mirror of
https://github.com/torvalds/linux.git
synced 2024-12-15 15:41:58 +00:00
29a0fc9b2b
For building perf without libelf, we can set NO_LIBELF=1 as a argument of make. It then defines NO_LIBELF_SUPPORT macro for C code to do the proper handling. However it usually used in a negative semantics - e.g. #ifndef - so we saw double negations which can be misleading. Convert it to a positive form to make it more readable. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1348824728-14025-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
389 lines
10 KiB
C
389 lines
10 KiB
C
#ifndef __PERF_SYMBOL
|
|
#define __PERF_SYMBOL 1
|
|
|
|
#include <linux/types.h>
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
#include "map.h"
|
|
#include "../perf.h"
|
|
#include <linux/list.h>
|
|
#include <linux/rbtree.h>
|
|
#include <stdio.h>
|
|
#include <byteswap.h>
|
|
#include <libgen.h>
|
|
|
|
#ifdef LIBELF_SUPPORT
|
|
#include <libelf.h>
|
|
#include <gelf.h>
|
|
#include <elf.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_CPLUS_DEMANGLE
|
|
extern char *cplus_demangle(const char *, int);
|
|
|
|
static inline char *bfd_demangle(void __maybe_unused *v, const char *c, int i)
|
|
{
|
|
return cplus_demangle(c, i);
|
|
}
|
|
#else
|
|
#ifdef NO_DEMANGLE
|
|
static inline char *bfd_demangle(void __maybe_unused *v,
|
|
const char __maybe_unused *c,
|
|
int __maybe_unused i)
|
|
{
|
|
return NULL;
|
|
}
|
|
#else
|
|
#define PACKAGE 'perf'
|
|
#include <bfd.h>
|
|
#endif
|
|
#endif
|
|
|
|
int hex2u64(const char *ptr, u64 *val);
|
|
char *strxfrchar(char *s, char from, char to);
|
|
|
|
/*
|
|
* libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
|
|
* for newer versions we can use mmap to reduce memory usage:
|
|
*/
|
|
#ifdef LIBELF_MMAP
|
|
# define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
|
|
#else
|
|
# define PERF_ELF_C_READ_MMAP ELF_C_READ
|
|
#endif
|
|
|
|
#ifndef DMGL_PARAMS
|
|
#define DMGL_PARAMS (1 << 0) /* Include function args */
|
|
#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */
|
|
#endif
|
|
|
|
#define BUILD_ID_SIZE 20
|
|
|
|
/** struct symbol - symtab entry
|
|
*
|
|
* @ignore - resolvable but tools ignore it (e.g. idle routines)
|
|
*/
|
|
struct symbol {
|
|
struct rb_node rb_node;
|
|
u64 start;
|
|
u64 end;
|
|
u16 namelen;
|
|
u8 binding;
|
|
bool ignore;
|
|
char name[0];
|
|
};
|
|
|
|
void symbol__delete(struct symbol *sym);
|
|
|
|
static inline size_t symbol__size(const struct symbol *sym)
|
|
{
|
|
return sym->end - sym->start + 1;
|
|
}
|
|
|
|
struct strlist;
|
|
|
|
struct symbol_conf {
|
|
unsigned short priv_size;
|
|
unsigned short nr_events;
|
|
bool try_vmlinux_path,
|
|
show_kernel_path,
|
|
use_modules,
|
|
sort_by_name,
|
|
show_nr_samples,
|
|
show_total_period,
|
|
use_callchain,
|
|
exclude_other,
|
|
show_cpu_utilization,
|
|
initialized,
|
|
kptr_restrict,
|
|
annotate_asm_raw,
|
|
annotate_src;
|
|
const char *vmlinux_name,
|
|
*kallsyms_name,
|
|
*source_prefix,
|
|
*field_sep;
|
|
const char *default_guest_vmlinux_name,
|
|
*default_guest_kallsyms,
|
|
*default_guest_modules;
|
|
const char *guestmount;
|
|
const char *dso_list_str,
|
|
*comm_list_str,
|
|
*sym_list_str,
|
|
*col_width_list_str;
|
|
struct strlist *dso_list,
|
|
*comm_list,
|
|
*sym_list,
|
|
*dso_from_list,
|
|
*dso_to_list,
|
|
*sym_from_list,
|
|
*sym_to_list;
|
|
const char *symfs;
|
|
};
|
|
|
|
extern struct symbol_conf symbol_conf;
|
|
|
|
static inline void *symbol__priv(struct symbol *sym)
|
|
{
|
|
return ((void *)sym) - symbol_conf.priv_size;
