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perf record: Use long arg for counter period

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I wrote this to test the extended period emulation, we might as
well merge it.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2009-06-03 11:24:33 +02:00 committed by Ingo Molnar
parent 226f62fdd5
commit e61078a0c8
3 changed files with 21 additions and 3 deletions
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6
Documentation/perf_counter/builtin-record.c
View file

@ -20,8 +20,8 @@
#define ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a)-1)
#define __ALIGN_MASK(x, mask) (((x)+(mask))&~(mask))
static int default_interval = 100000;
static int event_count[MAX_COUNTERS];
static long default_interval = 100000;
static long event_count[MAX_COUNTERS];
static int fd[MAX_NR_CPUS][MAX_COUNTERS];
static int nr_cpus = 0;
@ -494,7 +494,7 @@ static const struct option options[] = {
"append to the output file to do incremental profiling"),
OPT_BOOLEAN('f', "force", &force,
"overwrite existing data file"),
OPT_INTEGER('c', "count", &default_interval,
OPT_LONG('c', "count", &default_interval,
"event period to sample"),
OPT_STRING('o', "output", &output_name, "file",
"output file name"),

16
Documentation/perf_counter/util/parse-options.c
View file

@ -113,6 +113,22 @@ static int get_value(struct parse_opt_ctx_t *p,
return opterror(opt, "expects a numerical value", flags);
return 0;
case OPTION_LONG:
if (unset) {
*(long *)opt->value = 0;
return 0;
}
if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
*(long *)opt->value = opt->defval;
return 0;
}
if (get_arg(p, opt, flags, &arg))
return -1;
*(long *)opt->value = strtol(arg, (char **)&s, 10);
if (*s)
return opterror(opt, "expects a numerical value", flags);
return 0;
default:
die("should not happen, someone must be hit on the forehead");
}

2
Documentation/perf_counter/util/parse-options.h
View file

@ -14,6 +14,7 @@ enum parse_opt_type {
/* options with arguments (usually) */
OPTION_STRING,
OPTION_INTEGER,
OPTION_LONG,
OPTION_CALLBACK,
};
@ -97,6 +98,7 @@ struct option {
#define OPT_SET_INT(s, l, v, h, i) { OPTION_SET_INT, (s), (l), (v), NULL, (h), 0, NULL, (i) }
#define OPT_SET_PTR(s, l, v, h, p) { OPTION_SET_PTR, (s), (l), (v), NULL, (h), 0, NULL, (p) }
#define OPT_INTEGER(s, l, v, h) { OPTION_INTEGER, (s), (l), (v), NULL, (h) }
#define OPT_LONG(s, l, v, h) { OPTION_LONG, (s), (l), (v), NULL, (h) }
#define OPT_STRING(s, l, v, a, h) { OPTION_STRING, (s), (l), (v), (a), (h) }
#define OPT_DATE(s, l, v, h) \
{ OPTION_CALLBACK, (s), (l), (v), "time",(h), 0, \