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Annotation of XNU/osfmk/mach/i386/rpc.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * @OSF_COPYRIGHT@
        !            24:  */
        !            25: #ifndef _MACH_I386_RPC_H_
        !            26: #define _MACH_I386_RPC_H_
        !            27: 
        !            28: /*
        !            29:  * Just temporary until all vestiges of short-circuit can be
        !            30:  * removed.
        !            31:  */
        !            32: #define CAN_SHCIRCUIT(name)    (0)
        !            33: 
        !            34: /*
        !            35:  * Kernel machine dependent macros for mach rpc
        !            36:  *
        !            37:  * User args (argv) begin two words above the frame pointer (past saved ebp 
        !            38:  * and return address) on the user stack. Return code is stored in register
        !            39:  * ecx, by convention (must be a caller-saves register, to survive return
        !            40:  * from server work function). The user space instruction pointer is eip,
        !            41:  * and the user stack pointer is uesp.
        !            42:  */
        !            43: #define MACH_RPC_ARGV(act)     ( (char *)(USER_REGS(act)->ebp + 8) )
        !            44: #define MACH_RPC_RET(act)      ( USER_REGS(act)->ecx )
        !            45: #define MACH_RPC_FUNC(act)     ( USER_REGS(act)->edx )
        !            46: #define MACH_RPC_SIG(act)       ( USER_REGS(act)->edi ) 
        !            47: #define MACH_RPC_UIP(act)      ( USER_REGS(act)->eip )
        !            48: #define MACH_RPC_USP(act)      ( USER_REGS(act)->uesp )
        !            49: #define MACH_RPC_RETADDR(sp)    ( *((int *)sp - 1) )
        !            50: 
        !            51: #endif /* _MACH_I386_RPC_H_ */

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