crashpad/handler/crashpad_handler.ad
Mark Mentovai 08e5e10167 mac: Add --use-system-default-handler option to crashpad_handler
This is a weird option that causes crashpad_handler to discard the crash
handler it inherited and replace it with the system default. Its use is
not recommended.

BUG=chromium:538373
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/1391463002 .
2015-10-06 14:15:18 -04:00

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// 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.
:doctype: manpage
= crashpad_handler(8)
== Name
crashpad_handler - Crashpads exception handler server
== Synopsis
[verse]
*crashpad_handler* ['OPTION…']
== Description
This program is Crashpads main exception-handling server. It is responsible for
catching exceptions, writing crash reports, and uploading them to a crash report
collection server. Uploads are disabled by default, and can only be enabled by a
Crashpad client using the Crashpad client library, typically in response to a
user requesting this behavior.
This server is normally started by its initial client, and it performs a
handshake with this client via a pipe established by the client that is
inherited by the server, referenced by the *--handshake-fd* argument. During the
handshake, the server furnishes the client with a send right that the client may
use as an exception port. The server retains the corresponding receive right,
which it monitors for exception messages. When the receive right loses all
senders, the server exits after allowing any upload in progress to complete.
It is not normally appropriate to invoke this program directly. Usually, it will
be invoked by a Crashpad client using the Crashpad client library. Arbitrary
programs may be run with a Crashpad handler by using
man_link:run_with_crashpad[1] to establish the Crashpad client environment
before running a program.
== Options
*--annotation*='KEY=VALUE'::
Sets a process-level annotation mapping 'KEY' to 'VALUE' in each crash report
that is written. This option may appear zero, one, or multiple times.
+
Most annotations should be provided by the Crashpad client as module-level
annotations instead of process-level annotations. Module-level annotations are
more flexible in that they can be modified and cleared during the client
programs lifetime. Module-level annotations can be set via the Crashpad client
library. Process-level annotations are useful for annotations that the
collection server requires be present, that have fixed values, and for cases
where a program that does not use the Crashpad client library is being
monitored.
+
Breakpad-type collection servers only require the +"prod"+ and +"ver"+
annotations, which should be set to the product name or identifier and product
version, respectively. It is unusual to specify other annotations as
process-level annotations via this argument.
*--database*='PATH'::
Use 'PATH' as the path to the Crashpad crash report database. This option is
required. Crash reports are written to this database, and if uploads are
enabled, uploaded from this database to a crash report collection server. If the
database does not exist, it will be created, provided that the parent directory
of 'PATH' exists.
*--handshake-fd*='FD'::
Perform the handshake with the initial client on the file descriptor at 'FD'.
This option is required. This option is only valid on Mac OS X.
*--pipe-name*='PIPE'::
Listen on the given pipe name for connections from clients. 'PIPE' must be of
the form +\\.\pipe\<somename>+. This option is required. This option is only
valid on Windows.
*--reset-own-crash-exception-port-to-system-default*::
Causes the exception handler server to set its own crash handler to the system
default before beginning operation. This is only expected to be useful in cases
where the server inherits an inappropriate crash handler from its parent
process. This option is only valid on OS X. Use of this option is discouraged.
It should not be used absent extraordinary circumstances.
*--url*='URL'::
If uploads are enabled, sends crash reports to the Breakpad-type crash report
collection server at 'URL'. Uploads are disabled by default, and can only be
enabled for a database by a Crashpad client using the Crashpad client library,
typically in response to a user requesting this behavior. If this option is not
specified, this program will behave as if uploads are disabled.
*--help*::
Display help and exit.
*--version*::
Output version information and exit.
== Exit Status
*0*::
Success.
*1*::
Failure, with a message printed to the standard error stream.
== See Also
man_link:catch_exception_tool[1],
man_link:crashpad_database_util[1],
man_link:generate_dump[1],
man_link:run_with_crashpad[1]
include::../doc/support/man_footer.ad[]