diff -r 000000000000 -r 6474c204b198 toolkit/crashreporter/google-breakpad/src/processor/minidump_processor.cc --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/toolkit/crashreporter/google-breakpad/src/processor/minidump_processor.cc Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,1214 @@ +// 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 +#include + +#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::StackwalkerForCPU(process_state->system_info(), + context, + thread_memory, + process_state->modules_, + frame_symbolizer_)); + + scoped_ptr 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::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 + (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