1// Test -fsanitize-coverage=trace-bb
2//
3// RUN: %clangxx_asan -O1 -fsanitize-coverage=func,trace-bb %s -o %t
4// RUN: rm -rf   %T/coverage-tracing
5// RUN: mkdir %T/coverage-tracing
6// RUN: cd %T/coverage-tracing
7// RUN:  A=x;   %env_asan_opts=coverage=1:verbosity=1 %run %t $A 1   2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK1; mv trace-points.*.sancov $A.points
8// RUN:  A=f;   %env_asan_opts=coverage=1:verbosity=1 %run %t $A 1   2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK2; mv trace-points.*.sancov $A.points
9// RUN:  A=b;   %env_asan_opts=coverage=1:verbosity=1 %run %t $A 1   2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK2; mv trace-points.*.sancov $A.points
10// RUN:  A=bf;  %env_asan_opts=coverage=1:verbosity=1 %run %t $A 1   2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK3; mv trace-points.*.sancov $A.points
11// RUN:  A=fb;  %env_asan_opts=coverage=1:verbosity=1 %run %t $A 1   2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK3; mv trace-points.*.sancov $A.points
12// RUN:  A=ffb; %env_asan_opts=coverage=1:verbosity=1 %run %t $A 1   2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK4; mv trace-points.*.sancov $A.points
13// RUN:  A=fff; %env_asan_opts=coverage=1:verbosity=1 %run %t $A 1   2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK4; mv trace-points.*.sancov $A.points
14// RUN:  A=bbf; %env_asan_opts=coverage=1:verbosity=1 %run %t $A 100 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK301; mv trace-points.*.sancov $A.points
15// RUN: diff f.points fff.points
16// RUN: diff bf.points fb.points
17// RUN: diff bf.points ffb.points
18// RUN: diff bf.points bbf.points
19// RUN: not diff x.points f.points
20// RUN: not diff x.points b.points
21// RUN: not diff x.points bf.points
22// RUN: not diff f.points b.points
23// RUN: not diff f.points bf.points
24// RUN: not diff b.points bf.points
25// RUN: rm -rf   %T/coverage-tracing
26//
27// REQUIRES: asan-64-bits
28// UNSUPPORTED: android
29
30#include <stdlib.h>
31volatile int sink;
32__attribute__((noinline)) void foo() { sink++; }
33__attribute__((noinline)) void bar() { sink++; }
34
35int main(int argc, char **argv) {
36  if (argc != 3) return 0;
37  int n = strtol(argv[2], 0, 10);
38  while (n-- > 0) {
39    for (int i = 0; argv[1][i]; i++) {
40      if (argv[1][i] == 'f') foo();
41      else if (argv[1][i] == 'b') bar();
42    }
43  }
44}
45
46// CHECK: CovDump: Trace: 3 PCs written
47// CHECK1: CovDump: Trace: 1 Events written
48// CHECK2: CovDump: Trace: 2 Events written
49// CHECK3: CovDump: Trace: 3 Events written
50// CHECK4: CovDump: Trace: 4 Events written
51// CHECK301: CovDump: Trace: 301 Events written
52