xref: /openbmc/qemu/tests/multiboot/libc.h (revision 0c28d0d07fbcd7aa44d231241d444d00882256e2)

/*
 * Copyright (c) 2013 Kevin Wolf <kwolf@redhat.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#ifndef LIBC_H
#define LIBC_H

/* Integer types */

typedef unsigned long long uint64_t;
typedef unsigned int uint32_t;
typedef unsigned short uint16_t;
typedef unsigned char uint8_t;

typedef signed long long int64_t;
typedef signed int int32_t;
typedef signed short int16_t;
typedef signed char int8_t;

typedef uint32_t uintptr_t;


/* stdarg.h */

typedef __builtin_va_list       va_list;
#define va_start(ap, X)         __builtin_va_start(ap, X)
#define va_arg(ap, type)        __builtin_va_arg(ap, type)
#define va_end(ap)              __builtin_va_end(ap)


/* Port I/O functions */

static inline void outb(uint16_t port, uint8_t data)
{
    asm volatile ("outb %0, %1" : : "a" (data), "Nd" (port));
}


/* Misc functions */

void printf(const char *fmt, ...);
void* memcpy(void *dest, const void *src, int n);

#endif