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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: CLANG_ARGS="-O0 -fsanitize-coverage=trace-pc-guard"
   8 // RUN: rm -rf $DIR
   9 // RUN: mkdir -p $DIR
  10 // RUN: cd $DIR
  11 // RUN: %clangxx -DSHARED1 $CLANG_ARGS -shared %s -o %t_1.so -fPIC
  12 // RUN: %clangxx -DSHARED2 $CLANG_ARGS -shared %s -o %t_2.so -fPIC
  13 // RUN: %clangxx -DMAIN $CLANG_ARGS %s -o %t %t_1.so %t_2.so
  14 // RUN: %env_tool_opts=coverage=1 %t 2>&1 | FileCheck %s
  15 // RUN: %sancovcc  -covered-functions -strip_path_prefix=TestCases/ *.sancov \
  16 // RUN:            %t %t_1.so %t_2.so 2>&1 | \
  17 // RUN:   FileCheck --check-prefix=CHECK-SANCOV %s
  18 // RUN: rm -rf $DIR
  19
  20 #include <stdio.h>
  21
  22 extern "C" {
  23   int bar();
  24   int baz();
  25 }
  26
  27 #ifdef MAIN
  28
  29 int foo() {
  30   fprintf(stderr, "foo\n");
  31   return 1;
  32 }
  33
  34 int main() {
  35   fprintf(stderr, "main\n");
  36   foo();
  37   bar();
  38   baz();
  39 }
  40
  41 #endif // MAIN
  42
  43 extern "C" {
  44
  45 #ifdef SHARED1
  46 int bar() {
  47   fprintf(stderr, "bar\n");
  48   return 1;
  49 }
  50 #endif
  51
  52 #ifdef SHARED2
  53 int baz() {
  54   fprintf(stderr, "baz\n");
  55   return 1;
  56 }
  57 #endif
  58
  59 } // extern "C"
  60
  61 // CHECK: main
  62 // CHECK-NEXT: foo
  63 // CHECK-NEXT: bar
  64 // CHECK-NEXT: baz
  65 // CHECK-DAG: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard-dso.{{.*}}.sancov 2 PCs written
  66 // CHECK-DAG: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard-dso.{{.*}}_2.so.{{.*}}.sancov 1 PCs written
  67 // CHECK-DAG: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard-dso.{{.*}}_1.so.{{.*}}.sancov 1 PCs written
  68 //
  69 // CHECK-SANCOV: Ignoring {{.*}}_1.so and its coverage because __sanitizer_cov* functions were not found.
  70 // CHECK-SANCOV: Ignoring {{.*}}_2.so and its coverage because __sanitizer_cov* functions were not found.
  71 // CHECK-SANCOV-NEXT: sanitizer_coverage_trace_pc_guard-dso.cc:29 foo
  72 // CHECK-SANCOV-NEXT: sanitizer_coverage_trace_pc_guard-dso.cc:34 main