| /* Auxiliary vector support for GDB, the GNU debugger. |
| |
| Copyright (C) 2004 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #ifndef AUXV_H |
| #define AUXV_H |
| |
| /* See "include/elf/common.h" for the definition of valid AT_* values. */ |
| |
| |
| /* Avoid miscellaneous includes in this file, so that it can be |
| included by nm-*.h for the procfs_xfer_auxv decl if that is |
| used in NATIVE_XFER_AUXV. */ |
| struct target_ops; /* Forward declaration. */ |
| |
| |
| /* Read all the auxv data into a contiguous xmalloc'd buffer, |
| stored in *DATA. Return the size in bytes of this data. |
| If zero, there is no data and *DATA is null. |
| if < 0, there was an error and *DATA is null. */ |
| extern LONGEST target_auxv_read (struct target_ops *ops, gdb_byte **data); |
| |
| /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR. |
| Return 0 if *READPTR is already at the end of the buffer. |
| Return -1 if there is insufficient buffer for a whole entry. |
| Return 1 if an entry was read into *TYPEP and *VALP. */ |
| extern int target_auxv_parse (struct target_ops *ops, |
| gdb_byte **readptr, gdb_byte *endptr, |
| CORE_ADDR *typep, CORE_ADDR *valp); |
| |
| /* Extract the auxiliary vector entry with a_type matching MATCH. |
| Return zero if no such entry was found, or -1 if there was |
| an error getting the information. On success, return 1 after |
| storing the entry's value field in *VALP. */ |
| extern int target_auxv_search (struct target_ops *ops, |
| CORE_ADDR match, CORE_ADDR *valp); |
| |
| /* Print the contents of the target's AUXV on the specified file. */ |
| extern int fprint_target_auxv (struct ui_file *file, struct target_ops *ops); |
| |
| |
| /* This function is called like a to_xfer_partial hook, |
| but must be called with TARGET_OBJECT_AUXV. |
| It handles access via /proc/PID/auxv, which is the common method. |
| This function is appropriate for doing: |
| #define NATIVE_XFER_AUXV procfs_xfer_auxv |
| for a native target that uses inftarg.c's child_xfer_partial hook. */ |
| |
| extern LONGEST procfs_xfer_auxv (struct target_ops *ops, |
| int /* enum target_object */ object, |
| const char *annex, |
| gdb_byte *readbuf, |
| const gdb_byte *writebuf, |
| ULONGEST offset, |
| LONGEST len); |
| |
| |
| #endif |