The Tor Browser: toolkit/crashreporter/google-breakpad/src/processor/minidump

toolkit/crashreporter/google-breakpad/src/processor/minidump_processor.cc@b8a032363ba2 (annotated)

toolkit/crashreporter/google-breakpad/src/processor/minidump_processor.cc

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 // Copyright (c) 2006, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 // copyright notice, this list of conditions and the following disclaimer
 // in the documentation and/or other materials provided with the
 // distribution.
 //     * Neither the name of Google Inc. nor the names of its
 // contributors may be used to endorse or promote products derived from
 // this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "google_breakpad/processor/minidump_processor.h"
 #include <assert.h>
 #include <stdio.h>
 #include "common/scoped_ptr.h"
 #include "google_breakpad/processor/call_stack.h"
 #include "google_breakpad/processor/minidump.h"
 #include "google_breakpad/processor/process_state.h"
 #include "google_breakpad/processor/exploitability.h"
 #include "google_breakpad/processor/stack_frame_symbolizer.h"
 #include "processor/logging.h"
 #include "processor/stackwalker_x86.h"
 namespace google_breakpad {
 MinidumpProcessor::MinidumpProcessor(SymbolSupplier *supplier,
                                      SourceLineResolverInterface *resolver)
     : frame_symbolizer_(new StackFrameSymbolizer(supplier, resolver)),
       own_frame_symbolizer_(true),
       enable_exploitability_(false) {
 }
 MinidumpProcessor::MinidumpProcessor(SymbolSupplier *supplier,
                                      SourceLineResolverInterface *resolver,
                                      bool enable_exploitability)
     : frame_symbolizer_(new StackFrameSymbolizer(supplier, resolver)),
       own_frame_symbolizer_(true),
       enable_exploitability_(enable_exploitability) {
 }
 MinidumpProcessor::MinidumpProcessor(StackFrameSymbolizer *frame_symbolizer,
                                      bool enable_exploitability)
     : frame_symbolizer_(frame_symbolizer),
       own_frame_symbolizer_(false),
       enable_exploitability_(enable_exploitability) {
   assert(frame_symbolizer_);
 }
 MinidumpProcessor::~MinidumpProcessor() {
   if (own_frame_symbolizer_) delete frame_symbolizer_;
 }
 ProcessResult MinidumpProcessor::Process(
     Minidump *dump, ProcessState *process_state) {
   assert(dump);
   assert(process_state);
   process_state->Clear();
   const MDRawHeader *header = dump->header();
   if (!header) {
     BPLOG(ERROR) << "Minidump " << dump->path() << " has no header";
     return PROCESS_ERROR_NO_MINIDUMP_HEADER;
   }
   process_state->time_date_stamp_ = header->time_date_stamp;
   bool has_cpu_info = GetCPUInfo(dump, &process_state->system_info_);
   bool has_os_info = GetOSInfo(dump, &process_state->system_info_);
   uint32_t dump_thread_id = 0;
   bool has_dump_thread = false;
   uint32_t requesting_thread_id = 0;
   bool has_requesting_thread = false;
   MinidumpBreakpadInfo *breakpad_info = dump->GetBreakpadInfo();
   if (breakpad_info) {
     has_dump_thread = breakpad_info->GetDumpThreadID(&dump_thread_id);
     has_requesting_thread =
         breakpad_info->GetRequestingThreadID(&requesting_thread_id);
   }
   MinidumpException *exception = dump->GetException();
   if (exception) {
     process_state->crashed_ = true;
     has_requesting_thread = exception->GetThreadID(&requesting_thread_id);
     process_state->crash_reason_ = GetCrashReason(
         dump, &process_state->crash_address_);
   }
   // This will just return an empty string if it doesn't exist.
   process_state->assertion_ = GetAssertion(dump);
   MinidumpModuleList *module_list = dump->GetModuleList();
   // Put a copy of the module list into ProcessState object.  This is not
   // necessarily a MinidumpModuleList, but it adheres to the CodeModules
   // interface, which is all that ProcessState needs to expose.
   if (module_list)
     process_state->modules_ = module_list->Copy();
   MinidumpThreadList *threads = dump->GetThreadList();
   if (!threads) {
     BPLOG(ERROR) << "Minidump " << dump->path() << " has no thread list";
     return PROCESS_ERROR_NO_THREAD_LIST;
   }
   BPLOG(INFO) << "Minidump " << dump->path() << " has " <<
       (has_cpu_info           ? "" : "no ") << "CPU info, " <<
       (has_os_info            ? "" : "no ") << "OS info, " <<
       (breakpad_info != NULL  ? "" : "no ") << "Breakpad info, " <<
       (exception != NULL      ? "" : "no ") << "exception, " <<
       (module_list != NULL    ? "" : "no ") << "module list, " <<
       (threads != NULL        ? "" : "no ") << "thread list, " <<
       (has_dump_thread        ? "" : "no ") << "dump thread, and " <<
       (has_requesting_thread  ? "" : "no ") << "requesting thread";
   bool interrupted = false;
   bool found_requesting_thread = false;
   unsigned int thread_count = threads->thread_count();
   // Reset frame_symbolizer_ at the beginning of stackwalk for each minidump.
