Initial creation of sourceware repository

1 files changed, 0 insertions, 357 deletions

diff --git a/gdb/i386gnu-nat.c b/gdb/i386gnu-nat.c
deleted file mode 100644
index 6ed92c167f5..00000000000
--- a/gdb/i386gnu-nat.c
+++ /dev/null
@@ -1,357 +0,0 @@
-/* Low level interface to I386 running the GNU Hurd
-   Copyright (C) 1992, 1995, 1996 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 2 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, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-#include "defs.h"
-#include "inferior.h"
-#include "floatformat.h"
-
-#include <stdio.h>
-#include <errno.h>
-
-#include <mach.h>
-#include <mach/message.h>
-#include <mach/exception.h>
-#include <mach_error.h>
-
-#include "gnu-nat.h"
-
-/* Hmmm... Should this not be here?
- * Now for i386_float_info() target_has_execution
- */
-#include <target.h>
-
-/* @@@ Should move print_387_status() to i387-tdep.c */
-extern void print_387_control_word ();		/* i387-tdep.h */
-extern void print_387_status_word ();
-
-/* Find offsets to thread states at compile time.
- * If your compiler does not grok this, calculate offsets
- * offsets yourself and use them (or get a compatible compiler :-)
- */
-
-#define  REG_OFFSET(reg) (int)(&((struct i386_thread_state *)0)->reg)
-
-/* at reg_offset[i] is the offset to the i386_thread_state
- * location where the gdb registers[i] is stored.
- */
-
-static int reg_offset[] = 
-{
-  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(eip),  REG_OFFSET(efl), REG_OFFSET(cs),  REG_OFFSET(ss),
-  REG_OFFSET(ds),   REG_OFFSET(es),  REG_OFFSET(fs),  REG_OFFSET(gs)
-};
-
-#define REG_ADDR(state,regnum) ((char *)(state)+reg_offset[regnum])
-
-/* Fetch COUNT contiguous registers from thread STATE starting from REGNUM
- * Caller knows that the regs handled in one transaction are of same size.
- */
-#define FETCH_REGS(state, regnum, count) \
-  memcpy (&registers[REGISTER_BYTE (regnum)], \
-	  REG_ADDR (state, regnum), \
-	  count * REGISTER_RAW_SIZE (regnum))
-
-/* Store COUNT contiguous registers to thread STATE starting from REGNUM */
-#define STORE_REGS(state, regnum, count) \
-  memcpy (REG_ADDR (state, regnum), \
-	  &registers[REGISTER_BYTE (regnum)], \
-	  count * REGISTER_RAW_SIZE (regnum))
-
-/*
- * Fetch inferiors registers for gdb.
- * REG specifies which (as gdb views it) register, -1 for all.
- */
-void
-gnu_fetch_registers (int reg)
-{
-  struct proc *thread;
-  thread_state_t state;
-  
-  inf_update_procs (current_inferior); /* Make sure we know about new threads.  */
-
-  thread = inf_tid_to_thread (current_inferior, inferior_pid);
-  if (! thread)
-    error ("fetch inferior registers: %d: Invalid thread", inferior_pid);
-
-  state = proc_get_state (thread, 0);
-
-  if (! state)
-    warning ("Couldn't fetch register %s from %s (invalid thread).",
-	     REGISTER_NAME (reg), proc_string (thread));
-  else if (reg >= 0)
-    {
-      proc_debug (thread, "fetching register: %s", REGISTER_NAME (reg));
-      supply_register (reg, REG_ADDR(state, reg));
-      thread->fetched_regs |= (1 << reg);
-    }
-  else
-    {
-      proc_debug (thread, "fetching all registers");
-      for (reg = 0; reg < NUM_REGS; reg++) 
-	supply_register (reg, REG_ADDR(state, reg));
-      thread->fetched_regs = ~0;
-    }
-}
-
-/* Store our register values back into the inferior.
- * If REG is -1, do this for all registers.
- * Otherwise, REG specifies which register
- *
- * On mach3 all registers are always saved in one call.
