1 /* Memory attributes support, for GDB.
3 Copyright (C) 2001, 2006-2012 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
27 MEM_NONE
, /* Memory that is not physically present. */
28 MEM_RW
, /* read/write */
29 MEM_RO
, /* read only */
30 MEM_WO
, /* write only */
32 /* Read/write, but special steps are required to write to it. */
38 MEM_WIDTH_UNSPECIFIED
,
39 MEM_WIDTH_8
, /* 8 bit accesses */
40 MEM_WIDTH_16
, /* 16 " " */
41 MEM_WIDTH_32
, /* 32 " " */
42 MEM_WIDTH_64
/* 64 " " */
45 /* The set of all attributes that can be set for a memory region.
47 This structure was created so that memory attributes can be passed
48 to target_ functions without exposing the details of memory region
49 list, which would be necessary if these fields were simply added to
50 the mem_region structure.
52 FIXME: It would be useful if there was a mechanism for targets to
53 add their own attributes. For example, the number of wait states. */
57 /* read/write, read-only, or write-only */
58 enum mem_access_mode mode
;
60 enum mem_access_width width
;
62 /* enables hardware breakpoints */
65 /* enables host-side caching of memory region data */
68 /* Enables memory verification. After a write, memory is re-read
69 to verify that the write was successful. */
72 /* Block size. Only valid if mode == MEM_FLASH. */
78 /* Lowest address in the region. */
80 /* Address past the highest address of the region.
81 If 0, upper bound is "infinity". */
84 /* Item number of this memory region. */
87 /* Status of this memory region (enabled if non-zero, otherwise
91 /* Attributes for this region. */
92 struct mem_attrib attrib
;
95 /* Declare a vector type for a group of mem_region structures. The
96 typedef is necessary because vec.h can not handle a struct tag.
97 Except during construction, these vectors are kept sorted. */
98 typedef struct mem_region mem_region_s
;
99 DEF_VEC_O(mem_region_s
);
101 extern struct mem_region
*lookup_mem_region(CORE_ADDR
);
103 void invalidate_target_mem_regions (void);
105 void mem_region_init (struct mem_region
*);
107 int mem_region_cmp (const void *, const void *);
109 #endif /* MEMATTR_H */
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