Contributors: 30
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Arnaldo Carvalho de Melo |
548 |
38.24% |
59 |
38.06% |
| Jiri Olsa |
415 |
28.96% |
22 |
14.19% |
| Adrian Hunter |
173 |
12.07% |
21 |
13.55% |
| Namhyung Kim |
102 |
7.12% |
12 |
7.74% |
| Masami Hiramatsu |
26 |
1.81% |
3 |
1.94% |
| Song Liu |
22 |
1.54% |
1 |
0.65% |
| Yanmin Zhang |
20 |
1.40% |
1 |
0.65% |
| Srikar Dronamraju |
12 |
0.84% |
2 |
1.29% |
| Cody P Schafer |
11 |
0.77% |
2 |
1.29% |
| James Clark |
11 |
0.77% |
3 |
1.94% |
| Ian Rogers |
11 |
0.77% |
2 |
1.29% |
| Wang Nan |
10 |
0.70% |
3 |
1.94% |
| Franck Bui-Huu |
10 |
0.70% |
1 |
0.65% |
| Krister Johansen |
7 |
0.49% |
2 |
1.29% |
| Fangrui Song |
6 |
0.42% |
1 |
0.65% |
| Stéphane Eranian |
6 |
0.42% |
2 |
1.29% |
| Athira Rajeev |
6 |
0.42% |
2 |
1.29% |
| Milian Wolff |
6 |
0.42% |
2 |
1.29% |
| Sukadev Bhattiprolu |
5 |
0.35% |
1 |
0.65% |
| Davidlohr Bueso A |
5 |
0.35% |
2 |
1.29% |
| Peter Zijlstra |
5 |
0.35% |
1 |
0.65% |
| Frédéric Weisbecker |
3 |
0.21% |
2 |
1.29% |
| Elena Reshetova |
2 |
0.14% |
1 |
0.65% |
| Gustavo A. R. Silva |
2 |
0.14% |
1 |
0.65% |
| Akihiro Nagai |
2 |
0.14% |
1 |
0.65% |
| Robert Richter |
2 |
0.14% |
1 |
0.65% |
| Ricardo Ribalda Delgado |
2 |
0.14% |
1 |
0.65% |
| Ingo Molnar |
1 |
0.07% |
1 |
0.65% |
| Waiman Long |
1 |
0.07% |
1 |
0.65% |
| Greg Kroah-Hartman |
1 |
0.07% |
1 |
0.65% |
| Total |
1433 |
|
155 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_DSO
#define __PERF_DSO
#include <linux/refcount.h>
#include <linux/types.h>
#include <linux/rbtree.h>
#include <sys/types.h>
#include <stdbool.h>
#include <stdio.h>
#include <linux/bitops.h>
#include "build-id.h"
#include "mutex.h"
struct machine;
struct map;
struct perf_env;
#define DSO__NAME_KALLSYMS "[kernel.kallsyms]"
#define DSO__NAME_KCORE "[kernel.kcore]"
enum dso_binary_type {
DSO_BINARY_TYPE__KALLSYMS = 0,
DSO_BINARY_TYPE__GUEST_KALLSYMS,
DSO_BINARY_TYPE__VMLINUX,
DSO_BINARY_TYPE__GUEST_VMLINUX,
DSO_BINARY_TYPE__JAVA_JIT,
DSO_BINARY_TYPE__DEBUGLINK,
DSO_BINARY_TYPE__BUILD_ID_CACHE,
DSO_BINARY_TYPE__BUILD_ID_CACHE_DEBUGINFO,
DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
DSO_BINARY_TYPE__MIXEDUP_UBUNTU_DEBUGINFO,
DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
DSO_BINARY_TYPE__GUEST_KMODULE,
DSO_BINARY_TYPE__GUEST_KMODULE_COMP,
DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP,
DSO_BINARY_TYPE__KCORE,
DSO_BINARY_TYPE__GUEST_KCORE,
DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO,
DSO_BINARY_TYPE__BPF_PROG_INFO,
DSO_BINARY_TYPE__BPF_IMAGE,
DSO_BINARY_TYPE__OOL,
DSO_BINARY_TYPE__NOT_FOUND,
};
enum dso_space_type {
DSO_SPACE__USER = 0,
DSO_SPACE__KERNEL,
DSO_SPACE__KERNEL_GUEST
};
enum dso_swap_type {
DSO_SWAP__UNSET,
DSO_SWAP__NO,
DSO_SWAP__YES,
};
enum dso_data_status {
DSO_DATA_STATUS_ERROR = -1,
DSO_DATA_STATUS_UNKNOWN = 0,
DSO_DATA_STATUS_OK = 1,
};
enum dso_data_status_seen {
DSO_DATA_STATUS_SEEN_ITRACE,
};
enum dso_type {
DSO__TYPE_UNKNOWN,
DSO__TYPE_64BIT,
DSO__TYPE_32BIT,
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; \
BUG_ON(dso->needs_swap == DSO_SWAP__UNSET); \
if (dso->needs_swap == DSO_SWAP__YES) { \
