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e0d153c6 MH |
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 */ | |
3938bad4 | 28 | const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname); |
e0d153c6 MH |
29 | |
30 | /* Get DW_AT_comp_dir (should be NULL with older gcc) */ | |
3938bad4 | 31 | const char *cu_get_comp_dir(Dwarf_Die *cu_die); |
e0d153c6 MH |
32 | |
33 | /* Get a line number and file name for given address */ | |
3938bad4 ACM |
34 | int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr, |
35 | const char **fname, int *lineno); | |
e0d153c6 | 36 | |
221d0611 | 37 | /* Walk on funcitons at given address */ |
3938bad4 ACM |
38 | int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr, |
39 | int (*callback)(Dwarf_Die *, void *), void *data); | |
221d0611 | 40 | |
d5a00296 MH |
41 | /* Get DW_AT_linkage_name (should be NULL for C binary) */ |
42 | const char *die_get_linkage_name(Dwarf_Die *dw_die); | |
43 | ||
0dbb1cac | 44 | /* Ensure that this DIE is a subprogram and definition (not declaration) */ |
3938bad4 | 45 | bool die_is_func_def(Dwarf_Die *dw_die); |
0dbb1cac | 46 | |
e1ecbbc3 | 47 | /* Ensure that this DIE is an instance of a subprogram */ |
3938bad4 | 48 | bool die_is_func_instance(Dwarf_Die *dw_die); |
e1ecbbc3 | 49 | |
e0d153c6 | 50 | /* Compare diename and tname */ |
3938bad4 | 51 | bool die_compare_name(Dwarf_Die *dw_die, const char *tname); |
e0d153c6 | 52 | |
4c859351 | 53 | /* Matching diename with glob pattern */ |
3938bad4 | 54 | bool die_match_name(Dwarf_Die *dw_die, const char *glob); |
4c859351 | 55 | |
e0d153c6 | 56 | /* Get callsite line number of inline-function instance */ |
3938bad4 | 57 | int die_get_call_lineno(Dwarf_Die *in_die); |
e0d153c6 | 58 | |
b0e9cb28 | 59 | /* Get callsite file name of inlined function instance */ |
3938bad4 | 60 | const char *die_get_call_file(Dwarf_Die *in_die); |
b0e9cb28 | 61 | |
e0d153c6 | 62 | /* Get type die */ |
3938bad4 | 63 | Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem); |
e0d153c6 MH |
64 | |
65 | /* Get a type die, but skip qualifiers and typedef */ | |
3938bad4 | 66 | Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem); |
e0d153c6 MH |
67 | |
68 | /* Check whether the DIE is signed or not */ | |
3938bad4 | 69 | bool die_is_signed_type(Dwarf_Die *tp_die); |
e0d153c6 MH |
70 | |
71 | /* Get data_member_location offset */ | |
3938bad4 | 72 | int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs); |
e0d153c6 MH |
73 | |
74 | /* Return values for die_find_child() callbacks */ | |
75 | enum { | |
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 */ | |
3938bad4 ACM |
83 | Dwarf_Die *die_find_child(Dwarf_Die *rt_die, |
84 | int (*callback)(Dwarf_Die *, void *), | |
85 | void *data, Dwarf_Die *die_mem); | |
e0d153c6 MH |
86 | |
87 | /* Search a non-inlined function including given address */ | |
3938bad4 ACM |
88 | Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr, |
89 | Dwarf_Die *die_mem); | |
e0d153c6 | 90 | |
d4c537e6 NR |
91 | /* Search a non-inlined function with tail call at given address */ |
92 | Dwarf_Die *die_find_tailfunc(Dwarf_Die *cu_die, Dwarf_Addr addr, | |
93 | Dwarf_Die *die_mem); | |
94 | ||
e08cfd4b | 95 | /* Search the top inlined function including given address */ |
3938bad4 ACM |
96 | Dwarf_Die *die_find_top_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr, |
97 | Dwarf_Die *die_mem); | |
e08cfd4b MH |
98 | |
99 | /* Search the deepest inlined function including given address */ | |
3938bad4 ACM |
100 | Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr, |
101 | Dwarf_Die *die_mem); | |
e0d153c6 | 102 | |
db0d2c64 | 103 | /* Walk on the instances of given DIE */ |
3938bad4 ACM |
104 | int die_walk_instances(Dwarf_Die *in_die, |
105 | int (*callback)(Dwarf_Die *, void *), void *data); | |
db0d2c64 | 106 | |
e0d153c6 MH |
107 | /* Walker on lines (Note: line number will not be sorted) */ |
108 | typedef 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 | */ | |
3938bad4 | 115 | int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data); |
e0d153c6 MH |
116 | |
117 | /* Find a variable called 'name' at given address */ | |
3938bad4 ACM |
118 | Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name, |
119 | Dwarf_Addr addr, Dwarf_Die *die_mem); | |
e0d153c6 MH |
120 | |
121 | /* Find a member called 'name' */ | |
3938bad4 ACM |
122 | Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name, |
123 | Dwarf_Die *die_mem); | |
e0d153c6 MH |
124 | |
125 | /* Get the name of given variable DIE */ | |
3938bad4 | 126 | int die_get_typename(Dwarf_Die *vr_die, struct strbuf *buf); |
e0d153c6 MH |
127 | |
128 | /* Get the name and type of given variable DIE, stored as "type\tname" */ | |
3938bad4 ACM |
129 | int die_get_varname(Dwarf_Die *vr_die, struct strbuf *buf); |
130 | int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die, struct strbuf *buf); | |
6243b9dc RB |
131 | |
132 | /* Check if target program is compiled with optimization */ | |
133 | bool die_is_optimized_target(Dwarf_Die *cu_die); | |
134 | ||
135 | /* Use next address after prologue as probe location */ | |
136 | void die_skip_prologue(Dwarf_Die *sp_die, Dwarf_Die *cu_die, | |
137 | Dwarf_Addr *entrypc); | |
138 | ||
e0d153c6 | 139 | #endif |