Native file renaming.

* nat-sparc.c -> sparc-nat.c
* nat-sun4os4.h -> nm-sun4os4.h
* nat-trash.h -> nm-trash.h
* configure.in: link to nm.h rather than nat.h.
* infptrace.c: include nm.h rather than nat.h.

7 files changed, 346 insertions, 10 deletions

diff --git a/gdb/.Sanitize b/gdb/.Sanitize
index 21a8b8a..7eeaee3 100644
--- a/gdb/.Sanitize
+++ b/gdb/.Sanitize
@@ -64,8 +64,8 @@ convx-opcode.h
 copying.awk
 copying.c
 core.c
-corelow.c
 coredep.c
+corelow.c
 createtags
 dbxread.c
 defs.h
@@ -138,12 +138,11 @@ mips-tdep.c
 mips-xdep.c
 mipsread.c
 munch
-nat-sparc.c
-nat-sun4os4.h
-nat-trash.h
 news-xdep.c
 nindy-share
 nindy-tdep.c
+nm-sun4os4.h
+nm-trash.h
 ns32k-opcode.h
 ns32k-pinsn.c
 objfiles.c
@@ -182,6 +181,7 @@ signals.h
 solib.c
 solib.h
 source.c
+sparc-nat.c
 sparc-pinsn.c
 sparc-stub.c
 sparc-tdep.c
@@ -206,9 +206,9 @@ target.h
 terminal.h
 tm-29k.h
 tm-3b1.h
-tm-68k.h
 tm-68k-noun.h
 tm-68k-un.h
+tm-68k.h
 tm-altos.h
 tm-amix.h
 tm-arm.h
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 2a73618..1a770cf 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,13 @@
+Wed Sep 30 15:33:22 1992  K. Richard Pixley  (rich@sendai.cygnus.com)
+
+	Native file renaming.
+
+	* nat-sparc.c -> sparc-nat.c
+	* nat-sun4os4.h -> nm-sun4os4.h
+	* nat-trash.h -> nm-trash.h
+	* configure.in: link to nm.h rather than nat.h.
+	* infptrace.c: include nm.h rather than nat.h.
+
 Tue Sep 29 14:35:00 1992  K. Richard Pixley  (rich@sendai.cygnus.com)
 
 	Host/target/native split for sun4.
diff --git a/gdb/config/sun4os4.mh b/gdb/config/sun4os4.mh
index 021e4d0..733cc86 100644
--- a/gdb/config/sun4os4.mh
+++ b/gdb/config/sun4os4.mh
@@ -1,5 +1,5 @@
 # Host: Sun 4 or Sparcstation, running SunOS 4
 XDEPFILES= fork-child.o ser-bsd.o
 XM_FILE= xm-sun4os4.h
-NAT_FILE= nat-sun4os4.h
-NATDEPFILES= inftarg.o infptrace.o inftarg.o corelow.o nat-sparc.o
+NAT_FILE= nm-sun4os4.h
+NATDEPFILES= inftarg.o infptrace.o inftarg.o corelow.o sparc-nat.o
diff --git a/gdb/configure.in b/gdb/configure.in
index 4190f6f..dd527e9 100644
--- a/gdb/configure.in
+++ b/gdb/configure.in
@@ -260,12 +260,12 @@ fi
 rm -f nat.h
 if [ "${nativefile}" != "" ]; then
 	files="${files} ${nativefile}"
-	links="${links} nat.h"
+	links="${links} nm.h"
 # temporary scaffolding until all hosts have the host/target/native
 # split in place.
 else
-	files="${files} nat-trash.h"
-	links="${links} nat.h"
+	files="${files} nm-trash.h"
+	links="${links} nm.h"
 fi
 
 # post-target:
diff --git a/gdb/nm-sun4os4.h b/gdb/nm-sun4os4.h
new file mode 100644
index 0000000..d871289
--- /dev/null
+++ b/gdb/nm-sun4os4.h
@@ -0,0 +1,27 @@
+/* Macro definitions for running gdb on a Sun 4 running sunos 4.
