Johns release

1 files changed, 95 insertions, 0 deletions

diff --git a/gdb/xm-isi.h b/gdb/xm-isi.h
new file mode 100644
index 0000000..21c0134
--- /dev/null
+++ b/gdb/xm-isi.h
@@ -0,0 +1,95 @@
+/* Definitions to make GDB run on an ISI Optimum V (3.05) under 4.3bsd.
+   Copyright (C) 1987, 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.  */
+
+#define HOST_BYTE_ORDER BIG_ENDIAN
+
+/* This has not been tested on ISI's running BSD 4.2, but it will probably
+   work.  */
+
+/* This is the amount to subtract from u.u_ar0
+   to get the offset in the core file of the register values.  */
+
+/*#define KERNEL_U_ADDR 0x10800000*/
+#define KERNEL_U_ADDR 0
+
+/* expects blockend to be u.u_ar0 */
+extern int rloc[];  	/* Defined in isi-dep.c */
+#define REGISTER_U_ADDR(addr, blockend, regno)                  \
+{       blockend &= UPAGES*NBPG - 1;                            \
+	if (regno < 18) addr = (int)blockend + rloc[regno]*4;  	\
+        else if (regno < 26) addr = (int) &((struct user *)0)->u_68881_regs \
+            + (regno - 18) * 12;                                \
+        else if (regno < 29) addr = (int) &((struct user *)0)->u_68881_regs \
+            + 8 * 12 + (regno - 26) * 4;                        \
+}
+
+/* Compensate for lack of `vprintf' function.  */
+#define MISSING_VPRINTF
+
+/* Interface definitions for kernel debugger KDB.  */
+
+/* Map machine fault codes into signal numbers.
+   First subtract 0, divide by 4, then index in a table.
+   Faults for which the entry in this table is 0
+   are not handled by KDB; the program's own trap handler
+   gets to handle then.  */
+
+#define FAULT_CODE_ORIGIN 0
+#define FAULT_CODE_UNITS 4
+#define FAULT_TABLE    \
+{ 0, 0, 0, 0, SIGTRAP, 0, 0, 0, \
+  0, SIGTRAP, 0, 0, 0, 0, 0, SIGKILL, \
+  0, 0, 0, 0, 0, 0, 0, 0, \
+  SIGILL }
+
+/* Start running with a stack stretching from BEG to END.
+   BEG and END should be symbols meaningful to the assembler.
+   This is used only for kdb.  */
+
+#define INIT_STACK(beg, end)  \
+{ asm (".globl end");         \
+  asm ("movl $ end, sp");      \
+  asm ("clrl fp"); }
+
+/* Push the frame pointer register on the stack.  */
+#define PUSH_FRAME_PTR        \
+  asm ("movel fp, -(sp)");
+
+/* Copy the top-of-stack to the frame pointer register.  */
+#define POP_FRAME_PTR  \
+  asm ("movl (sp), fp");
+
+/* After KDB is entered by a fault, push all registers
+   that GDB thinks about (all NUM_REGS of them),
+   so that they appear in order of ascending GDB register number.
+   The fault code will be on the stack beyond the last register.  */
+
+#define PUSH_REGISTERS        \
+{ asm ("clrw -(sp)");	      \
+  asm ("pea 10(sp)");	      \
+  asm ("movem $ 0xfffe,-(sp)"); }
+
+/* Assuming the registers (including processor status) have been
+   pushed on the stack in order of ascending GDB register number,
+   restore them and return to the address in the saved PC register.  */
+
+#define POP_REGISTERS          \
+{ asm ("subil $8,28(sp)");     \
+  asm ("movem (sp),$ 0xffff"); \
+  asm ("rte"); }