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scripts/qemu-trace-stap: Convert documentation to rST
The qemu-trace-stap documentation is currently in scripts/qemu-trace-stap.texi in Texinfo format, which we present to the user as: * a qemu-trace-stap manpage * but not (unusually for QEMU) part of the HTML docs Convert the documentation to rST format that lives in the docs/ subdirectory, and present it to the user as: * a qemu-trace-stap manpage * part of the interop/ Sphinx manual There are minor formatting changes to suit Sphinx, but no content changes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Tested-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20200124162606.8787-8-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell
parent
96ddefbc87
commit
605ffebb2e
@ -2193,6 +2193,7 @@ F: qemu-option-trace.texi
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F: scripts/tracetool.py
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F: scripts/tracetool/
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F: scripts/qemu-trace-stap*
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F: docs/interop/qemu-trace-stap.rst
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F: docs/devel/tracing.txt
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T: git https://github.com/stefanha/qemu.git tracing
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9
Makefile
9
Makefile
@ -357,7 +357,7 @@ ifdef CONFIG_VIRTFS
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DOCS+=fsdev/virtfs-proxy-helper.1
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endif
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ifdef CONFIG_TRACE_SYSTEMTAP
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DOCS+=scripts/qemu-trace-stap.1
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DOCS+=$(MANUAL_BUILDDIR)/interop/qemu-trace-stap.1
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endif
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else
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DOCS=
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@ -848,7 +848,7 @@ ifeq ($(CONFIG_TOOLS),y)
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$(INSTALL_DATA) $(MANUAL_BUILDDIR)/interop/qemu-nbd.8 "$(DESTDIR)$(mandir)/man8"
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endif
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ifdef CONFIG_TRACE_SYSTEMTAP
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$(INSTALL_DATA) scripts/qemu-trace-stap.1 "$(DESTDIR)$(mandir)/man1"
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$(INSTALL_DATA) $(MANUAL_BUILDDIR)/interop/qemu-trace-stap.1 "$(DESTDIR)$(mandir)/man1"
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endif
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ifneq (,$(findstring qemu-ga,$(TOOLS)))
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$(INSTALL_DATA) $(MANUAL_BUILDDIR)/interop/qemu-ga.8 "$(DESTDIR)$(mandir)/man8"
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@ -1050,7 +1050,9 @@ $(MANUAL_BUILDDIR)/specs/index.html: $(call manual-deps,specs)
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$(MANUAL_BUILDDIR)/system/index.html: $(call manual-deps,system)
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$(call build-manual,system,html)
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$(call define-manpage-rule,interop,qemu-ga.8 qemu-img.1 qemu-nbd.8,$(SRC_PATH/qemu-img-cmds.hx))
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$(call define-manpage-rule,interop,\
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qemu-ga.8 qemu-img.1 qemu-nbd.8 qemu-trace-stap.1,\
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$(SRC_PATH/qemu-img-cmds.hx))
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$(call define-manpage-rule,system,qemu-block-drivers.7)
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@ -1078,7 +1080,6 @@ qemu.1: qemu-doc.texi qemu-options.texi qemu-monitor.texi qemu-monitor-info.texi
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qemu.1: qemu-option-trace.texi
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fsdev/virtfs-proxy-helper.1: fsdev/virtfs-proxy-helper.texi
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docs/qemu-cpu-models.7: docs/qemu-cpu-models.texi
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scripts/qemu-trace-stap.1: scripts/qemu-trace-stap.texi
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html: qemu-doc.html docs/interop/qemu-qmp-ref.html docs/interop/qemu-ga-ref.html sphinxdocs
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info: qemu-doc.info docs/interop/qemu-qmp-ref.info docs/interop/qemu-ga-ref.info
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@ -22,5 +22,7 @@ man_pages = [
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('qemu-img', 'qemu-img', u'QEMU disk image utility',
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['Fabrice Bellard'], 1),
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('qemu-nbd', 'qemu-nbd', u'QEMU Disk Network Block Device Server',
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['Anthony Liguori <anthony@codemonkey.ws>'], 8)
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['Anthony Liguori <anthony@codemonkey.ws>'], 8),
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('qemu-trace-stap', 'qemu-trace-stap', u'QEMU SystemTap trace tool',
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[], 1)
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]
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@ -20,5 +20,6 @@ Contents:
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qemu-ga
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qemu-img
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qemu-nbd
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qemu-trace-stap
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vhost-user
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vhost-user-gpu
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124
docs/interop/qemu-trace-stap.rst
Normal file
124
docs/interop/qemu-trace-stap.rst
Normal file
@ -0,0 +1,124 @@
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QEMU SystemTap trace tool
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=========================
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Synopsis
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--------
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**qemu-trace-stap** [*GLOBAL-OPTIONS*] *COMMAND* [*COMMAND-OPTIONS*] *ARGS*...
