[linux-2.6-block.git] / tools / perf / builtin-buildid-cache.c

/*
 * builtin-buildid-cache.c
 *
 * Builtin buildid-cache command: Manages build-id cache
 *
 * Copyright (C) 2010, Red Hat Inc.
 * Copyright (C) 2010, Arnaldo Carvalho de Melo <acme@redhat.com>
 */
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>
#include <dirent.h>
#include <unistd.h>
#include "builtin.h"
#include "perf.h"
#include "util/cache.h"
#include "util/debug.h"
#include "util/header.h"
#include <subcmd/parse-options.h>
#include "util/strlist.h"
#include "util/build-id.h"
#include "util/session.h"
#include "util/symbol.h"

static int build_id_cache__kcore_buildid(const char *proc_dir, char *sbuildid)
{
	char root_dir[PATH_MAX];
	char *p;

	strlcpy(root_dir, proc_dir, sizeof(root_dir));

	p = strrchr(root_dir, '/');
	if (!p)
		return -1;
	*p = '\0';
	return sysfs__sprintf_build_id(root_dir, sbuildid);
}

static int build_id_cache__kcore_dir(char *dir, size_t sz)
{
	return fetch_current_timestamp(dir, sz);
}

static bool same_kallsyms_reloc(const char *from_dir, char *to_dir)
{
	char from[PATH_MAX];
	char to[PATH_MAX];
	const char *name;
	u64 addr1 = 0, addr2 = 0;
	int i;

	scnprintf(from, sizeof(from), "%s/kallsyms", from_dir);
	scnprintf(to, sizeof(to), "%s/kallsyms", to_dir);

	for (i = 0; (name = ref_reloc_sym_names[i]) != NULL; i++) {
		addr1 = kallsyms__get_function_start(from, name);
		if (addr1)
			break;
	}

	if (name)
		addr2 = kallsyms__get_function_start(to, name);

	return addr1 == addr2;
}

static int build_id_cache__kcore_existing(const char *from_dir, char *to_dir,
					  size_t to_dir_sz)
{
	char from[PATH_MAX];
	char to[PATH_MAX];
	char to_subdir[PATH_MAX];
	struct dirent *dent;
	int ret = -1;
	DIR *d;

	d = opendir(to_dir);
	if (!d)
		return -1;

	scnprintf(from, sizeof(from), "%s/modules", from_dir);

	while (1) {
		dent = readdir(d);
		if (!dent)
			break;
		if (dent->d_type != DT_DIR)
			continue;
		scnprintf(to, sizeof(to), "%s/%s/modules", to_dir,
			  dent->d_name);
		scnprintf(to_subdir, sizeof(to_subdir), "%s/%s",
			  to_dir, dent->d_name);
		if (!compare_proc_modules(from, to) &&
		    same_kallsyms_reloc(from_dir, to_subdir)) {
			strlcpy(to_dir, to_subdir, to_dir_sz);
			ret = 0;
			break;
		}
	}

	closedir(d);

	return ret;
}

static int build_id_cache__add_kcore(const char *filename, bool force)
{
	char dir[32], sbuildid[SBUILD_ID_SIZE];
	char from_dir[PATH_MAX], to_dir[PATH_MAX];
	char *p;

	strlcpy(from_dir, filename, sizeof(from_dir));

	p = strrchr(from_dir, '/');
	if (!p || strcmp(p + 1, "kcore"))
		return -1;
	*p = '\0';

	if (build_id_cache__kcore_buildid(from_dir, sbuildid) < 0)
		return -1;

	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s",
		  buildid_dir, sbuildid);

	if (!force &&
	    !build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
		pr_debug("same kcore found in %s\n", to_dir);
		return 0;
	}

	if (build_id_cache__kcore_dir(dir, sizeof(dir)))
		return -1;

