projects / binutils.git / blame
| Commit | Line | Data |
|---|---|---|
| 9fa28378 JG |
1 | /* Parameters for hosting on a Hewlett-Packard 9000/300, running bsd. |
| 2 | Copyright (C) 1986, 1987, 1989, 1991 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. */ | |
| dd3b648e RP |
19 | |
| 20 | /* | |
| 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 [email protected] | |
| 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 | ||
| 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 | |
| 43 | of that register. */ | |
| 44 | ||
| 45 | #define REGISTER_U_ADDR(addr, blockend, regno) \ | |
| 46 | { \ | |
| 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) \ | |
| 54 | addr = (int) \ | |
| 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; \ | |
| 60 | else \ | |
| 61 | addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpiar; \ | |
| 62 | } | |
| 63 | ||
| 64 | /* Compensate for lack of `vprintf' function. */ | |
| 65 | #define MISSING_VPRINTF | |
| 66 | ||
| 62853f80 JG |
67 | /* Kernel is a bit tenacious about sharing text segments, disallowing bpts. */ |
| 68 | #define ONE_PROCESS_WRITETEXT | |
| dd3b648e RP |
69 | \f |
| 70 | /* Interface definitions for kernel debugger KDB. */ | |
| 71 | ||
| 72 | /* Map machine fault codes into signal numbers. | |
| 73 | First subtract 0, divide by 4, then index in a table. | |
| 74 | Faults for which the entry in this table is 0 | |
| 75 | are not handled by KDB; the program's own trap handler | |
| 76 | gets to handle then. */ | |
| 77 | ||
| 78 | #define FAULT_CODE_ORIGIN 0 | |
| 79 | #define FAULT_CODE_UNITS 4 | |
| 80 | #define FAULT_TABLE \ | |
| 81 | { 0, 0, 0, 0, SIGTRAP, 0, 0, 0, \ | |
| 82 | 0, SIGTRAP, 0, 0, 0, 0, 0, SIGKILL, \ | |
| 83 | 0, 0, 0, 0, 0, 0, 0, 0, \ | |
| 84 | SIGILL } | |
| 85 | ||
| 86 | /* Start running with a stack stretching from BEG to END. | |
| 87 | BEG and END should be symbols meaningful to the assembler. | |
| 88 | This is used only for kdb. */ | |
| 89 | ||
| 90 | #define INIT_STACK(beg, end) \ | |
| 91 | { asm (".globl end"); \ | |
| 92 | asm ("movel #end, sp"); \ | |
| 93 | asm ("movel #0,a6"); } | |
| 94 | ||
| 95 | /* Push the frame pointer register on the stack. */ | |
| 96 | #define PUSH_FRAME_PTR \ | |
| 97 | asm ("movel a6,sp@-"); | |
| 98 | ||
| 99 | /* Copy the top-of-stack to the frame pointer register. */ | |
| 100 | #define POP_FRAME_PTR \ | |
| 101 | asm ("movl sp@,a6"); | |
| 102 | ||
| 103 | /* After KDB is entered by a fault, push all registers | |
| 104 | that GDB thinks about (all NUM_REGS of them), | |
| 105 | so that they appear in order of ascending GDB register number. | |
| 106 | The fault code will be on the stack beyond the last register. */ | |
| 107 | ||
| 108 | #define PUSH_REGISTERS \ | |
| 109 | { asm ("clrw -(sp)"); \ | |
| 110 | asm ("pea sp@(10)"); \ | |
| 111 | asm ("movem #0xfffe,sp@-"); } | |
| 112 | ||
| 113 | /* Assuming the registers (including processor status) have been | |
| 114 | pushed on the stack in order of ascending GDB register number, | |
| 115 | restore them and return to the address in the saved PC register. */ | |
| 116 | ||
| 117 | #define POP_REGISTERS \ | |
| 118 | { asm ("subil #8,sp@(28)"); \ | |
| 119 | asm ("movem sp@,#0xffff"); \ | |
| 120 | asm ("rte"); } |