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Refactored UNIX...

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xolatile
2024-07-18 17:25:38 -04:00
parent 040b89d92d
commit 95e73027ee
3 changed files with 46 additions and 54 deletions
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77
source/unix.c
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@ -1,69 +1,66 @@
#include "assembler.h"
#include "unix.h"
uint8_t elf_main_header_byte [ELF_MAIN_HEADER_SIZE] = {
#include <string.h>
unsigned char elf_main_header_byte[ELF_MAIN_HEADER_SIZE] = {
0X7F, 0X45, 0X4C, 0X46, 0X02, 0X01, 0X01, 0X03,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X02, 0X00, 0X3E, 0X00, 0X01, 0X00, 0X00, 0X00,
0XB0, 0X00, 0X40, 0X00, 0X00, 0X00, 0X00, 0X00, // entry_point
0XB0, 0X00, 0X40, 0X00, 0X00, 0X00, 0X00, 0X00,
0X40, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X00, 0X00, 0X00, 0X40, 0X00, 0X38, 0X00,
0X02, 0X00, 0X40, 0X00, 0X00, 0X00, 0X00, 0X00,
0X02, 0X00, 0X40, 0X00, 0X00, 0X00, 0X00, 0X00
};
uint8_t elf_text_sector_byte [ELF_TEXT_SECTOR_SIZE] = {
unsigned char elf_text_sector_byte[ELF_TEXT_SECTOR_SIZE] = {
0X01, 0X00, 0X00, 0X00, 0X05, 0X00, 0X00, 0X00,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X00, 0X40, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X00, 0X40, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, // HDR + TXT
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, // HDR + TXT
0X00, 0X10, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X10, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00
};
uint8_t elf_data_sector_byte [ELF_DATA_SECTOR_SIZE] = {
unsigned char elf_data_sector_byte[ELF_DATA_SECTOR_SIZE] = {
0X01, 0X00, 0X00, 0X00, 0X06, 0X00, 0X00, 0X00,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, // HDR + TXT
0X00, 0X10, 0X40, 0X00, 0X00, 0X00, 0X00, 0X00, // +++ ^
0X00, 0X10, 0X40, 0X00, 0X00, 0X00, 0X00, 0X00, // +++ ^
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, // DAT
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, // DAT
0X00, 0X10, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X10, 0X40, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X10, 0X40, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X10, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00
};
void elf_main_header (uint8_t has_program,
uint8_t for_linux,
uint8_t for_x86_64) {
//
uint32_t enter = text_entry_point + 0x4000b0u;
void elf_main_header(unsigned char has_program,
unsigned char for_linux,
unsigned char for_x86_64) {
unsigned int enter = text_entry_point + 0x4000b0u;
elf_main_header_byte [16] = (has_program) ? 0x02 : 0x03; // library
elf_main_header_byte [ 7] = (for_linux) ? 0x03 : 0x00; // system v
elf_main_header_byte [18] = (for_x86_64) ? 0x3e : 0x00;
elf_main_header_byte[16] = (has_program) ? 0x02 : 0x03;
elf_main_header_byte[ 7] = (for_linux) ? 0x03 : 0x00;
elf_main_header_byte[18] = (for_x86_64) ? 0x3e : 0x00;
memcpy (& elf_main_header_byte [24], & enter, sizeof (enter));
memcpy (& elf_main_header_byte[24], & enter, sizeof(enter));
}
void elf_text_sector (uint64_t text_size,
uint64_t data_size) {
//
uint64_t text = ELF_HEADER_SIZE + text_size - data_size;
void elf_text_sector(unsigned long text_size, unsigned long data_size) {
unsigned long text = ELF_HEADER_SIZE + text_size - data_size;
memcpy (& elf_text_sector_byte [32], & text, sizeof (text));
memcpy (& elf_text_sector_byte [40], & text, sizeof (text));
memcpy (& elf_text_sector_byte[32], & text, sizeof(text));
memcpy (& elf_text_sector_byte[40], & text, sizeof(text));
}
void elf_data_sector (uint64_t text_size,
uint64_t data_size) {
//
uint64_t data = data_size;
uint64_t core = ELF_HEADER_SIZE + text_size - data_size;
uint64_t move = 0x401000 + core;
void elf_data_sector(unsigned long text_size, unsigned long data_size) {
unsigned long data = data_size;
unsigned long core = ELF_HEADER_SIZE + text_size - data_size;
unsigned long move = 0x401000 + core;
memcpy (& elf_data_sector_byte [ 8], & core, sizeof (core));
memcpy (& elf_data_sector_byte [16], & move, sizeof (move));
memcpy (& elf_data_sector_byte [24], & move, sizeof (move));
memcpy (& elf_data_sector_byte [32], & data, sizeof (data));
memcpy (& elf_data_sector_byte [40], & data, sizeof (data));
memcpy (& elf_data_sector_byte[ 8], & core, sizeof(core));
memcpy (& elf_data_sector_byte[16], & move, sizeof(move));
memcpy (& elf_data_sector_byte[24], & move, sizeof(move));
memcpy (& elf_data_sector_byte[32], & data, sizeof(data));
memcpy (& elf_data_sector_byte[40], & data, sizeof(data));
}