- */
-void
-gnu_store_registers (reg)
-     int reg;
-{
-  struct proc *thread;
-  int was_aborted, was_valid;
-  thread_state_t state;
-  thread_state_data_t old_state;
-  
-  inf_update_procs (current_inferior); /* Make sure we know about new threads.  */
-
-  thread = inf_tid_to_thread (current_inferior, inferior_pid);
-  if (! thread)
-    error ("store inferior registers: %d: Invalid thread", inferior_pid);
-
-  proc_debug (thread, "storing register %s.", REGISTER_NAME (reg));
-
-  was_aborted = thread->aborted;
-  was_valid = thread->state_valid;
-  if (! was_aborted && was_valid)
-    bcopy (&thread->state, &old_state, sizeof (old_state));
-
-  state = proc_get_state (thread, 1);
-
-  if (! state)
-    warning ("Couldn't store register %s from %s (invalid thread).",
-	     REGISTER_NAME (reg), proc_string (thread));
-  else
-    {
-      if (! was_aborted && was_valid)
-	/* See which registers have changed after aborting the thread.  */
-	{
-	  int check_reg;
-	  for (check_reg = 0; check_reg < NUM_REGS; check_reg++)
-	    if ((thread->fetched_regs & (1 << check_reg))
-		&& bcmp (REG_ADDR (&old_state, check_reg),
-			 REG_ADDR (state, check_reg),
-			 REGISTER_RAW_SIZE (check_reg)))
-	      /* Register CHECK_REG has changed!  Ack!  */
-	      {
-		warning ("Register %s changed after thread was aborted.",
-			 REGISTER_NAME (check_reg));
-		if (reg >= 0 && reg != check_reg)
-		  /* Update gdb's copy of the register.  */
-		  supply_register (check_reg, REG_ADDR (state, check_reg));
-		else
-		  warning ("... also writing this register!  Suspicious...");
-	      }
-	}
-
-      if (reg >= 0)
-	{
-	  proc_debug (thread, "storing register: %s", REGISTER_NAME (reg));
-	  STORE_REGS (state, reg, 1);
-	}
-      else
-	{
-	  proc_debug (thread, "storing all registers");
-	  for (reg = 0; reg < NUM_REGS; reg++) 
-	    STORE_REGS (state, reg, 1);
-	}
-    }
-}
-
-/* jtv@hut.fi: I copied and modified this 387 code from
- * gdb/i386-xdep.c. Modifications for Mach 3.0.
- *
- * i387 status dumper. See also i387-tdep.c
- */
-struct env387 
-{
-  unsigned short control;
-  unsigned short r0;
-  unsigned short status;
-  unsigned short r1;
-  unsigned short tag;
-  unsigned short r2;
-  unsigned long eip;
-  unsigned short code_seg;
-  unsigned short opcode;
-  unsigned long operand;
-  unsigned short operand_seg;
-  unsigned short r3;
-  unsigned char regs[8][10];
-};
-/* This routine is machine independent?
