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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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15fe03621d
When the guestmount option is used, a guest machine's file system mount point is recorded in machine->root_dir. perf already iterates guest machines when adding files to the build ID cache, but does not take machine->root_dir into account. Use machine->root_dir to find files for guest build IDs, and add them to the build ID cache using the "proper" name i.e. relative to the guest root directory not the host root directory. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: kvm@vger.kernel.org Link: https://lore.kernel.org/r/20220711093218.10967-9-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
88 lines
3.2 KiB
C
88 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef PERF_BUILD_ID_H_
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#define PERF_BUILD_ID_H_ 1
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#define BUILD_ID_SIZE 20 /* SHA-1 length in bytes */
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#define BUILD_ID_MIN_SIZE 16 /* MD5/UUID/GUID length in bytes */
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#define SBUILD_ID_SIZE (BUILD_ID_SIZE * 2 + 1)
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#define SBUILD_ID_MIN_SIZE (BUILD_ID_MIN_SIZE * 2 + 1)
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#include "machine.h"
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#include "tool.h"
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#include <linux/types.h>
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struct build_id {
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u8 data[BUILD_ID_SIZE];
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size_t size;
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};
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struct nsinfo;
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extern struct perf_tool build_id__mark_dso_hit_ops;
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struct dso;
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struct feat_fd;
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void build_id__init(struct build_id *bid, const u8 *data, size_t size);
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int build_id__sprintf(const struct build_id *build_id, char *bf);
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bool build_id__is_defined(const struct build_id *bid);
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int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id);
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int filename__sprintf_build_id(const char *pathname, char *sbuild_id);
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char *build_id_cache__kallsyms_path(const char *sbuild_id, char *bf,
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size_t size);
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char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size,
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bool is_debug);
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char *__dso__build_id_filename(const struct dso *dso, char *bf, size_t size,
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bool is_debug, bool is_kallsyms);
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int build_id__mark_dso_hit(struct perf_tool *tool, union perf_event *event,
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struct perf_sample *sample, struct evsel *evsel,
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struct machine *machine);
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int dsos__hit_all(struct perf_session *session);
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int perf_event__inject_buildid(struct perf_tool *tool, union perf_event *event,
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struct perf_sample *sample, struct evsel *evsel,
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struct machine *machine);
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bool perf_session__read_build_ids(struct perf_session *session, bool with_hits);
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int perf_session__write_buildid_table(struct perf_session *session,
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struct feat_fd *fd);
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int perf_session__cache_build_ids(struct perf_session *session);
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int __perf_session__cache_build_ids(struct perf_session *session,
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machine__dso_t fn, void *priv);
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char *build_id_cache__origname(const char *sbuild_id);
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char *build_id_cache__linkname(const char *sbuild_id, char *bf, size_t size);
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char *build_id_cache__cachedir(const char *sbuild_id, const char *name,
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struct nsinfo *nsi, bool is_kallsyms,
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bool is_vdso);
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struct strlist;
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struct strlist *build_id_cache__list_all(bool validonly);
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char *build_id_cache__complement(const char *incomplete_sbuild_id);
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int build_id_cache__list_build_ids(const char *pathname, struct nsinfo *nsi,
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struct strlist **result);
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bool build_id_cache__cached(const char *sbuild_id);
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int build_id_cache__add(const char *sbuild_id, const char *name, const char *realname,
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struct nsinfo *nsi, bool is_kallsyms, bool is_vdso,
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const char *proper_name, const char *root_dir);
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int __build_id_cache__add_s(const char *sbuild_id,
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const char *name, struct nsinfo *nsi,
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bool is_kallsyms, bool is_vdso,
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const char *proper_name, const char *root_dir);
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static inline int build_id_cache__add_s(const char *sbuild_id,
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const char *name, struct nsinfo *nsi,
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bool is_kallsyms, bool is_vdso)
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{
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return __build_id_cache__add_s(sbuild_id, name, nsi, is_kallsyms, is_vdso, NULL, NULL);
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}
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int build_id_cache__remove_s(const char *sbuild_id);
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extern char buildid_dir[];
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void set_buildid_dir(const char *dir);
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void disable_buildid_cache(void);
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#endif
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