* gdbserver/low-sun3.c: New file.

	* gdbserver/Makefile.in, config/m68k/sun3.mh: Change accordingly.

1 files changed, 39 insertions, 62 deletions

diff --git a/gdb/gdbserver/low-sun3.c b/gdb/gdbserver/low-sun3.c
index eb578ee..c318ff5 100644
--- a/gdb/gdbserver/low-sun3.c
+++ b/gdb/gdbserver/low-sun3.c
@@ -21,9 +21,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include "/usr/include/sys/wait.h"
 #include "frame.h"
 #include "inferior.h"
-/***************************
-#include "initialize.h"
-****************************/
 
 #include <stdio.h>
 #include <sys/param.h>
@@ -155,41 +152,27 @@ fetch_inferior_registers (ignored)
 {
   struct regs inferior_registers;
   struct fp_status inferior_fp_registers;
-  int i;
-
-  /* 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 (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;
-
-  /* Floating point registers */
 
-  if (ptrace (PTRACE_GETFPREGS, inferior_pid,
-	      (PTRACE_ARG3_TYPE) &inferior_fp_registers,
-	      0))
-    perror("ptrace_getfpregs");
+  ptrace (PTRACE_GETREGS, inferior_pid,
+	  (PTRACE_ARG3_TYPE) &inferior_registers);
+#ifdef FP0_REGNUM
+  ptrace (PTRACE_GETFPREGS, inferior_pid,
+	  (PTRACE_ARG3_TYPE) &inferior_fp_registers);
+#endif 
+  
+  memcpy (registers, &inferior_registers, 16 * 4);
+#ifdef FP0_REGNUM
   memcpy (&registers[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
-	  sizeof inferior_fp_registers.fpu_fr);
-
-  /* These regs are saved on the stack by the kernel.  Only read them
-     all (16 ptrace calls!) if we really need them.  */
-
-  read_inferior_memory (*(CORE_ADDR*)&registers[REGISTER_BYTE (SP_REGNUM)],
-			&registers[REGISTER_BYTE (L0_REGNUM)],
-			16*REGISTER_RAW_SIZE (L0_REGNUM));
+	  sizeof inferior_fp_registers.fps_regs);
+#endif 
+  *(int *)&registers[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps;
+  *(int *)&registers[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc;
+#ifdef FP0_REGNUM
+  memcpy
+    (&registers[REGISTER_BYTE (FPC_REGNUM)],
+     &inferior_fp_registers.fps_control,
+     sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs);
+#endif 
 }
 
 /* Store our register values back into the inferior.
@@ -202,33 +185,27 @@ store_inferior_registers (ignored)
 {
   struct regs inferior_registers;
   struct fp_status inferior_fp_registers;
-  CORE_ADDR sp = *(CORE_ADDR *)&registers[REGISTER_BYTE (SP_REGNUM)];
-
-  write_inferior_memory (sp, &registers[REGISTER_BYTE (L0_REGNUM)],
-			 16*REGISTER_RAW_SIZE (L0_REGNUM));
-
-  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 (ptrace (PTRACE_SETREGS, inferior_pid,
-	      (PTRACE_ARG3_TYPE) &inferior_registers, 0))
-    perror("ptrace_setregs");
-
-  memcpy (&inferior_fp_registers, &registers[REGISTER_BYTE (FP0_REGNUM)],
-	  sizeof inferior_fp_registers.fpu_fr);
 
-  if (ptrace (PTRACE_SETFPREGS, inferior_pid,
-	      (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0))
-    perror("ptrace_setfpregs");
+  bcopy (registers, &inferior_registers, 16 * 4);
+#ifdef FP0_REGNUM
+  bcopy (&registers[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
+	 sizeof inferior_fp_registers.fps_regs);
+#endif
+  inferior_registers.r_ps = *(int *)&registers[REGISTER_BYTE (PS_REGNUM)];
+  inferior_registers.r_pc = *(int *)&registers[REGISTER_BYTE (PC_REGNUM)];
+
+#ifdef FP0_REGNUM
+  bcopy (&registers[REGISTER_BYTE (FPC_REGNUM)],
+	 &inferior_fp_registers.fps_control,
+	 sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs);
+#endif
+
+  ptrace (PTRACE_SETREGS, inferior_pid,
+	  (PTRACE_ARG3_TYPE) &inferior_registers);
+#if FP0_REGNUM
+  ptrace (PTRACE_SETFPREGS, inferior_pid,
+	  (PTRACE_ARG3_TYPE) &inferior_fp_registers);
+#endif
 }
 
 /* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory