87 lines
2.9 KiB
C
87 lines
2.9 KiB
C
/*
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* Copyright (c) 2010, Stefan Lankes, RWTH Aachen University
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __STDDEF_H__
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#define __STDDEF_H__
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/**
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* @author Stefan Lankes
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* @file include/eduos/stddef.h
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* @brief Definition of basic data types
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*/
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#include <eduos/config.h>
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#include <asm/stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define MAX_FNAME 128
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#define TIMER_FREQ 100 /* in HZ */
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#define CLOCK_TICK_RATE 1193182 /* 8254 chip's internal oscillator frequency */
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#define VIDEO_MEM_ADDR 0xB8000 // the video memora address
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#define CACHE_LINE 64
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#define KERNEL_SPACE (1 << 30) /* 1 GiB */
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#define KMSG_SIZE (8*1024)
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#define INT_SYSCALL 0x80
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#define MAILBOX_SIZE 32
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#define WITH_PCI_NAMES
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#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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#define BYTE_ORDER BIG_ENDIAN
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#else
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#ifdef __GNUC__
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#define BUILTIN_EXPECT(exp, b) __builtin_expect((exp), (b))
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#else
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#define BUILTIN_EXPECT(exp, b) (exp)
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#endif
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#define NORETURN __attribute__((noreturn))
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#define STDCALL __attribute__((stdcall))
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#define NULL ((void*) 0)
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/// represents a task identifier
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typedef unsigned int tid_t;
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#define PAGE_SHIFT 12
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#define PAGE_BITS PAGE_SHIFT
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#define PAGE_SIZE (1 << PAGE_SHIFT)
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#define PAGE_MASK ~(PAGE_SIZE - 1)
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#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
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struct task;
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/// pointer to the current (running) task
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extern struct task* current_task;
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#ifdef __cplusplus
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}
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#endif
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#endif
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