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Description
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-----------
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The ``qemu-trace-stap`` program facilitates tracing of the execution
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of QEMU emulators using SystemTap.
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It is required to have the SystemTap runtime environment installed to use
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this program, since it is a wrapper around execution of the ``stap``
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program.
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Options
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-------
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.. program:: qemu-trace-stap
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The following global options may be used regardless of which command
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is executed:
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.. option:: --verbose, -v
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Display verbose information about command execution.
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The following commands are valid:
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.. option:: list BINARY PATTERN...
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List all the probe names provided by *BINARY* that match
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*PATTERN*.
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If *BINARY* is not an absolute path, it will be located by searching
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the directories listed in the ``$PATH`` environment variable.
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*PATTERN* is a plain string that is used to filter the results of
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this command. It may optionally contain a ``*`` wildcard to facilitate
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matching multiple probes without listing each one explicitly. Multiple
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*PATTERN* arguments may be given, causing listing of probes that match
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any of the listed names. If no *PATTERN* is given, the all possible
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probes will be listed.
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For example, to list all probes available in the ``qemu-system-x86_64``
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binary:
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::
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$ qemu-trace-stap list qemu-system-x86_64
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To filter the list to only cover probes related to QEMU's cryptographic
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subsystem, in a binary outside ``$PATH``
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::
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$ qemu-trace-stap list /opt/qemu/4.0.0/bin/qemu-system-x86_64 'qcrypto*'
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.. option:: run OPTIONS BINARY PATTERN...
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Run a trace session, printing formatted output any time a process that is
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executing *BINARY* triggers a probe matching *PATTERN*.
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If *BINARY* is not an absolute path, it will be located by searching
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the directories listed in the ``$PATH`` environment variable.
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*PATTERN* is a plain string that matches a probe name shown by the
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*LIST* command. It may optionally contain a ``*`` wildcard to
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facilitate matching multiple probes without listing each one explicitly.
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Multiple *PATTERN* arguments may be given, causing all matching probes
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to be monitored. At least one *PATTERN* is required, since stap is not
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capable of tracing all known QEMU probes concurrently without overflowing
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its trace buffer.
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Invocation of this command does not need to be synchronized with
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invocation of the QEMU process(es). It will match probes on all
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existing running processes and all future launched processes,
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unless told to only monitor a specific process.
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Valid command specific options are:
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.. program:: qemu-trace-stap-run
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.. option:: --pid=PID, -p PID
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Restrict the tracing session so that it only triggers for the process
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identified by *PID*.
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For example, to monitor all processes executing ``qemu-system-x86_64``
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as found on ``$PATH``, displaying all I/O related probes:
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::
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$ qemu-trace-stap run qemu-system-x86_64 'qio*'
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To monitor only the QEMU process with PID 1732
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::
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$ qemu-trace-stap run --pid=1732 qemu-system-x86_64 'qio*'
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To monitor QEMU processes running an alternative binary outside of
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``$PATH``, displaying verbose information about setup of the
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tracing environment:
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::
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$ qemu-trace-stap -v run /opt/qemu/4.0.0/qemu-system-x86_64 'qio*'
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See also
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--------
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:manpage:`qemu(1)`, :manpage:`stap(1)`
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..
