1// RUN: %clangxx_asan -fsanitize-coverage=bb -DSHARED %s -shared -o %dynamiclib -fPIC %ld_flags_rpath_so
2// RUN: %clangxx_asan -fsanitize-coverage=func %s -o %t %ld_flags_rpath_exe
3
4// RUN: rm -rf %T/coverage_sandboxing_test
5// RUN: mkdir %T/coverage_sandboxing_test && cd %T/coverage_sandboxing_test
6// RUN: mkdir vanilla && cd vanilla
7// RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t 2>&1  | FileCheck %s --check-prefix=CHECK-vanilla
8// RUN: mkdir ../sandbox1 && cd ../sandbox1
9// RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t a 2>&1 | FileCheck %s --check-prefix=CHECK-sandbox
10// RUN: %sancov unpack coverage_sandboxing_test.sancov.packed
11// RUN: mkdir ../sandbox2 && cd ../sandbox2
12// RUN: %env_asan_opts=coverage=1:verbosity=1 %run %t a b 2>&1 | FileCheck %s --check-prefix=CHECK-sandbox
13// RUN: %sancov unpack coverage_sandboxing_test.sancov.packed
14// RUN: cd ..
15// RUN: %sancov print vanilla/`basename %dynamiclib`*.sancov > vanilla.txt
16// RUN: %sancov print sandbox1/`basename %dynamiclib`*.sancov > sandbox1.txt
17// RUN: %sancov print sandbox2/`basename %dynamiclib`*.sancov > sandbox2.txt
18// RUN: diff vanilla.txt sandbox1.txt
19// RUN: diff vanilla.txt sandbox2.txt
20// RUN: rm -r %T/coverage_sandboxing_test
21
22// https://code.google.com/p/address-sanitizer/issues/detail?id=263
23// XFAIL: android
24
25#include <assert.h>
26#include <fcntl.h>
27#include <stdio.h>
28#include <string.h>
29#include <unistd.h>
30
31#include <sanitizer/coverage_interface.h>
32
33#define bb0(n)                        \
34  case n:                             \
35    fprintf(stderr, "foo: %d\n", n);  \
36    break;
37
38#define bb1(n) bb0(n) bb0(n + 1)
39#define bb2(n) bb1(n) bb1(n + 2)
40#define bb3(n) bb2(n) bb2(n + 4)
41#define bb4(n) bb3(n) bb3(n + 8)
42#define bb5(n) bb4(n) bb4(n + 16)
43#define bb6(n) bb5(n) bb5(n + 32)
44#define bb7(n) bb6(n) bb6(n + 64)
45#define bb8(n) bb7(n) bb7(n + 128)
46
47#ifdef SHARED
48void foo(int i) {
49  switch(i) {
50    // 256 basic blocks
51    bb8(0)
52  }
53}
54#else
55extern void foo(int i);
56
57int main(int argc, char **argv) {
58  assert(argc <= 3);
59  for (int i = 0; i < 256; i++) foo(i);
60  fprintf(stderr, "PID: %d\n", getpid());
61  if (argc == 1) {
62    // Vanilla mode, dump to individual files.
63    return 0;
64  }
65  // Dump to packed file.
66  int fd = creat("coverage_sandboxing_test.sancov.packed", 0660);
67  __sanitizer_sandbox_arguments args = {0};
68  args.coverage_sandboxed = 1;
69  args.coverage_fd = fd;
70  if (argc == 2)
71    // Write to packed file, do not split into blocks.
72    args.coverage_max_block_size = 0;
73  else if (argc == 3)
74    // Write to packed file, split into blocks (as if writing to a socket).
75    args.coverage_max_block_size = 100;
76  __sanitizer_sandbox_on_notify(&args);
77  return 0;
78}
79#endif
80
81// CHECK-vanilla: PID: [[PID:[0-9]+]]
82// CHECK-vanilla: .so.[[PID]].sancov: 257 PCs written
83// CHECK-vanilla: [[PID]].sancov: 1 PCs written
84
85// CHECK-sandbox: PID: [[PID:[0-9]+]]
86// CHECK-sandbox: 257 PCs written to packed file
87