diff options
Diffstat (limited to 'tools/perf/util/dso.h')
| -rw-r--r-- | tools/perf/util/dso.h | 92 |
1 files changed, 80 insertions, 12 deletions
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h index ced92841ff97..2fe98bb0e95b 100644 --- a/tools/perf/util/dso.h +++ b/tools/perf/util/dso.h @@ -1,9 +1,11 @@ #ifndef __PERF_DSO #define __PERF_DSO +#include <linux/atomic.h> #include <linux/types.h> #include <linux/rbtree.h> #include <stdbool.h> +#include <pthread.h> #include <linux/types.h> #include <linux/bitops.h> #include "map.h" @@ -60,6 +62,31 @@ enum dso_type { DSO__TYPE_X32BIT, }; +enum dso_load_errno { + DSO_LOAD_ERRNO__SUCCESS = 0, + + /* + * Choose an arbitrary negative big number not to clash with standard + * errno since SUS requires the errno has distinct positive values. + * See 'Issue 6' in the link below. + * + * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html + */ + __DSO_LOAD_ERRNO__START = -10000, + + DSO_LOAD_ERRNO__INTERNAL_ERROR = __DSO_LOAD_ERRNO__START, + + /* for symsrc__init() */ + DSO_LOAD_ERRNO__INVALID_ELF, + DSO_LOAD_ERRNO__CANNOT_READ_BUILDID, + DSO_LOAD_ERRNO__MISMATCHING_BUILDID, + + /* for decompress_kmodule */ + DSO_LOAD_ERRNO__DECOMPRESSION_FAILURE, + + __DSO_LOAD_ERRNO__END, +}; + #define DSO__SWAP(dso, type, val) \ ({ \ type ____r = val; \ @@ -99,9 +126,13 @@ struct dso_cache { struct dsos { struct list_head head; struct rb_root root; /* rbtree root sorted by long name */ + pthread_rwlock_t lock; }; +struct auxtrace_cache; + struct dso { + pthread_mutex_t lock; struct list_head node; struct rb_node rb_node; /* rbtree node sorted by long name */ struct rb_root symbols[MAP__NR_TYPES]; @@ -113,6 +144,7 @@ struct dso { enum dso_swap_type needs_swap; enum dso_binary_type symtab_type; enum dso_binary_type binary_type; + enum dso_load_errno load_errno; u8 adjust_symbols:1; u8 has_build_id:1; u8 has_srcline:1; @@ -130,6 +162,7 @@ struct dso { u16 long_name_len; u16 short_name_len; void *dwfl; /* DWARF debug info */ + struct auxtrace_cache *auxtrace_cache; /* dso data file */ struct { @@ -139,14 +172,15 @@ struct dso { u32 status_seen; size_t file_size; struct list_head open_entry; - u64 frame_offset; + u64 debug_frame_offset; + u64 eh_frame_hdr_offset; } data; union { /* Tool specific area */ void *priv; u64 db_id; }; - + atomic_t refcnt; char name[0]; }; @@ -173,6 +207,17 @@ void dso__set_long_name(struct dso *dso, const char *name, bool name_allocated); int dso__name_len(const struct dso *dso); +struct dso *dso__get(struct dso *dso); +void dso__put(struct dso *dso); + +static inline void __dso__zput(struct dso **dso) +{ + dso__put(*dso); + *dso = NULL; +} + +#define dso__zput(dso) __dso__zput(&dso) + bool dso__loaded(const struct dso *dso, enum map_type type); bool dso__sorted_by_name(const struct dso *dso, enum map_type type); @@ -189,14 +234,28 @@ char dso__symtab_origin(const struct dso *dso); int dso__read_binary_type_filename(const struct dso *dso, enum dso_binary_type type, char *root_dir, char *filename, size_t size); bool is_supported_compression(const char *ext); -bool is_kmodule_extension(const char *ext); -bool is_kernel_module(const char *pathname, bool *compressed); +bool is_kernel_module(const char *pathname, int cpumode); bool decompress_to_file(const char *ext, const char *filename, int output_fd); bool dso__needs_decompress(struct dso *dso); +struct kmod_path { + char *name; + char *ext; + bool comp; + bool kmod; +}; + +int __kmod_path__parse(struct kmod_path *m, const char *path, + bool alloc_name, bool alloc_ext); + +#define kmod_path__parse(__m, __p) __kmod_path__parse(__m, __p, false, false) +#define kmod_path__parse_name(__m, __p) __kmod_path__parse(__m, __p, true , false) +#define kmod_path__parse_ext(__m, __p) __kmod_path__parse(__m, __p, false, true) + /* * The dso__data_* external interface provides following functions: - * dso__data_fd + * dso__data_get_fd + * dso__data_put_fd * dso__data_close * dso__data_size * dso__data_read_offset @@ -213,8 +272,11 @@ bool dso__needs_decompress(struct dso *dso); * 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 + * int fd = dso__data_get_fd(dso, machine); + * if (fd >= 0) { + * USE 'fd' SOMEHOW + * dso__data_put_fd(dso); + * } * * Read DSO's data: * n = dso__data_read_offset(dso_0, &machine, 0, buf, BUFSIZE); @@ -233,7 +295,8 @@ bool dso__needs_decompress(struct dso *dso); * * TODO */ -int dso__data_fd(struct dso *dso, struct machine *machine); +int dso__data_get_fd(struct dso *dso, struct machine *machine); +void dso__data_put_fd(struct dso *dso __maybe_unused); void dso__data_close(struct dso *dso); off_t dso__data_size(struct dso *dso, struct machine *machine); @@ -245,13 +308,16 @@ ssize_t dso__data_read_addr(struct dso *dso, struct map *map, bool dso__data_status_seen(struct dso *dso, enum dso_data_status_seen by); struct map *dso__new_map(const char *name); -struct dso *dso__kernel_findnew(struct machine *machine, const char *name, - const char *short_name, int dso_type); +struct dso *machine__findnew_kernel(struct machine *machine, const char *name, + const char *short_name, int dso_type); +void __dsos__add(struct dsos *dsos, struct dso *dso); void dsos__add(struct dsos *dsos, struct dso *dso); -struct dso *dsos__find(const struct dsos *dsos, const char *name, - bool cmp_short); +struct dso *__dsos__addnew(struct dsos *dsos, const char *name); +struct dso *__dsos__find(struct dsos *dsos, const char *name, bool cmp_short); +struct dso *dsos__find(struct dsos *dsos, const char *name, bool cmp_short); struct dso *__dsos__findnew(struct dsos *dsos, const char *name); +struct dso *dsos__findnew(struct dsos *dsos, const char *name); bool __dsos__read_build_ids(struct list_head *head, bool with_hits); size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp, @@ -279,4 +345,6 @@ void dso__free_a2l(struct dso *dso); enum dso_type dso__type(struct dso *dso, struct machine *machine); +int dso__strerror_load(struct dso *dso, char *buf, size_t buflen); + #endif /* __PERF_DSO */ |