mirror of
https://github.com/chromium/crashpad.git
synced 2024-12-27 07:14:10 +08:00
6d2d31d2d1
This was done in Chromium’s local copy of Crashpad in 562827afb599. This change is similar to that one, except more care was taken to avoid including headers from a .cc or _test.cc when already included by the associated .h. Rather than using <stddef.h> for size_t, Crashpad has always used <sys/types.h>, so that’s used here as well. This updates mini_chromium to 8a2363f486e3a0dc562a68884832d06d28d38dcc, which removes base/basictypes.h. e128dcf10122 Remove base/move.h; use std::move() instead of Pass() 8a2363f486e3 Move basictypes.h to macros.h R=avi@chromium.org Review URL: https://codereview.chromium.org/1566713002 .
329 lines
11 KiB
C++
329 lines
11 KiB
C++
// Copyright 2014 The Crashpad Authors. All rights reserved.
|
||
//
|
||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
// you may not use this file except in compliance with the License.
|
||
// You may obtain a copy of the License at
|
||
//
|
||
// http://www.apache.org/licenses/LICENSE-2.0
|
||
//
|
||
// Unless required by applicable law or agreed to in writing, software
|
||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
// See the License for the specific language governing permissions and
|
||
// limitations under the License.
|
||
|
||
#include <getopt.h>
|
||
#include <libgen.h>
|
||
#include <stdio.h>
|
||
#include <string.h>
|
||
#include <sys/types.h>
|
||
#include <unistd.h>
|
||
|
||
#include <algorithm>
|
||
#include <string>
|
||
#include <vector>
|
||
|
||
#include "base/files/scoped_file.h"
|
||
#include "base/logging.h"
|
||
#include "base/mac/mach_logging.h"
|
||
#include "tools/tool_support.h"
|
||
#include "util/mach/exc_server_variants.h"
|
||
#include "util/mach/exception_behaviors.h"
|
||
#include "util/mach/exception_types.h"
|
||
#include "util/mach/mach_extensions.h"
|
||
#include "util/mach/mach_message.h"
|
||
#include "util/mach/mach_message_server.h"
|
||
#include "util/mach/symbolic_constants_mach.h"
|
||
#include "util/posix/symbolic_constants_posix.h"
|
||
#include "util/stdlib/string_number_conversion.h"
|
||
|
||
namespace crashpad {
|
||
namespace {
|
||
|
||
struct Options {
|
||
std::string file_path;
|
||
std::string mach_service;
|
||
FILE* file;
|
||
int timeout_secs;
|
||
bool has_timeout;
|
||
MachMessageServer::Persistent persistent;
|
||
};
|
||
|
||
class ExceptionServer : public UniversalMachExcServer::Interface {
|
||
public:
|
||
ExceptionServer(const Options& options,
|
||
const std::string& me,
|
||
int* exceptions_handled)
|
||
: UniversalMachExcServer::Interface(),
|
||
options_(options),
|
||
me_(me),
|
||
exceptions_handled_(exceptions_handled) {}
|
||
|
||
// UniversalMachExcServer::Interface:
|
||
virtual kern_return_t CatchMachException(
|
||
exception_behavior_t behavior,
|
||
exception_handler_t exception_port,
|
||
thread_t thread,
|
||
task_t task,
|
||
exception_type_t exception,
|
||
const mach_exception_data_type_t* code,
|
||
mach_msg_type_number_t code_count,
|
||
thread_state_flavor_t* flavor,
|
||
ConstThreadState old_state,
|
||
mach_msg_type_number_t old_state_count,
|
||
thread_state_t new_state,
|
||
mach_msg_type_number_t* new_state_count,
|
||
const mach_msg_trailer_t* trailer,
|
||
bool* destroy_complex_request) override {
|
||
*destroy_complex_request = true;
|
||
++*exceptions_handled_;
|
||
|
||
fprintf(options_.file,
|
||
"%s: behavior %s",
|
||
me_.c_str(),
|
||
ExceptionBehaviorToString(
|
||
behavior, kUseFullName | kUnknownIsNumeric | kUseOr).c_str());
|
||
|
||
kern_return_t kr;
|
||
if (ExceptionBehaviorHasIdentity(behavior)) {
|
||
// It’s not possible to call pid_for_task() once EXC_CORPSE_NOTIFY has
|
||
// been generated. It is possible to obtain the process ID by mapping the
|
||
// corpse kcdata area from the task’s address space at code[0] (size
|
||
// code[1]) and locating TASK_CRASHINFO_PID within that area. This area
|
||
// also includes TASK_CRASHINFO_CRASHED_THREADID which could be used
|
||
// instead of thread_info() below, and TASK_CRASHINFO_EXCEPTION_CODES
|
||
// which could be used to recover the exception codes passed to the
|
||
// EXC_CRASH handler. None of this is currently done because corpses are a
|
||
// new 10.11-only feature. See 10.11 <corpses/task_corpse.h> and
|
||
// <kern/kern_cdata.h>.
