Commit e0d153c6 authored by Masami Hiramatsu's avatar Masami Hiramatsu Committed by Steven Rostedt

perf-probe: Move dwarf library routines to dwarf-aux.{c, h}

Move dwarf library related routines to dwarf-aux.{c,h}.
This includes several minor changes.
- Add simple documents for each API.
- Rename die_find_real_subprogram() to die_find_realfunc()
- Rename line_walk_handler_t to line_walk_callback_t.
- Minor cleanups.
Signed-off-by: default avatarMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Link: http://lkml.kernel.org/r/20110627072727.6528.57647.stgit@fedora15Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent bcfc0821
...@@ -279,6 +279,7 @@ LIB_H += util/thread.h ...@@ -279,6 +279,7 @@ LIB_H += util/thread.h
LIB_H += util/thread_map.h LIB_H += util/thread_map.h
LIB_H += util/trace-event.h LIB_H += util/trace-event.h
LIB_H += util/probe-finder.h LIB_H += util/probe-finder.h
LIB_H += util/dwarf-aux.h
LIB_H += util/probe-event.h LIB_H += util/probe-event.h
LIB_H += util/pstack.h LIB_H += util/pstack.h
LIB_H += util/cpumap.h LIB_H += util/cpumap.h
...@@ -435,6 +436,7 @@ else ...@@ -435,6 +436,7 @@ else
BASIC_CFLAGS += -DDWARF_SUPPORT BASIC_CFLAGS += -DDWARF_SUPPORT
EXTLIBS += -lelf -ldw EXTLIBS += -lelf -ldw
LIB_OBJS += $(OUTPUT)util/probe-finder.o LIB_OBJS += $(OUTPUT)util/probe-finder.o
LIB_OBJS += $(OUTPUT)util/dwarf-aux.o
endif # PERF_HAVE_DWARF_REGS endif # PERF_HAVE_DWARF_REGS
endif # NO_DWARF endif # NO_DWARF
......
This diff is collapsed.
#ifndef _DWARF_AUX_H
#define _DWARF_AUX_H
/*
* dwarf-aux.h : libdw auxiliary interfaces
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#include <dwarf.h>
#include <elfutils/libdw.h>
#include <elfutils/libdwfl.h>
#include <elfutils/version.h>
/* Find the realpath of the target file */
extern const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname);
/* Get DW_AT_comp_dir (should be NULL with older gcc) */
extern const char *cu_get_comp_dir(Dwarf_Die *cu_die);
/* Get a line number and file name for given address */
extern int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
const char **fname, int *lineno);
/* Compare diename and tname */
extern bool die_compare_name(Dwarf_Die *dw_die, const char *tname);
/* Get callsite line number of inline-function instance */
extern int die_get_call_lineno(Dwarf_Die *in_die);
/* Get type die */
extern Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
/* Get a type die, but skip qualifiers and typedef */
extern Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
/* Check whether the DIE is signed or not */
extern bool die_is_signed_type(Dwarf_Die *tp_die);
/* Get data_member_location offset */
extern int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs);
/* Return values for die_find_child() callbacks */
enum {
DIE_FIND_CB_END = 0, /* End of Search */
DIE_FIND_CB_CHILD = 1, /* Search only children */
DIE_FIND_CB_SIBLING = 2, /* Search only siblings */
DIE_FIND_CB_CONTINUE = 3, /* Search children and siblings */
};
/* Search child DIEs */
extern Dwarf_Die *die_find_child(Dwarf_Die *rt_die,
int (*callback)(Dwarf_Die *, void *),
void *data, Dwarf_Die *die_mem);
/* Search a non-inlined function including given address */
extern Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
Dwarf_Die *die_mem);
/* Search an inlined function including given address */
extern Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
Dwarf_Die *die_mem);
/* Walker on lines (Note: line number will not be sorted) */
typedef int (* line_walk_callback_t) (const char *fname, int lineno,
Dwarf_Addr addr, void *data);
/*
* Walk on lines inside given DIE. If the DIE is a subprogram, walk only on
* the lines inside the subprogram, otherwise the DIE must be a CU DIE.
*/
extern int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback,
void *data);
/* Find a variable called 'name' at given address */
extern Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
Dwarf_Addr addr, Dwarf_Die *die_mem);
/* Find a member called 'name' */
extern Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name,
Dwarf_Die *die_mem);
/* Get the name of given variable DIE */
extern int die_get_typename(Dwarf_Die *vr_die, char *buf, int len);
/* Get the name and type of given variable DIE, stored as "type\tname" */
extern int die_get_varname(Dwarf_Die *vr_die, char *buf, int len);
#endif
This diff is collapsed.
...@@ -32,11 +32,7 @@ extern int find_line_range(int fd, struct line_range *lr); ...@@ -32,11 +32,7 @@ extern int find_line_range(int fd, struct line_range *lr);
extern int find_available_vars_at(int fd, struct perf_probe_event *pev, extern int find_available_vars_at(int fd, struct perf_probe_event *pev,
struct variable_list **vls, int max_points, struct variable_list **vls, int max_points,
bool externs); bool externs);
#include "dwarf-aux.h"
#include <dwarf.h>
#include <elfutils/libdw.h>
#include <elfutils/libdwfl.h>
#include <elfutils/version.h>
struct probe_finder { struct probe_finder {
struct perf_probe_event *pev; /* Target probe event */ struct perf_probe_event *pev; /* Target probe event */
......
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