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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [i386m3-nat.c] - Diff between revs 105 and 1765

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/* Low level interface to I386 running mach 3.0.
/* Low level interface to I386 running mach 3.0.
   Copyright (C) 1992 Free Software Foundation, Inc.
   Copyright (C) 1992 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 "inferior.h"
#include "inferior.h"
#include "floatformat.h"
#include "floatformat.h"
 
 
#include <stdio.h>
#include <stdio.h>
 
 
#include <mach.h>
#include <mach.h>
#include <mach/message.h>
#include <mach/message.h>
#include <mach/exception.h>
#include <mach/exception.h>
#include <mach_error.h>
#include <mach_error.h>
 
 
/* Hmmm... Should this not be here?
/* Hmmm... Should this not be here?
 * Now for i386_float_info() target_has_execution
 * Now for i386_float_info() target_has_execution
 */
 */
#include <target.h>
#include <target.h>
 
 
/* This mess is duplicated in bfd/i386mach3.h
/* This mess is duplicated in bfd/i386mach3.h
 
 
 * This is an ugly way to hack around the incorrect
 * This is an ugly way to hack around the incorrect
 * definition of UPAGES in i386/machparam.h.
 * definition of UPAGES in i386/machparam.h.
 *
 *
 * The definition should specify the size reserved
 * The definition should specify the size reserved
 * for "struct user" in core files in PAGES,
 * for "struct user" in core files in PAGES,
 * but instead it gives it in 512-byte core-clicks
 * but instead it gives it in 512-byte core-clicks
 * for i386 and i860.
 * for i386 and i860.
 */
 */
#include <sys/param.h>
#include <sys/param.h>
#if UPAGES == 16
#if UPAGES == 16
#define UAREA_SIZE ctob(UPAGES)
#define UAREA_SIZE ctob(UPAGES)
#elif UPAGES == 2
#elif UPAGES == 2
#define UAREA_SIZE (NBPG*UPAGES)
#define UAREA_SIZE (NBPG*UPAGES)
#else
#else
FIXME ! !UPAGES is neither 2 nor 16
FIXME ! !UPAGES is neither 2 nor 16
#endif
#endif
 
 
/* @@@ Should move print_387_status() to i387-tdep.c */
/* @@@ Should move print_387_status() to i387-tdep.c */
extern void print_387_control_word ();          /* i387-tdep.h */
extern void print_387_control_word ();          /* i387-tdep.h */
extern void print_387_status_word ();
extern void print_387_status_word ();
 
 
#define private static
#define private static


 
 
/* Find offsets to thread states at compile time.
/* Find offsets to thread states at compile time.
 * If your compiler does not grok this, calculate offsets
 * If your compiler does not grok this, calculate offsets
 * offsets yourself and use them (or get a compatible compiler :-)
 * offsets yourself and use them (or get a compatible compiler :-)
 */
 */
 
 
#define  REG_OFFSET(reg) (int)(&((struct i386_thread_state *)0)->reg)
#define  REG_OFFSET(reg) (int)(&((struct i386_thread_state *)0)->reg)
 
 
/* at reg_offset[i] is the offset to the i386_thread_state
/* at reg_offset[i] is the offset to the i386_thread_state
 * location where the gdb registers[i] is stored.
 * location where the gdb registers[i] is stored.
 */
 */
 
 
static int reg_offset[] =
static int reg_offset[] =
{
{
  REG_OFFSET (eax), REG_OFFSET (ecx), REG_OFFSET (edx), REG_OFFSET (ebx),
  REG_OFFSET (eax), REG_OFFSET (ecx), REG_OFFSET (edx), REG_OFFSET (ebx),
  REG_OFFSET (uesp), REG_OFFSET (ebp), REG_OFFSET (esi), REG_OFFSET (edi),
  REG_OFFSET (uesp), REG_OFFSET (ebp), REG_OFFSET (esi), REG_OFFSET (edi),
  REG_OFFSET (eip), REG_OFFSET (efl), REG_OFFSET (cs), REG_OFFSET (ss),
  REG_OFFSET (eip), REG_OFFSET (efl), REG_OFFSET (cs), REG_OFFSET (ss),
  REG_OFFSET (ds), REG_OFFSET (es), REG_OFFSET (fs), REG_OFFSET (gs)
  REG_OFFSET (ds), REG_OFFSET (es), REG_OFFSET (fs), REG_OFFSET (gs)
};
};
 
