/********************************************************************* * * Copyright (C) 2002, 2003, Karlsruhe University * * File path: ia32-syscall-stubs.S * Description: Syscall gate jump table * * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. * * $Id: ia32-syscall-stubs.S,v 1.6 2004/03/11 16:46:07 joshua Exp $ * ********************************************************************/ #define DEFINE_SYSCALL(syscall) \ ;\ .section .data.syscalls, "wax", "progbits" ;\ .global __L4_##syscall ;\ __L4_##syscall: ;\ jmp __L4_fixup_##syscall ;\ .previous ;\ ;\ .section .data.syscalls_copy, "wax", "progbits" ;\ jmp __L4_fixup_##syscall ;\ .previous ;\ ;\ __L4_fixup_##syscall: ;\ pusha ;\ call __L4_init_syscalls ;\ popa ;\ jmp __L4_##syscall .section .data.syscalls, "wax", "progbits" .p2align 12 .global __L4_syscalls_start __L4_syscalls_start: .previous .section .data.syscalls_copy, "wax", "progbits" .global __L4_syscalls_copy_start __L4_syscalls_copy_start: .previous DEFINE_SYSCALL (Ipc) DEFINE_SYSCALL (Lipc) DEFINE_SYSCALL (ExchangeRegisters) DEFINE_SYSCALL (ThreadControl) DEFINE_SYSCALL (SystemClock) DEFINE_SYSCALL (ThreadSwitch) DEFINE_SYSCALL (Schedule) DEFINE_SYSCALL (Unmap) DEFINE_SYSCALL (SpaceControl) DEFINE_SYSCALL (ProcessorControl) DEFINE_SYSCALL (MemoryControl) .section .data.syscalls, "wax", "progbits" .global __L4_syscalls_end __L4_syscalls_end: .p2align 12 .previous .section .data.syscalls_copy, "wax", "progbits" .global __L4_syscalls_copy_end __L4_syscalls_copy_end: .previous