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2019-09-20perf tools: Remove util.h from where it is not neededArnaldo Carvalho de Melo1-1/+0
Check that it is not needed and remove, fixing up some fallout for places where it was only serving to get something else. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-9h6dg6lsqe2usyqjh5rrues4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-09-01perf debug: Remove needless include directives from debug.hArnaldo Carvalho de Melo1-0/+1
All we need there is a forward declaration for 'union perf_event', so remove it from there and add missing header directives in places using things from this indirect include. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-7ftk0ztstqub1tirjj8o8xbl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-29perf tools: Remove perf.h from source files not needing itArnaldo Carvalho de Melo1-2/+0
With the movement of lots of stuff out of perf.h to other headers we ended up not needing it in lots of places, remove it from those places. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-c718m0sxxwp73lp9d8vpihb4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-07-09perf tools: Add missing headers, mostly stdlib.hArnaldo Carvalho de Melo1-0/+1
Part of the erosion of util/util.h, that will lose its include stdlib.h, we need to add it to places where it is needed but was getting it indirectly. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-1imnqezw99ahc07fjeb51qby@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-12-18perf config: Show the configuration when no arguments are providedArnaldo Carvalho de Melo1-4/+3
More convenient thah having to recall what letter is about showing/listing/dumping the configuration, i.e. no arguments means -l/--list: # perf config llvm.dump-obj=true trace.default_events=/home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o trace.show_zeros=yes trace.show_duration=no # perf config -l llvm.dump-obj=true trace.default_events=/home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o trace.show_zeros=yes trace.show_duration=no # perf config -h Usage: perf config [<file-option>] [options] [section.name[=value] ...] -l, --list show current config variables --system use system config file --user use user config file # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Taeung Song <treeze.taeung@gmail.com> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-z2n63avz6tliqb5gmu4l1dti@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-11-07Merge branch 'linus' into perf/core, to fix conflictsIngo Molnar1-0/+1
Conflicts: tools/perf/arch/arm/annotate/instructions.c tools/perf/arch/arm64/annotate/instructions.c tools/perf/arch/powerpc/annotate/instructions.c tools/perf/arch/s390/annotate/instructions.c tools/perf/arch/x86/tests/intel-cqm.c tools/perf/ui/tui/progress.c tools/perf/util/zlib.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman1-0/+1
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-13perf config: Write a config file just onceTaeung Song1-6/+16
Currently set_config() can be repeatedly called for each input config on the below case: $ perf config kmem.default=slab report.children=false ... But it's a waste, so only once write a config file gathering all given config key=value pairs. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1504754331-9776-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-12perf config: Check not only section->from_system_config but also item'sTaeung Song1-1/+1
Currently section->from_system_config is being checked multiple times. item->from_system_config should be checked instead, when iterating thru the items in a section. Fix it. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1504754325-9724-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-07-20tools include: Adopt strstarts() from the kernelArnaldo Carvalho de Melo1-1/+2
Replacing prefixcmp(), same purpose, inverted result, so standardize on the kernel variant, to reduce silly differences among tools/ and the kernel sources, making it easier for people to work in both codebases. And then doing: if (strstarts(option, "no-")) Looks clearer than doing: if (!prefixcmp(option, "no-")) To figure out if option starts witn "no-". Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-kaei42gi7lpa8subwtv7eug8@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-06-20perf config: Refactor the code using 'ret' variable in cmd_config()Taeung Song1-17/+13
To simplify the code related to 'ret' variable in cmd_config(), initialize 'ret' with -1 instead of 0 and use goto to perform resource release at the end of the function, setting ret to zero just before the out_err label, as usual in the kernel sources. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1497671202-20495-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-06-20perf config: Check error cases of {show_spec, set}_config()Taeung Song1-2/+15
show_spec_config() and set_config() can be called multiple times in the loop in cmd_config(). However, The error cases of them wasn't checked, so fix it. Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1497671197-20450-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-06-19perf config: Invert an if statement to reduce nesting in cmd_config()Taeung Song1-21/+23
Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1494241650-32210-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-05-03perf config: Refactor a duplicated code for obtaining config file nameTaeung Song1-11/+8
We were doing the same sequence to figure out what is the config pathname to use, fix it by doing it before those two uses. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1493209268-5543-2-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-03-27perf tools: Remove unused 'prefix' from builtin functionsArnaldo Carvalho de Melo1-1/+1
We got it from the git sources but never used it for anything, with the place where this would be somehow used remaining: static int run_builtin(struct cmd_struct *p, int argc, const char **argv) { prefix = NULL; if (p->option & RUN_SETUP) prefix = NULL; /* setup_perf_directory(); */ Ditch it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-uw5swz05vol0qpr32c5lpvus@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-11-14perf config: Mark where are config items from (user or system)Taeung Song1-1/+5
To write config items to a particular config file, we should know where is each config section and item from. Current setting functionality of perf-config use autogenerating way by overwriting collected config items to a config file. For example, when collecting config items from user and system config files (i.e. ~/.perfconfig and $(sysconf)/perfconfig), perf_config_set can contain both user and system config items. So we should know where each value is from to avoid merging user and system config items on user config file. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Nambong Ha <over3025@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Cc: Wookje Kwon <aweee0@gmail.com> Link: http://lkml.kernel.org/r/1478241862-31230-7-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-11-14perf config: Add support setting variables in a config fileTaeung Song1-6/+62
