mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 14:43:58 +08:00
efad14150a
The default input file for perf report is not handled the same way as perf record does it for its output file. This leads to unexpected behavior of perf report, etc. E.g.: # perf record -a -e cpu-cycles sleep 2 | perf report | cat failed to open perf.data: No such file or directory (try 'perf record' first) While perf record writes to a fifo, perf report expects perf.data to be read. This patch changes this to accept fifos as input file. Applies to the following commands: perf annotate perf buildid-list perf evlist perf kmem perf lock perf report perf sched perf script perf timechart Also fixes char const* -> const char* type declaration for filename strings. v2: * Prevent potential null pointer access to input_name in builtin-report.c. Needed due to removal of patch "perf report: Setup browser if stdout is a pipe" Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1323248577-11268-5-git-send-email-robert.richter@amd.com Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
44 lines
831 B
Plaintext
44 lines
831 B
Plaintext
perf-buildid-list(1)
|
|
====================
|
|
|
|
NAME
|
|
----
|
|
perf-buildid-list - List the buildids in a perf.data file
|
|
|
|
SYNOPSIS
|
|
--------
|
|
[verse]
|
|
'perf buildid-list <options>'
|
|
|
|
DESCRIPTION
|
|
-----------
|
|
This command displays the buildids found in a perf.data file, so that other
|
|
tools can be used to fetch packages with matching symbol tables for use by
|
|
perf report.
|
|
|
|
It can also be used to show the build id of the running kernel or in an ELF
|
|
file using -i/--input.
|
|
|
|
OPTIONS
|
|
-------
|
|
-H::
|
|
--with-hits::
|
|
Show only DSOs with hits.
|
|
-i::
|
|
--input=::
|
|
Input file name. (default: perf.data unless stdin is a fifo)
|
|
-f::
|
|
--force::
|
|
Don't do ownership validation.
|
|
-k::
|
|
--kernel::
|
|
Show running kernel build id.
|
|
-v::
|
|
--verbose::
|
|
Be more verbose.
|
|
|
|
SEE ALSO
|
|
--------
|
|
linkperf:perf-record[1], linkperf:perf-top[1],
|
|
linkperf:perf-report[1]
|