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Test kernel bootstrap

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This commit is contained in:
Alex
2023-04-29 06:52:22 +03:00
parent 069386b0f2
commit ea1b0bb72a
39 changed files with 7725 additions and 1 deletions
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130
FennixLoader/include/binfo.h Normal file
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#ifndef __FENNIX_KERNEL_BOOT_INFO_H__
#define __FENNIX_KERNEL_BOOT_INFO_H__
enum MemoryType
{
Unknown_Memory_Type,
Usable,
Reserved,
ACPIReclaimable,
ACPINVS,
BadMemory,
BootloaderReclaimable,
KernelAndModules,
Framebuffer,
Unknown
};
enum FramebufferType
{
Unknown_Framebuffer_Type,
Indexed,
RGB,
EGA
};
#define MAX_FRAMEBUFFERS 16
#define MAX_MEMORY_ENTRIES 256
#define MAX_MODULES 16
struct BootInfo
{
struct FramebufferInfo
{
enum FramebufferType Type;
void *BaseAddress;
__UINT32_TYPE__ Width;
__UINT32_TYPE__ Height;
__UINT64_TYPE__ Pitch;
__UINT16_TYPE__ BitsPerPixel;
__UINT8_TYPE__ RedMaskSize;
__UINT8_TYPE__ RedMaskShift;
__UINT8_TYPE__ GreenMaskSize;
__UINT8_TYPE__ GreenMaskShift;
__UINT8_TYPE__ BlueMaskSize;
__UINT8_TYPE__ BlueMaskShift;
void *ExtendedDisplayIdentificationData;
__UINT64_TYPE__ EDIDSize;
} Framebuffer[MAX_FRAMEBUFFERS];
struct MemoryInfo
{
struct MemoryEntryInfo
{
void *BaseAddress;
__UINT64_TYPE__ Length;
enum MemoryType Type;
} Entry[MAX_MEMORY_ENTRIES];
__UINT64_TYPE__ Entries;
__UINT64_TYPE__ Size;
} Memory;
struct ModuleInfo
{
void *Address;
char Path[256];
char CommandLine[256];
__UINT64_TYPE__ Size;
} Modules[MAX_MODULES];
struct RSDPInfo
{
/**
* @brief Signature
*/
__UINT8_TYPE__ Signature[8];
/**
* @brief Checksum
*/
__UINT8_TYPE__ Checksum;
/**
* @brief OEM ID
*/
__UINT8_TYPE__ OEMID[6];
/**
* @brief Revision
*/
__UINT8_TYPE__ Revision;
/**
* @brief Address of the Root System Description Table
*/
__UINT32_TYPE__ RSDTAddress;
/* END OF RSDP 1.0 */
/**
* @brief Length
*/
__UINT32_TYPE__ Length;
/**
* @brief Extended System Descriptor Table
*/
__UINT64_TYPE__ XSDTAddress;
/**
* @brief Extended checksum
*/
__UINT8_TYPE__ ExtendedChecksum;
/**
* @brief Reserved
*/
__UINT8_TYPE__ Reserved[3];
} __attribute__((packed)) * RSDP;
struct KernelInfo
{
void *PhysicalBase;
void *VirtualBase;
void *FileBase;
char CommandLine[256];
__UINT64_TYPE__ Size;
} Kernel;
struct BootloaderInfo
{
char Name[256];
char Version[64];
} Bootloader;
void *SMBIOSPtr;
};
#endif // !__FENNIX_KERNEL_BOOT_INFO_H__

12
FennixLoader/include/bitmap.hpp Normal file
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#pragma once
#include <types.h>
class Bitmap
{
public:
size_t Size;
uint8_t *Buffer;
bool operator[](uint64_t index);
bool Set(uint64_t index, bool value);
bool Get(uint64_t index);
};

89
FennixLoader/include/debug.h Normal file
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#ifndef __FENNIX_KERNEL_DEBUGGER_H__
#define __FENNIX_KERNEL_DEBUGGER_H__
#include <types.h>
enum DebugLevel
{
DebugLevelNone = 0,
DebugLevelError = 1,
DebugLevelWarning = 2,
DebugLevelInfo = 3,
DebugLevelDebug = 4,
DebugLevelTrace = 5,
DebugLevelFixme = 6,
DebugLevelUbsan = 7
};
#ifdef __cplusplus
namespace SysDbg
{
void Write(DebugLevel Level, const char *File, int Line, const char *Function, const char *Format, ...);
void WriteLine(DebugLevel Level, const char *File, int Line, const char *Function, const char *Format, ...);
void LockedWrite(DebugLevel Level, const char *File, int Line, const char *Function, const char *Format, ...);
void LockedWriteLine(DebugLevel Level, const char *File, int Line, const char *Function, const char *Format, ...);
}
#define error(Format, ...) SysDbg::WriteLine(DebugLevelError, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define warn(Format, ...) SysDbg::WriteLine(DebugLevelWarning, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define info(Format, ...) SysDbg::WriteLine(DebugLevelInfo, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#ifdef DEBUG
#define debug(Format, ...) SysDbg::WriteLine(DebugLevelDebug, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define ubsan(Format, ...) SysDbg::WriteLine(DebugLevelUbsan, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#else
#define debug(Format, ...)
#define ubsan(Format, ...)
#endif
#define trace(Format, ...) SysDbg::WriteLine(DebugLevelTrace, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define fixme(Format, ...) SysDbg::WriteLine(DebugLevelFixme, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define locked_error(Format, ...) SysDbg::LockedWriteLine(DebugLevelError, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define locked_warn(Format, ...) SysDbg::LockedWriteLine(DebugLevelWarning, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define locked_info(Format, ...) SysDbg::LockedWriteLine(DebugLevelInfo, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#ifdef DEBUG
#define locked_debug(Format, ...) SysDbg::LockedWriteLine(DebugLevelDebug, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define locked_ubsan(Format, ...) SysDbg::LockedWriteLine(DebugLevelUbsan, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#else
#define locked_debug(Format, ...)
#define locked_ubsan(Format, ...)
#endif
#define locked_trace(Format, ...) SysDbg::LockedWriteLine(DebugLevelTrace, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define locked_fixme(Format, ...) SysDbg::LockedWriteLine(DebugLevelFixme, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#else
void SysDbgWrite(enum DebugLevel Level, const char *File, int Line, const char *Function, const char *Format, ...);
void SysDbgWriteLine(enum DebugLevel Level, const char *File, int Line, const char *Function, const char *Format, ...);
void SysDbgLockedWrite(enum DebugLevel Level, const char *File, int Line, const char *Function, const char *Format, ...);
void SysDbgLockedWriteLine(enum DebugLevel Level, const char *File, int Line, const char *Function, const char *Format, ...);
#define error(Format, ...) SysDbgWriteLine(DebugLevelError, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define warn(Format, ...) SysDbgWriteLine(DebugLevelWarning, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define info(Format, ...) SysDbgWriteLine(DebugLevelInfo, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#ifdef DEBUG
#define debug(Format, ...) SysDbgWriteLine(DebugLevelDebug, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define ubsan(Format, ...) SysDbgWriteLine(DebugLevelUbsan, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#else
#define debug(Format, ...)
#define ubsan(Format, ...)
#endif
#define trace(Format, ...) SysDbgWriteLine(DebugLevelTrace, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define fixme(Format, ...) SysDbgWriteLine(DebugLevelFixme, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define locked_error(Format, ...) SysDbgLockedWriteLine(DebugLevelError, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define locked_warn(Format, ...) SysDbgLockedWriteLine(DebugLevelWarning, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define locked_info(Format, ...) SysDbgLockedWriteLine(DebugLevelInfo, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#ifdef DEBUG
#define locked_debug(Format, ...) SysDbgLockedWriteLine(DebugLevelDebug, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define locked_ubsan(Format, ...) SysDbgLockedWriteLine(DebugLevelUbsan, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#else
#define locked_debug(Format, ...)
#define locked_ubsan(Format, ...)
