Initial creation of sourceware repository

1 files changed, 0 insertions, 392 deletions

diff --git a/gdb/i386v-nat.c b/gdb/i386v-nat.c
deleted file mode 100644
index 5618687..0000000
--- a/gdb/i386v-nat.c
+++ /dev/null
@@ -1,392 +0,0 @@
-/* Intel 386 native support for SYSV systems (pre-SVR4).
-   Copyright (C) 1988, 89, 91, 92, 94, 96, 1998 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"
-
-#ifdef HAVE_PTRACE_H
-# include <ptrace.h>
-#else
-# ifdef HAVE_SYS_PTRACE_H
-#  include <sys/ptrace.h>
-# endif
-#endif
-
-#include "frame.h"
-#include "inferior.h"
-#include "language.h"
-#include "gdbcore.h"
-
-#ifdef USG
-#include <sys/types.h>
-#endif
-
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <signal.h>
-#include <sys/user.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-
-
-/* FIXME: The following used to be just "#include <sys/debugreg.h>", but
- * the the Linux 2.1.x kernel and glibc 2.0.x are not in sync; including
- * <sys/debugreg.h> will result in an error.  With luck, these losers
- * will get their act together and we can trash this hack in the near future.
- * --jsm 1998-10-21
- */
-
-#ifdef TARGET_HAS_HARDWARE_WATCHPOINTS
-# ifdef HAVE_ASM_DEBUGREG_H
-#  include <asm/debugreg.h>
-# else
-#  include <sys/debugreg.h>
-# endif
-#endif
-
-#include <sys/file.h>
-#include "gdb_stat.h"
-
-#ifdef HAVE_SYS_REG_H
-#include <sys/reg.h>
-#endif
-
-#include "floatformat.h"
-
-#include "target.h"
-
-
-/* this table must line up with REGISTER_NAMES in tm-i386v.h */
-/* symbols like 'EAX' come from <sys/reg.h> */
-static int regmap[] = 
-{
-  EAX, ECX, EDX, EBX,
-  UESP, EBP, ESI, EDI,
-  EIP, EFL, CS, SS,
-  DS, ES, FS, GS,
-};
-
-/* blockend is the value of u.u_ar0, and points to the
- * place where GS is stored
- */
-
-int
-i386_register_u_addr (blockend, regnum)
-     int blockend;
-     int regnum;
-{
-  struct user u;
-  int fpstate;
-  int ubase;
-
-  ubase = blockend;
-  /* FIXME:  Should have better way to test floating point range */
-  if (regnum >= FP0_REGNUM && regnum <= (FP0_REGNUM + 7)) 
-    {
-#ifdef KSTKSZ	/* SCO, and others? */
-      ubase += 4 * (SS + 1) - KSTKSZ;
-      fpstate = ubase + ((char *)&u.u_fps.u_fpstate - (char *)&u);
-      return (fpstate + 0x1c + 10 * (regnum - FP0_REGNUM));
-#else
-      fpstate = ubase + ((char *)&u.i387.st_space - (char *)&u);
-      return (fpstate + 10 * (regnum - FP0_REGNUM));
-#endif
-    } 
-  else
-    {
-      return (ubase + 4 * regmap[regnum]);
-    }
-  
-}
-
-int
-kernel_u_size ()
-{
-  return (sizeof (struct user));
-}
-
-#ifdef TARGET_HAS_HARDWARE_WATCHPOINTS
-
-#if !defined (offsetof)
-#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
-#endif
-
-/* Record the value of the debug control register.  */
-static int debug_control_mirror;
-
-/* Record which address associates with which register.  */
-static CORE_ADDR address_lookup[DR_LASTADDR - DR_FIRSTADDR + 1];
-
-static int
-i386_insert_aligned_watchpoint PARAMS ((int, CORE_ADDR, CORE_ADDR, int,
-					   int));
-
-static int
-i386_insert_nonaligned_watchpoint PARAMS ((int, CORE_ADDR, CORE_ADDR, int,
-					   int));
-
-/* Insert a watchpoint.  */