 
#define REG_ADDRESS(state,regnum) ((char *)(state)+reg_offset[regnum])
#define REG_ADDRESS(state,regnum) ((char *)(state)+reg_offset[regnum])
 
 
/* Fetch COUNT contiguous registers from thread STATE starting from REGNUM
/* Fetch COUNT contiguous registers from thread STATE starting from REGNUM
 * Caller knows that the regs handled in one transaction are of same size.
 * Caller knows that the regs handled in one transaction are of same size.
 */
 */
#define FETCH_REGS(state, regnum, count) \
#define FETCH_REGS(state, regnum, count) \
  memcpy (&registers[REGISTER_BYTE (regnum)], \
  memcpy (&registers[REGISTER_BYTE (regnum)], \
          REG_ADDRESS (state, regnum), \
          REG_ADDRESS (state, regnum), \
          count*REGISTER_SIZE)
          count*REGISTER_SIZE)
 
 
/* Store COUNT contiguous registers to thread STATE starting from REGNUM */
/* Store COUNT contiguous registers to thread STATE starting from REGNUM */
#define STORE_REGS(state, regnum, count) \
#define STORE_REGS(state, regnum, count) \
  memcpy (REG_ADDRESS (state, regnum), \
  memcpy (REG_ADDRESS (state, regnum), \
          &registers[REGISTER_BYTE (regnum)], \
          &registers[REGISTER_BYTE (regnum)], \
          count*REGISTER_SIZE)
          count*REGISTER_SIZE)


/*
/*
 * Fetch inferiors registers for gdb.
 * Fetch inferiors registers for gdb.
 * REGNO specifies which (as gdb views it) register, -1 for all.
 * REGNO specifies which (as gdb views it) register, -1 for all.
 */
 */
 
 
void
void
fetch_inferior_registers (regno)
fetch_inferior_registers (regno)
     int regno;
     int regno;
{
{
  kern_return_t ret;
  kern_return_t ret;
  thread_state_data_t state;
  thread_state_data_t state;
  unsigned int stateCnt = i386_THREAD_STATE_COUNT;
  unsigned int stateCnt = i386_THREAD_STATE_COUNT;
  int index;
  int index;
 
 
  if (!MACH_PORT_VALID (current_thread))
  if (!MACH_PORT_VALID (current_thread))
    error ("fetch inferior registers: Invalid thread");
    error ("fetch inferior registers: Invalid thread");
 
 
  if (must_suspend_thread)
  if (must_suspend_thread)
    setup_thread (current_thread, 1);
    setup_thread (current_thread, 1);
 
 
  ret = thread_get_state (current_thread,
  ret = thread_get_state (current_thread,
                          i386_THREAD_STATE,
                          i386_THREAD_STATE,
                          state,
                          state,
                          &stateCnt);
                          &stateCnt);
 
 
  if (ret != KERN_SUCCESS)
  if (ret != KERN_SUCCESS)
    warning ("fetch_inferior_registers: %s ",
    warning ("fetch_inferior_registers: %s ",
             mach_error_string (ret));
             mach_error_string (ret));
#if 0
#if 0
  /* It may be more effective to store validate all of them,
  /* It may be more effective to store validate all of them,
   * since we fetched them all anyway
   * since we fetched them all anyway
   */
   */
  else if (regno != -1)
  else if (regno != -1)
    supply_register (regno, (char *) state + reg_offset[regno]);
    supply_register (regno, (char *) state + reg_offset[regno]);
#endif
#endif
  else
  else
    {
    {
      for (index = 0; index < NUM_REGS; index++)
      for (index = 0; index < NUM_REGS; index++)
        supply_register (index, (char *) state + reg_offset[index]);
        supply_register (index, (char *) state + reg_offset[index]);
    }
    }
 
 
  if (must_suspend_thread)
  if (must_suspend_thread)
    setup_thread (current_thread, 0);
    setup_thread (current_thread, 0);
}
}


