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Diffstat (limited to 'gdb/xm-news.h')
| -rw-r--r-- | gdb/xm-news.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/gdb/xm-news.h b/gdb/xm-news.h new file mode 100644 index 0000000..1c5c6f1 --- /dev/null +++ b/gdb/xm-news.h @@ -0,0 +1,143 @@ +/* Parameters for execution on a Sony/NEWS, for GDB, the GNU debugger. + Copyright (C) 1987, 1989 Free Software Foundation, Inc. + +This file is part of GDB. + +GDB 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 1, or (at your option) +any later version. + +GDB 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 GDB; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#define HOST_BYTE_ORDER BIG_ENDIAN + +#define HAVE_WAIT_STRUCT + +/* Get rid of any system-imposed stack limit if possible. */ + +#define SET_STACK_LIMIT_HUGE + +/* We can't use "isatty" or "fileno" on this machine. This isn't good, + but it will have to do. */ +#define ISATTY(FP) ((FP) == stdin || (FP) == stdout) + +/* 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 UADDR + +/* The offsets in this macro are from /usr/include/machine/reg.h */ + +#define REGISTER_U_ADDR(addr, blockend, regno) \ +{ static char offsets[] = { \ + /*d0-d7:*/1,2,3,4,5,6,7,8, \ + /*a0-a6:*/9,10,11,12,13,14,15, /*sp:*/-4, /*ps:*/0, /*pc:*/-1, \ + /*fp0-fp7:*/19,22,25,28,31,34,37,40, /*fpc:*/16,17,18 }; \ + addr = blockend + 4 * offsets[regno]; \ +} + +/* Compensate for lack of `vprintf' function. */ +#define MISSING_VPRINTF + +/* NewsOS 3 apparently dies on large alloca's -- roland@ai.mit.edu. */ +#define BROKEN_LARGE_ALLOCA + + +/* Interface definitions for kernel debugger KDB. */ + +/* Use GNU assembler instead of standard assembler */ +#define USE_GAS + +/* Motorola assembly format */ +#ifndef USE_GAS +#define MOTOROLA +#endif + +/* 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, 0, 0, 0, SIGTRAP, 0, 0, 0, \ + 0, SIGTRAP, 0, 0, 0, 0, 0, SIGKILL, \ + 0, 0, 0, 0, 0, 0, 0, 0, \ + SIGILL } + +/* 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. */ + +#ifdef MOTOROLA +#define INIT_STACK(beg, end) \ +{ asm (".globl end"); \ + asm ("move.l $ end, sp"); \ + asm ("clr.l fp"); } +#else +#define INIT_STACK(beg, end) \ +{ asm (".globl end"); \ + asm ("movel $ end, sp"); \ + asm ("clrl fp"); } +#endif + +/* Push the frame pointer register on the stack. */ +#ifdef MOTOROLA +#define PUSH_FRAME_PTR \ + asm ("move.l fp, -(sp)"); +#else +#define PUSH_FRAME_PTR \ + asm ("movel fp, -(sp)"); +#endif + +/* Copy the top-of-stack to the frame pointer register. */ +#ifdef MOTOROLA +#define POP_FRAME_PTR \ + asm ("move.l (sp), fp"); +#else +#define POP_FRAME_PTR \ + asm ("movl (sp), fp"); +#endif + +/* 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. */ + +#ifdef MOTOROLA +#define PUSH_REGISTERS \ +{ asm ("clr.w -(sp)"); \ + asm ("pea (10,sp)"); \ + asm ("movem $ 0xfffe,-(sp)"); } +#else +#define PUSH_REGISTERS \ +{ asm ("clrw -(sp)"); \ + asm ("pea 10(sp)"); \ + asm ("movem $ 0xfffe,-(sp)"); } +#endif + +/* 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. */ + +#ifdef MOTOROLA +#define POP_REGISTERS \ +{ asm ("subi.l $8,28(sp)"); \ + asm ("movem (sp),$ 0xffff"); \ + asm ("rte"); } +#else +#define POP_REGISTERS \ +{ asm ("subil $8,28(sp)"); \ + asm ("movem (sp),$ 0xffff"); \ + asm ("rte"); } +#endif |