metalsvm/arch/x86/include/asm/stddef.h

/* 
 * Copyright 2010 Stefan Lankes, Chair for Operating Systems,
 *                               RWTH Aachen University
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * This file is part of MetalSVM.
 */

/**
 * @author Stefan Lankes
 * @file arch/x86/include/asm/stddef.h
 * @brief Standard datatypes
 *
 * This file contains typedefs for standard datatypes for numerical and character values.
 */

#ifndef __ARCH_STDDEF_H__
#define __ARCH_STDDEF_H__

#ifdef __cplusplus
extern "C" {
#endif

#if __SIZEOF_POINTER__ == 4
#define CONFIG_X86_32
/// A popular type for addresses
typedef unsigned long size_t;
/// Pointer differences
typedef long ptrdiff_t;
#ifdef __KERNEL__
typedef long ssize_t;
typedef long off_t;
#endif
#elif __SIZEOF_POINTER__ == 8
#define CONFIG_X86_64
// A popular type for addresses
typedef unsigned long long size_t;
/// Pointer differences
typedef long long ptrdiff_t;
#ifdef __KERNEL__
typedef long long ssize_t;
typedef long long off_t;
#endif
#else
#error unsupported architecture
#endif

/// Unsigned 64 bit integer
typedef unsigned long long uint64_t;
/// Signed 64 bit integer
typedef long long int64_t;
/// Unsigned 32 bit integer
typedef unsigned int uint32_t;
/// Signed 32 bit integer
typedef int int32_t;
/// Unsigned 16 bit integer
typedef unsigned short uint16_t;
/// Signed 16 bit integer
typedef short int16_t;
/// Unsigned 8 bit integer (/char)
typedef unsigned char uint8_t;
/// Signed 8 bit integer (/char)
typedef char int8_t;
/// 16 bit wide char type
typedef unsigned short wchar_t;

#ifndef _WINT_T
#define _WINT_T
typedef unsigned int wint_t;
#endif

/** @brief This defines what the stack looks like after an ISR was called.
 *
 * All the interrupt handler routines use this type for their only parameter.
 * Note: Our kernel doesn't use the GS and FS registers.
 */
struct state {
#ifdef CONFIG_X86_32
	// ds register
	uint32_t ds;
	// es register
	uint32_t es;
	/// EDI register
	uint32_t edi;
	/// ESI register
	uint32_t esi;
	/// EBP register
	uint32_t ebp;
	/// ESP register
	uint32_t esp;
	/// EBX register 
	uint32_t ebx;
	/// EDX register
	uint32_t edx;
	/// ECX register
	uint32_t ecx;
	/// EAX register
	uint32_t eax;		/* pushed by 'pusha' */

	/// Interrupt number
	uint32_t int_no;
	
	// pushed by the processor automatically
	uint32_t error;
	uint32_t eip;
	uint32_t cs;
	uint32_t eflags;
	uint32_t useresp;
	uint32_t ss;
#elif defined(CONFIG_X86_64)
	/// R15 register
	uint64_t r15;
	/// R14 register
	uint64_t r14;
	/// R13 register
	uint64_t r13;
	/// R12 register
	uint64_t r12;
	/// R11 register
	uint64_t r11;
	/// R10 register
	uint64_t r10;
	/// R9 register
	uint64_t r9;
	/// R8 register
	uint64_t r8;
	/// RDI register
	uint64_t rdi;
	/// RSI register
	uint64_t rsi;
	/// RBP register
	uint64_t rbp;
	/// (pseudo) RSP register
	uint64_t rsp;
	/// RBX register
	uint64_t rbx;
	/// RDX register
	uint64_t rdx;
	/// RCX register
	uint64_t rcx;
	/// RAX register
	uint64_t rax;

	/// Interrupt number
	uint64_t int_no;

	// pushed by the processor automatically
	uint64_t error;
	uint64_t rip;
	uint64_t cs;
	uint64_t rflags;
	uint64_t userrsp;
	uint64_t ss;
#endif
};

uint32_t apic_cpu_id(void);

#define smp_id  apic_cpu_id

#ifdef __cplusplus
}
#endif

#endif