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1 | /* Auxiliary vector support for GDB, the GNU debugger. |
2 | ||
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3 | Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 |
4 | Free Software Foundation, Inc. | |
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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 | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
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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 | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
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20 | |
21 | #ifndef AUXV_H | |
22 | #define AUXV_H | |
23 | ||
24 | /* See "include/elf/common.h" for the definition of valid AT_* values. */ | |
25 | ||
26 | ||
27 | /* Avoid miscellaneous includes in this file, so that it can be | |
28 | included by nm-*.h for the procfs_xfer_auxv decl if that is | |
29 | used in NATIVE_XFER_AUXV. */ | |
30 | struct target_ops; /* Forward declaration. */ | |
31 | ||
32 | ||
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33 | /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR. |
34 | Return 0 if *READPTR is already at the end of the buffer. | |
35 | Return -1 if there is insufficient buffer for a whole entry. | |
36 | Return 1 if an entry was read into *TYPEP and *VALP. */ | |
37 | extern int target_auxv_parse (struct target_ops *ops, | |
36aa5e41 | 38 | gdb_byte **readptr, gdb_byte *endptr, |
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39 | CORE_ADDR *typep, CORE_ADDR *valp); |
40 | ||
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); | |
47 | ||
48 | /* Print the contents of the target's AUXV on the specified file. */ | |
49 | extern int fprint_target_auxv (struct ui_file *file, struct target_ops *ops); | |
50 | ||
51 | ||
52 | /* This function is called like a to_xfer_partial hook, | |
53 | but must be called with TARGET_OBJECT_AUXV. | |
54 | It handles access via /proc/PID/auxv, which is the common method. | |
55 | This function is appropriate for doing: | |
56 | #define NATIVE_XFER_AUXV procfs_xfer_auxv | |
57 | for a native target that uses inftarg.c's child_xfer_partial hook. */ | |
58 | ||
59 | extern LONGEST procfs_xfer_auxv (struct target_ops *ops, | |
60 | int /* enum target_object */ object, | |
61 | const char *annex, | |
36aa5e41 AC |
62 | gdb_byte *readbuf, |
63 | const gdb_byte *writebuf, | |
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64 | ULONGEST offset, |
65 | LONGEST len); | |
66 | ||
67 | ||
68 | #endif |