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9fa28378 | 1 | /* Parameters for hosting on a Hewlett-Packard 9000/300, running bsd. |
be220da1 | 2 | Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc. |
dd3b648e RP |
3 | |
4 | This file is part of GDB. | |
5 | ||
99a7de40 | 6 | This program is free software; you can redistribute it and/or modify |
dd3b648e | 7 | it under the terms of the GNU General Public License as published by |
99a7de40 JG |
8 | the Free Software Foundation; either version 2 of the License, or |
9 | (at your option) any later version. | |
dd3b648e | 10 | |
99a7de40 | 11 | This program is distributed in the hope that it will be useful, |
dd3b648e RP |
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. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
99a7de40 JG |
17 | along with this program; if not, write to the Free Software |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
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19 | |
20 | /* | |
21 | * Configuration file for HP9000/300 series machine running | |
be220da1 | 22 | * University of Utah's 4.3bsd (or 4.4BSD) port. This is NOT for HP-UX. |
dd3b648e RP |
23 | * Problems to hpbsd-bugs@cs.utah.edu |
24 | */ | |
25 | ||
9fa28378 JG |
26 | #define HOST_BYTE_ORDER BIG_ENDIAN |
27 | ||
28 | /* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly | |
29 | the same as in the system <machine/machtypes.h> file. */ | |
30 | #undef INT_MIN | |
31 | #define INT_MIN 0x80000000 | |
dd3b648e RP |
32 | |
33 | /* Get rid of any system-imposed stack limit if possible. */ | |
34 | ||
35 | #define SET_STACK_LIMIT_HUGE | |
36 | ||
37 | /* Get kernel u area address at run-time using BSD style nlist (). */ | |
38 | #define KERNEL_U_ADDR_BSD | |
39 | ||
62853f80 JG |
40 | /* Kernel is a bit tenacious about sharing text segments, disallowing bpts. */ |
41 | #define ONE_PROCESS_WRITETEXT | |
be220da1 JG |
42 | |
43 | /* psignal's definition in 4.4BSD conflicts with the one in defs.h. | |
44 | But there *is* no psignal definition in 4.3BSD. So we avoid the defs.h | |
45 | version here, and supply our own (matching) one. */ | |
46 | #define PSIGNAL_IN_SIGNAL_H | |
47 | void psignal PARAMS ((unsigned int, const char *)); | |
48 | ||
49 | extern char *strdup PARAMS ((const char *)); | |
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50 | \f |
51 | /* Interface definitions for kernel debugger KDB. */ | |
52 | ||
53 | /* Map machine fault codes into signal numbers. | |
54 | First subtract 0, divide by 4, then index in a table. | |
55 | Faults for which the entry in this table is 0 | |
56 | are not handled by KDB; the program's own trap handler | |
57 | gets to handle then. */ | |
58 | ||
59 | #define FAULT_CODE_ORIGIN 0 | |
60 | #define FAULT_CODE_UNITS 4 | |
61 | #define FAULT_TABLE \ | |
62 | { 0, 0, 0, 0, SIGTRAP, 0, 0, 0, \ | |
63 | 0, SIGTRAP, 0, 0, 0, 0, 0, SIGKILL, \ | |
64 | 0, 0, 0, 0, 0, 0, 0, 0, \ | |
65 | SIGILL } | |
66 | ||
67 | /* Start running with a stack stretching from BEG to END. | |
68 | BEG and END should be symbols meaningful to the assembler. | |
69 | This is used only for kdb. */ | |
70 | ||
71 | #define INIT_STACK(beg, end) \ | |
72 | { asm (".globl end"); \ | |
73 | asm ("movel #end, sp"); \ | |
74 | asm ("movel #0,a6"); } | |
75 | ||
76 | /* Push the frame pointer register on the stack. */ | |
77 | #define PUSH_FRAME_PTR \ | |
78 | asm ("movel a6,sp@-"); | |
79 | ||
80 | /* Copy the top-of-stack to the frame pointer register. */ | |
81 | #define POP_FRAME_PTR \ | |
82 | asm ("movl sp@,a6"); | |
83 | ||
84 | /* After KDB is entered by a fault, push all registers | |
85 | that GDB thinks about (all NUM_REGS of them), | |
86 | so that they appear in order of ascending GDB register number. | |
87 | The fault code will be on the stack beyond the last register. */ | |
88 | ||
89 | #define PUSH_REGISTERS \ | |
90 | { asm ("clrw -(sp)"); \ | |
91 | asm ("pea sp@(10)"); \ | |
92 | asm ("movem #0xfffe,sp@-"); } | |
93 | ||
94 | /* Assuming the registers (including processor status) have been | |
95 | pushed on the stack in order of ascending GDB register number, | |
96 | restore them and return to the address in the saved PC register. */ | |
97 | ||
98 | #define POP_REGISTERS \ | |
99 | { asm ("subil #8,sp@(28)"); \ | |
100 | asm ("movem sp@,#0xffff"); \ | |
101 | asm ("rte"); } |