perf-annotate(1)
================

NAME
----
perf-annotate - Read perf.data (created by perf record) and display annotated code

SYNOPSIS
--------
[verse]
'perf annotate' [-i <file> | --input=file] [symbol_name]

DESCRIPTION
-----------
This command reads the input file and displays an annotated version of the
code. If the object file has debug symbols then the source code will be
displayed alongside assembly code.

If there is no debug info in the object, then annotated assembly is displayed.

OPTIONS
-------
-i::
--input=::
        Input file name. (default: perf.data unless stdin is a fifo)

-d::
--dsos=<dso[,dso...]>::
        Only consider symbols in these dsos.
-s::
--symbol=<symbol>::
        Symbol to annotate.

-f::
--force::
        Don't do ownership validation.

-v::
--verbose::
        Be more verbose. (Show symbol address, etc)

-D::
--dump-raw-trace::
        Dump raw trace in ASCII.

-k::
--vmlinux=<file>::
        vmlinux pathname.

-m::
--modules::
        Load module symbols. WARNING: use only with -k and LIVE kernel.

-l::
--print-line::
        Print matching source lines (may be slow).

-P::
--full-paths::
        Don't shorten the displayed pathnames.

--stdio:: Use the stdio interface.

--stdio-color::
	'always', 'never' or 'auto', allowing configuring color output
	via the command line, in addition to via "color.ui" .perfconfig.
	Use '--stdio-color always' to generate color even when redirecting
	to a pipe or file. Using just '--stdio-color' is equivalent to
	using 'always'.

--tui:: Use the TUI interface. Use of --tui requires a tty, if one is not
	present, as when piping to other commands, the stdio interface is
	used. This interfaces starts by centering on the line with more
	samples, TAB/UNTAB cycles through the lines with more samples.

--gtk:: Use the GTK interface.

-C::
--cpu:: Only report samples for the list of CPUs provided. Multiple CPUs can
	be provided as a comma-separated list with no space: 0,1. Ranges of
	CPUs are specified with -: 0-2. Default is to report samples on all
	CPUs.

--asm-raw::
	Show raw instruction encoding of assembly instructions.

--source::
	Interleave source code with assembly code. Enabled by default,
	disable with --no-source.

--symfs=<directory>::
        Look for files with symbols relative to this directory.

-M::
--disassembler-style=:: Set disassembler style for objdump.

--objdump=<path>::
        Path to objdump binary.

--skip-missing::
	Skip symbols that cannot be annotated.

--group::
	Show event group information together

SEE ALSO
--------
linkperf:perf-record[1], linkperf:perf-report[1]
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=3846fd9b86001bea171943cc3bb9222cb6da6b42'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?h=nds-private-remove&amp;id=3846fd9b86001bea171943cc3bb9222cb6da6b42'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?h=nds-private-remove&amp;id=3846fd9b86001bea171943cc3bb9222cb6da6b42'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/early?h=nds-private-remove&amp;id=3846fd9b86001bea171943cc3bb9222cb6da6b42'>early</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='3846fd9b86001bea171943cc3bb9222cb6da6b42'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;</td><td class='right'>2017-01-11 10:01:17 +0100</td></tr>
<tr><th>committer</th><td>Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;</td><td class='right'>2017-01-12 20:31:17 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/early?h=nds-private-remove&amp;id=3846fd9b86001bea171943cc3bb9222cb6da6b42'>3846fd9b86001bea171943cc3bb9222cb6da6b42</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/early?id=3846fd9b86001bea171943cc3bb9222cb6da6b42'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=3846fd9b86001bea171943cc3bb9222cb6da6b42'>4f7e6dfbf41fad6d5b1b72b8b85f3761c9a0b151</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/early?h=nds-private-remove&amp;id=3846fd9b86001bea171943cc3bb9222cb6da6b42'>drivers/usb/early</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/early?h=nds-private-remove&amp;id=fdf35a6b22247746a7053fc764d04218a9306f82'>fdf35a6b22247746a7053fc764d04218a9306f82</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/early?h=nds-private-remove&amp;id=3846fd9b86001bea171943cc3bb9222cb6da6b42&amp;id2=fdf35a6b22247746a7053fc764d04218a9306f82'>diff</a>)</td></tr></table>
<div class='commit-subject'>drm/probe-helpers: Drop locking from poll_enable</div><div class='commit-msg'>It was only needed to protect the connector_list walking, see

commit 8c4ccc4ab6f64e859d4ff8d7c02c2ed2e956e07f
Author: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Date:   Thu Jul 9 23:44:26 2015 +0200

    drm/probe-helper: Grab mode_config.mutex in poll_init/enable

Unfortunately the commit message of that patch fails to mention that
the new locking check was for the connector_list.

But that requirement disappeared in

commit c36a3254f7857f1ad9badbe3578ccc92be541a8e
Author: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Date:   Thu Dec 15 16:58:43 2016 +0100

    drm: Convert all helpers to drm_connector_list_iter

and so we can drop this again.

This fixes a locking inversion on nouveau, where the rpm code needs to
re-enable. But in other places the rpm_get() calls are nested within
the big modeset locks.

While at it, also improve the kerneldoc for these two functions a
notch.

v2: Update the kerneldoc even more to explain that these functions
can't be called concurrently, or bad things happen (Chris).

Cc: Dave Airlie &lt;airlied@gmail.com&gt;
Reviewed-by: Chris Wilson &lt;chris@chris-wilson.co.uk&gt;
Cc: Chris Wilson &lt;chris@chris-wilson.co.uk&gt;
Tested-by: Lyude &lt;lyude@redhat.com&gt;
Reviewed-by: Lyude &lt;lyude@redhat.com&gt;
Signed-off-by: Daniel Vetter &lt;daniel.vetter@intel.com&gt;
Link: http://patchwork.freedesktop.org/patch/msgid/20170111090117.5134-1-daniel.vetter@ffwll.ch
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=3846fd9b86001bea171943cc3bb9222cb6da6b42'>Diffstat</a> (limited to 'drivers/usb/early')</div><table summary='diffstat' class='diffstat'>