|
||
if (exception != EXC_CORPSE_NOTIFY) {
|
||
pid_t pid;
|
||
kr = pid_for_task(task, &pid);
|
||
if (kr != KERN_SUCCESS) {
|
||
fprintf(options_.file, "\n");
|
||
fflush(options_.file);
|
||
MACH_LOG(ERROR, kr) << "pid_for_task";
|
||
return KERN_FAILURE;
|
||
}
|
||
fprintf(options_.file, ", pid %d", pid);
|
||
}
|
||
|
||
thread_identifier_info identifier_info;
|
||
mach_msg_type_number_t count = THREAD_IDENTIFIER_INFO_COUNT;
|
||
kr = thread_info(thread,
|
||
THREAD_IDENTIFIER_INFO,
|
||
reinterpret_cast<thread_info_t>(&identifier_info),
|
||
&count);
|
||
if (kr != KERN_SUCCESS) {
|
||
fprintf(options_.file, "\n");
|
||
fflush(options_.file);
|
||
MACH_LOG(ERROR, kr) << "thread_info";
|
||
return KERN_FAILURE;
|
||
}
|
||
fprintf(options_.file, ", thread %lld", identifier_info.thread_id);
|
||
}
|
||
|
||
fprintf(
|
||
options_.file,
|
||
", exception %s, codes[%d]",
|
||
ExceptionToString(exception, kUseFullName | kUnknownIsNumeric).c_str(),
|
||
code_count);
|
||
|
||
for (size_t index = 0; index < code_count; ++index) {
|
||
fprintf(options_.file,
|
||
"%s %#llx",
|
||
index != 0 ? "," : "",
|
||
code[index]);
|
||
}
|
||
|
||
if (exception == EXC_CRASH) {
|
||
mach_exception_code_t original_code_0;
|
||
int signal;
|
||
exception_type_t original_exception =
|
||
ExcCrashRecoverOriginalException(code[0], &original_code_0, &signal);
|
||
fprintf(options_.file,
|
||
", original exception %s, original code[0] %lld, signal %s",
|
||
ExceptionToString(original_exception,
|
||
kUseFullName | kUnknownIsNumeric).c_str(),
|
||
original_code_0,
|
||
SignalToString(signal, kUseFullName | kUnknownIsNumeric).c_str());
|
||
}
|
||
|
||
if (ExceptionBehaviorHasState(behavior)) {
|
||
std::string flavor_string =
|
||
ThreadStateFlavorToString(*flavor, kUseFullName | kUnknownIsNumeric);
|
||
fprintf(options_.file,
|
||
", flavor %s, old_state_count %d",
|
||
flavor_string.c_str(),
|
||
old_state_count);
|
||
}
|
||
|
||
fprintf(options_.file, "\n");
|
||
fflush(options_.file);
|
||
|
||
if (exception != EXC_CRASH && exception != kMachExceptionSimulated) {
|
||
// Find another handler.
|
||
return KERN_FAILURE;
|
||
}
|
||
|
||
ExcServerCopyState(
|
||
behavior, old_state, old_state_count, new_state, new_state_count);
|
||
|
||
return ExcServerSuccessfulReturnValue(exception, behavior, false);
|
||
}
|
||
|
||
private:
|
||
const Options& options_;
|
||
const std::string& me_;
|
||
int* exceptions_handled_;
|
||
};
|
||
|
||
void Usage(const std::string& me) {
|
||
fprintf(stderr,
|
||
"Usage: %s -m SERVICE [OPTION]...\n"
|
||
"Catch Mach exceptions and display information about them.\n"
|
||
"\n"
|
||
" -f, --file=FILE append information to FILE instead of stdout\n"
|
||
" -m, --mach-service=SERVICE register SERVICE with the bootstrap server\n"
|
||
" -p, --persistent continue processing exceptions after the first\n"
|
||
" -t, --timeout=TIMEOUT run for a maximum of TIMEOUT seconds\n"
|
||
" --help display this help and exit\n"
|
||
" --version output version information and exit\n",
|
||
me.c_str());
|
||
ToolSupport::UsageTail(me);
|
||
}
|
||
|
||
int CatchExceptionToolMain(int argc, char* argv[]) {
|
||
const std::string me(basename(argv[0]));
|
||
|
||
enum OptionFlags {
|
||
// “Short” (single-character) options.
|
||
kOptionFile = 'f',
|
||
kOptionMachService = 'm',
|
||
kOptionPersistent = 'p',
|
||
kOptionTimeout = 't',
|
||
|
||
// Long options without short equivalents.
|
||
kOptionLastChar = 255,
|
||
|
||
// Standard options.
