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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [i386nbsd-nat.c] - Diff between revs 105 and 1765

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Rev 105 Rev 1765 
/* Native-dependent code for NetBSD/i386, for GDB.
 
/* Native-dependent code for NetBSD/i386, for GDB.
 
   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000
 
   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000
 
   Free Software Foundation, Inc.
 
   Free Software Foundation, Inc.
 
 
 
 
 
   This file is part of GDB.
 
   This file is part of GDB.
 
 
 
 
 
   This program is free software; you can redistribute it and/or modify
 
   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
 
   it under the terms of the GNU General Public License as published by
 
   the Free Software Foundation; either version 2 of the License, or
 
   the Free Software Foundation; either version 2 of the License, or
 
   (at your option) any later version.
 
   (at your option) any later version.
 
 
 
 
 
   This program is distributed in the hope that it will be useful,
 
   This program is distributed in the hope that it will be useful,
 
   but WITHOUT ANY WARRANTY; without even the implied warranty of
 
   but WITHOUT ANY WARRANTY; without even the implied warranty of
 
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
   GNU General Public License for more details.
 
   GNU General Public License for more details.
 
 
 
 
 
   You should have received a copy of the GNU General Public License
 
   You should have received a copy of the GNU General Public License
 
   along with this program; if not, write to the Free Software
 
   along with this program; if not, write to the Free Software
 
   Foundation, Inc., 59 Temple Place - Suite 330,
 
   Foundation, Inc., 59 Temple Place - Suite 330,
 
   Boston, MA 02111-1307, USA.  */
 
   Boston, MA 02111-1307, USA.  */
 
 
 
 
 
#include "defs.h"
 
#include "defs.h"
 
#include <sys/types.h>
 
#include <sys/types.h>
 
#include <sys/ptrace.h>
 
#include <sys/ptrace.h>
 
#include <machine/reg.h>
 
#include <machine/reg.h>
 
#include <machine/frame.h>
 
#include <machine/frame.h>
 
#include "inferior.h"
 
#include "inferior.h"
 
#include "gdbcore.h" /* for registers_fetched() */
 
#include "gdbcore.h" /* for registers_fetched() */
 
 
 
 
 
#define RF(dst, src) \
 
#define RF(dst, src) \
 
        memcpy(&registers[REGISTER_BYTE(dst)], &src, sizeof(src))
 
        memcpy(&registers[REGISTER_BYTE(dst)], &src, sizeof(src))
 
 
 
 
 
#define RS(src, dst) \
 
#define RS(src, dst) \
 
        memcpy(&dst, &registers[REGISTER_BYTE(src)], sizeof(dst))
 
        memcpy(&dst, &registers[REGISTER_BYTE(src)], sizeof(dst))
 
 
 
 
 
struct env387
 
struct env387
 
  {
 
  {
 
    unsigned short control;
 
    unsigned short control;
 
    unsigned short r0;
 
    unsigned short r0;
 
    unsigned short status;
 
    unsigned short status;
 
    unsigned short r1;
 
    unsigned short r1;
 
    unsigned short tag;
 
    unsigned short tag;
 
    unsigned short r2;
 
    unsigned short r2;
 
    unsigned long eip;
 
    unsigned long eip;
 
    unsigned short code_seg;
 
    unsigned short code_seg;
 
    unsigned short opcode;
 
    unsigned short opcode;
 
    unsigned long operand;
 
    unsigned long operand;
 
    unsigned short operand_seg;
 
    unsigned short operand_seg;
 
    unsigned short r3;
 
    unsigned short r3;
 
    unsigned char regs[8][10];
 
    unsigned char regs[8][10];
 
  };
 
  };
 
 
 
 
 
void
 
void
 
fetch_inferior_registers (regno)
 
fetch_inferior_registers (regno)
 
     int regno;
 
     int regno;
 
{
 
{
 
  struct reg inferior_registers;
 
  struct reg inferior_registers;
 
  struct env387 inferior_fpregisters;
 
  struct env387 inferior_fpregisters;
 
 
 
 
 
  ptrace (PT_GETREGS, inferior_pid,
 
  ptrace (PT_GETREGS, inferior_pid,
 
          (PTRACE_ARG3_TYPE) &inferior_registers, 0);
 
