diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/perf/util/map.h | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tools/perf/util/map.h | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h new file mode 100644 index 000000000..b1c0686db --- /dev/null +++ b/tools/perf/util/map.h @@ -0,0 +1,188 @@ +/* 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> + +struct dso; +struct maps; +struct machine; + +struct map { + union { + struct rb_node rb_node; + struct list_head node; + }; + 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 flags; +}; + +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 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 __maybe_unused, u64 ip) +{ + return ip; +} + +static inline size_t map__size(const struct map *map) +{ + return map->end - map->start; +} + +/* 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); + +struct symbol; +struct thread; + +/* map__for_each_symbol - iterate over the symbols in the given map + * + * @map: the 'struct map *' in which symbols itereated + * @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) + +/* 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 + * @sym_name: the symbol name + * @pos: the 'struct symbol *' to use as a loop cursor + */ +#define __map__for_each_symbol_by_name(map, sym_name, pos) \ + for (pos = map__find_symbol_by_name(map, sym_name); \ + pos && \ + !symbol__match_symbol_name(pos->name, sym_name, \ + SYMBOL_TAG_INCLUDE__DEFAULT_ONLY); \ + pos = symbol__next_by_name(pos)) + +#define map__for_each_symbol_by_name(map, sym_name, pos) \ + __map__for_each_symbol_by_name(map, sym_name, (pos)) + +void map__init(struct map *map, + u64 start, u64 end, u64 pgoff, struct dso *dso); + +struct dso_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 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; +} + +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); +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); +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); + +#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]"); +} +#endif /* __PERF_MAP_H */ |