/* Auxiliary vector support for GDB, the GNU debugger.
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/* Auxiliary vector support for GDB, the GNU debugger.
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Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef AUXV_H
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#ifndef AUXV_H
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#define AUXV_H
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#define AUXV_H
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/* See "include/elf/common.h" for the definition of valid AT_* values. */
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/* See "include/elf/common.h" for the definition of valid AT_* values. */
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/* Avoid miscellaneous includes in this file, so that it can be
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/* Avoid miscellaneous includes in this file, so that it can be
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included by nm-*.h for the procfs_xfer_auxv decl if that is
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included by nm-*.h for the procfs_xfer_auxv decl if that is
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used in NATIVE_XFER_AUXV. */
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used in NATIVE_XFER_AUXV. */
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struct target_ops; /* Forward declaration. */
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struct target_ops; /* Forward declaration. */
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/* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
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/* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
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Return 0 if *READPTR is already at the end of the buffer.
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Return 0 if *READPTR is already at the end of the buffer.
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Return -1 if there is insufficient buffer for a whole entry.
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Return -1 if there is insufficient buffer for a whole entry.
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Return 1 if an entry was read into *TYPEP and *VALP. */
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Return 1 if an entry was read into *TYPEP and *VALP. */
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extern int target_auxv_parse (struct target_ops *ops,
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extern int target_auxv_parse (struct target_ops *ops,
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gdb_byte **readptr, gdb_byte *endptr,
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gdb_byte **readptr, gdb_byte *endptr,
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CORE_ADDR *typep, CORE_ADDR *valp);
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CORE_ADDR *typep, CORE_ADDR *valp);
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/* Extract the auxiliary vector entry with a_type matching MATCH.
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/* Extract the auxiliary vector entry with a_type matching MATCH.
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Return zero if no such entry was found, or -1 if there was
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Return zero if no such entry was found, or -1 if there was
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an error getting the information. On success, return 1 after
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an error getting the information. On success, return 1 after
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storing the entry's value field in *VALP. */
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storing the entry's value field in *VALP. */
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extern int target_auxv_search (struct target_ops *ops,
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extern int target_auxv_search (struct target_ops *ops,
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CORE_ADDR match, CORE_ADDR *valp);
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CORE_ADDR match, CORE_ADDR *valp);
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/* Print the contents of the target's AUXV on the specified file. */
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/* Print the contents of the target's AUXV on the specified file. */
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extern int fprint_target_auxv (struct ui_file *file, struct target_ops *ops);
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extern int fprint_target_auxv (struct ui_file *file, struct target_ops *ops);
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/* This function is called like a to_xfer_partial hook,
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/* This function is called like a to_xfer_partial hook,
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but must be called with TARGET_OBJECT_AUXV.
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but must be called with TARGET_OBJECT_AUXV.
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It handles access via /proc/PID/auxv, which is the common method.
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It handles access via /proc/PID/auxv, which is the common method.
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This function is appropriate for doing:
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This function is appropriate for doing:
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#define NATIVE_XFER_AUXV procfs_xfer_auxv
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#define NATIVE_XFER_AUXV procfs_xfer_auxv
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for a native target that uses inftarg.c's child_xfer_partial hook. */
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for a native target that uses inftarg.c's child_xfer_partial hook. */
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extern LONGEST procfs_xfer_auxv (struct target_ops *ops,
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extern LONGEST procfs_xfer_auxv (struct target_ops *ops,
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int /* enum target_object */ object,
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int /* enum target_object */ object,
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const char *annex,
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const char *annex,
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gdb_byte *readbuf,
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gdb_byte *readbuf,
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const gdb_byte *writebuf,
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const gdb_byte *writebuf,
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ULONGEST offset,
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ULONGEST offset,
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LONGEST len);
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LONGEST len);
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#endif
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#endif
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