mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-19 07:13:40 +08:00
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
|
/* GDB generic memory tagging functions.
|
||
|
|
|
||
|
|
Copyright (C) 2022 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 3 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, see <http://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#include "defs.h"
|
||
|
|
#include "memtag.h"
|
||
|
|
#include "bfd.h"
|
||
|
|
|
||
|
|
/* See memtag.h */
|
||
|
|
|
||
|
|
bool
|
||
|
|
get_next_core_memtag_section (bfd *abfd, asection *section,
|
||
|
|
CORE_ADDR address, memtag_section_info &info)
|
||
|
|
{
|
||
|
|
/* If the caller provided no SECTION to start from, search from the
|
||
|
|
beginning. */
|
||
|
|
if (section == nullptr)
|
||
|
|
section = bfd_get_section_by_name (abfd, "memtag");
|
||
|
|
|
||
|
|
/* Go through all the memtag sections and figure out if ADDRESS
|
||
|
|
falls within one of the memory ranges that contain tags. */
|
||
|
|
while (section != nullptr)
|
||
|
|
{
|
||
|
|
size_t memtag_range_size = section->rawsize;
|
||
|
|
size_t tags_size = bfd_section_size (section);
|
||
|
|
|
||
|
|
/* Empty memory range or empty tag dump should not happen. Warn about
|
||
|
|
it but keep going through the sections. */
|
||
|
|
if (memtag_range_size == 0 || tags_size == 0)
|
||
|
|
{
|
||
|
|
warning (_("Found memtag section with empty memory "
|
||
|
|
"range or empty tag dump"));
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
CORE_ADDR start_address = bfd_section_vma (section);
|
||
|
|
CORE_ADDR end_address = start_address + memtag_range_size;
|
||
|
|
|
||
|
|
/* Is the address within [start_address, end_address)? */
|
||
|
|
if (address >= start_address
|
||
|
|
&& address < end_address)
|
||
|
|
{
|
||
|
|
info.start_address = start_address;
|
||
|
|
info.end_address = end_address;
|
||
|
|
info.memtag_section = section;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
section = bfd_get_next_section_by_name (abfd, section);
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|