mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
4b5752d02f
* memattr.h (enum mem_access_mode): New value
MEM_NONE.
* memattr.c (unknown_mem_attrib): New.
(inaccessible_by_default): New.
(show_inaccessible_by_default): New.
(lookup_mem_region): Check inaccessible_by_default.
(dummy_cmd): New.
(mem_set_cmdlist, mem_show_cmdlist): New.
(_initialize_mem): Register new "set" and "show"
commands.
* target.c (memory_xfer_partial): If memory type
is MEM_NONE, return an error.
Clip to region size when calling to_xfer_partial.
If upper limit of memory range is 0, don't clip
anything.
gdb/doc/
* gdb.texinfo (Memory Access Checking): New.
111 lines
3.1 KiB
C
111 lines
3.1 KiB
C
/* Memory attributes support, for GDB.
|
|
|
|
Copyright (C) 2001, 2006 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 */
|
|
|
|
/* Read/write, but special steps are required to write to it. */
|
|
MEM_FLASH
|
|
};
|
|
|
|
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;
|
|
|
|
/* Block size. Only valid if mode == MEM_FLASH. */
|
|
int blocksize;
|
|
};
|
|
|
|
struct mem_region
|
|
{
|
|
/* 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 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 */
|