[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 "util/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)
{
	struct timeval tv;
	struct tm tm;
	char dt[32];

	if (gettimeofday(&tv, NULL) || !localtime_r(&tv.tv_sec, &tm))
		return -1;

	if (!strftime(dt, sizeof(dt), "%Y%m%d%H%M%S", &tm))
		return -1;

	scnprintf(dir, sz, "%s%02u", dt, (unsigned)tv.tv_usec / 10000);

	return 0;
}

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"
	19	#include "util/parse-options.h"
	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	{
	41	struct timeval tv;
	42	struct tm tm;
	43	char dt[32];
	44
	45	if (gettimeofday(&tv, NULL) \|\| !localtime_r(&tv.tv_sec, &tm))
	46	return -1;
	47
	48	if (!strftime(dt, sizeof(dt), "%Y%m%d%H%M%S", &tm))
	49	return -1;
	50
	51	scnprintf(dir, sz, "%s%02u", dt, (unsigned)tv.tv_usec / 10000);
	52
	53	return 0;
	54	}
	55
d3b70220 AH	56	static bool same_kallsyms_reloc(const char from_dir, char to_dir)
	57	{
	58	char from[PATH_MAX];
	59	char to[PATH_MAX];
	60	const char *name;
	61	u64 addr1 = 0, addr2 = 0;
	62	int i;
	63
	64	scnprintf(from, sizeof(from), "%s/kallsyms", from_dir);
	65	scnprintf(to, sizeof(to), "%s/kallsyms", to_dir);
	66
	67	for (i = 0; (name = ref_reloc_sym_names[i]) != NULL; i++) {
	68	addr1 = kallsyms__get_function_start(from, name);
	69	if (addr1)
	70	break;
	71	}
	72
	73	if (name)
	74	addr2 = kallsyms__get_function_start(to, name);
	75
	76	return addr1 == addr2;
	77	}
	78
fc1b691d AH	79	static int build_id_cache__kcore_existing(const char from_dir, char to_dir,
	80	size_t to_dir_sz)
	81	{
	82	char from[PATH_MAX];
	83	char to[PATH_MAX];
d3b70220	84	char to_subdir[PATH_MAX];
fc1b691d AH	85	struct dirent *dent;
	86	int ret = -1;
	87	DIR *d;
	88
	89	d = opendir(to_dir);
	90	if (!d)
	91	return -1;
	92
	93	scnprintf(from, sizeof(from), "%s/modules", from_dir);
	94
	95	while (1) {
	96	dent = readdir(d);
	97	if (!dent)
	98	break;
	99	if (dent->d_type != DT_DIR)
	100	continue;
	101	scnprintf(to, sizeof(to), "%s/%s/modules", to_dir,
	102	dent->d_name);
d3b70220 AH	103	scnprintf(to_subdir, sizeof(to_subdir), "%s/%s",
	104	to_dir, dent->d_name);
	105	if (!compare_proc_modules(from, to) &&
	106	same_kallsyms_reloc(from_dir, to_subdir)) {
	107	strlcpy(to_dir, to_subdir, to_dir_sz);
fc1b691d AH	108	ret = 0;
	109	break;
	110	}
	111	}
	112
	113	closedir(d);
	114
	115	return ret;
	116	}
	117
e35f7362	118	static int build_id_cache__add_kcore(const char *filename, bool force)
fc1b691d	119	{
d77fac7f	120	char dir[32], sbuildid[SBUILD_ID_SIZE];
fc1b691d AH	121	char from_dir[PATH_MAX], to_dir[PATH_MAX];
	122	char *p;
	123
	124	strlcpy(from_dir, filename, sizeof(from_dir));
	125
	126	p = strrchr(from_dir, '/');
	127	if (!p \|\| strcmp(p + 1, "kcore"))
	128	return -1;
	129	*p = '\0';
	130
0b5a7935	131	if (build_id_cache__kcore_buildid(from_dir, sbuildid) < 0)
fc1b691d AH	132	return -1;
	133
	134	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s",
e35f7362	135	buildid_dir, sbuildid);
fc1b691d	136
5173fbb8 AH	137	if (!force &&
5173fbb8 AH	138	!build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
fc1b691d AH	139	pr_debug("same kcore found in %s\n", to_dir);
