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d4d2f8557a
These methods use /system/bin/app_process{32,64} to load a Java class
supplied by the embedding application. It is expected that the
supplied class loads a native library containing Crashpad's handler
code and passes its arguments to crashpad::HandlerMain().
Bug: crashpad:30
Change-Id: Ic0f9a1439007047b06f07f5ec7d5de9a9d4a19a2
Reviewed-on: https://chromium-review.googlesource.com/1194400
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
113 lines
3.9 KiB
C++
113 lines
3.9 KiB
C++
// Copyright 2017 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "client/crashpad_client.h"
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#include <lib/fdio/spawn.h>
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#include <lib/zx/job.h>
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#include <lib/zx/port.h>
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#include <lib/zx/process.h>
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#include <zircon/processargs.h>
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#include "base/fuchsia/fuchsia_logging.h"
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#include "base/logging.h"
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#include "base/strings/stringprintf.h"
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#include "client/client_argv_handling.h"
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#include "util/fuchsia/system_exception_port_key.h"
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namespace crashpad {
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CrashpadClient::CrashpadClient() {}
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CrashpadClient::~CrashpadClient() {}
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bool CrashpadClient::StartHandler(
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const base::FilePath& handler,
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const base::FilePath& database,
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const base::FilePath& metrics_dir,
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const std::string& url,
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const std::map<std::string, std::string>& annotations,
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const std::vector<std::string>& arguments,
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bool restartable,
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bool asynchronous_start) {
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DCHECK_EQ(restartable, false); // Not used on Fuchsia.
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DCHECK_EQ(asynchronous_start, false); // Not used on Fuchsia.
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zx::port exception_port;
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zx_status_t status = zx::port::create(0, &exception_port);
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if (status != ZX_OK) {
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ZX_LOG(ERROR, status) << "zx_port_create";
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return false;
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}
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status = zx::job::default_job()->bind_exception_port(
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exception_port, kSystemExceptionPortKey, 0);
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if (status != ZX_OK) {
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ZX_LOG(ERROR, status) << "zx_task_bind_exception_port";
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return false;
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}
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std::vector<std::string> argv_strings = BuildHandlerArgvStrings(
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handler, database, metrics_dir, url, annotations, arguments);
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std::vector<const char*> argv;
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StringVectorToCStringVector(argv_strings, &argv);
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// Follow the same protocol as devmgr and crashlogger in Zircon (that is,
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// process handle as handle 0, with type USER0, exception port handle as
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// handle 1, also with type PA_USER0) so that it's trivial to replace
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// crashlogger with crashpad_handler. The exception port is passed on, so
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// released here. Currently it is assumed that this process's default job
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// handle is the exception port that should be monitored. In the future, it
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// might be useful for this to be configurable by the client.
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constexpr size_t kActionCount = 2;
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fdio_spawn_action_t actions[] = {
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{.action = FDIO_SPAWN_ACTION_ADD_HANDLE,
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.h = {.id = PA_HND(PA_USER0, 0), .handle = ZX_HANDLE_INVALID}},
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{.action = FDIO_SPAWN_ACTION_ADD_HANDLE,
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.h = {.id = PA_HND(PA_USER0, 1), .handle = ZX_HANDLE_INVALID}},
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};
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status = zx_handle_duplicate(
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zx_job_default(), ZX_RIGHT_SAME_RIGHTS, &actions[0].h.handle);
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if (status != ZX_OK) {
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ZX_LOG(ERROR, status) << "zx_handle_duplicate";
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return false;
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}
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actions[1].h.handle = exception_port.release();
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char error_message[FDIO_SPAWN_ERR_MSG_MAX_LENGTH];
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zx::process child;
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// TODO(scottmg): https://crashpad.chromium.org/bug/196, FDIO_SPAWN_CLONE_ALL
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// is useful during bringup, but should probably be made minimal for real
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// usage.
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status = fdio_spawn_etc(ZX_HANDLE_INVALID,
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FDIO_SPAWN_CLONE_ALL,
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argv[0],
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argv.data(),
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nullptr,
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kActionCount,
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actions,
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child.reset_and_get_address(),
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error_message);
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if (status != ZX_OK) {
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ZX_LOG(ERROR, status) << "fdio_spawn_etc: " << error_message;
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return false;
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}
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return true;
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}
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} // namespace crashpad
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