	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s/%s",
		  buildid_dir, sbuildid, dir);

	if (mkdir_p(to_dir, 0755))
		return -1;

	if (kcore_copy(from_dir, to_dir)) {
		/* Remove YYYYmmddHHMMSShh directory */
		if (!rmdir(to_dir)) {
			p = strrchr(to_dir, '/');
			if (p)
				*p = '\0';
			/* Try to remove buildid directory */
			if (!rmdir(to_dir)) {
				p = strrchr(to_dir, '/');
				if (p)
					*p = '\0';
				/* Try to remove [kernel.kcore] directory */
				rmdir(to_dir);
			}
		}
		return -1;
	}

	pr_debug("kcore added to build-id cache directory %s\n", to_dir);

	return 0;
}

static int build_id_cache__add_file(const char *filename)
{
	char sbuild_id[SBUILD_ID_SIZE];
	u8 build_id[BUILD_ID_SIZE];
	int err;

	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
		pr_debug("Couldn't read a build-id in %s\n", filename);
		return -1;
	}

	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
	err = build_id_cache__add_s(sbuild_id, filename,
				    false, false);
	pr_debug("Adding %s %s: %s\n", sbuild_id, filename,
		 err ? "FAIL" : "Ok");
	return err;
}

static int build_id_cache__remove_file(const char *filename)
{
	u8 build_id[BUILD_ID_SIZE];
	char sbuild_id[SBUILD_ID_SIZE];

	int err;

	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
		pr_debug("Couldn't read a build-id in %s\n", filename);
		return -1;
	}

	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
	err = build_id_cache__remove_s(sbuild_id);
	pr_debug("Removing %s %s: %s\n", sbuild_id, filename,
		 err ? "FAIL" : "Ok");

	return err;
}

static int build_id_cache__purge_path(const char *pathname)
{
	struct strlist *list;
	struct str_node *pos;
	int err;

	err = build_id_cache__list_build_ids(pathname, &list);
	if (err)
		goto out;

	strlist__for_each(pos, list) {
		err = build_id_cache__remove_s(pos->s);
		pr_debug("Removing %s %s: %s\n", pos->s, pathname,
			 err ? "FAIL" : "Ok");
		if (err)
			break;
	}
	strlist__delete(list);

out:
	pr_debug("Purging %s: %s\n", pathname, err ? "FAIL" : "Ok");

	return err;
}

static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused)
{
	char filename[PATH_MAX];
	u8 build_id[BUILD_ID_SIZE];

	if (dso__build_id_filename(dso, filename, sizeof(filename)) &&
	    filename__read_build_id(filename, build_id,
				    sizeof(build_id)) != sizeof(build_id)) {
		if (errno == ENOENT)
			return false;

		pr_warning("Problems with %s file, consider removing it from the cache\n",
			   filename);
	} else if (memcmp(dso->build_id, build_id, sizeof(dso->build_id))) {
		pr_warning("Problems with %s file, consider removing it from the cache\n",
			   filename);
	}

	return true;
}

static int build_id_cache__fprintf_missing(struct perf_session *session, FILE *fp)
{
	perf_session__fprintf_dsos_buildid(session, fp, dso__missing_buildid_cache, 0);
	return 0;
}

static int build_id_cache__update_file(const char *filename)
{
	u8 build_id[BUILD_ID_SIZE];
	char sbuild_id[SBUILD_ID_SIZE];

	int err = 0;

	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
		pr_debug("Couldn't read a build-id in %s\n", filename);
		return -1;
	}

	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
	if (build_id_cache__cached(sbuild_id))
		err = build_id_cache__remove_s(sbuild_id);

	if (!err)
		err = build_id_cache__add_s(sbuild_id, filename, false, false);

	pr_debug("Updating %s %s: %s\n", sbuild_id, filename,
		 err ? "FAIL" : "Ok");

	return err;
}

int cmd_buildid_cache(int argc, const char **argv,
		      const char *prefix __maybe_unused)
{
	struct strlist *list;
	struct str_node *pos;
	int ret = 0;
	bool force = false;
	char const *add_name_list_str = NULL,
		   *remove_name_list_str = NULL,
		   *purge_name_list_str = NULL,
		   *missing_filename = NULL,
		   *update_name_list_str = NULL,
		   *kcore_filename = NULL;
	char sbuf[STRERR_BUFSIZE];

