1993-05-13 18:11:13 +04:00
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/* Parameters for execution on a Sony/NEWS with News-OS version 3,
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for GDB, the GNU debugger.
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Copyright (C) 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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1993-08-02 21:38:43 +04:00
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: m-newsos3.h,v 1.2 1993/08/02 17:40:01 mycroft Exp $
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*/
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1993-05-13 18:11:13 +04:00
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#define NEWSOS3
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#include "m-news.h"
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#undef STACK_END_ADDR
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/* <machine/vmparam.h> USRSTACK */
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#define STACK_END_ADDR (0x80000000 - UPAGES*NBPG)
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/* Have siginterupt on NEWS OS 3.x. */
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#undef NO_SIGINTERRUPT
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#undef USE_PCB
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/* now old ptrace bug has fixed almost. Remain constrain is;
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When some process do not touch the floating register,
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ptrace cannot change the floating register containts.
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*/
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#undef PTRACE_BUG
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#undef PUSH_DUMMY_FRAME
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#undef POP_FRAME
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/* now ptrace has a bug to write floating register in NEWS OS version 2.x */
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#define PUSH_DUMMY_FRAME \
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{ register CORE_ADDR sp = read_register (SP_REGNUM); \
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register int regnum; \
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char raw_buffer[12]; \
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sp = push_word (sp, read_register (PC_REGNUM)); \
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sp = push_word (sp, read_register (FP_REGNUM)); \
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write_register (FP_REGNUM, sp); \
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for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \
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{ read_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 12); \
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sp = push_bytes (sp, raw_buffer, 12); } \
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for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
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sp = push_word (sp, read_register (regnum)); \
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sp = push_word (sp, read_register (PS_REGNUM)); \
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write_register (SP_REGNUM, sp); }
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/* Discard from the stack the innermost frame, restoring all registers. */
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#define POP_FRAME \
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{ register FRAME frame = get_current_frame (); \
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register CORE_ADDR fp; \
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register int regnum; \
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struct frame_saved_regs fsr; \
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struct frame_info *fi; \
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char raw_buffer[12]; \
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fi = get_frame_info (frame); \
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fp = fi->frame; \
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get_frame_saved_regs (fi, &fsr); \
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for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \
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if (fsr.regs[regnum]) \
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{ read_memory (fsr.regs[regnum], raw_buffer, 12); \
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write_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 12); }\
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for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
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if (fsr.regs[regnum]) \
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write_register (regnum, read_memory_integer (fsr.regs[regnum], 4)); \
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if (fsr.regs[PS_REGNUM]) \
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write_register (PS_REGNUM, read_memory_integer (fsr.regs[PS_REGNUM], 4)); \
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write_register (FP_REGNUM, read_memory_integer (fp, 4)); \
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write_register (PC_REGNUM, read_memory_integer (fp + 4, 4)); \
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write_register (SP_REGNUM, fp + 8); \
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flush_cached_frames (); \
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set_current_frame (create_new_frame (read_register (FP_REGNUM), \
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read_pc ())); }
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/* NewsOS 3 apparently dies on large alloca's -- roland@ai.mit.edu. */
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#define BROKEN_LARGE_ALLOCA
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/* Make this macro from peep of core file. */
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#undef REGISTER_U_ADDR
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#ifdef USE_PCB
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#define REGISTER_U_ADDR(addr, blockend, regno) \
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{ blockend += 4; /* why? */ \
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if (regno <= FP_REGNUM) \
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addr = blockend + regno * 4; \
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else if (regno == SP_REGNUM) \
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addr = blockend - 4 - 4 * 4; \
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else if (regno <= PS_REGNUM) \
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addr = blockend - 4 + (regno - PS_REGNUM) * 4; \
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else if (regno < FPC_REGNUM) \
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addr = blockend + (14 + 1 + 3) * 4 + (regno - FP0_REGNUM) * 12; \
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else \
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addr = blockend + 15 * 4 + (regno - FPC_REGNUM) * 4; \
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}
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#else
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#define REGISTER_U_ADDR(addr, blockend, regno) \
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{ blockend += 4; /* why? */ \
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if (regno <= FP_REGNUM) \
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addr = blockend + regno * 4; \
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else if (regno == SP_REGNUM) \
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addr = blockend -4 - 4 * 4; \
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else if (regno <= PS_REGNUM) \
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addr = blockend - 4 + (regno - PS_REGNUM) * 4; \
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else if (regno < FPC_REGNUM) \
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addr = blockend + (14 + 1 + 3) * 4 + (regno - FP0_REGNUM) * 12; \
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else \
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addr = blockend + 15 * 4 + (regno - FPC_REGNUM) * 4; \
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}
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#endif
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