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Annotation of Gnu-Mach/kern/xpr.h, revision 1.1

1.1     ! root        1: /* 
        !             2:  * Mach Operating System
        !             3:  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
        !             4:  * All Rights Reserved.
        !             5:  * 
        !             6:  * Permission to use, copy, modify and distribute this software and its
        !             7:  * documentation is hereby granted, provided that both the copyright
        !             8:  * notice and this permission notice appear in all copies of the
        !             9:  * software, derivative works or modified versions, and any portions
        !            10:  * thereof, and that both notices appear in supporting documentation.
        !            11:  * 
        !            12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            15:  * 
        !            16:  * Carnegie Mellon requests users of this software to return to
        !            17:  * 
        !            18:  *  Software Distribution Coordinator  or  [email protected]
        !            19:  *  School of Computer Science
        !            20:  *  Carnegie Mellon University
        !            21:  *  Pittsburgh PA 15213-3890
        !            22:  * 
        !            23:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            24:  * the rights to redistribute these changes.
        !            25:  */
        !            26: /*
        !            27:  * Include file for xpr circular buffer silent tracing.  
        !            28:  *
        !            29:  */
        !            30: /*
        !            31:  * If the kernel flag XPRDEBUG is set, the XPR macro is enabled.  The 
        !            32:  * macro should be invoked something like the following:
        !            33:  *     XPR(XPR_SYSCALLS, ("syscall: %d, 0x%x\n", syscallno, arg1);
        !            34:  * which will expand into the following code:
        !            35:  *     if (xprflags & XPR_SYSCALLS)
        !            36:  *             xpr("syscall: %d, 0x%x\n", syscallno, arg1);
        !            37:  * Xpr will log the pointer to the printf string and up to 6 arguements,
        !            38:  * along with a timestamp and cpuinfo (for multi-processor systems), into
        !            39:  * a circular buffer.  The actual printf processing is delayed until after
        !            40:  * the buffer has been collected.  It is assumed that the text/data segments
        !            41:  * of the kernel can easily be reconstructed in a post-processor which
        !            42:  * performs the printf processing.
        !            43:  *
        !            44:  * If the XPRDEBUG compilation switch is not set, the XPR macro expands 
        !            45:  * to nothing.
        !            46:  */
        !            47: 
        !            48: #ifndef        _KERN_XPR_H_
        !            49: #define _KERN_XPR_H_
        !            50: 
        !            51: #ifdef KERNEL
        !            52: #include <xpr_debug.h>
        !            53: #else  KERNEL
        !            54: #include <sys/features.h>
        !            55: #endif KERNEL
        !            56: 
        !            57: #include <machine/xpr.h>
        !            58: 
        !            59: #if    XPR_DEBUG
        !            60: 
        !            61: #define XPR(flags,xprargs) if(xprflags&flags) xpr xprargs
        !            62: 
        !            63: extern int xprflags;
        !            64: /*
        !            65:  * flags for message types.
        !            66:  */
        !            67: #define XPR_SYSCALLS   0x00000001
        !            68: #define XPR_TRAPS      0x00000002
        !            69: #define XPR_SCHED      0x00000004
        !            70: #define XPR_NPTCP      0x00000008
        !            71: #define XPR_NP         0x00000010
        !            72: #define XPR_TCP                0x00000020
        !            73: 
        !            74: #define        XPR_VM_OBJECT           (1 << 8)
        !            75: #define        XPR_VM_OBJECT_CACHE     (1 << 9)
        !            76: #define        XPR_VM_PAGE             (1 << 10)
        !            77: #define        XPR_VM_PAGEOUT          (1 << 11)
        !            78: #define        XPR_MEMORY_OBJECT       (1 << 12)
        !            79: #define        XPR_VM_FAULT            (1 << 13)
        !            80: #define        XPR_INODE_PAGER         (1 << 14)
        !            81: #define        XPR_INODE_PAGER_DATA    (1 << 15)
        !            82: 
        !            83: #else  XPR_DEBUG
        !            84: #define XPR(flags,xprargs)
        !            85: #endif XPR_DEBUG
        !            86: 
        !            87: struct xprbuf {
        !            88:        char    *msg;
        !            89:        int     arg1,arg2,arg3,arg4,arg5;
        !            90:        int     timestamp;
        !            91:        int     cpuinfo;
        !            92: };
        !            93: 
        !            94: #ifndef WANT_PROTOTYPES
        !            95: extern void xpr();
        !            96: #endif
        !            97: extern void xpr_dump();
        !            98: extern void xprinit();
        !            99: extern void xprbootstrap();
        !           100: 
        !           101: #endif _KERN_XPR_H_

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