4 * dwarf-aux.h : libdw auxiliary interfaces
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.
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.
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.
23 #include <elfutils/libdw.h>
24 #include <elfutils/libdwfl.h>
25 #include <elfutils/version.h>
27 /* Find the realpath of the target file */
28 const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname);
30 /* Get DW_AT_comp_dir (should be NULL with older gcc) */
31 const char *cu_get_comp_dir(Dwarf_Die *cu_die);
33 /* Get a line number and file name for given address */
34 int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
35 const char **fname, int *lineno);
37 /* Walk on funcitons at given address */
38 int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr,
39 int (*callback)(Dwarf_Die *, void *), void *data);
41 /* Get DW_AT_linkage_name (should be NULL for C binary) */
42 const char *die_get_linkage_name(Dwarf_Die *dw_die);
44 /* Get the lowest PC in DIE (including range list) */
45 int die_entrypc(Dwarf_Die *dw_die, Dwarf_Addr *addr);
47 /* Ensure that this DIE is a subprogram and definition (not declaration) */
48 bool die_is_func_def(Dwarf_Die *dw_die);
50 /* Ensure that this DIE is an instance of a subprogram */
51 bool die_is_func_instance(Dwarf_Die *dw_die);
53 /* Compare diename and tname */
54 bool die_compare_name(Dwarf_Die *dw_die, const char *tname);
56 /* Matching diename with glob pattern */
57 bool die_match_name(Dwarf_Die *dw_die, const char *glob);
59 /* Get callsite line number of inline-function instance */
60 int die_get_call_lineno(Dwarf_Die *in_die);
62 /* Get callsite file name of inlined function instance */
63 const char *die_get_call_file(Dwarf_Die *in_die);
66 Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
68 /* Get a type die, but skip qualifiers and typedef */
69 Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
71 /* Check whether the DIE is signed or not */
72 bool die_is_signed_type(Dwarf_Die *tp_die);
74 /* Get data_member_location offset */
75 int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs);
77 /* Return values for die_find_child() callbacks */
79 DIE_FIND_CB_END = 0, /* End of Search */
80 DIE_FIND_CB_CHILD = 1, /* Search only children */
81 DIE_FIND_CB_SIBLING = 2, /* Search only siblings */
82 DIE_FIND_CB_CONTINUE = 3, /* Search children and siblings */
85 /* Search child DIEs */
86 Dwarf_Die *die_find_child(Dwarf_Die *rt_die,
87 int (*callback)(Dwarf_Die *, void *),
88 void *data, Dwarf_Die *die_mem);
90 /* Search a non-inlined function including given address */
91 Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
94 /* Search a non-inlined function with tail call at given address */
95 Dwarf_Die *die_find_tailfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
98 /* Search the top inlined function including given address */
99 Dwarf_Die *die_find_top_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
102 /* Search the deepest inlined function including given address */
103 Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
106 /* Walk on the instances of given DIE */
107 int die_walk_instances(Dwarf_Die *in_die,
108 int (*callback)(Dwarf_Die *, void *), void *data);
110 /* Walker on lines (Note: line number will not be sorted) */
111 typedef int (* line_walk_callback_t) (const char *fname, int lineno,
112 Dwarf_Addr addr, void *data);
115 * Walk on lines inside given DIE. If the DIE is a subprogram, walk only on
116 * the lines inside the subprogram, otherwise the DIE must be a CU DIE.
118 int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data);
120 /* Find a variable called 'name' at given address */
121 Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
122 Dwarf_Addr addr, Dwarf_Die *die_mem);
124 /* Find a member called 'name' */
125 Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name,
128 /* Get the name of given variable DIE */
129 int die_get_typename(Dwarf_Die *vr_die, struct strbuf *buf);
131 /* Get the name and type of given variable DIE, stored as "type\tname" */
132 int die_get_varname(Dwarf_Die *vr_die, struct strbuf *buf);
133 int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die, struct strbuf *buf);
135 /* Check if target program is compiled with optimization */
136 bool die_is_optimized_target(Dwarf_Die *cu_die);
138 /* Use next address after prologue as probe location */
139 void die_skip_prologue(Dwarf_Die *sp_die, Dwarf_Die *cu_die,
140 Dwarf_Addr *entrypc);