[mirror_ubuntu-artful-kernel.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 <errno.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"
#include "util/time-utils.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, err = -1;

	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++) {
		err = kallsyms__get_function_start(from, name, &addr1);
		if (!err)
			break;
	}

	if (err)
		return false;

	if (kallsyms__get_function_start(to, name, &addr2))
		return false;

	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/%s/%s",
		  buildid_dir, DSO__NAME_KCORE, 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/%s/%s/%s",
		  buildid_dir, DSO__NAME_KCORE, 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_entry(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)
{
	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_entry(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, str_error_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_entry(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, str_error_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_entry(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, str_error_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_entry(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, str_error_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:
	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>
a43783ae	13	#include <errno.h>
fc1b691d	14	#include <unistd.h>
ef12a141 ACM	15	#include "builtin.h"
	16	#include "perf.h"
	17	#include "util/cache.h"
	18	#include "util/debug.h"
	19	#include "util/header.h"
4b6ab94e	20	#include <subcmd/parse-options.h>
ef12a141	21	#include "util/strlist.h"
ebb296c2	22	#include "util/build-id.h"
fbb6976c	23	#include "util/session.h"
4383db88	24	#include "util/symbol.h"
c5e4027e	25	#include "util/time-utils.h"
ef12a141	26
fc1b691d AH	27	static int build_id_cache__kcore_buildid(const char proc_dir, char sbuildid)
	28	{
	29	char root_dir[PATH_MAX];
fc1b691d AH	30	char *p;
	31
	32	strlcpy(root_dir, proc_dir, sizeof(root_dir));
	33
	34	p = strrchr(root_dir, '/');
	35	if (!p)
	36	return -1;
	37	*p = '\0';
0b5a7935	38	return sysfs__sprintf_build_id(root_dir, sbuildid);
fc1b691d AH	39	}
	40
	41	static int build_id_cache__kcore_dir(char *dir, size_t sz)
	42	{
37b20151	43	return fetch_current_timestamp(dir, sz);
fc1b691d AH	44	}
fc1b691d AH	45
d3b70220 AH	46	static bool same_kallsyms_reloc(const char from_dir, char to_dir)
	47	{
	48	char from[PATH_MAX];
	49	char to[PATH_MAX];
	50	const char *name;
	51	u64 addr1 = 0, addr2 = 0;
b843f62a	52	int i, err = -1;
d3b70220 AH	53
	54	scnprintf(from, sizeof(from), "%s/kallsyms", from_dir);
	55	scnprintf(to, sizeof(to), "%s/kallsyms", to_dir);
	56
	57	for (i = 0; (name = ref_reloc_sym_names[i]) != NULL; i++) {
b843f62a ACM	58	err = kallsyms__get_function_start(from, name, &addr1);
b843f62a ACM	59	if (!err)
d3b70220 AH	60	break;
	61	}
	62
b843f62a ACM	63	if (err)
	64	return false;
	65
	66	if (kallsyms__get_function_start(to, name, &addr2))
	67	return false;
d3b70220 AH	68
	69	return addr1 == addr2;
	70	}
	71
fc1b691d AH	72	static int build_id_cache__kcore_existing(const char from_dir, char to_dir,
	73	size_t to_dir_sz)
	74	{
	75	char from[PATH_MAX];
	76	char to[PATH_MAX];
d3b70220	77	char to_subdir[PATH_MAX];
fc1b691d AH	78	struct dirent *dent;
	79	int ret = -1;
	80	DIR *d;
	81
	82	d = opendir(to_dir);
	83	if (!d)
	84	return -1;
	85
	86	scnprintf(from, sizeof(from), "%s/modules", from_dir);
	87
	88	while (1) {
	89	dent = readdir(d);
	90	if (!dent)
	91	break;