/* Store our register values back into the inferior.
/* Store our register values back into the inferior.
 * If REGNO is -1, do this for all registers.
 * If REGNO is -1, do this for all registers.
 * Otherwise, REGNO specifies which register
 * Otherwise, REGNO specifies which register
 *
 *
 * On mach3 all registers are always saved in one call.
 * On mach3 all registers are always saved in one call.
 */
 */
void
void
store_inferior_registers (regno)
store_inferior_registers (regno)
     int regno;
     int regno;
{
{
  kern_return_t ret;
  kern_return_t ret;
  thread_state_data_t state;
  thread_state_data_t state;
  unsigned int stateCnt = i386_THREAD_STATE_COUNT;
  unsigned int stateCnt = i386_THREAD_STATE_COUNT;
  register int index;
  register int index;
 
 
  if (!MACH_PORT_VALID (current_thread))
  if (!MACH_PORT_VALID (current_thread))
    error ("store inferior registers: Invalid thread");
    error ("store inferior registers: Invalid thread");
 
 
  if (must_suspend_thread)
  if (must_suspend_thread)
    setup_thread (current_thread, 1);
    setup_thread (current_thread, 1);
 
 
  /* Fetch the state of the current thread */
  /* Fetch the state of the current thread */
  ret = thread_get_state (current_thread,
  ret = thread_get_state (current_thread,
                          i386_THREAD_STATE,
                          i386_THREAD_STATE,
                          state,
                          state,
                          &stateCnt);
                          &stateCnt);
 
 
  if (ret != KERN_SUCCESS)
  if (ret != KERN_SUCCESS)
    {
    {
      warning ("store_inferior_registers (get): %s",
      warning ("store_inferior_registers (get): %s",
               mach_error_string (ret));
               mach_error_string (ret));
      if (must_suspend_thread)
      if (must_suspend_thread)
        setup_thread (current_thread, 0);
        setup_thread (current_thread, 0);
      return;
      return;
    }
    }
 
 
  /* move gdb's registers to thread's state
  /* move gdb's registers to thread's state
 
 
   * Since we save all registers anyway, save the ones
   * Since we save all registers anyway, save the ones
   * that gdb thinks are valid (e.g. ignore the regno
   * that gdb thinks are valid (e.g. ignore the regno
   * parameter)
   * parameter)
   */
   */
#if 0
#if 0
  if (regno != -1)
  if (regno != -1)
    STORE_REGS (state, regno, 1);
    STORE_REGS (state, regno, 1);
  else
  else
#endif
#endif
    {
    {
      for (index = 0; index < NUM_REGS; index++)
      for (index = 0; index < NUM_REGS; index++)
        STORE_REGS (state, index, 1);
        STORE_REGS (state, index, 1);
    }
    }
 
 
  /* Write gdb's current view of register to the thread
  /* Write gdb's current view of register to the thread
   */
   */
  ret = thread_set_state (current_thread,
  ret = thread_set_state (current_thread,
                          i386_THREAD_STATE,
                          i386_THREAD_STATE,
                          state,
                          state,
                          i386_THREAD_STATE_COUNT);
                          i386_THREAD_STATE_COUNT);
 
 
  if (ret != KERN_SUCCESS)
  if (ret != KERN_SUCCESS)
    warning ("store_inferior_registers (set): %s",
    warning ("store_inferior_registers (set): %s",
             mach_error_string (ret));
             mach_error_string (ret));
 
 
  if (must_suspend_thread)
  if (must_suspend_thread)
    setup_thread (current_thread, 0);
    setup_thread (current_thread, 0);
}
}


 
 
 
 