   frame_symbolizer_->Reset();
   for (unsigned int thread_index = 0;
        thread_index < thread_count;
        ++thread_index) {
     char thread_string_buffer[64];
     snprintf(thread_string_buffer, sizeof(thread_string_buffer), "%d/%d",
              thread_index, thread_count);
     string thread_string = dump->path() + ":" + thread_string_buffer;
     MinidumpThread *thread = threads->GetThreadAtIndex(thread_index);
     if (!thread) {
       BPLOG(ERROR) << "Could not get thread for " << thread_string;
       return PROCESS_ERROR_GETTING_THREAD;
     }
     uint32_t thread_id;
     if (!thread->GetThreadID(&thread_id)) {
       BPLOG(ERROR) << "Could not get thread ID for " << thread_string;
       return PROCESS_ERROR_GETTING_THREAD_ID;
     }
     thread_string += " id " + HexString(thread_id);
     BPLOG(INFO) << "Looking at thread " << thread_string;
     // If this thread is the thread that produced the minidump, don't process
     // it.  Because of the problems associated with a thread producing a
     // dump of itself (when both its context and its stack are in flux),
     // processing that stack wouldn't provide much useful data.
     if (has_dump_thread && thread_id == dump_thread_id) {
       continue;
     }
     MinidumpContext *context = thread->GetContext();
     if (has_requesting_thread && thread_id == requesting_thread_id) {
       if (found_requesting_thread) {
         // There can't be more than one requesting thread.
         BPLOG(ERROR) << "Duplicate requesting thread: " << thread_string;
         return PROCESS_ERROR_DUPLICATE_REQUESTING_THREADS;
       }
       // Use processed_state->threads_.size() instead of thread_index.
       // thread_index points to the thread index in the minidump, which
       // might be greater than the thread index in the threads vector if
       // any of the minidump's threads are skipped and not placed into the
       // processed threads vector.  The thread vector's current size will
       // be the index of the current thread when it's pushed into the
       // vector.
       process_state->requesting_thread_ = process_state->threads_.size();
       found_requesting_thread = true;
       if (process_state->crashed_) {
         // Use the exception record's context for the crashed thread, instead
         // of the thread's own context.  For the crashed thread, the thread's
         // own context is the state inside the exception handler.  Using it
         // would not result in the expected stack trace from the time of the
         // crash. If the exception context is invalid, however, we fall back
         // on the thread context.
         MinidumpContext *ctx = exception->GetContext();
         context = ctx ? ctx : thread->GetContext();
       }
     }
     MinidumpMemoryRegion *thread_memory = thread->GetMemory();
     if (!thread_memory) {
       BPLOG(ERROR) << "No memory region for " << thread_string;
     }
     // Use process_state->modules_ instead of module_list, because the
     // |modules| argument will be used to populate the |module| fields in
     // the returned StackFrame objects, which will be placed into the
     // returned ProcessState object.  module_list's lifetime is only as
     // long as the Minidump object: it will be deleted when this function
     // returns.  process_state->modules_ is owned by the ProcessState object
     // (just like the StackFrame objects), and is much more suitable for this
     // task.
     scoped_ptr<Stackwalker> stackwalker(
         Stackwalker::StackwalkerForCPU(process_state->system_info(),
                                        context,
                                        thread_memory,
                                        process_state->modules_,
                                        frame_symbolizer_));
     scoped_ptr<CallStack> stack(new CallStack());
     if (stackwalker.get()) {
       if (!stackwalker->Walk(stack.get(),
                              &process_state->modules_without_symbols_)) {
         BPLOG(INFO) << "Stackwalker interrupt (missing symbols?) at "
                     << thread_string;
         interrupted = true;
       }
     } else {
       // Threads with missing CPU contexts will hit this, but
       // don't abort processing the rest of the dump just for
       // one bad thread.
       BPLOG(ERROR) << "No stackwalker for " << thread_string;
     }
     process_state->threads_.push_back(stack.release());
     process_state->thread_memory_regions_.push_back(thread_memory);
   }
   if (interrupted) {
     BPLOG(INFO) << "Processing interrupted for " << dump->path();
     return PROCESS_SYMBOL_SUPPLIER_INTERRUPTED;
   }
   // If a requesting thread was indicated, it must be present.
   if (has_requesting_thread && !found_requesting_thread) {
     // Don't mark as an error, but invalidate the requesting thread
     BPLOG(ERROR) << "Minidump indicated requesting thread " <<
         HexString(requesting_thread_id) << ", not found in " <<
         dump->path();
     process_state->requesting_thread_ = -1;
   }
   // Exploitability defaults to EXPLOITABILITY_NOT_ANALYZED
   process_state->exploitability_ = EXPLOITABILITY_NOT_ANALYZED;
   // If an exploitability run was requested we perform the platform specific
   // rating.
