210 lines
7.3 KiB
C
210 lines
7.3 KiB
C
/* **********************************************************
|
|
* Copyright 2004 - 2009 VMware, Inc. All rights reserved.
|
|
* **********************************************************/
|
|
|
|
/*
|
|
* @VMKAPIMOD_LICENSE@
|
|
*/
|
|
|
|
/*
|
|
******************************************************************************
|
|
* Assertions */ /**
|
|
*
|
|
* \addtogroup Core
|
|
* @{
|
|
*
|
|
* \defgroup Assert System Panic and Assertions
|
|
* @{
|
|
******************************************************************************
|
|
*/
|
|
|
|
#ifndef _VMKAPI_ASSERT_H_
|
|
#define _VMKAPI_ASSERT_H_
|
|
|
|
/** \cond never */
|
|
#ifndef VMK_HEADER_INCLUDED_FROM_VMKAPI_H
|
|
#error This vmkapi file should never be included directly but only via vmkapi.h
|
|
#endif
|
|
/** \endcond never */
|
|
|
|
#include <stdarg.h>
|
|
|
|
/*
|
|
******************************************************************************
|
|
* vmk_vPanic -- */ /**
|
|
*
|
|
* \brief Indicate that an unrecoverable condition was discovered
|
|
*
|
|
* A module indicates with this function that it discovered an unrecoverable
|
|
* condition. Depending on the system state the VMKernel might initiate a system
|
|
* panic or forcefully disable and unload the module. The caller is guaranteed
|
|
* that no code from the module referenced by moduleID will be executed after a
|
|
* call to this function.
|
|
*
|
|
* \printformatstringdoc
|
|
* \note This function will not return.
|
|
*
|
|
* \param[in] moduleID ModuleID of the panicking module
|
|
* \param[in] fmt Error string in printf format
|
|
* \param[in] ap Additional parameters for the error string
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
void vmk_vPanic(vmk_ModuleID moduleID,
|
|
const char *fmt,
|
|
va_list ap);
|
|
|
|
/*
|
|
******************************************************************************
|
|
* vmk_PanicWithModuleID -- */ /**
|
|
*
|
|
* \brief Indicate that an unrecoverable condition was discovered
|
|
*
|
|
* A module indicates with this function that it discovered an unrecoverable
|
|
* condition. Depending on the system state the VMKernel might initiate a system
|
|
* panic or forcefully disable and unload the module. The caller is guaranteed
|
|
* that no code from the module referenced by moduleID will be executed after a
|
|
* call to this function.
|
|
*
|
|
* \printformatstringdoc
|
|
* \note This function will not return.
|
|
*
|
|
* \param[in] moduleID ModuleID of the panicking module
|
|
* \param[in] fmt Error string in printf format
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
void
|
|
vmk_PanicWithModuleID(vmk_ModuleID moduleID,
|
|
const char *fmt,
|
|
...)
|
|
VMK_ATTRIBUTE_PRINTF(2,3);
|
|
|
|
|
|
/*
|
|
******************************************************************************
|
|
* vmk_Panic -- */ /**
|
|
*
|
|
* \brief Convenience wrapper around vmk_PanicWithModuleID for module local
|
|
* panic calls
|
|
*
|
|
* \printformatstringdoc
|
|
* \note This function will not return.
|
|
*
|
|
* \param[in] _fmt Error string in printf format
|
|
* \param[in] _args Arguments to the error string
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
#define vmk_Panic(_fmt, _args...) \
|
|
do { \
|
|
vmk_PanicWithModuleID(vmk_ModuleCurrentID, _fmt, ## _args); \
|
|
} while(0)
|
|
|
|
|
|
/*
|
|
******************************************************************************
|
|
* VMK_ASSERT_BUG -- */ /**
|
|
*
|
|
* \brief Panics the system if a runtime expression evalutes to false
|
|
* regardless of debug build status.
|
|
*
|
|
* \param[in] _cond_ Expression to check.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
#define VMK_ASSERT_BUG(_cond_) \
|
|
do { \
|
|
if (VMK_UNLIKELY(!(_cond_))) { \
|
|
vmk_Panic("Failed at %s:%d -- VMK_ASSERT(%s)", \
|
|
__FILE__, __LINE__, #_cond_); \
|
|
/* Ensure that we don't lose warnings in condition */ \
|
|
if (0) { if (_cond_) {;} } (void)0; \
|
|
} \
|
|
} while(0)
|
|
|
|
|
|
/*
|
|
******************************************************************************
|
|
* VMK_ASSERT -- */ /**
|
|
*
|
|
* \brief Panics the system if a runtime expression evalutes to false
|
|
* only in debug builds.
|
|
*
|
|
* \param[in] _cond_ Expression to check.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
#if defined(VMX86_DEBUG)
|
|
#define VMK_ASSERT(_cond_) VMK_ASSERT_BUG(_cond_)
|
|
#else
|
|
#define VMK_ASSERT(_cond_)
|
|
#endif
|
|
|
|
|
|
/*
|
|
******************************************************************************
|
|
* VMK_ASSERT_ON_COMPILE -- */ /**
|
|
*
|
|
* \ingroup Assert
|
|
* \brief Fail compilation if a condition does not hold true
|
|
*
|
|
* \note This macro must be used inside the context of a function.
|
|
*
|
|
* \param[in] _cond_ Expression to check.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
#define VMK_ASSERT_ON_COMPILE(_cond_) \
|
|
do { \
|
|
switch(0) { \
|
|
case 0: \
|
|
case (_cond_): \
|
|
; \
|
|
} \
|
|
} while(0) \
|
|
|
|
|
|
/*
|
|
******************************************************************************
|
|
* VMK_ASSERT_LIST -- */ /**
|
|
*
|
|
* \brief To put a VMK_ASSERT_ON_COMPILE() outside a function, wrap it in
|
|
* VMK_ASSERT_LIST(). The first parameter must be unique in each .c
|
|
* file where it appears
|
|
*
|
|
* \par Example usage with VMK_ASSERT_ON_COMPILE:
|
|
*
|
|
* \code
|
|
* VMK_ASSERT_LIST(fs_assertions,
|
|
* VMK_ASSERT_ON_COMPILE(sizeof(fs_diskLock) == 128);
|
|
* VMK_ASSERT_ON_COMPILE(sizeof(fs_LockRes) == DISK_BLK_SIZE);
|
|
* )
|
|
* \endcode
|
|
*
|
|
* \param[in] _name_ Unique name of the list of assertions.
|
|
* \param[in] _assertions_ Individual assert-on-compile statements.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
#define VMK_ASSERT_LIST(_name_, _assertions_) \
|
|
static inline void _name_(void) { \
|
|
_assertions_ \
|
|
}
|
|
|
|
|
|
/*
|
|
***********************************************************************
|
|
* VMK_NOT_REACHED -- */ /**
|
|
*
|
|
* \ingroup Assert
|
|
* \brief Panic if code reaches this call
|
|
*
|
|
***********************************************************************
|
|
*/
|
|
#define VMK_NOT_REACHED() \
|
|
vmk_Panic("Failed at %s:%d -- NOT REACHED", __FILE__, __LINE__)
|
|
|
|
#endif /* _VMKAPI_ASSERT_H_ */
|
|
/** @} */
|
|
/** @} */
|