Commit ed457520 authored Feb 27, 2015 by Yunlong Song Committed by Arnaldo Carvalho de Melo Feb 27, 2015

perf list: Avoid confusion of perf output and the next command prompt



Distinguish the output of 'perf list --list-opts' or 'perf --list-cmds'
with the next command prompt, which also happens in other cases (e.g.
record, report ...).

Example:

Before this patch:

 $perf list --list-opts
 --raw-dump $          <-- the output and the next command prompt are at
                           the same line

After this patch:

 $perf list --list-opts
 --raw-dump
 $                     <-- the new line

Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1425032491-20224-6-git-send-email-yunlong.song@huawei.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 16114951

tools/perf/perf.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -223,6 +223,7 @@ static int handle_options(const char **argv, int argc, int *envchanged)
		struct cmd_struct *p = commands+i;
		printf("%s ", p->cmd);
		}
		putchar('\n');
		exit(0);
		} else if (!strcmp(cmd, "--debug")) {
		if (*argc < 2) {

tools/perf/util/parse-options.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -508,12 +508,14 @@ int parse_options_subcommand(int argc, const char *argv, const struct option o
		printf("--%s ", options->long_name);
		options++;
		}
		putchar('\n');
		exit(130);
		case PARSE_OPT_LIST_SUBCMDS:
		if (subcommands) {
		for (int i = 0; subcommands[i]; i++)
		printf("%s ", subcommands[i]);
		}
		putchar('\n');
		exit(130);
		default: /* PARSE_OPT_UNKNOWN */
		if (ctx.argv[0][1] == '-') {

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