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1 | /* Auxiliary vector support for GDB, the GNU debugger. |
2 | ||
6aba47ca | 3 | Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
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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 2 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, write to the Free Software | |
197e01b6 EZ |
19 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
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21 | |
22 | #ifndef AUXV_H | |
23 | #define AUXV_H | |
24 | ||
25 | /* See "include/elf/common.h" for the definition of valid AT_* values. */ | |
26 | ||
27 | ||
28 | /* Avoid miscellaneous includes in this file, so that it can be | |
29 | included by nm-*.h for the procfs_xfer_auxv decl if that is | |
30 | used in NATIVE_XFER_AUXV. */ | |
31 | struct target_ops; /* Forward declaration. */ | |
32 | ||
33 | ||
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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 (struct target_ops *ops, | |
36aa5e41 | 39 | gdb_byte **readptr, gdb_byte *endptr, |
14ed0a8b RM |
40 | CORE_ADDR *typep, CORE_ADDR *valp); |
41 | ||
42 | /* Extract the auxiliary vector entry with a_type matching MATCH. | |
43 | Return zero if no such entry was found, or -1 if there was | |
44 | an error getting the information. On success, return 1 after | |
45 | storing the entry's value field in *VALP. */ | |
46 | extern int target_auxv_search (struct target_ops *ops, | |
47 | CORE_ADDR match, CORE_ADDR *valp); | |
48 | ||
49 | /* Print the contents of the target's AUXV on the specified file. */ | |
50 | extern int fprint_target_auxv (struct ui_file *file, struct target_ops *ops); | |
51 | ||
52 | ||
53 | /* This function is called like a to_xfer_partial hook, | |
54 | but must be called with TARGET_OBJECT_AUXV. | |
55 | It handles access via /proc/PID/auxv, which is the common method. | |
56 | This function is appropriate for doing: | |
57 | #define NATIVE_XFER_AUXV procfs_xfer_auxv | |
58 | for a native target that uses inftarg.c's child_xfer_partial hook. */ | |
59 | ||
60 | extern LONGEST procfs_xfer_auxv (struct target_ops *ops, | |
61 | int /* enum target_object */ object, | |
62 | const char *annex, | |
36aa5e41 AC |
63 | gdb_byte *readbuf, |
64 | const gdb_byte *writebuf, | |
14ed0a8b RM |
65 | ULONGEST offset, |
66 | LONGEST len); | |
67 | ||
68 | ||
69 | #endif |