compiler-rt/test/tsan/debug_mutex_bad_unlock.cpp

   1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
   2
   3 #include "test.h"
   4
   5 extern "C" {
   6 void __tsan_on_report(void *report);
   7 void *__tsan_get_current_report();
   8 int __tsan_get_report_data(void *report, const char **description, int *count,
   9                            int *stack_count, int *mop_count, int *loc_count,
  10                            int *mutex_count, int *thread_count,
  11                            int *unique_tid_count, void **sleep_trace,
  12                            unsigned long trace_size);
  13 int __tsan_get_report_stack(void *report, unsigned long idx, void **trace,
  14                             unsigned long trace_size);
  15 int __tsan_get_report_mutex(void *report, unsigned long idx, uint64_t *mutex_id,
  16                             void **addr, int *destroyed, void **trace,
  17                             unsigned long trace_size);
  18 }
  19
  20 int main() {
  21   int m = 0;
  22   fprintf(stderr, "&m = %p\n", &m);
  23   // CHECK: &m = [[MUTEX:0x[0-9a-f]+]]
  24   AnnotateRWLockReleased(__FILE__, __LINE__, &m, 1);
  25   fprintf(stderr, "Done.\n");
  26   return 0;
  27 }
  28
  29 // Required for dyld macOS 12.0+
  30 #if (__APPLE__)
  31 __attribute__((weak))
  32 #endif
  33 __attribute__((disable_sanitizer_instrumentation)) extern "C" void
  34 __tsan_on_report(void *report) {
  35   fprintf(stderr, "__tsan_on_report(%p)\n", report);
  36   fprintf(stderr, "__tsan_get_current_report() = %p\n",
  37           __tsan_get_current_report());
  38   // CHECK: __tsan_on_report([[REPORT:0x[0-9a-f]+]])
  39   // CHECK: __tsan_get_current_report() = [[REPORT]]
  40
  41   const char *description;
  42   int count;
  43   int stack_count, mop_count, loc_count, mutex_count, thread_count,
  44       unique_tid_count;
  45   void *sleep_trace[16] = {0};
  46   __tsan_get_report_data(report, &description, &count, &stack_count, &mop_count,
  47                          &loc_count, &mutex_count, &thread_count,
  48                          &unique_tid_count, sleep_trace, 16);
  49
  50   fprintf(stderr, "stack_count = %d\n", stack_count);
  51   // CHECK: stack_count = 1
  52
  53   fprintf(stderr, "mutex_count = %d\n", mutex_count);
  54   // CHECK: mutex_count = 1
  55
  56   void *trace[16] = {0};
  57   __tsan_get_report_stack(report, 0, trace, 16);
  58
  59   fprintf(stderr, "trace[0] = %p, trace[1] = %p, trace[2] = %p\n", trace[0],
  60           trace[1], trace[2]);
  61   // CHECK: trace[0] = 0x{{[0-9a-f]+}}, trace[1] = 0x{{[0-9a-f]+}}, trace[2] =
  62   // {{0x0|\(nil\)|\(null\)}}
  63
  64   uint64_t mutex_id;
  65   void *addr;
  66   int destroyed;
  67   __tsan_get_report_mutex(report, 0, &mutex_id, &addr, &destroyed, trace, 16);
  68   fprintf(stderr, "addr = %p, destroyed = %d\n", addr, destroyed);
  69   // CHECK: addr = [[MUTEX]], destroyed = 0
  70   fprintf(stderr, "trace[0] = %p, trace[1] = %p, trace[2] = %p\n", trace[0],
  71           trace[1], trace[2]);
  72   // CHECK: trace[0] = 0x{{[0-9a-f]+}}, trace[1] = 0x{{[0-9a-f]+}}, trace[2] =
  73   // {{0x0|\(nil\)|\(null\)}}
  74 }
  75
  76 // CHECK: Done.
  77 // CHECK: ThreadSanitizer: reported 1 warnings