compiler-rt/test/sanitizer_common/TestCases/sanitizer_coverage_inline8bit_counter.cpp

   1 // Tests -fsanitize-coverage=inline-8bit-counters,pc-table
   2 //
   3 // REQUIRES: has_sancovcc,stable-runtime
   4 // UNSUPPORTED: i386-darwin
   5 //
   6 // RUN: %clangxx -O0 %s -fsanitize-coverage=inline-8bit-counters,pc-table -o %t
   7 // RUN: %run %t 2>&1 | FileCheck %s
   8
   9 #include <stdio.h>
  10 #include <stdint.h>
  11 #include <assert.h>
  12
  13 const char *first_counter;
  14
  15 extern "C"
  16 void __sanitizer_cov_8bit_counters_init(const char *start, const char *end) {
  17   printf("INIT: %p %p\n", start, end);
  18   assert(end - start > 1);
  19   first_counter = start;
  20 }
  21
  22 uintptr_t FirstPC;
  23 uintptr_t FirstPCFlag;
  24
  25 extern "C" void __sanitizer_cov_pcs_init(const uintptr_t *pcs_beg,
  26                                          const uintptr_t *pcs_end) {
  27   const uintptr_t *B = (const uintptr_t *)pcs_beg;
  28   const uintptr_t *E = (const uintptr_t *)pcs_end;
  29   assert(B + 1 < E);
  30   FirstPC = B[0];
  31   FirstPCFlag = B[1];
  32 }
  33
  34
  35 int main() {
  36   assert(first_counter);
  37   assert(*first_counter == 1);
  38   assert(FirstPC == (uintptr_t)&main);
  39   assert(FirstPCFlag == 1);
  40   fprintf(stderr, "PASS\n");
  41   // CHECK: PASS
  42 }