|
|
}
|
|
|
|
struct ref_reloc_sym {
|
|
const char *name;
|
|
u64 addr;
|
|
u64 unrelocated_addr;
|
|
};
|
|
|
|
struct map_symbol {
|
|
struct map *map;
|
|
struct symbol *sym;
|
|
bool unfolded;
|
|
bool has_children;
|
|
};
|
|
|
|
struct addr_map_symbol {
|
|
struct map *map;
|
|
struct symbol *sym;
|
|
u64 addr;
|
|
u64 al_addr;
|
|
};
|
|
|
|
struct branch_info {
|
|
struct addr_map_symbol from;
|
|
struct addr_map_symbol to;
|
|
struct branch_flags flags;
|
|
};
|
|
|
|
struct addr_location {
|
|
struct thread *thread;
|
|
struct map *map;
|
|
struct symbol *sym;
|
|
u64 addr;
|
|
char level;
|
|
bool filtered;
|
|
u8 cpumode;
|
|
s32 cpu;
|
|
};
|
|
|
|
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__FEDORA_DEBUGINFO,
|
|
DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
|
|
DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
|
|
DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
|
|
DSO_BINARY_TYPE__GUEST_KMODULE,
|
|
DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
|
|
DSO_BINARY_TYPE__NOT_FOUND,
|
|
};
|
|
|
|
enum dso_kernel_type {
|
|
DSO_TYPE_USER = 0,
|
|
DSO_TYPE_KERNEL,
|
|
DSO_TYPE_GUEST_KERNEL
|
|
};
|
|
|
|
enum dso_swap_type {
|
|
DSO_SWAP__UNSET,
|
|
DSO_SWAP__NO,
|
|
DSO_SWAP__YES,
|
|
};
|
|
|
|
#define DSO__DATA_CACHE_SIZE 4096
|
|
#define DSO__DATA_CACHE_MASK ~(DSO__DATA_CACHE_SIZE - 1)
|
|
|
|
struct dso_cache {
|
|
struct rb_node rb_node;
|
|
u64 offset;
|
|
u64 size;
|
|
char data[0];
|
|
};
|
|
|
|
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;
|
|
enum dso_kernel_type kernel;
|
|
enum dso_swap_type needs_swap;
|
|
enum dso_binary_type symtab_type;
|
|
enum dso_binary_type data_type;
|
|
u8 adjust_symbols:1;
|
|
u8 has_build_id:1;
|
|
u8 hit:1;
|
|
u8 annotate_warned:1;
|
|
u8 sname_alloc:1;
|
|
u8 lname_alloc:1;
|
|
u8 sorted_by_name;
|
|
u8 loaded;
|
|
u8 build_id[BUILD_ID_SIZE];
|
|
const char *short_name;
|
|
char *long_name;
|
|
u16 long_name_len;
|
|
u16 short_name_len;
|
|
char name[0];
|
|
};
|
|
|
|
struct symsrc {
|
|
char *name;
|
|
int fd;
|
|
enum dso_binary_type type;
|
|
|
|
#ifdef LIBELF_SUPPORT
|
|
Elf *elf;
|
|
GElf_Ehdr ehdr;
|
|
|
|
Elf_Scn *opdsec;
|
|
size_t opdidx;
|
|
GElf_Shdr opdshdr;
|
|
|
|
Elf_Scn *symtab;
|
|
GElf_Shdr symshdr;
|
|
|
|
Elf_Scn *dynsym;
|
|
size_t dynsym_idx;
|
|
GElf_Shdr dynshdr;
|
|
|
|
bool adjust_symbols;
|
|
#endif
|
|
};
|
|
|
|
void symsrc__destroy(struct symsrc *ss);
|
|
int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
|
|
enum dso_binary_type type);
|
|
bool symsrc__has_symtab(struct symsrc *ss);
|
|
bool symsrc__possibly_runtime(struct symsrc *ss);
|
|
|
|
#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; \
|
|
})
|
|
|
|
struct dso *dso__new(const char *name);
|
|
void dso__delete(struct dso *dso);
|
|
|
|
int dso__name_len(const struct dso *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);
|
|
|
|
static inline void dso__set_loaded(struct dso *dso, enum map_type type)
|
|
{
|
|
dso->loaded |= (1 << type);
|
|
}
|
|
|
|
void dso__sort_by_name(struct dso *dso, enum map_type 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__findnew(struct list_head *head, const char *name);
|
|
|
|
int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter);
|
|
int dso__load_vmlinux(struct dso *dso, struct map *map,
|
|
const char *vmlinux, symbol_filter_t filter);
|
|
int dso__load_vmlinux_path(struct dso *dso, struct map *map,
|
|
symbol_filter_t filter);
|
|
int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
|
|
