[mirror_ubuntu-bionic-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 <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, const char *debugdir,
				     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",
		  debugdir, 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",
		  debugdir, 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, const char *debugdir)
{
	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, debugdir, filename,
				    false, false);
	if (verbose)
		pr_info("Adding %s %s: %s\n", sbuild_id, filename,
			err ? "FAIL" : "Ok");
	return err;
}

static int build_id_cache__remove_file(const char *filename,
				       const char *debugdir)
{
	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, debugdir);
	if (verbose)
		pr_info("Removing %s %s: %s\n", sbuild_id, filename,
			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,
				       const char *debugdir)
{
	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, debugdir);
	if (!err) {
		err = build_id_cache__add_s(sbuild_id, debugdir, filename,
					    false, false);
	}
	if (verbose)
		pr_info("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 debugdir[PATH_MAX];
	char const *add_name_list_str = NULL,
		   *remove_name_list_str = NULL,
		   *missing_filename = NULL,
		   *update_name_list_str = NULL,
		   *kcore_filename;
	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('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 (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();

	snprintf(debugdir, sizeof(debugdir), "%s", buildid_dir);

	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, debugdir)) {
					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, debugdir)) {
					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, debugdir)) {
					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, debugdir, 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
5173fbb8 AH	128	static int build_id_cache__add_kcore(const char filename, const char debugdir,
5173fbb8 AH	129	bool force)
fc1b691d AH	130	{
	131	char dir[32], sbuildid[BUILD_ID_SIZE * 2 + 1];
	132	char from_dir[PATH_MAX], to_dir[PATH_MAX];
	133	char *p;
	134
	135	strlcpy(from_dir, filename, sizeof(from_dir));
	136
	137	p = strrchr(from_dir, '/');
	138	if (!p \|\| strcmp(p + 1, "kcore"))
	139	return -1;
	140	*p = '\0';
	141
	142	if (build_id_cache__kcore_buildid(from_dir, sbuildid))
	143	return -1;
	144
	145	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s",
	146	debugdir, sbuildid);
	147
5173fbb8 AH	148	if (!force &&
5173fbb8 AH	149	!build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
fc1b691d AH	150	pr_debug("same kcore found in %s\n", to_dir);
	151	return 0;
	152	}
	153
	154	if (build_id_cache__kcore_dir(dir, sizeof(dir)))
	155	return -1;
	156
	157	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s/%s",
	158	debugdir, sbuildid, dir);
	159
	160	if (mkdir_p(to_dir, 0755))
	161	return -1;
	162
	163	if (kcore_copy(from_dir, to_dir)) {
	164	/* Remove YYYYmmddHHMMSShh directory */
	165	if (!rmdir(to_dir)) {
	166	p = strrchr(to_dir, '/');
	167	if (p)
	168	*p = '\0';
	169	/* Try to remove buildid directory */
	170	if (!rmdir(to_dir)) {
	171	p = strrchr(to_dir, '/');
	172	if (p)
	173	*p = '\0';
	174	/* Try to remove [kernel.kcore] directory */
	175	rmdir(to_dir);
	176	}
	177	}
	178	return -1;
	179	}
	180
	181	pr_debug("kcore added to build-id cache directory %s\n", to_dir);
	182
	183	return 0;
	184	}
	185
ef12a141 ACM	186	static int build_id_cache__add_file(const char filename, const char debugdir)
	187	{
	188	char sbuild_id[BUILD_ID_SIZE * 2 + 1];
	189	u8 build_id[BUILD_ID_SIZE];
	190	int err;
	191
	192	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	193	pr_debug("Couldn't read a build-id in %s\n", filename);
	194	return -1;
	195	}
	196
	197	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
7dbf4dcf JO	198	err = build_id_cache__add_s(sbuild_id, debugdir, filename,
7dbf4dcf JO	199	false, false);
ef12a141 ACM	200	if (verbose)
	201	pr_info("Adding %s %s: %s\n", sbuild_id, filename,
	202	err ? "FAIL" : "Ok");
	203	return err;
	204	}
	205
472cc83c ACM	206	static int build_id_cache__remove_file(const char *filename,
472cc83c ACM	207	const char *debugdir)
ef12a141 ACM	208	{
	209	u8 build_id[BUILD_ID_SIZE];
	210	char sbuild_id[BUILD_ID_SIZE * 2 + 1];
	211
	212	int err;
	213
	214	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	215	pr_debug("Couldn't read a build-id in %s\n", filename);
	216	return -1;
	217	}
	218
	219	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
	220	err = build_id_cache__remove_s(sbuild_id, debugdir);
	221	if (verbose)
	222	pr_info("Removing %s %s: %s\n", sbuild_id, filename,
	223	err ? "FAIL" : "Ok");
	224
	225	return err;
	226	}
	227
fbb6976c ACM	228	static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused)
	229	{
	230	char filename[PATH_MAX];
	231	u8 build_id[BUILD_ID_SIZE];
