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 */ 28 extern const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname); 29 30 /* Get DW_AT_comp_dir (should be NULL with older gcc) */ 31 extern const char *cu_get_comp_dir(Dwarf_Die *cu_die); 32 33 /* Get a line number and file name for given address */ 34 extern int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr, 35 const char **fname, int *lineno); 36 37 /* Walk on funcitons at given address */ 38 extern int 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) */ 42 extern bool die_is_func_def(Dwarf_Die *dw_die); 43 44 /* Compare diename and tname */ 45 extern bool die_compare_name(Dwarf_Die *dw_die, const char *tname); 46 47 /* Get callsite line number of inline-function instance */ 48 extern int die_get_call_lineno(Dwarf_Die *in_die); 49 50 /* Get callsite file name of inlined function instance */ 51 extern const char *die_get_call_file(Dwarf_Die *in_die); 52 53 /* Get type die */ 54 extern Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem); 55 56 /* Get a type die, but skip qualifiers and typedef */ 57 extern Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem); 58 59 /* Check whether the DIE is signed or not */ 60 extern bool die_is_signed_type(Dwarf_Die *tp_die); 61 62 /* Get data_member_location offset */ 63 extern int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs); 64 65 /* Return values for die_find_child() callbacks */ 66 enum { 67 DIE_FIND_CB_END = 0, /* End of Search */ 68 DIE_FIND_CB_CHILD = 1, /* Search only children */ 69 DIE_FIND_CB_SIBLING = 2, /* Search only siblings */ 70 DIE_FIND_CB_CONTINUE = 3, /* Search children and siblings */ 71 }; 72 73 /* Search child DIEs */ 74 extern Dwarf_Die *die_find_child(Dwarf_Die *rt_die, 75 int (*callback)(Dwarf_Die *, void *), 76 void *data, Dwarf_Die *die_mem); 77 78 /* Search a non-inlined function including given address */ 79 extern Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr, 80 Dwarf_Die *die_mem); 81 82 /* Search the top inlined function including given address */ 83 extern Dwarf_Die *die_find_top_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr, 84 Dwarf_Die *die_mem); 85 86 /* Search the deepest inlined function including given address */ 87 extern Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr, 88 Dwarf_Die *die_mem); 89 90 /* Walk on the instances of given DIE */ 91 extern int die_walk_instances(Dwarf_Die *in_die, 92 int (*callback)(Dwarf_Die *, void *), void *data); 93 94 /* Walker on lines (Note: line number will not be sorted) */ 95 typedef int (* line_walk_callback_t) (const char *fname, int lineno, 96 Dwarf_Addr addr, void *data); 97 98 /* 99 * Walk on lines inside given DIE. If the DIE is a subprogram, walk only on 100 * the lines inside the subprogram, otherwise the DIE must be a CU DIE. 101 */ 102 extern int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, 103 void *data); 104 105 /* Find a variable called 'name' at given address */ 106 extern Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name, 107 Dwarf_Addr addr, Dwarf_Die *die_mem); 108 109 /* Find a member called 'name' */ 110 extern Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name, 111 Dwarf_Die *die_mem); 112 113 /* Get the name of given variable DIE */ 114 extern int die_get_typename(Dwarf_Die *vr_die, char *buf, int len); 115 116 /* Get the name and type of given variable DIE, stored as "type\tname" */ 117 extern int die_get_varname(Dwarf_Die *vr_die, char *buf, int len); 118 #endif 119