mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-26 14:14:01 +08:00
f045b8c4b3
Teach buildid-cache how to add, remove, and update binary objects from other mount namespaces. Allow probe events tracing binaries in different namespaces to add their objects to the probe and build-id caches too. As a handy side effect, this also lets us access SDT probes in binaries from alternate mount namespaces. Signed-off-by: Krister Johansen <kjlx@templeofstupid.com> Tested-by: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1499305693-1599-5-git-send-email-kjlx@templeofstupid.com [ Add util/namespaces.c to tools/perf/util/python-ext-sources, to fix the python binding 'perf test' ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
#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);
|
|
#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
|