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Annotation of coherent/f/usr/include.78/sys/__paddr.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * /usr/include/sys/__paddr.h
                      3:  *
                      4:  * The definition of __paddr_t.
                      5:  *
                      6:  * Revised Mon Mar 22 13:12:44 1993 CST
                      7:  */
                      8: 
                      9: #ifndef __SYS___PADDR_H__  
                     10: #define __SYS___PADDR_H__  
                     11:   
                     12: /*  
                     13:  * This internal header file is intended to be the sole point of definition  
                     14:  * for the internal data type "__paddr_t", which is used as the basis of the  
                     15:  * definition of the internal kernel data type "paddr_t".  
                     16:  *  
                     17:  * The semantics of this type are not well-defined. Any access to a data item 
                     18:  * of this type or a type derived from it is non-portable, and is not  
                     19:  * guaranteed to remain the same across releases of the operating system.  
                     20:  * Not even the size of such an item can be assumed to remain constant, so  
                     21:  * use of such an item in a structure visible to user or driver code is  
                     22:  * prohibited. [ Exception; certain header files from earlier releases of the 
                     23:  * Coherent operating system defined such structures, which remain in the  
                     24:  * current release but which are being phased out. Therefore, access to those 
                     25:  * structures is similarly non-portable by transitivity, and developers are  
                     26:  * cautioned to find portable alternatives. ]  
                     27:  */  
                     28:   
                     29: typedef long    __paddr_t;  
                     30:   
                     31: #endif  /* ! defined (__SYS___PADDR_H__) */  

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