|
||
kOptionHelp = -2,
|
||
kOptionVersion = -3,
|
||
};
|
||
|
||
Options options = {};
|
||
|
||
const option long_options[] = {
|
||
{"file", required_argument, nullptr, kOptionFile},
|
||
{"mach-service", required_argument, nullptr, kOptionMachService},
|
||
{"persistent", no_argument, nullptr, kOptionPersistent},
|
||
{"timeout", required_argument, nullptr, kOptionTimeout},
|
||
{"help", no_argument, nullptr, kOptionHelp},
|
||
{"version", no_argument, nullptr, kOptionVersion},
|
||
{nullptr, 0, nullptr, 0},
|
||
};
|
||
|
||
int opt;
|
||
while ((opt = getopt_long(argc, argv, "f:m:pt:", long_options, nullptr)) !=
|
||
-1) {
|
||
switch (opt) {
|
||
case kOptionFile:
|
||
options.file_path = optarg;
|
||
break;
|
||
case kOptionMachService:
|
||
options.mach_service = optarg;
|
||
break;
|
||
case kOptionPersistent:
|
||
options.persistent = MachMessageServer::kPersistent;
|
||
break;
|
||
case kOptionTimeout:
|
||
if (!StringToNumber(optarg, &options.timeout_secs) ||
|
||
options.timeout_secs < 0) {
|
||
ToolSupport::UsageHint(me, "-t requires a zero or positive TIMEOUT");
|
||
return EXIT_FAILURE;
|
||
}
|
||
options.has_timeout = true;
|
||
break;
|
||
case kOptionHelp:
|
||
Usage(me);
|
||
return EXIT_SUCCESS;
|
||
case kOptionVersion:
|
||
ToolSupport::Version(me);
|
||
return EXIT_SUCCESS;
|
||
default:
|
||
ToolSupport::UsageHint(me, nullptr);
|
||
return EXIT_FAILURE;
|
||
}
|
||
}
|
||
argc -= optind;
|
||
argv += optind;
|
||
|
||
if (options.mach_service.empty()) {
|
||
ToolSupport::UsageHint(me, "-m is required");
|
||
return EXIT_FAILURE;
|
||
}
|
||
|
||
base::mac::ScopedMachReceiveRight
|
||
service_port(BootstrapCheckIn(options.mach_service));
|
||
if (service_port == kMachPortNull) {
|
||
return EXIT_FAILURE;
|
||
}
|
||
|
||
base::ScopedFILE file_owner;
|
||
if (options.file_path.empty()) {
|
||
options.file = stdout;
|
||
} else {
|
||
file_owner.reset(fopen(options.file_path.c_str(), "a"));
|
||
if (!file_owner.get()) {
|
||
PLOG(ERROR) << "fopen " << options.file_path;
|
||
return EXIT_FAILURE;
|
||
}
|
||
options.file = file_owner.get();
|
||
}
|
||
|
||
int exceptions_handled = 0;
|
||
ExceptionServer exception_server(options, me, &exceptions_handled);
|
||
UniversalMachExcServer universal_mach_exc_server(&exception_server);
|
||
|
||
// Assume that if persistent mode has been requested, it’s desirable to ignore
|
||
// large messages and keep running.
|
||
MachMessageServer::ReceiveLarge receive_large =
|
||
(options.persistent == MachMessageServer::kPersistent)
|
||
? MachMessageServer::kReceiveLargeIgnore
|
||
: MachMessageServer::kReceiveLargeError;
|
||
|
||
mach_msg_timeout_t timeout_ms;
|
||
if (!options.has_timeout) {
|
||
timeout_ms = kMachMessageTimeoutWaitIndefinitely;
|
||
} else if (options.timeout_secs == 0) {
|
||
timeout_ms = kMachMessageTimeoutNonblocking;
|
||
} else {
|
||
timeout_ms = options.timeout_secs * 1000;
|
||
}
|
||
|
||
mach_msg_return_t mr = MachMessageServer::Run(&universal_mach_exc_server,
|
||
service_port.get(),
|
||
MACH_MSG_OPTION_NONE,
|
||
options.persistent,
|
||
receive_large,
|
||
timeout_ms);
|
||
if (mr == MACH_RCV_TIMED_OUT && options.has_timeout && options.persistent &&
|
||
exceptions_handled) {
|
||
// This is not an error: when exiting on timeout during persistent
|
||
// processing and at least one exception was handled, it’s considered a
|
||
// success.
|
||
} else if (mr != MACH_MSG_SUCCESS) {
|
||
MACH_LOG(ERROR, mr) << "MachMessageServer::Run";
|
||
return EXIT_FAILURE;
|
||
}
|
||
|
||
return EXIT_SUCCESS;
|
||
}
|
||
|
||
} // namespace
|
||
} // namespace crashpad
|
||
|
||
int main(int argc, char* argv[]) {
|
||
return crashpad::CatchExceptionToolMain(argc, argv);
|
||
}
|