mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
![Changbin Du](/assets/img/avatar_default.png)
This factors out a general function perf_parse_sublevel_options() to parse sublevel options. The 'sublevel' options is something like the '--debug' options which allow more sublevel options. Signed-off-by: Changbin Du <changbin.du@gmail.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Link: http://lore.kernel.org/lkml/20200808023141.14227-8-changbin.du@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
70 lines
1 KiB
C
70 lines
1 KiB
C
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
#include "util/debug.h"
|
|
#include "util/parse-sublevel-options.h"
|
|
|
|
static int parse_one_sublevel_option(const char *str,
|
|
struct sublevel_option *opts)
|
|
{
|
|
struct sublevel_option *opt = opts;
|
|
char *vstr, *s = strdup(str);
|
|
int v = 1;
|
|
|
|
if (!s) {
|
|
pr_err("no memory\n");
|
|
return -1;
|
|
}
|
|
|
|
vstr = strchr(s, '=');
|
|
if (vstr)
|
|
*vstr++ = 0;
|
|
|
|
while (opt->name) {
|
|
if (!strcmp(s, opt->name))
|
|
break;
|
|
opt++;
|
|
}
|
|
|
|
if (!opt->name) {
|
|
pr_err("Unknown option name '%s'\n", s);
|
|
free(s);
|
|
return -1;
|
|
}
|
|
|
|
if (vstr)
|
|
v = atoi(vstr);
|
|
|
|
*opt->value_ptr = v;
|
|
free(s);
|
|
return 0;
|
|
}
|
|
|
|
/* parse options like --foo a=<n>,b,c... */
|
|
int perf_parse_sublevel_options(const char *str, struct sublevel_option *opts)
|
|
{
|
|
char *s = strdup(str);
|
|
char *p = NULL;
|
|
int ret;
|
|
|
|
if (!s) {
|
|
pr_err("no memory\n");
|
|
return -1;
|
|
}
|
|
|
|
p = strtok(s, ",");
|
|
while (p) {
|
|
ret = parse_one_sublevel_option(p, opts);
|
|
if (ret) {
|
|
free(s);
|
|
return ret;
|
|
}
|
|
|
|
p = strtok(NULL, ",");
|
|
}
|
|
|
|
free(s);
|
|
return 0;
|
|
}
|