Em Mon, Mar 11, 2019 at 07:44:57AM -0700, Andi Kleen escreveu:
> From: Andi Kleen <[email protected]>
> 
> The scripts menu traditionally only showed custom perf scripts.
> 
> Allow to run standard perf script with useful default options too.

Thanks, applied.
 
> - 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 <[email protected]>
> 
> ---
> v2:
> Pass --inline if needed
> v3:
> Avoid compiler warnings. Allocate cmd buffer dynamically.
> Change formatting
> ---
>  tools/perf/ui/browsers/annotate.c |   2 +-
>  tools/perf/ui/browsers/hists.c    |  23 +++---
>  tools/perf/ui/browsers/scripts.c  | 127 +++++++++++++++++++++++-------
>  tools/perf/util/hist.h            |   8 +-
>  4 files changed, 120 insertions(+), 40 deletions(-)
> 
> diff --git a/tools/perf/ui/browsers/annotate.c 
> b/tools/perf/ui/browsers/annotate.c
> index 35bdfd8b1e71..98d934a36d86 100644
> --- a/tools/perf/ui/browsers/annotate.c
> +++ b/tools/perf/ui/browsers/annotate.c
> @@ -750,7 +750,7 @@ static int annotate_browser__run(struct annotate_browser 
> *browser,
>                       continue;
>               case 'r':
>                       {
> -                             script_browse(NULL);
> +                             script_browse(NULL, NULL);
>                               continue;
>                       }
>               case 'k':
> diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
> index f98aeac607dd..fb4430f8982c 100644
> --- a/tools/perf/ui/browsers/hists.c
> +++ b/tools/perf/ui/browsers/hists.c
> @@ -2344,6 +2344,7 @@ struct popup_action {
>       struct thread           *thread;
>       struct map_symbol       ms;
>       int                     socket;
> +     struct perf_evsel       *evsel;
>  
>       int (*fn)(struct hist_browser *browser, struct popup_action *act);
>  };
> @@ -2566,7 +2567,7 @@ do_run_script(struct hist_browser *browser 
> __maybe_unused,
>               n += snprintf(script_opt + n, len - n, " --time %s,%s", start, 
> end);
>       }
>  
> -     script_browse(script_opt);
> +     script_browse(script_opt, act->evsel);
>       free(script_opt);
>       return 0;
>  }
> @@ -2575,7 +2576,7 @@ static int
>  add_script_opt_2(struct hist_browser *browser __maybe_unused,
>              struct popup_action *act, char **optstr,
>              struct thread *thread, struct symbol *sym,
> -            const char *tstr)
> +            struct perf_evsel *evsel, const char *tstr)
>  {
>  
>       if (thread) {
> @@ -2593,6 +2594,7 @@ add_script_opt_2(struct hist_browser *browser 
> __maybe_unused,
>  
>       act->thread = thread;
>       act->ms.sym = sym;
> +     act->evsel = evsel;
>       act->fn = do_run_script;
>       return 1;
>  }
> @@ -2600,12 +2602,13 @@ add_script_opt_2(struct hist_browser *browser 
> __maybe_unused,
>  static int
>  add_script_opt(struct hist_browser *browser,
>              struct popup_action *act, char **optstr,
> -            struct thread *thread, struct symbol *sym)
> +            struct thread *thread, struct symbol *sym,
> +            struct perf_evsel *evsel)
>  {
>       int n, j;
>       struct hist_entry *he;
>  
> -     n = add_script_opt_2(browser, act, optstr, thread, sym, "");
> +     n = add_script_opt_2(browser, act, optstr, thread, sym, evsel, "");
>  
>       he = hist_browser__selected_entry(browser);
>       if (sort_order && strstr(sort_order, "time")) {
> @@ -2618,10 +2621,9 @@ add_script_opt(struct hist_browser *browser,
>                                              sizeof tstr - j);
>               j += sprintf(tstr + j, "-");
>               timestamp__scnprintf_usec(he->time + symbol_conf.time_quantum,
> -                                       tstr + j,
> -                                       sizeof tstr - j);
> +                                       tstr + j, sizeof tstr - j);
>               n += add_script_opt_2(browser, act, optstr, thread, sym,
> -                                       tstr);
> +                                       evsel, tstr);
>               act->time = he->time;
>       }
>       return n;
> @@ -3092,7 +3094,7 @@ static int perf_evsel__hists_browse(struct perf_evsel 
> *evsel, int nr_events,
>                               nr_options += add_script_opt(browser,
>                                                            
> &actions[nr_options],
>                                                            
> &options[nr_options],