#endif
#define locked_trace(Format, ...) SysDbgLockedWriteLine(DebugLevelTrace, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#define locked_fixme(Format, ...) SysDbgLockedWriteLine(DebugLevelFixme, __FILE__, __LINE__, __FUNCTION__, Format, ##__VA_ARGS__)
#endif // __cplusplus
#endif // !__FENNIX_KERNEL_DEBUGGER_H__

476
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#ifndef __FENNIX_KERNEL_ELF_H__
#define __FENNIX_KERNEL_ELF_H__
#include <types.h>
// https://wiki.osdev.org/ELF_Tutorial
// https://github.com/torvalds/linux/blob/master/include/uapi/linux/elf.h
/* 32-bit ELF base types. */
typedef uint32_t Elf32_Addr;
typedef uint16_t Elf32_Half;
typedef uint32_t Elf32_Off;
typedef int32_t Elf32_Sword;
typedef uint32_t Elf32_Word;
/* 64-bit ELF base types. */
typedef uint64_t Elf64_Addr;
typedef uint16_t Elf64_Half;
typedef int16_t Elf64_SHalf;
typedef uint64_t Elf64_Off;
typedef int32_t Elf64_Sword;
typedef uint32_t Elf64_Word;
typedef uint64_t Elf64_Xword;
typedef int64_t Elf64_Sxword;
#define EI_NIDENT 16
typedef struct elf32_hdr
{
unsigned char e_ident[EI_NIDENT];
Elf32_Half e_type;
Elf32_Half e_machine;
Elf32_Word e_version;
Elf32_Addr e_entry;
Elf32_Off e_phoff;
Elf32_Off e_shoff;
Elf32_Word e_flags;
Elf32_Half e_ehsize;
Elf32_Half e_phentsize;
Elf32_Half e_phnum;
Elf32_Half e_shentsize;
Elf32_Half e_shnum;
Elf32_Half e_shstrndx;
} Elf32_Ehdr;
typedef struct elf64_hdr
{
unsigned char e_ident[EI_NIDENT]; /* ELF "magic number" */
Elf64_Half e_type;
Elf64_Half e_machine;
Elf64_Word e_version;
Elf64_Addr e_entry; /* Entry point virtual address */
Elf64_Off e_phoff; /* Program header table file offset */
Elf64_Off e_shoff; /* Section header table file offset */
Elf64_Word e_flags;
Elf64_Half e_ehsize;
Elf64_Half e_phentsize;
Elf64_Half e_phnum;
Elf64_Half e_shentsize;
Elf64_Half e_shnum;
Elf64_Half e_shstrndx;
} Elf64_Ehdr;
typedef struct elf32_shdr
{
Elf32_Word sh_name;
Elf32_Word sh_type;
Elf32_Word sh_flags;
Elf32_Addr sh_addr;
Elf32_Off sh_offset;
Elf32_Word sh_size;
Elf32_Word sh_link;
Elf32_Word sh_info;
Elf32_Word sh_addralign;
Elf32_Word sh_entsize;
} Elf32_Shdr;
typedef struct elf64_shdr
{
Elf64_Word sh_name; /* Section name, index in string tbl */
Elf64_Word sh_type; /* Type of section */
Elf64_Xword sh_flags; /* Miscellaneous section attributes */
Elf64_Addr sh_addr; /* Section virtual addr at execution */
Elf64_Off sh_offset; /* Section file offset */
Elf64_Xword sh_size; /* Size of section in bytes */
Elf64_Word sh_link; /* Index of another section */
Elf64_Word sh_info; /* Additional section information */
Elf64_Xword sh_addralign; /* Section alignment */
Elf64_Xword sh_entsize; /* Entry size if section holds table */
} Elf64_Shdr;
typedef struct {
Elf32_Word p_type;
Elf32_Off p_offset;
Elf32_Addr p_vaddr;
Elf32_Addr p_paddr;
Elf32_Word p_filesz;
Elf32_Word p_memsz;
Elf32_Word p_flags;
Elf32_Word p_align;
} Elf32_Phdr;
typedef struct
{
Elf64_Word p_type;
Elf64_Word p_flags;
Elf64_Off p_offset;
Elf64_Addr p_vaddr;
Elf64_Addr p_paddr;
Elf64_Xword p_filesz;
Elf64_Xword p_memsz;
Elf64_Xword p_align;
} Elf64_Phdr;
typedef struct elf32_rel
{
Elf32_Addr r_offset;
Elf32_Word r_info;
} Elf32_Rel;
typedef struct elf64_rel
{
Elf64_Addr r_offset; /* Location at which to apply the action */
Elf64_Xword r_info; /* index and type of relocation */
} Elf64_Rel;
typedef struct elf32_sym
{
Elf32_Word st_name;
Elf32_Addr st_value;
Elf32_Word st_size;
unsigned char st_info;
unsigned char st_other;
Elf32_Half st_shndx;
} Elf32_Sym;
typedef struct elf64_sym
{
Elf64_Word st_name; /* Symbol name, index in string tbl */
unsigned char st_info; /* Type and binding attributes */
unsigned char st_other; /* No defined meaning, 0 */
Elf64_Half st_shndx; /* Associated section index */
Elf64_Addr st_value; /* Value of the symbol */
Elf64_Xword st_size; /* Associated symbol size */
} Elf64_Sym;
struct Elf32_Dyn
{
Elf32_Sword d_tag; /* Type of dynamic table entry. */
union
{
Elf32_Word d_val; /* Integer value of entry. */
Elf32_Addr d_ptr; /* Pointer value of entry. */
} d_un;
};
struct Elf64_Dyn
{
Elf64_Sxword d_tag; /* Type of dynamic table entry. */
union
{
Elf64_Xword d_val; /* Integer value of entry. */
Elf64_Addr d_ptr; /* Pointer value of entry. */
} d_un;
};
typedef struct
{
Elf64_Addr r_offset;
Elf64_Xword r_info;
Elf64_Sxword r_addend;
} Elf64_Rela;
enum Elf_Ident
{
EI_MAG0 = 0, // 0x7F
EI_MAG1 = 1, // 'E'
EI_MAG2 = 2, // 'L'
EI_MAG3 = 3, // 'F'
EI_CLASS = 4, // Architecture (32/64)
EI_DATA = 5, // Byte Order
EI_VERSION = 6, // ELF Version
EI_OSABI = 7, // OS Specific
EI_ABIVERSION = 8, // OS Specific
EI_PAD = 9 // Padding
};
enum Elf_OSABI
{
ELFOSABI_NONE = 0,
ELFOSABI_HPUX = 1,
ELFOSABI_NETBSD = 2,
ELFOSABI_LINUX = 3,
ELFOSABI_HURD = 4,
ELFOSABI_SOLARIS = 6,
ELFOSABI_AIX = 7,
ELFOSABI_IRIX = 8,
ELFOSABI_FREEBSD = 9,
ELFOSABI_TRU64 = 10,
ELFOSABI_MODESTO = 11,
ELFOSABI_OPENBSD = 12,
ELFOSABI_OPENVMS = 13,
ELFOSABI_NSK = 14,
ELFOSABI_AROS = 15,
ELFOSABI_FENIXOS = 16,
ELFOSABI_CLOUDABI = 17,
ELFOSABI_OPENVOS = 18,
ELFOSABI_C6000_ELFABI = 64,
ELFOSABI_C6000_LINUX = 65,
ELFOSABI_ARM = 97,
ELFOSABI_STANDALONE = 255
};
enum Elf_Type
{
ET_NONE = 0, // Unknown Type
ET_REL = 1, // Relocatable File
ET_EXEC = 2, // Executable File
ET_DYN = 3, // Shared Object File
ET_CORE = 4, // Core File
ET_LOPROC = 0xff00, // Processor Specific
ET_HIPROC = 0xffff // Processor Specific
};
enum RtT_Types
{
R_386_NONE = 0, // No relocation
R_386_32 = 1, // Symbol + Offset
R_386_PC32 = 2, // Symbol + Offset - Section Offset
R_X86_64_NONE = 0,
R_X86_64_64 = 1,
R_X86_64_PC32 = 2,
R_X86_64_GOT32 = 3,
R_X86_64_PLT32 = 4,
R_X86_64_COPY = 5,
R_X86_64_GLOB_DAT = 6,
R_X86_64_JUMP_SLOT = 7,
R_X86_64_RELATIVE = 8,
R_X86_64_GOTPCREL = 9,
R_X86_64_32 = 10,
R_X86_64_32S = 11,
R_X86_64_16 = 12,
};
enum ProgFlags_Types
{
PF_X = 1,
PF_W = 2,
PF_R = 4
};
enum StT_Bindings
{
/**
* @brief Local symbol. Symbol is not visible outside the object file.
*/
STB_LOCAL = 0,
/**
* @brief Global symbol. These symbols are visible to all object files being combined.
*/
STB_GLOBAL = 1,
/**
* @brief Weak symbols. These symbols are like global symbols, but their definitions are not required. Weak symbols are not visible outside the object file containing their definition.
*/
STB_WEAK = 2,
/**
* @brief Values in this inclusive range are reserved for operating system-specific semantics.
*/
STB_LOOS = 10,
/**
* @brief Values in this inclusive range are reserved for operating system-specific semantics.
*/
STB_HIOS = 12,
/**
* @brief Values in this inclusive range are reserved for processor-specific semantics.
*/
STB_LOPROC = 13,
/**
* @brief Values in this inclusive range are reserved for processor-specific semantics.
*/
STB_HIPROC = 15
};
enum StT_Types
{
STT_NOTYPE = 0, // No type
STT_OBJECT = 1, // Variables, arrays, etc.
STT_FUNC = 2 // Methods or functions
};
enum SegmentTypes
{
PT_NULL = 0,
PT_LOAD = 1,
PT_DYNAMIC = 2,
PT_INTERP = 3,
PT_NOTE = 4,
PT_SHLIB = 5,
PT_PHDR = 6,
PT_TLS = 7,
PT_LOSUNW = 0x6ffffffa,
PT_SUNWBSS = 0x6ffffffb,
PT_SUNWSTACK = 0x6ffffffa,
PT_HISUNW = 0x6fffffff,
PT_LOPROC = 0x70000000,
PT_HIPROC = 0x7fffffff
};
/* https://docs.oracle.com/cd/E19683-01/817-3677/chapter6-42444/index.html */
enum DynamicArrayTags
{
DT_NULL = 0,
DT_NEEDED = 1,
DT_PLTRELSZ = 2,
DT_PLTGOT = 3,
DT_HASH = 4,
DT_STRTAB = 5,
DT_SYMTAB = 6,
DT_RELA = 7,
DT_RELASZ = 8,
DT_RELAENT = 9,
DT_STRSZ = 10,
DT_SYMENT = 11,
DT_INIT = 12,
DT_FINI = 13,
DT_SONAME = 14,
DT_RPATH = 15,
DT_SYMBOLIC = 16,
DT_REL = 17,
DT_RELSZ = 18,
DT_RELENT = 19,
DT_PLTREL = 20,
DT_DEBUG = 21,
DT_TEXTREL = 22,
DT_JMPREL = 23,
DT_BIND_NOW = 24,
DT_INIT_ARRAY = 25,
DT_FINI_ARRAY = 26,
DT_INIT_ARRAYSZ = 27,
DT_FINI_ARRAYSZ = 28,
DT_RUNPATH = 29,
DT_FLAGS = 30,
DT_ENCODING = 32,
DT_PREINIT_ARRAY = 32,
DT_PREINIT_ARRAYSZ = 33,
DT_LOOS = 0x6000000d,
DT_SUNW_RTLDINF = 0x6000000e,
DT_HIOS = 0x6ffff000,
DT_VALRNGLO = 0x6ffffd00,
DT_CHECKSUM = 0x6ffffdf8,
DT_PLTPADSZ = 0x6ffffdf9,
DT_MOVEENT = 0x6ffffdfa,
DT_MOVESZ = 0x6ffffdfb,
DT_FEATURE_1 = 0x6ffffdfc,
DT_POSFLAG_1 = 0x6ffffdfd,
DT_SYMINSZ = 0x6ffffdfe,
DT_SYMINENT = 0x6ffffdff,
DT_VALRNGHI = 0x6ffffdff,
DT_ADDRRNGLO = 0x6ffffe00,
DT_CONFIG = 0x6ffffefa,
DT_DEPAUDIT = 0x6ffffefb,
DT_AUDIT = 0x6ffffefc,
DT_PLTPAD = 0x6ffffefd,
DT_MOVETAB = 0x6ffffefe,
DT_SYMINFO = 0x6ffffeff,
DT_ADDRRNGHI = 0x6ffffeff,
DT_RELACOUNT = 0x6ffffff9,
DT_RELCOUNT = 0x6ffffffa,
DT_FLAGS_1 = 0x6ffffffb,
DT_VERDEF = 0x6ffffffc,
DT_VERDEFNUM = 0x6ffffffd,
DT_VERNEED = 0x6ffffffe,
DT_VERNEEDNUM = 0x6fffffff,
DT_LOPROC = 0x70000000,
DT_SPARC_REGISTER = 0x70000001,
DT_AUXILIARY = 0x7ffffffd,
DT_USED = 0x7ffffffe,
