[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 notes[PATH_MAX];
	u8 build_id[BUILD_ID_SIZE];
	char *p;

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

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

	scnprintf(notes, sizeof(notes), "%s/sys/kernel/notes", root_dir);

	if (sysfs__read_build_id(notes, build_id, sizeof(build_id)))
		return -1;

	build_id__sprintf(build_id, sizeof(build_id), sbuildid);

	return 0;
}

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[BUILD_ID_SIZE * 2 + 1];
	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))
		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[BUILD_ID_SIZE * 2 + 1];
	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[BUILD_ID_SIZE * 2 + 1];

	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[BUILD_ID_SIZE * 2 + 1];

	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(true, add_name_list_str);
		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(true, remove_name_list_str);
		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(true, purge_name_list_str);
		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(true, update_name_list_str);
		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];
	28	char notes[PATH_MAX];
	29	u8 build_id[BUILD_ID_SIZE];
	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';
	38
	39	scnprintf(notes, sizeof(notes), "%s/sys/kernel/notes", root_dir);
	40
	41	if (sysfs__read_build_id(notes, build_id, sizeof(build_id)))
	42	return -1;
	43
	44	build_id__sprintf(build_id, sizeof(build_id), sbuildid);
	45
	46	return 0;
	47	}
	48
	49	static int build_id_cache__kcore_dir(char *dir, size_t sz)
	50	{
	51	struct timeval tv;
	52	struct tm tm;
	53	char dt[32];
	54
	55	if (gettimeofday(&tv, NULL) \|\| !localtime_r(&tv.tv_sec, &tm))
	56	return -1;
	57
	58	if (!strftime(dt, sizeof(dt), "%Y%m%d%H%M%S", &tm))
	59	return -1;
	60
	61	scnprintf(dir, sz, "%s%02u", dt, (unsigned)tv.tv_usec / 10000);
	62
	63	return 0;
	64	}
	65
d3b70220 AH	66	static bool same_kallsyms_reloc(const char from_dir, char to_dir)
	67	{
	68	char from[PATH_MAX];
	69	char to[PATH_MAX];
	70	const char *name;
	71	u64 addr1 = 0, addr2 = 0;
	72	int i;
	73
	74	scnprintf(from, sizeof(from), "%s/kallsyms", from_dir);
	75	scnprintf(to, sizeof(to), "%s/kallsyms", to_dir);
	76
	77	for (i = 0; (name = ref_reloc_sym_names[i]) != NULL; i++) {
	78	addr1 = kallsyms__get_function_start(from, name);
	79	if (addr1)
	80	break;
	81	}
	82
	83	if (name)
	84	addr2 = kallsyms__get_function_start(to, name);
	85
	86	return addr1 == addr2;
	87	}
	88
fc1b691d AH	89	static int build_id_cache__kcore_existing(const char from_dir, char to_dir,
	90	size_t to_dir_sz)
	91	{
	92	char from[PATH_MAX];
	93	char to[PATH_MAX];
d3b70220	94	char to_subdir[PATH_MAX];
fc1b691d AH	95	struct dirent *dent;
	96	int ret = -1;
	97	DIR *d;
	98
	99	d = opendir(to_dir);
	100	if (!d)
	101	return -1;
	102
	103	scnprintf(from, sizeof(from), "%s/modules", from_dir);
	104
	105	while (1) {
	106	dent = readdir(d);
	107	if (!dent)
	108	break;
	109	if (dent->d_type != DT_DIR)
	110	continue;
	111	scnprintf(to, sizeof(to), "%s/%s/modules", to_dir,
	112	dent->d_name);
d3b70220 AH	113	scnprintf(to_subdir, sizeof(to_subdir), "%s/%s",
	114	to_dir, dent->d_name);
	115	if (!compare_proc_modules(from, to) &&
	116	same_kallsyms_reloc(from_dir, to_subdir)) {
