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2013-12-04perf tools: Remove cast of non-variadic function to variadicMichael Hudson-Doyle
commit 53805eca3d89b095062c11a6798689bb0af09216 upstream. The 4fb71074a570 (perf ui/hist: Consolidate hpp helpers) cset introduced a cast of percent_color_snprintf to a function pointer type with varargs. Change percent_color_snprintf to be variadic and remove the cast. The symptom of this was all percentages being reported as 0.00% in perf report --stdio output on the armhf arch. Signed-off-by: Michael Hudson-Doyle <michael.hudson@linaro.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Link: http://lkml.kernel.org/r/87zjppvw7y.fsf@canonical.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-15perf evsel: Introduce perf_evsel__is_group_event() helperNamhyung Kim
The perf_evsel__is_group_event function is for checking whether given evsel needs event group view support or not. Please note that it's different to the existing perf_evsel__is_group_leader() which checks only the given evsel is a leader or a standalone (i.e. non-group) event regardless of event group feature. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1362462812-30885-7-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-02-06perf hists browser: Add support to display whole group data for raw columnsJiri Olsa
Currently we don't display group members' values for raw columns like 'Samples' and 'Period' when in group report mode. Uniting '__hpp__percent_fmt' and '__hpp__raw_fmt' function under new function __hpp__fmt. It's basically '__hpp__percent_fmt' code with new 'fmt_percent' bool parameter added saying whether raw number or percentage should be printed. This way raw columns print out all the group members when in group report mode, like: $ perf record -e '{cycles,cache-misses}' ls ... $ perf report --group --show-total-period --stdio ... # Overhead Period Command Shared Object Symbol # ................ ........................ ....... ................. ................................. # 23.63% 11.24% 3331335 317 ls [kernel.kallsyms] [k] __lock_acquire 12.72% 0.00% 1793100 0 ls [kernel.kallsyms] [k] native_sched_clock 9.72% 0.00% 1369920 0 ls libc-2.14.90.so [.] _nl_find_locale 0.03% 0.07% 4476 2 ls [kernel.kallsyms] [k] intel_pmu_enable_all 0.00% 11.73% 0 331 ls ld-2.14.90.so [.] _dl_cache_libcmp 0.00% 11.06% 0 312 ls [kernel.kallsyms] [k] vma_interval_tree_insert Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1359981185-16819-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-01-31perf ui/hist: Add support for event group viewNamhyung Kim
Show group member's overhead also when showing the leader's if event group is enabled. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1358845787-1350-10-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-01-31perf ui/hist: Consolidate hpp helpersNamhyung Kim
Most of hpp helper functions do same jobs for different fields thus consolidate them to appropriate functions/macros. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1358845787-1350-7-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-12-09perf diff: Remove displacement output optionJiri Olsa
It seems not very useful, because it's possible and event more convenient to lookup related symbol by name. Also the output value for both 'baseline' and 'new' data is quite apparent from diff output. And above all it complicates hist code factoring ;) Ditching out PERF_HPP__DISPL column with related output functions. Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20121206132228.GB1080@krava.brq.redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-12-09perf diff: Change formula methods to work with pair directlyJiri Olsa
Changing formula methods to operate over hist entry and its pair directly. This makes the code more obvious and readable, instead of all time checking for pair being != NULL. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1354110769-2998-7-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-12-09perf diff: Change compute methods to work with pair directlyJiri Olsa
Changing compute methods to operate over hist entry and its pair directly. This makes the code more obvious and readable, instead of all time checking for pair being != NULL. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1354110769-2998-6-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-12-09perf hists: Fix period symbol_conf.field_sep displayJiri Olsa
Currently we don't properly display hist data with symbol_conf.field_sep separator. We need to display either space or separator. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-cyggwys0bz5kqdowwvfd8h72@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-12-09perf hists: Introduce perf_hpp__list for period related columnsJiri Olsa
Adding perf_hpp__list list to register and contain all period related columns the command is interested in. This way we get rid of static array holding all possible columns and enable commands to register their own columns. It'll be handy for diff command in future to process and display data for multiple files. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-kiykge4igrcl7etmpmveto1h@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-11-08perf diff: Start moving to support matching more than two histsArnaldo Carvalho de Melo
We want to match more than two hists, so that we can match more than two perf.data files and moreover, match hist_entries (buckets) in multiple events in a group. So the "baseline"/"leader" will instead of a ->pair pointer, use a list_head, that will link to the pairs and hists__match use it. Following that perf_evlist__link will link the hists in its evsel groups. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-2kbmzepoi544ygj9godseqpv@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05perf diff: Display empty space for non paired samplesJiri Olsa
Currently in 'Baseline' and 'Period Base' columns zero values are displayed in case no pair is found for the sample. This might be confusing, using empty space instead. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349448287-18919-9-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05perf diff: Add -F option to display formula for computationJiri Olsa
Adding -F option to display the formula for specified computation. This is mainly to facilitate debugging, but can be useful anyway. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349448287-18919-7-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05perf diff: Add -p option to display period values for hist entriesJiri Olsa
Adding -p option to show period values for both compared hist entries. Showing hist column PERF_HPP__PERIOD and newly added hist column PERF_HPP__PERIOD_BASELINE. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349448287-18919-6-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05perf diff: Add weighted diff computation way to compare hist entriesJiri Olsa
Adding 'wdiff' as new computation way to compare hist entries. If specified the 'Weighted diff' column is displayed with value 'd' computed as: d = B->period * WEIGHT-A - A->period * WEIGHT-B - A/B being matching hist entry from first/second file specified (or perf.data/perf.data.old) respectively. - period being the hist entry period value - WEIGHT-A/WEIGHT-B being user suplied weights in the the '-c' option behind ':' separator like '-c wdiff:1,2'. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349448287-18919-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05perf diff: Add option to sort entries based on diff computationJiri Olsa