   if (enable_exploitability_) {
     scoped_ptr<Exploitability> exploitability(
         Exploitability::ExploitabilityForPlatform(dump, process_state));
     // The engine will be null if the platform is not supported
     if (exploitability != NULL) {
       process_state->exploitability_ = exploitability->CheckExploitability();
     } else {
       process_state->exploitability_ = EXPLOITABILITY_ERR_NOENGINE;
     }
   }
   BPLOG(INFO) << "Processed " << dump->path();
   return PROCESS_OK;
 }
 ProcessResult MinidumpProcessor::Process(
     const string &minidump_file, ProcessState *process_state) {
   BPLOG(INFO) << "Processing minidump in file " << minidump_file;
   Minidump dump(minidump_file);
   if (!dump.Read()) {
      BPLOG(ERROR) << "Minidump " << dump.path() << " could not be read";
      return PROCESS_ERROR_MINIDUMP_NOT_FOUND;
   }
   return Process(&dump, process_state);
 }
 // Returns the MDRawSystemInfo from a minidump, or NULL if system info is
 // not available from the minidump.  If system_info is non-NULL, it is used
 // to pass back the MinidumpSystemInfo object.
 static const MDRawSystemInfo* GetSystemInfo(Minidump *dump,
                                             MinidumpSystemInfo **system_info) {
   MinidumpSystemInfo *minidump_system_info = dump->GetSystemInfo();
   if (!minidump_system_info)
     return NULL;
   if (system_info)
     *system_info = minidump_system_info;
   return minidump_system_info->system_info();
 }
 // static
 bool MinidumpProcessor::GetCPUInfo(Minidump *dump, SystemInfo *info) {
   assert(dump);
   assert(info);
   info->cpu.clear();
   info->cpu_info.clear();
   MinidumpSystemInfo *system_info;
   const MDRawSystemInfo *raw_system_info = GetSystemInfo(dump, &system_info);
   if (!raw_system_info)
     return false;
   switch (raw_system_info->processor_architecture) {
     case MD_CPU_ARCHITECTURE_X86:
     case MD_CPU_ARCHITECTURE_AMD64: {
       if (raw_system_info->processor_architecture ==
           MD_CPU_ARCHITECTURE_X86)
         info->cpu = "x86";
       else
         info->cpu = "amd64";
       const string *cpu_vendor = system_info->GetCPUVendor();
       if (cpu_vendor) {
         info->cpu_info = *cpu_vendor;
         info->cpu_info.append(" ");
       }
       char x86_info[36];
       snprintf(x86_info, sizeof(x86_info), "family %u model %u stepping %u",
                raw_system_info->processor_level,
                raw_system_info->processor_revision >> 8,
                raw_system_info->processor_revision & 0xff);
       info->cpu_info.append(x86_info);
       break;
     }
     case MD_CPU_ARCHITECTURE_PPC: {
       info->cpu = "ppc";
       break;
     }
     case MD_CPU_ARCHITECTURE_SPARC: {
       info->cpu = "sparc";
       break;
     }
     case MD_CPU_ARCHITECTURE_ARM: {
       info->cpu = "arm";
       break;
     }
     default: {
       // Assign the numeric architecture ID into the CPU string.
       char cpu_string[7];
       snprintf(cpu_string, sizeof(cpu_string), "0x%04x",
                raw_system_info->processor_architecture);
       info->cpu = cpu_string;
       break;
     }
   }
   info->cpu_count = raw_system_info->number_of_processors;
   return true;
 }
 // static
 bool MinidumpProcessor::GetOSInfo(Minidump *dump, SystemInfo *info) {
   assert(dump);
   assert(info);
   info->os.clear();
   info->os_short.clear();
   info->os_version.clear();
   MinidumpSystemInfo *system_info;
   const MDRawSystemInfo *raw_system_info = GetSystemInfo(dump, &system_info);
   if (!raw_system_info)
     return false;
   info->os_short = system_info->GetOS();
   switch (raw_system_info->platform_id) {
     case MD_OS_WIN32_NT: {
       info->os = "Windows NT";
       break;
     }
     case MD_OS_WIN32_WINDOWS: {
       info->os = "Windows";
       break;
     }
     case MD_OS_MAC_OS_X: {
       info->os = "Mac OS X";
       break;
     }
     case MD_OS_IOS: {
       info->os = "iOS";
       break;
     }
     case MD_OS_LINUX: {
       info->os = "Linux";
       break;
     }
     case MD_OS_SOLARIS: {
       info->os = "Solaris";
       break;
     }
     case MD_OS_ANDROID: {
       info->os = "Android";
       break;
     }
     default: {
       // Assign the numeric platform ID into the OS string.
