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-/* Memory attributes support, for GDB.
- Copyright 2001 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#ifndef MEMATTR_H
-#define MEMATTR_H
-
-enum mem_access_mode
-{
- MEM_RW, /* read/write */
- MEM_RO, /* read only */
- MEM_WO /* write only */
-};
-
-enum mem_access_width
-{
- MEM_WIDTH_UNSPECIFIED,
- MEM_WIDTH_8, /* 8 bit accesses */
- MEM_WIDTH_16, /* 16 " " */
- MEM_WIDTH_32, /* 32 " " */
- MEM_WIDTH_64 /* 64 " " */
-};
-
-/* The set of all attributes that can be set for a memory region.
-
- This structure was created so that memory attributes can be passed
- to target_ functions without exposing the details of memory region
- list, which would be necessary if these fields were simply added to
- the mem_region structure.
-
- FIXME: It would be useful if there was a mechanism for targets to
- add their own attributes. For example, the number of wait states. */
-
-struct mem_attrib
-{
- /* read/write, read-only, or write-only */
- enum mem_access_mode mode;
-
- enum mem_access_width width;
-
- /* enables hardware breakpoints */
- int hwbreak;
-
- /* enables host-side caching of memory region data */
- int cache;
-
- /* enables memory verification. after a write, memory is re-read
- to verify that the write was successful. */
- int verify;
-};
-
-struct mem_region
-{
- /* FIXME: memory regions are stored in an unsorted singly-linked
- list. This probably won't scale to handle hundreds of memory
- regions --- that many could be needed to describe the allowed
- access modes for memory mapped i/o device registers. */
- struct mem_region *next;
-
- CORE_ADDR lo;
- CORE_ADDR hi;
-
- /* Item number of this memory region. */
- int number;
-
- /* Status of this memory region (enabled if non-zero, otherwise disabled) */
- int enabled_p;
-
- /* Attributes for this region */
- struct mem_attrib attrib;
-};
-
-extern struct mem_region *lookup_mem_region(CORE_ADDR);
-
-#endif /* MEMATTR_H */