+   Copyright (C) 1989, 1992, 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.  */
+
+/* Do implement the attach and detach commands.  */
+
+#define ATTACH_DETACH
+
+/* Override copies of {fetch,store}_inferior_registers in infptrace.c.  */
+
+#define FETCH_INFERIOR_REGISTERS
+
diff --git a/gdb/nm-trash.h b/gdb/nm-trash.h
new file mode 100644
index 0000000..38bed5a
--- /dev/null
+++ b/gdb/nm-trash.h
@@ -0,0 +1,2 @@
+/* this file is temporary scaffolding until all hosts have the
+   native/target/host split in place.  FIXME.  */
diff --git a/gdb/sparc-nat.c b/gdb/sparc-nat.c
new file mode 100644
index 0000000..6b84363
--- /dev/null
+++ b/gdb/sparc-nat.c
@@ -0,0 +1,297 @@
+/* Functions specific to running gdb native on a Sun 4 running sunos4.
+   Copyright (C) 1989, 1992, 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 "inferior.h"
+#include "target.h"
+#include "nm.h"
+
+#include <signal.h>
+#include <sys/ptrace.h>
+#include <sys/wait.h>
+#include <machine/reg.h>
+
+/* We don't store all registers immediately when requested, since they
+   get sent over in large chunks anyway.  Instead, we accumulate most
+   of the changes and send them over once.  "deferred_stores" keeps
+   track of which sets of registers we have locally-changed copies of,
+   so we only need send the groups that have changed.  */
+
+#define	INT_REGS	1
+#define	STACK_REGS	2
+#define	FP_REGS		4
+
+/* 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;
+{
+  struct regs inferior_registers;
+  struct fp_status inferior_fp_registers;
+  int i;
+
+  /* We should never be called with deferred stores, because a prerequisite
+     for writing regs is to have fetched them all (PREPARE_TO_STORE), sigh.  */
+  if (deferred_stores) abort();
+
+  DO_DEFERRED_STORES;
+
+  /* Global and Out regs are fetched directly, as well as the control
+     registers.  If we're getting one of the in or local regs,
+     and the stack pointer has not yet been fetched,
+     we have to do that first, since they're found in memory relative
+     to the stack pointer.  */
+  if (regno < O7_REGNUM  /* including -1 */
+      || regno >= Y_REGNUM
+      || (!register_valid[SP_REGNUM] && regno < I7_REGNUM))
+    {
+      if (0 != ptrace (PTRACE_GETREGS, inferior_pid,
+		       (PTRACE_ARG3_TYPE) &inferior_registers, 0))
+	perror("ptrace_getregs");
+      
+      registers[REGISTER_BYTE (0)] = 0;
+      memcpy (&registers[REGISTER_BYTE (1)], &inferior_registers.r_g1,
+	      15 * REGISTER_RAW_SIZE (G0_REGNUM));
+      *(int *)&registers[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps; 
+      *(int *)&registers[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc;
+      *(int *)&registers[REGISTER_BYTE (NPC_REGNUM)] = inferior_registers.r_npc;
+      *(int *)&registers[REGISTER_BYTE (Y_REGNUM)] = inferior_registers.r_y;
+
+      for (i = G0_REGNUM; i <= O7_REGNUM; i++)
+	register_valid[i] = 1;
+      register_valid[Y_REGNUM] = 1;
+      register_valid[PS_REGNUM] = 1;
+      register_valid[PC_REGNUM] = 1;
+      register_valid[NPC_REGNUM] = 1;
+      /* If we don't set these valid, read_register_bytes() rereads
+	 all the regs every time it is called!  FIXME.  */
+      register_valid[WIM_REGNUM] = 1;	/* Not true yet, FIXME */
+      register_valid[TBR_REGNUM] = 1;	/* Not true yet, FIXME */