       char os_string[11];
       snprintf(os_string, sizeof(os_string), "0x%08x",
                raw_system_info->platform_id);
       info->os = os_string;
       break;
     }
   }
   char os_version_string[33];
   snprintf(os_version_string, sizeof(os_version_string), "%u.%u.%u",
            raw_system_info->major_version,
            raw_system_info->minor_version,
            raw_system_info->build_number);
   info->os_version = os_version_string;
   const string *csd_version = system_info->GetCSDVersion();
   if (csd_version) {
     info->os_version.append(" ");
     info->os_version.append(*csd_version);
   }
   return true;
 }
 // static
 string MinidumpProcessor::GetCrashReason(Minidump *dump, uint64_t *address) {
   MinidumpException *exception = dump->GetException();
   if (!exception)
     return "";
   const MDRawExceptionStream *raw_exception = exception->exception();
   if (!raw_exception)
     return "";
   if (address)
     *address = raw_exception->exception_record.exception_address;
   // The reason value is OS-specific and possibly CPU-specific.  Set up
   // sensible numeric defaults for the reason string in case we can't
   // map the codes to a string (because there's no system info, or because
   // it's an unrecognized platform, or because it's an unrecognized code.)
   char reason_string[24];
   uint32_t exception_code = raw_exception->exception_record.exception_code;
   uint32_t exception_flags = raw_exception->exception_record.exception_flags;
   snprintf(reason_string, sizeof(reason_string), "0x%08x / 0x%08x",
            exception_code, exception_flags);
   string reason = reason_string;
   const MDRawSystemInfo *raw_system_info = GetSystemInfo(dump, NULL);
   if (!raw_system_info)
     return reason;
   switch (raw_system_info->platform_id) {
     case MD_OS_MAC_OS_X:
     case MD_OS_IOS: {
       char flags_string[11];
       snprintf(flags_string, sizeof(flags_string), "0x%08x", exception_flags);
       switch (exception_code) {
         case MD_EXCEPTION_MAC_BAD_ACCESS:
           reason = "EXC_BAD_ACCESS / ";
           switch (exception_flags) {
             case MD_EXCEPTION_CODE_MAC_INVALID_ADDRESS:
               reason.append("KERN_INVALID_ADDRESS");
               break;
             case MD_EXCEPTION_CODE_MAC_PROTECTION_FAILURE:
               reason.append("KERN_PROTECTION_FAILURE");
               break;
             case MD_EXCEPTION_CODE_MAC_NO_ACCESS:
               reason.append("KERN_NO_ACCESS");
               break;
             case MD_EXCEPTION_CODE_MAC_MEMORY_FAILURE:
               reason.append("KERN_MEMORY_FAILURE");
               break;
             case MD_EXCEPTION_CODE_MAC_MEMORY_ERROR:
               reason.append("KERN_MEMORY_ERROR");
               break;
             default:
               // arm and ppc overlap
               if (raw_system_info->processor_architecture ==
                   MD_CPU_ARCHITECTURE_ARM) {
                 switch (exception_flags) {
                   case MD_EXCEPTION_CODE_MAC_ARM_DA_ALIGN:
                     reason.append("EXC_ARM_DA_ALIGN");
                     break;
                   case MD_EXCEPTION_CODE_MAC_ARM_DA_DEBUG:
                     reason.append("EXC_ARM_DA_DEBUG");
                     break;
                   default:
                     reason.append(flags_string);
                     BPLOG(INFO) << "Unknown exception reason " << reason;
                     break;
                 }
               } else if (raw_system_info->processor_architecture ==
                          MD_CPU_ARCHITECTURE_PPC) {
                 switch (exception_flags) {
                   case MD_EXCEPTION_CODE_MAC_PPC_VM_PROT_READ:
                     reason.append("EXC_PPC_VM_PROT_READ");
                     break;
                   case MD_EXCEPTION_CODE_MAC_PPC_BADSPACE:
                     reason.append("EXC_PPC_BADSPACE");
                     break;
                   case MD_EXCEPTION_CODE_MAC_PPC_UNALIGNED:
                     reason.append("EXC_PPC_UNALIGNED");
                     break;
                   default:
                     reason.append(flags_string);
                     BPLOG(INFO) << "Unknown exception reason " << reason;
                     break;
                 }
               } else {
                 reason.append(flags_string);
                 BPLOG(INFO) << "Unknown exception reason " << reason;
               }
               break;
           }
           break;
         case MD_EXCEPTION_MAC_BAD_INSTRUCTION:
           reason = "EXC_BAD_INSTRUCTION / ";
           switch (raw_system_info->processor_architecture) {
             case MD_CPU_ARCHITECTURE_ARM: {
               switch (exception_flags) {
                 case MD_EXCEPTION_CODE_MAC_ARM_UNDEFINED:
                   reason.append("EXC_ARM_UNDEFINED");
                   break;
                 default:
                   reason.append(flags_string);
                   BPLOG(INFO) << "Unknown exception reason " << reason;
                   break;
               }
               break;
