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binutils-gdb/gdb/nat/x86-xstate.h

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x86 nat: Add helper functions to save the XSAVE layout for the host. x86_xsave_length returns the total length of the XSAVE state area standard format as queried from CPUID. x86_fetch_xsave_layout uses CPUID to query the offsets of XSAVE extended regions from the running host. The total length of the XSAVE state area can either be supplied by the caller if known (e.g. from FreeBSD's PT_GETXSTATEINFO) or it can be queried from the running host using x86_xsave_length. Approved-By: Simon Marchi <simon.marchi@efficios.com>
2023-08-29 05:18:19 +08:00
/* x86 XSAVE extended state functions.
Update copyright year range in header of all files managed by GDB 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.
2024-01-12 23:30:44 +08:00
Copyright (C) 2022-2024 Free Software Foundation, Inc.
x86 nat: Add helper functions to save the XSAVE layout for the host. x86_xsave_length returns the total length of the XSAVE state area standard format as queried from CPUID. x86_fetch_xsave_layout uses CPUID to query the offsets of XSAVE extended regions from the running host. The total length of the XSAVE state area can either be supplied by the caller if known (e.g. from FreeBSD's PT_GETXSTATEINFO) or it can be queried from the running host using x86_xsave_length. Approved-By: Simon Marchi <simon.marchi@efficios.com>
2023-08-29 05:18:19 +08:00
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/>. */
#ifndef NAT_X86_XSTATE_H
#define NAT_X86_XSTATE_H
#include "gdbsupport/x86-xstate.h"
/* Return the size of the XSAVE extended state fetched via CPUID. */
int x86_xsave_length ();
/* Return the layout (size and offsets) of the XSAVE extended regions
for the running host. Offsets of each of the enabled regions in
XCR0 are fetched via CPUID. */
x86_xsave_layout x86_fetch_xsave_layout (uint64_t xcr0, int len);
#endif /* NAT_X86_XSTATE_H */
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