          (PTRACE_ARG3_TYPE) &inferior_registers, 0);
 
  ptrace (PT_GETFPREGS, inferior_pid,
 
  ptrace (PT_GETFPREGS, inferior_pid,
 
          (PTRACE_ARG3_TYPE) &inferior_fpregisters, 0);
 
          (PTRACE_ARG3_TYPE) &inferior_fpregisters, 0);
 
 
 
 
 
  RF ( 0, inferior_registers.r_eax);
 
  RF ( 0, inferior_registers.r_eax);
 
  RF ( 1, inferior_registers.r_ecx);
 
  RF ( 1, inferior_registers.r_ecx);
 
  RF ( 2, inferior_registers.r_edx);
 
  RF ( 2, inferior_registers.r_edx);
 
  RF ( 3, inferior_registers.r_ebx);
 
  RF ( 3, inferior_registers.r_ebx);
 
  RF ( 4, inferior_registers.r_esp);
 
  RF ( 4, inferior_registers.r_esp);
 
  RF ( 5, inferior_registers.r_ebp);
 
  RF ( 5, inferior_registers.r_ebp);
 
  RF ( 6, inferior_registers.r_esi);
 
  RF ( 6, inferior_registers.r_esi);
 
  RF ( 7, inferior_registers.r_edi);
 
  RF ( 7, inferior_registers.r_edi);
 
  RF ( 8, inferior_registers.r_eip);
 
  RF ( 8, inferior_registers.r_eip);
 
  RF ( 9, inferior_registers.r_eflags);
 
  RF ( 9, inferior_registers.r_eflags);
 
  RF (10, inferior_registers.r_cs);
 
  RF (10, inferior_registers.r_cs);
 
  RF (11, inferior_registers.r_ss);
 
  RF (11, inferior_registers.r_ss);
 
  RF (12, inferior_registers.r_ds);
 
  RF (12, inferior_registers.r_ds);
 
  RF (13, inferior_registers.r_es);
 
  RF (13, inferior_registers.r_es);
 
  RF (14, inferior_registers.r_fs);
 
  RF (14, inferior_registers.r_fs);
 
  RF (15, inferior_registers.r_gs);
 
  RF (15, inferior_registers.r_gs);
 
 
 
 
 
  RF (FP0_REGNUM,     inferior_fpregisters.regs[0]);
 
  RF (FP0_REGNUM,     inferior_fpregisters.regs[0]);
 
  RF (FP0_REGNUM + 1, inferior_fpregisters.regs[1]);
 
  RF (FP0_REGNUM + 1, inferior_fpregisters.regs[1]);
 
  RF (FP0_REGNUM + 2, inferior_fpregisters.regs[2]);
 
  RF (FP0_REGNUM + 2, inferior_fpregisters.regs[2]);
 
  RF (FP0_REGNUM + 3, inferior_fpregisters.regs[3]);
 
  RF (FP0_REGNUM + 3, inferior_fpregisters.regs[3]);
 
  RF (FP0_REGNUM + 4, inferior_fpregisters.regs[4]);
 
  RF (FP0_REGNUM + 4, inferior_fpregisters.regs[4]);
 
  RF (FP0_REGNUM + 5, inferior_fpregisters.regs[5]);
 
  RF (FP0_REGNUM + 5, inferior_fpregisters.regs[5]);
 
  RF (FP0_REGNUM + 6, inferior_fpregisters.regs[6]);
 
  RF (FP0_REGNUM + 6, inferior_fpregisters.regs[6]);
 
  RF (FP0_REGNUM + 7, inferior_fpregisters.regs[7]);
 
  RF (FP0_REGNUM + 7, inferior_fpregisters.regs[7]);
 
 
 
 
 
  RF (FCTRL_REGNUM,   inferior_fpregisters.control);
 
  RF (FCTRL_REGNUM,   inferior_fpregisters.control);
 
  RF (FSTAT_REGNUM,   inferior_fpregisters.status);
 
  RF (FSTAT_REGNUM,   inferior_fpregisters.status);
 
  RF (FTAG_REGNUM,    inferior_fpregisters.tag);
 
