN: %clang --coverage -fPIC -shared func3.c -o func3.so -dumpdir ./
13// RUN: %clang --coverage -fPIC -rpath %t.d %s -o %t -dumpdir ./
14
15/// Test with two dlopened libraries.
16// RUN: rm -f gcov-dlopen.gcda func1.gcda func2.gcda
17// RUN: %run %t
18// RUN: llvm-cov gcov -t gcov-dlopen.gcda | FileCheck %s
19// RUN: llvm-cov gcov -t func1.gcda | FileCheck %s --check-prefix=FUNC1
20// RUN: llvm-cov gcov -t func2.gcda | FileCheck %s --check-prefix=FUNC2
21
22// FUNC1: 1: 1:void func1(int k) {}
23// FUNC2: 1: 1:void func2(int k) {}
24
25/// Test with three dlopened libraries.
26// RUN: %clang -DUSE_LIB3 --coverage -fPIC -rpath %t.d %s -o %t -dumpdir ./
27// RUN: rm -f gcov-dlopen.gcda func1.gcda func2.gcda func3.gcda
28// RUN: %run %t
29// RUN: llvm-cov gcov -t gcov-dlopen.gcda | FileCheck %s --check-prefix=LIB3
30// RUN: llvm-cov gcov -t func1.gcda | FileCheck %s --check-prefix=FUNC1
31// RUN: llvm-cov gcov -t func2.gcda | FileCheck %s --check-prefix=FUNC2
32// RUN: llvm-cov gcov -t func3.gcda | FileCheck %s --check-prefix=FUNC3
33
34// FUNC3: 1: 1:void func3(int k) {}
35
36#include <dlfcn.h>
37#include <stdio.h>
38#include <stdlib.h>
39
40int main(int argc, char *argv[]) {
41 void *f1_handle = dlopen(file: "func1.so", RTLD_LAZY | RTLD_GLOBAL);
42 if (f1_handle == NULL)
43 return fprintf(stderr, format: "unable to open 'func1.so': %s\n", dlerror());
44 void (*func1)(void) = (void (*)(void))dlsym(handle: f1_handle, name: "func1");
45 if (func1 == NULL)
46 return fprintf(stderr, format: "unable to lookup symbol 'func1': %s\n", dlerror());
47
48 void *f2_handle = dlopen(file: "func2.so", RTLD_LAZY | RTLD_GLOBAL);
49 if (f2_handle == NULL)
50 return fprintf(stderr, format: "unable to open 'func2.so': %s\n", dlerror());
51 void (*func2)(void) = (void (*)(void))dlsym(handle: f2_handle, name: "func2");
52 if (func2 == NULL)
53 return fprintf(stderr, format: "unable to lookup symbol 'func2': %s\n", dlerror());
54 func2();
55
56#ifdef USE_LIB3
57// CHECK: -: [[#@LINE+2]]: void *f3_handle
58// LIB3: 1: [[#@LINE+1]]: void *f3_handle
59 void *f3_handle = dlopen("func3.so", RTLD_LAZY | RTLD_GLOBAL);
60 if (f3_handle == NULL)
61 return fprintf(stderr, "unable to open 'func3.so': %s\n", dlerror());
62 void (*func3)(void) = (void (*)(void))dlsym(f3_handle, "func3");
63 if (func3 == NULL)
64 return fprintf(stderr, "unable to lookup symbol 'func3': %s\n", dlerror());
65 func3();
66#endif
67
68 void (*gcov_reset1)() = (void (*)())dlsym(handle: f1_handle, name: "__gcov_reset");
69 if (gcov_reset1 == NULL)
70 return fprintf(stderr, format: "unable to find __gcov_reset in func1.so': %s\n", dlerror());
71 void (*gcov_reset2)() = (void (*)())dlsym(handle: f2_handle, name: "__gcov_reset");
72 if (gcov_reset2 == NULL)
73 return fprintf(stderr, format: "unable to find __gcov_reset in func2.so': %s\n", dlerror());
74 if (gcov_reset1 == gcov_reset2)
75 return fprintf(stderr, format: "same __gcov_reset found in func1.so and func2.so\n");
76
77 /// Test that __gcov_dump is in the dynamic symbol table.
78 void (*gcov_dump1)() = (void (*)())dlsym(handle: f1_handle, name: "__gcov_dump");
79 if (gcov_dump1 == NULL)
80 return fprintf(stderr, format: "unable to find __gcov_dump in func1.so': %s\n", dlerror());
81
82 if (dlclose(handle: f2_handle) != 0)
83 return fprintf(stderr, format: "unable to close 'func2.so': %s\n", dlerror());
84
85 func1();
86
87 return 0;
88}
89

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