Initial creation of sourceware repository

1 files changed, 0 insertions, 837 deletions

diff --git a/gdb/lynx-nat.c b/gdb/lynx-nat.c
deleted file mode 100644
index f006aa4..0000000
--- a/gdb/lynx-nat.c
+++ /dev/null
@@ -1,837 +0,0 @@
-/* Native-dependent code for LynxOS.
-   Copyright 1993, 1994 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 "frame.h"
-#include "inferior.h"
-#include "target.h"
-#include "gdbcore.h"
-
-#include <sys/ptrace.h>
-#include <sys/wait.h>
-#include <sys/fpp.h>
-
-static unsigned long registers_addr PARAMS ((int pid));
-static void fetch_core_registers PARAMS ((char *, unsigned, int, CORE_ADDR);
-
-#define X(ENTRY)(offsetof(struct econtext, ENTRY))
-
-#ifdef I386
-/* Mappings from tm-i386v.h */
-
-static int regmap[] =
-{
-  X(eax),
-  X(ecx),
-  X(edx),
-  X(ebx),
-  X(esp),			/* sp */
-  X(ebp),			/* fp */
-  X(esi),
-  X(edi),
-  X(eip),			/* pc */
-  X(flags),			/* ps */
-  X(cs),
-  X(ss),
-  X(ds),
-  X(es),
-  X(ecode),			/* Lynx doesn't give us either fs or gs, so */
-  X(fault),			/* we just substitute these two in the hopes
-				   that they are useful. */
-};
-#endif /* I386 */
-
-#ifdef M68K
-/* Mappings from tm-m68k.h */
-
-static int regmap[] =
-{
-  X(regs[0]),			/* d0 */
-  X(regs[1]),			/* d1 */
-  X(regs[2]),			/* d2 */
-  X(regs[3]),			/* d3 */
-  X(regs[4]),			/* d4 */
-  X(regs[5]),			/* d5 */
-  X(regs[6]),			/* d6 */
-  X(regs[7]),			/* d7 */
-  X(regs[8]),			/* a0 */
-  X(regs[9]),			/* a1 */
-  X(regs[10]),			/* a2 */
-  X(regs[11]),			/* a3 */
-  X(regs[12]),			/* a4 */
-  X(regs[13]),			/* a5 */
-  X(regs[14]),			/* fp */
-  offsetof (st_t, usp) - offsetof (st_t, ec), /* sp */
-  X(status),			/* ps */
-  X(pc),
-
-  X(fregs[0*3]),		/* fp0 */
-  X(fregs[1*3]),		/* fp1 */
-  X(fregs[2*3]),		/* fp2 */
-  X(fregs[3*3]),		/* fp3 */
-  X(fregs[4*3]),		/* fp4 */
-  X(fregs[5*3]),		/* fp5 */
-  X(fregs[6*3]),		/* fp6 */
-  X(fregs[7*3]),		/* fp7 */
-
-  X(fcregs[0]),			/* fpcontrol */
-  X(fcregs[1]),			/* fpstatus */
-  X(fcregs[2]),			/* fpiaddr */
-  X(ssw),			/* fpcode */
-  X(fault),			/* fpflags */
-};
-#endif /* M68K */
-
-#ifdef SPARC
-/* Mappings from tm-sparc.h */
-
-#define FX(ENTRY)(offsetof(struct fcontext, ENTRY))
-
-static int regmap[] =
-{
-  -1,				/* g0 */
-  X(g1),
-  X(g2),
-  X(g3),
-  X(g4),
-  -1,				/* g5->g7 aren't saved by Lynx */
-  -1,
-  -1,
-
-  X(o[0]),
-  X(o[1]),
