test/sanitizer_common/TestCases/sanitizer_coverage_trace_pc_guard-dso.cc

   1 // Tests trace pc guard coverage collection.
   2
   3 // REQUIRES: has_sancovcc,stable-runtime
   4 // UNSUPPORTED: ubsan
   5 // XFAIL: tsan,darwin,powerpc64,s390x,mips
   6 // XFAIL: android && asan
   7
   8 // RUN: DIR=%t_workdir
   9 // RUN: CLANG_ARGS="-O0 -fsanitize-coverage=trace-pc-guard"
  10 // RUN: rm -rf $DIR
  11 // RUN: mkdir -p $DIR
  12 // RUN: cd $DIR
  13 // RUN: %clangxx -DSHARED1 $CLANG_ARGS -shared %s -o %t_1.so -fPIC
  14 // RUN: %clangxx -DSHARED2 $CLANG_ARGS -shared %s -o %t_2.so -fPIC
  15 // RUN: %clangxx -DMAIN $CLANG_ARGS %s -o %t %t_1.so %t_2.so
  16 // RUN: %env_tool_opts=coverage=1 %t 2>&1 | FileCheck %s
  17 // RUN: %sancovcc  -covered-functions -strip_path_prefix=TestCases/ *.sancov \
  18 // RUN:            %t %t_1.so %t_2.so 2>&1 | \
  19 // RUN:   FileCheck --check-prefix=CHECK-SANCOV %s
  20 // RUN: rm -rf $DIR
  21
  22 #include <stdio.h>
  23
  24 extern "C" {
  25   int bar();
  26   int baz();
  27 }
  28
  29 #ifdef MAIN
  30
  31 int foo() {
  32   fprintf(stderr, "foo\n");
  33   return 1;
  34 }
  35
  36 int main() {
  37   fprintf(stderr, "main\n");
  38   foo();
  39   bar();
  40   baz();
  41 }
  42
  43 #endif // MAIN
  44
  45 extern "C" {
  46
  47 #ifdef SHARED1
  48 int bar() {
  49   fprintf(stderr, "bar\n");
  50   return 1;
  51 }
  52 #endif
  53
  54 #ifdef SHARED2
  55 int baz() {
  56   fprintf(stderr, "baz\n");
  57   return 1;
  58 }
  59 #endif
  60
  61 } // extern "C"
  62
  63 // CHECK: main
  64 // CHECK-NEXT: foo
  65 // CHECK-NEXT: bar
  66 // CHECK-NEXT: baz
  67 // CHECK-DAG: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard-dso.{{.*}}.sancov: 2 PCs written
  68 // CHECK-DAG: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard-dso.{{.*}}_2.so.{{.*}}.sancov: 1 PCs written
  69 // CHECK-DAG: SanitizerCoverage: ./sanitizer_coverage_trace_pc_guard-dso.{{.*}}_1.so.{{.*}}.sancov: 1 PCs written
  70 //
  71 // CHECK-SANCOV: Ignoring {{.*}}_1.so and its coverage because __sanitizer_cov* functions were not found.
  72 // CHECK-SANCOV: Ignoring {{.*}}_2.so and its coverage because __sanitizer_cov* functions were not found.
  73 // CHECK-SANCOV-NEXT: sanitizer_coverage_trace_pc_guard-dso.cc:[[@LINE-42]] foo
  74 // CHECK-SANCOV-NEXT: sanitizer_coverage_trace_pc_guard-dso.cc:[[@LINE-38]] main