1 /* Memory attributes support, for GDB.
2 Copyright 2001 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
26 MEM_RW
, /* read/write */
27 MEM_RO
, /* read only */
28 MEM_WO
/* write only */
33 MEM_WIDTH_UNSPECIFIED
,
34 MEM_WIDTH_8
, /* 8 bit accesses */
35 MEM_WIDTH_16
, /* 16 " " */
36 MEM_WIDTH_32
, /* 32 " " */
37 MEM_WIDTH_64
/* 64 " " */
40 /* The set of all attributes that can be set for a memory region.
42 This structure was created so that memory attributes can be passed
43 to target_ functions without exposing the details of memory region
44 list, which would be necessary if these fields were simply added to
45 the mem_region structure.
47 FIXME: It would be useful if there was a mechanism for targets to
48 add their own attributes. For example, the number of wait states. */
52 /* read/write, read-only, or write-only */
53 enum mem_access_mode mode
;
55 enum mem_access_width width
;
57 /* enables hardware breakpoints */
60 /* enables host-side caching of memory region data */
63 /* enables memory verification. after a write, memory is re-read
64 to verify that the write was successful. */
70 /* FIXME: memory regions are stored in an unsorted singly-linked
71 list. This probably won't scale to handle hundreds of memory
72 regions --- that many could be needed to describe the allowed
73 access modes for memory mapped i/o device registers. */
74 struct mem_region
*next
;
79 /* Item number of this memory region. */
82 /* Status of this memory region (enabled if non-zero, otherwise disabled) */
85 /* Attributes for this region */
86 struct mem_attrib attrib
;
89 extern struct mem_region
*lookup_mem_region(CORE_ADDR
);
91 #endif /* MEMATTR_H */
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