             }
             case MD_CPU_ARCHITECTURE_PPC: {
               switch (exception_flags) {
                 case MD_EXCEPTION_CODE_MAC_PPC_INVALID_SYSCALL:
                   reason.append("EXC_PPC_INVALID_SYSCALL");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_UNIMPLEMENTED_INSTRUCTION:
                   reason.append("EXC_PPC_UNIPL_INST");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_PRIVILEGED_INSTRUCTION:
                   reason.append("EXC_PPC_PRIVINST");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_PRIVILEGED_REGISTER:
                   reason.append("EXC_PPC_PRIVREG");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_TRACE:
                   reason.append("EXC_PPC_TRACE");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_PERFORMANCE_MONITOR:
                   reason.append("EXC_PPC_PERFMON");
                   break;
                 default:
                   reason.append(flags_string);
                   BPLOG(INFO) << "Unknown exception reason " << reason;
                   break;
               }
               break;
             }
             case MD_CPU_ARCHITECTURE_X86: {
               switch (exception_flags) {
                 case MD_EXCEPTION_CODE_MAC_X86_INVALID_OPERATION:
                   reason.append("EXC_I386_INVOP");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_INVALID_TASK_STATE_SEGMENT:
                   reason.append("EXC_INVTSSFLT");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_SEGMENT_NOT_PRESENT:
                   reason.append("EXC_SEGNPFLT");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_STACK_FAULT:
                   reason.append("EXC_STKFLT");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_GENERAL_PROTECTION_FAULT:
                   reason.append("EXC_GPFLT");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_ALIGNMENT_FAULT:
                   reason.append("EXC_ALIGNFLT");
                   break;
                 default:
                   reason.append(flags_string);
                   BPLOG(INFO) << "Unknown exception reason " << reason;
                   break;
               }
               break;
             }
             default:
               reason.append(flags_string);
               BPLOG(INFO) << "Unknown exception reason " << reason;
               break;
           }
           break;
         case MD_EXCEPTION_MAC_ARITHMETIC:
           reason = "EXC_ARITHMETIC / ";
           switch (raw_system_info->processor_architecture) {
             case MD_CPU_ARCHITECTURE_PPC: {
               switch (exception_flags) {
                 case MD_EXCEPTION_CODE_MAC_PPC_OVERFLOW:
                   reason.append("EXC_PPC_OVERFLOW");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_ZERO_DIVIDE:
                   reason.append("EXC_PPC_ZERO_DIVIDE");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_FLOAT_INEXACT:
                   reason.append("EXC_FLT_INEXACT");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_FLOAT_ZERO_DIVIDE:
                   reason.append("EXC_PPC_FLT_ZERO_DIVIDE");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_FLOAT_UNDERFLOW:
                   reason.append("EXC_PPC_FLT_UNDERFLOW");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_FLOAT_OVERFLOW:
                   reason.append("EXC_PPC_FLT_OVERFLOW");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_FLOAT_NOT_A_NUMBER:
                   reason.append("EXC_PPC_FLT_NOT_A_NUMBER");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_NO_EMULATION:
                   reason.append("EXC_PPC_NOEMULATION");
                   break;
                 case MD_EXCEPTION_CODE_MAC_PPC_ALTIVEC_ASSIST:
                   reason.append("EXC_PPC_ALTIVECASSIST");
                 default:
                   reason.append(flags_string);
                   BPLOG(INFO) << "Unknown exception reason " << reason;
                   break;
               }
               break;
             }
             case MD_CPU_ARCHITECTURE_X86: {
               switch (exception_flags) {
                 case MD_EXCEPTION_CODE_MAC_X86_DIV:
                   reason.append("EXC_I386_DIV");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_INTO:
                   reason.append("EXC_I386_INTO");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_NOEXT:
                   reason.append("EXC_I386_NOEXT");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_EXTOVR:
                   reason.append("EXC_I386_EXTOVR");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_EXTERR:
                   reason.append("EXC_I386_EXTERR");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_EMERR:
                   reason.append("EXC_I386_EMERR");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_BOUND:
                   reason.append("EXC_I386_BOUND");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_SSEEXTERR:
                   reason.append("EXC_I386_SSEEXTERR");
                   break;
                 default:
                   reason.append(flags_string);
