Johns release

1 files changed, 129 insertions, 0 deletions

diff --git a/gdb/pyr-tdep.c b/gdb/pyr-tdep.c
new file mode 100644
index 0000000..b79ea0c
--- /dev/null
+++ b/gdb/pyr-tdep.c
@@ -0,0 +1,129 @@
+/* Low level interface to ptrace, for GDB when running under Unix.
+   Copyright (C) 1988, 1989 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+GDB 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 1, or (at your option)
+any later version.
+
+GDB 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 GDB; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/*** Prettier register printing. ***/
+
+/* Print registers in the same format as pyramid's dbx, adb, sdb.  */
+pyr_print_registers(reg_buf, regnum)
+    long *reg_buf[];
+{
+  register int regno;
+  int usp, ksp;
+  struct user u;
+
+  for (regno = 0; regno < 16; regno++) {
+    printf/*_filtered*/ ("%6.6s: %8x  %6.6s: %8x  %6s: %8x  %6s: %8x\n",
+		     reg_names[regno], reg_buf[regno],
+		     reg_names[regno+16], reg_buf[regno+16],
+		     reg_names[regno+32], reg_buf[regno+32],
+		     reg_names[regno+48], reg_buf[regno+48]);
+  }
+  usp = ptrace (3, inferior_pid,
+		      ((char *)&u.u_pcb.pcb_usp) -
+		      ((char *)&u), 0);
+  ksp = ptrace (3, inferior_pid,
+		      ((char *)&u.u_pcb.pcb_ksp) -
+		      ((char *)&u), 0);
+  printf/*_filtered*/ ("\n%6.6s: %8x  %6.6s: %8x (%08x) %6.6s %8x\n",
+		   reg_names[CSP_REGNUM],reg_buf[CSP_REGNUM],
+		   reg_names[KSP_REGNUM], reg_buf[KSP_REGNUM], ksp,
+		   "usp", usp);
+}
+
+/* Print the register regnum, or all registers if regnum is -1. */
+
+pyr_do_registers_info (regnum)
+    int regnum;
+{
+  /* On a pyr, we know a virtual register can always fit in an long.
+     Here (and elsewhere) we take advantage of that.  Yuk.  */
+  long raw_regs[MAX_REGISTER_RAW_SIZE*NUM_REGS];
+  register int i;
+  
+  for (i = 0 ; i < 64 ; i++) {
+    read_relative_register_raw_bytes(i, raw_regs+i);
+  }
+  if (regnum == -1)
+    pyr_print_registers (raw_regs, regnum);
+  else
+    for (i = 0; i < NUM_REGS; i++)
+      if (i == regnum) {
+	long val = raw_regs[i];
+	
+	fputs_filtered (reg_names[i], stdout);
+	printf_filtered(":");
+	print_spaces_filtered (6 - strlen (reg_names[i]), stdout);
+	if (val == 0)
+	  printf_filtered ("0");
+	else
+	  printf_filtered ("0x%08x  %d", val, val);
+	printf_filtered("\n");
+      }
+}
+
+/*** Debugging editions of various macros from m-pyr.h ****/
+
+CORE_ADDR frame_locals_address (frame)
+    FRAME frame;
+{
+  register int addr = find_saved_register (frame,CFP_REGNUM);
+  register int result = read_memory_integer (addr, 4);
+#ifdef PYRAMID_CONTROL_FRAME_DEBUGGING
+  fprintf (stderr,
+	   "\t[[..frame_locals:%8x, %s= %x @%x fcfp= %x foo= %x\n\t gr13=%x pr13=%x tr13=%x @%x]]\n",
+	   frame->frame,
+	   reg_names[CFP_REGNUM],
+	   result, addr,
+	   frame->frame_cfp, (CFP_REGNUM),
+
+
+	   read_register(13), read_register(29), read_register(61),
+	   find_saved_register(frame, 61));
+#endif /* PYRAMID_CONTROL_FRAME_DEBUGGING */
+
+  /* FIXME: I thought read_register (CFP_REGNUM) should be the right answer;
+     or at least CFP_REGNUM relative to FRAME (ie, result).
+     There seems to be a bug in the way the innermost frame is set up.  */
+
+    return ((frame->next) ? result: frame->frame_cfp);
+}
+
+CORE_ADDR frame_args_addr (frame)
+    FRAME frame;
+{
+  register int addr = find_saved_register (frame,CFP_REGNUM);
+  register int result = read_memory_integer (addr, 4);
+
+#ifdef PYRAMID_CONTROL_FRAME_DEBUGGING
+  fprintf (stderr,
+	   "\t[[..frame_args:%8x, %s= %x @%x fcfp= %x r_r= %x\n\t gr13=%x pr13=%x tr13=%x @%x]]\n",
+	   frame->frame,
+	   reg_names[CFP_REGNUM],
+	   result, addr,
+	   frame->frame_cfp, read_register(CFP_REGNUM),
+
+	   read_register(13), read_register(29), read_register(61),
+	   find_saved_register(frame, 61));
+#endif /*  PYRAMID_CONTROL_FRAME_DEBUGGING */
+
+  /* FIXME: I thought read_register (CFP_REGNUM) should be the right answer;
+     or at least CFP_REGNUM relative to FRAME (ie, result).
+     There seems to be a bug in the way the innermost frame is set up.  */
+    return ((frame->next) ? result: frame->frame_cfp);
+}