1 // Copyright (c) 2006-2009 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Support for collecting useful information when crashing. 6 7 #ifndef BASE_CRASH_H_ 8 #define BASE_CRASH_H_ 9 10 namespace base { 11 12 struct CrashReason { CrashReasonCrashReason13 CrashReason() : filename(0), line_number(0), message(0), depth(0) {} 14 15 const char* filename; 16 int line_number; 17 const char* message; 18 19 // We'll also store a bit of stack trace context at the time of crash as 20 // it may not be available later on. 21 void* stack[32]; 22 int depth; 23 24 // We'll try to store some trace information if it's available - this should 25 // reflect information from TraceContext::Thread()->tracer()->ToString(). 26 // This field should probably not be set from within a signal handler or 27 // low-level code unless absolutely safe to do so. 28 char trace_info[512]; 29 }; 30 31 // Stores "reason" as an explanation for why the process is about to 32 // crash. The reason and its contents must remain live for the life 33 // of the process. Only the first reason is kept. 34 void SetCrashReason(const CrashReason* reason); 35 36 // Returns first reason passed to SetCrashReason(), or NULL. 37 const CrashReason* GetCrashReason(); 38 39 } // namespace base 40 41 #endif // BASE_CRASH_H_ 42