                   BPLOG(INFO) << "Unknown exception reason " << reason;
                   break;
               }
               break;
             }
             default:
               reason.append(flags_string);
               BPLOG(INFO) << "Unknown exception reason " << reason;
               break;
           }
           break;
         case MD_EXCEPTION_MAC_EMULATION:
           reason = "EXC_EMULATION / ";
           reason.append(flags_string);
           break;
         case MD_EXCEPTION_MAC_SOFTWARE:
           reason = "EXC_SOFTWARE / ";
           switch (exception_flags) {
             case MD_EXCEPTION_CODE_MAC_ABORT:
               reason.append("SIGABRT");
               break;
             case MD_EXCEPTION_CODE_MAC_NS_EXCEPTION:
               reason.append("UNCAUGHT_NS_EXCEPTION");
               break;
             // These are ppc only but shouldn't be a problem as they're
             // unused on x86
             case MD_EXCEPTION_CODE_MAC_PPC_TRAP:
               reason.append("EXC_PPC_TRAP");
               break;
             case MD_EXCEPTION_CODE_MAC_PPC_MIGRATE:
               reason.append("EXC_PPC_MIGRATE");
               break;
             default:
               reason.append(flags_string);
               BPLOG(INFO) << "Unknown exception reason " << reason;
               break;
           }
           break;
         case MD_EXCEPTION_MAC_BREAKPOINT:
           reason = "EXC_BREAKPOINT / ";
           switch (raw_system_info->processor_architecture) {
             case MD_CPU_ARCHITECTURE_ARM: {
               switch (exception_flags) {
                 case MD_EXCEPTION_CODE_MAC_ARM_DA_ALIGN:
                   reason.append("EXC_ARM_DA_ALIGN");
                   break;
                 case MD_EXCEPTION_CODE_MAC_ARM_DA_DEBUG:
                   reason.append("EXC_ARM_DA_DEBUG");
                   break;
                 case MD_EXCEPTION_CODE_MAC_ARM_BREAKPOINT:
                   reason.append("EXC_ARM_BREAKPOINT");
                   break;
                 default:
                   reason.append(flags_string);
                   BPLOG(INFO) << "Unknown exception reason " << reason;
                   break;
               }
               break;
             }
             case MD_CPU_ARCHITECTURE_PPC: {
               switch (exception_flags) {
                 case MD_EXCEPTION_CODE_MAC_PPC_BREAKPOINT:
                   reason.append("EXC_PPC_BREAKPOINT");
                   break;
                 default:
                   reason.append(flags_string);
                   BPLOG(INFO) << "Unknown exception reason " << reason;
                   break;
               }
               break;
             }
             case MD_CPU_ARCHITECTURE_X86: {
               switch (exception_flags) {
                 case MD_EXCEPTION_CODE_MAC_X86_SGL:
                   reason.append("EXC_I386_SGL");
                   break;
                 case MD_EXCEPTION_CODE_MAC_X86_BPT:
                   reason.append("EXC_I386_BPT");
                   break;
                 default:
                   reason.append(flags_string);
                   BPLOG(INFO) << "Unknown exception reason " << reason;
                   break;
               }
               break;
             }
             default:
               reason.append(flags_string);
               BPLOG(INFO) << "Unknown exception reason " << reason;
               break;
           }
           break;
         case MD_EXCEPTION_MAC_SYSCALL:
           reason = "EXC_SYSCALL / ";
           reason.append(flags_string);
           break;
         case MD_EXCEPTION_MAC_MACH_SYSCALL:
           reason = "EXC_MACH_SYSCALL / ";
           reason.append(flags_string);
           break;
         case MD_EXCEPTION_MAC_RPC_ALERT:
           reason = "EXC_RPC_ALERT / ";
           reason.append(flags_string);
           break;
       }
       break;
     }
     case MD_OS_WIN32_NT:
     case MD_OS_WIN32_WINDOWS: {
       switch (exception_code) {
         case MD_EXCEPTION_CODE_WIN_CONTROL_C:
           reason = "DBG_CONTROL_C";
           break;
         case MD_EXCEPTION_CODE_WIN_GUARD_PAGE_VIOLATION:
           reason = "EXCEPTION_GUARD_PAGE";
           break;
         case MD_EXCEPTION_CODE_WIN_DATATYPE_MISALIGNMENT:
           reason = "EXCEPTION_DATATYPE_MISALIGNMENT";
           break;
         case MD_EXCEPTION_CODE_WIN_BREAKPOINT:
           reason = "EXCEPTION_BREAKPOINT";
           break;
         case MD_EXCEPTION_CODE_WIN_SINGLE_STEP:
           reason = "EXCEPTION_SINGLE_STEP";
           break;
         case MD_EXCEPTION_CODE_WIN_ACCESS_VIOLATION:
           // For EXCEPTION_ACCESS_VIOLATION, Windows puts the address that
           // caused the fault in exception_information[1].
           // exception_information[0] is 0 if the violation was caused by
           // an attempt to read data and 1 if it was an attempt to write
           // data.
           // This information is useful in addition to the code address, which
           // will be present in the crash thread's instruction field anyway.