-
-int
-i386_insert_watchpoint (pid, addr, len, rw)
-     int pid;
-     CORE_ADDR addr;
-     int len;
-     int rw;
-{
-  return i386_insert_aligned_watchpoint (pid, addr, addr, len, rw);
-}
-
-static int
-i386_insert_aligned_watchpoint (pid, waddr, addr, len, rw)
-     int pid;
-     CORE_ADDR waddr;
-     CORE_ADDR addr;
-     int len;
-     int rw;
-{
-  int i;
-  int read_write_bits, len_bits;
-  int free_debug_register;
-  int register_number;
-  
-  /* Look for a free debug register.  */
-  for (i = DR_FIRSTADDR; i <= DR_LASTADDR; i++)
-    {
-      if (address_lookup[i - DR_FIRSTADDR] == 0)
-	break;
-    }
-
-  /* No more debug registers!  */
-  if (i > DR_LASTADDR)
-    return -1;
-
-  read_write_bits = (rw & 1) ? DR_RW_READ : DR_RW_WRITE;
-
-  if (len == 1)
-    len_bits = DR_LEN_1;
-  else if (len == 2)
-    {
-      if (addr % 2)
-	return i386_insert_nonaligned_watchpoint (pid, waddr, addr, len, rw);
-      len_bits = DR_LEN_2;
-    }
-
-  else if (len == 4)
-    {
-      if (addr % 4)
-	return i386_insert_nonaligned_watchpoint (pid, waddr, addr, len, rw);
-      len_bits = DR_LEN_4;
-    }
-  else
-    return i386_insert_nonaligned_watchpoint (pid, waddr, addr, len, rw);
-  
-  free_debug_register = i;
-  register_number = free_debug_register - DR_FIRSTADDR;
-  debug_control_mirror |=
-    ((read_write_bits | len_bits)
-     << (DR_CONTROL_SHIFT + DR_CONTROL_SIZE * register_number));
-  debug_control_mirror |=
-    (1 << (DR_LOCAL_ENABLE_SHIFT + DR_ENABLE_SIZE * register_number));
-  debug_control_mirror |= DR_LOCAL_SLOWDOWN;
-  debug_control_mirror &= ~DR_CONTROL_RESERVED;
-  
-  ptrace (6, pid, offsetof (struct user, u_debugreg[DR_CONTROL]),
-	  debug_control_mirror);
-  ptrace (6, pid, offsetof (struct user, u_debugreg[free_debug_register]),
-	  addr);
-
-  /* Record where we came from.  */
-  address_lookup[register_number] = addr;
-  return 0;
-}
-
-static int
-i386_insert_nonaligned_watchpoint (pid, waddr, addr, len, rw)
-     int pid;
-     CORE_ADDR waddr;
-     CORE_ADDR addr;
-     int len;
-     int rw;
-{
-  int align;
-  int size;
-  int rv;
-
-  static int size_try_array[16] = {
-    1, 1, 1, 1,			/* trying size one */
-    2, 1, 2, 1,			/* trying size two */
-    2, 1, 2, 1,			/* trying size three */
-    4, 1, 2, 1			/* trying size four */
-  };
-
-  rv = 0;
-  while (len > 0)
-    {
-      align = addr % 4;
-      /* Four is the maximum length for 386.  */
-      size = (len > 4) ? 3 : len - 1;
-      size = size_try_array[size * 4 + align];
-
-      rv = i386_insert_aligned_watchpoint (pid, waddr, addr, size, rw);
-      if (rv)
-	{
-	  i386_remove_watchpoint (pid, waddr, size);
-	  return rv;
-	}
-      addr += size;
-      len -= size;
-    }
-  return rv;
-}
-
-/* Remove a watchpoint.  */
-
-int
-i386_remove_watchpoint (pid, addr, len)
-     int pid;
-     CORE_ADDR addr;
-     int len;
-{
-  int i;
-  int register_number;
-
-  for (i = DR_FIRSTADDR; i <= DR_LASTADDR; i++)
-    {
-      register_number = i - DR_FIRSTADDR;
-      if (address_lookup[register_number] == addr)
-	{
-	  debug_control_mirror &=
