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      1 // Copyright (c) 2013 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 #include "chrome/common/crash_keys.h"
      6 
      7 #if defined(OS_MACOSX)
      8 #include "breakpad/src/common/simple_string_dictionary.h"
      9 #elif defined(OS_WIN)
     10 #include "breakpad/src/client/windows/common/ipc_protocol.h"
     11 #endif
     12 
     13 namespace crash_keys {
     14 
     15 // A small crash key, guaranteed to never be split into multiple pieces.
     16 const size_t kSmallSize = 63;
     17 
     18 // A medium crash key, which will be chunked on certain platforms but not
     19 // others. Guaranteed to never be more than four chunks.
     20 const size_t kMediumSize = kSmallSize * 4;
     21 
     22 // A large crash key, which will be chunked on all platforms. This should be
     23 // used sparingly.
     24 const size_t kLargeSize = kSmallSize * 16;
     25 
     26 // The maximum lengths specified by breakpad include the trailing NULL, so
     27 // the actual length of the string is one less.
     28 #if defined(OS_MACOSX)
     29 static const size_t kSingleChunkLength =
     30     google_breakpad::SimpleStringDictionary::value_size - 1;
     31 #elif defined(OS_WIN)
     32 static const size_t kSingleChunkLength =
     33     google_breakpad::CustomInfoEntry::kValueMaxLength - 1;
     34 #else
     35 static const size_t kSingleChunkLength = 63;
     36 #endif
     37 
     38 // Guarantees for crash key sizes.
     39 COMPILE_ASSERT(kSmallSize <= kSingleChunkLength,
     40                crash_key_chunk_size_too_small);
     41 #if defined(OS_MACOSX)
     42 COMPILE_ASSERT(kMediumSize <= kSingleChunkLength,
     43                mac_has_medium_size_crash_key_chunks);
     44 #endif
     45 
     46 size_t RegisterChromeCrashKeys() {
     47   base::debug::CrashKey keys[] = {
     48     // TODO(rsesek): Remove when done testing. Needed so arraysize > 0.
     49     { "rsesek_key", kSmallSize },
     50     // content/:
     51     { "ppapi_path", kMediumSize },
     52     { "subresource_url", kLargeSize },
     53 #if defined(OS_MACOSX)
     54     { mac::kFirstNSException, kMediumSize },
     55     { mac::kFirstNSExceptionTrace, kMediumSize },
     56     { mac::kLastNSException, kMediumSize },
     57     { mac::kLastNSExceptionTrace, kMediumSize },
     58     { mac::kNSException, kMediumSize },
     59     { mac::kNSExceptionTrace, kMediumSize },
     60     { mac::kSendAction, kMediumSize },
     61     { mac::kZombie, kMediumSize },
     62     { mac::kZombieTrace, kMediumSize },
     63     // content/:
     64     { "channel_error_bt", kMediumSize },
     65     { "remove_route_bt", kMediumSize },
     66     { "rwhvm_window", kMediumSize },
     67     // media/:
     68     { "VideoCaptureDeviceQTKit", kSmallSize },
     69 #endif
     70   };
     71 
     72   return base::debug::InitCrashKeys(keys, arraysize(keys), kSingleChunkLength);
     73 }
     74 
     75 #if defined(OS_MACOSX)
     76 namespace mac {
     77 
     78 const char kFirstNSException[] = "firstexception";
     79 const char kFirstNSExceptionTrace[] = "firstexception_bt";
     80 
     81 const char kLastNSException[] = "lastexception";
     82 const char kLastNSExceptionTrace[] = "lastexception_bt";
     83 
     84 const char kNSException[] = "nsexception";
     85 const char kNSExceptionTrace[] = "nsexception_bt";
     86 
     87 const char kSendAction[] = "sendaction";
     88 
     89 const char kZombie[] = "zombie";
     90 const char kZombieTrace[] = "zombie_dealloc_bt";
     91 
     92 }  // namespace mac
     93 #endif
     94 
     95 }  // namespace crash_keys
     96