6671cb1674
It should just load kernel symbols, not load the list of modules. There are more stuff to move to other routines, but lets do it in several steps. End goal is to be able to defer symbol table loading till we find a hit for that map address range. So that the kernel & modules are handled just like all the other DSOs in the system. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1258757489-5978-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
#ifndef __PERF_SYMBOL
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#define __PERF_SYMBOL 1
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#include <linux/types.h>
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#include <stdbool.h>
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#include "types.h"
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#include <linux/list.h>
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#include <linux/rbtree.h>
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#include "event.h"
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#ifdef HAVE_CPLUS_DEMANGLE
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extern char *cplus_demangle(const char *, int);
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static inline char *bfd_demangle(void __used *v, const char *c, int i)
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{
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return cplus_demangle(c, i);
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}
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#else
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#ifdef NO_DEMANGLE
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static inline char *bfd_demangle(void __used *v, const char __used *c,
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int __used i)
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{
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return NULL;
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}
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#else
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#include <bfd.h>
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#endif
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#endif
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/*
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* libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
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* for newer versions we can use mmap to reduce memory usage:
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*/
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#ifdef LIBELF_NO_MMAP
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# define PERF_ELF_C_READ_MMAP ELF_C_READ
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#else
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# define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
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#endif
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#ifndef DMGL_PARAMS
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#define DMGL_PARAMS (1 << 0) /* Include function args */
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#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */
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#endif
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struct symbol {
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struct rb_node rb_node;
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u64 start;
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u64 end;
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char name[0];
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};
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extern unsigned int symbol__priv_size;
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static inline void *symbol__priv(struct symbol *self)
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{
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return ((void *)self) - symbol__priv_size;
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}
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struct dso {
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struct list_head node;
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struct rb_root syms;
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struct symbol *(*find_symbol)(struct dso *, u64 ip);
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u8 adjust_symbols:1;
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u8 slen_calculated:1;
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u8 loaded:1;
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u8 has_build_id:1;
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unsigned char origin;
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u8 build_id[BUILD_ID_SIZE];
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u16 long_name_len;
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const char *short_name;
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char *long_name;
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char name[0];
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};
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struct dso *dso__new(const char *name);
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void dso__delete(struct dso *self);
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struct symbol *dso__find_symbol(struct dso *self, u64 ip);
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int dsos__load_modules(void);
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int dsos__load_modules_sym(symbol_filter_t filter);
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struct dso *dsos__findnew(const char *name);
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int dso__load(struct dso *self, struct map *map, symbol_filter_t filter);
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int dso__load_kernel_sym(struct dso *self, symbol_filter_t filter,
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int use_modules);
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void dsos__fprintf(FILE *fp);
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size_t dsos__fprintf_buildid(FILE *fp);
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size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
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size_t dso__fprintf(struct dso *self, FILE *fp);
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char dso__symtab_origin(const struct dso *self);
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void dso__set_build_id(struct dso *self, void *build_id);
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int filename__read_build_id(const char *filename, void *bf, size_t size);
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int sysfs__read_build_id(const char *filename, void *bf, size_t size);
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bool dsos__read_build_ids(void);
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int build_id__sprintf(u8 *self, int len, char *bf);
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struct dso *dsos__load_kernel(void);
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int load_kernel(symbol_filter_t filter, bool use_modules);
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void symbol__init(unsigned int priv_size);
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extern struct list_head dsos;
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extern struct map *kernel_map;
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extern struct dso *vdso;
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extern const char *vmlinux_name;
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#endif /* __PERF_SYMBOL */
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