Initial source

1 files changed, 101 insertions, 0 deletions

diff --git a/kern/xpr.h b/kern/xpr.h
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+/* 
+ * Mach Operating System
+ * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ * 
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ * 
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+/*
+ * Include file for xpr circular buffer silent tracing.  
+ *
+ */
+/*
+ * If the kernel flag XPRDEBUG is set, the XPR macro is enabled.  The 
+ * macro should be invoked something like the following:
+ *	XPR(XPR_SYSCALLS, ("syscall: %d, 0x%x\n", syscallno, arg1);
+ * which will expand into the following code:
+ *	if (xprflags & XPR_SYSCALLS)
+ *		xpr("syscall: %d, 0x%x\n", syscallno, arg1);
+ * Xpr will log the pointer to the printf string and up to 6 arguements,
+ * along with a timestamp and cpuinfo (for multi-processor systems), into
+ * a circular buffer.  The actual printf processing is delayed until after
+ * the buffer has been collected.  It is assumed that the text/data segments
+ * of the kernel can easily be reconstructed in a post-processor which
+ * performs the printf processing.
+ *
+ * If the XPRDEBUG compilation switch is not set, the XPR macro expands 
+ * to nothing.
+ */
+
+#ifndef	_KERN_XPR_H_
+#define _KERN_XPR_H_
+
+#ifdef	KERNEL
+#include <xpr_debug.h>
+#else	KERNEL
+#include <sys/features.h>
+#endif	KERNEL
+
+#include <machine/xpr.h>
+
+#if	XPR_DEBUG
+
+#define XPR(flags,xprargs) if(xprflags&flags) xpr xprargs
+
+extern int xprflags;
+/*
+ * flags for message types.
+ */
+#define XPR_SYSCALLS	0x00000001
+#define XPR_TRAPS	0x00000002
+#define XPR_SCHED	0x00000004
+#define XPR_NPTCP	0x00000008
+#define XPR_NP		0x00000010
+#define XPR_TCP		0x00000020
+
+#define	XPR_VM_OBJECT		(1 << 8)
+#define	XPR_VM_OBJECT_CACHE	(1 << 9)
+#define	XPR_VM_PAGE		(1 << 10)
+#define	XPR_VM_PAGEOUT		(1 << 11)
+#define	XPR_MEMORY_OBJECT	(1 << 12)
+#define	XPR_VM_FAULT		(1 << 13)
+#define	XPR_INODE_PAGER		(1 << 14)
+#define	XPR_INODE_PAGER_DATA	(1 << 15)
+
+#else	XPR_DEBUG
+#define XPR(flags,xprargs)
+#endif	XPR_DEBUG
+
+struct xprbuf {
+	char 	*msg;
+	int	arg1,arg2,arg3,arg4,arg5;
+	int	timestamp;
+	int	cpuinfo;
+};
+
+#ifndef WANT_PROTOTYPES
+extern void xpr();
+#endif
+extern void xpr_dump();
+extern void xprinit();
+extern void xprbootstrap();
+
+#endif _KERN_XPR_H_