00001 /***************************************************************************************** 00002 Copyright (c) 2002-2004 The UbixOS Project 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without modification, are 00006 permitted provided that the following conditions are met: 00007 00008 Redistributions of source code must retain the above copyright notice, this list of 00009 conditions, the following disclaimer and the list of authors. Redistributions in binary 00010 form must reproduce the above copyright notice, this list of conditions, the following 00011 disclaimer and the list of authors in the documentation and/or other materials provided 00012 with the distribution. Neither the name of the UbixOS Project nor the names of its 00013 contributors may be used to endorse or promote products derived from this software 00014 without specific prior written permission. 00015 00016 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 00017 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00018 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 00019 THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00020 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 00021 OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00022 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 00023 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00024 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00025 00026 $Id: sys__call__new_8S-source.html 88 2016-01-12 00:11:29Z reddawg $ 00027 00028 *****************************************************************************************/ 00029 00030 #define FAKE_MCOUNT(caller) pushl caller ; call __mcount ; popl %ecx 00031 00032 .globl _sysCall_new 00033 .text 00034 .code32 00035 _sysCall_new: 00036 pushl $2 /* sizeof "int 0x80" */ 00037 subl $4,%esp /* skip over tf_trapno */ 00038 pushal 00039 pushl %ds 00040 pushl %es 00041 pushl %fs 00042 /* switch to kernel segments */ 00043 movl $0x10,%eax 00044 movl %eax,%ds 00045 movl %eax,%es 00046 movl %eax,%fs 00047 //FAKE_MCOUNT(TF_EIP(%esp)) 00048 call syscall 00049 //MEXITCOUNT 00050 //jmp doreti 00051 popl %fs 00052 popl %es 00053 popl %ds 00054 popal 00055 addl $8,%esp 00056 iret 00057 00058 invalidSysCall: 00059 push %eax 00060 call invalidCall 00061 pop %eax 00062 movl $-1,%eax 00063 iret 00064 00065 /*** 00066 END 00067 ***/ 00068
1.4.7