xref: /dragonfly/contrib/gdb-7/gdb/auxv.h (revision 37de577a)
1 /* Auxiliary vector support for GDB, the GNU debugger.
2 
3    Copyright (C) 2004-2013 Free Software Foundation, Inc.
4 
5    This file is part of GDB.
6 
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.
11 
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.
16 
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/>.  */
19 
20 #ifndef AUXV_H
21 #define AUXV_H
22 
23 #include "target.h"
24 
25 /* See "include/elf/common.h" for the definition of valid AT_* values.  */
26 
27 /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
28    Return 0 if *READPTR is already at the end of the buffer.
29    Return -1 if there is insufficient buffer for a whole entry.
30    Return 1 if an entry was read into *TYPEP and *VALP.  */
31 extern int target_auxv_parse (struct target_ops *ops,
32 			      gdb_byte **readptr, gdb_byte *endptr,
33 			      CORE_ADDR *typep, CORE_ADDR *valp);
34 
35 /* Extract the auxiliary vector entry with a_type matching MATCH.
36    Return zero if no such entry was found, or -1 if there was
37    an error getting the information.  On success, return 1 after
38    storing the entry's value field in *VALP.  */
39 extern int target_auxv_search (struct target_ops *ops,
40 			       CORE_ADDR match, CORE_ADDR *valp);
41 
42 /* Print the contents of the target's AUXV on the specified file.  */
43 extern int fprint_target_auxv (struct ui_file *file, struct target_ops *ops);
44 
45 extern LONGEST memory_xfer_auxv (struct target_ops *ops,
46 				 enum target_object object,
47 				 const char *annex,
48 				 gdb_byte *readbuf,
49 				 const gdb_byte *writebuf,
50 				 ULONGEST offset,
51 				 LONGEST len);
52 
53 
54 #endif
55