/* Return the address in the core dump or inferior of register REGNO.
/* Return the address in the core dump or inferior of register REGNO.
 * BLOCKEND should be the address of the end of the UPAGES area read
 * BLOCKEND should be the address of the end of the UPAGES area read
 * in memory, but it's not?
 * in memory, but it's not?
 *
 *
 * Currently our UX server dumps the whole thread state to the
 * Currently our UX server dumps the whole thread state to the
 * core file. If your UX does something else, adapt the routine
 * core file. If your UX does something else, adapt the routine
 * below to return the offset to the given register.
 * below to return the offset to the given register.
 *
 *
 * Called by core-aout.c(fetch_core_registers)
 * Called by core-aout.c(fetch_core_registers)
 */
 */
 
 
CORE_ADDR
CORE_ADDR
register_addr (regno, blockend)
register_addr (regno, blockend)
     int regno;
     int regno;
     CORE_ADDR blockend;
     CORE_ADDR blockend;
{
{
  CORE_ADDR addr;
  CORE_ADDR addr;
 
 
  if (regno < 0 || regno >= NUM_REGS)
  if (regno < 0 || regno >= NUM_REGS)
    error ("Invalid register number %d.", regno);
    error ("Invalid register number %d.", regno);
 
 
  /* UAREA_SIZE == 8 kB in i386 */
  /* UAREA_SIZE == 8 kB in i386 */
  addr = (unsigned int) REG_ADDRESS (UAREA_SIZE - sizeof (struct i386_thread_state), regno);
  addr = (unsigned int) REG_ADDRESS (UAREA_SIZE - sizeof (struct i386_thread_state), regno);
 
 
  return addr;
  return addr;
}
}
 
 
/* jtv@hut.fi: I copied and modified this 387 code from
/* jtv@hut.fi: I copied and modified this 387 code from
 * gdb/i386-xdep.c. Modifications for Mach 3.0.
 * gdb/i386-xdep.c. Modifications for Mach 3.0.
 *
 *
 * i387 status dumper. See also i387-tdep.c
 * i387 status dumper. See also i387-tdep.c
 */
 */
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];
};
};
/* This routine is machine independent?
/* This routine is machine independent?
 * Should move it to i387-tdep.c but you need to export struct env387
 * Should move it to i387-tdep.c but you need to export struct env387
 */
 */
private
private
print_387_status (status, ep)
print_387_status (status, ep)
     unsigned short status;
     unsigned short status;
     struct env387 *ep;
     struct env387 *ep;
{
{
  int i;
  int i;
  int bothstatus;
  int bothstatus;
  int top;
  int top;
  int fpreg;
  int fpreg;
  unsigned char *p;
  unsigned char *p;
 
 
  bothstatus = ((status != 0) && (ep->status != 0));
  bothstatus = ((status != 0) && (ep->status != 0));
  if (status != 0)
  if (status != 0)
    {
    {
      if (bothstatus)
      if (bothstatus)
        printf_unfiltered ("u: ");
        printf_unfiltered ("u: ");
      print_387_status_word (status);
      print_387_status_word (status);
    }
    }
 
 
  if (ep->status != 0)
  if (ep->status != 0)
    {
    {
      if (bothstatus)
      if (bothstatus)
        printf_unfiltered ("e: ");
        printf_unfiltered ("e: ");
      print_387_status_word (ep->status);
      print_387_status_word (ep->status);
    }
    }
 
 
  print_387_control_word (ep->control);
  print_387_control_word (ep->control);
  printf_unfiltered ("last exception: ");
  printf_unfiltered ("last exception: ");
  printf_unfiltered ("opcode %s; ", local_hex_string (ep->opcode));
  printf_unfiltered ("opcode %s; ", local_hex_string (ep->opcode));
  printf_unfiltered ("pc %s:", local_hex_string (ep->code_seg));
  printf_unfiltered ("pc %s:", local_hex_string (ep->code_seg));
  printf_unfiltered ("%s; ", local_hex_string (ep->eip));
  printf_unfiltered ("%s; ", local_hex_string (ep->eip));
  printf_unfiltered ("operand %s", local_hex_string (ep->operand_seg));
  printf_unfiltered ("operand %s", local_hex_string (ep->operand_seg));
  printf_unfiltered (":%s\n", local_hex_string (ep->operand));
  printf_unfiltered (":%s\n", local_hex_string (ep->operand));
 
