/* Memory attributes support, for GDB.
- Copyright (C) 2001, 2006, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2001-2019 Free Software Foundation, Inc.
This file is part of GDB.
#ifndef MEMATTR_H
#define MEMATTR_H
-#include "vec.h"
-
enum mem_access_mode
{
- MEM_NONE, /* Memory that is not physically present. */
+ MEM_NONE, /* Memory that is not physically present. */
MEM_RW, /* read/write */
MEM_RO, /* read only */
MEM_WO, /* write only */
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. */
+ add their own attributes. For example, the number of wait states. */
struct mem_attrib
{
+ static mem_attrib unknown ()
+ {
+ mem_attrib attrib;
+
+ attrib.mode = MEM_NONE;
+
+ return attrib;
+ }
+
/* read/write, read-only, or write-only */
- enum mem_access_mode mode;
+ enum mem_access_mode mode = MEM_RW;
- enum mem_access_width width;
+ enum mem_access_width width = MEM_WIDTH_UNSPECIFIED;
/* enables hardware breakpoints */
- int hwbreak;
+ int hwbreak = 0;
/* enables host-side caching of memory region data */
- int cache;
+ int cache = 0;
- /* enables memory verification. after a write, memory is re-read
- to verify that the write was successful. */
- int verify;
+ /* Enables memory verification. After a write, memory is re-read
+ to verify that the write was successful. */
+ int verify = 0;
/* Block size. Only valid if mode == MEM_FLASH. */
- int blocksize;
+ int blocksize = -1;
};
struct mem_region
{
+ /* Create a mem_region with default attributes. */
+
+ mem_region (CORE_ADDR lo_, CORE_ADDR hi_)
+ : lo (lo_), hi (hi_)
+ {}
+
+ /* Create a mem_region with access mode MODE_, but otherwise default
+ attributes. */
+
+ mem_region (CORE_ADDR lo_, CORE_ADDR hi_, mem_access_mode mode_)
+ : lo (lo_), hi (hi_)
+ {
+ attrib.mode = mode_;
+ }
+
+ /* Create a mem_region with attributes ATTRIB_. */
+
+ mem_region (CORE_ADDR lo_, CORE_ADDR hi_, const mem_attrib &attrib_)
+ : lo (lo_), hi (hi_), attrib (attrib_)
+ {}
+
+ bool operator< (const mem_region &other) const
+ {
+ return this->lo < other.lo;
+ }
+
/* 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;
+ /* Item number of this memory region. */
+ int number = 0;
- /* Status of this memory region (enabled if non-zero, otherwise disabled) */
- int enabled_p;
+ /* Status of this memory region (enabled if true, otherwise
+ disabled). */
+ bool enabled_p = true;
- /* Attributes for this region */
- struct mem_attrib attrib;
+ /* Attributes for this region. */
+ 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);
+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 */