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/* Native-dependent code for Solaris x86.

   Copyright (C) 2004, 2007, 2008, 2009, 2010 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 "regcache.h"

#include <sys/procfs.h>

#include "gregset.h"

#include "target.h"

#include "procfs.h"

/* This file provids the (temporary) glue between the Solaris x86

   target dependent code and the machine independent SVR4 /proc

   support.  */

/* Solaris 10 (Solaris 2.10, SunOS 5.10) and up support two process

   data models, the traditional 32-bit data model (ILP32) and the

   64-bit data model (LP64).  The format of /proc depends on the data

   model of the observer (the controlling process, GDB in our case).

   The Solaris header files conveniently define PR_MODEL_NATIVE to the

   data model of the controlling process.  If its value is

   PR_MODEL_LP64, we know that GDB is being compiled as a 64-bit

   program.

   Note that a 32-bit GDB won't be able to debug a 64-bit target

   process using /proc on Solaris.  */

#if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)

#include "amd64-nat.h"

#include "amd64-tdep.h"

/* Mapping between the general-purpose registers in gregset_t format

   and GDB's register cache layout.  */

/* From <sys/regset.h>.  */

static int amd64_sol2_gregset64_reg_offset[] = {

  14 * 8,                       /* %rax */

  11 * 8,                       /* %rbx */

  13 * 8,                       /* %rcx */

  12 * 8,                       /* %rdx */

  9 * 8,                        /* %rsi */

  8 * 8,                        /* %rdi */

  10 * 8,                       /* %rbp */

  20 * 8,                       /* %rsp */

  7 * 8,                        /* %r8 ... */

  6 * 8,

  5 * 8,

  4 * 8,

  3 * 8,

  2 * 8,

  1 * 8,

  17 * 8,                       /* %rip */

  16 * 8,                       /* %eflags */

  18 * 8,                       /* %cs */

  21 * 8,                       /* %ss */

  25 * 8,                       /* %ds */

  24 * 8,                       /* %es */

  22 * 8,                       /* %fs */

  23 * 8                        /* %gs */

};

/* 32-bit registers are provided by Solaris in 64-bit format, so just

   give a subset of the list above.  */

static int amd64_sol2_gregset32_reg_offset[] = {

  14 * 8,                       /* %eax */

  13 * 8,                       /* %ecx */

  12 * 8,                       /* %edx */

  11 * 8,                       /* %ebx */

  20 * 8,                       /* %esp */

  10 * 8,                       /* %ebp */

  9 * 8,                        /* %esi */

  8 * 8,                        /* %edi */

  17 * 8,                       /* %eip */

  16 * 8,                       /* %eflags */

  18 * 8,                       /* %cs */

  21 * 8,                       /* %ss */

  25 * 8,                       /* %ds */

  24 * 8,                       /* %es */

  22 * 8,                       /* %fs */

  23 * 8                        /* %gs */

};

void

supply_gregset (struct regcache *regcache, const prgregset_t *gregs)

{

  amd64_supply_native_gregset (regcache, gregs, -1);

}

void

supply_fpregset (struct regcache *regcache, const prfpregset_t *fpregs)

{

  amd64_supply_fxsave (regcache, -1, fpregs);

}

void

fill_gregset (const struct regcache *regcache,

              prgregset_t *gregs, int regnum)

{

  amd64_collect_native_gregset (regcache, gregs, regnum);

}

void

fill_fpregset (const struct regcache *regcache,

               prfpregset_t *fpregs, int regnum)

{

  amd64_collect_fxsave (regcache, regnum, fpregs);

}

#else

/* For 32-bit Solaris x86, we use the Unix SVR4 code in i386v4-nat.c.  */

#endif

/* Provide a prototype to silence -Wmissing-prototypes.  */

extern void _initialize_amd64_sol2_nat (void);

void

_initialize_amd64_sol2_nat (void)

{

  struct target_ops *t;

  /* Fill in the generic procfs methods.  */

  t = procfs_target ();

#ifdef NEW_PROC_API     /* Solaris 6 and above can do HW watchpoints */

  procfs_use_watchpoints (t);

#endif

#if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)

  amd64_native_gregset32_reg_offset = amd64_sol2_gregset32_reg_offset;

  amd64_native_gregset32_num_regs =

    ARRAY_SIZE (amd64_sol2_gregset32_reg_offset);

  amd64_native_gregset64_reg_offset = amd64_sol2_gregset64_reg_offset;

  amd64_native_gregset64_num_regs =

    ARRAY_SIZE (amd64_sol2_gregset64_reg_offset);

#endif

  add_target (t);

}