	140	return 0;
	141	}
	142
	143	if (build_id_cache__kcore_dir(dir, sizeof(dir)))
	144	return -1;
	145
	146	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s/%s",
e35f7362	147	buildid_dir, sbuildid, dir);
fc1b691d AH	148
	149	if (mkdir_p(to_dir, 0755))
	150	return -1;
	151
	152	if (kcore_copy(from_dir, to_dir)) {
	153	/* Remove YYYYmmddHHMMSShh directory */
	154	if (!rmdir(to_dir)) {
	155	p = strrchr(to_dir, '/');
	156	if (p)
	157	*p = '\0';
	158	/* Try to remove buildid directory */
	159	if (!rmdir(to_dir)) {
	160	p = strrchr(to_dir, '/');
	161	if (p)
	162	*p = '\0';
	163	/* Try to remove [kernel.kcore] directory */
	164	rmdir(to_dir);
	165	}
	166	}
	167	return -1;
	168	}
	169
	170	pr_debug("kcore added to build-id cache directory %s\n", to_dir);
	171
	172	return 0;
	173	}
	174
e35f7362	175	static int build_id_cache__add_file(const char *filename)
ef12a141	176	{
d77fac7f	177	char sbuild_id[SBUILD_ID_SIZE];
ef12a141 ACM	178	u8 build_id[BUILD_ID_SIZE];
	179	int err;
	180
	181	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	182	pr_debug("Couldn't read a build-id in %s\n", filename);
	183	return -1;
	184	}
	185
	186	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
e35f7362	187	err = build_id_cache__add_s(sbuild_id, filename,
7dbf4dcf	188	false, false);
cc169c7c MH	189	pr_debug("Adding %s %s: %s\n", sbuild_id, filename,
cc169c7c MH	190	err ? "FAIL" : "Ok");
ef12a141 ACM	191	return err;
	192	}
	193
e35f7362	194	static int build_id_cache__remove_file(const char *filename)
ef12a141 ACM	195	{
ef12a141 ACM	196	u8 build_id[BUILD_ID_SIZE];
d77fac7f	197	char sbuild_id[SBUILD_ID_SIZE];
ef12a141 ACM	198
	199	int err;
	200
	201	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	202	pr_debug("Couldn't read a build-id in %s\n", filename);
	203	return -1;
	204	}
	205
	206	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
e35f7362	207	err = build_id_cache__remove_s(sbuild_id);
cc169c7c MH	208	pr_debug("Removing %s %s: %s\n", sbuild_id, filename,
cc169c7c MH	209	err ? "FAIL" : "Ok");
ef12a141 ACM	210
	211	return err;
	212	}
	213
8d8c8e4c MH	214	static int build_id_cache__purge_path(const char *pathname)
	215	{
	216	struct strlist *list;
	217	struct str_node *pos;
	218	int err;
	219
	220	err = build_id_cache__list_build_ids(pathname, &list);
	221	if (err)
	222	goto out;
	223
	224	strlist__for_each(pos, list) {
	225	err = build_id_cache__remove_s(pos->s);
cc169c7c MH	226	pr_debug("Removing %s %s: %s\n", pos->s, pathname,
cc169c7c MH	227	err ? "FAIL" : "Ok");
8d8c8e4c MH	228	if (err)
	229	break;
	230	}
	231	strlist__delete(list);
	232
	233	out:
cc169c7c	234	pr_debug("Purging %s: %s\n", pathname, err ? "FAIL" : "Ok");
8d8c8e4c MH	235
	236	return err;
	237	}
	238
fbb6976c ACM	239	static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused)
	240	{
	241	char filename[PATH_MAX];
	242	u8 build_id[BUILD_ID_SIZE];
	243
	244	if (dso__build_id_filename(dso, filename, sizeof(filename)) &&
	245	filename__read_build_id(filename, build_id,
	246	sizeof(build_id)) != sizeof(build_id)) {
	247	if (errno == ENOENT)
	248	return false;
	249
