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/* gdbhost.c -- ARMulator RDP to gdb comms code: ARM6 Instruction Emulator.
Copyright (C) 1994 Advanced RISC Machines Ltd.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
/***********************************************************/
/* Functions that communicate info back to the debugger... */
/***********************************************************/
#include <stdio.h>
#include <stdarg.h>
#include "armdefs.h"
#include "communicate.h"
#include "dbg_rdi.h"
#include "armos.h"
#define OS_SendNothing 0x0
#define OS_SendChar 0x1
#define OS_SendWord 0x2
#define OS_SendString 0x3
/* Defined in kid.c */
extern int wait_for_osreply(ARMword *reply);
/* A pipe for handling SWI return values that goes straight from the */
/* parent to the ARMulator host interface, bypassing the childs RDP */
/* to RDI interpreter */
int DebuggerARMul[2];
/* The pipes between the two processes */
int mumkid[2];
int kidmum[2];
void myprint (void *arg, const char *format, va_list ap)
{
#ifdef DEBUG
fprintf (stderr, "Host: myprint\n");
#endif
vfprintf (stderr, format, ap);
}
/* Waits for a keypress on the debuggers' keyboard */
void mypause (void *arg)
{
#ifdef DEBUG
fprintf (stderr, "Host: mypause\n");
#endif
} /* I do love exciting functions */
void mywritec(void *arg, int c)
{
#ifdef DEBUG
fprintf(stderr, "Mywrite : %c\n", c);
#endif
MYwrite_char(kidmum[1], RDP_OSOp); /* OS Operation Request Message */
MYwrite_word(kidmum[1], SWI_WriteC); /* Print... */
MYwrite_char(kidmum[1], OS_SendChar); /* ...a single character */
MYwrite_char(kidmum[1], (unsigned char) c);
wait_for_osreply((ARMword *) 0);
}
int myreadc(void *arg)
{
char c;
ARMword x;
#ifdef DEBUG
fprintf(stderr, "Host: myreadc\n");
#endif
MYwrite_char(kidmum[1], RDP_OSOp); /* OS Operation Request Message */
MYwrite_word(kidmum[1], SWI_ReadC); /* Read... */
MYwrite_char(kidmum[1], OS_SendNothing);
c = wait_for_osreply(&x);
return (x);
}
int mywrite(void *arg, char const *buffer, int len)
{
#ifdef DEBUG
fprintf(stderr, "Host: mywrite\n");
#endif
return 0;
}
char *mygets(void *arg, char *buffer, int len)
{
#ifdef DEBUG
fprintf(stderr, "Host: mygets\n");
#endif
return buffer;
}
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