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

   1 // Tests trace pc guard coverage collection.
   2 //
   3 // REQUIRES: has_sancovcc,stable-runtime,x86_64-linux
   4 //
   5 // RUN: DIR=%t_workdir
   6 // RUN: CLANG_ARGS="-O0 -fsanitize-coverage=trace-pc-guard"
   7 // RUN: rm -rf $DIR
   8 // RUN: mkdir -p $DIR
   9 // RUN: cd $DIR
  10 // RUN: %clangxx -DSHARED1 $CLANG_ARGS -shared %s -o %t_1.so -fPIC
  11 // RUN: %clangxx -DSTATIC1 $CLANG_ARGS %s -c -o %t_2.o
  12 // RUN: %clangxx -DMAIN $CLANG_ARGS %s -o %t %t_1.so %t_2.o
  13 // RUN: %env_tool_opts=coverage=1 %t 2>&1 | FileCheck %s
  14 // RUN: rm -rf $DIR
  15
  16 #include <stdio.h>
  17 #include <stdint.h>
  18 #include <stdlib.h>
  19
  20 extern "C" {
  21   int bar();
  22   int baz();
  23 }
  24
  25 #ifdef MAIN
  26
  27 extern "C" void __sanitizer_cov_trace_pc_guard_init(uint32_t *start, uint32_t *stop) {
  28   fprintf(stderr, "__sanitizer_cov_trace_pc_guard_init\n");
  29 }
  30
  31 extern "C" void __sanitizer_cov_trace_pc_guard(uint32_t *guard) { }
  32
  33
  34 int foo() {
  35   fprintf(stderr, "foo\n");
  36   return 1;
  37 }
  38
  39 int main() {
  40   fprintf(stderr, "main\n");
  41   foo();
  42   bar();
  43   baz();
  44 }
  45
  46 #endif // MAIN
  47
  48 extern "C" {
  49
  50 #ifdef SHARED1
  51 int bar() {
  52   fprintf(stderr, "bar\n");
  53   return 1;
  54 }
  55 #endif
  56
  57 #ifdef STATIC1
  58 int baz() {
  59   fprintf(stderr, "baz\n");
  60   return 1;
  61 }
  62 #endif
  63
  64 } // extern "C"
  65
  66 // Init is called once per DSO.
  67 // CHECK: __sanitizer_cov_trace_pc_guard_init
  68 // CHECK-NEXT: __sanitizer_cov_trace_pc_guard_init
  69 // CHECK-NEXT: main
  70 // CHECK-NEXT: foo
  71 // CHECK-NEXT: bar
  72 // CHECK-NEXT: baz