+      register_valid[FPS_REGNUM] = 1;	/* Not true yet, FIXME */
+      register_valid[CPS_REGNUM] = 1;	/* Not true yet, FIXME */
+    }
+
+  /* Floating point registers */
+  if (regno == -1 || (regno >= FP0_REGNUM && regno <= FP0_REGNUM + 31))
+    {
+      if (0 != ptrace (PTRACE_GETFPREGS, inferior_pid,
+		       (PTRACE_ARG3_TYPE) &inferior_fp_registers,
+		       0))
+	    perror("ptrace_getfpregs");
+      memcpy (&registers[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
+	      sizeof inferior_fp_registers.fpu_fr);
+      /* bcopy (&inferior_fp_registers.Fpu_fsr,
+	     &registers[REGISTER_BYTE (FPS_REGNUM)],
+	     sizeof (FPU_FSR_TYPE));  FIXME???  -- gnu@cyg */
+      for (i = FP0_REGNUM; i <= FP0_REGNUM+31; i++)
+	register_valid[i] = 1;
+      register_valid[FPS_REGNUM] = 1;
+    }
+
+  /* These regs are saved on the stack by the kernel.  Only read them
+     all (16 ptrace calls!) if we really need them.  */
+  if (regno == -1)
+    {
+      target_xfer_memory (*(CORE_ADDR*)&registers[REGISTER_BYTE (SP_REGNUM)],
+		          &registers[REGISTER_BYTE (L0_REGNUM)],
+			  16*REGISTER_RAW_SIZE (L0_REGNUM), 0);
+      for (i = L0_REGNUM; i <= I7_REGNUM; i++)
+	register_valid[i] = 1;
+    }
+  else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
+    {
+      CORE_ADDR sp = *(CORE_ADDR*)&registers[REGISTER_BYTE (SP_REGNUM)];
+      i = REGISTER_BYTE (regno);
+      if (register_valid[regno])
+	printf("register %d valid and read\n", regno);
+      target_xfer_memory (sp + i - REGISTER_BYTE (L0_REGNUM),
+			  &registers[i], REGISTER_RAW_SIZE (regno), 0);
+      register_valid[regno] = 1;
+    }
+}
+
+/* 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).  */
+
+void
+store_inferior_registers (regno)
+     int regno;
+{
+  struct regs inferior_registers;
+  struct fp_status inferior_fp_registers;
+  int wanna_store = INT_REGS + STACK_REGS + FP_REGS;
+
+  /* First decide which pieces of machine-state we need to modify.  
+     Default for regno == -1 case is all pieces.  */
+  if (regno >= 0)
+    if (FP0_REGNUM <= regno && regno < FP0_REGNUM + 32)
+      {
+	wanna_store = FP_REGS;
+      }
+    else 
+      {
+	if (regno == SP_REGNUM)
+	  wanna_store = INT_REGS + STACK_REGS;
+	else if (regno < L0_REGNUM || regno > I7_REGNUM)
+	  wanna_store = INT_REGS;
+	else
+	  wanna_store = STACK_REGS;
+      }
+
+  /* See if we're forcing the stores to happen now, or deferring. */
+  if (regno == -2)
+    {
+      wanna_store = deferred_stores;
+      deferred_stores = 0;
+    }
+  else
+    {
+      if (wanna_store == STACK_REGS)
+	{
+	  /* Fall through and just store one stack reg.  If we deferred
+	     it, we'd have to store them all, or remember more info.  */
+	}
+      else
+	{
+	  deferred_stores |= wanna_store;
+	  return;
+	}
+    }
+
+  if (wanna_store & STACK_REGS)
+    {
+      CORE_ADDR sp = *(CORE_ADDR *)&registers[REGISTER_BYTE (SP_REGNUM)];
+
+      if (regno < 0 || regno == SP_REGNUM)
+	{
+	  if (!register_valid[L0_REGNUM+5]) abort();
+	  target_xfer_memory (sp, 
+			      &registers[REGISTER_BYTE (L0_REGNUM)],
+			      16*REGISTER_RAW_SIZE (L0_REGNUM), 1);
+	}
+      else
+	{
+	  if (!register_valid[regno]) abort();
+	  target_xfer_memory (sp + REGISTER_BYTE (regno) - REGISTER_BYTE (L0_REGNUM),