	struct perf_data_file file = {
		.mode  = PERF_DATA_MODE_READ,
	};
	struct perf_session *session = NULL;

	const struct option buildid_cache_options[] = {
	OPT_STRING('a', "add", &add_name_list_str,
		   "file list", "file(s) to add"),
	OPT_STRING('k', "kcore", &kcore_filename,
		   "file", "kcore file to add"),
	OPT_STRING('r', "remove", &remove_name_list_str, "file list",
		    "file(s) to remove"),
	OPT_STRING('p', "purge", &purge_name_list_str, "path list",
		    "path(s) to remove (remove old caches too)"),
	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"),
	OPT_STRING('u', "update", &update_name_list_str, "file list",
		    "file(s) to update"),
	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
	OPT_END()
	};
	const char * const buildid_cache_usage[] = {
		"perf buildid-cache [<options>]",
		NULL
	};

	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))
		usage_with_options(buildid_cache_usage, buildid_cache_options);

	if (missing_filename) {
		file.path = missing_filename;
		file.force = force;

		session = perf_session__new(&file, false, NULL);
		if (session == NULL)
			return -1;
	}

	if (symbol__init(session ? &session->header.env : NULL) < 0)
		goto out;

	setup_pager();

	if (add_name_list_str) {
		list = strlist__new(add_name_list_str, NULL);
		if (list) {
			strlist__for_each(pos, list)
				if (build_id_cache__add_file(pos->s)) {
					if (errno == EEXIST) {
						pr_debug("%s already in the cache\n",
							 pos->s);
						continue;
					}
					pr_warning("Couldn't add %s: %s\n",
						   pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
				}

			strlist__delete(list);
		}
	}

	if (remove_name_list_str) {
		list = strlist__new(remove_name_list_str, NULL);
		if (list) {
			strlist__for_each(pos, list)
				if (build_id_cache__remove_file(pos->s)) {
					if (errno == ENOENT) {
						pr_debug("%s wasn't in the cache\n",
							 pos->s);
						continue;
					}
					pr_warning("Couldn't remove %s: %s\n",
						   pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
				}

			strlist__delete(list);
		}
	}

	if (purge_name_list_str) {
		list = strlist__new(purge_name_list_str, NULL);
		if (list) {
			strlist__for_each(pos, list)
				if (build_id_cache__purge_path(pos->s)) {
					if (errno == ENOENT) {
						pr_debug("%s wasn't in the cache\n",
							 pos->s);
						continue;
					}
					pr_warning("Couldn't remove %s: %s\n",
						   pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
				}

			strlist__delete(list);
		}
	}

	if (missing_filename)
		ret = build_id_cache__fprintf_missing(session, stdout);

	if (update_name_list_str) {
		list = strlist__new(update_name_list_str, NULL);
		if (list) {
			strlist__for_each(pos, list)
				if (build_id_cache__update_file(pos->s)) {
					if (errno == ENOENT) {
						pr_debug("%s wasn't in the cache\n",
							 pos->s);
						continue;
					}
					pr_warning("Couldn't update %s: %s\n",
						   pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
				}

			strlist__delete(list);
		}
	}

	if (kcore_filename && build_id_cache__add_kcore(kcore_filename, force))
		pr_warning("Couldn't add %s\n", kcore_filename);

out:
	if (session)
		perf_session__delete(session);

