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c906108c SS |
1 | /* Parameters for hosting on a Hewlett-Packard 9000/300, running bsd. |
2 | Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc. | |
3 | ||
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
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. | |
c906108c | 10 | |
c5aa993b JM |
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. | |
c906108c | 15 | |
c5aa993b JM |
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., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | /* | |
22 | * Configuration file for HP9000/300 series machine running | |
23 | * University of Utah's 4.3bsd (or 4.4BSD) port. This is NOT for HP-UX. | |
24 | * Problems to hpbsd-bugs@cs.utah.edu | |
25 | */ | |
26 | ||
27 | #define HOST_BYTE_ORDER BIG_ENDIAN | |
28 | ||
c5aa993b | 29 | #include <sys/param.h> /* For INT_MIN */ |
c906108c SS |
30 | |
31 | /* Kernel is a bit tenacious about sharing text segments, disallowing bpts. */ | |
32 | #define ONE_PROCESS_WRITETEXT | |
33 | ||
34 | extern char *strdup PARAMS ((const char *)); | |
35 | \f | |
36 | /* Interface definitions for kernel debugger KDB. */ | |
37 | ||
38 | /* Map machine fault codes into signal numbers. | |
39 | First subtract 0, divide by 4, then index in a table. | |
40 | Faults for which the entry in this table is 0 | |
41 | are not handled by KDB; the program's own trap handler | |
42 | gets to handle then. */ | |
43 | ||
44 | #define FAULT_CODE_ORIGIN 0 | |
45 | #define FAULT_CODE_UNITS 4 | |
46 | #define FAULT_TABLE \ | |
47 | { 0, 0, 0, 0, SIGTRAP, 0, 0, 0, \ | |
48 | 0, SIGTRAP, 0, 0, 0, 0, 0, SIGKILL, \ | |
49 | 0, 0, 0, 0, 0, 0, 0, 0, \ | |
50 | SIGILL } | |
51 | ||
52 | /* Start running with a stack stretching from BEG to END. | |
53 | BEG and END should be symbols meaningful to the assembler. | |
54 | This is used only for kdb. */ | |
55 | ||
56 | #define INIT_STACK(beg, end) \ | |
57 | { asm (".globl end"); \ | |
58 | asm ("movel #end, sp"); \ | |
59 | asm ("movel #0,a6"); } | |
60 | ||
61 | /* Push the frame pointer register on the stack. */ | |
62 | #define PUSH_FRAME_PTR \ | |
63 | asm ("movel a6,sp@-"); | |
64 | ||
65 | /* Copy the top-of-stack to the frame pointer register. */ | |
66 | #define POP_FRAME_PTR \ | |
67 | asm ("movl sp@,a6"); | |
68 | ||
69 | /* After KDB is entered by a fault, push all registers | |
70 | that GDB thinks about (all NUM_REGS of them), | |
71 | so that they appear in order of ascending GDB register number. | |
72 | The fault code will be on the stack beyond the last register. */ | |
73 | ||
74 | #define PUSH_REGISTERS \ | |
75 | { asm ("clrw -(sp)"); \ | |
76 | asm ("pea sp@(10)"); \ | |
77 | asm ("movem #0xfffe,sp@-"); } | |
78 | ||
79 | /* Assuming the registers (including processor status) have been | |
80 | pushed on the stack in order of ascending GDB register number, | |
81 | restore them and return to the address in the saved PC register. */ | |
82 | ||
83 | #define POP_REGISTERS \ | |
84 | { asm ("subil #8,sp@(28)"); \ | |
85 | asm ("movem sp@,#0xffff"); \ | |
86 | asm ("rte"); } |