mirror of
https://sourceware.org/git/binutils-gdb.git
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1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
133 lines
3.5 KiB
C
133 lines
3.5 KiB
C
/* Memory attributes support, for GDB.
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Copyright (C) 2001-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef MEMATTR_H
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#define MEMATTR_H
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enum mem_access_mode
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{
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MEM_NONE, /* Memory that is not physically present. */
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MEM_RW, /* read/write */
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MEM_RO, /* read only */
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MEM_WO, /* write only */
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/* Read/write, but special steps are required to write to it. */
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MEM_FLASH
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};
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enum mem_access_width
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{
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MEM_WIDTH_UNSPECIFIED,
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MEM_WIDTH_8, /* 8 bit accesses */
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MEM_WIDTH_16, /* 16 " " */
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MEM_WIDTH_32, /* 32 " " */
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MEM_WIDTH_64 /* 64 " " */
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};
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/* The set of all attributes that can be set for a memory region.
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This structure was created so that memory attributes can be passed
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to target_ functions without exposing the details of memory region
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list, which would be necessary if these fields were simply added to
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the mem_region structure.
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FIXME: It would be useful if there was a mechanism for targets to
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add their own attributes. For example, the number of wait states. */
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struct mem_attrib
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{
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static mem_attrib unknown ()
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{
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mem_attrib attrib;
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attrib.mode = MEM_NONE;
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return attrib;
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}
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/* read/write, read-only, or write-only */
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enum mem_access_mode mode = MEM_RW;
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enum mem_access_width width = MEM_WIDTH_UNSPECIFIED;
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/* enables hardware breakpoints */
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int hwbreak = 0;
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/* enables host-side caching of memory region data */
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int cache = 0;
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/* Enables memory verification. After a write, memory is re-read
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to verify that the write was successful. */
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int verify = 0;
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/* Block size. Only valid if mode == MEM_FLASH. */
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int blocksize = -1;
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};
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struct mem_region
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{
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/* Create a mem_region with default attributes. */
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mem_region (CORE_ADDR lo_, CORE_ADDR hi_)
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: lo (lo_), hi (hi_)
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{}
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/* Create a mem_region with access mode MODE_, but otherwise default
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attributes. */
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mem_region (CORE_ADDR lo_, CORE_ADDR hi_, mem_access_mode mode_)
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: lo (lo_), hi (hi_)
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{
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attrib.mode = mode_;
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}
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/* Create a mem_region with attributes ATTRIB_. */
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mem_region (CORE_ADDR lo_, CORE_ADDR hi_, const mem_attrib &attrib_)
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: lo (lo_), hi (hi_), attrib (attrib_)
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{}
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bool operator< (const mem_region &other) const
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{
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return this->lo < other.lo;
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}
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/* Lowest address in the region. */
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CORE_ADDR lo;
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/* Address past the highest address of the region.
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If 0, upper bound is "infinity". */
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CORE_ADDR hi;
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/* Item number of this memory region. */
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int number = 0;
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/* Status of this memory region (enabled if true, otherwise
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disabled). */
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bool enabled_p = true;
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/* Attributes for this region. */
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mem_attrib attrib;
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};
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extern struct mem_region *lookup_mem_region (CORE_ADDR);
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void invalidate_target_mem_regions (void);
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#endif /* MEMATTR_H */
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