1#ifndef _DWARF_AUX_H
  2#define _DWARF_AUX_H
  3/*
  4 * dwarf-aux.h : libdw auxiliary interfaces
  5 *
  6 * This program is free software; you can redistribute it and/or modify
  7 * it under the terms of the GNU General Public License as published by
  8 * the Free Software Foundation; either version 2 of the License, or
  9 * (at your option) any later version.
 10 *
 11 * This program is distributed in the hope that it will be useful,
 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14 * GNU General Public License for more details.
 15 *
 16 * You should have received a copy of the GNU General Public License
 17 * along with this program; if not, write to the Free Software
 18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 19 *
 20 */
 21
 22#include <dwarf.h>
 23#include <elfutils/libdw.h>
 24#include <elfutils/libdwfl.h>
 25#include <elfutils/version.h>
 26
 27/* Find the realpath of the target file */
 28const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname);
 29
 30/* Get DW_AT_comp_dir (should be NULL with older gcc) */
 31const char *cu_get_comp_dir(Dwarf_Die *cu_die);
 32
 33/* Get a line number and file name for given address */
 34int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
 35		     const char **fname, int *lineno);
 36
 37/* Walk on funcitons at given address */
 38int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr,
 39			 int (*callback)(Dwarf_Die *, void *), void *data);
 40
 41/* Get DW_AT_linkage_name (should be NULL for C binary) */
 42const char *die_get_linkage_name(Dwarf_Die *dw_die);
 43
 44/* Ensure that this DIE is a subprogram and definition (not declaration) */
 45bool die_is_func_def(Dwarf_Die *dw_die);
 46
 47/* Ensure that this DIE is an instance of a subprogram */
 48bool die_is_func_instance(Dwarf_Die *dw_die);
 49
 50/* Compare diename and tname */
 51bool die_compare_name(Dwarf_Die *dw_die, const char *tname);
 52
 53/* Matching diename with glob pattern */
 54bool die_match_name(Dwarf_Die *dw_die, const char *glob);
 55
 56/* Get callsite line number of inline-function instance */
 57int die_get_call_lineno(Dwarf_Die *in_die);
 58
 59/* Get callsite file name of inlined function instance */
 60const char *die_get_call_file(Dwarf_Die *in_die);
 61
 62/* Get type die */
 63Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
 64
 65/* Get a type die, but skip qualifiers and typedef */
 66Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
 67
 68/* Check whether the DIE is signed or not */
 69bool die_is_signed_type(Dwarf_Die *tp_die);
 70
 71/* Get data_member_location offset */
 72int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs);
 73
 74/* Return values for die_find_child() callbacks */
 75enum {
 76	DIE_FIND_CB_END = 0,		/* End of Search */
 77	DIE_FIND_CB_CHILD = 1,		/* Search only children */
 78	DIE_FIND_CB_SIBLING = 2,	/* Search only siblings */
 79	DIE_FIND_CB_CONTINUE = 3,	/* Search children and siblings */
 80};
 81
 82/* Search child DIEs */
 83Dwarf_Die *die_find_child(Dwarf_Die *rt_die,
 84			 int (*callback)(Dwarf_Die *, void *),
 85			 void *data, Dwarf_Die *die_mem);
 86
 87/* Search a non-inlined function including given address */
 88Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
 89			     Dwarf_Die *die_mem);
 90
 91/* Search a non-inlined function with tail call at given address */
 92Dwarf_Die *die_find_tailfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
 93				    Dwarf_Die *die_mem);
 94
 95/* Search the top inlined function including given address */
 96Dwarf_Die *die_find_top_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
 97				   Dwarf_Die *die_mem);
 98
 99/* Search the deepest inlined function including given address */
100Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
101			       Dwarf_Die *die_mem);
102
103/* Walk on the instances of given DIE */
104int die_walk_instances(Dwarf_Die *in_die,
105		       int (*callback)(Dwarf_Die *, void *), void *data);
106
107/* Walker on lines (Note: line number will not be sorted) */
108typedef int (* line_walk_callback_t) (const char *fname, int lineno,
109				      Dwarf_Addr addr, void *data);
110
111/*
112 * Walk on lines inside given DIE. If the DIE is a subprogram, walk only on
113 * the lines inside the subprogram, otherwise the DIE must be a CU DIE.
114 */
115int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data);
116
117/* Find a variable called 'name' at given address */
118Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
119				Dwarf_Addr addr, Dwarf_Die *die_mem);
120
121/* Find a member called 'name' */
122Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name,
123			   Dwarf_Die *die_mem);
124
125/* Get the name of given variable DIE */
126int die_get_typename(Dwarf_Die *vr_die, struct strbuf *buf);
127
128/* Get the name and type of given variable DIE, stored as "type\tname" */
129int die_get_varname(Dwarf_Die *vr_die, struct strbuf *buf);
130int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die, struct strbuf *buf);
131
132/* Check if target program is compiled with optimization */
133bool die_is_optimized_target(Dwarf_Die *cu_die);
134
135/* Use next address after prologue as probe location */
136void die_skip_prologue(Dwarf_Die *sp_die, Dwarf_Die *cu_die,
137		       Dwarf_Addr *entrypc);
138
139#endif

