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   1 // Tests trace pc guard coverage collection.
   2 //
   3 // REQUIRES: has_sancovcc,stable-runtime
   4 // XFAIL: tsan,darwin,powerpc64,s390x
   5 //
   6 // RUN: DIR=%t_workdir
   7 // RUN: rm -rf $DIR
   8 // RUN: mkdir -p $DIR
   9 // RUN: cd $DIR
  10 // RUN: %clangxx -O0 -fsanitize-coverage=trace-pc-guard %s -ldl -o %t
  11 // RUN: %env_tool_opts=coverage=1 %t 2>&1 | FileCheck %s
  12 // RUN: %sancovcc  -covered-functions -strip_path_prefix=TestCases/ *.sancov %t 2>&1 | \
  13 // RUN:   FileCheck --check-prefix=CHECK-SANCOV %s
  14 // RUN: %env_tool_opts=coverage=0 %t 2>&1 | FileCheck --check-prefix=CHECK-NOCOV %s
  15 // RUN: rm -rf $DIR
  16 // Make some room to stabilize line numbers
  17 //
  18 //
  19 //
  20 #include <stdio.h>
  21
  22 int foo() {
  23   fprintf(stderr, "foo\n");
  24   return 1;
  25 }
  26
  27 int main() {
  28   fprintf(stderr, "main\n");
  29   foo();
  30   foo();
  31 }
  32
  33 // CHECK: main
  34 // CHECK-NEXT: foo
  35 // CHECK-NEXT: foo
  36 // CHECK-NEXT: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard.{{.*}}.sancov 2 PCs written
  37 //
  38 // CHECK-SANCOV: sanitizer_coverage_trace_pc_guard.cc:22 foo
  39 // CHECK-SANCOV-NEXT: sanitizer_coverage_trace_pc_guard.cc:27 main
  40 //
  41 // CHECK-NOCOV-NOT: SanitizerCoverage