linux/tools/perf/util/map.h
Akihiro Nagai 547a92e0ae perf script: Unify the expressions indicating "unknown"
The perf script command uses various expressions to indicate "unknown".

It is unfriendly for user scripts to parse it. So, this patch unifies
the expressions to "[unknown]".

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20120130044257.2384.62905.stgit@linux3
Signed-off-by: Akihiro Nagai <akihiro.nagai.hw@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-01-30 17:57:57 -02:00

258 lines
7.2 KiB
C

#ifndef __PERF_MAP_H
#define __PERF_MAP_H
#include <linux/compiler.h>
#include <linux/list.h>
#include <linux/rbtree.h>
#include <stdio.h>
#include <stdbool.h>
#include "types.h"
enum map_type {
MAP__FUNCTION = 0,
MAP__VARIABLE,
};
#define MAP__NR_TYPES (MAP__VARIABLE + 1)
extern const char *map_type__name[MAP__NR_TYPES];
struct dso;
struct ip_callchain;
struct ref_reloc_sym;
struct map_groups;
struct machine;
struct perf_evsel;
struct map {
union {
struct rb_node rb_node;
struct list_head node;
};
u64 start;
u64 end;
u8 /* enum map_type */ type;
bool referenced;
u32 priv;
u64 pgoff;
/* ip -> dso rip */
u64 (*map_ip)(struct map *, u64);
/* dso rip -> ip */
u64 (*unmap_ip)(struct map *, u64);
struct dso *dso;
struct map_groups *groups;
};
struct kmap {
struct ref_reloc_sym *ref_reloc_sym;
struct map_groups *kmaps;
};
struct map_groups {
struct rb_root maps[MAP__NR_TYPES];
struct list_head removed_maps[MAP__NR_TYPES];
struct machine *machine;
};
/* Native host kernel uses -1 as pid index in machine */
#define HOST_KERNEL_ID (-1)
#define DEFAULT_GUEST_KERNEL_ID (0)
struct machine {
struct rb_node rb_node;
pid_t pid;
u16 id_hdr_size;
char *root_dir;
struct rb_root threads;
struct list_head dead_threads;
struct thread *last_match;
struct list_head user_dsos;
struct list_head kernel_dsos;
struct map_groups kmaps;
struct map *vmlinux_maps[MAP__NR_TYPES];
};
static inline
struct map *machine__kernel_map(struct machine *self, enum map_type type)
{
return self->vmlinux_maps[type];
}
static inline struct kmap *map__kmap(struct map *self)
{
return (struct kmap *)(self + 1);
}
static inline u64 map__map_ip(struct map *map, u64 ip)
{
return ip - map->start + map->pgoff;
}
static inline u64 map__unmap_ip(struct map *map, u64 ip)
{
return ip + map->start - map->pgoff;
}
static inline u64 identity__map_ip(struct map *map __used, u64 ip)
{
return ip;
}
/* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
u64 map__rip_2objdump(struct map *map, u64 rip);
u64 map__objdump_2ip(struct map *map, u64 addr);
struct symbol;
typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
void map__init(struct map *self, enum map_type type,
u64 start, u64 end, u64 pgoff, struct dso *dso);
struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
u64 pgoff, u32 pid, char *filename,
enum map_type type);
void map__delete(struct map *self);
struct map *map__clone(struct map *self);
int map__overlap(struct map *l, struct map *r);
size_t map__fprintf(struct map *self, FILE *fp);
size_t map__fprintf_dsoname(struct map *map, FILE *fp);
int map__load(struct map *self, symbol_filter_t filter);
struct symbol *map__find_symbol(struct map *self,
u64 addr, symbol_filter_t filter);
struct symbol *map__find_symbol_by_name(struct map *self, const char *name,
symbol_filter_t filter);
void map__fixup_start(struct map *self);
void map__fixup_end(struct map *self);
void map__reloc_vmlinux(struct map *self);
size_t __map_groups__fprintf_maps(struct map_groups *mg,
enum map_type type, int verbose, FILE *fp);
void maps__insert(struct rb_root *maps, struct map *map);
void maps__remove(struct rb_root *maps, struct map *map);
struct map *maps__find(struct rb_root *maps, u64 addr);