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Copyright (C) 2019 Red Hat, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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@ -1,140 +0,0 @@
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@example
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@c man begin SYNOPSIS
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@command{qemu-trace-stap} @var{GLOBAL-OPTIONS} @var{COMMAND} @var{COMMAND-OPTIONS} @var{ARGS...}
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@c man end
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@end example
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@c man begin DESCRIPTION
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The @command{qemu-trace-stap} program facilitates tracing of the execution
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of QEMU emulators using SystemTap.
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It is required to have the SystemTap runtime environment installed to use
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this program, since it is a wrapper around execution of the @command{stap}
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program.
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@c man end
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@c man begin OPTIONS
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The following global options may be used regardless of which command
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is executed:
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@table @option
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@item @var{--verbose}, @var{-v}
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Display verbose information about command execution.
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@end table
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The following commands are valid:
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@table @option
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@item @var{list} @var{BINARY} @var{PATTERN...}
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List all the probe names provided by @var{BINARY} that match
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@var{PATTERN}.
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If @var{BINARY} is not an absolute path, it will be located by searching
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the directories listed in the @code{$PATH} environment variable.
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@var{PATTERN} is a plain string that is used to filter the results of
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this command. It may optionally contain a @code{*} wildcard to facilitate
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matching multiple probes without listing each one explicitly. Multiple
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@var{PATTERN} arguments may be given, causing listing of probes that match
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any of the listed names. If no @var{PATTERN} is given, the all possible
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probes will be listed.
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For example, to list all probes available in the @command{qemu-system-x86_64}
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binary:
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@example
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$ qemu-trace-stap list qemu-system-x86_64
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@end example
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To filter the list to only cover probes related to QEMU's cryptographic
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subsystem, in a binary outside @code{$PATH}
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@example
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$ qemu-trace-stap list /opt/qemu/4.0.0/bin/qemu-system-x86_64 'qcrypto*'
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@end example
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@item @var{run} @var{OPTIONS} @var{BINARY} @var{PATTERN...}
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Run a trace session, printing formatted output any time a process that is
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executing @var{BINARY} triggers a probe matching @var{PATTERN}.
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If @var{BINARY} is not an absolute path, it will be located by searching
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the directories listed in the @code{$PATH} environment variable.
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@var{PATTERN} is a plain string that matches a probe name shown by the
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@var{list} command. It may optionally contain a @code{*} wildcard to
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facilitate matching multiple probes without listing each one explicitly.
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Multiple @var{PATTERN} arguments may be given, causing all matching probes
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to be monitored. At least one @var{PATTERN} is required, since stap is not
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capable of tracing all known QEMU probes concurrently without overflowing
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its trace buffer.
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Invocation of this command does not need to be synchronized with
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invocation of the QEMU process(es). It will match probes on all
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existing running processes and all future launched processes,
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unless told to only monitor a specific process.
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Valid command specific options are:
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@table @option
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@item @var{--pid=PID}, @var{-p PID}
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Restrict the tracing session so that it only triggers for the process
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identified by @code{PID}.
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@end table
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For example, to monitor all processes executing @command{qemu-system-x86_64}
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as found on $PATH, displaying all I/O related probes:
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@example
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$ qemu-trace-stap run qemu-system-x86_64 'qio*'
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@end example
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To monitor only the QEMU process with PID 1732
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@example
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$ qemu-trace-stap run --pid=1732 qemu-system-x86_64 'qio*'
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@end example
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To monitor QEMU processes running an alternative binary outside of
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@code{$PATH}, displaying verbose information about setup of the
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tracing environment:
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@example
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$ qemu-trace-stap -v run /opt/qemu/4.0.0/qemu-system-x86_64 'qio*'
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@end example
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@end table
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@c man end
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@ignore
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@setfilename qemu-trace-stap
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@settitle QEMU SystemTap trace tool
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@c man begin LICENSE
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Copyright (C) 2019 Red Hat, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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@c man end
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@c man begin SEEALSO
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qemu(1), stap(1)
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@c man end
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@end ignore
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