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Updated kernel (tl;dr: improved filesystem, tasking, loading files, etc..)

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This commit is contained in:
Alex
2023-02-06 19:35:44 +02:00
parent 640f6a412a
commit a592b85ce5
46 changed files with 3503 additions and 2412 deletions
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54
include/elf.h
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@ -8,7 +8,7 @@
/* 32-bit ELF base types. */
typedef uint32_t Elf32_Addr;
typedef uint64_t Elf32_Half;
typedef uint16_t Elf32_Half;
typedef uint32_t Elf32_Off;
typedef int32_t Elf32_Sword;
typedef uint32_t Elf32_Word;
@ -153,6 +153,13 @@ struct Elf64_Dyn
} 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
@ -184,7 +191,7 @@ enum Elf_OSABI
ELFOSABI_OPENVMS = 13,
ELFOSABI_NSK = 14,
ELFOSABI_AROS = 15,
ELFOSABI_FENIXOS = 16, /* Wait... what? */
ELFOSABI_FENIXOS = 16,
ELFOSABI_CLOUDABI = 17,
ELFOSABI_OPENVOS = 18,
ELFOSABI_C6000_ELFABI = 64,
@ -208,7 +215,28 @@ enum RtT_Types
{
R_386_NONE = 0, // No relocation
R_386_32 = 1, // Symbol + Offset
R_386_PC32 = 2 // Symbol + Offset - Section 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
@ -359,11 +387,13 @@ enum DynamicArrayTags
#define DO_64_64(S, A) ((S) + (A))
#define DO_64_PC32(S, A, P) ((S) + (A) - (P))
#define ELF32_R_SYM(INFO) ((INFO) >> 8)
#define ELF32_R_TYPE(INFO) ((uint8_t)(INFO))
#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(INFO) ((INFO) >> 8)
#define ELF64_R_TYPE(INFO) ((uint8_t)(INFO))
#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
@ -374,10 +404,12 @@ enum DynamicArrayTags
#define SHF_WRITE 0x1
#define SHF_ALLOC 0x2
#define EM_386 (3) // x86 Machine Type
#define EM_AMD64 (0x3E) // 64bit
#define EM_AARCH64 (0xb7) // ARM64
#define EV_CURRENT (1) // ELF Current Version
#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]