From 947b4ad1d198b7303ecc961f4939a331be0c48f0 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 29 Apr 2011 22:52:42 +0200 Subject: [PATCH] perf list: Fix max event string size Recent stalled-cycles event names were larger than the 40 chars printout used by perf list. Extend that, make it robust for future extensions and also adjust alignments in face of wider event names. Cc: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker Link: http://lkml.kernel.org/n/tip-7y40wib8n009io7hjpn1dsrm@git.kernel.org Signed-off-by: Ingo Molnar --- tools/perf/util/parse-events.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 8a407f3e286f..ffa493a24333 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -929,7 +929,7 @@ void print_tracepoint_events(const char *subsys_glob, const char *event_glob) snprintf(evt_path, MAXPATHLEN, "%s:%s", sys_dirent.d_name, evt_dirent.d_name); - printf(" %-42s [%s]\n", evt_path, + printf(" %-50s [%s]\n", evt_path, event_type_descriptors[PERF_TYPE_TRACEPOINT]); } closedir(evt_dir); @@ -994,7 +994,7 @@ void print_events_type(u8 type) else snprintf(name, sizeof(name), "%s", syms->symbol); - printf(" %-42s [%s]\n", name, + printf(" %-50s [%s]\n", name, event_type_descriptors[type]); } } @@ -1012,11 +1012,10 @@ int print_hwcache_events(const char *event_glob) for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { char *name = event_cache_name(type, op, i); - if (event_glob != NULL && - !strglobmatch(name, event_glob)) + if (event_glob != NULL && !strglobmatch(name, event_glob)) continue; - printf(" %-42s [%s]\n", name, + printf(" %-50s [%s]\n", name, event_type_descriptors[PERF_TYPE_HW_CACHE]); ++printed; } @@ -1026,14 +1025,16 @@ int print_hwcache_events(const char *event_glob) return printed; } +#define MAX_NAME_LEN 100 + /* * Print the help text for the event symbols: */ void print_events(const char *event_glob) { - struct event_symbol *syms = event_symbols; unsigned int i, type, prev_type = -1, printed = 0, ntypes_printed = 0; - char name[40]; + struct event_symbol *syms = event_symbols; + char name[MAX_NAME_LEN]; printf("\n"); printf("List of pre-defined events (to be used in -e):\n"); @@ -1053,10 +1054,10 @@ void print_events(const char *event_glob) continue; if (strlen(syms->alias)) - sprintf(name, "%s OR %s", syms->symbol, syms->alias); + snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias); else - strcpy(name, syms->symbol); - printf(" %-42s [%s]\n", name, + strncpy(name, syms->symbol, MAX_NAME_LEN); + printf(" %-50s [%s]\n", name, event_type_descriptors[type]); prev_type = type; @@ -1073,12 +1074,12 @@ void print_events(const char *event_glob) return; printf("\n"); - printf(" %-42s [%s]\n", + printf(" %-50s [%s]\n", "rNNN (see 'perf list --help' on how to encode it)", event_type_descriptors[PERF_TYPE_RAW]); printf("\n"); - printf(" %-42s [%s]\n", + printf(" %-50s [%s]\n", "mem:[:access]", event_type_descriptors[PERF_TYPE_BREAKPOINT]); printf("\n"); -- 2.39.5