eduOS/include/eduos/stddef.h
2016-01-10 21:50:24 +01:00

87 lines
2.9 KiB
C

/*
* Copyright (c) 2010, Stefan Lankes, RWTH Aachen University
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 REGENTS 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.
*/
#ifndef __STDDEF_H__
#define __STDDEF_H__
/**
* @author Stefan Lankes
* @file include/eduos/stddef.h
* @brief Definition of basic data types
*/
#include <eduos/config.h>
#include <asm/stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
#define MAX_FNAME 128
#define TIMER_FREQ 100 /* in HZ */
#define CLOCK_TICK_RATE 1193182 /* 8254 chip's internal oscillator frequency */
#define VIDEO_MEM_ADDR 0xB8000 // the video memora address
#define CACHE_LINE 64
#define KERNEL_SPACE (1 << 30) /* 1 GiB */
#define KMSG_SIZE (8*1024)
#define INT_SYSCALL 0x80
#define MAILBOX_SIZE 32
#define WITH_PCI_NAMES
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define BYTE_ORDER BIG_ENDIAN
#else
#define BYTE_ORDER LITTLE_ENDIAN
#endif
#ifdef __GNUC__
#define BUILTIN_EXPECT(exp, b) __builtin_expect((exp), (b))
#else
#define BUILTIN_EXPECT(exp, b) (exp)
#endif
#define NORETURN __attribute__((noreturn))
#define STDCALL __attribute__((stdcall))
#define NULL ((void*) 0)
/// represents a task identifier
typedef unsigned int tid_t;
#define PAGE_SHIFT 12
#define PAGE_BITS PAGE_SHIFT
#define PAGE_SIZE (1 << PAGE_SHIFT)
#define PAGE_MASK ~(PAGE_SIZE - 1)
#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
struct task;
/// pointer to the current (running) task
extern struct task* current_task;
#ifdef __cplusplus
}
#endif
#endif