> -                                                          thread, NULL);
> +                                                          thread, NULL, 
> evsel);
>                       }
>                       /*
>                        * Note that browser->selection != NULL
> @@ -3107,11 +3109,12 @@ static int perf_evsel__hists_browse(struct perf_evsel 
> *evsel, int nr_events,
>                               nr_options += add_script_opt(browser,
>                                                            
> &actions[nr_options],
>                                                            
> &options[nr_options],
> -                                                          NULL, 
> browser->selection->sym);
> +                                                          NULL, 
> browser->selection->sym,
> +                                                          evsel);
>                       }
>               }
>               nr_options += add_script_opt(browser, &actions[nr_options],
> -                                          &options[nr_options], NULL, NULL);
> +                                          &options[nr_options], NULL, NULL, 
> evsel);
>               nr_options += add_switch_opt(browser, &actions[nr_options],
>                                            &options[nr_options]);
>  skip_scripting:
> diff --git a/tools/perf/ui/browsers/scripts.c 
> b/tools/perf/ui/browsers/scripts.c
> index 7f36630694bf..9e5f87558af6 100644
> --- a/tools/perf/ui/browsers/scripts.c
> +++ b/tools/perf/ui/browsers/scripts.c
> @@ -17,36 +17,111 @@
>   */
>  #define SCRIPT_FULLPATH_LEN  256
>  
> +struct script_config {
> +     const char **names;
> +     char **paths;
> +     int index;
> +     const char *perf;
> +     char extra_format[256];
> +};
> +
> +void attr_to_script(char *extra_format, struct perf_event_attr *attr)
> +{
> +     extra_format[0] = 0;
> +     if (attr->read_format & PERF_FORMAT_GROUP)
> +             strcat(extra_format, " -F +metric");
> +     if (attr->sample_type & PERF_SAMPLE_BRANCH_STACK)
> +             strcat(extra_format, " -F +brstackinsn --xed");
> +     if (attr->sample_type & PERF_SAMPLE_REGS_INTR)
> +             strcat(extra_format, " -F +iregs");
> +     if (attr->sample_type & PERF_SAMPLE_REGS_USER)
> +             strcat(extra_format, " -F +uregs");
> +     if (attr->sample_type & PERF_SAMPLE_PHYS_ADDR)
> +             strcat(extra_format, " -F +phys_addr");
> +}
> +
> +static int add_script_option(const char *name, const char *opt,
> +                          struct script_config *c)
> +{
> +     c->names[c->index] = name;
> +     if (asprintf(&c->paths[c->index],
> +                  "%s script %s -F +metric %s %s",
> +                  c->perf, opt, symbol_conf.inline_name ? " --inline" : "",
> +                  c->extra_format) < 0)
> +             return -1;
> +     c->index++;
> +     return 0;
> +}
> +
>  /*
>   * When success, will copy the full path of the selected script
>   * into  the buffer pointed by script_name, and return 0.
>   * Return -1 on failure.
>   */
> -static int list_scripts(char *script_name)
> +static int list_scripts(char *script_name, bool *custom,
> +                     struct perf_evsel *evsel)
>  {
> -     char *buf, *names[SCRIPT_MAX_NO], *paths[SCRIPT_MAX_NO];
> -     int i, num, choice, ret = -1;
> +     char *buf, *paths[SCRIPT_MAX_NO], *names[SCRIPT_MAX_NO];
> +     int i, num, choice;
> +     int ret = 0;
> +     int max_std, custom_perf;
> +     char pbuf[256];
> +     const char *perf = perf_exe(pbuf, sizeof pbuf);
> +     struct script_config scriptc = {
> +             .names = (const char **)names,
> +             .paths = paths,
> +             .perf = perf
> +     };
> +
> +     script_name[0] = 0;
>  
>       /* Preset the script name to SCRIPT_NAMELEN */
>       buf = malloc(SCRIPT_MAX_NO * (SCRIPT_NAMELEN + SCRIPT_FULLPATH_LEN));
>       if (!buf)
> -             return ret;
> +             return -1;
> +
> +     if (evsel)
> +             attr_to_script(scriptc.extra_format, &evsel->attr);
> +     add_script_option("Show individual samples", "", &scriptc);
> +     add_script_option("Show individual samples with assembler", "-F +insn 
> --xed",
> +                       &scriptc);
> +     add_script_option("Show individual samples with source", "-F 
> +srcline,+srccode",
> +                       &scriptc);
> +     custom_perf = scriptc.index;
> +     add_script_option("Show samples with custom perf script arguments", "", 