-	    ~(1 << (DR_LOCAL_ENABLE_SHIFT + DR_ENABLE_SIZE * register_number));
-	  address_lookup[register_number] = 0;
-	}
-    }
-  ptrace (6, pid, offsetof (struct user, u_debugreg[DR_CONTROL]),
-	  debug_control_mirror);
-  ptrace (6, pid, offsetof (struct user, u_debugreg[DR_STATUS]), 0);
-
-  return 0;
-}
-
-/* Check if stopped by a watchpoint.  */
-
-CORE_ADDR
-i386_stopped_by_watchpoint (pid)
-    int pid;
-{
-  int i;
-  int status;
-
-  status = ptrace (3, pid, offsetof (struct user, u_debugreg[DR_STATUS]), 0);
-  ptrace (6, pid, offsetof (struct user, u_debugreg[DR_STATUS]), 0);
-
-  for (i = DR_FIRSTADDR; i <= DR_LASTADDR; i++)
-    {
-      if (status & (1 << (i - DR_FIRSTADDR)))
-	return address_lookup[i - DR_FIRSTADDR];
-    }
-
-  return 0;
-}
-
-#endif /* TARGET_HAS_HARDWARE_WATCHPOINTS */
-
-#if 0
-/* using FLOAT_INFO as is would be a problem.  FLOAT_INFO is called
-   via a command xxx and eventually calls ptrace without ever having
-   traversed the target vector.  This would be terribly impolite
-   behaviour for a sun4 hosted remote gdb.
-
-   A fix might be to move this code into the "info registers" command.
-   rich@cygnus.com 15 Sept 92. */
-i386_float_info ()
-{
-  struct user u; /* just for address computations */
-  int i;
-  /* fpstate defined in <sys/user.h> */
-  struct fpstate *fpstatep;
-  char buf[sizeof (struct fpstate) + 2 * sizeof (int)];
-  unsigned int uaddr;
-  char fpvalid = 0;
-  unsigned int rounded_addr;
-  unsigned int rounded_size;
-  extern int corechan;
-  int skip;
-  
-  uaddr = (char *)&u.u_fpvalid - (char *)&u;
-  if (target_has_execution)
-    {
-      unsigned int data;
-      unsigned int mask;
-      
-      rounded_addr = uaddr & -sizeof (int);
-      data = ptrace (3, inferior_pid, (PTRACE_ARG3_TYPE) rounded_addr, 0);
-      mask = 0xff << ((uaddr - rounded_addr) * 8);
-      
-      fpvalid = ((data & mask) != 0);
-    } 
-#if 0
-  else 
-    {
-      if (lseek (corechan, uaddr, 0) < 0)
-	perror ("seek on core file");
-      if (myread (corechan, &fpvalid, 1) < 0) 
-	perror ("read on core file");
-      
-    }
-#endif	/* no core support yet */
-  
-  if (fpvalid == 0) 
-    {
-      printf_unfiltered ("no floating point status saved\n");
-      return;
-    }
-  
-  uaddr = (char *)&U_FPSTATE(u) - (char *)&u;
-  if (target_has_execution)
-    {
-      int *ip;
-      
-      rounded_addr = uaddr & -sizeof (int);
-      rounded_size = (((uaddr + sizeof (struct fpstate)) - uaddr) +
-		      sizeof (int) - 1) / sizeof (int);
-      skip = uaddr - rounded_addr;
-      
-      ip = (int *)buf;
-      for (i = 0; i < rounded_size; i++) 
-	{
-	  *ip++ = ptrace (3, inferior_pid, (PTRACE_ARG3_TYPE) rounded_addr, 0);
-	  rounded_addr += sizeof (int);
-	}
-    } 
-#if 0
-  else 
-    {
-      if (lseek (corechan, uaddr, 0) < 0)
-	perror_with_name ("seek on core file");
-      if (myread (corechan, buf, sizeof (struct fpstate)) < 0) 
-	perror_with_name ("read from core file");
-      skip = 0;
-    }
-#endif	/* 0 */ 
-
-  fpstatep = (struct fpstate *)(buf + skip);
-  print_387_status (fpstatep->status, (struct env387 *)fpstatep->state);
-}
-
-#endif /* never */