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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [sim/] [arm/] [gdbhost.c] - Blame information for rev 225

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Line No. Rev Author Line
1 24 jeremybenn
/*  gdbhost.c -- ARMulator RDP to gdb comms code:  ARM6 Instruction Emulator.
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    Copyright (C) 1994 Advanced RISC Machines Ltd.
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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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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/***********************************************************/
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/* Functions that communicate info back to the debugger... */
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/***********************************************************/
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#include <stdio.h>
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#include <stdarg.h>
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#include "armdefs.h"
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#include "communicate.h"
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#include "dbg_rdi.h"
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#include "armos.h"
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#define OS_SendNothing 0x0
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#define OS_SendChar 0x1
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#define OS_SendWord 0x2
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#define OS_SendString 0x3
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/* Defined in kid.c */
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extern int wait_for_osreply (ARMword * reply);
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/* A pipe for handling SWI return values that goes straight from the */
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/* parent to the ARMulator host interface, bypassing the childs RDP */
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/* to RDI interpreter */
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int DebuggerARMul[2];
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/* The pipes between the two processes */
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int mumkid[2];
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int kidmum[2];
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void
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myprint (void *arg, const char *format, va_list ap)
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{
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#ifdef DEBUG
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  fprintf (stderr, "Host: myprint\n");
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#endif
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  vfprintf (stderr, format, ap);
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}
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/* Waits for a keypress on the debuggers' keyboard */
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void
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mypause (void *arg)
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{
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#ifdef DEBUG
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  fprintf (stderr, "Host: mypause\n");
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#endif
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}                               /* I do love exciting functions */
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void
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mywritec (void *arg, int c)
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{
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#ifdef DEBUG
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  fprintf (stderr, "Mywrite : %c\n", c);
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#endif
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  MYwrite_char (kidmum[1], RDP_OSOp);   /* OS Operation Request Message */
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  MYwrite_word (kidmum[1], SWI_WriteC); /* Print... */
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  MYwrite_char (kidmum[1], OS_SendChar);        /*  ...a single character */
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  MYwrite_char (kidmum[1], (unsigned char) c);
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  wait_for_osreply ((ARMword *) 0);
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}
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int
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myreadc (void *arg)
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{
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  char c;
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  ARMword x;
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#ifdef DEBUG
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  fprintf (stderr, "Host: myreadc\n");
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#endif
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  MYwrite_char (kidmum[1], RDP_OSOp);   /* OS Operation Request Message */
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  MYwrite_word (kidmum[1], SWI_ReadC);  /* Read... */
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  MYwrite_char (kidmum[1], OS_SendNothing);
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  c = wait_for_osreply (&x);
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  return (x);
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}
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int
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mywrite (void *arg, char const *buffer, int len)
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{
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#ifdef DEBUG
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  fprintf (stderr, "Host: mywrite\n");
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#endif
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  return 0;
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}
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char *
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mygets (void *arg, char *buffer, int len)
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{
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#ifdef DEBUG
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  fprintf (stderr, "Host: mygets\n");
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#endif
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  return buffer;
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}

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