	232
	233	if (dso__build_id_filename(dso, filename, sizeof(filename)) &&
	234	filename__read_build_id(filename, build_id,
	235	sizeof(build_id)) != sizeof(build_id)) {
	236	if (errno == ENOENT)
	237	return false;
	238
	239	pr_warning("Problems with %s file, consider removing it from the cache\n",
	240	filename);
	241	} else if (memcmp(dso->build_id, build_id, sizeof(dso->build_id))) {
	242	pr_warning("Problems with %s file, consider removing it from the cache\n",
	243	filename);
	244	}
	245
	246	return true;
	247	}
	248
e3ed75bb	249	static int build_id_cache__fprintf_missing(struct perf_session session, FILE fp)
fbb6976c	250	{
fbb6976c	251	perf_session__fprintf_dsos_buildid(session, fp, dso__missing_buildid_cache, 0);
fbb6976c ACM	252	return 0;
	253	}
	254
eeb49845 NK	255	static int build_id_cache__update_file(const char *filename,
	256	const char *debugdir)
	257	{
	258	u8 build_id[BUILD_ID_SIZE];
	259	char sbuild_id[BUILD_ID_SIZE * 2 + 1];
	260
	261	int err;
	262
	263	if (filename__read_build_id(filename, &build_id, sizeof(build_id)) < 0) {
	264	pr_debug("Couldn't read a build-id in %s\n", filename);
	265	return -1;
	266	}
	267
	268	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
	269	err = build_id_cache__remove_s(sbuild_id, debugdir);
	270	if (!err) {
	271	err = build_id_cache__add_s(sbuild_id, debugdir, filename,
	272	false, false);
	273	}
	274	if (verbose)
	275	pr_info("Updating %s %s: %s\n", sbuild_id, filename,
	276	err ? "FAIL" : "Ok");
	277
	278	return err;
	279	}
	280
472cc83c ACM	281	int cmd_buildid_cache(int argc, const char **argv,
472cc83c ACM	282	const char *prefix __maybe_unused)
ef12a141 ACM	283	{
	284	struct strlist *list;
	285	struct str_node *pos;
fbb6976c ACM	286	int ret = 0;
fbb6976c ACM	287	bool force = false;
ef12a141	288	char debugdir[PATH_MAX];
472cc83c	289	char const *add_name_list_str = NULL,
fbb6976c	290	*remove_name_list_str = NULL,
eeb49845	291	*missing_filename = NULL,
fc1b691d AH	292	*update_name_list_str = NULL,
fc1b691d AH	293	*kcore_filename;
340481ad	294	char sbuf[STRERR_BUFSIZE];
eeb49845	295
e3ed75bb NK	296	struct perf_data_file file = {
	297	.mode = PERF_DATA_MODE_READ,
	298	};
	299	struct perf_session *session = NULL;
	300
472cc83c ACM	301	const struct option buildid_cache_options[] = {
	302	OPT_STRING('a', "add", &add_name_list_str,
	303	"file list", "file(s) to add"),
fc1b691d AH	304	OPT_STRING('k', "kcore", &kcore_filename,
fc1b691d AH	305	"file", "kcore file to add"),
472cc83c ACM	306	OPT_STRING('r', "remove", &remove_name_list_str, "file list",
472cc83c ACM	307	"file(s) to remove"),
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
e3ed75bb NK	324	if (missing_filename) {
	325	file.path = missing_filename;
	326	file.force = force;
	327
	328	session = perf_session__new(&file, false, NULL);
	329	if (session == NULL)
	330	return -1;
	331	}
	332
0a7e6d1b	333	if (symbol__init(session ? &session->header.env : NULL) < 0)
e3ed75bb	334	goto out;
472cc83c ACM	335
472cc83c ACM	336	setup_pager();
ef12a141	337
45de34bb	338	snprintf(debugdir, sizeof(debugdir), "%s", buildid_dir);
ef12a141 ACM	339
	340	if (add_name_list_str) {
	341	list = strlist__new(true, add_name_list_str);
	342	if (list) {
	343	strlist__for_each(pos, list)
	344	if (build_id_cache__add_file(pos->s, debugdir)) {
	345	if (errno == EEXIST) {
	346	pr_debug("%s already in the cache\n",
	347	pos->s);
	348	continue;
	349	}
	350	pr_warning("Couldn't add %s: %s\n",
340481ad	351	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
ef12a141 ACM	352	}
	353
	354	strlist__delete(list);
	355	}
	356	}
	357
	358	if (remove_name_list_str) {
	359	list = strlist__new(true, remove_name_list_str);
	360	if (list) {
	361	strlist__for_each(pos, list)
	362	if (build_id_cache__remove_file(pos->s, debugdir)) {
	363	if (errno == ENOENT) {
	364	pr_debug("%s wasn't in the cache\n",
	365	pos->s);
	366	continue;
	367	}
	368	pr_warning("Couldn't remove %s: %s\n",
340481ad	369	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
ef12a141 ACM	370	}
	371
	372	strlist__delete(list);
	373	}
	374	}
	375
fbb6976c	376	if (missing_filename)
e3ed75bb	377	ret = build_id_cache__fprintf_missing(session, stdout);
fbb6976c	378
eeb49845 NK	379	if (update_name_list_str) {
	380	list = strlist__new(true, update_name_list_str);
	381	if (list) {
	382	strlist__for_each(pos, list)
	383	if (build_id_cache__update_file(pos->s, debugdir)) {
	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 update %s: %s\n",
340481ad	390	pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
eeb49845 NK	391	}
	392
	393	strlist__delete(list);
	394	}
	395	}
	396
fc1b691d	397	if (kcore_filename &&
5173fbb8	398	build_id_cache__add_kcore(kcore_filename, debugdir, force))
fc1b691d AH	399	pr_warning("Couldn't add %s\n", kcore_filename);
fc1b691d AH	400
e3ed75bb NK	401	out:
	402	if (session)
	403	perf_session__delete(session);
	404
fbb6976c	405	return ret;
ef12a141	406	}