compiler-rt/test/sanitizer_common/TestCases/sanitizer_coverage_trace_pc_guard-dso.cpp

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