1 // Test for "sancov.py missing ...".
2
3 // First case: coverage from executable. main() is called on every code path.
4 // RUN: %clangxx_asan -fsanitize-coverage=func,trace-pc-guard %s -o %t -DFOOBAR -DMAIN
5 // RUN: rm -rf %t-dir
6 // RUN: mkdir -p %t-dir
7 // RUN: cd %t-dir
8 // RUN: %env_asan_opts=coverage=1:coverage_dir=%t-dir %run %t
9 // RUN: %sancov print *.sancov > main.txt
10 // RUN: rm *.sancov
11 // RUN: count 1 < main.txt
12 // RUN: %env_asan_opts=coverage=1:coverage_dir=%t-dir %run %t x
13 // RUN: %sancov print *.sancov > foo.txt
14 // RUN: rm *.sancov
15 // RUN: count 3 < foo.txt
16 // RUN: %env_asan_opts=coverage=1:coverage_dir=%t-dir %run %t x x
17 // RUN: %sancov print *.sancov > bar.txt
18 // RUN: rm *.sancov
19 // RUN: count 4 < bar.txt
20 // RUN: %sancov missing %t < foo.txt > foo-missing.txt
21 // RUN: sort main.txt foo-missing.txt -o foo-missing-with-main.txt
22 // The "missing from foo" set may contain a few bogus PCs from the sanitizer
23 // runtime, but it must include the entire "bar" code path as a subset. Sorted
24 // lists can be tested for set inclusion with diff + grep.
25 // RUN: diff bar.txt foo-missing-with-main.txt > %t.log || true
26 // RUN: not grep "^<" %t.log
27
28 // Second case: coverage from DSO.
29 // cd %t-dir
30 // RUN: %clangxx_asan -fsanitize-coverage=func,trace-pc-guard %s -o %dynamiclib -DFOOBAR -shared -fPIC
31 // RUN: %clangxx_asan -fsanitize-coverage=func,trace-pc-guard %s %dynamiclib -o %t -DMAIN
32 // RUN: cd ..
33 // RUN: rm -rf %t-dir
34 // RUN: mkdir -p %t-dir
35 // RUN: cd %t-dir
36 // RUN: %env_asan_opts=coverage=1:coverage_dir=%t-dir %run %t x
37 // RUN: %sancov print %xdynamiclib_filename.*.sancov > foo.txt
38 // RUN: rm *.sancov
39 // RUN: count 2 < foo.txt
40 // RUN: %env_asan_opts=coverage=1:coverage_dir=%t-dir %run %t x x
41 // RUN: %sancov print %xdynamiclib_filename.*.sancov > bar.txt
42 // RUN: rm *.sancov
43 // RUN: count 3 < bar.txt
44 // RUN: %sancov missing %dynamiclib < foo.txt > foo-missing.txt
45 // RUN: diff bar.txt foo-missing.txt > %t.log || true
46 // RUN: not grep "^<" %t.log
47
48 // FIXME %sancov GetInstrumentedPCs relies on objdump -d to
49 // obtain the number of instrumented PCs. The i386
50 // %dynamiclib has .plt entries that are not recognized by
51 // objdump,
52 // "sancov.py: found 0 instrumented PCs in *.so",
53 // causing AddressSanitizer-i386-linux to fail.
54 // Change it back to x86-target-arch after %sancov switches to a more robust approach.
55
56 // REQUIRES: x86_64-target-arch
57 // XFAIL: android
58
59 #include <stdio.h>
60
61 void foo1();
62 void foo2();
63 void bar1();
64 void bar2();
65 void bar3();
66
67 #if defined(FOOBAR)
foo1()68 void foo1() { fprintf(stderr, "foo1\n"); }
foo2()69 void foo2() { fprintf(stderr, "foo2\n"); }
70
bar1()71 void bar1() { fprintf(stderr, "bar1\n"); }
bar2()72 void bar2() { fprintf(stderr, "bar2\n"); }
bar3()73 void bar3() { fprintf(stderr, "bar3\n"); }
74 #endif
75
76 #if defined(MAIN)
main(int argc,char ** argv)77 int main(int argc, char **argv) {
78 switch (argc) {
79 case 1:
80 break;
81 case 2:
82 foo1();
83 foo2();
84 break;
85 case 3:
86 bar1();
87 bar2();
88 bar3();
89 break;
90 }
91 }
92 #endif
93