void map_groups__init(struct map_groups *mg);
void map_groups__exit(struct map_groups *mg);
int map_groups__clone(struct map_groups *mg,
struct map_groups *parent, enum map_type type);
size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp);
size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp);
typedef void (*machine__process_t)(struct machine *self, void *data);
void machines__process(struct rb_root *self, machine__process_t process, void *data);
struct machine *machines__add(struct rb_root *self, pid_t pid,
const char *root_dir);
struct machine *machines__find_host(struct rb_root *self);
struct machine *machines__find(struct rb_root *self, pid_t pid);
struct machine *machines__findnew(struct rb_root *self, pid_t pid);
char *machine__mmap_name(struct machine *self, char *bf, size_t size);
int machine__init(struct machine *self, const char *root_dir, pid_t pid);
void machine__exit(struct machine *self);
void machine__delete(struct machine *self);
int machine__resolve_callchain(struct machine *machine,
struct perf_evsel *evsel, struct thread *thread,
struct ip_callchain *chain,
struct symbol **parent);
int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name,
u64 addr);
/*
* Default guest kernel is defined by parameter --guestkallsyms
* and --guestmodules
*/
static inline bool machine__is_default_guest(struct machine *self)
{
return self ? self->pid == DEFAULT_GUEST_KERNEL_ID : false;
}
static inline bool machine__is_host(struct machine *self)
{
return self ? self->pid == HOST_KERNEL_ID : false;
}
static inline void map_groups__insert(struct map_groups *mg, struct map *map)
{
maps__insert(&mg->maps[map->type], map);
map->groups = mg;
}
static inline void map_groups__remove(struct map_groups *mg, struct map *map)
{
maps__remove(&mg->maps[map->type], map);
}
static inline struct map *map_groups__find(struct map_groups *mg,
enum map_type type, u64 addr)
{
return maps__find(&mg->maps[type], addr);
}
struct symbol *map_groups__find_symbol(struct map_groups *mg,
enum map_type type, u64 addr,
struct map **mapp,
symbol_filter_t filter);
struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg,
enum map_type type,
const char *name,
struct map **mapp,
symbol_filter_t filter);
struct thread *machine__findnew_thread(struct machine *machine, pid_t pid);
void machine__remove_thread(struct machine *machine, struct thread *th);
size_t machine__fprintf(struct machine *machine, FILE *fp);
static inline
struct symbol *machine__find_kernel_symbol(struct machine *self,
enum map_type type, u64 addr,
struct map **mapp,
symbol_filter_t filter)
{
return map_groups__find_symbol(&self->kmaps, type, addr, mapp, filter);
}
static inline
struct symbol *machine__find_kernel_function(struct machine *self, u64 addr,
struct map **mapp,
symbol_filter_t filter)
{
return machine__find_kernel_symbol(self, MAP__FUNCTION, addr, mapp, filter);
}
static inline
struct symbol *map_groups__find_function_by_name(struct map_groups *mg,
const char *name, struct map **mapp,
symbol_filter_t filter)
{
return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter);
}
static inline
struct symbol *machine__find_kernel_function_by_name(struct machine *self,
const char *name,
struct map **mapp,
symbol_filter_t filter)
{
return map_groups__find_function_by_name(&self->kmaps, name, mapp,
filter);
}
int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
int verbose, FILE *fp);
struct map *map_groups__find_by_name(struct map_groups *mg,
enum map_type type, const char *name);
struct map *machine__new_module(struct machine *self, u64 start, const char *filename);
void map_groups__flush(struct map_groups *mg);
#endif /* __PERF_MAP_H */