/* i386 specific core note handling.

   Copyright (C) 2007-2010 Red Hat, Inc.

   This file is part of elfutils.

   This file is free software; you can redistribute it and/or modify

   it under the terms of either

     * the GNU Lesser General Public License as published by the Free

       Software Foundation; either version 3 of the License, or (at

       your option) any later version

   or

     * the GNU General Public License as published by the Free

       Software Foundation; either version 2 of the License, or (at

       your option) any later version

   or both in parallel, as here.

   elfutils 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 copies of the GNU General Public License and

   the GNU Lesser General Public License along with this program.  If

   not, see <http://www.gnu.org/licenses/>.  */

#ifdef HAVE_CONFIG_H

# include <config.h>

#endif

#include <elf.h>

#include <inttypes.h>

#include <stddef.h>

#include <stdio.h>

#include <sys/time.h>

#define BACKEND i386_

#include "libebl_CPU.h"

static const Ebl_Register_Location prstatus_regs[] =

  {

#define GR(at, n, dwreg)            \

    { .offset = at * 4, .regno = dwreg, .count = n, .bits = 32 }

#define SR(at, n, dwreg)            \

    { .offset = at * 4, .regno = dwreg, .count = n, .bits = 16, .pad = 2 }

    GR (0, 1, 3),   /* %ebx */

    GR (1, 2, 1),   /* %ecx-%edx */

    GR (3, 2, 6),   /* %esi-%edi */

    GR (5, 1, 5),   /* %ebp */

    GR (6, 1, 0),   /* %eax */

    SR (7, 1, 43),    /* %ds */

    SR (8, 1, 40),    /* %es */

    SR (9, 1, 44),    /* %fs */

    SR (10, 1, 45),   /* %gs */

    /*  11, 1,         orig_eax */

    GR (12, 1, 8),    /* %eip */

    SR (13, 1, 41),   /* %cs */

    GR (14, 1, 9),    /* eflags */

    GR (15, 1, 4),    /* %esp */

    SR (16, 1, 42),   /* %ss */

#undef  GR

#undef  SR

  };

#define PRSTATUS_REGS_SIZE  (17 * 4)

#define ULONG     uint32_t

#define PID_T     int32_t

#define UID_T     uint16_t

#define GID_T     uint16_t

#define ALIGN_ULONG   4

#define ALIGN_PID_T   4

#define ALIGN_UID_T   2

#define ALIGN_GID_T   2

#define TYPE_ULONG    ELF_T_WORD

#define TYPE_PID_T    ELF_T_SWORD

#define TYPE_UID_T    ELF_T_HALF

#define TYPE_GID_T    ELF_T_HALF

#define PRSTATUS_REGSET_ITEMS                 \

  {                       \

    .name = "orig_eax", .type = ELF_T_SWORD, .format = 'd',         \

    .offset = offsetof (struct EBLHOOK(prstatus), pr_reg) + (4 * 11),       \

    .group = "register"                                 \

  }

static const Ebl_Register_Location fpregset_regs[] =

  {

    { .offset = 0, .regno = 37, .count = 2, .bits = 32 }, /* fctrl-fstat */

    { .offset = 7 * 4, .regno = 11, .count = 8, .bits = 80 }, /* stN */

  };

#define FPREGSET_SIZE 108

static const Ebl_Register_Location prxfpreg_regs[] =

  {

    { .offset = 0, .regno = 37, .count = 2, .bits = 16 }, /* fctrl-fstat */

    { .offset = 24, .regno = 39, .count = 1, .bits = 32 }, /* mxcsr */

    { .offset = 32, .regno = 11, .count = 8, .bits = 80, .pad = 6 }, /* stN */

    { .offset = 32 + 128, .regno = 21, .count = 8, .bits = 128 }, /* xmm */

  };

#define EXTRA_NOTES \

  EXTRA_REGSET (NT_PRXFPREG, 512, prxfpreg_regs) \

  case NT_386_TLS: \

    return tls_info (nhdr->n_descsz, regs_offset, nregloc, reglocs, \

         nitems, items);            \

  EXTRA_NOTES_IOPERM

static const Ebl_Core_Item tls_items[] =

  {

    { .type = ELF_T_WORD, .offset = 0x0, .format = 'd', .name = "index" },

    { .type = ELF_T_WORD, .offset = 0x4, .format = 'x', .name = "base" },

    { .type = ELF_T_WORD, .offset = 0x8, .format = 'x', .name = "limit" },

    { .type = ELF_T_WORD, .offset = 0xc, .format = 'x', .name = "flags" },

  };

static int

tls_info (GElf_Word descsz, GElf_Word *regs_offset,

    size_t *nregloc, const Ebl_Register_Location **reglocs,

    size_t *nitems, const Ebl_Core_Item **items)

{

  if (descsz % 16 != 0)

    return 0;

  *regs_offset = 0;

  *nregloc = 0;

  *reglocs = NULL;

  *nitems = sizeof tls_items / sizeof tls_items[0];

  *items = tls_items;

  return 1;

}

#include "x86_corenote.c"

#include "linux-core-note.c"