+			      &registers[REGISTER_BYTE (regno)],
+			      REGISTER_RAW_SIZE (regno), 1);
+	}
+	
+    }
+
+  if (wanna_store & INT_REGS)
+    {
+      if (!register_valid[G1_REGNUM]) abort();
+
+      memcpy (&inferior_registers.r_g1, &registers[REGISTER_BYTE (G1_REGNUM)],
+	      15 * REGISTER_RAW_SIZE (G1_REGNUM));
+
+      inferior_registers.r_ps =
+	*(int *)&registers[REGISTER_BYTE (PS_REGNUM)];
+      inferior_registers.r_pc =
+	*(int *)&registers[REGISTER_BYTE (PC_REGNUM)];
+      inferior_registers.r_npc =
+	*(int *)&registers[REGISTER_BYTE (NPC_REGNUM)];
+      inferior_registers.r_y =
+	*(int *)&registers[REGISTER_BYTE (Y_REGNUM)];
+
+      if (0 != ptrace (PTRACE_SETREGS, inferior_pid,
+		       (PTRACE_ARG3_TYPE) &inferior_registers, 0))
+	perror("ptrace_setregs");
+    }
+
+  if (wanna_store & FP_REGS)
+    {
+      if (!register_valid[FP0_REGNUM+9]) abort();
+      memcpy (&inferior_fp_registers, &registers[REGISTER_BYTE (FP0_REGNUM)],
+	      sizeof inferior_fp_registers.fpu_fr);
+
+/*    memcpy (&inferior_fp_registers.Fpu_fsr, 
+	      &registers[REGISTER_BYTE (FPS_REGNUM)], sizeof (FPU_FSR_TYPE));
+****/
+      if (0 !=
+	 ptrace (PTRACE_SETFPREGS, inferior_pid,
+		 (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0))
+	 perror("ptrace_setfpregs");
+    }
+}
+
+
+void
+fetch_core_registers (core_reg_sect, core_reg_size, which, ignore)
+  char *core_reg_sect;
+  unsigned core_reg_size;
+  int which;
+  unsigned int ignore;	/* reg addr, unused in this version */
+{
+
+  if (which == 0) {
+
+    /* Integer registers */
+
+#define gregs ((struct regs *)core_reg_sect)
+    /* G0 *always* holds 0.  */
+    *(int *)&registers[REGISTER_BYTE (0)] = 0;
+
+    /* The globals and output registers.  */
+    memcpy (&registers[REGISTER_BYTE (G1_REGNUM)], &gregs->r_g1, 
+	    15 * REGISTER_RAW_SIZE (G1_REGNUM));
+    *(int *)&registers[REGISTER_BYTE (PS_REGNUM)] = gregs->r_ps;
+    *(int *)&registers[REGISTER_BYTE (PC_REGNUM)] = gregs->r_pc;
+    *(int *)&registers[REGISTER_BYTE (NPC_REGNUM)] = gregs->r_npc;
+    *(int *)&registers[REGISTER_BYTE (Y_REGNUM)] = gregs->r_y;
+
+    /* My best guess at where to get the locals and input
+       registers is exactly where they usually are, right above
+       the stack pointer.  If the core dump was caused by a bus error
+       from blowing away the stack pointer (as is possible) then this
+       won't work, but it's worth the try. */
+    {
+      int sp;
+
+      sp = *(int *)&registers[REGISTER_BYTE (SP_REGNUM)];
+      if (0 != target_read_memory (sp, &registers[REGISTER_BYTE (L0_REGNUM)], 
+			  16 * REGISTER_RAW_SIZE (L0_REGNUM)))
+	{
+	  /* fprintf so user can still use gdb */
+	  fprintf (stderr,
+		   "Couldn't read input and local registers from core file\n");
+	}
+    }
+  } else if (which == 2) {
+
+    /* Floating point registers */
+
+#define fpuregs  ((struct fpu *) core_reg_sect)
+    if (core_reg_size >= sizeof (struct fpu))
+      {
+	memcpy (&registers[REGISTER_BYTE (FP0_REGNUM)], fpuregs->fpu_regs,
+		sizeof (fpuregs->fpu_regs));
+	memcpy (&registers[REGISTER_BYTE (FPS_REGNUM)], &fpuregs->fpu_fsr,
+		sizeof (FPU_FSR_TYPE));
+      }
+    else
+      fprintf (stderr, "Couldn't read float regs from core file\n");
+  }
+}
+