diff options
Diffstat (limited to 'tools/perf/util/map.h')
-rw-r--r-- | tools/perf/util/map.h | 211 |
1 files changed, 177 insertions, 34 deletions
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h index 067036e8970c..49756716cb13 100644 --- a/tools/perf/util/map.h +++ b/tools/perf/util/map.h @@ -10,32 +10,31 @@ #include <string.h> #include <stdbool.h> #include <linux/types.h> +#include <internal/rc_check.h> struct dso; struct maps; struct machine; -struct map { - union { - struct rb_node rb_node; - struct list_head node; - }; +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; - bool erange_warned:1; - bool priv:1; - u32 prot; u64 pgoff; u64 reloc; - - /* ip -> dso rip */ - u64 (*map_ip)(struct map *, u64); - /* dso rip -> ip */ - u64 (*unmap_ip)(struct map *, u64); - struct dso *dso; refcount_t refcnt; + u32 prot; u32 flags; + enum mapping_type mapping_type:8; + bool erange_warned; + bool priv; }; struct kmap; @@ -44,24 +43,87 @@ struct kmap *__map__kmap(struct map *map); struct kmap *map__kmap(struct map *map); struct maps *map__kmaps(struct map *map); -static inline u64 map__map_ip(struct map *map, u64 ip) +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 ip - map->start + map->pgoff; + return RC_CHK_ACCESS(map)->priv; } -static inline u64 map__unmap_ip(struct map *map, u64 ip) +static inline refcount_t *map__refcnt(struct map *map) { - return ip + map->start - map->pgoff; + return &RC_CHK_ACCESS(map)->refcnt; } -static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip) +static inline bool map__erange_warned(struct map *map) { - return ip; + return RC_CHK_ACCESS(map)->erange_warned; } static inline size_t map__size(const struct map *map) { - return map->end - map->start; + 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=` */ @@ -75,48 +137,53 @@ struct thread; /* map__for_each_symbol - iterate over the symbols in the given map * - * @map: the 'struct map *' in which symbols itereated + * @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, 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 itereated + * @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) \ - for (pos = map__find_symbol_by_name(map, sym_name); \ +#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 = symbol__next_by_name(pos)) + pos = dso__next_symbol_by_name(map__dso(map), &idx)) -#define map__for_each_symbol_by_name(map, sym_name, pos) \ - __map__for_each_symbol_by_name(map, sym_name, (pos)) +#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, - char *filename, struct thread *thread); + 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) { - if (map) - refcount_inc(&map->refcnt); - return map; + struct map *result; + + if (RC_CHK_GET(result, map)) + refcount_inc(map__refcnt(map)); + + return result; } void map__put(struct map *map); @@ -131,6 +198,7 @@ static inline void __map__zput(struct map **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); @@ -138,6 +206,7 @@ int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix, 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); @@ -147,15 +216,20 @@ int map__set_kallsyms_ref_reloc_sym(struct map *map, const char *symbol_name, 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_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) @@ -163,4 +237,73 @@ 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 */ |