	return ret;
}
Commit	Line	Data
ef12a141 ACM	1	/*
	2	* builtin-buildid-cache.c
	3	*
	4	* Builtin buildid-cache command: Manages build-id cache
	5	*
	6	* Copyright (C) 2010, Red Hat Inc.
	7	* Copyright (C) 2010, Arnaldo Carvalho de Melo <acme@redhat.com>
	8	*/
fc1b691d AH	9	#include <sys/types.h>
	10	#include <sys/time.h>
	11	#include <time.h>
	12	#include <dirent.h>
	13	#include <unistd.h>
ef12a141 ACM	14	#include "builtin.h"
	15	#include "perf.h"
	16	#include "util/cache.h"
	17	#include "util/debug.h"
	18	#include "util/header.h"
4b6ab94e	19	#include <subcmd/parse-options.h>
ef12a141	20	#include "util/strlist.h"
ebb296c2	21	#include "util/build-id.h"
fbb6976c	22	#include "util/session.h"
4383db88	23	#include "util/symbol.h"
ef12a141	24
fc1b691d AH	25	static int build_id_cache__kcore_buildid(const char proc_dir, char sbuildid)
	26	{
	27	char root_dir[PATH_MAX];
fc1b691d AH	28	char *p;
	29
	30	strlcpy(root_dir, proc_dir, sizeof(root_dir));
	31
	32	p = strrchr(root_dir, '/');
	33	if (!p)
	34	return -1;
	35	*p = '\0';
0b5a7935	36	return sysfs__sprintf_build_id(root_dir, sbuildid);
fc1b691d AH	37	}
	38
	39	static int build_id_cache__kcore_dir(char *dir, size_t sz)
	40	{
37b20151	41	return fetch_current_timestamp(dir, sz);
fc1b691d AH	42	}
fc1b691d AH	43
d3b70220 AH	44	static bool same_kallsyms_reloc(const char from_dir, char to_dir)
	45	{
	46	char from[PATH_MAX];
	47	char to[PATH_MAX];
	48	const char *name;
	49	u64 addr1 = 0, addr2 = 0;
	50	int i;
	51
	52	scnprintf(from, sizeof(from), "%s/kallsyms", from_dir);
	53	scnprintf(to, sizeof(to), "%s/kallsyms", to_dir);
	54
	55	for (i = 0; (name = ref_reloc_sym_names[i]) != NULL; i++) {
	56	addr1 = kallsyms__get_function_start(from, name);
	57	if (addr1)
	58	break;
	59	}
	60
	61	if (name)
	62	addr2 = kallsyms__get_function_start(to, name);
	63
	64	return addr1 == addr2;
	65	}
	66
fc1b691d AH	67	static int build_id_cache__kcore_existing(const char from_dir, char to_dir,
	68	size_t to_dir_sz)
	69	{
	70	char from[PATH_MAX];
	71	char to[PATH_MAX];
d3b70220	72	char to_subdir[PATH_MAX];
fc1b691d AH	73	struct dirent *dent;
	74	int ret = -1;
	75	DIR *d;
	76
	77	d = opendir(to_dir);
	78	if (!d)
	79	return -1;
	80
	81	scnprintf(from, sizeof(from), "%s/modules", from_dir);
	82
	83	while (1) {
	84	dent = readdir(d);
	85	if (!dent)
	86	break;
	87	if (dent->d_type != DT_DIR)
	88	continue;
	89	scnprintf(to, sizeof(to), "%s/%s/modules", to_dir,
	90	dent->d_name);
d3b70220 AH	91	scnprintf(to_subdir, sizeof(to_subdir), "%s/%s",
	92	to_dir, dent->d_name);
	93	if (!compare_proc_modules(from, to) &&
	94	same_kallsyms_reloc(from_dir, to_subdir)) {
	95	strlcpy(to_dir, to_subdir, to_dir_sz);
fc1b691d AH	96	ret = 0;
	97	break;
	98	}
	99	}
	100
	101	closedir(d);
	102
	103	return ret;
	104	}
	105
e35f7362	106	static int build_id_cache__add_kcore(const char *filename, bool force)
fc1b691d	107	{
d77fac7f	108	char dir[32], sbuildid[SBUILD_ID_SIZE];
fc1b691d AH	109	char from_dir[PATH_MAX], to_dir[PATH_MAX];
	110	char *p;
	111
	112	strlcpy(from_dir, filename, sizeof(from_dir));
	113
	114	p = strrchr(from_dir, '/');
	115	if (!p \|\| strcmp(p + 1, "kcore"))
	116	return -1;
	117	*p = '\0';
	118
0b5a7935	119	if (build_id_cache__kcore_buildid(from_dir, sbuildid) < 0)
