source: gpfs_3.1_ker2.6.20/lpp/mmfs/src/gpl-linux/tracedev-ksyms.c @ 65

/***************************************************************************
 *
 * Copyright (C) 2001 International Business Machines
 * All rights reserved.
 *
 * This file is part of the GPFS mmfslinux kernel module.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice, 
 *     this list of conditions and the following disclaimer. 
 *  2. Redistributions in binary form must reproduce the above copyright 
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution. 
 *  3. The name of the author may not be used to endorse or promote products 
 *     derived from this software without specific prior written
 *     permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *************************************************************************** */
/* @(#)42       1.13  src/avs/fs/mmfs/ts/kernext/gpl-linux/tracedev-ksyms.c, mmfs, avs_rgpfs24, rgpfs240610b 10/28/05 11:21:21 */
/*
 * Export symbols for tracing module (tracedev)
 *
 * Define new global variables with GPFS_EXPORT_SYMBOL(varname).
 * Define new functions with GPFS_EXPORT_FUNC(varname).
 *
 * The latter will automatically spit out a generic function
 * prototype. The prototype format doesn't matter here, but
 * it is important to let the compiler know that something
 * is really a function (or else incorrect code is spewed out
 * on IA64 for the relocation entry which trips up insmod;
 * the i386 platform doesn't have this feature).
 *
 *
 */

#ifndef KTRACE

/* If trace is built into kernel, pick up GPFS flag definitions from a file
   rather than requiring them to be defined on the command line. Also, put
   trace global variables here rather than in GPFS kernel module so that
   they can be referenced by code in kernel. */
#ifndef MODULE
#define DEFINE_TRACE_GBL_VARS
/* #include <linux/ktrace.h> */
#endif

#include <linux/version.h>
#include <linux/module.h>
#define GPFS_GPL

#ifdef GPFS_EXPORT_KSYMS

/* Use GPFS_EXPORT_SYMBOL for exporting a variable */
/* Use GPFS_EXPORT_FUNC for exporting a function */

#if LINUX_KERNEL_VERSION > 2061300
#define GPFS_EXPORT_SYMBOL(VAR) EXPORT_SYMBOL(VAR);
#define GPFS_EXPORT_FUNC(FNAME) extern void FNAME (); \
                                EXPORT_SYMBOL(FNAME);
#else
#if LINUX_KERNEL_VERSION > 2050000
#define GPFS_EXPORT_SYMBOL(VAR) EXPORT_SYMBOL_NOVERS(VAR);
#else
#define GPFS_EXPORT_SYMBOL(VAR) extern VAR; EXPORT_SYMBOL_NOVERS(VAR);
#endif
#define GPFS_EXPORT_FUNC(FNAME) extern void FNAME (); \
                                EXPORT_SYMBOL_NOVERS(FNAME);
#endif

/* ************** */
/* Export section */
/* ************** */
#ifndef GPFS_PRINTF
GPFS_EXPORT_FUNC(_STrace);
GPFS_EXPORT_FUNC(_STraceNB);
GPFS_EXPORT_FUNC(_XTrace);
GPFS_EXPORT_FUNC(_XTraceNB);
#if 0
GPFS_EXPORT_SYMBOL(lxthe);
#endif
GPFS_EXPORT_FUNC(trc_fsync);
#ifndef MODULE
EXPORT_SYMBOL_NOVERS(TraceFlagsP);
#endif
#endif /* ! GPFS_PRINTF */

#endif /* GPFS_EXPORT_KSYMS */
#endif /* ! KTRACE */