old-cross-binutils/gdb/auxv.h
Daniel Jacobowitz 13547ab600 * target.c (target_read): Stop if target_read_partial returns 0
when some bytes have already been read.
	(target_write): Likewise for target_write_partial.
	(target_read_partial, target_write_partial): Make static.
	(target_read_alloc): New.
	* target.h: Doc fixes.
	(target_read_partial, target_write_partial): Delete prototypes.
	(target_read_alloc): New prototype.

	* auxv.c (target_auxv_read): Delete.
	(target_auxv_search, fprint_target_auxv): Use target_read_alloc.
	* auxv.h (target_auxv_read): Delete prototype.
	* avr-tdep.c (avr_io_reg_read_command): Use target_read_alloc.
	* ia64-tdep.c (getunwind_table, get_kernel_table): Likewise.
	* linux-nat.c (linux_nat_make_corefile_notes): Likewise.
	* procfs.c (procfs_make_note_section): Likewise.
	* remote.c (remote_xfer_partial): Don't loop here.
	* sparc-tdep.c (sparc_fetch_wcookie): Use target_read.
2006-07-12 18:13:45 +00:00

69 lines
2.6 KiB
C

/* Auxiliary vector support for GDB, the GNU debugger.
Copyright (C) 2004, 2005, 2006 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 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