fc1b691d AH	120	return -1;
	121
	122	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s",
e35f7362	123	buildid_dir, sbuildid);
fc1b691d	124
5173fbb8 AH	125	if (!force &&
5173fbb8 AH	126	!build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
fc1b691d AH	127	pr_debug("same kcore found in %s\n", to_dir);
	128	return 0;
	129	}
	130
	131	if (build_id_cache__kcore_dir(dir, sizeof(dir)))
	132	return -1;
	133
	134	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s/%s",
e35f7362	135	buildid_dir, sbuildid, dir);
fc1b691d AH	136
	137	if (mkdir_p(to_dir, 0755))
	138	return -1;
	139
	140	if (kcore_copy(from_dir, to_dir)) {
	141	/* Remove YYYYmmddHHMMSShh directory */
	142	if (!rmdir(to_dir)) {
	143	p = strrchr(to_dir, '/');
	144	if (p)
	145	*p = '\0';
	146	/* Try to remove buildid directory */
	147	if (!rmdir(to_dir)) {
	148	p = strrchr(to_dir, '/');
	149	if (p)
	150	*p = '\0';
	151	/* Try to remove [kernel.kcore] directory */
	152	rmdir(to_dir);
	153	}
	154	}
	155	return -1;
	156	}
	157
	158	pr_debug("kcore added to build-id cache directory %s\n", to_dir);
	159
	160	return 0;
	161	}
	162
e35f7362	163	static int build_id_cache__add_file(const char *filename)
ef12a141	164	{
d77fac7f	165	char sbuild_id[SBUILD_ID_SIZE];
ef12a141 ACM	166	u8 build_id[BUILD_ID_SIZE];
	167	int err;
	168
	169	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	170	pr_debug("Couldn't read a build-id in %s\n", filename);
	171	return -1;
	172	}
	173
	174	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
e35f7362	175	err = build_id_cache__add_s(sbuild_id, filename,
7dbf4dcf	176	false, false);
cc169c7c MH	177	pr_debug("Adding %s %s: %s\n", sbuild_id, filename,
cc169c7c MH	178	err ? "FAIL" : "Ok");
ef12a141 ACM	179	return err;
	180	}
	181
e35f7362	182	static int build_id_cache__remove_file(const char *filename)
ef12a141 ACM	183	{
ef12a141 ACM	184	u8 build_id[BUILD_ID_SIZE];
d77fac7f	185	char sbuild_id[SBUILD_ID_SIZE];
ef12a141 ACM	186
	187	int err;
	188
	189	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	190	pr_debug("Couldn't read a build-id in %s\n", filename);
	191	return -1;
	192	}
	193
	194	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
e35f7362	195	err = build_id_cache__remove_s(sbuild_id);
cc169c7c MH	196	pr_debug("Removing %s %s: %s\n", sbuild_id, filename,
cc169c7c MH	197	err ? "FAIL" : "Ok");
ef12a141 ACM	198
	199	return err;
	200	}
	201
8d8c8e4c MH	202	static int build_id_cache__purge_path(const char *pathname)
	203	{
	204	struct strlist *list;
	205	struct str_node *pos;
	206	int err;
	207
	208	err = build_id_cache__list_build_ids(pathname, &list);
	209	if (err)
	210	goto out;
	211
	212	strlist__for_each(pos, list) {
	213	err = build_id_cache__remove_s(pos->s);
cc169c7c MH	214	pr_debug("Removing %s %s: %s\n", pos->s, pathname,
cc169c7c MH	215	err ? "FAIL" : "Ok");
8d8c8e4c MH	216	if (err)
	217	break;
	218	}
	219	strlist__delete(list);
	220
	221	out:
cc169c7c	222	pr_debug("Purging %s: %s\n", pathname, err ? "FAIL" : "Ok");
8d8c8e4c MH	223
	224	return err;
	225	}
	226
fbb6976c ACM	227	static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused)
	228	{
	229	char filename[PATH_MAX];
	230	u8 build_id[BUILD_ID_SIZE];
	231
	232	if (dso__build_id_filename(dso, filename, sizeof(filename)) &&