 
  top = (ep->status >> 11) & 7;
  top = (ep->status >> 11) & 7;
 
 
  printf_unfiltered ("regno  tag  msb              lsb  value\n");
  printf_unfiltered ("regno  tag  msb              lsb  value\n");
  for (fpreg = 7; fpreg >= 0; fpreg--)
  for (fpreg = 7; fpreg >= 0; fpreg--)
    {
    {
      double val;
      double val;
 
 
      printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : "  ", fpreg);
      printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : "  ", fpreg);
 
 
      switch ((ep->tag >> (fpreg * 2)) & 3)
      switch ((ep->tag >> (fpreg * 2)) & 3)
        {
        {
        case 0:
        case 0:
          printf_unfiltered ("valid ");
          printf_unfiltered ("valid ");
          break;
          break;
        case 1:
        case 1:
          printf_unfiltered ("zero  ");
          printf_unfiltered ("zero  ");
          break;
          break;
        case 2:
        case 2:
          printf_unfiltered ("trap  ");
          printf_unfiltered ("trap  ");
          break;
          break;
        case 3:
        case 3:
          printf_unfiltered ("empty ");
          printf_unfiltered ("empty ");
          break;
          break;
        }
        }
      for (i = 9; i >= 0; i--)
      for (i = 9; i >= 0; i--)
        printf_unfiltered ("%02x", ep->regs[fpreg][i]);
        printf_unfiltered ("%02x", ep->regs[fpreg][i]);
 
 
      floatformat_to_double (&floatformat_i387_ext, (char *) ep->regs[fpreg],
      floatformat_to_double (&floatformat_i387_ext, (char *) ep->regs[fpreg],
                             &val);
                             &val);
      printf_unfiltered ("  %g\n", val);
      printf_unfiltered ("  %g\n", val);
    }
    }
  if (ep->r0)
  if (ep->r0)
    printf_unfiltered ("warning: reserved0 is %s\n", local_hex_string (ep->r0));
    printf_unfiltered ("warning: reserved0 is %s\n", local_hex_string (ep->r0));
  if (ep->r1)
  if (ep->r1)
    printf_unfiltered ("warning: reserved1 is %s\n", local_hex_string (ep->r1));
    printf_unfiltered ("warning: reserved1 is %s\n", local_hex_string (ep->r1));
  if (ep->r2)
  if (ep->r2)
    printf_unfiltered ("warning: reserved2 is %s\n", local_hex_string (ep->r2));
    printf_unfiltered ("warning: reserved2 is %s\n", local_hex_string (ep->r2));
  if (ep->r3)
  if (ep->r3)
    printf_unfiltered ("warning: reserved3 is %s\n", local_hex_string (ep->r3));
    printf_unfiltered ("warning: reserved3 is %s\n", local_hex_string (ep->r3));
}
}
 
 
/*
/*
 * values that go into fp_kind (from <i386/fpreg.h>)
 * values that go into fp_kind (from <i386/fpreg.h>)
 */
 */
#define FP_NO   0               /* no fp chip, no emulator (no fp support)      */
#define FP_NO   0               /* no fp chip, no emulator (no fp support)      */
#define FP_SW   1               /* no fp chip, using software emulator          */
#define FP_SW   1               /* no fp chip, using software emulator          */
#define FP_HW   2               /* chip present bit                             */
#define FP_HW   2               /* chip present bit                             */
#define FP_287  2               /* 80287 chip present                           */
#define FP_287  2               /* 80287 chip present                           */
#define FP_387  3               /* 80387 chip present                           */
#define FP_387  3               /* 80387 chip present                           */
 
 
typedef struct fpstate
typedef struct fpstate
{
{
#if 1
#if 1
  unsigned char state[FP_STATE_BYTES];  /* "hardware" state */
  unsigned char state[FP_STATE_BYTES];  /* "hardware" state */
#else
#else
  struct env387 state;          /* Actually this */
  struct env387 state;          /* Actually this */
#endif
#endif
  int status;                   /* Duplicate status */
  int status;                   /* Duplicate status */
}
}
 *fpstate_t;
 *fpstate_t;
 
