1 /* Parameters for hosting on a Hewlett-Packard 9000/300, running bsd.
2 Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
21 * Configuration file for HP9000/300 series machine running
22 * University of Utah's 4.3bsd port. This is NOT for HP-UX.
23 * Problems to hpbsd-bugs@cs.utah.edu
26 #define HOST_BYTE_ORDER BIG_ENDIAN
28 /* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
29 the same as in the system <machine/machtypes.h> file. */
31 #define INT_MIN 0x80000000
33 /* Get rid of any system-imposed stack limit if possible. */
35 #define SET_STACK_LIMIT_HUGE
37 /* Get kernel u area address at run-time using BSD style nlist (). */
38 #define KERNEL_U_ADDR_BSD
40 /* This is a piece of magic that is given a register number REGNO
41 and as BLOCKEND the address in the system of the end of the user structure
42 and stores in ADDR the address in the kernel or core dump
45 #define REGISTER_U_ADDR(addr, blockend, regno) \
47 if (regno < PS_REGNUM) \
48 addr = (int) &((struct frame *)(blockend))->f_regs[regno]; \
49 else if (regno == PS_REGNUM) \
50 addr = (int) &((struct frame *)(blockend))->f_stackadj; \
51 else if (regno == PC_REGNUM) \
52 addr = (int) &((struct frame *)(blockend))->f_pc; \
53 else if (regno < FPC_REGNUM) \
55 &((struct user *)0)->u_pcb.pcb_fpregs.fpf_regs[((regno)-FP0_REGNUM)*3];\
56 else if (regno == FPC_REGNUM) \
57 addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpcr; \
58 else if (regno == FPS_REGNUM) \
59 addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpsr; \
61 addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpiar; \
64 /* Compensate for lack of `vprintf' function. */
65 #define MISSING_VPRINTF
68 /* Interface definitions for kernel debugger KDB. */
70 /* Map machine fault codes into signal numbers.
71 First subtract 0, divide by 4, then index in a table.
72 Faults for which the entry in this table is 0
73 are not handled by KDB; the program's own trap handler
74 gets to handle then. */
76 #define FAULT_CODE_ORIGIN 0
77 #define FAULT_CODE_UNITS 4
79 { 0, 0, 0, 0, SIGTRAP, 0, 0, 0, \
80 0, SIGTRAP, 0, 0, 0, 0, 0, SIGKILL, \
81 0, 0, 0, 0, 0, 0, 0, 0, \
84 /* Start running with a stack stretching from BEG to END.
85 BEG and END should be symbols meaningful to the assembler.
86 This is used only for kdb. */
88 #define INIT_STACK(beg, end) \
89 { asm (".globl end"); \
90 asm ("movel #end, sp"); \
91 asm ("movel #0,a6"); }
93 /* Push the frame pointer register on the stack. */
94 #define PUSH_FRAME_PTR \
95 asm ("movel a6,sp@-");
97 /* Copy the top-of-stack to the frame pointer register. */
98 #define POP_FRAME_PTR \
101 /* After KDB is entered by a fault, push all registers
102 that GDB thinks about (all NUM_REGS of them),
103 so that they appear in order of ascending GDB register number.
104 The fault code will be on the stack beyond the last register. */
106 #define PUSH_REGISTERS \
107 { asm ("clrw -(sp)"); \
108 asm ("pea sp@(10)"); \
109 asm ("movem #0xfffe,sp@-"); }
111 /* Assuming the registers (including processor status) have been
112 pushed on the stack in order of ascending GDB register number,
113 restore them and return to the address in the saved PC register. */
115 #define POP_REGISTERS \
116 { asm ("subil #8,sp@(28)"); \
117 asm ("movem sp@,#0xffff"); \
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