  RF (FTAG_REGNUM,    inferior_fpregisters.tag);
 
  RF (FCS_REGNUM,     inferior_fpregisters.code_seg);
 
  RF (FCS_REGNUM,     inferior_fpregisters.code_seg);
 
  RF (FCOFF_REGNUM,   inferior_fpregisters.eip);
 
  RF (FCOFF_REGNUM,   inferior_fpregisters.eip);
 
  RF (FDS_REGNUM,     inferior_fpregisters.operand_seg);
 
  RF (FDS_REGNUM,     inferior_fpregisters.operand_seg);
 
  RF (FDOFF_REGNUM,   inferior_fpregisters.operand);
 
  RF (FDOFF_REGNUM,   inferior_fpregisters.operand);
 
  RF (FOP_REGNUM,     inferior_fpregisters.opcode);
 
  RF (FOP_REGNUM,     inferior_fpregisters.opcode);
 
 
 
 
 
  registers_fetched ();
 
  registers_fetched ();
 
}
 
}
 
 
 
 
 
void
 
void
 
store_inferior_registers (regno)
 
store_inferior_registers (regno)
 
     int regno;
 
     int regno;
 
{
 
{
 
  struct reg inferior_registers;
 
  struct reg inferior_registers;
 
  struct env387 inferior_fpregisters;
 
  struct env387 inferior_fpregisters;
 
 
 
 
 
  RS ( 0, inferior_registers.r_eax);
 
  RS ( 0, inferior_registers.r_eax);
 
  RS ( 1, inferior_registers.r_ecx);
 
  RS ( 1, inferior_registers.r_ecx);
 
  RS ( 2, inferior_registers.r_edx);
 
  RS ( 2, inferior_registers.r_edx);
 
  RS ( 3, inferior_registers.r_ebx);
 
  RS ( 3, inferior_registers.r_ebx);
 
  RS ( 4, inferior_registers.r_esp);
 
  RS ( 4, inferior_registers.r_esp);
 
  RS ( 5, inferior_registers.r_ebp);
 
  RS ( 5, inferior_registers.r_ebp);
 
  RS ( 6, inferior_registers.r_esi);
 
  RS ( 6, inferior_registers.r_esi);
 
  RS ( 7, inferior_registers.r_edi);
 
  RS ( 7, inferior_registers.r_edi);
 
  RS ( 8, inferior_registers.r_eip);
 
  RS ( 8, inferior_registers.r_eip);
 
  RS ( 9, inferior_registers.r_eflags);
 
  RS ( 9, inferior_registers.r_eflags);
 
  RS (10, inferior_registers.r_cs);
 
  RS (10, inferior_registers.r_cs);
 
  RS (11, inferior_registers.r_ss);
 
  RS (11, inferior_registers.r_ss);
 
  RS (12, inferior_registers.r_ds);
 
  RS (12, inferior_registers.r_ds);
 
  RS (13, inferior_registers.r_es);
 
  RS (13, inferior_registers.r_es);
 
  RS (14, inferior_registers.r_fs);
 
  RS (14, inferior_registers.r_fs);
 
  RS (15, inferior_registers.r_gs);
 
  RS (15, inferior_registers.r_gs);
 
 
 
 
 
 
 
 
 
  RS (FP0_REGNUM,     inferior_fpregisters.regs[0]);
 
  RS (FP0_REGNUM,     inferior_fpregisters.regs[0]);
 
  RS (FP0_REGNUM + 1, inferior_fpregisters.regs[1]);
 
  RS (FP0_REGNUM + 1, inferior_fpregisters.regs[1]);
 
  RS (FP0_REGNUM + 2, inferior_fpregisters.regs[2]);
 
  RS (FP0_REGNUM + 2, inferior_fpregisters.regs[2]);
 
  RS (FP0_REGNUM + 3, inferior_fpregisters.regs[3]);
 
  RS (FP0_REGNUM + 3, inferior_fpregisters.regs[3]);
 
  RS (FP0_REGNUM + 4, inferior_fpregisters.regs[4]);
 
  RS (FP0_REGNUM + 4, inferior_fpregisters.regs[4]);
 
  RS (FP0_REGNUM + 5, inferior_fpregisters.regs[5]);
 
