More LynxOS support

1 files changed, 0 insertions, 283 deletions

diff --git a/gdb/i386lynx-nat.c b/gdb/i386lynx-nat.c
deleted file mode 100644
index 4153a47..0000000
--- a/gdb/i386lynx-nat.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/* Native-dependent code for Lynx running on i386's, for GDB.
-   Copyright 1988, 1989, 1991, 1992, 1993
-   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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
-
-#include "defs.h"
-#include "frame.h"
-#include "inferior.h"
-#include "target.h"
-
-#include <sys/ptrace.h>
-#include "/usr/include/sys/wait.h"
-
-/* these values indicate the offset of the named register in the econtext
-   structure */
-
-#define	EAX	10
-#define	ECX	9
-#define	EDX	8
-#define	EBX	7
-#define	ESP	16
-#define	EBP	5
-#define	ESI	4
-#define	EDI	3
-#define	EIP	13
-#define	EFL	15
-#define	CS	14
-#define	SS	17
-#define	DS	2
-#define	ES	1
-
-/* Currently these are not being used. So set them to 0 */
-
-#define	FS	0
-#define	GS	0
-
-/* this table must line up with REGISTER_NAMES in m-i386.h */
-static unsigned int regmap[] = 
-{
-  EAX, ECX, EDX, EBX,
-  ESP, EBP, ESI, EDI,
-  EIP, EFL, CS, SS,
-  DS, ES, FS, GS,
-};
-
-/* Return the address in the core dump or inferior of register REGNO.
-   BLOCKEND is the address of the econtext structure */
-
-static unsigned int
-register_addr (regno, blockend)
-     int regno, blockend;
-{
-  if (regno < 0 || regno >= NUM_REGS)
-    error ("Invalid register number %d.", regno);
-
-  return (blockend + regmap[regno] * sizeof (long));
-}
-
-/* Fetch one register.  */
-
-static void
-fetch_register (regno, offset, bpid)
-     int regno, bpid;
-     unsigned int offset;
-{
-  unsigned int regaddr;
-  char buf[MAX_REGISTER_RAW_SIZE];
-  char mess[128];				/* For messages */
-  int i;
-
-  regaddr = register_addr (regno, offset);
-  for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
-    {
-      errno = 0;
-      *(int *) &buf[i] = ptrace (PTRACE_PEEKTHREAD, bpid,
-				 (PTRACE_ARG3_TYPE) regaddr, 0);
-      regaddr += sizeof (int);
-      if (errno != 0)
-	{
-	  sprintf (mess, "reading register %s (#%d)", reg_names[regno], regno);
-	  perror_with_name (mess);
-	}
-    }
-  supply_register (regno, buf);
-}
-
-/* Store our register values back into the inferior.
-   If REGNO is -1, do this for all registers.
-   Otherwise, REGNO specifies which register (so we can save time).  */
-
-static void
-store_register (regno, offset, bpid)
-     int regno, bpid;
-     unsigned int offset;
-{
-  unsigned int regaddr;
-  char mess[128];
-  extern char registers[];
-  int i;
-
-  regaddr = register_addr (regno, offset);
-  for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
-    {
-      errno = 0;
-      ptrace (PTRACE_POKEUSER, bpid, (PTRACE_ARG3_TYPE) regaddr,
-	      *(int *) &registers[REGISTER_BYTE (regno) + i]);
-      if (errno != 0)
-        {  
-	  sprintf (mess, "writing register number %d(%d)", regno, i);
-	  perror_with_name (mess);
-        }
-      regaddr += sizeof(int);
-    }
-}
-
-/* return an offset for use with register_addr() */
-
-static unsigned int
-fetch_offset (pid)
-    int pid;
-{
-  struct st_entry s;
-  unsigned int specpage_off, offset = (char *) &s.ecp - (char *) &s;
-
-  errno = 0;
-  specpage_off = ptrace (PTRACE_THREADUSER, pid, (PTRACE_ARG3_TYPE) 0, 0);
-  if (errno != 0)
-    perror_with_name ("ptrace");
-  errno = 0;
-  offset = ptrace (PTRACE_PEEKTHREAD, pid, (PTRACE_ARG3_TYPE) offset, 0)
