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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/perf/util/probe-file.h | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/perf/util/probe-file.h')
-rw-r--r-- | tools/perf/util/probe-file.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/tools/perf/util/probe-file.h b/tools/perf/util/probe-file.h new file mode 100644 index 000000000..0dba88c0f --- /dev/null +++ b/tools/perf/util/probe-file.h @@ -0,0 +1,83 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PROBE_FILE_H +#define __PROBE_FILE_H + +#include "probe-event.h" + +struct strlist; +struct strfilter; + +/* Cache of probe definitions */ +struct probe_cache_entry { + struct list_head node; + bool sdt; + struct perf_probe_event pev; + char *spev; + struct strlist *tevlist; +}; + +struct probe_cache { + int fd; + struct list_head entries; +}; + +enum probe_type { + PROBE_TYPE_U = 0, + PROBE_TYPE_S, + PROBE_TYPE_X, + PROBE_TYPE_STRING, + PROBE_TYPE_BITFIELD, + PROBE_TYPE_END, +}; + +#define PF_FL_UPROBE 1 +#define PF_FL_RW 2 +#define for_each_probe_cache_entry(entry, pcache) \ + list_for_each_entry(entry, &pcache->entries, node) + +/* probe-file.c depends on libelf */ +#ifdef HAVE_LIBELF_SUPPORT +int open_trace_file(const char *trace_file, bool readwrite); +int probe_file__open(int flag); +int probe_file__open_both(int *kfd, int *ufd, int flag); +struct strlist *probe_file__get_namelist(int fd); +struct strlist *probe_file__get_rawlist(int fd); +int probe_file__add_event(int fd, struct probe_trace_event *tev); + +int probe_file__del_events(int fd, struct strfilter *filter); +int probe_file__get_events(int fd, struct strfilter *filter, + struct strlist *plist); +int probe_file__del_strlist(int fd, struct strlist *namelist); + +int probe_cache_entry__get_event(struct probe_cache_entry *entry, + struct probe_trace_event **tevs); + +struct probe_cache *probe_cache__new(const char *target, struct nsinfo *nsi); +int probe_cache__add_entry(struct probe_cache *pcache, + struct perf_probe_event *pev, + struct probe_trace_event *tevs, int ntevs); +int probe_cache__scan_sdt(struct probe_cache *pcache, const char *pathname); +int probe_cache__commit(struct probe_cache *pcache); +void probe_cache__purge(struct probe_cache *pcache); +void probe_cache__delete(struct probe_cache *pcache); +int probe_cache__filter_purge(struct probe_cache *pcache, + struct strfilter *filter); +struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache, + struct perf_probe_event *pev); +struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache, + const char *group, const char *event); +int probe_cache__show_all_caches(struct strfilter *filter); +bool probe_type_is_available(enum probe_type type); +bool kretprobe_offset_is_supported(void); +bool uprobe_ref_ctr_is_supported(void); +bool user_access_is_supported(void); +bool multiprobe_event_is_supported(void); +bool immediate_value_is_supported(void); +#else /* ! HAVE_LIBELF_SUPPORT */ +static inline struct probe_cache *probe_cache__new(const char *tgt __maybe_unused, struct nsinfo *nsi __maybe_unused) +{ + return NULL; +} +#define probe_cache__delete(pcache) do {} while (0) +#endif +#endif |