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docs/tools/qemu-trace-stap.rst: Do not hard-code the QEMU binary name 

In downstream, we want to use a different name for the QEMU binary,
and some people might also use the docs for non-x86 binaries, that's
why we already created the |qemu_system| placeholder in the past.
Use it now in the stap trace doc, too.

Message-Id: <20220104103319.179870-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
staging
Thomas Huth 2022-01-04 11:33:19 +01:00
parent 4cc75ce697
commit 057dc9a635
1 changed files with 12 additions and 12 deletions
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24
docs/tools/qemu-trace-stap.rst
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@ -46,19 +46,19 @@ The following commands are valid:
any of the listed names. If no *PATTERN* is given, the all possible
probes will be listed.
For example, to list all probes available in the ``qemu-system-x86_64``
For example, to list all probes available in the |qemu_system|
binary:
::
.. parsed-literal::
$ qemu-trace-stap list qemu-system-x86_64
$ qemu-trace-stap list |qemu_system|
To filter the list to only cover probes related to QEMU's cryptographic
subsystem, in a binary outside ``$PATH``
::
.. parsed-literal::
$ qemu-trace-stap list /opt/qemu/4.0.0/bin/qemu-system-x86_64 'qcrypto*'
$ qemu-trace-stap list /opt/qemu/|version|/bin/|qemu_system| 'qcrypto*'
.. option:: run OPTIONS BINARY PATTERN...
@ -90,26 +90,26 @@ The following commands are valid:
Restrict the tracing session so that it only triggers for the process
identified by *PID*.
For example, to monitor all processes executing ``qemu-system-x86_64``
For example, to monitor all processes executing |qemu_system|
as found on ``$PATH``, displaying all I/O related probes:
::
.. parsed-literal::
$ qemu-trace-stap run qemu-system-x86_64 'qio*'
$ qemu-trace-stap run |qemu_system| 'qio*'
To monitor only the QEMU process with PID 1732
::
.. parsed-literal::
$ qemu-trace-stap run --pid=1732 qemu-system-x86_64 'qio*'
$ qemu-trace-stap run --pid=1732 |qemu_system| 'qio*'
To monitor QEMU processes running an alternative binary outside of
``$PATH``, displaying verbose information about setup of the
tracing environment:
::
.. parsed-literal::
$ qemu-trace-stap -v run /opt/qemu/4.0.0/qemu-system-x86_64 'qio*'
$ qemu-trace-stap -v run /opt/qemu/|version|/bin/|qemu_system| 'qio*'
See also
--------