153 lines
4.5 KiB
C
153 lines
4.5 KiB
C
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/* Definitions to make GDB run on a Sequent Symmetry under dynix 3.0,
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with Weitek 1167 and i387 support.
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Copyright (C) 1986, 1987, 1989 Free Software Foundation, Inc.
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This file is part of GDB.
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GDB 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 1, or (at your option)
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any later version.
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GDB 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 GDB; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Symmetry version by Jay Vosburgh (uunet!sequent!fubar) */
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/* This machine doesn't have the siginterrupt call. */
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#define NO_SIGINTERRUPT
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#define HAVE_WAIT_STRUCT
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/* XPT_DEBUG doesn't work yet under Dynix 3.0.12, but UNDEBUG does... */
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/* #define PTRACE_ATTACH XPT_DEBUG
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#define PTRACE_DETACH XPT_UNDEBUG
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#define ATTACH_DETACH */
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#define HOST_BYTE_ORDER LITTLE_ENDIAN
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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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/* This is the amount to subtract from u.u_ar0
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to get the offset in the core file of the register values. */
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#define KERNEL_U_ADDR (0x80000000 - (UPAGES * NBPG))
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/* Compensate for lack of `vprintf' function. */
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#define MISSING_VPRINTF
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/* Override copies of {fetch,store}_inferior_registers in infptrace.c. */
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#define FETCH_INFERIOR_REGISTERS
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/* We must fetch all the regs before storing, since we store all at once. */
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#define CHILD_PREPARE_TO_STORE() read_register_bytes (0, NULL, REGISTER_BYTES)
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/* Interface definitions for kernel debugger KDB. */
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/* This doesn't work... */
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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, SIGKILL, SIGSEGV, 0, 0, 0, 0, 0, \
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0, 0, SIGTRAP, SIGTRAP, 0, 0, 0, 0, \
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0, 0, 0, 0, 0, 0, 0, 0}
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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 ("movl $ end, %esp"); \
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asm ("movl %ebp, $0"); }
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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 ("pushl %ebp");
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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 (%esp), %ebp");
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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("pushad"); }
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/*
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{ asm("pushl %eax"); \
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asm("pushl %edx"); \
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asm("pushl %ecx"); \
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asm("pushl %st(0)"); \
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asm("pushl %st(1)"); \
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asm("pushl %ebx"); \
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asm("pushl %esi"); \
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asm("pushl %edi"); \
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asm("pushl %st(2)"); \
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asm("pushl %st(3)"); \
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asm("pushl %st(4)"); \
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asm("pushl %st(5)"); \
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asm("pushl %st(6)"); \
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asm("pushl %st(7)"); \
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asm("pushl %esp"); \
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asm("pushl %ebp"); \
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asm("pushl %eip"); \
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asm("pushl %eflags"); \
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asm("pushl %fp1"); \
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asm("pushl %fp2"); \
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asm("pushl %fp3"); \
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asm("pushl %fp4"); \
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asm("pushl %fp5"); \
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asm("pushl %fp6"); \
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asm("pushl %fp7"); \
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asm("pushl %fp8"); \
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asm("pushl %fp9"); \
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asm("pushl %fp10"); \
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asm("pushl %fp11"); \
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asm("pushl %fp12"); \
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asm("pushl %fp13"); \
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asm("pushl %fp14"); \
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asm("pushl %fp15"); \
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asm("pushl %fp16"); \
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asm("pushl %fp17"); \
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asm("pushl %fp18"); \
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asm("pushl %fp19"); \
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asm("pushl %fp20"); \
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asm("pushl %fp21"); \
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asm("pushl %fp22"); \
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asm("pushl %fp23"); \
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asm("pushl %fp24"); \
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asm("pushl %fp25"); \
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asm("pushl %fp26"); \
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asm("pushl %fp27"); \
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asm("pushl %fp28"); \
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asm("pushl %fp29"); \
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asm("pushl %fp30"); \
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asm("pushl %fp31"); \
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}
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*/
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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 ("popad"); }
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