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      1 // Copyright 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 // Internal header file for the Linux breakpad implementation. This file is
      6 // shared between crash_handler_host_linux.cc and breakpad_linux.cc. It should
      7 // only be used in files compiled with linux_breakpad=1.
      8 
      9 #ifndef COMPONENTS_BREAKPAD_APP_BREAKPAD_LINUX_IMPL_H_
     10 #define COMPONENTS_BREAKPAD_APP_BREAKPAD_LINUX_IMPL_H_
     11 
     12 #include <sys/types.h>
     13 
     14 #include "base/basictypes.h"
     15 #include "breakpad/src/common/simple_string_dictionary.h"
     16 #include "components/breakpad/app/breakpad_linux.h"
     17 
     18 namespace breakpad {
     19 
     20 typedef google_breakpad::NonAllocatingMap<256, 256, 64> CrashKeyStorage;
     21 
     22 #if defined(ADDRESS_SANITIZER)
     23 static const size_t kMaxAsanReportSize = 1 << 16;
     24 #endif
     25 // Define a preferred limit on minidump sizes, because Crash Server currently
     26 // throws away any larger than 1.2MB (1.2 * 1024 * 1024).  A value of -1 means
     27 // no limit.
     28 static const off_t kMaxMinidumpFileSize = 1258291;
     29 
     30 // The size of the iovec used to transfer crash data from a child back to the
     31 // browser.
     32 #if !defined(ADDRESS_SANITIZER)
     33 const size_t kCrashIovSize = 6;
     34 #else
     35 // Additional field to pass the AddressSanitizer log to the crash handler.
     36 const size_t kCrashIovSize = 7;
     37 #endif
     38 
     39 // BreakpadInfo describes a crash report.
     40 // The minidump information can either be contained in a file descriptor (fd) or
     41 // in a file (whose path is in filename).
     42 struct BreakpadInfo {
     43   int fd;                          // File descriptor to the Breakpad dump data.
     44   const char* filename;            // Path to the Breakpad dump data.
     45 #if defined(ADDRESS_SANITIZER)
     46   const char* log_filename;        // Path to the ASan log file.
     47   const char* asan_report_str;     // ASan report.
     48   unsigned asan_report_length;     // Length of |asan_report_length|.
     49 #endif
     50   const char* process_type;        // Process type, e.g. "renderer".
     51   unsigned process_type_length;    // Length of |process_type|.
     52   const char* distro;              // Linux distro string.
     53   unsigned distro_length;          // Length of |distro|.
     54   bool upload;                     // Whether to upload or save crash dump.
     55   uint64_t process_start_time;     // Uptime of the crashing process.
     56   size_t oom_size;                 // Amount of memory requested if OOM.
     57   uint64_t pid;                    // PID where applicable.
     58   CrashKeyStorage* crash_keys;
     59 };
     60 
     61 extern void HandleCrashDump(const BreakpadInfo& info);
     62 
     63 }  // namespace breakpad
     64 
     65 #endif  // COMPONENTS_BREAKPAD_APP_BREAKPAD_LINUX_IMPL_H_
     66