| 1 | /* Auxiliary vector support for GDB, the GNU debugger. |
| 2 | |
| 3 | Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 |
| 4 | Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of GDB. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | #ifndef AUXV_H |
| 22 | #define AUXV_H |
| 23 | |
| 24 | #include "target.h" |
| 25 | |
| 26 | /* See "include/elf/common.h" for the definition of valid AT_* values. */ |
| 27 | |
| 28 | /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR. |
| 29 | Return 0 if *READPTR is already at the end of the buffer. |
| 30 | Return -1 if there is insufficient buffer for a whole entry. |
| 31 | Return 1 if an entry was read into *TYPEP and *VALP. */ |
| 32 | extern int target_auxv_parse (struct target_ops *ops, |
| 33 | gdb_byte **readptr, gdb_byte *endptr, |
| 34 | CORE_ADDR *typep, CORE_ADDR *valp); |
| 35 | |
| 36 | /* Extract the auxiliary vector entry with a_type matching MATCH. |
| 37 | Return zero if no such entry was found, or -1 if there was |
| 38 | an error getting the information. On success, return 1 after |
| 39 | storing the entry's value field in *VALP. */ |
| 40 | extern int target_auxv_search (struct target_ops *ops, |
| 41 | CORE_ADDR match, CORE_ADDR *valp); |
| 42 | |
| 43 | /* Print the contents of the target's AUXV on the specified file. */ |
| 44 | extern int fprint_target_auxv (struct ui_file *file, struct target_ops *ops); |
| 45 | |
| 46 | /* This function is called like a to_xfer_partial hook, but must be |
| 47 | called with TARGET_OBJECT_AUXV. It handles access via |
| 48 | /proc/PID/auxv, which is a common method for native targets. */ |
| 49 | |
| 50 | extern LONGEST procfs_xfer_auxv (struct target_ops *ops, |
| 51 | enum target_object object, |
| 52 | const char *annex, |
| 53 | gdb_byte *readbuf, |
| 54 | const gdb_byte *writebuf, |
| 55 | ULONGEST offset, |
| 56 | LONGEST len); |
| 57 | |
| 58 | |
| 59 | #endif |