linux/tools/perf/util/build-id.h
Nicholas Fraser 3027ce36cc perf buildid-cache: Don't skip 16-byte build-ids
lsdir_bid_tail_filter() ignored any build-id that wasn't exactly 20
bytes. This worked only for SHA-1 build-ids. The build-id for a PE file
is always a 16-byte GUID and ELF files can also have MD5 or UUID
build-ids.

This fix changes the filter to allow build-ids between 16 and 20 bytes.

Signed-off-by: Nicholas Fraser <nfraser@codeweavers.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Huw Davies <huw@codeweavers.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Remi Bernon <rbernon@codeweavers.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Tommi Rantala <tommi.t.rantala@nokia.com>
Cc: Ulrich Czekalla <uczekalla@codeweavers.com>
Link: http://lore.kernel.org/lkml/597788e4-661d-633f-857c-3de700115d02@codeweavers.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-18 16:41:40 -03:00

81 lines
2.9 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef PERF_BUILD_ID_H_
#define PERF_BUILD_ID_H_ 1
#define BUILD_ID_SIZE 20 /* SHA-1 length in bytes */
#define BUILD_ID_MIN_SIZE 16 /* MD5/UUID/GUID length in bytes */
#define SBUILD_ID_SIZE (BUILD_ID_SIZE * 2 + 1)
#define SBUILD_ID_MIN_SIZE (BUILD_ID_MIN_SIZE * 2 + 1)
#include "machine.h"
#include "tool.h"
#include <linux/types.h>
struct build_id {
u8 data[BUILD_ID_SIZE];
size_t size;
};
struct nsinfo;
extern struct perf_tool build_id__mark_dso_hit_ops;
struct dso;
struct feat_fd;
void build_id__init(struct build_id *bid, const u8 *data, size_t size);
int build_id__sprintf(const struct build_id *build_id, char *bf);
bool build_id__is_defined(const struct build_id *bid);
int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id);
int filename__sprintf_build_id(const char *pathname, char *sbuild_id);
char *build_id_cache__kallsyms_path(const char *sbuild_id, char *bf,
size_t size);
char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size,
bool is_debug);
char *__dso__build_id_filename(const struct dso *dso, char *bf, size_t size,
bool is_debug, bool is_kallsyms);
int build_id__mark_dso_hit(struct perf_tool *tool, union perf_event *event,
struct perf_sample *sample, struct evsel *evsel,
struct machine *machine);
int dsos__hit_all(struct perf_session *session);
int perf_event__inject_buildid(struct perf_tool *tool, union perf_event *event,
struct perf_sample *sample, struct evsel *evsel,
struct machine *machine);
bool perf_session__read_build_ids(struct perf_session *session, bool with_hits);
int perf_session__write_buildid_table(struct perf_session *session,
struct feat_fd *fd);
int perf_session__cache_build_ids(struct perf_session *session);
int __perf_session__cache_build_ids(struct perf_session *session,
machine__dso_t fn, void *priv);
char *build_id_cache__origname(const char *sbuild_id);
char *build_id_cache__linkname(const char *sbuild_id, char *bf, size_t size);
char *build_id_cache__cachedir(const char *sbuild_id, const char *name,
struct nsinfo *nsi, bool is_kallsyms,
bool is_vdso);
struct strlist;
struct strlist *build_id_cache__list_all(bool validonly);
char *build_id_cache__complement(const char *incomplete_sbuild_id);
int build_id_cache__list_build_ids(const char *pathname, struct nsinfo *nsi,
struct strlist **result);
bool build_id_cache__cached(const char *sbuild_id);
int build_id_cache__add(const char *sbuild_id, const char *name, const char *realname,
struct nsinfo *nsi, bool is_kallsyms, bool is_vdso);
int build_id_cache__add_s(const char *sbuild_id,
const char *name, struct nsinfo *nsi,
bool is_kallsyms, bool is_vdso);
int build_id_cache__remove_s(const char *sbuild_id);
extern char buildid_dir[];
void set_buildid_dir(const char *dir);
void disable_buildid_cache(void);
#endif