	233	filename__read_build_id(filename, build_id,
	234	sizeof(build_id)) != sizeof(build_id)) {
	235	if (errno == ENOENT)
	236	return false;
	237
48000a1a	238	pr_warning("Problems with %s file, consider removing it from the cache\n",
fbb6976c ACM	239	filename);
fbb6976c ACM	240	} else if (memcmp(dso->build_id, build_id, sizeof(dso->build_id))) {
48000a1a	241	pr_warning("Problems with %s file, consider removing it from the cache\n",
fbb6976c ACM	242	filename);
	243	}
	244
	245	return true;
	246	}
	247
e3ed75bb	248	static int build_id_cache__fprintf_missing(struct perf_session session, FILE fp)
fbb6976c	249	{
fbb6976c	250	perf_session__fprintf_dsos_buildid(session, fp, dso__missing_buildid_cache, 0);
fbb6976c ACM	251	return 0;
	252	}
	253
e35f7362	254	static int build_id_cache__update_file(const char *filename)
eeb49845 NK	255	{
eeb49845 NK	256	u8 build_id[BUILD_ID_SIZE];
d77fac7f	257	char sbuild_id[SBUILD_ID_SIZE];
eeb49845	258
a50d11a1	259	int err = 0;
eeb49845 NK	260
	261	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	262	pr_debug("Couldn't read a build-id in %s\n", filename);
	263	return -1;
	264	}
	265
	266	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
a50d11a1 MH	267	if (build_id_cache__cached(sbuild_id))
	268	err = build_id_cache__remove_s(sbuild_id);
	269
e35f7362 MH	270	if (!err)
	271	err = build_id_cache__add_s(sbuild_id, filename, false, false);
	272
cc169c7c MH	273	pr_debug("Updating %s %s: %s\n", sbuild_id, filename,
cc169c7c MH	274	err ? "FAIL" : "Ok");
eeb49845 NK	275
	276	return err;
	277	}
	278
472cc83c ACM	279	int cmd_buildid_cache(int argc, const char **argv,
472cc83c ACM	280	const char *prefix __maybe_unused)
ef12a141 ACM	281	{
	282	struct strlist *list;
	283	struct str_node *pos;
fbb6976c ACM	284	int ret = 0;
fbb6976c ACM	285	bool force = false;
472cc83c	286	char const *add_name_list_str = NULL,
fbb6976c	287	*remove_name_list_str = NULL,
8d8c8e4c	288	*purge_name_list_str = NULL,
eeb49845	289	*missing_filename = NULL,
fc1b691d	290	*update_name_list_str = NULL,
eec5a688	291	*kcore_filename = NULL;
340481ad	292	char sbuf[STRERR_BUFSIZE];
eeb49845	293
e3ed75bb NK	294	struct perf_data_file file = {
	295	.mode = PERF_DATA_MODE_READ,
	296	};
	297	struct perf_session *session = NULL;
	298
472cc83c ACM	299	const struct option buildid_cache_options[] = {
	300	OPT_STRING('a', "add", &add_name_list_str,
	301	"file list", "file(s) to add"),
fc1b691d AH	302	OPT_STRING('k', "kcore", &kcore_filename,
fc1b691d AH	303	"file", "kcore file to add"),
472cc83c ACM	304	OPT_STRING('r', "remove", &remove_name_list_str, "file list",
472cc83c ACM	305	"file(s) to remove"),
8d8c8e4c MH	306	OPT_STRING('p', "purge", &purge_name_list_str, "path list",
8d8c8e4c MH	307	"path(s) to remove (remove old caches too)"),
fbb6976c ACM	308	OPT_STRING('M', "missing", &missing_filename, "file",
	309	"to find missing build ids in the cache"),
	310	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
eeb49845 NK	311	OPT_STRING('u', "update", &update_name_list_str, "file list",
eeb49845 NK	312	"file(s) to update"),
472cc83c ACM	313	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
	314	OPT_END()
	315	};
	316	const char * const buildid_cache_usage[] = {