DT_FILTER = 0x7fffffff,
DT_HIPROC = 0x7fffffff
};
// used for Elf64_Sym st_info
#define ELF32_ST_BIND(info) ((info) >> 4)
#define ELF32_ST_TYPE(info) ((info)&0xf)
#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type)&0xf))
#define ELF64_ST_BIND(info) ((info) >> 4)
#define ELF64_ST_TYPE(info) ((info)&0xf)
#define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type)&0xf))
// used for Elf64_Sym st_other
#define ELF32_ST_VISIBILITY(o) ((o)&0x3)
#define ELF64_ST_VISIBILITY(o) ((o)&0x3)
#define DO_386_32(S, A) ((S) + (A))
#define DO_386_PC32(S, A, P) ((S) + (A) - (P))
#define DO_64_64(S, A) ((S) + (A))
#define DO_64_PC32(S, A, P) ((S) + (A) - (P))
#define ELF32_R_SYM(i) ((i) >> 8)
#define ELF32_R_TYPE(i) ((unsigned char)(i))
#define ELF32_R_INFO(s, t) (((s) << 8) + (unsigned char)(t))
#define ELF64_R_SYM(i) ((i) >> 32)
#define ELF64_R_TYPE(i) ((i)&0xffffffffL)
#define ELF64_R_INFO(s, t) (((s) << 32) + ((t)&0xffffffffL))
#define SHN_UNDEF 0
#define SHN_ABS 0xfff1
#define SHT_NOBITS 8
#define SHT_REL 9
#define SHF_WRITE 0x1
#define SHF_ALLOC 0x2
#define EM_386 0x3 // x86 Machine Type
#define EM_X86_64 0x3E // 64bit
#define EM_ARM 0x28 // ARM
#define EM_AARCH64 0xb7 // ARM64
#define EV_CURRENT 0x1 // ELF Current Version
#define ELFMAG0 0x7F // e_ident[EI_MAG0]
#define ELFMAG1 'E' // e_ident[EI_MAG1]
#define ELFMAG2 'L' // e_ident[EI_MAG2]
#define ELFMAG3 'F' // e_ident[EI_MAG3]
#define ELFDATANONE 0 /* e_ident[EI_DATA] */
#define ELFDATA2LSB 1
#define ELFDATA2MSB 2
#define ELFCLASSNONE 0 /* EI_CLASS */
#define ELFCLASS32 1
#define ELFCLASS64 2
#define ELFCLASSNUM 3
#define SHT_NULL 0 /* Section header table entry unused */
#define SHT_PROGBITS 1 /* Program data */
#define SHT_SYMTAB 2 /* Symbol table */
#define SHT_STRTAB 3 /* String table */
#define SHT_RELA 4 /* Relocation entries with addends */
#define SHT_HASH 5 /* Symbol hash table */
#define SHT_DYNAMIC 6 /* Dynamic linking information */
#define SHT_NOTE 7 /* Notes */
#define SHT_NOBITS 8 /* Program space with no data (bss) */
#define SHT_REL 9 /* Relocation entries, no addends */
#define SHT_SHLIB 10 /* Reserved */
#define SHT_DYNSYM 11 /* Dynamic linker symbol table */
#define SHT_INIT_ARRAY 14 /* Array of constructors */
#define SHT_FINI_ARRAY 15 /* Array of destructors */
#define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */
#define SHT_GROUP 17 /* Section group */
#define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */
#define SHT_NUM 19 /* Number of defined types. */
#define SHT_LOOS 0x60000000 /* Start OS-specific. */
#define SHT_GNU_ATTRIBUTES 0x6ffffff5 /* Object attributes. */
#define SHT_GNU_HASH 0x6ffffff6 /* GNU-style hash table. */
#define SHT_GNU_LIBLIST 0x6ffffff7 /* Prelink library list */
#define SHT_CHECKSUM 0x6ffffff8 /* Checksum for DSO content. */
#define SHT_LOSUNW 0x6ffffffa /* Sun-specific low bound. */
#define SHT_SUNW_move 0x6ffffffa
#define SHT_SUNW_COMDAT 0x6ffffffb
#define SHT_SUNW_syminfo 0x6ffffffc
#define SHT_GNU_verdef 0x6ffffffd /* Version definition section. */
#define SHT_GNU_verneed 0x6ffffffe /* Version needs section. */
#define SHT_GNU_versym 0x6fffffff /* Version symbol table. */
#define SHT_HISUNW 0x6fffffff /* Sun-specific high bound. */
#define SHT_HIOS 0x6fffffff /* End OS-specific type */
#define SHT_LOPROC 0x70000000 /* Start of processor-specific */
#define SHT_HIPROC 0x7fffffff /* End of processor-specific */
#define SHT_LOUSER 0x80000000 /* Start of application-specific */
#define SHT_HIUSER 0x8fffffff /* End of application-specific */
#endif // !__FENNIX_KERNEL_ELF_H__

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#pragma once
#include <bitmap.hpp>
#include <binfo.h>
#include <debug.h>
#include <types.h>
extern uintptr_t _kernel_start, _kernel_end;
// kilobyte
#define TO_KB(d) ((d) / 1024)
// megabyte
#define TO_MB(d) ((d) / 1024 / 1024)
// gigabyte
#define TO_GB(d) ((d) / 1024 / 1024 / 1024)
#define PAGE_SIZE 0x1000 // 4KB
#define PAGE_SIZE_4K PAGE_SIZE // 4KB
#define PAGE_SIZE_2M 0x200000 // 2MB
#define PAGE_SIZE_4M 0x400000 // 4MB
#define PAGE_SIZE_1G 0x40000000 // 1GB
// To pages
#define TO_PAGES(d) (((d) + PAGE_SIZE - 1) / PAGE_SIZE)
// From pages
#define FROM_PAGES(d) ((d)*PAGE_SIZE)
enum PTFlag
{
/** @brief Present */
P = 1 << 0,
/** @brief Read/Write */
RW = 1 << 1,
/** @brief User/Supervisor */
US = 1 << 2,
/** @brief Write-Through */
PWT = 1 << 3,
/** @brief Cache Disable */
PCD = 1 << 4,
/** @brief Accessed */
A = 1 << 5,
/** @brief Dirty */
D = 1 << 6,
/** @brief Page Size */
PS = 1 << 7,
/** @brief Global */
G = 1 << 8,
/** @brief Available 0 */
AVL0 = 1 << 9,
/** @brief Available 1 */
AVL1 = 1 << 10,
/** @brief Available 2 */
AVL2 = 1 << 11,
/** @brief Page Attribute Table */
PAT = 1 << 12,
/** @brief Available 3 */
AVL3 = (uint64_t)1 << 52,
/** @brief Available 4 */
AVL4 = (uint64_t)1 << 53,
/** @brief Available 5 */
AVL5 = (uint64_t)1 << 54,
/** @brief Available 6 */
AVL6 = (uint64_t)1 << 55,
/** @brief Available 7 */
AVL7 = (uint64_t)1 << 56,
/** @brief Available 8 */
AVL8 = (uint64_t)1 << 57,
/** @brief Available 9 */
AVL9 = (uint64_t)1 << 58,
/** @brief Protection Key 0 */
PK0 = (uint64_t)1 << 59,
/** @brief Protection Key 1 */
PK1 = (uint64_t)1 << 60,
/** @brief Protection Key 2 */
PK2 = (uint64_t)1 << 61,
/** @brief Protection Key 3 */
PK3 = (uint64_t)1 << 62,
/** @brief Execute Disable */
XD = (uint64_t)1 << 63
};
namespace Memory32
{
union __packed PageTableEntry
{
struct
{
uint32_t Present : 1; // 0
uint32_t ReadWrite : 1; // 1
uint32_t UserSupervisor : 1; // 2
uint32_t WriteThrough : 1; // 3
uint32_t CacheDisable : 1; // 4
uint32_t Accessed : 1; // 5
uint32_t Dirty : 1; // 6
uint32_t PageAttributeTable : 1; // 7
uint32_t Global : 1; // 8
uint32_t Available0 : 3; // 9-11
uint32_t Address : 20; // 12-31
};
uint32_t raw;
void SetAddress(uintptr_t _Address)
{
_Address &= 0x000FFFFF;
this->raw &= 0xFFC00003;
this->raw |= (_Address << 12);
}
uintptr_t GetAddress()
{
return (this->raw & 0x003FFFFF000) >> 12;
}
};
struct __packed PageTableEntryPtr
{
PageTableEntry Entries[1024];
};
union __packed PageDirectoryEntry
{
struct
{
uint32_t Present : 1; // 0
uint32_t ReadWrite : 1; // 1
uint32_t UserSupervisor : 1; // 2
uint32_t WriteThrough : 1; // 3
uint32_t CacheDisable : 1; // 4
uint32_t Accessed : 1; // 5
uint32_t Available0 : 1; // 6
uint32_t PageSize : 1; // 7
uint32_t Available1 : 4; // 8-11
uint32_t Address : 20; // 12-31
};
uint32_t raw;
void SetAddress(uintptr_t _Address)
{
_Address &= 0x000FFFFF;
this->raw &= 0xFFC00003;
this->raw |= (_Address << 12);
}
uintptr_t GetAddress()
{
return (this->raw & 0x003FFFFF000) >> 12;
}
};
struct PageTable
{
PageDirectoryEntry Entries[1024];
} __aligned(0x1000);
class Physical
{
private:
uint64_t PageBitmapIndex = 0;
Bitmap PageBitmap;
public:
uint64_t TotalMemory = 0;
uint64_t FreeMemory = 0;
uint64_t ReservedMemory = 0;
uint64_t UsedMemory = 0;
void LockPage(void *Address);
void LockPages(void *Address, size_t PageCount);
void ReservePage(void *Address);
void ReservePages(void *Address, size_t PageCount);
void UnreservePage(void *Address);
void UnreservePages(void *Address, size_t PageCount);
void *RequestPage();
void *RequestPages(size_t Count);
void FreePage(void *Address);
void FreePages(void *Address, size_t Count);
void Init(BootInfo *Info);
Physical();
~Physical();
};
class Virtual
{
private:
PageTable *Table = nullptr;
public:
class PageMapIndexer
{
public:
uintptr_t PDEIndex = 0;
uintptr_t PTEIndex = 0;
PageMapIndexer(uintptr_t VirtualAddress)
{
uintptr_t Address = VirtualAddress;
Address >>= 12;
this->PTEIndex = Address & 0x3FF;
Address >>= 10;
this->PDEIndex = Address & 0x3FF;
}
};
void Map(void *VirtualAddress, void *PhysicalAddress, uint64_t Flag = PTFlag::P);
__always_inline inline void Map(void *VirtualAddress, void *PhysicalAddress, size_t Length, uint64_t Flags)
{
for (uintptr_t i = 0; i < Length; i += PAGE_SIZE_4K)
this->Map((void *)((uintptr_t)VirtualAddress + i), (void *)((uintptr_t)PhysicalAddress + i), Flags);
}
Virtual(PageTable *Table = nullptr);
~Virtual();
};
}
namespace Memory64
{
union __packed PageTableEntry
{
struct
{
uint64_t Present : 1; // 0
uint64_t ReadWrite : 1; // 1
uint64_t UserSupervisor : 1; // 2
uint64_t WriteThrough : 1; // 3
uint64_t CacheDisable : 1; // 4
uint64_t Accessed : 1; // 5
uint64_t Dirty : 1; // 6
uint64_t PageAttributeTable : 1; // 7
uint64_t Global : 1; // 8
uint64_t Available0 : 3; // 9-11
uint64_t Address : 40; // 12-51
uint64_t Available1 : 7; // 52-58
uint64_t ProtectionKey : 4; // 59-62
uint64_t ExecuteDisable : 1; // 63
};
uint64_t raw;
/** @brief Set Address */
