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Diffstat (limited to 'gdb/config/tahoe/xm-tahoe.h')
| -rw-r--r-- | gdb/config/tahoe/xm-tahoe.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/gdb/config/tahoe/xm-tahoe.h b/gdb/config/tahoe/xm-tahoe.h new file mode 100644 index 0000000..99af344 --- /dev/null +++ b/gdb/config/tahoe/xm-tahoe.h @@ -0,0 +1,136 @@ +/* Definitions to make GDB hosted on a tahoe running 4.3-Reno + Copyright 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc. + Contributed by the State University of New York at Buffalo, by the + Distributed Computer Systems Lab, Department of Computer Science, 1991. + +This file is part of GDB. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* Make sure the system include files define BIG_ENDIAN, UINT_MAX, const, + etc, rather than GDB's files. */ +#include <stdio.h> +#include <sys/param.h> + +/* Host is big-endian */ + +#define HOST_BYTE_ORDER BIG_ENDIAN + +/* This is the amount to subtract from u.u_ar0 + to get the offset in the core file of the register values. */ + +#define KERNEL_U_ADDR (0xc0000000 - (TARGET_UPAGES * TARGET_NBPG)) + +#define REGISTER_U_ADDR(addr, blockend, regno) \ +{ addr = blockend - 100 + regno * 4; \ + if (regno == PC_REGNUM) addr = blockend - 8; \ + if (regno == PS_REGNUM) addr = blockend - 4; \ + if (regno == FP_REGNUM) addr = blockend - 40; \ + if (regno == SP_REGNUM) addr = blockend - 36; \ + if (regno == AL_REGNUM) addr = blockend - 20; \ + if (regno == AH_REGNUM) addr = blockend - 24;} + +/* Interface definitions for kernel debugger KDB. */ + +/* Map machine fault codes into signal numbers. + First subtract 0, divide by 4, then index in a table. + Faults for which the entry in this table is 0 + are not handled by KDB; the program's own trap handler + gets to handle then. */ + +#define FAULT_CODE_ORIGIN 0 +#define FAULT_CODE_UNITS 4 +#define FAULT_TABLE \ +{ 0, SIGKILL, SIGSEGV, 0, 0, 0, 0, 0, \ + 0, 0, SIGTRAP, SIGTRAP, 0, 0, 0, 0, \ + 0, 0, 0, 0, 0, 0, 0, 0} + +/* Start running with a stack stretching from BEG to END. + BEG and END should be symbols meaningful to the assembler. + This is used only for kdb. */ + +#define INIT_STACK(beg, end) \ +{ asm (".globl end"); \ + asm ("movl $ end, sp"); \ + asm ("clrl fp"); } + +/* Push the frame pointer register on the stack. */ + +#define PUSH_FRAME_PTR \ + asm ("pushl fp"); + +/* Copy the top-of-stack to the frame pointer register. */ + +#define POP_FRAME_PTR \ + asm ("movl (sp), fp"); + +/* After KDB is entered by a fault, push all registers + that GDB thinks about (all NUM_REGS of them), + so that they appear in order of ascending GDB register number. + The fault code will be on the stack beyond the last register. */ + +#define PUSH_REGISTERS \ +{ asm ("pushl 8(sp)"); \ + asm ("pushl 8(sp)"); \ + asm ("pushal 0x41(sp)"); \ + asm ("pushl r0" ); \ + asm ("pushl r1" ); \ + asm ("pushl r2" ); \ + asm ("pushl r3" ); \ + asm ("pushl r4" ); \ + asm ("pushl r5" ); \ + asm ("pushl r6" ); \ + asm ("pushl r7" ); \ + asm ("pushl r8" ); \ + asm ("pushl r9" ); \ + asm ("pushl r10" ); \ + asm ("pushl r11" ); \ + asm ("pushl r12" ); \ + asm ("pushl fp" ); \ + asm ("pushl sp" ); \ + asm ("pushl pc" ); \ + asm ("pushl ps" ); \ + asm ("pushl aclo" ); \ + asm ("pushl achi" ); \ +} + +/* Assuming the registers (including processor status) have been + pushed on the stack in order of ascending GDB register number, + restore them and return to the address in the saved PC register. */ + +#define POP_REGISTERS \ +{ \ + asm ("movl (sp)+, achi"); \ + asm ("movl (sp)+, aclo"); \ + asm ("movl (sp)+, ps"); \ + asm ("movl (sp)+, pc"); \ + asm ("movl (sp)+, sp"); \ + asm ("movl (sp)+, fp"); \ + asm ("movl (sp)+, r12"); \ + asm ("movl (sp)+, r11"); \ + asm ("movl (sp)+, r10"); \ + asm ("movl (sp)+, r9"); \ + asm ("movl (sp)+, r8"); \ + asm ("movl (sp)+, r7"); \ + asm ("movl (sp)+, r6"); \ + asm ("movl (sp)+, r5"); \ + asm ("movl (sp)+, r4"); \ + asm ("movl (sp)+, r3"); \ + asm ("movl (sp)+, r2"); \ + asm ("movl (sp)+, r1"); \ + asm ("movl (sp)+, r0"); \ + asm ("subl2 $8,(sp)"); \ + asm ("movl (sp),sp"); \ + asm ("rei"); } |