assert-r0drv-linux.c revision 72944762947bf386b5a9964b7e6aabace81f2d73
/* $Id$ */
/** @file
* IPRT - Assertion Workers, Ring-0 Drivers, Linux.
*/
/*
* Copyright (C) 2007 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include "the-linux-kernel.h"
#include <iprt/assert.h>
#include <iprt/log.h>
#include <iprt/string.h>
#include <iprt/stdarg.h>
#include <iprt/asm.h>
/*******************************************************************************
* Global Variables *
*******************************************************************************/
/** The last assert message, 1st part. */
RTDATADECL(char) g_szRTAssertMsg1[1024];
/** The last assert message, 2nd part. */
RTDATADECL(char) g_szRTAssertMsg2[2048];
/** The last assert message, file name. */
RTDATADECL(const char *) volatile g_pszRTAssertExpr;
/** The last assert message, file name. */
RTDATADECL(const char *) volatile g_pszRTAssertFile;
/** The last assert message, line number. */
RTDATADECL(uint32_t) volatile g_u32RTAssertLine;
/** The last assert message, function name. */
RTDATADECL(const char *) volatile g_pszRTAssertFunction;
RTDECL(void) AssertMsg1(const char *pszExpr, unsigned uLine, const char *pszFile, const char *pszFunction)
{
#ifdef IN_GUEST_R0
RTLogBackdoorPrintf("\n!!Assertion Failed!!\n"
"Expression: %s\n"
"Location : %s(%d) %s\n",
pszExpr, pszFile, uLine, pszFunction);
#endif
printk("\r\n!!Assertion Failed!!\r\n"
"Expression: %s\r\n"
"Location : %s(%d) %s\r\n",
pszExpr, pszFile, uLine, pszFunction);
RTStrPrintf(g_szRTAssertMsg1, sizeof(g_szRTAssertMsg1),
"\n!!Assertion Failed!!\n"
"Expression: %s\n"
"Location : %s(%d) %s\n",
pszExpr, pszFile, uLine, pszFunction);
ASMAtomicUoWritePtr((void * volatile *)&g_pszRTAssertExpr, (void *)pszExpr);
ASMAtomicUoWritePtr((void * volatile *)&g_pszRTAssertFile, (void *)pszFile);
ASMAtomicUoWritePtr((void * volatile *)&g_pszRTAssertFunction, (void *)pszFunction);
ASMAtomicUoWriteU32(&g_u32RTAssertLine, uLine);
}
RTDECL(void) AssertMsg2(const char *pszFormat, ...)
{
va_list va;
char szMsg[256];
#ifdef IN_GUEST_R0
va_start(va, pszFormat);
RTLogBackdoorPrintfV(pszFormat, va);
va_end(va);
#endif
va_start(va, pszFormat);
RTStrPrintfV(szMsg, sizeof(szMsg) - 1, pszFormat, va);
szMsg[sizeof(szMsg) - 1] = '\0';
va_end(va);
printk("%s", szMsg);
va_start(va, pszFormat);
RTStrPrintfV(g_szRTAssertMsg2, sizeof(g_szRTAssertMsg2), pszFormat, va);
va_end(va);
}
RTR0DECL(void) RTR0AssertPanicSystem(void)
{
panic("%s%s", g_szRTAssertMsg1, g_szRTAssertMsg2);
}
#if defined(RT_OS_LINUX) && defined(IN_MODULE)
/*
* When we build this in the Linux kernel module, we wish to make the
* symbols available to other modules as well.
*/
# include "the-linux-kernel.h"
EXPORT_SYMBOL (RTR0AssertPanicSystem);
EXPORT_SYMBOL (AssertMsg1);
EXPORT_SYMBOL (AssertMsg2);
#endif /* RT_OS_LINUX && IN_MODULE */