2017-09-05 10:54:53 +02:00
|
|
|
/* GNU/Linux/x86-64 specific target description, for the remote server
|
|
|
|
for GDB.
|
|
|
|
Copyright (C) 2017 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 "server.h"
|
|
|
|
#include "tdesc.h"
|
|
|
|
#include "linux-x86-tdesc.h"
|
2017-09-05 10:54:53 +02:00
|
|
|
#include "arch/i386.h"
|
|
|
|
#include "common/x86-xstate.h"
|
2017-09-05 10:54:53 +02:00
|
|
|
|
|
|
|
static struct target_desc *i386_tdescs[X86_TDESC_LAST] = { };
|
|
|
|
|
|
|
|
#if defined __i386__ || !defined IN_PROCESS_AGENT
|
|
|
|
|
|
|
|
/* Return the target description according to XCR0. */
|
|
|
|
|
|
|
|
const struct target_desc *
|
|
|
|
i386_linux_read_description (uint64_t xcr0)
|
|
|
|
{
|
|
|
|
struct target_desc **tdesc = NULL;
|
|
|
|
|
|
|
|
if (xcr0 & X86_XSTATE_PKRU)
|
|
|
|
tdesc = &i386_tdescs[X86_TDESC_AVX_MPX_AVX512_PKU];
|
|
|
|
else if (xcr0 & X86_XSTATE_AVX512)
|
|
|
|
tdesc = &i386_tdescs[X86_TDESC_AVX_AVX512];
|
|
|
|
else if ((xcr0 & X86_XSTATE_AVX_MPX_MASK) == X86_XSTATE_AVX_MPX_MASK)
|
|
|
|
tdesc = &i386_tdescs[X86_TDESC_AVX_MPX];
|
|
|
|
else if (xcr0 & X86_XSTATE_MPX)
|
|
|
|
tdesc = &i386_tdescs[X86_TDESC_MPX];
|
|
|
|
else if (xcr0 & X86_XSTATE_AVX)
|
|
|
|
tdesc = &i386_tdescs[X86_TDESC_AVX];
|
|
|
|
else if (xcr0 & X86_XSTATE_SSE)
|
|
|
|
tdesc = &i386_tdescs[X86_TDESC_SSE];
|
|
|
|
else if (xcr0 & X86_XSTATE_X87)
|
|
|
|
tdesc = &i386_tdescs[X86_TDESC_MMX];
|
|
|
|
|
|
|
|
if (tdesc == NULL)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
if (*tdesc == NULL)
|
|
|
|
{
|
2017-09-05 10:54:53 +02:00
|
|
|
*tdesc = i386_create_target_description (xcr0);
|
2017-09-05 10:54:53 +02:00
|
|
|
|
|
|
|
init_target_desc (*tdesc);
|
|
|
|
|
|
|
|
#ifndef IN_PROCESS_AGENT
|
|
|
|
static const char *expedite_regs_i386[] = { "ebp", "esp", "eip", NULL };
|
|
|
|
(*tdesc)->expedite_regs = expedite_regs_i386;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
return *tdesc;;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef IN_PROCESS_AGENT
|
|
|
|
int
|
|
|
|
i386_get_ipa_tdesc_idx (const struct target_desc *tdesc)
|
|
|
|
{
|
|
|
|
for (int i = 0; i < X86_TDESC_LAST; i++)
|
|
|
|
{
|
|
|
|
if (tdesc == i386_tdescs[i])
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If none tdesc is found, return the one with minimum features. */
|
|
|
|
return X86_TDESC_MMX;
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|