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authorRobert Richter <robert.richter@amd.com>2011-12-07 10:02:54 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-12-23 17:01:03 -0200
commitefad14150a0b4429f37da7245001a8096ef7ee38 (patch)
tree61c41a83384266dca00a2a4c88f43ebf4bdf5b5e /tools/perf/Documentation
parent1b5495043d5bc058def21f9b66fd8feaa794eb44 (diff)
downloadlinux-efad14150a0b4429f37da7245001a8096ef7ee38.tar.gz
perf report: Accept fifos as input file
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>
Diffstat (limited to 'tools/perf/Documentation')
-rw-r--r--tools/perf/Documentation/perf-annotate.txt2
-rw-r--r--tools/perf/Documentation/perf-buildid-list.txt2
-rw-r--r--tools/perf/Documentation/perf-evlist.txt2
-rw-r--r--tools/perf/Documentation/perf-kmem.txt2
-rw-r--r--tools/perf/Documentation/perf-lock.txt2
-rw-r--r--tools/perf/Documentation/perf-report.txt2
-rw-r--r--tools/perf/Documentation/perf-sched.txt2
-rw-r--r--tools/perf/Documentation/perf-script.txt2
-rw-r--r--tools/perf/Documentation/perf-timechart.txt2
9 files changed, 9 insertions, 9 deletions
diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt
index 476029d30621..c89f9e1453f7 100644
--- a/tools/perf/Documentation/perf-annotate.txt
+++ b/tools/perf/Documentation/perf-annotate.txt
@@ -22,7 +22,7 @@ OPTIONS
-------
-i::
--input=::
- Input file name. (default: perf.data)
+ Input file name. (default: perf.data unless stdin is a fifo)
-d::
--dsos=<dso[,dso...]>::
diff --git a/tools/perf/Documentation/perf-buildid-list.txt b/tools/perf/Documentation/perf-buildid-list.txt
index cc22325ffd1b..25c52efcc7f0 100644
--- a/tools/perf/Documentation/perf-buildid-list.txt
+++ b/tools/perf/Documentation/perf-buildid-list.txt
@@ -26,7 +26,7 @@ OPTIONS
Show only DSOs with hits.
-i::
--input=::
- Input file name. (default: perf.data)
+ Input file name. (default: perf.data unless stdin is a fifo)
-f::
--force::
Don't do ownership validation.
diff --git a/tools/perf/Documentation/perf-evlist.txt b/tools/perf/Documentation/perf-evlist.txt
index 0cada9e053dc..0507ec7bad71 100644
--- a/tools/perf/Documentation/perf-evlist.txt
+++ b/tools/perf/Documentation/perf-evlist.txt
@@ -18,7 +18,7 @@ OPTIONS
-------
-i::
--input=::
- Input file name. (default: perf.data)
+ Input file name. (default: perf.data unless stdin is a fifo)
SEE ALSO
--------
diff --git a/tools/perf/Documentation/perf-kmem.txt b/tools/perf/Documentation/perf-kmem.txt
index a52fcde894c7..7c8fbbf3f61c 100644
--- a/tools/perf/Documentation/perf-kmem.txt
+++ b/tools/perf/Documentation/perf-kmem.txt
@@ -23,7 +23,7 @@ OPTIONS
-------
-i <file>::
--input=<file>::
- Select the input file (default: perf.data)
+ Select the input file (default: perf.data unless stdin is a fifo)
--caller::
Show per-callsite statistics
diff --git a/tools/perf/Documentation/perf-lock.txt b/tools/perf/Documentation/perf-lock.txt
index 4a26a2f3a6a3..d6b2a4f2108b 100644
--- a/tools/perf/Documentation/perf-lock.txt
+++ b/tools/perf/Documentation/perf-lock.txt
@@ -29,7 +29,7 @@ COMMON OPTIONS
-i::
--input=<file>::
- Input file name.
+ Input file name. (default: perf.data unless stdin is a fifo)
-v::
--verbose::
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 35af0dc8ccb4..9b430e98712e 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -19,7 +19,7 @@ OPTIONS
-------
-i::
--input=::
- Input file name. (default: perf.data)
+ Input file name. (default: perf.data unless stdin is a fifo)
-v::
--verbose::
diff --git a/tools/perf/Documentation/perf-sched.txt b/tools/perf/Documentation/perf-sched.txt
index 5b212b57f70b..8ff4df956951 100644
--- a/tools/perf/Documentation/perf-sched.txt
+++ b/tools/perf/Documentation/perf-sched.txt
@@ -40,7 +40,7 @@ OPTIONS
-------
-i::
--input=<file>::
- Input file name. (default: perf.data)
+ Input file name. (default: perf.data unless stdin is a fifo)
-v::
--verbose::
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index 7f61eaaf9ab8..2f6cef43da25 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -106,7 +106,7 @@ OPTIONS
-i::
--input=::
- Input file name.
+ Input file name. (default: perf.data unless stdin is a fifo)
-d::
--debug-mode::
diff --git a/tools/perf/Documentation/perf-timechart.txt b/tools/perf/Documentation/perf-timechart.txt
index d7b79e2ba2ad..1632b0efc757 100644
--- a/tools/perf/Documentation/perf-timechart.txt
+++ b/tools/perf/Documentation/perf-timechart.txt
@@ -27,7 +27,7 @@ OPTIONS
Select the output file (default: output.svg)
-i::
--input=::
- Select the input file (default: perf.data)
+ Select the input file (default: perf.data unless stdin is a fifo)
-w::
--width=::
Select the width of the SVG file (default: 1000)