- * Should move it to i387-tdep.c but you need to export struct env387
- */
-static
-print_387_status (status, ep)
-     unsigned short status;
-     struct env387 *ep;
-{
-  int i;
-  int bothstatus;
-  int top;
-  int fpreg;
-  unsigned char *p;
-  
-  bothstatus = ((status != 0) && (ep->status != 0));
-  if (status != 0) 
-    {
-      if (bothstatus)
-	printf_unfiltered ("u: ");
-      print_387_status_word (status);
-    }
-  
-  if (ep->status != 0) 
-    {
-      if (bothstatus)
-	printf_unfiltered ("e: ");
-      print_387_status_word (ep->status);
-    }
-  
-  print_387_control_word (ep->control);
-  printf_unfiltered ("last exception: ");
-  printf_unfiltered ("opcode %s; ", local_hex_string(ep->opcode));
-  printf_unfiltered ("pc %s:", local_hex_string(ep->code_seg));
-  printf_unfiltered ("%s; ", local_hex_string(ep->eip));
-  printf_unfiltered ("operand %s", local_hex_string(ep->operand_seg));
-  printf_unfiltered (":%s\n", local_hex_string(ep->operand));
-  
-  top = (ep->status >> 11) & 7;
-  
-  printf_unfiltered ("regno  tag  msb              lsb  value\n");
-  for (fpreg = 7; fpreg >= 0; fpreg--) 
-    {
-      double val;
-      
-      printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : "  ", fpreg);
-      
-      switch ((ep->tag >> (fpreg * 2)) & 3) 
-	{
-	case 0: printf_unfiltered ("valid "); break;
-	case 1: printf_unfiltered ("zero  "); break;
-	case 2: printf_unfiltered ("trap  "); break;
-	case 3: printf_unfiltered ("empty "); break;
-	}
-      for (i = 9; i >= 0; i--)
-	printf_unfiltered ("%02x", ep->regs[fpreg][i]);
-      
-      floatformat_to_double (&floatformat_i387_ext, (char *)ep->regs[fpreg],
-			       &val);
-      printf_unfiltered ("  %g\n", val);
-    }
-  if (ep->r0)
-    printf_unfiltered ("warning: reserved0 is %s\n", local_hex_string(ep->r0));
-  if (ep->r1)
-    printf_unfiltered ("warning: reserved1 is %s\n", local_hex_string(ep->r1));
-  if (ep->r2)
-    printf_unfiltered ("warning: reserved2 is %s\n", local_hex_string(ep->r2));
-  if (ep->r3)
-    printf_unfiltered ("warning: reserved3 is %s\n", local_hex_string(ep->r3));
-}
-	
-/*
- * values that go into fp_kind (from <i386/fpreg.h>)
- */
-#define FP_NO   0       /* no fp chip, no emulator (no fp support)      */
-#define FP_SW   1       /* no fp chip, using software emulator          */
-#define FP_HW   2       /* chip present bit                             */
-#define FP_287  2       /* 80287 chip present                           */
-#define FP_387  3       /* 80387 chip present                           */
-
-typedef struct fpstate {
-#if 1
-  unsigned char	state[FP_STATE_BYTES]; /* "hardware" state */
-#else
-  struct env387	state;	/* Actually this */
-#endif
-  int status;		/* Duplicate status */
-} *fpstate_t;
-
-/* Mach 3 specific routines.
- */
-static int
-get_i387_state (fstate)
-     struct fpstate *fstate;
-{
-  error_t err;
-  thread_state_data_t state;
-  unsigned int fsCnt = i386_FLOAT_STATE_COUNT;
-  struct i386_float_state *fsp;
-  struct proc *thread = inf_tid_to_thread (current_inferior, inferior_pid);
-  
-  if (!thread)
-    error ("get_i387_state: Invalid thread");
-
-  proc_abort (thread, 0);	/* Make sure THREAD's in a reasonable state. */
-
-  err = thread_get_state (thread->port, i386_FLOAT_STATE, state, &fsCnt);
-  if (err)
-    {
-      warning ("Can not get live floating point state: %s",
-	       mach_error_string (err));
-      return 0;
-    }
-
-  fsp = (struct i386_float_state *)state;
-  /* The 387 chip (also 486 counts) or a software emulator? */
-  if (!fsp->initialized || (fsp->fpkind != FP_387 && fsp->fpkind != FP_SW))
-    return 0;
-
-  /* Clear the target then copy thread's float state there.
-     Make a copy of the status word, for some reason?
-   */
-  memset (fstate, 0, sizeof (struct fpstate));
-
-  fstate->status = fsp->exc_status;
-
-  memcpy (fstate->state, (char *)&fsp->hw_state, FP_STATE_BYTES);
-
-  return 1;
-}
-
-/*
- * This is called by "info float" command
- */
-void
-i386_mach3_float_info()
-{
-  char buf [sizeof (struct fpstate) + 2 * sizeof (int)];
-  int valid = 0;
-  fpstate_t fps;
-  
-  if (target_has_execution)
-    valid = get_i387_state (buf);
-
-  if (!valid) 
-    {
-      warning ("no floating point status saved");
-      return;
-    }
-  
-  fps = (fpstate_t) buf;
-
-  print_387_status (fps->status, (struct env387 *)fps->state);
-}