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62853f8052
the program might be running in another process, but only for systems with this brain death (#ifdef ONE_PROCESS_WRITETEXT). * xm-hp300bsd.h, xm-mips.h, xm-vax.h: Define it.
121 lines
4.2 KiB
C
121 lines
4.2 KiB
C
/* Parameters for hosting on a Hewlett-Packard 9000/300, running bsd.
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Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/*
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* Configuration file for HP9000/300 series machine running
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* University of Utah's 4.3bsd port. This is NOT for HP-UX.
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* Problems to hpbsd-bugs@cs.utah.edu
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*/
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#define HOST_BYTE_ORDER BIG_ENDIAN
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/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
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the same as in the system <machine/machtypes.h> file. */
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#undef INT_MIN
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#define INT_MIN 0x80000000
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/* Get rid of any system-imposed stack limit if possible. */
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#define SET_STACK_LIMIT_HUGE
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/* Get kernel u area address at run-time using BSD style nlist (). */
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#define KERNEL_U_ADDR_BSD
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/* This is a piece of magic that is given a register number REGNO
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and as BLOCKEND the address in the system of the end of the user structure
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and stores in ADDR the address in the kernel or core dump
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of that register. */
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#define REGISTER_U_ADDR(addr, blockend, regno) \
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{ \
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if (regno < PS_REGNUM) \
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addr = (int) &((struct frame *)(blockend))->f_regs[regno]; \
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else if (regno == PS_REGNUM) \
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addr = (int) &((struct frame *)(blockend))->f_stackadj; \
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else if (regno == PC_REGNUM) \
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addr = (int) &((struct frame *)(blockend))->f_pc; \
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else if (regno < FPC_REGNUM) \
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addr = (int) \
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&((struct user *)0)->u_pcb.pcb_fpregs.fpf_regs[((regno)-FP0_REGNUM)*3];\
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else if (regno == FPC_REGNUM) \
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addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpcr; \
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else if (regno == FPS_REGNUM) \
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addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpsr; \
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else \
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addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpiar; \
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}
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/* Compensate for lack of `vprintf' function. */
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#define MISSING_VPRINTF
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/* Kernel is a bit tenacious about sharing text segments, disallowing bpts. */
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#define ONE_PROCESS_WRITETEXT
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/* Interface definitions for kernel debugger KDB. */
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/* Map machine fault codes into signal numbers.
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First subtract 0, divide by 4, then index in a table.
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Faults for which the entry in this table is 0
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are not handled by KDB; the program's own trap handler
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gets to handle then. */
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#define FAULT_CODE_ORIGIN 0
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#define FAULT_CODE_UNITS 4
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#define FAULT_TABLE \
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{ 0, 0, 0, 0, SIGTRAP, 0, 0, 0, \
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0, SIGTRAP, 0, 0, 0, 0, 0, SIGKILL, \
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0, 0, 0, 0, 0, 0, 0, 0, \
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SIGILL }
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/* Start running with a stack stretching from BEG to END.
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BEG and END should be symbols meaningful to the assembler.
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This is used only for kdb. */
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#define INIT_STACK(beg, end) \
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{ asm (".globl end"); \
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asm ("movel #end, sp"); \
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asm ("movel #0,a6"); }
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/* Push the frame pointer register on the stack. */
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#define PUSH_FRAME_PTR \
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asm ("movel a6,sp@-");
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/* Copy the top-of-stack to the frame pointer register. */
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#define POP_FRAME_PTR \
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asm ("movl sp@,a6");
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/* After KDB is entered by a fault, push all registers
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that GDB thinks about (all NUM_REGS of them),
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so that they appear in order of ascending GDB register number.
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The fault code will be on the stack beyond the last register. */
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#define PUSH_REGISTERS \
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{ asm ("clrw -(sp)"); \
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asm ("pea sp@(10)"); \
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asm ("movem #0xfffe,sp@-"); }
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/* Assuming the registers (including processor status) have been
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pushed on the stack in order of ascending GDB register number,
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restore them and return to the address in the saved PC register. */
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#define POP_REGISTERS \
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{ asm ("subil #8,sp@(28)"); \
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asm ("movem sp@,#0xffff"); \
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asm ("rte"); }
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