switch (sizeof(____r)) { \
case 2: \
____r = bswap_16(val); \
break; \
case 4: \
____r = bswap_32(val); \
break; \
case 8: \
____r = bswap_64(val); \
break; \
default: \
BUG_ON(1); \
} \
} \
____r; \
})
#define DSO__DATA_CACHE_SIZE 4096
#define DSO__DATA_CACHE_MASK ~(DSO__DATA_CACHE_SIZE - 1)
/*
* Data about backing storage DSO, comes from PERF_RECORD_MMAP2 meta events
*/
struct dso_id {
u32 maj;
u32 min;
u64 ino;
u64 ino_generation;
};
struct dso_cache {
struct rb_node rb_node;
u64 offset;
u64 size;
char data[];
};
struct auxtrace_cache;
struct dso {
struct mutex lock;
struct list_head node;
struct rb_node rb_node; /* rbtree node sorted by long name */
struct rb_root *root; /* root of rbtree that rb_node is in */
struct rb_root_cached symbols;
struct symbol **symbol_names;
size_t symbol_names_len;
struct rb_root_cached inlined_nodes;
struct rb_root_cached srclines;
struct rb_root data_types;
struct {
u64 addr;
struct symbol *symbol;
} last_find_result;
void *a2l;
char *symsrc_filename;
unsigned int a2l_fails;
enum dso_space_type kernel;
bool is_kmod;
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 header_build_id:1;
u8 has_srcline:1;
u8 hit:1;
u8 annotate_warned:1;
u8 auxtrace_warned:1;
u8 short_name_allocated:1;
u8 long_name_allocated:1;
u8 is_64_bit:1;
bool sorted_by_name;
bool loaded;
u8 rel;
struct build_id bid;
u64 text_offset;
u64 text_end;
const char *short_name;
const char *long_name;
u16 long_name_len;
u16 short_name_len;
void *dwfl; /* DWARF debug info */
struct auxtrace_cache *auxtrace_cache;
int comp;
/* dso data file */
struct {
struct rb_root cache;
int fd;
int status;
u32 status_seen;
u64 file_size;
struct list_head open_entry;
u64 elf_base_addr;
u64 debug_frame_offset;
u64 eh_frame_hdr_addr;
u64 eh_frame_hdr_offset;
} data;
/* bpf prog information */
struct {
u32 id;
u32 sub_id;
struct perf_env *env;
} bpf_prog;
union { /* Tool specific area */
void *priv;
u64 db_id;
};
struct nsinfo *nsinfo;
struct dso_id id;
refcount_t refcnt;
char name[];
};
/* dso__for_each_symbol - iterate over the symbols of given type
*
* @dso: the 'struct dso *' 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
*/
#define dso__for_each_symbol(dso, pos, n) \
symbols__for_each_entry(&(dso)->symbols, pos, n)
#define dsos__for_each_with_build_id(pos, head) \
list_for_each_entry(pos, head, node) \
if (!pos->has_build_id) \
continue; \
else
static inline void dso__set_loaded(struct dso *dso)
{
dso->loaded = true;
}
struct dso *dso__new_id(const char *name, struct dso_id *id);
struct dso *dso__new(const char *name);
void dso__delete(struct dso *dso);
int dso__cmp_id(struct dso *a, struct dso *b);
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);
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);
static inline bool dso__has_symbols(const struct dso *dso)
{
return !RB_EMPTY_ROOT(&dso->symbols.rb_root);
}
char *dso__filename_with_chroot(const struct dso *dso, const char *filename);
bool dso__sorted_by_name(const struct dso *dso);
void dso__set_sorted_by_name(struct dso *dso);
void dso__sort_by_name(struct dso *dso);
void dso__set_build_id(struct dso *dso, struct build_id *bid);