> &scriptc);
> +     i = scriptc.index;
> +     max_std = i;
>  
> -     for (i = 0; i < SCRIPT_MAX_NO; i++) {
> -             names[i] = buf + i * (SCRIPT_NAMELEN + SCRIPT_FULLPATH_LEN);
> +     for (; i < SCRIPT_MAX_NO; i++) {
> +             names[i] = buf + (i - max_std) * (SCRIPT_NAMELEN + 
> SCRIPT_FULLPATH_LEN);
>               paths[i] = names[i] + SCRIPT_NAMELEN;
>       }
>  
> -     num = find_scripts(names, paths);
> -     if (num > 0) {
> -             choice = ui__popup_menu(num, names);
> -             if (choice < num && choice >= 0) {
> -                     strcpy(script_name, paths[choice]);
> -                     ret = 0;
> -             }
> +     num = find_scripts(names + max_std, paths + max_std);
> +     if (num < 0)
> +             num = 0;
> +     choice = ui__popup_menu(num + max_std, (char * const *)names);
> +     if (choice < 0) {
> +             ret = -1;
> +             goto out;
>       }
> +     if (choice == custom_perf) {
> +             char script_args[50];
> +             int key = ui_browser__input_window("perf script command",
> +                             "Enter perf script command line (without perf 
> script prefix)",
> +                             script_args, "", 0);
> +             if (key != K_ENTER)
> +                     return -1;
> +             sprintf(script_name, "%s script %s", perf, script_args);
> +     } else if (choice < num + max_std) {
> +             strcpy(script_name, paths[choice]);
> +     }
> +     *custom = choice >= max_std;
>  
> +out:
>       free(buf);
> +     for (i = 0; i < max_std; i++)
> +             free(paths[i]);
>       return ret;
>  }
>  
> @@ -66,27 +141,25 @@ static void run_script(char *cmd)
>       SLsmg_refresh();
>  }
>  
> -int script_browse(const char *script_opt)
> +int script_browse(const char *script_opt, struct perf_evsel *evsel)
>  {
> -     char cmd[SCRIPT_FULLPATH_LEN*2], script_name[SCRIPT_FULLPATH_LEN];
> +     char *cmd, script_name[SCRIPT_FULLPATH_LEN];
> +     bool custom = false;
>  
>       memset(script_name, 0, SCRIPT_FULLPATH_LEN);
> -     if (list_scripts(script_name))
> +     if (list_scripts(script_name, &custom, evsel))
>               return -1;
>  
> -     sprintf(cmd, "perf script -s %s ", script_name);
> -
> -     if (script_opt)
> -             strcat(cmd, script_opt);
> -
> -     if (input_name) {
> -             strcat(cmd, " -i ");
> -             strcat(cmd, input_name);
> -     }
> -
> -     strcat(cmd, " 2>&1 | less");
> +     if (asprintf(&cmd, "%s%s %s %s%s 2>&1 | less",
> +                     custom ? "perf script -s " : "",
> +                     script_name,
> +                     script_opt ? script_opt : "",
> +                     input_name ? "-i " : "",
> +                     input_name ? input_name : "") < 0)
> +             return -1;
>  
>       run_script(cmd);
> +     free(cmd);
>  
>       return 0;
>  }
> diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
> index 6279eca56409..2113a6639cea 100644
> --- a/tools/perf/util/hist.h
> +++ b/tools/perf/util/hist.h
> @@ -436,6 +436,8 @@ struct annotation_options;
>  
>  #ifdef HAVE_SLANG_SUPPORT
>  #include "../ui/keysyms.h"
> +void attr_to_script(char *buf, struct perf_event_attr *attr);
> +
>  int map_symbol__tui_annotate(struct map_symbol *ms, struct perf_evsel *evsel,
>                            struct hist_browser_timer *hbt,
>                            struct annotation_options *annotation_opts);
> @@ -450,7 +452,8 @@ int perf_evlist__tui_browse_hists(struct perf_evlist 
> *evlist, const char *help,
>                                 struct perf_env *env,
>                                 bool warn_lost_event,
>                                 struct annotation_options 
> *annotation_options);
> -int script_browse(const char *script_opt);
> +
> +int script_browse(const char *script_opt, struct perf_evsel *evsel);
>  #else
>  static inline
>  int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
> @@ -479,7 +482,8 @@ static inline int hist_entry__tui_annotate(struct 
> hist_entry *he __maybe_unused,
>       return 0;
>  }
>  
> -static inline int script_browse(const char *script_opt __maybe_unused)
> +static inline int script_browse(const char *script_opt __maybe_unused,
> +                             struct perf_evsel *evsel __maybe_unused)
>  {
>       return 0;
>  }
> -- 
> 2.20.1

-- 

- Arnaldo

Reply via email to