coverage.cc revision 2d1fdb26e458c4ddc04155c1d421bced3ba90cd0 
1// RUN: %clangxx_asan -mllvm -asan-coverage=1 -DSHARED %s -shared -o %T/libcoverage_test.so -fPIC
2// RUN: %clangxx_asan -mllvm -asan-coverage=1 %s   -o %t -Wl,-R,\$ORIGIN -L%T -lcoverage_test
3// RUN: export ASAN_OPTIONS=coverage=1:verbosity=1
4// RUN: mkdir -p %T/coverage && cd %T/coverage
5// RUN: %run %t 2>&1         | FileCheck %s --check-prefix=CHECK-main
6// RUN: %run %t foo 2>&1     | FileCheck %s --check-prefix=CHECK-foo
7// RUN: %run %t bar 2>&1     | FileCheck %s --check-prefix=CHECK-bar
8// RUN: %run %t foo bar 2>&1 | FileCheck %s --check-prefix=CHECK-foo-bar
9// RUN: not %run %t foo bar 4    2>&1 | FileCheck %s --check-prefix=CHECK-report
10// RUN: not %run %t foo bar 4 5  2>&1 | FileCheck %s --check-prefix=CHECK-segv
11// RUN: cd .. && rm coverage -r
12//
13// https://code.google.com/p/address-sanitizer/issues/detail?id=263
14// XFAIL: android
15
16#include <stdio.h>
17#include <string.h>
18#include <unistd.h>
19
20#ifdef SHARED
21void bar() { printf("bar\n"); }
22#else
23__attribute__((noinline))
24void foo() { printf("foo\n"); }
25extern void bar();
26
27int G[4];
28
29int main(int argc, char **argv) {
30  fprintf(stderr, "PID: %d\n", getpid());
31  for (int i = 1; i < argc; i++) {
32    if (!strcmp(argv[i], "foo"))
33      foo();
34    if (!strcmp(argv[i], "bar"))
35      bar();
36  }
37  if (argc == 5) {
38    static volatile char *zero = 0;
39    *zero = 0;  // SEGV if argc == 5.
40  }
41  return G[argc];  // Buffer overflow if argc >= 4.
42}
43#endif
44
45// CHECK-main: PID: [[PID:[0-9]+]]
46// CHECK-main: [[PID]].sancov: 1 PCs written
47// CHECK-main-NOT: .so.[[PID]]
48//
49// CHECK-foo: PID: [[PID:[0-9]+]]
50// CHECK-foo: [[PID]].sancov: 2 PCs written
51// CHECK-foo-NOT: .so.[[PID]]
52//
53// CHECK-bar: PID: [[PID:[0-9]+]]
54// CHECK-bar: [[PID]].sancov: 1 PCs written
55// CHECK-bar: .so.[[PID]].sancov: 1 PCs written
56//
57// CHECK-foo-bar: PID: [[PID:[0-9]+]]
58// CHECK-foo-bar: [[PID]].sancov: 2 PCs written
59// CHECK-foo-bar: so.[[PID]].sancov: 1 PCs written
60//
61// CHECK-report: AddressSanitizer: global-buffer-overflow
62// CHECK-report: PCs written
63//
64// CHECK-segv: AddressSanitizer: SEGV
65// CHECK-segv: PCs written
66