/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_MAP_H
#define __PERF_MAP_H
#include <linux/refcount.h>
#include <linux/compiler.h>
#include <linux/list.h>
#include <linux/rbtree.h>
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <linux/types.h>
#include <internal/rc_check.h>
struct dso;
struct maps;
struct machine;
enum mapping_type {
/* map__map_ip/map__unmap_ip are given as offsets in the DSO. */
MAPPING_TYPE__DSO,
/* map__map_ip/map__unmap_ip are just the given ip value. */
MAPPING_TYPE__IDENTITY,
};
DECLARE_RC_STRUCT(map) {
u64 start;
u64 end;
u64 pgoff;
u64 reloc;
struct dso *dso;
refcount_t refcnt;
u32 prot;
u32 flags;
enum mapping_type mapping_type:8;
bool erange_warned;
bool priv;
};
struct kmap;
struct kmap *__map__kmap(struct map *map);
struct kmap *map__kmap(struct map *map);
struct maps *map__kmaps(struct map *map);
static inline struct dso *map__dso(const struct map *map)
{
return RC_CHK_ACCESS(map)->dso;
}
static inline u64 map__start(const struct map *map)
{
return RC_CHK_ACCESS(map)->start;
}
static inline u64 map__end(const struct map *map)
{
return RC_CHK_ACCESS(map)->end;
}
static inline u64 map__pgoff(const struct map *map)
{
return RC_CHK_ACCESS(map)->pgoff;
}
static inline u64 map__reloc(const struct map *map)
{
return RC_CHK_ACCESS(map)->reloc;
}
static inline u32 map__flags(const struct map *map)
{
return RC_CHK_ACCESS(map)->flags;
}
static inline u32 map__prot(const struct map *map)
{
return RC_CHK_ACCESS(map)->prot;
}
static inline bool map__priv(const struct map *map)
{
return RC_CHK_ACCESS(map)->priv;
}
static inline refcount_t *map__refcnt(struct map *map)
{
return &RC_CHK_ACCESS(map)->refcnt;
}
static inline bool map__erange_warned(struct map *map)
{
return RC_CHK_ACCESS(map)->erange_warned;
}
static inline size_t map__size(const struct map *map)
{
return map__end(map) - map__start(map);
}
/* ip -> dso rip */
static inline u64 map__dso_map_ip(const struct map *map, u64 ip)
{
return ip - map__start(map) + map__pgoff(map);
}
/* dso rip -> ip */
static inline u64 map__dso_unmap_ip(const struct map *map, u64 rip)
{
return rip + map__start(map) - map__pgoff(map);
}
static inline u64 map__map_ip(const struct map *map, u64 ip_or_rip)
{
if ((RC_CHK_ACCESS(map)->mapping_type) == MAPPING_TYPE__DSO)
return map__dso_map_ip(map, ip_or_rip);
else
return ip_or_rip;
}
static inline u64 map__unmap_ip(const struct map *map, u64 ip_or_rip)
{
if ((RC_CHK_ACCESS(map)->mapping_type) == MAPPING_TYPE__DSO)
return map__dso_unmap_ip(map, ip_or_rip);
else
return ip_or_rip;
}
/* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
u64 map__rip_2objdump(struct map *map, u64 rip);
/* objdump address -> memory address */
u64 map__objdump_2mem(struct map *map, u64 ip);
/* objdump address -> rip */
u64 map__objdump_2rip(struct map *map, u64 ip);
struct symbol;
struct thread;
/* map__for_each_symbol - iterate over the symbols in the given map
*
* @map: the 'struct map *' in which symbols are iterated
* @pos: the 'struct symbol *' to use as a loop cursor
* @n: the 'struct rb_node *' to use as a temporary storage
* Note: caller must ensure map->dso is not NULL (map is loaded).
