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