2007-06-29 Paul Brook <paul@codesourcery.com>

[deliverable/binutils-gdb.git] / gdb / memattr.h

diff --git a/gdb/memattr.h b/gdb/memattr.h
index 75b5f781c1dbafd9deaa629c6cd7dbe14631c195..c2fbff4a89325475fe3641211f8f0b6145331be9 100644 (file)
--- a/gdb/memattr.h
+++ b/gdb/memattr.h
@@ -1,12 +1,38 @@
-/* memattr.h */
+/* Memory attributes support, for GDB.
+
+   Copyright (C) 2001, 2006, 2007 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 MEMATTR_H
 #define MEMATTR_H
 
+#include "vec.h"
+
 enum mem_access_mode
 {
+  MEM_NONE,                     /* Memory that is not physically present. */
   MEM_RW,                      /* read/write */
   MEM_RO,                      /* read only */
-  MEM_WO                       /* write only */
+  MEM_WO,                      /* write only */
+
+  /* Read/write, but special steps are required to write to it.  */
+  MEM_FLASH
 };
 
 enum mem_access_width
@@ -44,29 +70,41 @@ struct mem_attrib
   /* enables memory verification.  after a write, memory is re-read
      to verify that the write was successful. */
   int verify; 
+
+  /* Block size.  Only valid if mode == MEM_FLASH.  */
+  int blocksize;
 };
 
 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;
-  
+  /* Lowest address in the region.  */
   CORE_ADDR lo;
+  /* Address past the highest address of the region. 
+     If 0, upper bound is "infinity".  */
   CORE_ADDR hi;
 
   /* Item number of this memory region. */
   int number;
 
-  /* Status of this memory region (enabled or disabled) */
-  int status;
+  /* Status of this memory region (enabled if non-zero, otherwise disabled) */
+  int enabled_p;
 
   /* Attributes for this region */
   struct mem_attrib attrib;
 };
 
+/* Declare a vector type for a group of mem_region structures.  The
+   typedef is necessary because vec.h can not handle a struct tag.
+   Except during construction, these vectors are kept sorted.  */
+typedef struct mem_region mem_region_s;
+DEF_VEC_O(mem_region_s);
+
 extern struct mem_region *lookup_mem_region(CORE_ADDR);
 
+void invalidate_target_mem_regions (void);
+
+void mem_region_init (struct mem_region *);
+
+int mem_region_cmp (const void *, const void *);
+
 #endif /* MEMATTR_H */