  RS (FP0_REGNUM + 5, inferior_fpregisters.regs[5]);
 
  RS (FP0_REGNUM + 6, inferior_fpregisters.regs[6]);
 
  RS (FP0_REGNUM + 6, inferior_fpregisters.regs[6]);
 
  RS (FP0_REGNUM + 7, inferior_fpregisters.regs[7]);
 
  RS (FP0_REGNUM + 7, inferior_fpregisters.regs[7]);
 
 
 
 
 
  RS (FCTRL_REGNUM,   inferior_fpregisters.control);
 
  RS (FCTRL_REGNUM,   inferior_fpregisters.control);
 
  RS (FSTAT_REGNUM,   inferior_fpregisters.status);
 
  RS (FSTAT_REGNUM,   inferior_fpregisters.status);
 
  RS (FTAG_REGNUM,    inferior_fpregisters.tag);
 
  RS (FTAG_REGNUM,    inferior_fpregisters.tag);
 
  RS (FCS_REGNUM,     inferior_fpregisters.code_seg);
 
  RS (FCS_REGNUM,     inferior_fpregisters.code_seg);
 
  RS (FCOFF_REGNUM,   inferior_fpregisters.eip);
 
  RS (FCOFF_REGNUM,   inferior_fpregisters.eip);
 
  RS (FDS_REGNUM,     inferior_fpregisters.operand_seg);
 
  RS (FDS_REGNUM,     inferior_fpregisters.operand_seg);
 
  RS (FDOFF_REGNUM,   inferior_fpregisters.operand);
 
  RS (FDOFF_REGNUM,   inferior_fpregisters.operand);
 
  RS (FOP_REGNUM,     inferior_fpregisters.opcode);
 
  RS (FOP_REGNUM,     inferior_fpregisters.opcode);
 
 
 
 
 
  ptrace (PT_SETREGS, inferior_pid,
 
  ptrace (PT_SETREGS, inferior_pid,
 
          (PTRACE_ARG3_TYPE) &inferior_registers, 0);
 
          (PTRACE_ARG3_TYPE) &inferior_registers, 0);
 
  ptrace (PT_SETFPREGS, inferior_pid,
 
  ptrace (PT_SETFPREGS, inferior_pid,
 
          (PTRACE_ARG3_TYPE) &inferior_fpregisters, 0);
 
          (PTRACE_ARG3_TYPE) &inferior_fpregisters, 0);
 
}
 
}
 


int
 
int
 
i386nbsd_use_struct_convention (int gcc_p, struct type *type)
 
i386nbsd_use_struct_convention (int gcc_p, struct type *type)
 
{
 
{
 
  return !(TYPE_LENGTH (type) == 1
 
  return !(TYPE_LENGTH (type) == 1
 
           || TYPE_LENGTH (type) == 2
 
           || TYPE_LENGTH (type) == 2
 
           || TYPE_LENGTH (type) == 4
 
           || TYPE_LENGTH (type) == 4
 
           || TYPE_LENGTH (type) == 8);
 
           || TYPE_LENGTH (type) == 8);
 
}
 
}
 


struct md_core
 
struct md_core
 
{
 
{
 
  struct reg intreg;
 
  struct reg intreg;
 
  struct env387 freg;
 
  struct env387 freg;
 
};
 
};
 
 
 
 
 
static void
 
static void
 
fetch_core_registers (core_reg_sect, core_reg_size, which, ignore)
 
fetch_core_registers (core_reg_sect, core_reg_size, which, ignore)
 
     char *core_reg_sect;
 
     char *core_reg_sect;
 
     unsigned core_reg_size;
 
     unsigned core_reg_size;
 
     int which;
 
     int which;
 
     CORE_ADDR ignore;
 
     CORE_ADDR ignore;
 
{
 
{
 
  struct md_core *core_reg = (struct md_core *) core_reg_sect;
 
  struct md_core *core_reg = (struct md_core *) core_reg_sect;
 
 
 
 
 
  /* integer registers */
 
  /* integer registers */
 
  memcpy (&registers[REGISTER_BYTE (0)], &core_reg->intreg,
 
  memcpy (&registers[REGISTER_BYTE (0)], &core_reg->intreg,
 
          sizeof (struct reg));
 
          sizeof (struct reg));
 