           if (raw_exception->exception_record.number_parameters >= 1) {
             MDAccessViolationTypeWin av_type =
                 static_cast<MDAccessViolationTypeWin>
                 (raw_exception->exception_record.exception_information[0]);
             switch (av_type) {
               case MD_ACCESS_VIOLATION_WIN_READ:
                 reason = "EXCEPTION_ACCESS_VIOLATION_READ";
                 break;
               case MD_ACCESS_VIOLATION_WIN_WRITE:
                 reason = "EXCEPTION_ACCESS_VIOLATION_WRITE";
                 break;
               case MD_ACCESS_VIOLATION_WIN_EXEC:
                 reason = "EXCEPTION_ACCESS_VIOLATION_EXEC";
                 break;
               default:
                 reason = "EXCEPTION_ACCESS_VIOLATION";
                 break;
             }
           } else {
             reason = "EXCEPTION_ACCESS_VIOLATION";
           }
           if (address &&
               raw_exception->exception_record.number_parameters >= 2) {
             *address =
                 raw_exception->exception_record.exception_information[1];
           }
           break;
         case MD_EXCEPTION_CODE_WIN_IN_PAGE_ERROR:
           reason = "EXCEPTION_IN_PAGE_ERROR";
           break;
         case MD_EXCEPTION_CODE_WIN_INVALID_HANDLE:
           reason = "EXCEPTION_INVALID_HANDLE";
           break;
         case MD_EXCEPTION_CODE_WIN_ILLEGAL_INSTRUCTION:
           reason = "EXCEPTION_ILLEGAL_INSTRUCTION";
           break;
         case MD_EXCEPTION_CODE_WIN_NONCONTINUABLE_EXCEPTION:
           reason = "EXCEPTION_NONCONTINUABLE_EXCEPTION";
           break;
         case MD_EXCEPTION_CODE_WIN_INVALID_DISPOSITION:
           reason = "EXCEPTION_INVALID_DISPOSITION";
           break;
         case MD_EXCEPTION_CODE_WIN_ARRAY_BOUNDS_EXCEEDED:
           reason = "EXCEPTION_BOUNDS_EXCEEDED";
           break;
         case MD_EXCEPTION_CODE_WIN_FLOAT_DENORMAL_OPERAND:
           reason = "EXCEPTION_FLT_DENORMAL_OPERAND";
           break;
         case MD_EXCEPTION_CODE_WIN_FLOAT_DIVIDE_BY_ZERO:
           reason = "EXCEPTION_FLT_DIVIDE_BY_ZERO";
           break;
         case MD_EXCEPTION_CODE_WIN_FLOAT_INEXACT_RESULT:
           reason = "EXCEPTION_FLT_INEXACT_RESULT";
           break;
         case MD_EXCEPTION_CODE_WIN_FLOAT_INVALID_OPERATION:
           reason = "EXCEPTION_FLT_INVALID_OPERATION";
           break;
         case MD_EXCEPTION_CODE_WIN_FLOAT_OVERFLOW:
           reason = "EXCEPTION_FLT_OVERFLOW";
           break;
         case MD_EXCEPTION_CODE_WIN_FLOAT_STACK_CHECK:
           reason = "EXCEPTION_FLT_STACK_CHECK";
           break;
         case MD_EXCEPTION_CODE_WIN_FLOAT_UNDERFLOW:
           reason = "EXCEPTION_FLT_UNDERFLOW";
           break;
         case MD_EXCEPTION_CODE_WIN_INTEGER_DIVIDE_BY_ZERO:
           reason = "EXCEPTION_INT_DIVIDE_BY_ZERO";
           break;
         case MD_EXCEPTION_CODE_WIN_INTEGER_OVERFLOW:
           reason = "EXCEPTION_INT_OVERFLOW";
           break;
         case MD_EXCEPTION_CODE_WIN_PRIVILEGED_INSTRUCTION:
           reason = "EXCEPTION_PRIV_INSTRUCTION";
           break;
         case MD_EXCEPTION_CODE_WIN_STACK_OVERFLOW:
           reason = "EXCEPTION_STACK_OVERFLOW";
           break;
         case MD_EXCEPTION_CODE_WIN_POSSIBLE_DEADLOCK:
           reason = "EXCEPTION_POSSIBLE_DEADLOCK";
           break;
         case MD_EXCEPTION_CODE_WIN_STACK_BUFFER_OVERRUN:
           reason = "EXCEPTION_STACK_BUFFER_OVERRUN";
           break;
         case MD_EXCEPTION_CODE_WIN_HEAP_CORRUPTION:
           reason = "EXCEPTION_HEAP_CORRUPTION";
           break;
         case MD_EXCEPTION_CODE_WIN_UNHANDLED_CPP_EXCEPTION:
           reason = "Unhandled C++ Exception";
           break;
         default:
           BPLOG(INFO) << "Unknown exception reason " << reason;
           break;
       }
       break;
     }
     case MD_OS_ANDROID:
     case MD_OS_LINUX: {
       switch (exception_code) {
         case MD_EXCEPTION_CODE_LIN_SIGHUP:
           reason = "SIGHUP";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGINT:
           reason = "SIGINT";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGQUIT:
           reason = "SIGQUIT";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGILL:
           reason = "SIGILL";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGTRAP:
           reason = "SIGTRAP";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGABRT:
           reason = "SIGABRT";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGBUS:
           reason = "SIGBUS";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGFPE:
           reason = "SIGFPE";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGKILL:
           reason = "SIGKILL";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGUSR1:
           reason = "SIGUSR1";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGSEGV:
           reason = "SIGSEGV";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGUSR2:
           reason = "SIGUSR2";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGPIPE:
           reason = "SIGPIPE";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGALRM:
           reason = "SIGALRM";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGTERM:
           reason = "SIGTERM";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGSTKFLT:
           reason = "SIGSTKFLT";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGCHLD:
           reason = "SIGCHLD";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGCONT:
           reason = "SIGCONT";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGSTOP:
           reason = "SIGSTOP";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGTSTP:
           reason = "SIGTSTP";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGTTIN:
           reason = "SIGTTIN";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGTTOU:
           reason = "SIGTTOU";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGURG:
           reason = "SIGURG";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGXCPU:
           reason = "SIGXCPU";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGXFSZ:
           reason = "SIGXFSZ";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGVTALRM:
           reason = "SIGVTALRM";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGPROF:
