ceph/src/rocksdb/port/stack_trace.h

   1 //  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
   2 //  This source code is licensed under both the GPLv2 (found in the
   3 //  COPYING file in the root directory) and Apache 2.0 License
   4 //  (found in the LICENSE.Apache file in the root directory).
   5 //
   6 #pragma once
   7
   8 #include "rocksdb/rocksdb_namespace.h"
   9
  10 namespace ROCKSDB_NAMESPACE {
  11 namespace port {
  12
  13 // Install a signal handler to print callstack on the following signals:
  14 // SIGILL SIGSEGV SIGBUS SIGABRT
  15 // And also (Linux ony for now) overrides security settings to allow outside
  16 // processes to attach to this one as a debugger. ONLY USE FOR NON-SECURITY
  17 // CRITICAL PROCESSES such as unit tests or benchmarking tools.
  18 // Currently supports only some POSIX implementations. No-op otherwise.
  19 void InstallStackTraceHandler();
  20
  21 // Prints stack, skips skip_first_frames frames
  22 void PrintStack(int first_frames_to_skip = 0);
  23
  24 // Prints the given callstack
  25 void PrintAndFreeStack(void* callstack, int num_frames);
  26
  27 // Save the current callstack
  28 void* SaveStack(int* num_frame, int first_frames_to_skip = 0);
  29
  30 }  // namespace port
  31 }  // namespace ROCKSDB_NAMESPACE