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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [sim/] [arm/] [gdbhost.c] - Rev 300
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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., 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; }
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