1/* Auxiliary vector support for GDB, the GNU debugger. 2 3 Copyright (C) 2004, 2005, 2006, 2007 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/* See "include/elf/common.h" for the definition of valid AT_* values. */ 24 25 26/* Avoid miscellaneous includes in this file, so that it can be 27 included by nm-*.h for the procfs_xfer_auxv decl if that is 28 used in NATIVE_XFER_AUXV. */ 29struct target_ops; /* Forward declaration. */ 30 31 32/* Read one auxv entry from *READPTR, not reading locations >= ENDPTR. 33 Return 0 if *READPTR is already at the end of the buffer. 34 Return -1 if there is insufficient buffer for a whole entry. 35 Return 1 if an entry was read into *TYPEP and *VALP. */ 36extern int target_auxv_parse (struct target_ops *ops, 37 gdb_byte **readptr, gdb_byte *endptr, 38 CORE_ADDR *typep, CORE_ADDR *valp); 39 40/* Extract the auxiliary vector entry with a_type matching MATCH. 41 Return zero if no such entry was found, or -1 if there was 42 an error getting the information. On success, return 1 after 43 storing the entry's value field in *VALP. */ 44extern int target_auxv_search (struct target_ops *ops, 45 CORE_ADDR match, CORE_ADDR *valp); 46 47/* Print the contents of the target's AUXV on the specified file. */ 48extern int fprint_target_auxv (struct ui_file *file, struct target_ops *ops); 49 50 51/* This function is called like a to_xfer_partial hook, 52 but must be called with TARGET_OBJECT_AUXV. 53 It handles access via /proc/PID/auxv, which is the common method. 54 This function is appropriate for doing: 55 #define NATIVE_XFER_AUXV procfs_xfer_auxv 56 for a native target that uses inftarg.c's child_xfer_partial hook. */ 57 58extern LONGEST procfs_xfer_auxv (struct target_ops *ops, 59 int /* enum target_object */ object, 60 const char *annex, 61 gdb_byte *readbuf, 62 const gdb_byte *writebuf, 63 ULONGEST offset, 64 LONGEST len); 65 66 67#endif 68