	92	if (dent->d_type != DT_DIR)
	93	continue;
	94	scnprintf(to, sizeof(to), "%s/%s/modules", to_dir,
	95	dent->d_name);
d3b70220 AH	96	scnprintf(to_subdir, sizeof(to_subdir), "%s/%s",
	97	to_dir, dent->d_name);
	98	if (!compare_proc_modules(from, to) &&
	99	same_kallsyms_reloc(from_dir, to_subdir)) {
	100	strlcpy(to_dir, to_subdir, to_dir_sz);
fc1b691d AH	101	ret = 0;
	102	break;
	103	}
	104	}
	105
	106	closedir(d);
	107
	108	return ret;
	109	}
	110
e35f7362	111	static int build_id_cache__add_kcore(const char *filename, bool force)
fc1b691d	112	{
d77fac7f	113	char dir[32], sbuildid[SBUILD_ID_SIZE];
fc1b691d AH	114	char from_dir[PATH_MAX], to_dir[PATH_MAX];
	115	char *p;
	116
	117	strlcpy(from_dir, filename, sizeof(from_dir));
	118
	119	p = strrchr(from_dir, '/');
	120	if (!p \|\| strcmp(p + 1, "kcore"))
	121	return -1;
	122	*p = '\0';
	123
0b5a7935	124	if (build_id_cache__kcore_buildid(from_dir, sbuildid) < 0)
fc1b691d AH	125	return -1;
fc1b691d AH	126
0a77582f MH	127	scnprintf(to_dir, sizeof(to_dir), "%s/%s/%s",
0a77582f MH	128	buildid_dir, DSO__NAME_KCORE, sbuildid);
fc1b691d	129
5173fbb8 AH	130	if (!force &&
5173fbb8 AH	131	!build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
fc1b691d AH	132	pr_debug("same kcore found in %s\n", to_dir);
	133	return 0;
	134	}
	135
	136	if (build_id_cache__kcore_dir(dir, sizeof(dir)))
	137	return -1;
	138
0a77582f MH	139	scnprintf(to_dir, sizeof(to_dir), "%s/%s/%s/%s",
0a77582f MH	140	buildid_dir, DSO__NAME_KCORE, sbuildid, dir);
fc1b691d AH	141
	142	if (mkdir_p(to_dir, 0755))
	143	return -1;
	144
	145	if (kcore_copy(from_dir, to_dir)) {
	146	/* Remove YYYYmmddHHMMSShh directory */
	147	if (!rmdir(to_dir)) {
	148	p = strrchr(to_dir, '/');
	149	if (p)
	150	*p = '\0';
	151	/* Try to remove buildid directory */
	152	if (!rmdir(to_dir)) {
	153	p = strrchr(to_dir, '/');
	154	if (p)
	155	*p = '\0';
	156	/* Try to remove [kernel.kcore] directory */
	157	rmdir(to_dir);
	158	}
	159	}
	160	return -1;
	161	}
	162
	163	pr_debug("kcore added to build-id cache directory %s\n", to_dir);
	164
	165	return 0;
	166	}
	167
e35f7362	168	static int build_id_cache__add_file(const char *filename)
ef12a141	169	{
d77fac7f	170	char sbuild_id[SBUILD_ID_SIZE];
ef12a141 ACM	171	u8 build_id[BUILD_ID_SIZE];
	172	int err;
	173
	174	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	175	pr_debug("Couldn't read a build-id in %s\n", filename);
	176	return -1;
	177	}
	178
	179	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
e35f7362	180	err = build_id_cache__add_s(sbuild_id, filename,
7dbf4dcf	181	false, false);
cc169c7c MH	182	pr_debug("Adding %s %s: %s\n", sbuild_id, filename,
cc169c7c MH	183	err ? "FAIL" : "Ok");
ef12a141 ACM	184	return err;
	185	}
	186
e35f7362	187	static int build_id_cache__remove_file(const char *filename)
ef12a141 ACM	188	{
ef12a141 ACM	189	u8 build_id[BUILD_ID_SIZE];
d77fac7f	190	char sbuild_id[SBUILD_ID_SIZE];
ef12a141 ACM	191
	192	int err;
	193
	194	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	195	pr_debug("Couldn't read a build-id in %s\n", filename);
	196	return -1;
	197	}
	198
	199	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
e35f7362	200	err = build_id_cache__remove_s(sbuild_id);
cc169c7c MH	201	pr_debug("Removing %s %s: %s\n", sbuild_id, filename,
cc169c7c MH	202	err ? "FAIL" : "Ok");
ef12a141 ACM	203
	204	return err;
	205	}
	206
8d8c8e4c MH	207	static int build_id_cache__purge_path(const char *pathname)
	208	{
	209	struct strlist *list;
	210	struct str_node *pos;
	211	int err;
	212
	213	err = build_id_cache__list_build_ids(pathname, &list);
