diff options
Diffstat (limited to 'tools/perf/util/dso.h')
| -rw-r--r-- | tools/perf/util/dso.h | 98 |
1 files changed, 82 insertions, 16 deletions
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h index b793053335d..ad553ba257b 100644 --- a/tools/perf/util/dso.h +++ b/tools/perf/util/dso.h @@ -4,8 +4,9 @@ #include <linux/types.h> #include <linux/rbtree.h> #include <stdbool.h> -#include "types.h" +#include <linux/types.h> #include "map.h" +#include "build-id.h" enum dso_binary_type { DSO_BINARY_TYPE__KALLSYMS = 0, @@ -23,6 +24,7 @@ enum dso_binary_type { DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE, DSO_BINARY_TYPE__KCORE, DSO_BINARY_TYPE__GUEST_KCORE, + DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO, DSO_BINARY_TYPE__NOT_FOUND, }; @@ -74,28 +76,50 @@ struct dso { struct list_head node; struct rb_root symbols[MAP__NR_TYPES]; struct rb_root symbol_names[MAP__NR_TYPES]; - struct rb_root cache; + void *a2l; + char *symsrc_filename; + unsigned int a2l_fails; enum dso_kernel_type kernel; enum dso_swap_type needs_swap; enum dso_binary_type symtab_type; - enum dso_binary_type data_type; + enum dso_binary_type binary_type; u8 adjust_symbols:1; u8 has_build_id:1; + u8 has_srcline:1; u8 hit:1; u8 annotate_warned:1; - u8 sname_alloc:1; - u8 lname_alloc:1; + u8 short_name_allocated:1; + u8 long_name_allocated:1; u8 sorted_by_name; u8 loaded; u8 rel; u8 build_id[BUILD_ID_SIZE]; const char *short_name; - char *long_name; + const char *long_name; u16 long_name_len; u16 short_name_len; + + /* dso data file */ + struct { + struct rb_root cache; + int fd; + size_t file_size; + struct list_head open_entry; + } data; + char name[0]; }; +/* dso__for_each_symbol - iterate over the symbols of given type + * + * @dso: the 'struct dso *' 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 + * @type: the 'enum map_type' type of symbols + */ +#define dso__for_each_symbol(dso, pos, n, type) \ + symbols__for_each_entry(&(dso)->symbols[(type)], pos, n) + static inline void dso__set_loaded(struct dso *dso, enum map_type type) { dso->loaded |= (1 << type); @@ -104,8 +128,8 @@ static inline void dso__set_loaded(struct dso *dso, enum map_type type) struct dso *dso__new(const char *name); void dso__delete(struct dso *dso); -void dso__set_short_name(struct dso *dso, const char *name); -void dso__set_long_name(struct dso *dso, char *name); +void dso__set_short_name(struct dso *dso, const char *name, bool name_allocated); +void dso__set_long_name(struct dso *dso, const char *name, bool name_allocated); int dso__name_len(const struct dso *dso); @@ -122,10 +146,50 @@ void dso__read_running_kernel_build_id(struct dso *dso, int dso__kernel_module_get_build_id(struct dso *dso, const char *root_dir); char dso__symtab_origin(const struct dso *dso); -int dso__binary_type_file(struct dso *dso, enum dso_binary_type type, - char *root_dir, char *file, size_t size); - +int dso__read_binary_type_filename(const struct dso *dso, enum dso_binary_type type, + char *root_dir, char *filename, size_t size); + +/* + * The dso__data_* external interface provides following functions: + * dso__data_fd + * dso__data_close + * dso__data_read_offset + * dso__data_read_addr + * + * Please refer to the dso.c object code for each function and + * arguments documentation. Following text tries to explain the + * dso file descriptor caching. + * + * The dso__data* interface allows caching of opened file descriptors + * to speed up the dso data accesses. The idea is to leave the file + * descriptor opened ideally for the whole life of the dso object. + * + * The current usage of the dso__data_* interface is as follows: + * + * Get DSO's fd: + * int fd = dso__data_fd(dso, machine); + * USE 'fd' SOMEHOW + * + * Read DSO's data: + * n = dso__data_read_offset(dso_0, &machine, 0, buf, BUFSIZE); + * n = dso__data_read_addr(dso_0, &machine, 0, buf, BUFSIZE); + * + * Eventually close DSO's fd: + * dso__data_close(dso); + * + * It is not necessary to close the DSO object data file. Each time new + * DSO data file is opened, the limit (RLIMIT_NOFILE/2) is checked. Once + * it is crossed, the oldest opened DSO object is closed. + * + * The dso__delete function calls close_dso function to ensure the + * data file descriptor gets closed/unmapped before the dso object + * is freed. + * + * TODO +*/ int dso__data_fd(struct dso *dso, struct machine *machine); +void dso__data_close(struct dso *dso); + ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine, u64 offset, u8 *data, ssize_t size); ssize_t dso__data_read_addr(struct dso *dso, struct map *map, @@ -137,7 +201,7 @@ struct dso *dso__kernel_findnew(struct machine *machine, const char *name, const char *short_name, int dso_type); void dsos__add(struct list_head *head, struct dso *dso); -struct dso *dsos__find(struct list_head *head, const char *name, +struct dso *dsos__find(const struct list_head *head, const char *name, bool cmp_short); struct dso *__dsos__findnew(struct list_head *head, const char *name); bool __dsos__read_build_ids(struct list_head *head, bool with_hits); @@ -153,14 +217,16 @@ size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp); static inline bool dso__is_vmlinux(struct dso *dso) { - return dso->data_type == DSO_BINARY_TYPE__VMLINUX || - dso->data_type == DSO_BINARY_TYPE__GUEST_VMLINUX; + return dso->binary_type == DSO_BINARY_TYPE__VMLINUX || + dso->binary_type == DSO_BINARY_TYPE__GUEST_VMLINUX; } static inline bool dso__is_kcore(struct dso *dso) { - return dso->data_type == DSO_BINARY_TYPE__KCORE || - dso->data_type == DSO_BINARY_TYPE__GUEST_KCORE; + return dso->binary_type == DSO_BINARY_TYPE__KCORE || + dso->binary_type == DSO_BINARY_TYPE__GUEST_KCORE; } +void dso__free_a2l(struct dso *dso); + #endif /* __PERF_DSO */ |