mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-04 00:06:36 +00:00
1902efe7f6
This new COMM infrastructure provides two features: 1) It keeps track of all comms lifecycle for a given thread. This way we can associate a timeframe to any thread COMM, as long as PERF_SAMPLE_TIME samples are joined to COMM and fork events. As a result we should have more precise COMM sorted hists with seperated entries for pre and post exec time after a fork. 2) It also makes sure that a given COMM string is not duplicated but rather shared among the threads that refer to it. This way the threads COMM can be compared against pointer values from the sort infrastructure. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-hwjf70b2wve9m2kosxiq8bb3@git.kernel.org [ Rename some accessor functions ] Signed-off-by: Namhyung Kim <namhyung@kernel.org> [ Use __ as separator for class__method for private comm_str methods ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
#ifndef __PERF_THREAD_H
|
|
#define __PERF_THREAD_H
|
|
|
|
#include <linux/rbtree.h>
|
|
#include <linux/list.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include "symbol.h"
|
|
|
|
struct thread {
|
|
union {
|
|
struct rb_node rb_node;
|
|
struct list_head node;
|
|
};
|
|
struct map_groups mg;
|
|
pid_t pid_; /* Not all tools update this */
|
|
pid_t tid;
|
|
pid_t ppid;
|
|
char shortname[3];
|
|
bool comm_set;
|
|
bool dead; /* if set thread has exited */
|
|
struct list_head comm_list;
|
|
int comm_len;
|
|
|
|
void *priv;
|
|
};
|
|
|
|
struct machine;
|
|
|
|
struct thread *thread__new(pid_t pid, pid_t tid);
|
|
void thread__delete(struct thread *self);
|
|
static inline void thread__exited(struct thread *thread)
|
|
{
|
|
thread->dead = true;
|
|
}
|
|
|
|
int thread__set_comm(struct thread *thread, const char *comm, u64 timestamp);
|
|
int thread__comm_len(struct thread *self);
|
|
const char *thread__comm_str(const struct thread *thread);
|
|
void thread__insert_map(struct thread *self, struct map *map);
|
|
int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);
|
|
size_t thread__fprintf(struct thread *thread, FILE *fp);
|
|
|
|
static inline struct map *thread__find_map(struct thread *self,
|
|
enum map_type type, u64 addr)
|
|
{
|
|
return self ? map_groups__find(&self->mg, type, addr) : NULL;
|
|
}
|
|
|
|
void thread__find_addr_map(struct thread *thread, struct machine *machine,
|
|
u8 cpumode, enum map_type type, u64 addr,
|
|
struct addr_location *al);
|
|
|
|
void thread__find_addr_location(struct thread *thread, struct machine *machine,
|
|
u8 cpumode, enum map_type type, u64 addr,
|
|
struct addr_location *al);
|
|
|
|
static inline void *thread__priv(struct thread *thread)
|
|
{
|
|
return thread->priv;
|
|
}
|
|
|
|
static inline void thread__set_priv(struct thread *thread, void *p)
|
|
{
|
|
thread->priv = p;
|
|
}
|
|
#endif /* __PERF_THREAD_H */
|