	214	if (err)
	215	goto out;
	216
602a1f4d	217	strlist__for_each_entry(pos, list) {
8d8c8e4c	218	err = build_id_cache__remove_s(pos->s);
cc169c7c MH	219	pr_debug("Removing %s %s: %s\n", pos->s, pathname,
cc169c7c MH	220	err ? "FAIL" : "Ok");
8d8c8e4c MH	221	if (err)
	222	break;
	223	}
	224	strlist__delete(list);
	225
	226	out:
cc169c7c	227	pr_debug("Purging %s: %s\n", pathname, err ? "FAIL" : "Ok");
8d8c8e4c MH	228
	229	return err;
	230	}
	231
fbb6976c ACM	232	static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused)
	233	{
	234	char filename[PATH_MAX];
	235	u8 build_id[BUILD_ID_SIZE];
	236
	237	if (dso__build_id_filename(dso, filename, sizeof(filename)) &&
	238	filename__read_build_id(filename, build_id,
	239	sizeof(build_id)) != sizeof(build_id)) {
	240	if (errno == ENOENT)
	241	return false;
	242
48000a1a	243	pr_warning("Problems with %s file, consider removing it from the cache\n",
fbb6976c ACM	244	filename);
fbb6976c ACM	245	} else if (memcmp(dso->build_id, build_id, sizeof(dso->build_id))) {
48000a1a	246	pr_warning("Problems with %s file, consider removing it from the cache\n",
fbb6976c ACM	247	filename);
	248	}
	249
	250	return true;
	251	}
	252
e3ed75bb	253	static int build_id_cache__fprintf_missing(struct perf_session session, FILE fp)
fbb6976c	254	{
fbb6976c	255	perf_session__fprintf_dsos_buildid(session, fp, dso__missing_buildid_cache, 0);
fbb6976c ACM	256	return 0;
	257	}
	258
e35f7362	259	static int build_id_cache__update_file(const char *filename)
eeb49845 NK	260	{
eeb49845 NK	261	u8 build_id[BUILD_ID_SIZE];
d77fac7f	262	char sbuild_id[SBUILD_ID_SIZE];
eeb49845	263
a50d11a1	264	int err = 0;
eeb49845 NK	265
	266	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	267	pr_debug("Couldn't read a build-id in %s\n", filename);
	268	return -1;
	269	}
	270
	271	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
a50d11a1 MH	272	if (build_id_cache__cached(sbuild_id))
	273	err = build_id_cache__remove_s(sbuild_id);
	274
e35f7362 MH	275	if (!err)
	276	err = build_id_cache__add_s(sbuild_id, filename, false, false);
	277
cc169c7c MH	278	pr_debug("Updating %s %s: %s\n", sbuild_id, filename,
cc169c7c MH	279	err ? "FAIL" : "Ok");
eeb49845 NK	280
	281	return err;
	282	}
	283
b0ad8ea6	284	int cmd_buildid_cache(int argc, const char **argv)
ef12a141 ACM	285	{
	286	struct strlist *list;
	287	struct str_node *pos;
fbb6976c ACM	288	int ret = 0;
fbb6976c ACM	289	bool force = false;
472cc83c	290	char const *add_name_list_str = NULL,
fbb6976c	291	*remove_name_list_str = NULL,
8d8c8e4c	292	*purge_name_list_str = NULL,
eeb49845	293	*missing_filename = NULL,
fc1b691d	294	*update_name_list_str = NULL,
eec5a688	295	*kcore_filename = NULL;
340481ad	296	char sbuf[STRERR_BUFSIZE];
eeb49845	297
e3ed75bb NK	298	struct perf_data_file file = {
	299	.mode = PERF_DATA_MODE_READ,
	300	};
	301	struct perf_session *session = NULL;
	302
472cc83c ACM	303	const struct option buildid_cache_options[] = {
	304	OPT_STRING('a', "add", &add_name_list_str,
	305	"file list", "file(s) to add"),
fc1b691d AH	306	OPT_STRING('k', "kcore", &kcore_filename,
fc1b691d AH	307	"file", "kcore file to add"),
472cc83c ACM	308	OPT_STRING('r', "remove", &remove_name_list_str, "file list",
472cc83c ACM	309	"file(s) to remove"),
8d8c8e4c MH	310	OPT_STRING('p', "purge", &purge_name_list_str, "path list",
8d8c8e4c MH	311	"path(s) to remove (remove old caches too)"),
fbb6976c ACM	312	OPT_STRING('M', "missing", &missing_filename, "file",
	313	"to find missing build ids in the cache"),
	314	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
