From f79ada76d2e4056ff5a81b53998d6d2696523d0f Mon Sep 17 00:00:00 2001 From: Marvin Borner Date: Wed, 1 Apr 2020 22:31:45 +0200 Subject: Some work on the elf loader --- src/kernel/fs/elfloader.c | 61 ----------------------------------------------- 1 file changed, 61 deletions(-) delete mode 100644 src/kernel/fs/elfloader.c (limited to 'src/kernel/fs/elfloader.c') diff --git a/src/kernel/fs/elfloader.c b/src/kernel/fs/elfloader.c deleted file mode 100644 index fa537f6..0000000 --- a/src/kernel/fs/elfloader.c +++ /dev/null @@ -1,61 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include "load.h" - -int elf_probe(uint8_t *buf) -{ - elf_header_t *header = (elf_header_t *)buf; - if (header->ident[0] == 0x7f && header->ident[1] == 'E' && header->ident[2] == 'L' && - header->ident[3] == 'F') { - serial_printf("Buffer is valid ELF file!"); - return 1; - } - return 0; -} - -uint8_t elf_start(uint8_t *buf) -{ - elf_header_t *header = (elf_header_t *)buf; - serial_printf("Type: %s%s%s", header->ident[4] == 1 ? "32bit " : "64 bit", - header->ident[5] == 1 ? "Little Endian " : "Big endian ", - header->ident[6] == 1 ? "True ELF " : "buggy ELF "); - if (header->type != 2) { - serial_printf("File is not executable!"); - return 0; - } - - uint32_t phys_loc = loader_get_unused_load_location(); - elf_program_header_t *ph = (elf_program_header_t *)(buf + header->phoff); - for (int i = 0; i < header->phnum; i++, ph++) { - switch (ph->type) { - case 0: - break; - case 1: - serial_printf( - "LOAD: offset 0x%x vaddr 0x%x paddr 0x%x filesz 0x%x memsz 0x%x", - ph->offset, ph->vaddr, ph->paddr, ph->filesz, ph->memsz); - paging_map(phys_loc, ph->vaddr, PT_PRESENT | PT_RW | PT_USED); - halt_loop(); - memcpy((void *)ph->vaddr, buf + ph->offset, ph->filesz); - break; - default: - serial_printf("Unsupported type! Bail out!"); - return 0; - } - } - - return 0; -} - -void elf_init() -{ - loader_t *elfloader = (loader_t *)kmalloc(sizeof(loader_t)); - elfloader->name = "ELF32"; - elfloader->probe = (void *)elf_probe; - elfloader->start = (void *)elf_start; - register_loader(elfloader); -} \ No newline at end of file -- cgit v1.2.3