From f7f084f4d3c29b0f9877a32fc6e2feacd47695b9 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 23 Sep 2014 10:01:42 +0900 Subject: [PATCH] perf callchain: Move some parser functions to callchain.c And rename record_callchain_parse() to parse_callchain_record_opt() in accordance to parse_callchain_report_opt(). Reviewed-by: David Ahern Signed-off-by: Namhyung Kim Acked-by: Jiri Olsa Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Milian Wolff Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1411434104-5307-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 88 +------------------------------------ tools/perf/builtin-top.c | 2 +- tools/perf/util/callchain.c | 84 +++++++++++++++++++++++++++++++++++ tools/perf/util/callchain.h | 2 +- 4 files changed, 88 insertions(+), 88 deletions(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index fde0df72beaa..0ee647bcd2ec 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -624,90 +624,6 @@ error: return ret; } -#ifdef HAVE_DWARF_UNWIND_SUPPORT -static int get_stack_size(char *str, unsigned long *_size) -{ - char *endptr; - unsigned long size; - unsigned long max_size = round_down(USHRT_MAX, sizeof(u64)); - - size = strtoul(str, &endptr, 0); - - do { - if (*endptr) - break; - - size = round_up(size, sizeof(u64)); - if (!size || size > max_size) - break; - - *_size = size; - return 0; - - } while (0); - - pr_err("callchain: Incorrect stack dump size (max %ld): %s\n", - max_size, str); - return -1; -} -#endif /* HAVE_DWARF_UNWIND_SUPPORT */ - -int record_parse_callchain(const char *arg) -{ - char *tok, *name, *saveptr = NULL; - char *buf; - int ret = -1; - - /* We need buffer that we know we can write to. */ - buf = malloc(strlen(arg) + 1); - if (!buf) - return -ENOMEM; - - strcpy(buf, arg); - - tok = strtok_r((char *)buf, ",", &saveptr); - name = tok ? : (char *)buf; - - do { - /* Framepointer style */ - if (!strncmp(name, "fp", sizeof("fp"))) { - if (!strtok_r(NULL, ",", &saveptr)) { - callchain_param.record_mode = CALLCHAIN_FP; - ret = 0; - } else - pr_err("callchain: No more arguments " - "needed for -g fp\n"); - break; - -#ifdef HAVE_DWARF_UNWIND_SUPPORT - /* Dwarf style */ - } else if (!strncmp(name, "dwarf", sizeof("dwarf"))) { - const unsigned long default_stack_dump_size = 8192; - - ret = 0; - callchain_param.record_mode = CALLCHAIN_DWARF; - callchain_param.dump_size = default_stack_dump_size; - - tok = strtok_r(NULL, ",", &saveptr); - if (tok) { - unsigned long size = 0; - - ret = get_stack_size(tok, &size); - callchain_param.dump_size = size; - } -#endif /* HAVE_DWARF_UNWIND_SUPPORT */ - } else { - pr_err("callchain: Unknown --call-graph option " - "value: %s\n", arg); - break; - } - - } while (0); - - free(buf); - return ret; -} - static void callchain_debug(void) { static const char *str[CALLCHAIN_MAX] = { "NONE", "FP", "DWARF" }; @@ -734,7 +650,7 @@ int record_parse_callchain_opt(const struct option *opt __maybe_unused, return 0; } - ret = record_parse_callchain(arg); + ret = parse_callchain_record_opt(arg); if (!ret) callchain_debug(); @@ -757,7 +673,7 @@ int record_callchain_opt(const struct option *opt __maybe_unused, static int perf_record_config(const char *var, const char *value, void *cb) { if (!strcmp(var, "record.call-graph")) - return record_parse_callchain(value); + return parse_callchain_record_opt(value); return perf_default_config(var, value, cb); } diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index f7003fc0c5f0..9d647a079d02 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1021,7 +1021,7 @@ parse_callchain_opt(const struct option *opt, const char *arg, int unset) static int perf_top_config(const char *var, const char *value, void *cb) { if (!strcmp(var, "top.call-graph")) - return record_parse_callchain(value); + return parse_callchain_record_opt(value); if (!strcmp(var, "top.children")) { symbol_conf.cumulate_callchain = perf_config_bool(var, value); return 0; diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index 08f0fbf5527c..ba7297230143 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -25,6 +25,90 @@ __thread struct callchain_cursor callchain_cursor; +#ifdef HAVE_DWARF_UNWIND_SUPPORT +static int get_stack_size(const char *str, unsigned long *_size) +{ + char *endptr; + unsigned long size; + unsigned long max_size = round_down(USHRT_MAX, sizeof(u64)); + + size = strtoul(str, &endptr, 0); + + do { + if (*endptr) + break; + + size = round_up(size, sizeof(u64)); + if (!size || size > max_size) + break; + + *_size = size; + return 0; + + } while (0); + + pr_err("callchain: Incorrect stack dump size (max %ld): %s\n", + max_size, str); + return -1; +} +#endif /* HAVE_DWARF_UNWIND_SUPPORT */ + +int parse_callchain_record_opt(const char *arg) +{ + char *tok, *name, *saveptr = NULL; + char *buf; + int ret = -1; + + /* We need buffer that we know we can write to. */ + buf = malloc(strlen(arg) + 1); + if (!buf) + return -ENOMEM; + + strcpy(buf, arg); + + tok = strtok_r((char *)buf, ",", &saveptr); + name = tok ? : (char *)buf; + + do { + /* Framepointer style */ + if (!strncmp(name, "fp", sizeof("fp"))) { + if (!strtok_r(NULL, ",", &saveptr)) { + callchain_param.record_mode = CALLCHAIN_FP; + ret = 0; + } else + pr_err("callchain: No more arguments " + "needed for -g fp\n"); + break; + +#ifdef HAVE_DWARF_UNWIND_SUPPORT + /* Dwarf style */ + } else if (!strncmp(name, "dwarf", sizeof("dwarf"))) { + const unsigned long default_stack_dump_size = 8192; + + ret = 0; + callchain_param.record_mode = CALLCHAIN_DWARF; + callchain_param.dump_size = default_stack_dump_size; + + tok = strtok_r(NULL, ",", &saveptr); + if (tok) { + unsigned long size = 0; + + ret = get_stack_size(tok, &size); + callchain_param.dump_size = size; + } +#endif /* HAVE_DWARF_UNWIND_SUPPORT */ + } else { + pr_err("callchain: Unknown --call-graph option " + "value: %s\n", arg); + break; + } + + } while (0); + + free(buf); + return ret; +} + int parse_callchain_report_opt(const char *arg) { diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h index 819ae4f61e08..8adfbf0bab5c 100644 --- a/tools/perf/util/callchain.h +++ b/tools/perf/util/callchain.h @@ -157,7 +157,6 @@ static inline void callchain_cursor_advance(struct callchain_cursor *cursor) struct option; struct hist_entry; -int record_parse_callchain(const char *arg); int record_parse_callchain_opt(const struct option *opt, const char *arg, int unset); int record_callchain_opt(const struct option *opt, const char *arg, int unset); @@ -169,6 +168,7 @@ int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node * bool hide_unresolved); extern const char record_callchain_help[]; +int parse_callchain_record_opt(const char *arg); int parse_callchain_report_opt(const char *arg); static inline void callchain_cursor_snapshot(struct callchain_cursor *dest, -- 2.39.5