eeb49845 NK	315	OPT_STRING('u', "update", &update_name_list_str, "file list",
eeb49845 NK	316	"file(s) to update"),
472cc83c ACM	317	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
	318	OPT_END()
	319	};
	320	const char * const buildid_cache_usage[] = {
	321	"perf buildid-cache [<options>]",
	322	NULL
	323	};
	324
	325	argc = parse_options(argc, argv, buildid_cache_options,
	326	buildid_cache_usage, 0);
	327
0497d0a8 MH	328	if (argc \|\| (!add_name_list_str && !kcore_filename &&
	329	!remove_name_list_str && !purge_name_list_str &&
	330	!missing_filename && !update_name_list_str))
	331	usage_with_options(buildid_cache_usage, buildid_cache_options);
	332
e3ed75bb NK	333	if (missing_filename) {
	334	file.path = missing_filename;
	335	file.force = force;
	336
	337	session = perf_session__new(&file, false, NULL);
	338	if (session == NULL)
	339	return -1;
	340	}
	341
0a7e6d1b	342	if (symbol__init(session ? &session->header.env : NULL) < 0)
e3ed75bb	343	goto out;
472cc83c ACM	344
472cc83c ACM	345	setup_pager();
ef12a141	346
ef12a141	347	if (add_name_list_str) {
4a77e218	348	list = strlist__new(add_name_list_str, NULL);
ef12a141	349	if (list) {
602a1f4d	350	strlist__for_each_entry(pos, list)
e35f7362	351	if (build_id_cache__add_file(pos->s)) {
ef12a141 ACM	352	if (errno == EEXIST) {
	353	pr_debug("%s already in the cache\n",
	354	pos->s);
	355	continue;
	356	}
	357	pr_warning("Couldn't add %s: %s\n",
c8b5f2c9	358	pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
ef12a141 ACM	359	}
	360
	361	strlist__delete(list);
	362	}
	363	}
	364
	365	if (remove_name_list_str) {
4a77e218	366	list = strlist__new(remove_name_list_str, NULL);
ef12a141	367	if (list) {
602a1f4d	368	strlist__for_each_entry(pos, list)
e35f7362	369	if (build_id_cache__remove_file(pos->s)) {
ef12a141 ACM	370	if (errno == ENOENT) {
	371	pr_debug("%s wasn't in the cache\n",
	372	pos->s);
	373	continue;
	374	}
	375	pr_warning("Couldn't remove %s: %s\n",
c8b5f2c9	376	pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
ef12a141 ACM	377	}
	378
	379	strlist__delete(list);
	380	}
	381	}
	382
8d8c8e4c	383	if (purge_name_list_str) {
4a77e218	384	list = strlist__new(purge_name_list_str, NULL);
8d8c8e4c	385	if (list) {
602a1f4d	386	strlist__for_each_entry(pos, list)
8d8c8e4c MH	387	if (build_id_cache__purge_path(pos->s)) {
	388	if (errno == ENOENT) {
	389	pr_debug("%s wasn't in the cache\n",
	390	pos->s);
	391	continue;
	392	}
	393	pr_warning("Couldn't remove %s: %s\n",
c8b5f2c9	394	pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
8d8c8e4c MH	395	}
	396
	397	strlist__delete(list);
	398	}
	399	}
	400
fbb6976c	401	if (missing_filename)
e3ed75bb	402	ret = build_id_cache__fprintf_missing(session, stdout);
fbb6976c	403
eeb49845	404	if (update_name_list_str) {
4a77e218	405	list = strlist__new(update_name_list_str, NULL);
eeb49845	406	if (list) {
602a1f4d	407	strlist__for_each_entry(pos, list)
e35f7362	408	if (build_id_cache__update_file(pos->s)) {
eeb49845 NK	409	if (errno == ENOENT) {
	410	pr_debug("%s wasn't in the cache\n",
	411	pos->s);
	412	continue;
	413	}
	414	pr_warning("Couldn't update %s: %s\n",
c8b5f2c9	415	pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
eeb49845 NK	416	}
	417
	418	strlist__delete(list);
	419	}
	420	}
	421
e35f7362	422	if (kcore_filename && build_id_cache__add_kcore(kcore_filename, force))
fc1b691d AH	423	pr_warning("Couldn't add %s\n", kcore_filename);
fc1b691d AH	424
e3ed75bb	425	out:
e1446551	426	perf_session__delete(session);
e3ed75bb	427
fbb6976c	428	return ret;
ef12a141	429	}