void SetAddress(uintptr_t _Address)
{
_Address &= 0x000000FFFFFFFFFF;
this->raw &= 0xFFF0000000000FFF;
this->raw |= (_Address << 12);
}
/** @brief Get Address */
uintptr_t GetAddress()
{
return (this->raw & 0x000FFFFFFFFFF000) >> 12;
}
};
struct __packed PageTableEntryPtr
{
PageTableEntry Entries[511];
};
union __packed PageDirectoryEntry
{
struct
{
uint64_t Present : 1; // 0
uint64_t ReadWrite : 1; // 1
uint64_t UserSupervisor : 1; // 2
uint64_t WriteThrough : 1; // 3
uint64_t CacheDisable : 1; // 4
uint64_t Accessed : 1; // 5
uint64_t Available0 : 1; // 6
uint64_t PageSize : 1; // 7
uint64_t Available1 : 4; // 8-11
uint64_t Address : 40; // 12-51
uint64_t Available2 : 11; // 52-62
uint64_t ExecuteDisable : 1; // 63
};
struct
{
uint64_t Present : 1; // 0
uint64_t ReadWrite : 1; // 1
uint64_t UserSupervisor : 1; // 2
uint64_t WriteThrough : 1; // 3
uint64_t CacheDisable : 1; // 4
uint64_t Accessed : 1; // 5
uint64_t Dirty : 1; // 6
uint64_t PageSize : 1; // 7
uint64_t Global : 1; // 8
uint64_t Available0 : 3; // 9-11
uint64_t PageAttributeTable : 1; // 12
uint64_t Reserved0 : 8; // 13-20
uint64_t Address : 31; // 21-51
uint64_t Available1 : 7; // 52-58
uint64_t ProtectionKey : 4; // 59-62
uint64_t ExecuteDisable : 1; // 63
} TwoMB;
uint64_t raw;
/** @brief Set PageTableEntryPtr address */
void SetAddress(uintptr_t _Address)
{
_Address &= 0x000000FFFFFFFFFF;
this->raw &= 0xFFF0000000000FFF;
this->raw |= (_Address << 12);
}
/** @brief Get PageTableEntryPtr address */
uintptr_t GetAddress()
{
return (this->raw & 0x000FFFFFFFFFF000) >> 12;
}
};
struct __packed PageDirectoryEntryPtr
{
PageDirectoryEntry Entries[511];
};
union __packed PageDirectoryPointerTableEntry
{
struct
{
uint64_t Present : 1; // 0
uint64_t ReadWrite : 1; // 1
uint64_t UserSupervisor : 1; // 2
uint64_t WriteThrough : 1; // 3
uint64_t CacheDisable : 1; // 4
uint64_t Accessed : 1; // 5
uint64_t Available0 : 1; // 6
uint64_t PageSize : 1; // 7
uint64_t Available1 : 4; // 8-11
uint64_t Address : 40; // 12-51
uint64_t Available2 : 11; // 52-62
uint64_t ExecuteDisable : 1; // 63
};
struct
{
uint64_t Present : 1; // 0
uint64_t ReadWrite : 1; // 1
uint64_t UserSupervisor : 1; // 2
uint64_t WriteThrough : 1; // 3
uint64_t CacheDisable : 1; // 4
uint64_t Accessed : 1; // 5
uint64_t Dirty : 1; // 6
uint64_t PageSize : 1; // 7
uint64_t Global : 1; // 8
uint64_t Available0 : 3; // 9-11
uint64_t PageAttributeTable : 1; // 12
uint64_t Reserved0 : 17; // 13-29
uint64_t Address : 22; // 30-51
uint64_t Available1 : 7; // 52-58
uint64_t ProtectionKey : 4; // 59-62
uint64_t ExecuteDisable : 1; // 63
} OneGB;
uint64_t raw;
/** @brief Set PageDirectoryEntryPtr address */
void SetAddress(uintptr_t _Address)
{
_Address &= 0x000000FFFFFFFFFF;
this->raw &= 0xFFF0000000000FFF;
this->raw |= (_Address << 12);
}
/** @brief Get PageDirectoryEntryPtr address */
uintptr_t GetAddress()
{
return (this->raw & 0x000FFFFFFFFFF000) >> 12;
}
};
struct __packed PageDirectoryPointerTableEntryPtr
{
PageDirectoryPointerTableEntry Entries[511];
};
union __packed PageMapLevel4
{
struct
{
uint64_t Present : 1; // 0
uint64_t ReadWrite : 1; // 1
uint64_t UserSupervisor : 1; // 2
uint64_t WriteThrough : 1; // 3
uint64_t CacheDisable : 1; // 4
uint64_t Accessed : 1; // 5
uint64_t Available0 : 1; // 6
uint64_t Reserved0 : 1; // 7
uint64_t Available1 : 4; // 8-11
uint64_t Address : 40; // 12-51
uint64_t Available2 : 11; // 52-62
uint64_t ExecuteDisable : 1; // 63
};
uint64_t raw;
/** @brief Set PageDirectoryPointerTableEntryPtr address */
void SetAddress(uintptr_t _Address)
{
_Address &= 0x000000FFFFFFFFFF;
this->raw &= 0xFFF0000000000FFF;
this->raw |= (_Address << 12);
}
/** @brief Get PageDirectoryPointerTableEntryPtr address */
uintptr_t GetAddress()
{
return (this->raw & 0x000FFFFFFFFFF000) >> 12;
}
};
struct PageTable
{
PageMapLevel4 Entries[511];
/**
* @brief Update CR3 with this PageTable
*/
void Update()
{
asmv("mov %0, %%cr3" ::"r"(this));
}
} __aligned(0x1000);
class Physical
{
private:
uint64_t PageBitmapIndex = 0;
Bitmap PageBitmap;
public:
uint64_t TotalMemory = 0;
uint64_t FreeMemory = 0;
uint64_t ReservedMemory = 0;
uint64_t UsedMemory = 0;
void LockPage(void *Address);
void LockPages(void *Address, size_t PageCount);
void ReservePage(void *Address);
void ReservePages(void *Address, size_t PageCount);
void UnreservePage(void *Address);
void UnreservePages(void *Address, size_t PageCount);
void *RequestPage();
void *RequestPages(size_t Count);
void FreePage(void *Address);
void FreePages(void *Address, size_t Count);
void Init(BootInfo *Info);
Physical();
~Physical();
};
class Virtual
{
private:
PageTable *Table = nullptr;
public:
enum MapType
{
NoMapType,
FourKB,
TwoMB,
OneGB
};
class PageMapIndexer
{
public:
uintptr_t PMLIndex = 0;
uintptr_t PDPTEIndex = 0;
uintptr_t PDEIndex = 0;
uintptr_t PTEIndex = 0;
PageMapIndexer(uintptr_t VirtualAddress)
{
uintptr_t Address = VirtualAddress;
Address >>= 12;
this->PTEIndex = Address & 0x1FF;
Address >>= 9;
this->PDEIndex = Address & 0x1FF;
Address >>= 9;
this->PDPTEIndex = Address & 0x1FF;
Address >>= 9;
this->PMLIndex = Address & 0x1FF;
}
};
bool Check(void *VirtualAddress, PTFlag Flag = PTFlag::P, MapType Type = MapType::FourKB);
void *GetPhysical(void *VirtualAddress);
void Map(void *VirtualAddress, void *PhysicalAddress, uint64_t Flag = PTFlag::P, MapType Type = MapType::FourKB);
__always_inline inline void Map(void *VirtualAddress, void *PhysicalAddress, size_t Length, uint64_t Flags, MapType Type = MapType::FourKB)
{
int PageSize = PAGE_SIZE_4K;
if (Type == MapType::TwoMB)
PageSize = PAGE_SIZE_2M;
else if (Type == MapType::OneGB)
PageSize = PAGE_SIZE_1G;
for (uintptr_t i = 0; i < Length; i += PageSize)
this->Map((void *)((uintptr_t)VirtualAddress + i), (void *)((uintptr_t)PhysicalAddress + i), Flags, Type);
}
__always_inline inline MapType OptimizedMap(void *VirtualAddress, void *PhysicalAddress, size_t Length, uint64_t Flags, bool Fit = false, bool FailOnModulo = false)
{
if (unlikely(Fit))
{
while (Length >= PAGE_SIZE_1G)
{
this->Map(VirtualAddress, PhysicalAddress, Length, Flags, Virtual::MapType::OneGB);
VirtualAddress = (void *)((uintptr_t)VirtualAddress + PAGE_SIZE_1G);
PhysicalAddress = (void *)((uintptr_t)PhysicalAddress + PAGE_SIZE_1G);
Length -= PAGE_SIZE_1G;
}
while (Length >= PAGE_SIZE_2M)
{
this->Map(VirtualAddress, PhysicalAddress, Length, Flags, Virtual::MapType::TwoMB);
VirtualAddress = (void *)((uintptr_t)VirtualAddress + PAGE_SIZE_2M);
PhysicalAddress = (void *)((uintptr_t)PhysicalAddress + PAGE_SIZE_2M);
Length -= PAGE_SIZE_2M;
}
while (Length >= PAGE_SIZE_4K)
{
this->Map(VirtualAddress, PhysicalAddress, Length, Flags, Virtual::MapType::FourKB);
VirtualAddress = (void *)((uintptr_t)VirtualAddress + PAGE_SIZE_4K);
PhysicalAddress = (void *)((uintptr_t)PhysicalAddress + PAGE_SIZE_4K);
Length -= PAGE_SIZE_4K;
}
return Virtual::MapType::FourKB;
}
Virtual::MapType Type = Virtual::MapType::FourKB;
if (Length >= PAGE_SIZE_1G)
{
Type = Virtual::MapType::OneGB;
if (Length % PAGE_SIZE_1G != 0)
{
warn("Length is not a multiple of 1GB.");
if (FailOnModulo)
return Virtual::MapType::NoMapType;
}
}
else if (Length >= PAGE_SIZE_2M)
{
Type = Virtual::MapType::TwoMB;
if (Length % PAGE_SIZE_2M != 0)
{
warn("Length is not a multiple of 2MB.");
if (FailOnModulo)
return Virtual::MapType::NoMapType;
}
}
this->Map(VirtualAddress, PhysicalAddress, Length, Flags, Type);
return Type;
}
void Unmap(void *VirtualAddress, MapType Type = MapType::FourKB);
__always_inline inline void Unmap(void *VirtualAddress, size_t Length, MapType Type = MapType::FourKB)
{
int PageSize = PAGE_SIZE_4K;
if (Type == MapType::TwoMB)
PageSize = PAGE_SIZE_2M;
else if (Type == MapType::OneGB)
PageSize = PAGE_SIZE_1G;
for (uintptr_t i = 0; i < Length; i += PageSize)
this->Unmap((void *)((uintptr_t)VirtualAddress + i), Type);
}
__always_inline inline void Remap(void *VirtualAddress, void *PhysicalAddress, uint64_t Flags, MapType Type = MapType::FourKB)
{
this->Unmap(VirtualAddress, Type);
this->Map(VirtualAddress, PhysicalAddress, Flags, Type);
}
Virtual(PageTable *Table = nullptr);
~Virtual();
};
}
extern Memory32::Physical KernelAllocator32;
extern Memory32::PageTable *KernelPageTable32;
extern Memory64::Physical KernelAllocator64;
extern Memory64::PageTable *KernelPageTable64;
void *memcpy(void *dest, const void *src, size_t n);
void *memset(void *s, int c, size_t n);
void InitializeMemoryManagement(BootInfo *Info, bool is32);

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/* multiboot.h - Multiboot header file. */
/* Copyright (C) 1999,2003,2007,2008,2009,2010 Free Software Foundation, Inc.