*/
#define map__for_each_symbol(map, pos, n) \
dso__for_each_symbol(map__dso(map), pos, n)
/* map__for_each_symbol_with_name - iterate over the symbols in the given map
* that have the given name
*
* @map: the 'struct map *' in which symbols are iterated
* @sym_name: the symbol name
* @pos: the 'struct symbol *' to use as a loop cursor
* @idx: the cursor index in the symbol names array
*/
#define __map__for_each_symbol_by_name(map, sym_name, pos, idx) \
for (pos = map__find_symbol_by_name_idx(map, sym_name, &idx); \
pos && \
!symbol__match_symbol_name(pos->name, sym_name, \
SYMBOL_TAG_INCLUDE__DEFAULT_ONLY); \
pos = dso__next_symbol_by_name(map__dso(map), &idx))
#define map__for_each_symbol_by_name(map, sym_name, pos, idx) \
__map__for_each_symbol_by_name(map, sym_name, (pos), idx)
void map__init(struct map *map,
u64 start, u64 end, u64 pgoff, struct dso *dso);
struct dso_id;
struct build_id;
struct map *map__new(struct machine *machine, u64 start, u64 len,
u64 pgoff, struct dso_id *id, u32 prot, u32 flags,
struct build_id *bid, char *filename, struct thread *thread);
struct map *map__new2(u64 start, struct dso *dso);
void map__delete(struct map *map);
struct map *map__clone(struct map *map);
static inline struct map *map__get(struct map *map)
{
struct map *result;
if (RC_CHK_GET(result, map))
refcount_inc(map__refcnt(map));
return result;
}
void map__put(struct map *map);
static inline void __map__zput(struct map **map)
{
map__put(*map);
*map = NULL;
}
#define map__zput(map) __map__zput(&map)
size_t map__fprintf(struct map *map, FILE *fp);
size_t map__fprintf_dsoname(struct map *map, FILE *fp);
size_t map__fprintf_dsoname_dsoff(struct map *map, bool print_off, u64 addr, FILE *fp);
char *map__srcline(struct map *map, u64 addr, struct symbol *sym);
int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix,
FILE *fp);
int map__load(struct map *map);
struct symbol *map__find_symbol(struct map *map, u64 addr);
struct symbol *map__find_symbol_by_name(struct map *map, const char *name);
struct symbol *map__find_symbol_by_name_idx(struct map *map, const char *name, size_t *idx);
void map__fixup_start(struct map *map);
void map__fixup_end(struct map *map);
int map__set_kallsyms_ref_reloc_sym(struct map *map, const char *symbol_name,
u64 addr);
bool __map__is_kernel(const struct map *map);
bool __map__is_extra_kernel_map(const struct map *map);
bool __map__is_bpf_prog(const struct map *map);
bool __map__is_bpf_image(const struct map *map);
bool __map__is_ool(const struct map *map);
static inline bool __map__is_kmodule(const struct map *map)
{
return !__map__is_kernel(map) && !__map__is_extra_kernel_map(map) &&
!__map__is_bpf_prog(map) && !__map__is_ool(map) &&
!__map__is_bpf_image(map);
}
bool map__has_symbols(const struct map *map);
bool map__contains_symbol(const struct map *map, const struct symbol *sym);
#define ENTRY_TRAMPOLINE_NAME "__entry_SYSCALL_64_trampoline"
static inline bool is_entry_trampoline(const char *name)
{
return !strcmp(name, ENTRY_TRAMPOLINE_NAME);
}
static inline bool is_bpf_image(const char *name)
{
return strncmp(name, "bpf_trampoline_", sizeof("bpf_trampoline_") - 1) == 0 ||
strncmp(name, "bpf_dispatcher_", sizeof("bpf_dispatcher_") - 1) == 0;
}
static inline int is_anon_memory(const char *filename)
{
return !strcmp(filename, "//anon") ||
!strncmp(filename, "/dev/zero", sizeof("/dev/zero") - 1) ||
!strncmp(filename, "/anon_hugepage", sizeof("/anon_hugepage") - 1);
}
static inline int is_no_dso_memory(const char *filename)
{
return !strncmp(filename, "[stack", 6) ||
!strncmp(filename, "/SYSV", 5) ||
!strcmp(filename, "[heap]");
}
static inline void map__set_start(struct map *map, u64 start)
{
RC_CHK_ACCESS(map)->start = start;
}
static inline void map__set_end(struct map *map, u64 end)
{
RC_CHK_ACCESS(map)->end = end;
}
static inline void map__set_pgoff(struct map *map, u64 pgoff)
{
RC_CHK_ACCESS(map)->pgoff = pgoff;
}
static inline void map__add_pgoff(struct map *map, u64 inc)
{
RC_CHK_ACCESS(map)->pgoff += inc;
}
static inline void map__set_reloc(struct map *map, u64 reloc)
{
RC_CHK_ACCESS(map)->reloc = reloc;
}
static inline void map__set_priv(struct map *map, int priv)
{
RC_CHK_ACCESS(map)->priv = priv;
}
static inline void map__set_erange_warned(struct map *map, bool erange_warned)
{
RC_CHK_ACCESS(map)->erange_warned = erange_warned;
}
static inline void map__set_dso(struct map *map, struct dso *dso)
{
RC_CHK_ACCESS(map)->dso = dso;
}
static inline void map__set_mapping_type(struct map *map, enum mapping_type type)
{
RC_CHK_ACCESS(map)->mapping_type = type;
}
static inline enum mapping_type map__mapping_type(struct map *map)
{
return RC_CHK_ACCESS(map)->mapping_type;
}
#endif /* __PERF_MAP_H */
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