	117	strlcpy(to_dir, to_subdir, to_dir_sz);
fc1b691d AH	118	ret = 0;
	119	break;
	120	}
	121	}
	122
	123	closedir(d);
	124
	125	return ret;
	126	}
	127
e35f7362	128	static int build_id_cache__add_kcore(const char *filename, bool force)
fc1b691d AH	129	{
	130	char dir[32], sbuildid[BUILD_ID_SIZE * 2 + 1];
	131	char from_dir[PATH_MAX], to_dir[PATH_MAX];
	132	char *p;
	133
	134	strlcpy(from_dir, filename, sizeof(from_dir));
	135
	136	p = strrchr(from_dir, '/');
	137	if (!p \|\| strcmp(p + 1, "kcore"))
	138	return -1;
	139	*p = '\0';
	140
	141	if (build_id_cache__kcore_buildid(from_dir, sbuildid))
	142	return -1;
	143
	144	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s",
e35f7362	145	buildid_dir, sbuildid);
fc1b691d	146
5173fbb8 AH	147	if (!force &&
5173fbb8 AH	148	!build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
fc1b691d AH	149	pr_debug("same kcore found in %s\n", to_dir);
	150	return 0;
	151	}
	152
	153	if (build_id_cache__kcore_dir(dir, sizeof(dir)))
	154	return -1;
	155
	156	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s/%s",
e35f7362	157	buildid_dir, sbuildid, dir);
fc1b691d AH	158
	159	if (mkdir_p(to_dir, 0755))
	160	return -1;
	161
	162	if (kcore_copy(from_dir, to_dir)) {
	163	/* Remove YYYYmmddHHMMSShh directory */
	164	if (!rmdir(to_dir)) {
	165	p = strrchr(to_dir, '/');
	166	if (p)
	167	*p = '\0';
	168	/* Try to remove buildid directory */
	169	if (!rmdir(to_dir)) {
	170	p = strrchr(to_dir, '/');
	171	if (p)
	172	*p = '\0';
	173	/* Try to remove [kernel.kcore] directory */
	174	rmdir(to_dir);
	175	}
	176	}
	177	return -1;
	178	}
	179
	180	pr_debug("kcore added to build-id cache directory %s\n", to_dir);
	181
	182	return 0;
	183	}
	184
e35f7362	185	static int build_id_cache__add_file(const char *filename)
ef12a141 ACM	186	{
	187	char sbuild_id[BUILD_ID_SIZE * 2 + 1];
	188	u8 build_id[BUILD_ID_SIZE];
	189	int err;
	190
	191	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	192	pr_debug("Couldn't read a build-id in %s\n", filename);
	193	return -1;
	194	}
	195
	196	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
e35f7362	197	err = build_id_cache__add_s(sbuild_id, filename,
7dbf4dcf	198	false, false);
cc169c7c MH	199	pr_debug("Adding %s %s: %s\n", sbuild_id, filename,
cc169c7c MH	200	err ? "FAIL" : "Ok");
ef12a141 ACM	201	return err;
	202	}
	203
e35f7362	204	static int build_id_cache__remove_file(const char *filename)
ef12a141 ACM	205	{
	206	u8 build_id[BUILD_ID_SIZE];
	207	char sbuild_id[BUILD_ID_SIZE * 2 + 1];
	208
	209	int err;
	210
	211	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	212	pr_debug("Couldn't read a build-id in %s\n", filename);
	213	return -1;
	214	}
	215
	216	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
e35f7362	217	err = build_id_cache__remove_s(sbuild_id);
cc169c7c MH	218	pr_debug("Removing %s %s: %s\n", sbuild_id, filename,
cc169c7c MH	219	err ? "FAIL" : "Ok");
ef12a141 ACM	220
	221	return err;
	222	}
	223
8d8c8e4c MH	224	static int build_id_cache__purge_path(const char *pathname)
	225	{
	226	struct strlist *list;
	227	struct str_node *pos;
	228	int err;
	229
	230	err = build_id_cache__list_build_ids(pathname, &list);
	231	if (err)
	232	goto out;
	233
	234	strlist__for_each(pos, list) {
	235	err = build_id_cache__remove_s(pos->s);
cc169c7c MH	236	pr_debug("Removing %s %s: %s\n", pos->s, pathname,
cc169c7c MH	237	err ? "FAIL" : "Ok");