*
* 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 ANY
* DEVELOPER OR DISTRIBUTOR 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 MULTIBOOT_HEADER
#define MULTIBOOT_HEADER 1
/* How many bytes from the start of the file we search for the header. */
#define MULTIBOOT_SEARCH 8192
#define MULTIBOOT_HEADER_ALIGN 4
/* The magic field should contain this. */
#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
/* This should be in %eax. */
#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
/* Alignment of multiboot modules. */
#define MULTIBOOT_MOD_ALIGN 0x00001000
/* Alignment of the multiboot info structure. */
#define MULTIBOOT_INFO_ALIGN 0x00000004
/* Flags set in the ’flags’ member of the multiboot header. */
/* Align all boot modules on i386 page (4KB) boundaries. */
#define MULTIBOOT_PAGE_ALIGN 0x00000001
/* Must pass memory information to OS. */
#define MULTIBOOT_MEMORY_INFO 0x00000002
/* Must pass video information to OS. */
#define MULTIBOOT_VIDEO_MODE 0x00000004
/* This flag indicates the use of the address fields in the header. */
#define MULTIBOOT_AOUT_KLUDGE 0x00010000
/* Flags to be set in the ’flags’ member of the multiboot info structure. */
/* is there basic lower/upper memory information? */
#define MULTIBOOT_INFO_MEMORY 0x00000001
/* is there a boot device set? */
#define MULTIBOOT_INFO_BOOTDEV 0x00000002
/* is the command-line defined? */
#define MULTIBOOT_INFO_CMDLINE 0x00000004
/* are there modules to do something with? */
#define MULTIBOOT_INFO_MODS 0x00000008
/* These next two are mutually exclusive */
/* is there a symbol table loaded? */
#define MULTIBOOT_INFO_AOUT_SYMS 0x00000010
/* is there an ELF section header table? */
#define MULTIBOOT_INFO_ELF_SHDR 0X00000020
/* is there a full memory map? */
#define MULTIBOOT_INFO_MEM_MAP 0x00000040
/* Is there drive info? */
#define MULTIBOOT_INFO_DRIVE_INFO 0x00000080
/* Is there a config table? */
#define MULTIBOOT_INFO_CONFIG_TABLE 0x00000100
/* Is there a boot loader name? */
#define MULTIBOOT_INFO_BOOT_LOADER_NAME 0x00000200
/* Is there a APM table? */
#define MULTIBOOT_INFO_APM_TABLE 0x00000400
/* Is there video information? */
#define MULTIBOOT_INFO_VBE_INFO 0x00000800
#define MULTIBOOT_INFO_FRAMEBUFFER_INFO 0x00001000
#ifndef ASM_FILE
typedef unsigned char multiboot_uint8_t;
typedef unsigned short multiboot_uint16_t;
typedef unsigned int multiboot_uint32_t;
typedef unsigned long long multiboot_uint64_t;
struct multiboot_header
{
/* Must be MULTIBOOT_MAGIC - see above. */
multiboot_uint32_t magic;
/* Feature flags. */
multiboot_uint32_t flags;
/* The above fields plus this one must equal 0 mod 2^32. */
multiboot_uint32_t checksum;
/* These are only valid if MULTIBOOT_AOUT_KLUDGE is set. */
multiboot_uint32_t header_addr;
multiboot_uint32_t load_addr;
multiboot_uint32_t load_end_addr;
multiboot_uint32_t bss_end_addr;
multiboot_uint32_t entry_addr;
/* These are only valid if MULTIBOOT_VIDEO_MODE is set. */
multiboot_uint32_t mode_type;
multiboot_uint32_t width;
multiboot_uint32_t height;
multiboot_uint32_t depth;
};
/* The symbol table for a.out. */
struct multiboot_aout_symbol_table
{
multiboot_uint32_t tabsize;
multiboot_uint32_t strsize;
multiboot_uint32_t addr;
multiboot_uint32_t reserved;
};
typedef struct multiboot_aout_symbol_table multiboot_aout_symbol_table_t;
/* The section header table for ELF. */
struct multiboot_elf_section_header_table
{
multiboot_uint32_t num;
multiboot_uint32_t size;
multiboot_uint32_t addr;
multiboot_uint32_t shndx;
};
typedef struct multiboot_elf_section_header_table multiboot_elf_section_header_table_t;
struct multiboot_info
{
/* Multiboot info version number */
multiboot_uint32_t flags;
/* Available memory from BIOS */
multiboot_uint32_t mem_lower;
multiboot_uint32_t mem_upper;
/* "root" partition */
multiboot_uint32_t boot_device;
/* Kernel command line */
multiboot_uint32_t cmdline;
/* Boot-Module list */
multiboot_uint32_t mods_count;
multiboot_uint32_t mods_addr;
union
{
multiboot_aout_symbol_table_t aout_sym;
multiboot_elf_section_header_table_t elf_sec;
} u;
/* Memory Mapping buffer */
multiboot_uint32_t mmap_length;
multiboot_uint32_t mmap_addr;
/* Drive Info buffer */
multiboot_uint32_t drives_length;
multiboot_uint32_t drives_addr;
/* ROM configuration table */
multiboot_uint32_t config_table;
/* Boot Loader Name */
multiboot_uint32_t boot_loader_name;
/* APM table */
multiboot_uint32_t apm_table;
/* Video */
multiboot_uint32_t vbe_control_info;
multiboot_uint32_t vbe_mode_info;
multiboot_uint16_t vbe_mode;
multiboot_uint16_t vbe_interface_seg;
multiboot_uint16_t vbe_interface_off;
multiboot_uint16_t vbe_interface_len;
multiboot_uint64_t framebuffer_addr;
multiboot_uint32_t framebuffer_pitch;
multiboot_uint32_t framebuffer_width;
multiboot_uint32_t framebuffer_height;
multiboot_uint8_t framebuffer_bpp;
#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0
#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1
#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2
multiboot_uint8_t framebuffer_type;
union
{
struct
{
multiboot_uint32_t framebuffer_palette_addr;
multiboot_uint16_t framebuffer_palette_num_colors;
};
struct
{
multiboot_uint8_t framebuffer_red_field_position;
multiboot_uint8_t framebuffer_red_mask_size;
multiboot_uint8_t framebuffer_green_field_position;
multiboot_uint8_t framebuffer_green_mask_size;
multiboot_uint8_t framebuffer_blue_field_position;
multiboot_uint8_t framebuffer_blue_mask_size;
};
};
};
typedef struct multiboot_info multiboot_info_t;
struct multiboot_color
{
multiboot_uint8_t red;
multiboot_uint8_t green;
multiboot_uint8_t blue;
};
struct multiboot_mmap_entry
{
multiboot_uint32_t size;
multiboot_uint64_t addr;
multiboot_uint64_t len;
#define MULTIBOOT_MEMORY_AVAILABLE 1
#define MULTIBOOT_MEMORY_RESERVED 2
#define MULTIBOOT_MEMORY_ACPI_RECLAIMABLE 3
#define MULTIBOOT_MEMORY_NVS 4
#define MULTIBOOT_MEMORY_BADRAM 5
multiboot_uint32_t type;
} __attribute__((packed));
typedef struct multiboot_mmap_entry multiboot_memory_map_t;
struct multiboot_mod_list
{
/* the memory used goes from bytes ’mod_start’ to ’mod_end-1’ inclusive */
multiboot_uint32_t mod_start;
multiboot_uint32_t mod_end;
/* Module command line */
multiboot_uint32_t cmdline;
/* padding to take it to 16 bytes (must be zero) */
multiboot_uint32_t pad;
};
typedef struct multiboot_mod_list multiboot_module_t;
/* APM BIOS info. */
struct multiboot_apm_info
{
multiboot_uint16_t version;
multiboot_uint16_t cseg;
multiboot_uint32_t offset;
multiboot_uint16_t cseg_16;
multiboot_uint16_t dseg;
multiboot_uint16_t flags;
multiboot_uint16_t cseg_len;
multiboot_uint16_t cseg_16_len;
multiboot_uint16_t dseg_len;
};
#endif /* ! ASM_FILE */
#endif /* ! MULTIBOOT_HEADER */

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/* multiboot2.h - Multiboot 2 header file. */
/* Copyright (C) 1999,2003,2007,2008,2009,2010 Free Software Foundation, Inc.