-  X(o[2]),
-  X(o[3]),
-  X(o[4]),
-  X(o[5]),
-  X(o[6]),			/* sp */
-  X(o[7]),			/* ra */
-
-  -1,-1,-1,-1,-1,-1,-1,-1,	/* l0 -> l7 */
-
-  -1,-1,-1,-1,-1,-1,-1,-1,	/* i0 -> i7 */
-
-  FX(f.fregs[0]),		/* f0 */
-  FX(f.fregs[1]),
-  FX(f.fregs[2]),
-  FX(f.fregs[3]),
-  FX(f.fregs[4]),
-  FX(f.fregs[5]),
-  FX(f.fregs[6]),
-  FX(f.fregs[7]),
-  FX(f.fregs[8]),
-  FX(f.fregs[9]),
-  FX(f.fregs[10]),
-  FX(f.fregs[11]),
-  FX(f.fregs[12]),
-  FX(f.fregs[13]),
-  FX(f.fregs[14]),
-  FX(f.fregs[15]),
-  FX(f.fregs[16]),
-  FX(f.fregs[17]),
-  FX(f.fregs[18]),
-  FX(f.fregs[19]),
-  FX(f.fregs[20]),
-  FX(f.fregs[21]),
-  FX(f.fregs[22]),
-  FX(f.fregs[23]),
-  FX(f.fregs[24]),
-  FX(f.fregs[25]),
-  FX(f.fregs[26]),
-  FX(f.fregs[27]),
-  FX(f.fregs[28]),
-  FX(f.fregs[29]),
-  FX(f.fregs[30]),
-  FX(f.fregs[31]),
-
-  X(y),
-  X(psr),
-  X(wim),
-  X(tbr),
-  X(pc),
-  X(npc),
-  FX(fsr),			/* fpsr */
-  -1,				/* cpsr */
-};
-#endif /* SPARC */
-
-#ifdef rs6000
-
-static int regmap[] =
-{
-  X(iregs[0]),			/* r0 */
-  X(iregs[1]),
-  X(iregs[2]),
-  X(iregs[3]),
-  X(iregs[4]),
-  X(iregs[5]),
-  X(iregs[6]),
-  X(iregs[7]),
-  X(iregs[8]),
-  X(iregs[9]),
-  X(iregs[10]),
-  X(iregs[11]),
-  X(iregs[12]),
-  X(iregs[13]),
-  X(iregs[14]),
-  X(iregs[15]),
-  X(iregs[16]),
-  X(iregs[17]),
-  X(iregs[18]),
-  X(iregs[19]),
-  X(iregs[20]),
-  X(iregs[21]),
-  X(iregs[22]),
-  X(iregs[23]),
-  X(iregs[24]),
-  X(iregs[25]),
-  X(iregs[26]),
-  X(iregs[27]),
-  X(iregs[28]),
-  X(iregs[29]),
-  X(iregs[30]),
-  X(iregs[31]),
-
-  X(fregs[0]),			/* f0 */
-  X(fregs[1]),
-  X(fregs[2]),
-  X(fregs[3]),
-  X(fregs[4]),
-  X(fregs[5]),
-  X(fregs[6]),
-  X(fregs[7]),
-  X(fregs[8]),
-  X(fregs[9]),
-  X(fregs[10]),
-  X(fregs[11]),
-  X(fregs[12]),
-  X(fregs[13]),
-  X(fregs[14]),
-  X(fregs[15]),
-  X(fregs[16]),
-  X(fregs[17]),
-  X(fregs[18]),
-  X(fregs[19]),
-  X(fregs[20]),
-  X(fregs[21]),
-  X(fregs[22]),
-  X(fregs[23]),
-  X(fregs[24]),
-  X(fregs[25]),
-  X(fregs[26]),
-  X(fregs[27]),
-  X(fregs[28]),
-  X(fregs[29]),
-  X(fregs[30]),
-  X(fregs[31]),
-
-  X(srr0),			/* IAR (PC) */
-  X(srr1),			/* MSR (PS) */
-  X(cr),			/* CR */
-  X(lr),			/* LR */
-  X(ctr),			/* CTR */
-  X(xer),			/* XER */
-  X(mq)				/* MQ */
-};
-
-#endif /* rs6000 */
-
-#ifdef SPARC
-
-/* This routine handles some oddball cases for Sparc registers and LynxOS.
-   In partucular, it causes refs to G0, g5->7, and all fp regs to return zero.
-   It also handles knows where to find the I & L regs on the stack.  */
-
-void
-fetch_inferior_registers (regno)
-     int regno;
-{
-  int whatregs = 0;
-
-#define WHATREGS_FLOAT 1
-#define WHATREGS_GEN 2
-#define WHATREGS_STACK 4
-
-  if (regno == -1)
-    whatregs = WHATREGS_FLOAT | WHATREGS_GEN | WHATREGS_STACK;
-  else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
-    whatregs = WHATREGS_STACK;
-  else if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32)
-    whatregs = WHATREGS_FLOAT;
-  else
-    whatregs = WHATREGS_GEN;
-
-  if (whatregs & WHATREGS_GEN)
-    {
-      struct econtext ec;		/* general regs */
-      char buf[MAX_REGISTER_RAW_SIZE];
-      int retval;
-      int i;
-
-      errno = 0;
-      retval = ptrace (PTRACE_GETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &ec,
-		       0);
-      if (errno)
-	perror_with_name ("ptrace(PTRACE_GETREGS)");
-  
-      memset (buf, 0, REGISTER_RAW_SIZE (G0_REGNUM));
-      supply_register (G0_REGNUM, buf);
-      supply_register (TBR_REGNUM, (char *)&ec.tbr);
-
-      memcpy (&registers[REGISTER_BYTE (G1_REGNUM)], &ec.g1,
-	      4 * REGISTER_RAW_SIZE (G1_REGNUM));
-      for (i = G1_REGNUM; i <= G1_REGNUM + 3; i++)
-	register_valid[i] = 1;
-
-      supply_register (PS_REGNUM, (char *)&ec.psr);
-      supply_register (Y_REGNUM, (char *)&ec.y);
-      supply_register (PC_REGNUM, (char *)&ec.pc);
-      supply_register (NPC_REGNUM, (char *)&ec.npc);
-      supply_register (WIM_REGNUM, (char *)&ec.wim);
-
-      memcpy (&registers[REGISTER_BYTE (O0_REGNUM)], ec.o,
-	      8 * REGISTER_RAW_SIZE (O0_REGNUM));
-      for (i = O0_REGNUM; i <= O0_REGNUM + 7; i++)
-	register_valid[i] = 1;
-    }
-
-  if (whatregs & WHATREGS_STACK)
-    {
-      CORE_ADDR sp;
-      int i;
-
-      sp = read_register (SP_REGNUM);
-
-      target_xfer_memory (sp + FRAME_SAVED_I0,
-			  &registers[REGISTER_BYTE(I0_REGNUM)],
-			  8 * REGISTER_RAW_SIZE (I0_REGNUM), 0);
-      for (i = I0_REGNUM; i <= I7_REGNUM; i++)
-	register_valid[i] = 1;
-
-      target_xfer_memory (sp + FRAME_SAVED_L0,
-			  &registers[REGISTER_BYTE(L0_REGNUM)],
-			  8 * REGISTER_RAW_SIZE (L0_REGNUM), 0);
-      for (i = L0_REGNUM; i <= L0_REGNUM + 7; i++)
-	register_valid[i] = 1;
-    }
-
-  if (whatregs & WHATREGS_FLOAT)
-    {
-      struct fcontext fc;		/* fp regs */
-      int retval;
-      int i;
-
-      errno = 0;
-      retval = ptrace (PTRACE_GETFPREGS, inferior_pid, (PTRACE_ARG3_TYPE) &fc,
-		       0);
-      if (errno)
-	perror_with_name ("ptrace(PTRACE_GETFPREGS)");
-  
-      memcpy (&registers[REGISTER_BYTE (FP0_REGNUM)], fc.f.fregs,
-	      32 * REGISTER_RAW_SIZE (FP0_REGNUM));
-      for (i = FP0_REGNUM; i <= FP0_REGNUM + 31; i++)
-	register_valid[i] = 1;
-
-      supply_register (FPS_REGNUM, (char *)&fc.fsr);
-    }
-}
-
-/* This routine handles storing of the I & L regs for the Sparc.  The trick
-   here is that they actually live on the stack.  The really tricky part is
-   that when changing the stack pointer, the I & L regs must be written to
-   where the new SP points, otherwise the regs will be incorrect when the
-   process is started up again.   We assume that the I & L regs are valid at
-   this point.  */
-
-void
-store_inferior_registers (regno)
-     int regno;
-{
-  int whatregs = 0;
-
-  if (regno == -1)
-    whatregs = WHATREGS_FLOAT | WHATREGS_GEN | WHATREGS_STACK;
-  else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
-    whatregs = WHATREGS_STACK;
-  else if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32)
-    whatregs = WHATREGS_FLOAT;
-  else if (regno == SP_REGNUM)
-    whatregs = WHATREGS_STACK | WHATREGS_GEN;
-  else
-    whatregs = WHATREGS_GEN;
-
-  if (whatregs & WHATREGS_GEN)
-    {
-      struct econtext ec;		/* general regs */
-      int retval;
-
-      ec.tbr = read_register (TBR_REGNUM);
-      memcpy (&ec.g1, &registers[REGISTER_BYTE (G1_REGNUM)],
-	      4 * REGISTER_RAW_SIZE (G1_REGNUM));
-
-      ec.psr = read_register (PS_REGNUM);
-      ec.y = read_register (Y_REGNUM);
-      ec.pc = read_register (PC_REGNUM);
-      ec.npc = read_register (NPC_REGNUM);
-      ec.wim = read_register (WIM_REGNUM);
-
-      memcpy (ec.o, &registers[REGISTER_BYTE (O0_REGNUM)],
-	      8 * REGISTER_RAW_SIZE (O0_REGNUM));
-
-      errno = 0;
-      retval = ptrace (PTRACE_SETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &ec,
-		       0);
-      if (errno)
-	perror_with_name ("ptrace(PTRACE_SETREGS)");
-    }
-
-  if (whatregs & WHATREGS_STACK)
-    {
-      int regoffset;
-      CORE_ADDR sp;
-
-      sp = read_register (SP_REGNUM);
-
-      if (regno == -1 || regno == SP_REGNUM)
-	{
-	  if (!register_valid[L0_REGNUM+5])
-	    abort();
-	  target_xfer_memory (sp + FRAME_SAVED_I0,
-			      &registers[REGISTER_BYTE (I0_REGNUM)],
-			      8 * REGISTER_RAW_SIZE (I0_REGNUM), 1);
-
-	  target_xfer_memory (sp + FRAME_SAVED_L0,
-			      &registers[REGISTER_BYTE (L0_REGNUM)],
-			      8 * REGISTER_RAW_SIZE (L0_REGNUM), 1);
-	}
-      else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
-	{
-	  if (!register_valid[regno])
-	    abort();
-	  if (regno >= L0_REGNUM && regno <= L0_REGNUM + 7)
-	    regoffset = REGISTER_BYTE (regno) - REGISTER_BYTE (L0_REGNUM)
-	      + FRAME_SAVED_L0;
-	  else
-	    regoffset = REGISTER_BYTE (regno) - REGISTER_BYTE (I0_REGNUM)
-	      + FRAME_SAVED_I0;
-	  target_xfer_memory (sp + regoffset, &registers[REGISTER_BYTE (regno)],
-			      REGISTER_RAW_SIZE (regno), 1);
-	}
-    }
-
-  if (whatregs & WHATREGS_FLOAT)
-    {
-      struct fcontext fc;		/* fp regs */
-      int retval;
-
-/* We read fcontext first so that we can get good values for fq_t... */
-      errno = 0;
-      retval = ptrace (PTRACE_GETFPREGS, inferior_pid, (PTRACE_ARG3_TYPE) &fc,
-		       0);
-      if (errno)
-	perror_with_name ("ptrace(PTRACE_GETFPREGS)");
-  
-      memcpy (fc.f.fregs, &registers[REGISTER_BYTE (FP0_REGNUM)],
-	      32 * REGISTER_RAW_SIZE (FP0_REGNUM));
-
-      fc.fsr = read_register (FPS_REGNUM);
-
-      errno = 0;
-      retval = ptrace (PTRACE_SETFPREGS, inferior_pid, (PTRACE_ARG3_TYPE) &fc,
-		       0);
-      if (errno)
-	perror_with_name ("ptrace(PTRACE_SETFPREGS)");
-      }
-}
-#endif /* SPARC */
-
-#if defined (I386) || defined (M68K) || defined (rs6000)
-
-/* Return the offset relative to the start of the per-thread data to the
-   saved context block.  */
-
-static unsigned long
-registers_addr(pid)
-     int pid;
-{
-  CORE_ADDR stblock;
-  int ecpoff = offsetof(st_t, ecp);
-  CORE_ADDR ecp;
-
-  errno = 0;
-  stblock = (CORE_ADDR) ptrace (PTRACE_THREADUSER, pid, (PTRACE_ARG3_TYPE)0,
-				0);
-  if (errno)
-    perror_with_name ("ptrace(PTRACE_THREADUSER)");
-
-  ecp = (CORE_ADDR) ptrace (PTRACE_PEEKTHREAD, pid, (PTRACE_ARG3_TYPE)ecpoff,
-			    0);
-  if (errno)
-    perror_with_name ("ptrace(PTRACE_PEEKTHREAD)");
-
-  return ecp - stblock;
-}
-
-/* Fetch one or more registers from the inferior.  REGNO == -1 to get
-   them all.  We actually fetch more than requested, when convenient,
-   marking them as valid so we won't fetch them again.  */
-
-void
-fetch_inferior_registers (regno)
-     int regno;
-{
-  int reglo, reghi;
-  int i;
-  unsigned long ecp;
-
-  if (regno == -1)
-    {
-      reglo = 0;
-      reghi = NUM_REGS - 1;
-    }
-  else
-    reglo = reghi = regno;
-
-  ecp = registers_addr (inferior_pid);
-
-  for (regno = reglo; regno <= reghi; regno++)
-    {
-      char buf[MAX_REGISTER_RAW_SIZE];
-      int ptrace_fun = PTRACE_PEEKTHREAD;
-
-#ifdef M68K
-      ptrace_fun = regno == SP_REGNUM ? PTRACE_PEEKUSP : PTRACE_PEEKTHREAD;
-#endif
-
-      for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
-	{
-	  unsigned int reg;
-
-	  errno = 0;
-	  reg = ptrace (ptrace_fun, inferior_pid,
-			(PTRACE_ARG3_TYPE) (ecp + regmap[regno] + i), 0);
-	  if (errno)
-	    perror_with_name ("ptrace(PTRACE_PEEKUSP)");
-  
-	  *(int *)&buf[i] = reg;
-	}
-      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).  */
-
-/* Registers we shouldn't try to store.  */
-#if !defined (CANNOT_STORE_REGISTER)
-#define CANNOT_STORE_REGISTER(regno) 0
-#endif
-
-void
-store_inferior_registers (regno)
-     int regno;
-{
-  int reglo, reghi;
-  int i;
-  unsigned long ecp;
-
-  if (regno == -1)
-    {
-      reglo = 0;
-      reghi = NUM_REGS - 1;
-    }
-  else
-    reglo = reghi = regno;
-
-  ecp = registers_addr (inferior_pid);
-
-  for (regno = reglo; regno <= reghi; regno++)
-    {
-      int ptrace_fun = PTRACE_POKEUSER;
-
-      if (CANNOT_STORE_REGISTER (regno))
-	continue;
-
-#ifdef M68K
-      ptrace_fun = regno == SP_REGNUM ? PTRACE_POKEUSP : PTRACE_POKEUSER;
-#endif
-
-      for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
-	{
-	  unsigned int reg;
-
-	  reg = *(unsigned int *)&registers[REGISTER_BYTE (regno) + i];
-
-	  errno = 0;
-	  ptrace (ptrace_fun, inferior_pid,
-		  (PTRACE_ARG3_TYPE) (ecp + regmap[regno] + i), reg);
-	  if (errno)
-	    perror_with_name ("ptrace(PTRACE_POKEUSP)");
-	}
-    }
-}
-#endif /* defined (I386) || defined (M68K) || defined (rs6000) */
-
-/* Wait for child to do something.  Return pid of child, or -1 in case
-   of error; store status through argument pointer OURSTATUS.  */
-
-int
-child_wait (pid, ourstatus)
-     int pid;
-     struct target_waitstatus *ourstatus;
-{
-  int save_errno;
-  int thread;
-  union wait status;
-
-  while (1)
-    {
-      int sig;
-
-      set_sigint_trap();	/* Causes SIGINT to be passed on to the
-				   attached process. */
-      pid = wait (&status);
-
-      save_errno = errno;
-
-      clear_sigint_trap();
-
-      if (pid == -1)
-	{
-	  if (save_errno == EINTR)
-	    continue;
-	  fprintf_unfiltered (gdb_stderr, "Child process unexpectedly missing: %s.\n",
-		   safe_strerror (save_errno));
-	  /* Claim it exited with unknown signal.  */
-	  ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
-	  ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
-	  return -1;
-	}
-
-      if (pid != PIDGET (inferior_pid))	/* Some other process?!? */
-	continue;
-
-      thread = status.w_tid;	/* Get thread id from status */
-
-      /* Initial thread value can only be acquired via wait, so we have to
-	 resort to this hack.  */
-
-      if (TIDGET (inferior_pid) == 0 && thread != 0)
-	{
-	  inferior_pid = BUILDPID (inferior_pid, thread);
-	  add_thread (inferior_pid);
-	}
-
-      pid = BUILDPID (pid, thread);
-
-      /* We've become a single threaded process again.  */
-      if (thread == 0)
-	inferior_pid = pid;
-
-      /* Check for thread creation.  */
-      if (WIFSTOPPED(status)
-	  && WSTOPSIG(status) == SIGTRAP
-	  && !in_thread_list (pid))
-	{
-	  int realsig;
-
-	  realsig = ptrace (PTRACE_GETTRACESIG, pid, (PTRACE_ARG3_TYPE)0, 0);
-
-	  if (realsig == SIGNEWTHREAD)
-	    {
-	      /* It's a new thread notification.  We don't want to much with
-		 realsig -- the code in wait_for_inferior expects SIGTRAP. */
-	      ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
-	      ourstatus->value.sig = TARGET_SIGNAL_0;
-	      return pid;
-	    }
-	  else
-	    error ("Signal for unknown thread was not SIGNEWTHREAD");
-	}
-
-      /* Check for thread termination.  */
-      else if (WIFSTOPPED(status)
-	       && WSTOPSIG(status) == SIGTRAP
-	       && in_thread_list (pid))
-	{
-	  int realsig;
-
-	  realsig = ptrace (PTRACE_GETTRACESIG, pid, (PTRACE_ARG3_TYPE)0, 0);
-
-	  if (realsig == SIGTHREADEXIT)
-	    {
-	      ptrace (PTRACE_CONT, PIDGET (pid), (PTRACE_ARG3_TYPE)0, 0);
-	      continue;
-	    }
-	}
-
-#ifdef SPARC
-      /* SPARC Lynx uses an byte reversed wait status; we must use the
-	 host macros to access it.  These lines just a copy of
-	 store_waitstatus.  We can't use CHILD_SPECIAL_WAITSTATUS
-	 because target.c can't include the Lynx <sys/wait.h>.  */
-      if (WIFEXITED (status))
-	{
-	  ourstatus->kind = TARGET_WAITKIND_EXITED;
-	  ourstatus->value.integer = WEXITSTATUS (status);
-	}
-      else if (!WIFSTOPPED (status))
-	{
-	  ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
-	  ourstatus->value.sig =
-	    target_signal_from_host (WTERMSIG (status));
-	}
-      else
-	{
-	  ourstatus->kind = TARGET_WAITKIND_STOPPED;
-	  ourstatus->value.sig =
-	    target_signal_from_host (WSTOPSIG (status));
-	}
-#else
-      store_waitstatus (ourstatus, status.w_status);
-#endif
-
-      return pid;
-    }
-}
-
-/* Return nonzero if the given thread is still alive.  */
-int
-child_thread_alive (pid)
-     int pid;
-{
-  /* Arggh.  Apparently pthread_kill only works for threads within
-     the process that calls pthread_kill.
-
-     We want to avoid the lynx signal extensions as they simply don't
-     map well to the generic gdb interface we want to keep.
-
-     All we want to do is determine if a particular thread is alive;
-     it appears as if we can just make a harmless thread specific
-     ptrace call to do that.  */
-  return (ptrace (PTRACE_THREADUSER, pid, 0, 0) != -1);
-}
-
-/* Resume execution of the inferior process.
-   If STEP is nonzero, single-step it.
-   If SIGNAL is nonzero, give it that signal.  */
-
-void
-child_resume (pid, step, signal)
-     int pid;
-     int step;
-     enum target_signal signal;
-{
-  int func;
-
-  errno = 0;
-
-  /* If pid == -1, then we want to step/continue all threads, else
-     we only want to step/continue a single thread.  */
-  if (pid == -1)
-    {
-      pid = inferior_pid;
-      func = step ? PTRACE_SINGLESTEP : PTRACE_CONT;
-    }
-  else
-    func = step ? PTRACE_SINGLESTEP_ONE : PTRACE_CONT_ONE;
-
-
-  /* An address of (PTRACE_ARG3_TYPE)1 tells ptrace to continue from where
-     it was.  (If GDB wanted it to start some other way, we have already
-     written a new PC value to the child.)
-
-     If this system does not support PT_STEP, a higher level function will
-     have called single_step() to transmute the step request into a
-     continue request (by setting breakpoints on all possible successor
-     instructions), so we don't have to worry about that here.  */
-
-  ptrace (func, pid, (PTRACE_ARG3_TYPE) 1, target_signal_to_host (signal));
-
-  if (errno)
-    perror_with_name ("ptrace");
-}
-
-/* Convert a Lynx process ID to a string.  Returns the string in a static
-   buffer.  */
-
-char *
-lynx_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.
- */
-
-static void
-fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
-     char *core_reg_sect;
-     unsigned core_reg_size;
-     int which;
-     CORE_ADDR reg_addr;
-{
-  struct st_entry s;
-  unsigned int regno;
-
-  for (regno = 0; regno < NUM_REGS; regno++)
-    if (regmap[regno] != -1)
-      supply_register (regno, core_reg_sect + offsetof (st_t, ec)
-		       + regmap[regno]);
-
-#ifdef SPARC
-/* Fetching this register causes all of the I & L regs to be read from the
-   stack and validated.  */
-
-  fetch_inferior_registers (I0_REGNUM);
-#endif
-}
-
-
-/* Register that we are able to handle lynx core file formats.
-   FIXME: is this really bfd_target_unknown_flavour? */
-
-static struct core_fns lynx_core_fns =
-{
-  bfd_target_unknown_flavour,
-  fetch_core_registers,
-  NULL
-};
-
-void
-_initialize_core_lynx ()
-{
-  add_core_fns (&lynx_core_fns);
-}