-      - specpage_off;
-  if (errno != 0)
-    perror_with_name ("ptrace");
-  return offset;
-}
-
-/* Fetch all registers, or just one, from the child process.  */
-
-void
-fetch_inferior_registers (regno)
-     int regno;
-{
-  unsigned int offset = fetch_offset (inferior_pid);
-
-  if (regno == -1)
-    {
-      for (regno = 0; regno < NUM_REGS; regno++)
-        fetch_register (regno, offset, inferior_pid);
-    }
-  else
-    fetch_register (regno, offset, inferior_pid);
-}
-
-/* Store all registers, or just one, to the child process.  */
-
-void
-store_inferior_registers (regno)
-     int regno;
-{
-    unsigned int offset = fetch_offset (inferior_pid);
-
-    if (regno == -1)
-      {
-        for (regno = 0; regno < NUM_REGS; regno++)
-	  store_register (regno, offset, inferior_pid);
-      }
-    else
-      store_register (regno, offset, inferior_pid);
-}
-
-/* Wait for child to do something.  Return pid of child, or -1 in case
-   of error; store status through argument pointer STATUS.  */
-
-int
-child_wait (pid, status)
-     int pid;
-     int *status;
-{
-  int save_errno;
-  int thread;
-
-  while (1)
-    {
-      int sig;
-
-      if (attach_flag)
-	set_sigint_trap();	/* Causes SIGINT to be passed on to the
-				   attached process. */
-      pid = wait (status);
-      save_errno = errno;
-
-      if (attach_flag)
-	clear_sigint_trap();
-
-      if (pid == -1)
-	{
-	  if (save_errno == EINTR)
-	    continue;
-	  fprintf (stderr, "Child process unexpectedly missing: %s.\n",
-		   safe_strerror (save_errno));
-	  *status = 42;		/* Claim it exited with signal 42 */
-	  return -1;
-	}
-
-      if (pid != PIDGET (inferior_pid))	/* Some other process?!? */
-	continue;
-
-/*      thread = WIFTID (*status);*/
-      thread = *status >> 16;
-
-      /* Initial thread value can only be acquired via wait, so we have to
-	 resort to this hack.  */
-
-      if (TIDGET (inferior_pid) == 0)
-	{
-	  inferior_pid = BUILDPID (inferior_pid, thread);
-	  add_thread (inferior_pid);
-	}
-
-      pid = BUILDPID (pid, thread);
-
-      return pid;
-    }
-}
-
-/* Convert a Lynx process ID to a string.  Returns the string in a static
-   buffer.  */
-
-char *
-i386lynx_pid_to_str (pid)
-     int pid;
-{
-  static char buf[40];
-
-  sprintf (buf, "process %d thread %d", PIDGET (pid), TIDGET (pid));
-
-  return buf;
-}
-
-/* Extract the register values out of the core file and store
-   them where `read_register' will find them.
-
-   CORE_REG_SECT points to the register values themselves, read into memory.
-   CORE_REG_SIZE is the size of that area.
-   WHICH says which set of registers we are handling (0 = int, 2 = float
-         on machines where they are discontiguous).
-   REG_ADDR is the offset from u.u_ar0 to the register values relative to
-            core_reg_sect.  This is used with old-fashioned core files to
-	    locate the registers in a large upage-plus-stack ".reg" section.
-	    Original upage address X is at location core_reg_sect+x+reg_addr.
- */
-
-void
-fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
-     char *core_reg_sect;
-     unsigned core_reg_size;
-     int which;
-     unsigned reg_addr;
-{
-  struct st_entry s;
-  unsigned int regno, addr;
-
-  for (regno = 0; regno < NUM_REGS; regno++)
-    {
-      addr = register_addr (regno, (char *) &s.ec - (char *) &s);
-      supply_register (regno, core_reg_sect + addr);
-    }
-}