8d8c8e4c MH	238	if (err)
	239	break;
	240	}
	241	strlist__delete(list);
	242
	243	out:
cc169c7c	244	pr_debug("Purging %s: %s\n", pathname, err ? "FAIL" : "Ok");
8d8c8e4c MH	245
	246	return err;
	247	}
	248
fbb6976c ACM	249	static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused)
	250	{
	251	char filename[PATH_MAX];
	252	u8 build_id[BUILD_ID_SIZE];
	253
	254	if (dso__build_id_filename(dso, filename, sizeof(filename)) &&
	255	filename__read_build_id(filename, build_id,
	256	sizeof(build_id)) != sizeof(build_id)) {
	257	if (errno == ENOENT)
	258	return false;
	259
48000a1a	260	pr_warning("Problems with %s file, consider removing it from the cache\n",
fbb6976c ACM	261	filename);
fbb6976c ACM	262	} else if (memcmp(dso->build_id, build_id, sizeof(dso->build_id))) {
48000a1a	263	pr_warning("Problems with %s file, consider removing it from the cache\n",
fbb6976c ACM	264	filename);
	265	}
	266
	267	return true;
	268	}
	269
e3ed75bb	270	static int build_id_cache__fprintf_missing(struct perf_session session, FILE fp)
fbb6976c	271	{
fbb6976c	272	perf_session__fprintf_dsos_buildid(session, fp, dso__missing_buildid_cache, 0);
fbb6976c ACM	273	return 0;
	274	}
	275
e35f7362	276	static int build_id_cache__update_file(const char *filename)
eeb49845 NK	277	{
	278	u8 build_id[BUILD_ID_SIZE];
	279	char sbuild_id[BUILD_ID_SIZE * 2 + 1];
	280
a50d11a1	281	int err = 0;
eeb49845 NK	282
	283	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	284	pr_debug("Couldn't read a build-id in %s\n", filename);
	285	return -1;
	286	}
	287
	288	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
a50d11a1 MH	289	if (build_id_cache__cached(sbuild_id))
	290	err = build_id_cache__remove_s(sbuild_id);
	291
e35f7362 MH	292	if (!err)
	293	err = build_id_cache__add_s(sbuild_id, filename, false, false);
	294
cc169c7c MH	295	pr_debug("Updating %s %s: %s\n", sbuild_id, filename,
cc169c7c MH	296	err ? "FAIL" : "Ok");
eeb49845 NK	297
	298	return err;
	299	}
	300
472cc83c ACM	301	int cmd_buildid_cache(int argc, const char **argv,
472cc83c ACM	302	const char *prefix __maybe_unused)
ef12a141 ACM	303	{
	304	struct strlist *list;
	305	struct str_node *pos;
fbb6976c ACM	306	int ret = 0;
fbb6976c ACM	307	bool force = false;
472cc83c	308	char const *add_name_list_str = NULL,
fbb6976c	309	*remove_name_list_str = NULL,
8d8c8e4c	310	*purge_name_list_str = NULL,
eeb49845	311	*missing_filename = NULL,
fc1b691d	312	*update_name_list_str = NULL,
eec5a688	313	*kcore_filename = NULL;
340481ad	314	char sbuf[STRERR_BUFSIZE];
eeb49845	315
e3ed75bb NK	316	struct perf_data_file file = {
	317	.mode = PERF_DATA_MODE_READ,
	318	};
	319	struct perf_session *session = NULL;
	320
472cc83c ACM	321	const struct option buildid_cache_options[] = {
	322	OPT_STRING('a', "add", &add_name_list_str,
	323	"file list", "file(s) to add"),
fc1b691d AH	324	OPT_STRING('k', "kcore", &kcore_filename,
fc1b691d AH	325	"file", "kcore file to add"),
472cc83c ACM	326	OPT_STRING('r', "remove", &remove_name_list_str, "file list",
472cc83c ACM	327	"file(s) to remove"),
8d8c8e4c MH	328	OPT_STRING('p', "purge", &purge_name_list_str, "path list",
8d8c8e4c MH	329	"path(s) to remove (remove old caches too)"),
fbb6976c ACM	330	OPT_STRING('M', "missing", &missing_filename, "file",
	331	"to find missing build ids in the cache"),