*
* 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 ANY
* DEVELOPER OR DISTRIBUTOR 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 MULTIBOOT_HEADER
#define MULTIBOOT_HEADER 1
/* How many bytes from the start of the file we search for the header. */
#define MULTIBOOT_SEARCH 32768
#define MULTIBOOT_HEADER_ALIGN 8
/* The magic field should contain this. */
#define MULTIBOOT2_HEADER_MAGIC 0xe85250d6
/* This should be in %eax. */
#define MULTIBOOT2_BOOTLOADER_MAGIC 0x36d76289
/* Alignment of multiboot modules. */
#define MULTIBOOT_MOD_ALIGN 0x00001000
/* Alignment of the multiboot info structure. */
#define MULTIBOOT_INFO_ALIGN 0x00000008
/* Flags set in the 'flags' member of the multiboot header. */
#define MULTIBOOT_TAG_ALIGN 8
#define MULTIBOOT_TAG_TYPE_END 0
#define MULTIBOOT_TAG_TYPE_CMDLINE 1
#define MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME 2
#define MULTIBOOT_TAG_TYPE_MODULE 3
#define MULTIBOOT_TAG_TYPE_BASIC_MEMINFO 4
#define MULTIBOOT_TAG_TYPE_BOOTDEV 5
#define MULTIBOOT_TAG_TYPE_MMAP 6
#define MULTIBOOT_TAG_TYPE_VBE 7
#define MULTIBOOT_TAG_TYPE_FRAMEBUFFER 8
#define MULTIBOOT_TAG_TYPE_ELF_SECTIONS 9
#define MULTIBOOT_TAG_TYPE_APM 10
#define MULTIBOOT_TAG_TYPE_EFI32 11
#define MULTIBOOT_TAG_TYPE_EFI64 12
#define MULTIBOOT_TAG_TYPE_SMBIOS 13
#define MULTIBOOT_TAG_TYPE_ACPI_OLD 14
#define MULTIBOOT_TAG_TYPE_ACPI_NEW 15
#define MULTIBOOT_TAG_TYPE_NETWORK 16
#define MULTIBOOT_TAG_TYPE_EFI_MMAP 17
#define MULTIBOOT_TAG_TYPE_EFI_BS 18
#define MULTIBOOT_TAG_TYPE_EFI32_IH 19
#define MULTIBOOT_TAG_TYPE_EFI64_IH 20
#define MULTIBOOT_TAG_TYPE_LOAD_BASE_ADDR 21
#define MULTIBOOT_HEADER_TAG_END 0
#define MULTIBOOT_HEADER_TAG_INFORMATION_REQUEST 1
#define MULTIBOOT_HEADER_TAG_ADDRESS 2
#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS 3
#define MULTIBOOT_HEADER_TAG_CONSOLE_FLAGS 4
#define MULTIBOOT_HEADER_TAG_FRAMEBUFFER 5
#define MULTIBOOT_HEADER_TAG_MODULE_ALIGN 6
#define MULTIBOOT_HEADER_TAG_EFI_BS 7
#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS_EFI32 8
#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS_EFI64 9
#define MULTIBOOT_HEADER_TAG_RELOCATABLE 10
#define MULTIBOOT_ARCHITECTURE_I386 0
#define MULTIBOOT_ARCHITECTURE_MIPS32 4
#define MULTIBOOT_HEADER_TAG_OPTIONAL 1
#define MULTIBOOT_LOAD_PREFERENCE_NONE 0
#define MULTIBOOT_LOAD_PREFERENCE_LOW 1
#define MULTIBOOT_LOAD_PREFERENCE_HIGH 2
#define MULTIBOOT_CONSOLE_FLAGS_CONSOLE_REQUIRED 1
#define MULTIBOOT_CONSOLE_FLAGS_EGA_TEXT_SUPPORTED 2
#ifndef ASM_FILE
typedef unsigned char multiboot_uint8_t;
typedef unsigned short multiboot_uint16_t;
typedef unsigned int multiboot_uint32_t;
typedef unsigned long long multiboot_uint64_t;
struct multiboot_header
{
/* Must be MULTIBOOT_MAGIC - see above. */
multiboot_uint32_t magic;
/* ISA */
multiboot_uint32_t architecture;
/* Total header length. */
multiboot_uint32_t header_length;
/* The above fields plus this one must equal 0 mod 2^32. */
multiboot_uint32_t checksum;
};
struct multiboot_header_tag
{
multiboot_uint16_t type;
multiboot_uint16_t flags;
multiboot_uint32_t size;
};
struct multiboot_header_tag_information_request
{
multiboot_uint16_t type;
multiboot_uint16_t flags;
multiboot_uint32_t size;
multiboot_uint32_t requests[0];
};
struct multiboot_header_tag_address
{
multiboot_uint16_t type;
multiboot_uint16_t flags;
multiboot_uint32_t size;
multiboot_uint32_t header_addr;
multiboot_uint32_t load_addr;
multiboot_uint32_t load_end_addr;
multiboot_uint32_t bss_end_addr;
};
struct multiboot_header_tag_entry_address
{
multiboot_uint16_t type;
multiboot_uint16_t flags;
multiboot_uint32_t size;
multiboot_uint32_t entry_addr;
};
struct multiboot_header_tag_console_flags
{
multiboot_uint16_t type;
multiboot_uint16_t flags;
multiboot_uint32_t size;
multiboot_uint32_t console_flags;
};
struct multiboot_header_tag_framebuffer
{
multiboot_uint16_t type;
multiboot_uint16_t flags;
multiboot_uint32_t size;
multiboot_uint32_t width;
multiboot_uint32_t height;
multiboot_uint32_t depth;
};
struct multiboot_header_tag_module_align
{
multiboot_uint16_t type;
multiboot_uint16_t flags;
multiboot_uint32_t size;
};
struct multiboot_header_tag_relocatable
{
multiboot_uint16_t type;
multiboot_uint16_t flags;
multiboot_uint32_t size;
multiboot_uint32_t min_addr;
multiboot_uint32_t max_addr;
multiboot_uint32_t align;
multiboot_uint32_t preference;
};
struct multiboot_color
{
multiboot_uint8_t red;
multiboot_uint8_t green;
multiboot_uint8_t blue;
};
struct multiboot_mmap_entry
{
multiboot_uint64_t addr;
multiboot_uint64_t len;
#define MULTIBOOT_MEMORY_AVAILABLE 1
#define MULTIBOOT_MEMORY_RESERVED 2
#define MULTIBOOT_MEMORY_ACPI_RECLAIMABLE 3
#define MULTIBOOT_MEMORY_NVS 4
#define MULTIBOOT_MEMORY_BADRAM 5
multiboot_uint32_t type;
multiboot_uint32_t zero;
};
typedef struct multiboot_mmap_entry multiboot_memory_map_t;
struct multiboot_tag
{
multiboot_uint32_t type;
multiboot_uint32_t size;
};
struct multiboot_tag_string
{
multiboot_uint32_t type;
multiboot_uint32_t size;
char string[0];
};
struct multiboot_tag_module
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint32_t mod_start;
multiboot_uint32_t mod_end;
char cmdline[0];
};
struct multiboot_tag_basic_meminfo
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint32_t mem_lower;
multiboot_uint32_t mem_upper;
};
struct multiboot_tag_bootdev
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint32_t biosdev;
multiboot_uint32_t slice;
multiboot_uint32_t part;
};
struct multiboot_tag_mmap
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint32_t entry_size;
multiboot_uint32_t entry_version;
struct multiboot_mmap_entry entries[0];
};
struct multiboot_vbe_info_block
{
multiboot_uint8_t external_specification[512];
};
struct multiboot_vbe_mode_info_block
{
multiboot_uint8_t external_specification[256];
};
struct multiboot_tag_vbe
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint16_t vbe_mode;
multiboot_uint16_t vbe_interface_seg;
multiboot_uint16_t vbe_interface_off;
multiboot_uint16_t vbe_interface_len;
struct multiboot_vbe_info_block vbe_control_info;
struct multiboot_vbe_mode_info_block vbe_mode_info;
};
struct multiboot_tag_framebuffer_common
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint64_t framebuffer_addr;
multiboot_uint32_t framebuffer_pitch;
multiboot_uint32_t framebuffer_width;
multiboot_uint32_t framebuffer_height;
multiboot_uint8_t framebuffer_bpp;
#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0
#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1
#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2
multiboot_uint8_t framebuffer_type;
multiboot_uint16_t reserved;
};
struct multiboot_tag_framebuffer
{
struct multiboot_tag_framebuffer_common common;
union
{
struct
{
multiboot_uint16_t framebuffer_palette_num_colors;
struct multiboot_color framebuffer_palette[0];
};
struct
{
multiboot_uint8_t framebuffer_red_field_position;
multiboot_uint8_t framebuffer_red_mask_size;
multiboot_uint8_t framebuffer_green_field_position;
multiboot_uint8_t framebuffer_green_mask_size;
multiboot_uint8_t framebuffer_blue_field_position;
multiboot_uint8_t framebuffer_blue_mask_size;
};
};
};
struct multiboot_tag_elf_sections
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint32_t num;
multiboot_uint32_t entsize;
multiboot_uint32_t shndx;
char sections[0];
};
struct multiboot_tag_apm
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint16_t version;
multiboot_uint16_t cseg;
multiboot_uint32_t offset;
multiboot_uint16_t cseg_16;
multiboot_uint16_t dseg;
multiboot_uint16_t flags;
multiboot_uint16_t cseg_len;
multiboot_uint16_t cseg_16_len;
multiboot_uint16_t dseg_len;
};
struct multiboot_tag_efi32
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint32_t pointer;
};
struct multiboot_tag_efi64
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint64_t pointer;
};
struct multiboot_tag_smbios
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint8_t major;
multiboot_uint8_t minor;
multiboot_uint8_t reserved[6];
multiboot_uint8_t tables[0];
};
struct multiboot_tag_old_acpi
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint8_t rsdp[0];
};
struct multiboot_tag_new_acpi
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint8_t rsdp[0];
};
struct multiboot_tag_network
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint8_t dhcpack[0];
};
struct multiboot_tag_efi_mmap
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint32_t descr_size;
multiboot_uint32_t descr_vers;
multiboot_uint8_t efi_mmap[0];
};
struct multiboot_tag_efi32_ih
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint32_t pointer;
};
struct multiboot_tag_efi64_ih
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint64_t pointer;
};
struct multiboot_tag_load_base_addr
{
multiboot_uint32_t type;
multiboot_uint32_t size;
multiboot_uint32_t load_base_addr;
};
#endif /* ! ASM_FILE */
#endif /* ! MULTIBOOT_HEADER */

194
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/**
* @author (c) Eyal Rozenberg <eyalroz1@gmx.com>
* 2021-2022, Haifa, Palestine/Israel
* @author (c) Marco Paland (info@paland.com)
* 2014-2019, PALANDesign Hannover, Germany
*
* @note Others have made smaller contributions to this file: see the
* contributors page at https://github.com/eyalroz/printf/graphs/contributors
* or ask one of the authors.
*
* @brief Small stand-alone implementation of the printf family of functions
* (`(v)printf`, `(v)s(n)printf` etc., geared towards use on embedded systems with
* a very limited resources.