symbol_filter_t filter);
|
|
int machine__load_kallsyms(struct machine *machine, const char *filename,
|
|
enum map_type type, symbol_filter_t filter);
|
|
int machine__load_vmlinux_path(struct machine *machine, enum map_type type,
|
|
symbol_filter_t filter);
|
|
|
|
size_t __dsos__fprintf(struct list_head *head, FILE *fp);
|
|
|
|
size_t machine__fprintf_dsos_buildid(struct machine *machine,
|
|
FILE *fp, bool with_hits);
|
|
size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp);
|
|
size_t machines__fprintf_dsos_buildid(struct rb_root *machines,
|
|
FILE *fp, bool with_hits);
|
|
size_t dso__fprintf_buildid(struct dso *dso, FILE *fp);
|
|
size_t dso__fprintf_symbols_by_name(struct dso *dso,
|
|
enum map_type type, FILE *fp);
|
|
size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp);
|
|
|
|
char dso__symtab_origin(const struct dso *dso);
|
|
void dso__set_long_name(struct dso *dso, char *name);
|
|
void dso__set_build_id(struct dso *dso, void *build_id);
|
|
bool dso__build_id_equal(const struct dso *dso, u8 *build_id);
|
|
void dso__read_running_kernel_build_id(struct dso *dso,
|
|
struct machine *machine);
|
|
struct map *dso__new_map(const char *name);
|
|
struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
|
|
u64 addr);
|
|
struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
|
|
const char *name);
|
|
|
|
int filename__read_build_id(const char *filename, void *bf, size_t size);
|
|
int sysfs__read_build_id(const char *filename, void *bf, size_t size);
|
|
bool __dsos__read_build_ids(struct list_head *head, bool with_hits);
|
|
int build_id__sprintf(const u8 *build_id, int len, char *bf);
|
|
int kallsyms__parse(const char *filename, void *arg,
|
|
int (*process_symbol)(void *arg, const char *name,
|
|
char type, u64 start));
|
|
int filename__read_debuglink(const char *filename, char *debuglink,
|
|
size_t size);
|
|
|
|
void machine__destroy_kernel_maps(struct machine *machine);
|
|
int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel);
|
|
int machine__create_kernel_maps(struct machine *machine);
|
|
|
|
int machines__create_kernel_maps(struct rb_root *machines, pid_t pid);
|
|
int machines__create_guest_kernel_maps(struct rb_root *machines);
|
|
void machines__destroy_guest_kernel_maps(struct rb_root *machines);
|
|
|
|
int symbol__init(void);
|
|
void symbol__exit(void);
|
|
void symbol__elf_init(void);
|
|
struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
|
|
size_t symbol__fprintf_symname_offs(const struct symbol *sym,
|
|
const struct addr_location *al, FILE *fp);
|
|
size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
|
|
bool symbol_type__is_a(char symbol_type, enum map_type map_type);
|
|
|
|
size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
|
|
|
|
int dso__binary_type_file(struct dso *dso, enum dso_binary_type type,
|
|
char *root_dir, char *file, size_t size);
|
|
|
|
int dso__data_fd(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);
|
|
int dso__test_data(void);
|
|
int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
|
|
struct symsrc *runtime_ss, symbol_filter_t filter,
|
|
int kmodule);
|
|
int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss,
|
|
struct map *map, symbol_filter_t filter);
|
|
|
|
void symbols__insert(struct rb_root *symbols, struct symbol *sym);
|
|
void symbols__fixup_duplicate(struct rb_root *symbols);
|
|
void symbols__fixup_end(struct rb_root *symbols);
|
|
void __map_groups__fixup_end(struct map_groups *mg, enum map_type type);
|
|
|
|
#endif /* __PERF_SYMBOL */
|