106 lines
3.6 KiB
C++
106 lines
3.6 KiB
C++
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// 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/channel.h>
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#include <lib/zx/job.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 "client/client_argv_handling.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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const std::vector<base::FilePath>& attachments) {
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DCHECK(attachments.empty()); // Attachments are not implemented on Fuchsia yet.
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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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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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// Set up handles to send to the spawned process:
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// 0. PA_USER0 job
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// 1. PA_USER0 exception channel
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//
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// Currently it is assumed that this process's default job handle is the
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// exception channel that should be monitored. In the future, it might be
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// useful for this to be configurable by the client.
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zx::job job;
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zx_status_t status =
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zx::job::default_job()->duplicate(ZX_RIGHT_SAME_RIGHTS, &job);
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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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zx::channel exception_channel;
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status = job.create_exception_channel(0, &exception_channel);
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if (status != ZX_OK) {
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ZX_LOG(ERROR, status) << "zx_task_create_exception_channel";
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return false;
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}
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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 = job.release()}},
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{.action = FDIO_SPAWN_ACTION_ADD_HANDLE,
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.h = {.id = PA_HND(PA_USER0, 1), .handle = exception_channel.release()}},
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};
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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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