Adding support to sort hist entries based on the outcome of selected computation. It's now possible to specify '+' as a first character of '-c' option value to make such sort. Example: $ perf diff -c ratio -b # Event 'cache-misses' # # Baseline Ratio Shared Object Symbol # ........ .............. ................. ................................ # 19.64% 0.69 [kernel.kallsyms] [k] clear_page 0.30% 0.17 [kernel.kallsyms] [k] mm_alloc 0.04% 0.20 [kernel.kallsyms] [k] kmem_cache_alloc $ perf diff -c +ratio -b # Event 'cache-misses' # # Baseline Ratio Shared Object Symbol # ........ .............. ................. ................................ # 19.64% 0.69 [kernel.kallsyms] [k] clear_page 0.04% 0.20 [kernel.kallsyms] [k] kmem_cache_alloc 0.30% 0.17 [kernel.kallsyms] [k] mm_alloc Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349448287-18919-4-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-05perf diff: Add ratio computation way to compare hist entriesJiri Olsa
Adding -c option to select computation method with the current 'Delta' computation as default. Current possible values are of this option are: 'delta' and 'ratio'. Adding 'ratio' as new computation way to compare hist entries. If specified the 'Ratio' column is displayed with value 'r' computed as: r = A->period / B->period with: - A/B being matching hist entry from first/second file specified (or perf.data/perf.data.old) respectively. - period being the hist entry period value Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349448287-18919-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-04perf hists: Introduce struct he_statNamhyung Kim
The struct he_stat is for separating out statistics data of a hist entry. It is required for later changes. It's just a mechanical change and should have no functional differences. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Arun Sharma <asharma@fb.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1349354994-17853-8-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-04perf diff: Removing the total_period argument from output codeJiri Olsa
The total_period is available in struct hists data via the 'struct hist_entry::hists' pointer. There's no need to carry it through the output code path. Removing 'struct perf_hpp::total_period' pointer, because it's no longer needed. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1349354994-17853-7-git-send-email-namhyung@kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-04perf tool: Add hpp interface to enable/disable hpp columnJiri Olsa
Adding perf_hpp__column_enable function to enable/disable hists column and removing diff command specific stuff 'need_pair and show_displacement' from hpp code. The diff command now enables/disables columns separately according to the user arguments. This will be helpful in future patches where more columns are added into diff output. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1349354994-17853-6-git-send-email-namhyung@kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-04perf tools: Removing hists pair argument from output pathJiri Olsa
The hists pointer is now part of the 'struct hist_entry'. And since the overhead and baseline columns are split now, there's no reason to pass it through the output path. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1349354994-17853-5-git-send-email-namhyung@kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-04perf hists: Separate overhead and baseline columnsJiri Olsa
Currently the overhead and baseline columns are handled within single function and the distinction is made by 'baseline hists' pointer passed by 'struct perf_hpp::ptr'. Since hists pointer is now part of each hist_entry, it's possible to locate paired hists pointer directly from the passed struct hist_entry pointer. Also separating those 2 columns makes the code more obvious. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1349354994-17853-4-git-send-email-namhyung@kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-04perf diff: Refactor diff displacement possition infoJiri Olsa
Moving the position calculation into the diff command, so the position as prepared inside struct hist_entry data and there's no need to compute in the output display path. Removing 'displacement' from struct perf_hpp as it is no longer needed. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1349354994-17853-3-git-send-email-namhyung@kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-14perf hists browser: Fix output for 100.00%Namhyung Kim
Current hpp format functions assume that the output will fit to 6 character including % sign (XX.YY%) so used "%5.2f%%" as a format string. However it might be the case if collapsing resulted in a single entry which has 100.00% (7 character) of period. In this case the output will be shifted by 1 character. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1347431706-7839-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-11perf tools: Use __maybe_used for unused variablesIrina Tirdea
perf defines both __used and __unused variables to use for marking unused variables. The variable __used is defined to __attribute__((__unused__)), which contradicts the kernel definition to __attribute__((__used__)) for new gcc versions. On Android, __used is also defined in system headers and this leads to warnings like: warning: '__used__' attribute ignored __unused is not defined in the kernel and is not a standard definition. If __unused is included everywhere instead of __used, this leads to conflicts with glibc headers, since glibc has a variables with this name in its headers. The best approach is to use __maybe_unused, the definition used in the kernel for __attribute__((unused)). In this way there is only one definition in perf sources (instead of 2 definitions that point to the same thing: __used and __unused) and it works on both Linux and Android. This patch simply replaces all instances of __used and __unused with __maybe_unused. Signed-off-by: Irina Tirdea <irina.tirdea@intel.com> Acked-by: Pekka Enberg <penberg@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1347315303-29906-7-git-send-email-irina.tirdea@intel.com [ committer note: fixed up conflict with a116e05 in builtin-sched.c ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-08perf hists: Use perf_hpp__format->width to calculate the column widthsNamhyung Kim
Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1346640790-17197-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-08perf hists: Handle field separator properlyNamhyung Kim
When a field separator is given, the output format doesn't need to be fancy like aligning to column length, coloring the percent value and so on. And since there's a slight difference to normal format, fix it not to break backward compatibility. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1346640790-17197-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-08perf hists: Introduce perf_hpp for hist period printingNamhyung Kim
Current hist print functions are messy because it has to consider many of command line options and the code doing that is scattered around to places. So when someone wants to add an option to manipulate the hist output it'd very easy to miss to update all of them in sync. And things getting worse as more options/features are added continuously. So I'd like to refactor them using hpp formats and move common code to ui/hist.c in order to make it easy to maintain and to add new features. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1346640790-17197-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>