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Normal ELF64 headers without hacks...

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This commit is contained in:
xolatile
2024-07-16 19:42:26 -04:00
parent 5ac9e9a3f9
commit 18a35c1c6d
7 changed files with 138 additions and 38 deletions
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25
source/unix.c
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@ -1,3 +1,4 @@
#include "assembler.h"
#include "unix.h"
uint8_t elf_main_header_byte [ELF_MAIN_HEADER_SIZE] = {
@ -33,23 +34,21 @@ uint8_t elf_data_sector_byte [ELF_DATA_SECTOR_SIZE] = {
void elf_main_header (uint8_t has_program,
uint8_t for_linux,
uint8_t for_x86_64,
uint64_t entry_point) {
/* */
uint64_t enter = entry_point; // TEST
uint8_t for_x86_64) {
//
uint32_t 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;
if (entry_point != 0) {
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 text = ELF_HEADER_SIZE + text_size; // TEST
void elf_text_sector (uint64_t text_size,
uint64_t data_size) {
//
uint64_t 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));
@ -57,9 +56,9 @@ void elf_text_sector (uint64_t text_size) {
void elf_data_sector (uint64_t text_size,
uint64_t data_size) {
/* */
uint64_t data = data_size; // TEST
uint64_t core = ELF_HEADER_SIZE + text_size;
//
uint64_t data = data_size;
uint64_t core = ELF_HEADER_SIZE + text_size - data_size;
uint64_t move = 0x401000 + core;
memcpy (& elf_data_sector_byte [ 8], & core, sizeof (core));