48000a1a	250	pr_warning("Problems with %s file, consider removing it from the cache\n",
fbb6976c ACM	251	filename);
fbb6976c ACM	252	} else if (memcmp(dso->build_id, build_id, sizeof(dso->build_id))) {
48000a1a	253	pr_warning("Problems with %s file, consider removing it from the cache\n",
fbb6976c ACM	254	filename);
	255	}
	256
	257	return true;
	258	}
	259
e3ed75bb	260	static int build_id_cache__fprintf_missing(struct perf_session session, FILE fp)
fbb6976c	261	{
fbb6976c	262	perf_session__fprintf_dsos_buildid(session, fp, dso__missing_buildid_cache, 0);
fbb6976c ACM	263	return 0;
	264	}
	265
e35f7362	266	static int build_id_cache__update_file(const char *filename)
eeb49845 NK	267	{
eeb49845 NK	268	u8 build_id[BUILD_ID_SIZE];
d77fac7f	269	char sbuild_id[SBUILD_ID_SIZE];
eeb49845	270
a50d11a1	271	int err = 0;
eeb49845 NK	272
	273	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	274	pr_debug("Couldn't read a build-id in %s\n", filename);
	275	return -1;
	276	}
	277
	278	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
a50d11a1 MH	279	if (build_id_cache__cached(sbuild_id))
	280	err = build_id_cache__remove_s(sbuild_id);
	281
e35f7362 MH	282	if (!err)
	283	err = build_id_cache__add_s(sbuild_id, filename, false, false);
	284
cc169c7c MH	285	pr_debug("Updating %s %s: %s\n", sbuild_id, filename,
cc169c7c MH	286	err ? "FAIL" : "Ok");
eeb49845 NK	287
	288	return err;
	289	}
	290
472cc83c ACM	291	int cmd_buildid_cache(int argc, const char **argv,
472cc83c ACM	292	const char *prefix __maybe_unused)
ef12a141 ACM	293	{
	294	struct strlist *list;
	295	struct str_node *pos;
fbb6976c ACM	296	int ret = 0;
fbb6976c ACM	297	bool force = false;
472cc83c	298	char const *add_name_list_str = NULL,
fbb6976c	299	*remove_name_list_str = NULL,
8d8c8e4c	300	*purge_name_list_str = NULL,
eeb49845	301	*missing_filename = NULL,
fc1b691d	302	*update_name_list_str = NULL,
eec5a688	303	*kcore_filename = NULL;
340481ad	304	char sbuf[STRERR_BUFSIZE];
eeb49845	305
e3ed75bb NK	306	struct perf_data_file file = {
	307	.mode = PERF_DATA_MODE_READ,
	308	};
	309	struct perf_session *session = NULL;
	310
472cc83c ACM	311	const struct option buildid_cache_options[] = {
	312	OPT_STRING('a', "add", &add_name_list_str,
	313	"file list", "file(s) to add"),
fc1b691d AH	314	OPT_STRING('k', "kcore", &kcore_filename,
fc1b691d AH	315	"file", "kcore file to add"),
472cc83c ACM	316	OPT_STRING('r', "remove", &remove_name_list_str, "file list",
472cc83c ACM	317	"file(s) to remove"),
8d8c8e4c MH	318	OPT_STRING('p', "purge", &purge_name_list_str, "path list",
8d8c8e4c MH	319	"path(s) to remove (remove old caches too)"),
fbb6976c ACM	320	OPT_STRING('M', "missing", &missing_filename, "file",
	321	"to find missing build ids in the cache"),
	322	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
eeb49845 NK	323	OPT_STRING('u', "update", &update_name_list_str, "file list",
eeb49845 NK	324	"file(s) to update"),
472cc83c ACM	325	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
	326	OPT_END()
	327	};
	328	const char * const buildid_cache_usage[] = {
	329	"perf buildid-cache [<options>]",
	330	NULL
	331	};
	332
	333	argc = parse_options(argc, argv, buildid_cache_options,
