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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 <dsahern@gmail.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Milian Wolff <mail@milianw.de>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1411434104-5307-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2014-09-23 10:01:42 +09:00 committed by Arnaldo Carvalho de Melo
parent 72a128aa08
commit f7f084f4d3
4 changed files with 88 additions and 88 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
tools/perf/builtin-record.c
View File

@ -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);
}

2
tools/perf/builtin-top.c
View File

@ -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;

84
tools/perf/util/callchain.c
View File

@ -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)
{

2
tools/perf/util/callchain.h
View File

@ -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,