/* Auxiliary vector support for GDB, the GNU debugger. Copyright 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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