	334	buildid_cache_usage, 0);
	335
0497d0a8 MH	336	if (argc \|\| (!add_name_list_str && !kcore_filename &&
	337	!remove_name_list_str && !purge_name_list_str &&
	338	!missing_filename && !update_name_list_str))
	339	usage_with_options(buildid_cache_usage, buildid_cache_options);
	340
e3ed75bb NK	341	if (missing_filename) {
	342	file.path = missing_filename;
	343	file.force = force;
	344
	345	session = perf_session__new(&file, false, NULL);
	346	if (session == NULL)
	347	return -1;
	348	}
	349
0a7e6d1b	350	if (symbol__init(session ? &session->header.env : NULL) < 0)
e3ed75bb	351	goto out;
472cc83c ACM	352
472cc83c ACM	353	setup_pager();
ef12a141	354
ef12a141	355	if (add_name_list_str) {
4a77e218	356	list = strlist__new(add_name_list_str, NULL);
ef12a141 ACM	357	if (list) {
ef12a141 ACM	358	strlist__for_each(pos, list)
e35f7362	359	if (build_id_cache__add_file(pos->s)) {
ef12a141 ACM	360	if (errno == EEXIST) {
	361	pr_debug("%s already in the cache\n",
	362	pos->s);
	363	continue;
	364	}
	365	pr_warning("Couldn't add %s: %s\n",
340481ad	366	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
ef12a141 ACM	367	}
	368
	369	strlist__delete(list);
	370	}
	371	}
	372
	373	if (remove_name_list_str) {
4a77e218	374	list = strlist__new(remove_name_list_str, NULL);
ef12a141 ACM	375	if (list) {
ef12a141 ACM	376	strlist__for_each(pos, list)
e35f7362	377	if (build_id_cache__remove_file(pos->s)) {
ef12a141 ACM	378	if (errno == ENOENT) {
	379	pr_debug("%s wasn't in the cache\n",
	380	pos->s);
	381	continue;
	382	}
	383	pr_warning("Couldn't remove %s: %s\n",
340481ad	384	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
ef12a141 ACM	385	}
	386
	387	strlist__delete(list);
	388	}
	389	}
	390
8d8c8e4c	391	if (purge_name_list_str) {
4a77e218	392	list = strlist__new(purge_name_list_str, NULL);
8d8c8e4c MH	393	if (list) {
	394	strlist__for_each(pos, list)
	395	if (build_id_cache__purge_path(pos->s)) {
	396	if (errno == ENOENT) {
	397	pr_debug("%s wasn't in the cache\n",
	398	pos->s);
	399	continue;
	400	}
	401	pr_warning("Couldn't remove %s: %s\n",
	402	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
	403	}
	404
	405	strlist__delete(list);
	406	}
	407	}
	408
fbb6976c	409	if (missing_filename)
e3ed75bb	410	ret = build_id_cache__fprintf_missing(session, stdout);
fbb6976c	411
eeb49845	412	if (update_name_list_str) {
4a77e218	413	list = strlist__new(update_name_list_str, NULL);
eeb49845 NK	414	if (list) {
eeb49845 NK	415	strlist__for_each(pos, list)
e35f7362	416	if (build_id_cache__update_file(pos->s)) {
eeb49845 NK	417	if (errno == ENOENT) {
	418	pr_debug("%s wasn't in the cache\n",
	419	pos->s);
	420	continue;
	421	}
	422	pr_warning("Couldn't update %s: %s\n",
340481ad	423	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
eeb49845 NK	424	}
	425
	426	strlist__delete(list);
	427	}
	428	}
	429
e35f7362	430	if (kcore_filename && build_id_cache__add_kcore(kcore_filename, force))
fc1b691d AH	431	pr_warning("Couldn't add %s\n", kcore_filename);
fc1b691d AH	432
e3ed75bb NK	433	out:
	434	if (session)
	435	perf_session__delete(session);
	436
fbb6976c	437	return ret;
ef12a141	438	}