*
* @note the implementations are thread-safe; re-entrant; use no functions from
* the standard library; and do not dynamically allocate any memory.
*
* @license The MIT License (MIT)
*
* 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 PRINTF_H_
#define PRINTF_H_
#include <types.h>
#ifdef __cplusplus
extern "C"
{
#endif
#ifdef __GNUC__
#define ATTR_PRINTF(one_based_format_index, first_arg) \
__attribute__((format(__printf__, (one_based_format_index), (first_arg))))
#define ATTR_VPRINTF(one_based_format_index) ATTR_PRINTF((one_based_format_index), 0)
#else
#define ATTR_PRINTF((one_based_format_index), (first_arg))
#define ATTR_VPRINTF(one_based_format_index)
#endif
#ifndef PRINTF_ALIAS_STANDARD_FUNCTION_NAMES
#define PRINTF_ALIAS_STANDARD_FUNCTION_NAMES 0
#endif
#if PRINTF_ALIAS_STANDARD_FUNCTION_NAMES
#define printf printf
#define sprintf sprintf
#define vsprintf vsprintf
#define snprintf_ snprintf
#define vsnprintf vsnprintf
#define vprintf vprintf
#endif
// If you want to include this implementation file directly rather than
// link against, this will let you control the functions' visibility,
// e.g. make them static so as not to clash with other objects also
// using them.
#ifndef PRINTF_VISIBILITY
#define PRINTF_VISIBILITY
#endif
/**
* Prints/send a single character to some opaque output entity
*
* @note This function is not implemented by the library, only declared; you must provide an
* implementation if you wish to use the @ref printf / @ref vprintf function (and possibly
* for linking against the library, if your toolchain does not support discarding unused functions)
*
* @note The output could be as simple as a wrapper for the `write()` system call on a Unix-like
* system, or even libc's @ref putchar , for replicating actual functionality of libc's @ref printf
* function; but on an embedded system it may involve interaction with a special output device,
* like a UART, etc.
*
* @note in libc's @ref putchar, the parameter type is an int; this was intended to support the
* representation of either a proper character or EOF in a variable - but this is really not
* meaningful to pass into @ref putchar and is discouraged today. See further discussion in:
* @link https://stackoverflow.com/q/17452847/1593077
*
* @param c the single character to print
*/
// PRINTF_VISIBILITY
// void putchar(char c);
/**
* An implementation of the C standard's printf/vprintf
*
* @note you must implement a @ref putchar_ function for using this function - it invokes @ref putchar_
* rather than directly performing any I/O (which insulates it from any dependence on the operating system
* and external libraries).
*
* @param format A string specifying the format of the output, with %-marked specifiers of how to interpret
* additional arguments.
* @param arg Additional arguments to the function, one for each %-specifier in @p format string
* @return The number of characters written into @p s, not counting the terminating null character
*/
///@{
PRINTF_VISIBILITY
int printf(const char *format, ...) ATTR_PRINTF(1, 2);
PRINTF_VISIBILITY
int vprintf(const char *format, va_list arg) ATTR_VPRINTF(1);
///@}
/**
* An implementation of the C standard's sprintf/vsprintf
*
* @note For security considerations (the potential for exceeding the buffer bounds), please consider using
* the size-constrained variant, @ref snprintf / @ref vsnprintf , instead.
*
* @param s An array in which to store the formatted string. It must be large enough to fit the formatted
* output!
* @param format A string specifying the format of the output, with %-marked specifiers of how to interpret
* additional arguments.
* @param arg Additional arguments to the function, one for each specifier in @p format
* @return The number of characters written into @p s, not counting the terminating null character
*/
///@{
PRINTF_VISIBILITY
int sprintf(char *s, const char *format, ...) ATTR_PRINTF(2, 3);
PRINTF_VISIBILITY
int vsprintf(char *s, const char *format, va_list arg) ATTR_VPRINTF(2);
///@}
/**
* An implementation of the C standard's snprintf/vsnprintf
*
* @param s An array in which to store the formatted string. It must be large enough to fit either the
* entire formatted output, or at least @p n characters. Alternatively, it can be NULL, in which case
* nothing will be printed, and only the number of characters which _could_ have been printed is
* tallied and returned.
* @param n The maximum number of characters to write to the array, including a terminating null character
* @param format A string specifying the format of the output, with %-marked specifiers of how to interpret
* additional arguments.
* @param arg Additional arguments to the function, one for each specifier in @p format
* @return The number of characters that COULD have been written into @p s, not counting the terminating
* null character. A value equal or larger than @p n indicates truncation. Only when the returned value
* is non-negative and less than @p n, the null-terminated string has been fully and successfully printed.
*/
///@{
PRINTF_VISIBILITY
int snprintf(char *s, size_t count, const char *format, ...) ATTR_PRINTF(3, 4);
PRINTF_VISIBILITY
int vsnprintf(char *s, size_t count, const char *format, va_list arg) ATTR_VPRINTF(3);
///@}
/**
* printf/vprintf with user-specified output function
*
* An alternative to @ref printf, in which the output function is specified dynamically
* (rather than @ref putchar_ being used)
*
* @param out An output function which takes one character and a type-erased additional parameters
* @param extra_arg The type-erased argument to pass to the output function @p out with each call
* @param format A string specifying the format of the output, with %-marked specifiers of how to interpret
* additional arguments.
* @param arg Additional arguments to the function, one for each specifier in @p format
* @return The number of characters for which the output f unction was invoked, not counting the terminating null character
*
*/
PRINTF_VISIBILITY
int fctprintf(void (*out)(char c, void *extra_arg), void *extra_arg, const char *format, ...) ATTR_PRINTF(3, 4);
PRINTF_VISIBILITY
int vfctprintf(void (*out)(char c, void *extra_arg), void *extra_arg, const char *format, va_list arg) ATTR_VPRINTF(3);
#if PRINTF_ALIAS_STANDARD_FUNCTION_NAMES
#undef printf
#undef sprintf
#undef vsprintf
#undef snprintf_
#undef vsnprintf
#undef vprintf
#endif
#ifdef __cplusplus
}
#endif
#endif // PRINTF_H_

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#ifndef __FENNIX_KERNEL_TYPES_H__
#define __FENNIX_KERNEL_TYPES_H__
#ifdef __cplusplus
#define EXTERNC extern "C"
#define START_EXTERNC \
EXTERNC \
{
#define END_EXTERNC \
}
#else // __cplusplus
#define EXTERNC
#define START_EXTERNC
#define END_EXTERNC
#endif // __cplusplus
#ifdef __cplusplus
#define NULL 0
#else // __cplusplus
#define NULL ((void *)0)
#define bool _Bool
#endif // __cplusplus
#define asm __asm__
#define asmv __asm__ volatile
#define true 1
#define false 0
#define inf_loop while (1)
#define ilp inf_loop; /* Used for debugging */
#ifdef __cplusplus
#define foreach for
#define in :
#define r_cst(t, v) reinterpret_cast<t>(v)
#define c_cst(t, v) const_cast<t>(v)
#define s_cst(t, v) static_cast<t>(v)
#define d_cst(t, v) dynamic_cast<t>(v)
#endif // __cplusplus
#define UNUSED(x) (void)(x)
#define CONCAT(x, y) x##y
#ifndef __cplusplus /* This conflicts with std */
#define toupper(c) ((c)-0x20 * (((c) >= 'a') && ((c) <= 'z')))
#define tolower(c) ((c) + 0x20 * (((c) >= 'A') && ((c) <= 'Z')))
#endif
#ifndef __va_list__
typedef __builtin_va_list va_list;
#endif
#define va_start(v, l) __builtin_va_start(v, l)
#define va_end(v) __builtin_va_end(v)
#define va_arg(v, l) __builtin_va_arg(v, l)
#define ALIGN_UP(x, align) ((__typeof__(x))(((uintptr_t)(x) + ((align)-1)) & (~((align)-1))))
#define ALIGN_DOWN(x, align) ((__typeof__(x))((x) & (~((align)-1))))
#define offsetof(type, member) __builtin_offsetof(type, member)
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
#define VPOKE(type, address) (*((volatile type *)(address)))
#define POKE(type, address) (*((type *)(address)))
#ifndef __cplusplus
#ifdef __STDC__
#ifdef __STDC_VERSION__
#if (__STDC_VERSION__ >= 201710L)
#define C_LANGUAGE_STANDARD 2018
#elif (__STDC_VERSION__ >= 201112L)
#define C_LANGUAGE_STANDARD 2011
#elif (__STDC_VERSION__ >= 199901L)
#define C_LANGUAGE_STANDARD 1999
#elif (__STDC_VERSION__ >= 199409L)
#define C_LANGUAGE_STANDARD 1995
#endif
#else
#define C_LANGUAGE_STANDARD 1990
#endif
#else
#define C_LANGUAGE_STANDARD 1972
#endif
#else
#ifdef __STDC__
#ifdef __cplusplus
#if (__cplusplus >= 202100L)
#define CPP_LANGUAGE_STANDARD 2023
#elif (__cplusplus >= 202002L)
#define CPP_LANGUAGE_STANDARD 2020
#elif (__cplusplus >= 201703L)
#define CPP_LANGUAGE_STANDARD 2017
#elif (__cplusplus >= 201402L)
#define CPP_LANGUAGE_STANDARD 2014
#elif (__cplusplus >= 201103L)