 
/* Mach 3 specific routines.
/* Mach 3 specific routines.
 */
 */
private boolean_t
private boolean_t
get_i387_state (fstate)
get_i387_state (fstate)
     struct fpstate *fstate;
     struct fpstate *fstate;
{
{
  kern_return_t ret;
  kern_return_t ret;
  thread_state_data_t state;
  thread_state_data_t state;
  unsigned int fsCnt = i386_FLOAT_STATE_COUNT;
  unsigned int fsCnt = i386_FLOAT_STATE_COUNT;
  struct i386_float_state *fsp;
  struct i386_float_state *fsp;
 
 
  ret = thread_get_state (current_thread,
  ret = thread_get_state (current_thread,
                          i386_FLOAT_STATE,
                          i386_FLOAT_STATE,
                          state,
                          state,
                          &fsCnt);
                          &fsCnt);
 
 
  if (ret != KERN_SUCCESS)
  if (ret != KERN_SUCCESS)
    {
    {
      warning ("Can not get live floating point state: %s",
      warning ("Can not get live floating point state: %s",
               mach_error_string (ret));
               mach_error_string (ret));
      return FALSE;
      return FALSE;
    }
    }
 
 
  fsp = (struct i386_float_state *) state;
  fsp = (struct i386_float_state *) state;
  /* The 387 chip (also 486 counts) or a software emulator? */
  /* The 387 chip (also 486 counts) or a software emulator? */
  if (!fsp->initialized || (fsp->fpkind != FP_387 && fsp->fpkind != FP_SW))
  if (!fsp->initialized || (fsp->fpkind != FP_387 && fsp->fpkind != FP_SW))
    return FALSE;
    return FALSE;
 
 
  /* Clear the target then copy thread's float state there.
  /* Clear the target then copy thread's float state there.
     Make a copy of the status word, for some reason?
     Make a copy of the status word, for some reason?
   */
   */
  memset (fstate, 0, sizeof (struct fpstate));
  memset (fstate, 0, sizeof (struct fpstate));
 
 
  fstate->status = fsp->exc_status;
  fstate->status = fsp->exc_status;
 
 
  memcpy (fstate->state, (char *) &fsp->hw_state, FP_STATE_BYTES);
  memcpy (fstate->state, (char *) &fsp->hw_state, FP_STATE_BYTES);
 
 
  return TRUE;
  return TRUE;
}
}
 
 
private boolean_t
private boolean_t
get_i387_core_state (fstate)
get_i387_core_state (fstate)
     struct fpstate *fstate;
     struct fpstate *fstate;
{
{
  /* Not implemented yet. Core files do not contain float state. */
  /* Not implemented yet. Core files do not contain float state. */
  return FALSE;
  return FALSE;
}
}
 
 
/*
/*
 * This is called by "info float" command
 * This is called by "info float" command
 */
 */
void
void
i386_mach3_float_info ()
i386_mach3_float_info ()
{
{
  char buf[sizeof (struct fpstate) + 2 * sizeof (int)];
  char buf[sizeof (struct fpstate) + 2 * sizeof (int)];
  boolean_t valid = FALSE;
  boolean_t valid = FALSE;
  fpstate_t fps;
  fpstate_t fps;
 
 
  if (target_has_execution)
  if (target_has_execution)
    valid = get_i387_state (buf);
    valid = get_i387_state (buf);
#if 0
#if 0
  else if (WE HAVE CORE FILE)   /* @@@@ Core files not supported */
  else if (WE HAVE CORE FILE)   /* @@@@ Core files not supported */
    valid = get_i387_core_state (buf);
    valid = get_i387_core_state (buf);
#endif
#endif
 
 
  if (!valid)
  if (!valid)
    {
    {
      warning ("no floating point status saved");
      warning ("no floating point status saved");
      return;
      return;
    }
    }
 
 
  fps = (fpstate_t) buf;
  fps = (fpstate_t) buf;
 
 
  print_387_status (fps->status, (struct env387 *) fps->state);
  print_387_status (fps->status, (struct env387 *) fps->state);
}
}
 
 

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