mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 03:54:41 +08:00
fc14343205
GDB deprecated the commands "show/set mpx bound" in GDB 15.1, as Intel listed Intel(R) Memory Protection Extensions (MPX) as removed in 2019. MPX is also deprecated in gcc (since v9.1), the linux kernel (since v5.6) and glibc (since v2.35). Let's now remove MPX support in GDB completely. This includes the removal of: - MPX functionality including register support - deprecated mpx commands - i386 and amd64 implementation of the hooks report_signal_info and get_siginfo_type - tests - and pretty printer. We keep MPX register numbers to not break compatibility with old gdbservers. Approved-By: Felix Willgerodt <felix.willgerodt@intel.com>
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/* x86 XSAVE extended state functions.
|
|
|
|
Copyright (C) 2022-2024 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 "gdbsupport/x86-xstate.h"
|
|
#include "nat/x86-cpuid.h"
|
|
#include "nat/x86-xstate.h"
|
|
|
|
/* Fetch the offset of a specific XSAVE extended region. */
|
|
|
|
static int
|
|
xsave_feature_offset (uint64_t xcr0, int feature)
|
|
{
|
|
uint32_t ebx;
|
|
|
|
if ((xcr0 & (1ULL << feature)) == 0)
|
|
return 0;
|
|
|
|
if (!x86_cpuid_count (0xd, feature, nullptr, &ebx, nullptr, nullptr))
|
|
return 0;
|
|
return ebx;
|
|
}
|
|
|
|
/* See x86-xstate.h. */
|
|
|
|
int
|
|
x86_xsave_length ()
|
|
{
|
|
uint32_t ebx;
|
|
|
|
if (!x86_cpuid_count (0xd, 0, nullptr, &ebx, nullptr, nullptr))
|
|
return 0;
|
|
return ebx;
|
|
}
|
|
|
|
/* See x86-xstate.h. */
|
|
|
|
x86_xsave_layout
|
|
x86_fetch_xsave_layout (uint64_t xcr0, int len)
|
|
{
|
|
x86_xsave_layout layout;
|
|
layout.sizeof_xsave = len;
|
|
layout.avx_offset = xsave_feature_offset (xcr0, X86_XSTATE_AVX_ID);
|
|
layout.k_offset = xsave_feature_offset (xcr0, X86_XSTATE_K_ID);
|
|
layout.zmm_h_offset = xsave_feature_offset (xcr0, X86_XSTATE_ZMM_H_ID);
|
|
layout.zmm_offset = xsave_feature_offset (xcr0, X86_XSTATE_ZMM_ID);
|
|
layout.pkru_offset = xsave_feature_offset (xcr0, X86_XSTATE_PKRU_ID);
|
|
return layout;
|
|
}
|