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Most of the world, including the Chromium universe, seems to be standardizing on Markdown for documentation. Markdown provides the benefit of automatic rendering on Gitiles (Gerrit), and on GitHub mirrors as well. Crashpad should fit in with its surroundings. There are two quirks that I was unable to resolve. - Markdown does not allow **emphasis** within a ```code fence``` region. In blocks showing interactive examples, the AsciiDoc documentation used this to highlight what the user was expected to type. - Markdown does not have a “definition list” (<dl>). This would have been nice in man pages for the Options and Exit Status sections. In its place, I used unnumbered lists. This is a little ugly, but it’s not the end of the world. The new Markdown-formatted documentation is largely identical to the AsciiDoc that it replaces. Minor editorial revisions were made. References to Mac OS X now mention macOS, and tool man pages describing tools that that access task ports now mention System Integrity Protection (SIP). The AppEngine-based https://crashpad.chromium.org/ app in doc/appengine is still necessary to serve Doxygen-generated documentation. This app is updated to redirect existing generated-HTML URLs to Gitiles’ automatic Markdown rendering. Scripts in doc/support are updated to adapt to this change. All AsciiDoc support files in doc/support have been removed. BUG=crashpad:138 Change-Id: I15ad423d5b7aa1b7aa2ed1d2cb72639eec7c81aa Reviewed-on: https://chromium-review.googlesource.com/408256 Reviewed-by: Robert Sesek <rsesek@chromium.org> Reviewed-by: Scott Graham <scottmg@chromium.org>
4.0 KiB
on_demand_service_tool(1)
Name
on_demand_service_tool—Load and unload on-demand Mach services registered with launchd(8)
Synopsis
on_demand_service_tool -L -l LABEL [OPTION…] COMMAND
[ARG…]
on_demand_service_tool -U -l LABEL
Description
On-demand services may be registered with launchd(8) by using the --load form. One or more service names may be registered with the bootstrap server by specifying --mach-service. When a Mach message is sent to any of these services, launchd(8) will invoke COMMAND along with any arguments specified (ARG…). COMMAND must be an absolute pathname.
The --unload form unregisters jobs registered with launchd(8).
Options
-
-L, --load
Registers a job with launchd(8). --label=LABEL and COMMAND are required. This operation may also be referred to as “load” or “submit”.
-
-U, --unload
Unregisters a job with launchd(8). --label=LABEL is required. This operation may also be referred to as “unload” or “remove”.
-
-l, --label=LABEL
LABEL is used as the job label to identify the job to launchd(8). LABEL must be unique within a launchd(8) context.
-
-m, --mach-service=SERVICE
In conjunction with --load, registers SERVICE with the bootstrap server. Clients will be able to obtain a send right by looking up the SERVICE name with the bootstrap server. When a message is sent to such a Mach port, launchd(8) will invoke COMMAND along with any arguments specified (ARG…) if it is not running. This forms the “on-demand” nature referenced by this tool’s name. This option may appear zero, one, or more times. SERVICE must be unique within a bootstrap context.
-
--help
Display help and exit.
-
--version
Output version information and exit.
Examples
Registers an on-demand server that will execute
catch_exception_tool(1) when a Mach message is sent
to a Mach port obtained from the bootstrap server by looking up the name svc:
$ on_demand_service_tool --load --label=catch_exception \
--mach-service=svc \
$(which catch_exception_tool) --mach-service=svc \
--file=/tmp/out --persistent --timeout=0
Unregisters the on-demand server installed above:
$ on_demand_service_tool --unload --label=catch_exception
Exit Status
-
0
Success.
-
1
Failure, with a message printed to the standard error stream.
See Also
catch_exception_tool(1), exception_port_tool(1), launchctl(1)
Resources
Crashpad home page: https://crashpad.chromium.org/.
Report bugs at https://crashpad.chromium.org/bug/new.
Copyright
Copyright 2014 The Crashpad Authors.
License
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.