 
 
 
 
  /* floating point registers */
 
  /* floating point registers */
 
  RF (FP0_REGNUM,     core_reg->freg.regs[0]);
 
  RF (FP0_REGNUM,     core_reg->freg.regs[0]);
 
  RF (FP0_REGNUM + 1, core_reg->freg.regs[1]);
 
  RF (FP0_REGNUM + 1, core_reg->freg.regs[1]);
 
  RF (FP0_REGNUM + 2, core_reg->freg.regs[2]);
 
  RF (FP0_REGNUM + 2, core_reg->freg.regs[2]);
 
  RF (FP0_REGNUM + 3, core_reg->freg.regs[3]);
 
  RF (FP0_REGNUM + 3, core_reg->freg.regs[3]);
 
  RF (FP0_REGNUM + 4, core_reg->freg.regs[4]);
 
  RF (FP0_REGNUM + 4, core_reg->freg.regs[4]);
 
  RF (FP0_REGNUM + 5, core_reg->freg.regs[5]);
 
  RF (FP0_REGNUM + 5, core_reg->freg.regs[5]);
 
  RF (FP0_REGNUM + 6, core_reg->freg.regs[6]);
 
  RF (FP0_REGNUM + 6, core_reg->freg.regs[6]);
 
  RF (FP0_REGNUM + 7, core_reg->freg.regs[7]);
 
  RF (FP0_REGNUM + 7, core_reg->freg.regs[7]);
 
 
 
 
 
  RF (FCTRL_REGNUM,   core_reg->freg.control);
 
  RF (FCTRL_REGNUM,   core_reg->freg.control);
 
  RF (FSTAT_REGNUM,   core_reg->freg.status);
 
  RF (FSTAT_REGNUM,   core_reg->freg.status);
 
  RF (FTAG_REGNUM,    core_reg->freg.tag);
 
  RF (FTAG_REGNUM,    core_reg->freg.tag);
 
  RF (FCS_REGNUM,     core_reg->freg.code_seg);
 
  RF (FCS_REGNUM,     core_reg->freg.code_seg);
 
  RF (FCOFF_REGNUM,   core_reg->freg.eip);
 
  RF (FCOFF_REGNUM,   core_reg->freg.eip);
 
  RF (FDS_REGNUM,     core_reg->freg.operand_seg);
 
  RF (FDS_REGNUM,     core_reg->freg.operand_seg);
 
  RF (FDOFF_REGNUM,   core_reg->freg.operand);
 
  RF (FDOFF_REGNUM,   core_reg->freg.operand);
 
  RF (FOP_REGNUM,     core_reg->freg.opcode);
 
  RF (FOP_REGNUM,     core_reg->freg.opcode);
 
 
 
 
 
  registers_fetched ();
 
  registers_fetched ();
 
}
 
}
 
 
 
 
 
/* Register that we are able to handle i386nbsd core file formats.
 
/* Register that we are able to handle i386nbsd core file formats.
 
   FIXME: is this really bfd_target_unknown_flavour? */
 
   FIXME: is this really bfd_target_unknown_flavour? */
 
 
 
 
 
static struct core_fns i386nbsd_core_fns =
 
static struct core_fns i386nbsd_core_fns =
 
{
 
{
 
  bfd_target_unknown_flavour,           /* core_flavour */
 
  bfd_target_unknown_flavour,           /* core_flavour */
 
  default_check_format,                 /* check_format */
 
  default_check_format,                 /* check_format */
 
  default_core_sniffer,                 /* core_sniffer */
 
  default_core_sniffer,                 /* core_sniffer */
 
  fetch_core_registers,                 /* core_read_registers */
 
  fetch_core_registers,                 /* core_read_registers */
 
  NULL                                  /* next */
 
  NULL                                  /* next */
 
};
 
};
 
 
 
 
 
void
 
void
 
_initialize_i386nbsd_nat ()
 
_initialize_i386nbsd_nat ()
 
{
 
{
 
  add_core_fns (&i386nbsd_core_fns);
 
  add_core_fns (&i386nbsd_core_fns);
 
}
 
}
 
 
 
 

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