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authorSteve Chamberlain <sac@cygnus>1995-05-24 21:45:01 +0000
committerSteve Chamberlain <sac@cygnus>1995-05-24 21:45:01 +0000
commit2494eaf6fd2a4656ae9cf5a943ea8720cd86ecd4 (patch)
treed9c74c7864fab015b40b647ef6c4336bc5142fb7 /sim/arm/gdbhost.c
parent1ff71ed037f735b59963372751bf73ab8214c4f3 (diff)
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Wed May 24 14:37:31 1995 Steve Chamberlain <sac@slash.cygnus.com>
* New.
Diffstat (limited to 'sim/arm/gdbhost.c')
-rw-r--r--sim/arm/gdbhost.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/sim/arm/gdbhost.c b/sim/arm/gdbhost.c
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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;
+}