  1#ifndef _DWARF_AUX_H
  2#define _DWARF_AUX_H
  3/*
  4 * dwarf-aux.h : libdw auxiliary interfaces
  5 *
  6 * This program is free software; you can redistribute it and/or modify
  7 * it under the terms of the GNU General Public License as published by
  8 * the Free Software Foundation; either version 2 of the License, or
  9 * (at your option) any later version.
 10 *
 11 * This program is distributed in the hope that it will be useful,
 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14 * GNU General Public License for more details.
 15 *
 16 * You should have received a copy of the GNU General Public License
 17 * along with this program; if not, write to the Free Software
 18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 19 *
 20 */
 21
 22#include <dwarf.h>
 23#include <elfutils/libdw.h>
 24#include <elfutils/libdwfl.h>
 25#include <elfutils/version.h>
 26
 27/* Find the realpath of the target file */
 28const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname);
 29
 30/* Get DW_AT_comp_dir (should be NULL with older gcc) */
 31const char *cu_get_comp_dir(Dwarf_Die *cu_die);
 32
 33/* Get a line number and file name for given address */
 34int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
 35		     const char **fname, int *lineno);
 36
 37/* Walk on funcitons at given address */
 38int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr,
 39			 int (*callback)(Dwarf_Die *, void *), void *data);
 40
 
 
 
 41/* Ensure that this DIE is a subprogram and definition (not declaration) */
 42bool die_is_func_def(Dwarf_Die *dw_die);
 43
 44/* Ensure that this DIE is an instance of a subprogram */
 45bool die_is_func_instance(Dwarf_Die *dw_die);
 46
 47/* Compare diename and tname */
 48bool die_compare_name(Dwarf_Die *dw_die, const char *tname);
 49
 50/* Matching diename with glob pattern */
 51bool die_match_name(Dwarf_Die *dw_die, const char *glob);
 52
 53/* Get callsite line number of inline-function instance */
 54int die_get_call_lineno(Dwarf_Die *in_die);
 55
 56/* Get callsite file name of inlined function instance */
 57const char *die_get_call_file(Dwarf_Die *in_die);
 58
 59/* Get type die */
 60Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
 61
 62/* Get a type die, but skip qualifiers and typedef */
 63Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
 64
 65/* Check whether the DIE is signed or not */
 66bool die_is_signed_type(Dwarf_Die *tp_die);
 67
 68/* Get data_member_location offset */
 69int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs);
 70
 71/* Return values for die_find_child() callbacks */
 72enum {
 73	DIE_FIND_CB_END = 0,		/* End of Search */
 74	DIE_FIND_CB_CHILD = 1,		/* Search only children */
 75	DIE_FIND_CB_SIBLING = 2,	/* Search only siblings */
 76	DIE_FIND_CB_CONTINUE = 3,	/* Search children and siblings */
 77};
 78
 79/* Search child DIEs */
 80Dwarf_Die *die_find_child(Dwarf_Die *rt_die,
 81			 int (*callback)(Dwarf_Die *, void *),
 82			 void *data, Dwarf_Die *die_mem);
 83
 84/* Search a non-inlined function including given address */
 85Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
 86			     Dwarf_Die *die_mem);
 87
 88/* Search a non-inlined function with tail call at given address */
 89Dwarf_Die *die_find_tailfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
 90				    Dwarf_Die *die_mem);
 91
 92/* Search the top inlined function including given address */
 93Dwarf_Die *die_find_top_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
 94				   Dwarf_Die *die_mem);
 95
 96/* Search the deepest inlined function including given address */
 97Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
 98			       Dwarf_Die *die_mem);
 99
100/* Walk on the instances of given DIE */
101int die_walk_instances(Dwarf_Die *in_die,
102		       int (*callback)(Dwarf_Die *, void *), void *data);
103
104/* Walker on lines (Note: line number will not be sorted) */
105typedef int (* line_walk_callback_t) (const char *fname, int lineno,
106				      Dwarf_Addr addr, void *data);
107
108/*
109 * Walk on lines inside given DIE. If the DIE is a subprogram, walk only on
110 * the lines inside the subprogram, otherwise the DIE must be a CU DIE.
111 */
112int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data);
113
114/* Find a variable called 'name' at given address */
115Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
116				Dwarf_Addr addr, Dwarf_Die *die_mem);
117
118/* Find a member called 'name' */
119Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name,
120			   Dwarf_Die *die_mem);
121
122/* Get the name of given variable DIE */
123int die_get_typename(Dwarf_Die *vr_die, struct strbuf *buf);
124
125/* Get the name and type of given variable DIE, stored as "type\tname" */
126int die_get_varname(Dwarf_Die *vr_die, struct strbuf *buf);
127int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die, struct strbuf *buf);
 
 
 
 
 
 
 
 
128#endif