1/* 2 * Copyright (c) 2013 Kevin Wolf <kwolf@redhat.com> 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a copy 5 * of this software and associated documentation files (the "Software"), to deal 6 * in the Software without restriction, including without limitation the rights 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 * copies of the Software, and to permit persons to whom the Software is 9 * furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 20 * THE SOFTWARE. 21 */ 22 23#ifndef LIBC_H 24#define LIBC_H 25 26/* Integer types */ 27 28typedef unsigned long long uint64_t; 29typedef unsigned int uint32_t; 30typedef unsigned short uint16_t; 31typedef unsigned char uint8_t; 32 33typedef signed long long int64_t; 34typedef signed int int32_t; 35typedef signed short int16_t; 36typedef signed char int8_t; 37 38typedef uint32_t uintptr_t; 39 40 41/* stdarg.h */ 42 43typedef __builtin_va_list va_list; 44#define va_start(ap, X) __builtin_va_start(ap, X) 45#define va_arg(ap, type) __builtin_va_arg(ap, type) 46#define va_end(ap) __builtin_va_end(ap) 47 48 49/* Port I/O functions */ 50 51static inline void outb(uint16_t port, uint8_t data) 52{ 53 asm volatile ("outb %0, %1" : : "a" (data), "Nd" (port)); 54} 55 56 57/* Misc functions */ 58 59void printf(const char *fmt, ...); 60void* memcpy(void *dest, const void *src, int n); 61 62#endif 63