#define CPP_LANGUAGE_STANDARD 2011
#elif (__cplusplus >= 199711L)
#define CPP_LANGUAGE_STANDARD 1998
#endif
#else
#define CPP_LANGUAGE_STANDARD __cplusplus
#endif
#else
#define CPP_LANGUAGE_STANDARD __cplusplus
#endif
#endif // __cplusplus
#ifndef __SIG_ATOMIC_TYPE__
#define __SIG_ATOMIC_TYPE__ int
#endif
typedef __INT8_TYPE__ int8_t;
typedef __INT16_TYPE__ int16_t;
typedef __INT32_TYPE__ int32_t;
typedef __INT64_TYPE__ int64_t;
typedef __UINT8_TYPE__ uint8_t;
typedef __UINT16_TYPE__ uint16_t;
typedef __UINT32_TYPE__ uint32_t;
typedef __UINT64_TYPE__ uint64_t;
typedef __INT_LEAST8_TYPE__ int_least8_t;
typedef __INT_LEAST16_TYPE__ int_least16_t;
typedef __INT_LEAST32_TYPE__ int_least32_t;
typedef __INT_LEAST64_TYPE__ int_least64_t;
typedef __UINT_LEAST8_TYPE__ uint_least8_t;
typedef __UINT_LEAST16_TYPE__ uint_least16_t;
typedef __UINT_LEAST32_TYPE__ uint_least32_t;
typedef __UINT_LEAST64_TYPE__ uint_least64_t;
typedef __INT_FAST8_TYPE__ int_fast8_t;
typedef __INT_FAST16_TYPE__ int_fast16_t;
typedef __INT_FAST32_TYPE__ int_fast32_t;
typedef __INT_FAST64_TYPE__ int_fast64_t;
typedef __UINT_FAST8_TYPE__ uint_fast8_t;
typedef __UINT_FAST16_TYPE__ uint_fast16_t;
typedef __UINT_FAST32_TYPE__ uint_fast32_t;
typedef __UINT_FAST64_TYPE__ uint_fast64_t;
typedef __INTPTR_TYPE__ intptr_t;
typedef __UINTPTR_TYPE__ uintptr_t;
typedef __INTMAX_TYPE__ intmax_t;
typedef __UINTMAX_TYPE__ uintmax_t;
typedef __PTRDIFF_TYPE__ ptrdiff_t;
typedef __SIZE_TYPE__ size_t;
#ifndef __cplusplus
typedef __WCHAR_TYPE__ wchar_t;
#endif
typedef __WINT_TYPE__ wint_t;
typedef __SIG_ATOMIC_TYPE__ sig_atomic_t;
// TODO: ssize_t
typedef intptr_t ssize_t;
#define INT8_MAX __INT8_MAX__
#define INT8_MIN (-INT8_MAX - 1)
#define UINT8_MAX __UINT8_MAX__
#define INT16_MAX __INT16_MAX__
#define INT16_MIN (-INT16_MAX - 1)
#define UINT16_MAX __UINT16_MAX__
#define INT32_MAX __INT32_MAX__
#define INT32_MIN (-INT32_MAX - 1)
#define UINT32_MAX __UINT32_MAX__
#define INT64_MAX __INT64_MAX__
#define INT64_MIN (-INT64_MAX - 1)
#define UINT64_MAX __UINT64_MAX__
#define INT_LEAST8_MAX __INT_LEAST8_MAX__
#define INT_LEAST8_MIN (-INT_LEAST8_MAX - 1)
#define UINT_LEAST8_MAX __UINT_LEAST8_MAX__
#define INT_LEAST16_MAX __INT_LEAST16_MAX__
#define INT_LEAST16_MIN (-INT_LEAST16_MAX - 1)
#define UINT_LEAST16_MAX __UINT_LEAST16_MAX__
#define INT_LEAST32_MAX __INT_LEAST32_MAX__
#define INT_LEAST32_MIN (-INT_LEAST32_MAX - 1)
#define UINT_LEAST32_MAX __UINT_LEAST32_MAX__
#define INT_LEAST64_MAX __INT_LEAST64_MAX__
#define INT_LEAST64_MIN (-INT_LEAST64_MAX - 1)
#define UINT_LEAST64_MAX __UINT_LEAST64_MAX__
#define INT_FAST8_MAX __INT_FAST8_MAX__
#define INT_FAST8_MIN (-INT_FAST8_MAX - 1)
#define UINT_FAST8_MAX __UINT_FAST8_MAX__
#define INT_FAST16_MAX __INT_FAST16_MAX__
#define INT_FAST16_MIN (-INT_FAST16_MAX - 1)
#define UINT_FAST16_MAX __UINT_FAST16_MAX__
#define INT_FAST32_MAX __INT_FAST32_MAX__
#define INT_FAST32_MIN (-INT_FAST32_MAX - 1)
#define UINT_FAST32_MAX __UINT_FAST32_MAX__
#define INT_FAST64_MAX __INT_FAST64_MAX__
#define INT_FAST64_MIN (-INT_FAST64_MAX - 1)
#define UINT_FAST64_MAX __UINT_FAST64_MAX__
#define INTPTR_MAX __INTPTR_MAX__
#define INTPTR_MIN (-INTPTR_MAX - 1)
#define UINTPTR_MAX __UINTPTR_MAX__
#define INTMAX_MAX __INTMAX_MAX__
#define INTMAX_MIN (-INTMAX_MAX - 1)
#define UINTMAX_MAX __UINTMAX_MAX__
#define PTRDIFF_MAX __PTRDIFF_MAX__
#define PTRDIFF_MIN (-PTRDIFF_MAX - 1)
#define SIG_ATOMIC_MAX __SIG_ATOMIC_MAX__
#define SIG_ATOMIC_MIN __SIG_ATOMIC_MIN__
#define SIZE_MAX __SIZE_MAX__
#define WCHAR_MAX __WCHAR_MAX__
#define WCHAR_MIN __WCHAR_MIN__
#define WINT_MAX __WINT_MAX__
#define WINT_MIN __WINT_MIN__
#define BREAK __asm__ __volatile__("int $0x3" \
: \
: \
: "memory");
#ifdef __INT48_TYPE__
typedef __INT48_TYPE__ int48_t;
typedef __UINT48_TYPE__ uint48_t;
typedef int48_t int_least48_t;
typedef uint48_t uint_least48_t;
typedef int48_t int_fast48_t;
typedef uint48_t uint_fast48_t;
#else // __INT48_TYPE__
typedef __INT64_TYPE__ int48_t;
typedef __UINT64_TYPE__ uint48_t;
typedef int48_t int_least48_t;
typedef uint48_t uint_least48_t;
typedef int48_t int_fast48_t;
typedef uint48_t uint_fast48_t;
#endif // __INT48_TYPE__
#define b4(x) ((x & 0x0F) << 4 | (x & 0xF0) >> 4)
#define b8(x) ((x)&0xFF)
#define b16(x) __builtin_bswap16(x)
#define b32(x) __builtin_bswap32(x)
#define b48(x) (((((x)&0x0000000000ff) << 40) | \
(((x)&0x00000000ff00) << 24) | \
(((x)&0x000000ff0000) << 8) | \
(((x)&0x0000ff000000) >> 8) | \
(((x)&0x00ff00000000) >> 24) | \
(((x)&0xff0000000000) >> 40)))
#define b64(x) __builtin_bswap64(x)
/* https://gcc.gnu.org/onlinedocs/gcc-9.5.0/gnat_ugn/Optimization-Levels.html */
/** @brief No optimization (the default); generates unoptimized code but has the fastest compilation time. */
#define O0 __attribute__((optimize("O0")))
/** @brief Moderate optimization; optimizes reasonably well but does not degrade compilation time significantly. */
#define O1 __attribute__((optimize("O1")))
/** @brief Full optimization; generates highly optimized code and has the slowest compilation time. */
#define O2 __attribute__((optimize("O2")))
/** @brief Full optimization as in -O2; also uses more aggressive automatic inlining of subprograms within a unit (Inlining of Subprograms) and attempts to vectorize loops. */
#define O3 __attribute__((optimize("O3")))
/** @brief Optimize space usage (code and data) of resulting program. */
#define Os __attribute__((optimize("Os")))
/** @brief Disregard strict standards compliance. -Ofast enables all -O3 optimizations. It also enables optimizations that are not valid for all standard-compliant programs. */
#define Ofast __attribute__((optimize("Ofast")))
#define __unused __attribute__((unused))
#define __packed __attribute__((packed))
#define __naked __attribute__((naked))
#define __aligned(x) __attribute__((aligned(x)))
#define __section(x) __attribute__((section(x)))
#define __noreturn __attribute__((noreturn))
#define __weak __attribute__((weak))
#define __alias(x) __attribute__((alias(x)))
#define __always_inline __attribute__((always_inline))
#define __noinline __attribute__((noinline))
#define __pure __attribute__((pure))
#define __const __attribute__((const))
#define __malloc __attribute__((malloc))
#define __returns_twice __attribute__((returns_twice))
#define __used __attribute__((used))
#define __deprecated __attribute__((deprecated))
#define __deprecated_msg(x) __attribute__((deprecated(x)))
#define __weakref(x) __attribute__((weakref(x)))
#define __weakrefalias(x) __attribute__((weakref(#x)))
#define __visibility(x) __attribute__((visibility(x)))
#define __constructor __attribute__((constructor))
#define __destructor __attribute__((destructor))
#define __cleanup(x) __attribute__((cleanup(x)))
#define __fallthrough __attribute__((fallthrough))
#define __nonnull(x) __attribute__((nonnull x))
#define __nonnull_all __attribute__((nonnull))
#define __returns_nonnull __attribute__((returns_nonnull))
#define __sentinel __attribute__((sentinel))
#define __sentinel_all __attribute__((sentinel(0)))
#define __format(x, y, z) __attribute__((format(x, y, z)))
#define __format_arg(x) __attribute__((format_arg(x)))
#define __nonnull_params(x) __attribute__((nonnull x))
#define __nonnull_all __attribute__((nonnull))
#define __warn_unused_result __attribute__((warn_unused_result))
#define __no_stack_protector __attribute__((no_stack_protector))
#define __no_instrument_function __attribute__((no_instrument_function))
#define __no_debug __attribute__((no_debug))
#define __target(x) __attribute__((target(x)))
#define __min_vector_width(x) __attribute__((min_vector_width(x)))
// sanitizer
#define __no_sanitize_address __attribute__((no_sanitize_address))
#define __no_sanitize_undefined __attribute__((no_sanitize_undefined))
#define __no_address_safety_analysis __attribute__((no_address_safety_analysis))
#define __no_sanitize_thread __attribute__((no_sanitize_thread))
#define __synchronize __sync_synchronize()
#define __sync __synchronize
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
#define SafeFunction __no_stack_protector __no_sanitize_address __no_sanitize_undefined __no_address_safety_analysis __no_sanitize_thread
#define NIF __no_instrument_function
#define int1 \
__asm__ __volatile__("int $0x1" \
: \
: \
: "memory")
#define int3 \
__asm__ __volatile__("int3" \
: \
: \
: "memory")
#endif // !__FENNIX_KERNEL_TYPES_H__

34
FennixLoader/include/uart.hpp Normal file
View File

@@ -0,0 +1,34 @@
#ifndef __FENNIX_KERNEL_UART_H__
#define __FENNIX_KERNEL_UART_H__
#include <types.h>
namespace UniversalAsynchronousReceiverTransmitter
{
enum SerialPorts
{
COMNULL = 0,
COM1 = 0x3F8,
COM2 = 0x2F8,
COM3 = 0x3E8,
COM4 = 0x2E8,
COM5 = 0x5F8,
COM6 = 0x4F8,
COM7 = 0x5E8,
COM8 = 0x4E8
};
class UART
{
private:
SerialPorts Port;
public:
UART(SerialPorts Port = COMNULL);
~UART();
void Write(uint8_t Char);
uint8_t Read();
};
}
#endif // !__FENNIX_KERNEL_UART_H__