| /* 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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; |
| } |