1 /* Auxiliary vector support for GDB, the GNU debugger.
3 Copyright (C) 2004-2019 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 /* See "include/elf/common.h" for the definition of valid AT_* values. */
27 /* The default implementation of to_auxv_parse, used by the target
30 extern int default_auxv_parse (struct target_ops *ops, gdb_byte **readptr,
31 gdb_byte *endptr, CORE_ADDR *typep,
34 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
35 Return 0 if *READPTR is already at the end of the buffer.
36 Return -1 if there is insufficient buffer for a whole entry.
37 Return 1 if an entry was read into *TYPEP and *VALP. */
38 extern int target_auxv_parse (gdb_byte **readptr, gdb_byte *endptr,
39 CORE_ADDR *typep, CORE_ADDR *valp);
41 /* Extract the auxiliary vector entry with a_type matching MATCH.
42 Return zero if no such entry was found, or -1 if there was
43 an error getting the information. On success, return 1 after
44 storing the entry's value field in *VALP. */
45 extern int target_auxv_search (struct target_ops *ops,
46 CORE_ADDR match, CORE_ADDR *valp);
48 /* Print a description of a single AUXV entry on the specified file. */
49 enum auxv_format { AUXV_FORMAT_DEC, AUXV_FORMAT_HEX, AUXV_FORMAT_STR };
51 extern void fprint_auxv_entry (struct ui_file *file, const char *name,
52 const char *description,
53 enum auxv_format format, CORE_ADDR type,
56 /* The default implementation of gdbarch_print_auxv_entry. */
58 extern void default_print_auxv_entry (struct gdbarch *gdbarch,
59 struct ui_file *file, CORE_ADDR type,
62 /* Print the contents of the target's AUXV on the specified file. */
63 extern int fprint_target_auxv (struct ui_file *file, struct target_ops *ops);
65 extern target_xfer_partial_ftype memory_xfer_auxv;