           reason = "SIGPROF";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGWINCH:
           reason = "SIGWINCH";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGIO:
           reason = "SIGIO";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGPWR:
           reason = "SIGPWR";
           break;
         case MD_EXCEPTION_CODE_LIN_SIGSYS:
           reason = "SIGSYS";
           break;
       case MD_EXCEPTION_CODE_LIN_DUMP_REQUESTED:
           reason = "DUMP_REQUESTED";
           break;
         default:
           BPLOG(INFO) << "Unknown exception reason " << reason;
           break;
       }
       break;
     }
     case MD_OS_SOLARIS: {
       switch (exception_code) {
         case MD_EXCEPTION_CODE_SOL_SIGHUP:
           reason = "SIGHUP";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGINT:
           reason = "SIGINT";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGQUIT:
           reason = "SIGQUIT";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGILL:
           reason = "SIGILL";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGTRAP:
           reason = "SIGTRAP";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGIOT:
           reason = "SIGIOT | SIGABRT";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGEMT:
           reason = "SIGEMT";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGFPE:
           reason = "SIGFPE";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGKILL:
           reason = "SIGKILL";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGBUS:
           reason = "SIGBUS";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGSEGV:
           reason = "SIGSEGV";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGSYS:
           reason = "SIGSYS";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGPIPE:
           reason = "SIGPIPE";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGALRM:
           reason = "SIGALRM";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGTERM:
           reason = "SIGTERM";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGUSR1:
           reason = "SIGUSR1";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGUSR2:
           reason = "SIGUSR2";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGCLD:
           reason = "SIGCLD | SIGCHLD";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGPWR:
           reason = "SIGPWR";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGWINCH:
           reason = "SIGWINCH";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGURG:
           reason = "SIGURG";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGPOLL:
           reason = "SIGPOLL | SIGIO";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGSTOP:
           reason = "SIGSTOP";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGTSTP:
           reason = "SIGTSTP";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGCONT:
           reason = "SIGCONT";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGTTIN:
           reason = "SIGTTIN";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGTTOU:
           reason = "SIGTTOU";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGVTALRM:
           reason = "SIGVTALRM";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGPROF:
           reason = "SIGPROF";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGXCPU:
           reason = "SIGXCPU";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGXFSZ:
           reason = "SIGXFSZ";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGWAITING:
           reason = "SIGWAITING";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGLWP:
           reason = "SIGLWP";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGFREEZE:
           reason = "SIGFREEZE";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGTHAW:
           reason = "SIGTHAW";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGCANCEL:
           reason = "SIGCANCEL";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGLOST:
           reason = "SIGLOST";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGXRES:
           reason = "SIGXRES";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGJVM1:
           reason = "SIGJVM1";
           break;
         case MD_EXCEPTION_CODE_SOL_SIGJVM2:
           reason = "SIGJVM2";
           break;
         default:
           BPLOG(INFO) << "Unknown exception reason " << reason;
           break;
       }
       break;
     }
     default: {
       BPLOG(INFO) << "Unknown exception reason " << reason;
       break;
     }
   }
   return reason;
 }
 // static
 string MinidumpProcessor::GetAssertion(Minidump *dump) {
   MinidumpAssertion *assertion = dump->GetAssertion();
   if (!assertion)
     return "";
   const MDRawAssertionInfo *raw_assertion = assertion->assertion();
   if (!raw_assertion)
     return "";
   string assertion_string;
   switch (raw_assertion->type) {
   case MD_ASSERTION_INFO_TYPE_INVALID_PARAMETER:
     assertion_string = "Invalid parameter passed to library function";
     break;
   case MD_ASSERTION_INFO_TYPE_PURE_VIRTUAL_CALL:
     assertion_string = "Pure virtual function called";
     break;
   default: {
     char assertion_type[32];
     snprintf(assertion_type, sizeof(assertion_type),
              "0x%08x", raw_assertion->type);
     assertion_string = "Unknown assertion type ";
     assertion_string += assertion_type;
     break;
   }
   }
   string expression = assertion->expression();
   if (!expression.empty()) {
     assertion_string.append(" " + expression);
   }
   string function = assertion->function();
   if (!function.empty()) {
     assertion_string.append(" in function " + function);
   }
   string file = assertion->file();
   if (!file.empty()) {
     assertion_string.append(", in file " + file);
   }
   if (raw_assertion->line != 0) {
     char assertion_line[32];
     snprintf(assertion_line, sizeof(assertion_line), "%u", raw_assertion->line);
     assertion_string.append(" at line ");
     assertion_string.append(assertion_line);
   }
   return assertion_string;
 }
 }  // namespace google_breakpad

The Tor Browser / annotate

toolkit/crashreporter/google-breakpad/src/processor/minidump_processor.cc@b8a032363ba2 (annotated)

toolkit/crashreporter/google-breakpad/src/processor/minidump_processor.cc