kernel/tools/perf/ui/browsers/annotate.c, branch linux-5.1.y

perf annotate TUI browser: Do not use member from variable within its own initialization

2019-07-26T07:12:27Z

[ Upstream commit da2019633f0b5c105ce658aada333422d8cb28fe ] Some compilers will complain when using a member of a struct to initialize another member, in the same struct initialization. For instance: debian:8 Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on LLVM 3.5.0) oraclelinux:7 clang version 3.4.2 (tags/RELEASE_34/dot2-final) Produce: ui/browsers/annotate.c:104:12: error: variable 'ops' is uninitialized when used within its own initialization [-Werror,-Wuninitialized] (!ops.current_entry || ^~~ 1 error generated. So use an extra variable, initialized just before that struct, to have the value used in the expressions used to init two of the struct members. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Fixes: c298304bd747 ("perf annotate: Use a ops table for annotation_line__write()") Link: https://lkml.kernel.org/n/tip-f9nexro58q62l3o9hez8hr0i@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin

perf report: Support builtin perf script in scripts menu

2019-03-11T19:33:19Z

The scripts menu traditionally only showed custom perf scripts. Allow to run standard perf script with useful default options too. - Normal perf script - perf script with assembler (needs xed installed) - perf script with source code output (needs debuginfo) - perf script with custom arguments Then we automatically select the right options to display the information in the perf.data file. For example with -b display branch contexts. It's not easily possible to check for xed's existence in advance. perf script usually gives sensible error messages when it's not available. Signed-off-by: Andi Kleen Acked-by: Jiri Olsa Link: http://lkml.kernel.org/r/20190311144502.15423-7-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo

pref tools: Add missing map.h includes

2019-02-06T13:00:38Z

Lots of places get the map.h file indirectly, and since we're going to remove it from machine.h, then those need to include it directly, do it now, before we remove that dep. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-ob8jehdjda8h5jsrv9dqj9tf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf top: Fix wrong hottest instruction highlighted

2019-01-21T14:29:07Z

The annotation line percentage is compared and inserted into the rbtree, but the percent field of 'struct annotation_data' is an array, the comparison result between them is the address difference. This patch compares the right slot of percent array according to opts->percent_type and makes things right. The problem can be reproduced by pressing 'H' in perf top annotation view. It should highlight the instruction line which has the highest sampling percentage. Signed-off-by: He Kuang Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20190120160523.4391-1-hekuang@huawei.com Signed-off-by: Arnaldo Carvalho de Melo

perf annotate: Add support to toggle percent type

2018-08-08T18:55:52Z

Add new key bindings to toggle percent type/base in annotation UI browser: 'p' to switch between local and global percent type 'b' to switch between hits and perdio percent base Add the following help messages to the UI browser '?' window: ... p Toggle percent type [local/global] b Toggle percent base [period/hits] ... Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/20180804130521.11408-17-jolsa@kernel.org [ Moved percent_type to be the last arg to sym_title(), its an arg to what is being formmated (buf, size) ] Signed-off-by: Arnaldo Carvalho de Melo

perf annotate: Pass browser percent_type in annotate_browser__calc_percent()

2018-08-08T18:55:51Z

Pass browser percent_type in annotate_browser__calc_percent(). Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/20180804130521.11408-16-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf annotate: Pass 'struct annotation_options' to map_symbol__annotation_dump()

2018-08-08T18:55:51Z

Pass 'struct annotation_options' to map_symbol__annotation_dump(), to carry on and pass the percent_type value. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/20180804130521.11408-15-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf annotate: Switch struct annotation_data::percent to array

2018-08-08T18:55:48Z

So we can hold multiple percent values for annotation line. The first member of this array is current local hits percent value (PERCENT_HITS_LOCAL index), so no functional change is expected. Adding annotation_data__percent function to return requested percent value from struct annotation_data. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/20180804130521.11408-9-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf annotate: Rename struct annotation_line::samples* to data*

2018-08-08T18:55:46Z

The name 'samples*' is little confusing because we have nested 'struct sym_hist_entry' under annotation_line struct, which holds 'nr_samples' as well. Also the holding struct name is 'annotation_data' so the 'data' name fits better. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/20180804130521.11408-5-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf annotate: Get rid of annotation__scnprintf_samples_period()

2018-08-08T18:55:46Z

We have more current function tto get the title for annotation, which is hists__scnprintf_title. They both have same output as far as the annotation's header line goes. They differ in counting of the nr_samples, hists__scnprintf_title provides more accurate number based on the setup of the symbol_conf.filter_relative variable. Plus it also displays any uid/thread/dso/socket filters/zooms if there are set any, which annotation__scnprintf_samples_period does not. Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/20180804130521.11408-4-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo