X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fultra3-xdep.c;h=83aa7709bcdc21a2ead881510f0bb9f36832c4aa;hb=e8475ad46302c0439093e9e25d631e56331f20e4;hp=35eff11691c7ca8aeb1de46c641e63ac3e6872b1;hpb=7d9884b92772d5b4fa0de57de5caca2d9308c16c;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/ultra3-xdep.c b/gdb/ultra3-xdep.c
index 35eff11691..83aa7709bc 100644
--- a/gdb/ultra3-xdep.c
+++ b/gdb/ultra3-xdep.c
@@ -1,25 +1,25 @@
 /* Host-dependent code for GDB, for NYU Ultra3 running Sym1 OS.
-   Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc.
+   Copyright (C) 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
    Contributed by David Wood (wood@nyu.edu) at New York University.
 
-This file is part of GDB.
+   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 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.
+   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.  */
+   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.  */
 
 #define DEBUG
-#include <stdio.h>
 #include "defs.h"
 #include "frame.h"
 #include "inferior.h"
@@ -30,276 +30,12 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include <sys/param.h>
 #include <signal.h>
 #include <sys/ioctl.h>
-#include <fcntl.h>  
+#include <fcntl.h>
 
 #include "gdbcore.h"
 
 #include <sys/file.h>
-#include <sys/stat.h>
-#include <sys/ptrace.h>
-
-/* Assumes support for AMD's Binary Compatibility Standard
-   for ptrace().  If you define ULTRA3, the ultra3 extensions to
-   ptrace() are used allowing the reading of more than one register
-   at a time. 
-
-   This file assumes KERNEL_DEBUGGING is turned off.  This means
-   that if the user/gdb tries to read gr64-gr95 or any of the 
-   protected special registers we silently return -1 (see the
-   CANNOT_STORE/FETCH_REGISTER macros).  */
-#define	ULTRA3
-
-#if !defined (offsetof)
-# define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
-#endif
-
-extern int errno;
-struct ptrace_user pt_struct;
-
-/* 
- * Fetch an individual register (and supply it).
- * return 0 on success, -1 on failure.
- * NOTE: Assumes AMD's Binary Compatibility Standard for ptrace().
- */
-static void
-fetch_register (regno)
-     int regno;
-{
-  char buf[128];
-  int	val;
-
-  if (CANNOT_FETCH_REGISTER(regno)) {
-    val = -1;
-    supply_register (regno, &val);
-  } else {
-    errno = 0;
-    val = ptrace (PT_READ_U, inferior_pid, (int*)register_addr(regno,0), 0);
-    if (errno != 0) {
-      sprintf(buf,"reading register %s (#%d)",reg_names[regno],regno);
-      perror_with_name (buf);
-    } else {
-      supply_register (regno, &val);
-    }
-  }
-}
-
-/* Get all available registers from the inferior.  Registers that are
- * defined in REGISTER_NAMES, but not available to the user/gdb are
- * supplied as -1.  This may include gr64-gr95 and the protected special
- * purpose registers.
- */
-
-void
-fetch_inferior_registers (regno)
-  int regno;
-{
-  register int i,j,ret_val=0;
-  char buf[128];
-
-  if (regno != -1) {
-    fetch_register (regno);
-    return;
-  }
-
-/* Global Registers */
-#ifdef ULTRA3
-  errno = 0;
-  ptrace (PT_READ_STRUCT, inferior_pid, (int*)register_addr(GR96_REGNUM,0), 
-					(int)&pt_struct.pt_gr[0], 32*4);
-  if (errno != 0) {
-      perror_with_name ("reading global registers");
-      ret_val = -1;
-  } else for (regno=GR96_REGNUM, j=0 ; j<32 ; regno++, j++)  {
-      supply_register (regno, &pt_struct.pt_gr[j]);
-  }
-#else
-  for (regno=GR96_REGNUM ; !ret_val && regno < GR96_REGNUM+32 ; regno++)
-    fetch_register(regno);
-#endif
-
-/* Local Registers */
-#ifdef ULTRA3
-  errno = 0;
-  ptrace (PT_READ_STRUCT, inferior_pid, (int*)register_addr(LR0_REGNUM,0), 
-					(int)&pt_struct.pt_lr[0], 128*4);
-  if (errno != 0) {
-      perror_with_name ("reading local registers");
-      ret_val = -1;
-  } else for (regno=LR0_REGNUM, j=0 ; j<128 ; regno++, j++)  {
-      supply_register (regno, &pt_struct.pt_lr[j]);
-  }
-#else
-  for (regno=LR0_REGNUM ; !ret_val && regno < LR0_REGNUM+128 ; regno++)
-    fetch_register(regno);
-#endif
-
-/* Special Registers */
-  fetch_register(GR1_REGNUM);
-  fetch_register(CPS_REGNUM);
-  fetch_register(PC_REGNUM);
-  fetch_register(NPC_REGNUM);
-  fetch_register(PC2_REGNUM);
-  fetch_register(IPC_REGNUM);
-  fetch_register(IPA_REGNUM);
-  fetch_register(IPB_REGNUM);
-  fetch_register(Q_REGNUM);
-  fetch_register(BP_REGNUM);
-  fetch_register(FC_REGNUM);
-
-/* Fake any registers that are in REGISTER_NAMES, but not available to gdb */ 
-  registers_fetched();
-}
-
-/* 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).  
- * NOTE: Assumes AMD's binary compatibility standard. 
- */
-
-int
-store_inferior_registers (regno)
-     int regno;
-{
-  register unsigned int regaddr;
-  char buf[80];
-
-  if (regno >= 0)
-    {
-      if (CANNOT_STORE_REGISTER(regno)) 
-	return 0;			/*  Pretend success */
-      regaddr = register_addr (regno, 0);
-      errno = 0;
-      ptrace (PT_WRITE_U, inferior_pid,(int*)regaddr,read_register(regno));
-      if (errno != 0)
-	{
-	  sprintf (buf, "writing register %s (#%d)", reg_names[regno],regno);
-	  perror_with_name (buf);
-	}
-    }
-  else
-    {
-#ifdef ULTRA3
-      pt_struct.pt_gr1 = read_register(GR1_REGNUM);
-      for (regno = GR96_REGNUM; regno < GR96_REGNUM+32; regno++)
-	pt_struct.pt_gr[regno] = read_register(regno);
-      for (regno = LR0_REGNUM; regno < LR0_REGNUM+128; regno++)
-	pt_struct.pt_gr[regno] = read_register(regno);
-      errno = 0;
-      ptrace (PT_WRITE_STRUCT, inferior_pid, (int*)register_addr(GR1_REGNUM,0), 
-				(int)&pt_struct.pt_gr1,(1*32*128)*4);
-      if (errno != 0)
-	{
-	   sprintf (buf, "writing all local/global registers");
-	   perror_with_name (buf);
-	}
-      pt_struct.pt_psr = read_register(CPS_REGNUM);
-      pt_struct.pt_pc0 = read_register(NPC_REGNUM);
-      pt_struct.pt_pc1 = read_register(PC_REGNUM);
-      pt_struct.pt_pc2 = read_register(PC2_REGNUM);
-      pt_struct.pt_ipc = read_register(IPC_REGNUM);
-      pt_struct.pt_ipa = read_register(IPA_REGNUM);
-      pt_struct.pt_ipb = read_register(IPB_REGNUM);
-      pt_struct.pt_q   = read_register(Q_REGNUM);
-      pt_struct.pt_bp  = read_register(BP_REGNUM);
-      pt_struct.pt_fc  = read_register(FC_REGNUM);
-      errno = 0;
-      ptrace (PT_WRITE_STRUCT, inferior_pid, (int*)register_addr(CPS_REGNUM,0), 
-				(int)&pt_struct.pt_psr,(10)*4);
-      if (errno != 0)
-	{
-	   sprintf (buf, "writing all special registers");
-	   perror_with_name (buf);
- 	   return -1;
-	}
-#else
-      store_inferior_registers(GR1_REGNUM);
-      for (regno=GR96_REGNUM ; regno<GR96_REGNUM+32 ; regno++)
-	store_inferior_registers(regno);
-      for (regno=LR0_REGNUM ; regno<LR0_REGNUM+128 ; regno++)
-	store_inferior_registers(regno);
-      store_inferior_registers(CPS_REGNUM);
-      store_inferior_registers(PC_REGNUM);
-      store_inferior_registers(NPC_REGNUM);
-      store_inferior_registers(PC2_REGNUM);
-      store_inferior_registers(IPC_REGNUM);
-      store_inferior_registers(IPA_REGNUM);
-      store_inferior_registers(IPB_REGNUM);
-      store_inferior_registers(Q_REGNUM);
-      store_inferior_registers(BP_REGNUM);
-      store_inferior_registers(FC_REGNUM);
-#endif	/* ULTRA3 */
-    }
-  return 0;
-}
-
-/* 
- * Read AMD's Binary Compatibilty Standard conforming core file.
- * struct ptrace_user is the first thing in the core file
- */
-void
-fetch_core_registers ()
-{
-  register int regno;
-  int	val;
-  char	buf[4];
-
-  for (regno = 0 ; regno < NUM_REGS; regno++) {
-    if (!CANNOT_FETCH_REGISTER(regno)) {
-      val = bfd_seek (core_bfd, register_addr (regno, 0), 0);
-      if (val < 0 || (val = bfd_read (buf, sizeof buf, 1, core_bfd)) < 0) {
-        char * buffer = (char *) alloca (strlen (reg_names[regno]) + 35);
-        strcpy (buffer, "Reading core register ");
-        strcat (buffer, reg_names[regno]);
-        perror_with_name (buffer);
-      }
-      supply_register (regno, buf);
-    }
-  }
-
-  /* Fake any registers that are in REGISTER_NAMES, but not available to gdb */ 
-  registers_fetched();
-}
-
-
-/*  
- * Takes a register number as defined in tm.h via REGISTER_NAMES, and maps
- * it to an offset in a struct ptrace_user defined by AMD's BCS.
- * That is, it defines the mapping between gdb register numbers and items in
- * a struct ptrace_user.
- * A register protection scheme is set up here.  If a register not
- * available to the user is specified in 'regno', then an address that
- * will cause ptrace() to fail is returned.
- */
-unsigned int 
-register_addr (regno,blockend)
-     unsigned int	regno;
-     char		*blockend;
-{
-  if ((regno >= LR0_REGNUM) && (regno < LR0_REGNUM + 128)) {
-    return(offsetof(struct ptrace_user,pt_lr[regno-LR0_REGNUM]));
-  } else if ((regno >= GR96_REGNUM) && (regno < GR96_REGNUM + 32)) {
-    return(offsetof(struct ptrace_user,pt_gr[regno-GR96_REGNUM]));
-  } else {
-    switch (regno) {
-	case GR1_REGNUM: return(offsetof(struct ptrace_user,pt_gr1));
-	case CPS_REGNUM: return(offsetof(struct ptrace_user,pt_psr));
-	case NPC_REGNUM: return(offsetof(struct ptrace_user,pt_pc0));
-	case PC_REGNUM:  return(offsetof(struct ptrace_user,pt_pc1));
-	case PC2_REGNUM: return(offsetof(struct ptrace_user,pt_pc2));
-	case IPC_REGNUM: return(offsetof(struct ptrace_user,pt_ipc));
-	case IPA_REGNUM: return(offsetof(struct ptrace_user,pt_ipa));
-	case IPB_REGNUM: return(offsetof(struct ptrace_user,pt_ipb));
-	case Q_REGNUM:   return(offsetof(struct ptrace_user,pt_q));
-	case BP_REGNUM:  return(offsetof(struct ptrace_user,pt_bp));
-	case FC_REGNUM:  return(offsetof(struct ptrace_user,pt_fc));
-	default:
-	     fprintf_filtered(stderr,"register_addr():Bad register %s (%d)\n", 
-				reg_names[regno],regno);
-	     return(0xffffffff);	/* Should make ptrace() fail */
-    }
-  }
-}
-
+#include "gdb_stat.h"
 
 /* Assorted operating system circumventions */
 
@@ -307,86 +43,99 @@ register_addr (regno,blockend)
 
 /* FIXME: Kludge this for now. It really should be system call. */
 int
-getpagesize()
-{ return(8192); }
+getpagesize ()
+{
+  return (8192);
+}
 
 /* FIXME: Fake out the fcntl() call, which we don't have.  */
-fcntl(fd, cmd, arg)
-int fd, cmd, arg;
+fcntl (fd, cmd, arg)
+     int fd, cmd, arg;
 {
 
-  switch (cmd) {
-	case F_GETFL: return(O_RDONLY);	break;
-	default:	
-		printf("Ultra3's fcntl() failing, cmd = %d.\n",cmd);
-		return(-1);
-  }
+  switch (cmd)
+    {
+    case F_GETFL:
+      return (O_RDONLY);
+      break;
+    default:
+      printf_unfiltered ("Ultra3's fcntl() failing, cmd = %d.\n", cmd);
+      return (-1);
+    }
 }
 
 
 /* 
  * 4.2 Signal support, requires linking with libjobs.
  */
-static int	_SigMask;
+static int _SigMask;
 #define sigbit(s)       (1L << ((s)-1))
 
-init_SigMask()
+init_SigMask ()
 {
-	/* Taken from the sym1 kernel in machdep.c:startup() */
-	_SigMask = sigbit (SIGTSTP) | sigbit (SIGTTOU) | sigbit (SIGTTIN) |
-                        sigbit (SIGCHLD) | sigbit (SIGTINT);
+  /* Taken from the sym1 kernel in machdep.c:startup() */
+  _SigMask = sigbit (SIGTSTP) | sigbit (SIGTTOU) | sigbit (SIGTTIN) |
+    sigbit (SIGCHLD) | sigbit (SIGTINT);
 }
 
-sigmask(signo)
-	int signo;
+sigmask (signo)
+     int signo;
 {
-	return (1 << (signo-1));
+  return (1 << (signo - 1));
 }
 
-sigsetmask(sigmask)
-unsigned int sigmask;
+sigsetmask (sigmask)
+     unsigned int sigmask;
 {
-	int i, mask = 1;
-	int lastmask = _SigMask;
+  int i, mask = 1;
+  int lastmask = _SigMask;
 
-	for (i=0 ; i<NSIG ; i++) {
-		if (sigmask & mask) { 
-			if (!(_SigMask & mask)) {
-				sighold(i+1);
-				_SigMask |= mask;
-			}
-		} else if (_SigMask & mask) {
-			sigrelse(i+1);
-			_SigMask &= ~mask;
-		}
-		mask <<= 1;
+  for (i = 0; i < NSIG; i++)
+    {
+      if (sigmask & mask)
+	{
+	  if (!(_SigMask & mask))
+	    {
+	      sighold (i + 1);
+	      _SigMask |= mask;
+	    }
+	}
+      else if (_SigMask & mask)
+	{
+	  sigrelse (i + 1);
+	  _SigMask &= ~mask;
 	}
-	return (lastmask);
+      mask <<= 1;
+    }
+  return (lastmask);
 }
 
-sigblock(sigmask)
-unsigned int sigmask;
+sigblock (sigmask)
+     unsigned int sigmask;
 {
-	int i, mask = 1;
-	int lastmask = _SigMask;
+  int i, mask = 1;
+  int lastmask = _SigMask;
 
-	for (i=0 ; i<NSIG ; i++) {
-		if ((sigmask & mask) && !(_SigMask & mask)) {
-			sighold(i+1);
-			_SigMask |= mask;
-		}
-		mask <<= 1;
+  for (i = 0; i < NSIG; i++)
+    {
+      if ((sigmask & mask) && !(_SigMask & mask))
+	{
+	  sighold (i + 1);
+	  _SigMask |= mask;
 	}
-	return (lastmask);
+      mask <<= 1;
+    }
+  return (lastmask);
 }
 #endif /* SYM1 */
 
 
 /* Initialization code for this module.  */
 
+void
 _initialize_ultra3 ()
 {
 #ifdef SYM1
-	init_SigMask();
+  init_SigMask ();
 #endif
 }