linux/tools/perf/util/symbol.h
Arnaldo Carvalho de Melo 94cb9e385d perf report: Add debug help for the finding of symbol bugs - show the symtab origin (DSO, build-id, kernel, etc)
Used with perf report --verbose:

[acme@doppio linux-2.6-tip]$ perf report -v | head -16
     5.17%  firefox  /usr/lib64/xulrunner-1.9.1/libxul.so   0x00000000005d8eee f [.] imgContainer::DrawFrameTo(gfxIImageFrame*, gfxIImageFrame*, nsRect&)
     2.56%  firefox  /lib64/libpthread-2.10.1.so            0x0000000000008e02 d [.] __pthread_mutex_lock_internal
     1.94%  firefox  /usr/lib64/xulrunner-1.9.1/libxul.so   0x0000000000d0af8f f [.] SearchTable
     1.75%  firefox  [kernel]                               0xffffffffff60013b k [.] vread_hpet
     1.63%  firefox  /lib64/libpthread-2.10.1.so            0x000000000000a404 d [.] __pthread_mutex_unlock
     1.47%  firefox  /usr/lib64/xulrunner-1.9.1/libmozjs.so 0x00000000000482ea f [.] js_Interpret
     1.42%  firefox  /usr/lib64/xulrunner-1.9.1/libmozjs.so 0x000000000003eda3 f [.] JS_CallTracer
     1.24%  firefox  [kernel]                               0xffffffff8102ca4a k [k] read_hpet
     1.16%  firefox  [kernel]                               0xffffffff810f3dd4 k [k] fget_light
     1.11%  firefox  /usr/lib64/xulrunner-1.9.1/libmozjs.so 0x00000000000567ff f [.] js_TraceObject
     0.98%  firefox  /usr/lib64/firefox-3.5.2/firefox       0x000000000000dd23 b [.] arena_ralloc
[acme@doppio linux-2.6-tip]$

The new field is just after the symbol address. To help in
figuring out symbol resolution bugs.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-09 12:54:36 +02:00

56 lines
1.4 KiB
C

#ifndef _PERF_SYMBOL_
#define _PERF_SYMBOL_ 1
#include <linux/types.h>
#include "types.h"
#include <linux/list.h>
#include <linux/rbtree.h>
#include "module.h"
struct symbol {
struct rb_node rb_node;
u64 start;
u64 end;
u64 obj_start;
u64 hist_sum;
u64 *hist;
struct module *module;
void *priv;
char name[0];
};
struct dso {
struct list_head node;
struct rb_root syms;
struct symbol *(*find_symbol)(struct dso *, u64 ip);
unsigned int sym_priv_size;
unsigned char adjust_symbols;
unsigned char slen_calculated;
unsigned char origin;
char name[0];
};
const char *sym_hist_filter;
typedef int (*symbol_filter_t)(struct dso *self, struct symbol *sym);
struct dso *dso__new(const char *name, unsigned int sym_priv_size);
void dso__delete(struct dso *self);
static inline void *dso__sym_priv(struct dso *self, struct symbol *sym)
{
return ((void *)sym) - self->sym_priv_size;
}
struct symbol *dso__find_symbol(struct dso *self, u64 ip);
int dso__load_kernel(struct dso *self, const char *vmlinux,
symbol_filter_t filter, int verbose, int modules);
int dso__load_modules(struct dso *self, symbol_filter_t filter, int verbose);
int dso__load(struct dso *self, symbol_filter_t filter, int verbose);
size_t dso__fprintf(struct dso *self, FILE *fp);
char dso__symtab_origin(const struct dso *self);
void symbol__init(void);
#endif /* _PERF_SYMBOL_ */