bool dso__build_id_equal(const struct dso *dso, struct build_id *bid);
void dso__read_running_kernel_build_id(struct dso *dso,
struct machine *machine);
int dso__kernel_module_get_build_id(struct dso *dso, const char *root_dir);
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_kernel_module(const char *pathname, int cpumode);
bool dso__needs_decompress(struct dso *dso);
int dso__decompress_kmodule_fd(struct dso *dso, const char *name);
int dso__decompress_kmodule_path(struct dso *dso, const char *name,
char *pathname, size_t len);
int filename__decompress(const char *name, char *pathname,
size_t len, int comp, int *err);
#define KMOD_DECOMP_NAME "/tmp/perf-kmod-XXXXXX"
#define KMOD_DECOMP_LEN sizeof(KMOD_DECOMP_NAME)
struct kmod_path {
char *name;
int comp;
bool kmod;
};
int __kmod_path__parse(struct kmod_path *m, const char *path,
bool alloc_name);
#define kmod_path__parse(__m, __p) __kmod_path__parse(__m, __p, false)
#define kmod_path__parse_name(__m, __p) __kmod_path__parse(__m, __p, true)
void dso__set_module_info(struct dso *dso, struct kmod_path *m,
struct machine *machine);
/*
* The dso__data_* external interface provides following functions:
* dso__data_get_fd
* dso__data_put_fd
* dso__data_close
* dso__data_size
* dso__data_read_offset
* dso__data_read_addr
* dso__data_write_cache_offs
* dso__data_write_cache_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_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);
* 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_get_fd(struct dso *dso, struct machine *machine);
void dso__data_put_fd(struct dso *dso);
void dso__data_close(struct dso *dso);
int dso__data_file_size(struct dso *dso, struct machine *machine);
off_t dso__data_size(struct dso *dso, struct machine *machine);
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,
struct machine *machine, u64 addr,
u8 *data, ssize_t size);
bool dso__data_status_seen(struct dso *dso, enum dso_data_status_seen by);
ssize_t dso__data_write_cache_offs(struct dso *dso, struct machine *machine,
u64 offset, const u8 *data, ssize_t size);
ssize_t dso__data_write_cache_addr(struct dso *dso, struct map *map,
struct machine *machine, u64 addr,
const u8 *data, ssize_t size);
struct map *dso__new_map(const char *name);
struct dso *machine__findnew_kernel(struct machine *machine, const char *name,
const char *short_name, int dso_type);
void dso__reset_find_symbol_cache(struct dso *dso);
size_t dso__fprintf_symbols_by_name(struct dso *dso, FILE *fp);
size_t dso__fprintf(struct dso *dso, FILE *fp);
static inline bool dso__is_vmlinux(const struct dso *dso)
{
return dso->binary_type == DSO_BINARY_TYPE__VMLINUX ||
dso->binary_type == DSO_BINARY_TYPE__GUEST_VMLINUX;
}
static inline bool dso__is_kcore(const struct dso *dso)
{
return dso->binary_type == DSO_BINARY_TYPE__KCORE ||
dso->binary_type == DSO_BINARY_TYPE__GUEST_KCORE;
}
static inline bool dso__is_kallsyms(const struct dso *dso)
{
return dso->kernel && dso->long_name[0] != '/';
}
bool dso__is_object_file(const struct dso *dso);
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);
void reset_fd_limit(void);
#endif /* __PERF_DSO */