	332	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
eeb49845 NK	333	OPT_STRING('u', "update", &update_name_list_str, "file list",
eeb49845 NK	334	"file(s) to update"),
472cc83c ACM	335	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
	336	OPT_END()
	337	};
	338	const char * const buildid_cache_usage[] = {
	339	"perf buildid-cache [<options>]",
	340	NULL
	341	};
	342
	343	argc = parse_options(argc, argv, buildid_cache_options,
	344	buildid_cache_usage, 0);
	345
0497d0a8 MH	346	if (argc \|\| (!add_name_list_str && !kcore_filename &&
	347	!remove_name_list_str && !purge_name_list_str &&
	348	!missing_filename && !update_name_list_str))
	349	usage_with_options(buildid_cache_usage, buildid_cache_options);
	350
e3ed75bb NK	351	if (missing_filename) {
	352	file.path = missing_filename;
	353	file.force = force;
	354
	355	session = perf_session__new(&file, false, NULL);
	356	if (session == NULL)
	357	return -1;
	358	}
	359
0a7e6d1b	360	if (symbol__init(session ? &session->header.env : NULL) < 0)
e3ed75bb	361	goto out;
472cc83c ACM	362
472cc83c ACM	363	setup_pager();
ef12a141	364
ef12a141 ACM	365	if (add_name_list_str) {
	366	list = strlist__new(true, add_name_list_str);
	367	if (list) {
	368	strlist__for_each(pos, list)
e35f7362	369	if (build_id_cache__add_file(pos->s)) {
ef12a141 ACM	370	if (errno == EEXIST) {
	371	pr_debug("%s already in the cache\n",
	372	pos->s);
	373	continue;
	374	}
	375	pr_warning("Couldn't add %s: %s\n",
340481ad	376	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
ef12a141 ACM	377	}
	378
	379	strlist__delete(list);
	380	}
	381	}
	382
	383	if (remove_name_list_str) {
	384	list = strlist__new(true, remove_name_list_str);
	385	if (list) {
	386	strlist__for_each(pos, list)
e35f7362	387	if (build_id_cache__remove_file(pos->s)) {
ef12a141 ACM	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",
340481ad	394	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
ef12a141 ACM	395	}
	396
	397	strlist__delete(list);
	398	}
	399	}
	400
8d8c8e4c MH	401	if (purge_name_list_str) {
	402	list = strlist__new(true, purge_name_list_str);
	403	if (list) {
	404	strlist__for_each(pos, list)
	405	if (build_id_cache__purge_path(pos->s)) {
	406	if (errno == ENOENT) {
	407	pr_debug("%s wasn't in the cache\n",
	408	pos->s);
	409	continue;
	410	}
	411	pr_warning("Couldn't remove %s: %s\n",
	412	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
	413	}
	414
	415	strlist__delete(list);
	416	}
	417	}
	418
fbb6976c	419	if (missing_filename)
e3ed75bb	420	ret = build_id_cache__fprintf_missing(session, stdout);
fbb6976c	421
eeb49845 NK	422	if (update_name_list_str) {
	423	list = strlist__new(true, update_name_list_str);
	424	if (list) {
	425	strlist__for_each(pos, list)
e35f7362	426	if (build_id_cache__update_file(pos->s)) {
eeb49845 NK	427	if (errno == ENOENT) {
	428	pr_debug("%s wasn't in the cache\n",
	429	pos->s);
	430	continue;
	431	}
	432	pr_warning("Couldn't update %s: %s\n",
340481ad	433	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
eeb49845 NK	434	}
	435
	436	strlist__delete(list);
	437	}
	438	}
	439
e35f7362	440	if (kcore_filename && build_id_cache__add_kcore(kcore_filename, force))
fc1b691d AH	441	pr_warning("Couldn't add %s\n", kcore_filename);
fc1b691d AH	442
e3ed75bb NK	443	out:
	444	if (session)
	445	perf_session__delete(session);
	446
fbb6976c	447	return ret;
ef12a141	448	}