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perf buildid-cache: Support --list option 

'perf buildid-cache' allows to add/remove files into cache but there is
no option to list all cached files. Add --list option to list all
_valid_ cached files.

Ex,
  # perf buildid-cache --add /tmp/a.out
  # perf buildid-cache -l
    8a86ef73e44067bca52cc3f6cd3e5446c783391c /tmp/a.out

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Krister Johansen <kjlx@templeofstupid.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Sihyeon Jang <uneedsihyeon@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20180417041346.5617-3-ravi.bangoria@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
hifive-unleashed-5.1
Ravi Bangoria 2018-04-17 09:43:45 +05:30 committed by Arnaldo Carvalho de Melo
parent d4652f614f
commit 8e1e0d7467
2 changed files with 43 additions and 4 deletions
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4
tools/perf/Documentation/perf-buildid-cache.txt
View File

@ -59,7 +59,9 @@ OPTIONS
exactly same build-id, that is replaced by new one. It can be used
to update kallsyms and kernel dso to vmlinux in order to support
annotation.
-l::
--list::
List all valid binaries from cache.
-v::
--verbose::
Be more verbose.

43
tools/perf/builtin-buildid-cache.c
View File

@ -25,6 +25,7 @@
#include "util/session.h"
#include "util/symbol.h"
#include "util/time-utils.h"
#include "util/probe-file.h"
static int build_id_cache__kcore_buildid(const char *proc_dir, char *sbuildid)
{
@ -297,6 +298,26 @@ static int build_id_cache__update_file(const char *filename, struct nsinfo *nsi)
return err;
}
static int build_id_cache__show_all(void)
{
struct strlist *bidlist;
struct str_node *nd;
char *buf;
bidlist = build_id_cache__list_all(true);
if (!bidlist) {
pr_debug("Failed to get buildids: -%d\n", errno);
return -1;
}
strlist__for_each_entry(nd, bidlist) {
buf = build_id_cache__origname(nd->s);
fprintf(stdout, "%s %s\n", nd->s, buf);
free(buf);
}
strlist__delete(bidlist);
return 0;
}
int cmd_buildid_cache(int argc, const char **argv)
{
struct strlist *list;
@ -304,6 +325,8 @@ int cmd_buildid_cache(int argc, const char **argv)
int ret = 0;
int ns_id = -1;
bool force = false;
bool list_files = false;
bool opts_flag = false;
char const *add_name_list_str = NULL,
*remove_name_list_str = NULL,
*purge_name_list_str = NULL,
@ -327,6 +350,7 @@ int cmd_buildid_cache(int argc, const char **argv)
"file(s) to remove"),
OPT_STRING('p', "purge", &purge_name_list_str, "file list",
"file(s) to remove (remove old caches too)"),
OPT_BOOLEAN('l', "list", &list_files, "list all cached files"),
OPT_STRING('M', "missing", &missing_filename, "file",
"to find missing build ids in the cache"),
OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
@ -344,11 +368,19 @@ int cmd_buildid_cache(int argc, const char **argv)
argc = parse_options(argc, argv, buildid_cache_options,
buildid_cache_usage, 0);
if (argc || (!add_name_list_str && !kcore_filename &&
!remove_name_list_str && !purge_name_list_str &&
!missing_filename && !update_name_list_str))
opts_flag = add_name_list_str || kcore_filename ||
remove_name_list_str || purge_name_list_str ||
missing_filename || update_name_list_str;
if (argc || !(list_files || opts_flag))
usage_with_options(buildid_cache_usage, buildid_cache_options);
/* -l is exclusive. It can not be used with other options. */
if (list_files && opts_flag) {
usage_with_options_msg(buildid_cache_usage,
buildid_cache_options, "-l is exclusive.\n");
}
if (ns_id > 0)
nsi = nsinfo__new(ns_id);
@ -366,6 +398,11 @@ int cmd_buildid_cache(int argc, const char **argv)
setup_pager();
if (list_files) {
ret = build_id_cache__show_all();
goto out;
}
if (add_name_list_str) {
list = strlist__new(add_name_list_str, NULL);
if (list) {