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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [gdb/] [user-regs.h] - Blame information for rev 227

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1 227 jeremybenn
/* Per-frame user registers, for GDB, the GNU debugger.
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   Copyright (C) 2002, 2003, 2007, 2008, 2009, 2010
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   Free Software Foundation, Inc.
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   Contributed by Red Hat.
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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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   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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   (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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   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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   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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   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
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#ifndef USER_REGS_H
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#define USER_REGS_H
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/* Implement both builtin, and architecture specific, per-frame user
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   visible registers.
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   Builtin registers apply to all architectures, where as architecture
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   specific registers are present when the architecture is selected.
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   These registers are assigned register numbers outside the
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   architecture's register range
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   [0 .. gdbarch_num_regs + gdbarch_num_pseudo_regs].
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   Their values should be constructed using per-frame information.  */
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/* TODO: cagney/2003-06-27: Need to think more about how these
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   registers are added, read, and modified.  At present they are kind
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   of assumed to be read-only.  Should it, for instance, return a
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   register descriptor that contains all the relvent access methods.  */
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struct frame_info;
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struct gdbarch;
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/* Given an architecture, map a user visible register name onto its
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   index.  */
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extern int user_reg_map_name_to_regnum (struct gdbarch *gdbarch,
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                                        const char *str, int len);
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extern const char *user_reg_map_regnum_to_name (struct gdbarch *gdbarch,
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                                                int regnum);
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/* Return the value of the frame register in the specified frame.
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   Note; These methods return a "struct value" instead of the raw
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   bytes as, at the time the register is being added, the type needed
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   to describe the register has not bee initialized.  */
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typedef struct value *(user_reg_read_ftype) (struct frame_info *frame,
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                                             const void *baton);
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extern struct value *value_of_user_reg (int regnum, struct frame_info *frame);
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/* Add a builtin register (present in all architectures).  */
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extern void user_reg_add_builtin (const char *name,
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                                  user_reg_read_ftype *read, const void *baton);
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/* Add a per-architecture frame register.  */
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extern void user_reg_add (struct gdbarch *gdbarch, const char *name,
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                          user_reg_read_ftype *read, const void *baton);
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#endif

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