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> 31 volatile int sink; 32 __attribute__((noinline)) void foo() { sink++; } 33 __attribute__((noinline)) void bar() { sink++; } 34 35 int 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