	317	"perf buildid-cache [<options>]",
	318	NULL
	319	};
	320
	321	argc = parse_options(argc, argv, buildid_cache_options,
	322	buildid_cache_usage, 0);
	323
0497d0a8 MH	324	if (argc \|\| (!add_name_list_str && !kcore_filename &&
	325	!remove_name_list_str && !purge_name_list_str &&
	326	!missing_filename && !update_name_list_str))
	327	usage_with_options(buildid_cache_usage, buildid_cache_options);
	328
e3ed75bb NK	329	if (missing_filename) {
	330	file.path = missing_filename;
	331	file.force = force;
	332
	333	session = perf_session__new(&file, false, NULL);
	334	if (session == NULL)
	335	return -1;
	336	}
	337
0a7e6d1b	338	if (symbol__init(session ? &session->header.env : NULL) < 0)
e3ed75bb	339	goto out;
472cc83c ACM	340
472cc83c ACM	341	setup_pager();
ef12a141	342
ef12a141	343	if (add_name_list_str) {
4a77e218	344	list = strlist__new(add_name_list_str, NULL);
ef12a141 ACM	345	if (list) {
ef12a141 ACM	346	strlist__for_each(pos, list)
e35f7362	347	if (build_id_cache__add_file(pos->s)) {
ef12a141 ACM	348	if (errno == EEXIST) {
	349	pr_debug("%s already in the cache\n",
	350	pos->s);
	351	continue;
	352	}
	353	pr_warning("Couldn't add %s: %s\n",
340481ad	354	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
ef12a141 ACM	355	}
	356
	357	strlist__delete(list);
	358	}
	359	}
	360
	361	if (remove_name_list_str) {
4a77e218	362	list = strlist__new(remove_name_list_str, NULL);
ef12a141 ACM	363	if (list) {
ef12a141 ACM	364	strlist__for_each(pos, list)
e35f7362	365	if (build_id_cache__remove_file(pos->s)) {
ef12a141 ACM	366	if (errno == ENOENT) {
	367	pr_debug("%s wasn't in the cache\n",
	368	pos->s);
	369	continue;
	370	}
	371	pr_warning("Couldn't remove %s: %s\n",
340481ad	372	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
ef12a141 ACM	373	}
	374
	375	strlist__delete(list);
	376	}
	377	}
	378
8d8c8e4c	379	if (purge_name_list_str) {
4a77e218	380	list = strlist__new(purge_name_list_str, NULL);
8d8c8e4c MH	381	if (list) {
	382	strlist__for_each(pos, list)
	383	if (build_id_cache__purge_path(pos->s)) {
	384	if (errno == ENOENT) {
	385	pr_debug("%s wasn't in the cache\n",
	386	pos->s);
	387	continue;
	388	}
	389	pr_warning("Couldn't remove %s: %s\n",
	390	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
	391	}
	392
	393	strlist__delete(list);
	394	}
	395	}
	396
fbb6976c	397	if (missing_filename)
e3ed75bb	398	ret = build_id_cache__fprintf_missing(session, stdout);
fbb6976c	399
eeb49845	400	if (update_name_list_str) {
4a77e218	401	list = strlist__new(update_name_list_str, NULL);
eeb49845 NK	402	if (list) {
eeb49845 NK	403	strlist__for_each(pos, list)
e35f7362	404	if (build_id_cache__update_file(pos->s)) {
eeb49845 NK	405	if (errno == ENOENT) {
	406	pr_debug("%s wasn't in the cache\n",
	407	pos->s);
	408	continue;
	409	}
	410	pr_warning("Couldn't update %s: %s\n",
340481ad	411	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
eeb49845 NK	412	}
	413
	414	strlist__delete(list);
	415	}
	416	}
	417
e35f7362	418	if (kcore_filename && build_id_cache__add_kcore(kcore_filename, force))
fc1b691d AH	419	pr_warning("Couldn't add %s\n", kcore_filename);
fc1b691d AH	420
e3ed75bb NK	421	out:
	422	if (session)
	423	perf_session__delete(session);
	424
fbb6976c	425	return ret;
ef12a141	426	}