Add setting feature that can add config variables with their values to a config file (i.e. user or system config file) or modify config key-value pairs in a config file. For the syntax examples: perf config [<file-option>] [section.name[=value] ...] e.g. You can set the ui.show-headers to false with # perf config ui.show-headers=false If you want to add or modify several config items, you can do like # perf config annotate.show_nr_jumps=false kmem.default=slab Committer notes: Testing it: $ perf config -l top.children=true report.children=false $ $ perf config top.children=false $ perf config -l top.children=false report.children=false $ $ perf config kmem.default=slab $ perf config -l top.children=false report.children=false kmem.default=slab $ Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Nambong Ha <over3025@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Cc: Wookje Kwon <aweee0@gmail.com> Link: http://lkml.kernel.org/r/1478241862-31230-5-git-send-email-treeze.taeung@gmail.com [ Combined patch with docs update with this one ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-11-14perf config: Validate config variable arguments before trying use themTaeung Song1-4/+41
You can show the values for several config items as below: # perf config report.queue-size call-graph.record-mode but it is necessary to more precisely check arguments, before passing them to show_spec_config(). This validation function would be also used when parsing config key-value pairs arguments in the near future. Committer notes: Testing it: $ perf config bla. The config variable does not contain a variable name: bla. $ perf config .bla The config variable does not contain a section name: .bla $ perf config bla.bla $ Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Nambong Ha <over3025@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Cc: Wookje Kwon <aweee0@gmail.com> Link: http://lkml.kernel.org/r/1478241862-31230-4-git-send-email-treeze.taeung@gmail.com [ Fix some spelling errors ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-11-14perf config: Add support for getting config key-value pairsTaeung Song1-3/+37
Add a functionality getting specific config key-value pairs. For the syntax examples, perf config [<file-option>] [section.name ...] e.g. To query config items 'report.queue-size' and 'report.children', do # perf config report.queue-size report.children Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Nambong Ha <over3025@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Cc: Wookje Kwon <aweee0@gmail.com> Link: http://lkml.kernel.org/r/1478241862-31230-2-git-send-email-treeze.taeung@gmail.com [ Combined patch with docs update with this one ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-23perf config: Reimplement show_config() using config_set__for_eachTaeung Song1-12/+5
Recently config_set__for_each got added. In order to let show_config() be short and clear, rewrite this function using it. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1466691272-24117-4-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-06-23perf config: Introduce new init() and exit()Taeung Song1-0/+4
Many sub-commands use perf_config() but everytime perf_config() is called, perf_config() always read config files. (i.e. user config '~/.perfconfig' and system config '$(sysconfdir)/perfconfig') But it is better to use the config set that already contains all config key-value pairs to avoid this repetitive work reading the config files in perf_config(). (the config set mean a static variable 'config_set') In other words, if new perf_config__init() is called, only first time 'config_set' is initialized collecting all configs from the config files. And then we could use new perf_config() like old perf_config(). When a sub-command finished, free the config set by perf_config__exit() at run_builtin(). If we do, 'config_set' can be reused wherever perf_config() is called and a feature of old perf_config() is the same as new perf_config() work without the repetitive work that read the config files. In summary, in order to use features about configuration, we can call the functions at perf.c and other source files as below. # initialize a config set perf_config__init() # configure actual variables from a config set perf_config() # eliminate allocated config set perf_config__exit() # destroy existing config set and initialize a new config set. perf_config__refresh() Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1466691272-24117-3-git-send-email-treeze.taeung@gmail.com [ 'init' counterpart is 'exit', not 'finish' ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-04-14perf config: Make show_config() use perf_config_setTaeung Song1-7/+32
Currently show_config() has a problem when user and system config files have the same config variables i.e.: # cat ~/.perfconfig [top] children = false When $(sysconfdir) is /usr/local/etc # cat /usr/local/etc/perfconfig [top] children = true Before: # perf config --user --list top.children=false # perf config --system --list top.children=true # perf config --list top.children=true top.children=false Because perf_config() can call show_config() each the config file (user and system). Fix it. After: # perf config --user --list top.children=false # perf config --system --list top.children=true # perf config --list top.children=false Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1460620401-23430-3-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-02-12perf config: Add '--system' and '--user' options to select which config file ↵Taeung Song1-3/+24
is used The '--system' option means $(sysconfdir)/perfconfig and '--user' means $HOME/.perfconfig. If none is used, both system and user config file are read. E.g.: # perf config [<file-option>] [options] With an specific config file: # perf config --user | --system or both user and system config file: # perf config Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1455126685-32367-2-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-12-17perf subcmd: Create subcmd libraryJosh Poimboeuf1-1/+1
Move the subcommand-related files from perf to a new library named libsubcmd.a. Since we're moving files anyway, go ahead and rename 'exec_cmd.*' to 'exec-cmd.*' to be consistent with the naming of all the other files. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/c0a838d4c878ab17fee50998811612b2281355c1.1450193761.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-11-24perf tools: Add 'perf config' commandTaeung Song1-0/+66
The perf configuration file contains many variables to change various aspects of each of its tools, including output, disk usage, etc. But looking at the state of configuration is difficult and there's no documentation about config variables except for the variables in perfconfig.example exist. So this patch adds a 'perf-config' command with a '--list' option. perf config [options] display current perf config variables. # perf config -l | --list Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1447768424-17327-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>