mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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84087126d5
The Makefile now automatically defines LIBELF_NO_MMAP when libelf 0.8.x is detected. libelf 0.8 is still maintained and some distributions such as Arch Linux use it instead of elfutils. Signed-off-by: Marti Raudsepp <marti@juffo.org> Cc: Lucas De Marchi <lucas.de.marchi@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <1256400636.3007.16.camel@newn> Signed-off-by: Ingo Molnar <mingo@elte.hu>
103 lines
2.4 KiB
C
103 lines
2.4 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 "types.h"
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#include <linux/list.h>
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#include <linux/rbtree.h>
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#include "module.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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u64 obj_start;
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u64 hist_sum;
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u64 *hist;
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struct module *module;
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void *priv;
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char name[0];
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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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unsigned int sym_priv_size;
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unsigned char adjust_symbols;
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unsigned char slen_calculated;
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unsigned char origin;
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char name[0];
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};
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extern const char *sym_hist_filter;
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typedef int (*symbol_filter_t)(struct dso *self, struct symbol *sym);
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struct dso *dso__new(const char *name, unsigned int sym_priv_size);
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void dso__delete(struct dso *self);
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static inline void *dso__sym_priv(struct dso *self, struct symbol *sym)
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{
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return ((void *)sym) - self->sym_priv_size;
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}
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struct symbol *dso__find_symbol(struct dso *self, u64 ip);
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int dso__load_kernel(struct dso *self, const char *vmlinux,
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symbol_filter_t filter, int verbose, int modules);
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int dso__load_modules(struct dso *self, symbol_filter_t filter, int verbose);
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int dso__load(struct dso *self, symbol_filter_t filter, int verbose);
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struct dso *dsos__findnew(const char *name);
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void dsos__fprintf(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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int load_kernel(void);
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void symbol__init(void);
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extern struct list_head dsos;
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extern struct dso *kernel_dso;
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extern struct dso *vdso;
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extern struct dso *hypervisor_dso;
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extern const char *vmlinux_name;
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extern int modules;
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#endif /* _PERF_SYMBOL_ */
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