diff options
Diffstat (limited to 'qemu/roms/SLOF/lib/libelf/elf32.c')
| -rw-r--r-- | qemu/roms/SLOF/lib/libelf/elf32.c | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/qemu/roms/SLOF/lib/libelf/elf32.c b/qemu/roms/SLOF/lib/libelf/elf32.c deleted file mode 100644 index fea5cf420..000000000 --- a/qemu/roms/SLOF/lib/libelf/elf32.c +++ /dev/null @@ -1,193 +0,0 @@ -/****************************************************************************** - * Copyright (c) 2004, 2011 IBM Corporation - * All rights reserved. - * This program and the accompanying materials - * are made available under the terms of the BSD License - * which accompanies this distribution, and is available at - * http://www.opensource.org/licenses/bsd-license.php - * - * Contributors: - * IBM Corporation - initial implementation - *****************************************************************************/ - -/* - * 32-bit ELF loader - */ -#include <stdio.h> -#include <string.h> -#include <libelf.h> -#include <byteorder.h> - -struct ehdr32 { - uint32_t ei_ident; - uint8_t ei_class; - uint8_t ei_data; - uint8_t ei_version; - uint8_t ei_pad[9]; - uint16_t e_type; - uint16_t e_machine; - uint32_t e_version; - uint32_t e_entry; - uint32_t e_phoff; - uint32_t e_shoff; - uint32_t e_flags; - uint16_t e_ehsize; - uint16_t e_phentsize; - uint16_t e_phnum; - uint16_t e_shentsize; - uint16_t e_shnum; - uint16_t e_shstrndx; -}; - -struct phdr32 { - uint32_t p_type; - uint32_t p_offset; - uint32_t p_vaddr; - uint32_t p_paddr; - uint32_t p_filesz; - uint32_t p_memsz; - uint32_t p_flags; - uint32_t p_align; -}; - - -static struct phdr32* -get_phdr32(void *file_addr) -{ - return (struct phdr32 *) (((unsigned char *)file_addr) - + ((struct ehdr32 *)file_addr)->e_phoff); -} - -static void -load_segment(void *file_addr, struct phdr32 *phdr, signed long offset, - int (*pre_load)(void*, long), - void (*post_load)(void*, long)) -{ - unsigned long src = phdr->p_offset + (unsigned long) file_addr; - unsigned long destaddr; - - destaddr = (unsigned long)phdr->p_paddr; - destaddr = destaddr + offset; - - /* check if we're allowed to copy */ - if (pre_load != NULL) { - if (pre_load((void*)destaddr, phdr->p_memsz) != 0) - return; - } - - /* copy into storage */ - memmove((void *)destaddr, (void *)src, phdr->p_filesz); - - /* clear bss */ - memset((void *)(destaddr + phdr->p_filesz), 0, - phdr->p_memsz - phdr->p_filesz); - - if (phdr->p_memsz && post_load) { - post_load((void*)destaddr, phdr->p_memsz); - } -} - -unsigned int -elf_load_segments32(void *file_addr, signed long offset, - int (*pre_load)(void*, long), - void (*post_load)(void*, long)) -{ - struct ehdr32 *ehdr = (struct ehdr32 *) file_addr; - /* Calculate program header address */ - struct phdr32 *phdr = get_phdr32(file_addr); - int i; - - /* loop e_phnum times */ - for (i = 0; i <= ehdr->e_phnum; i++) { - /* PT_LOAD ? */ - if (phdr->p_type == 1) { - if (phdr->p_paddr != phdr->p_vaddr) { - printf("ELF32: VirtAddr(%lx) != PhysAddr(%lx) not supported, aborting\n", - (long)phdr->p_vaddr, (long)phdr->p_paddr); - return 0; - } - - /* copy segment */ - load_segment(file_addr, phdr, offset, pre_load, - post_load); - } - /* step to next header */ - phdr = (struct phdr32 *)(((uint8_t *)phdr) + ehdr->e_phentsize); - } - - /* Entry point is always a virtual address, so translate it - * to physical before returning it */ - return ehdr->e_entry; -} - -/** - * Return the base address for loading (i.e. the address of the first PT_LOAD - * segment) - * @param file_addr pointer to the ELF file in memory - * @return the base address - */ -long -elf_get_base_addr32(void *file_addr) -{ - struct ehdr32 *ehdr = (struct ehdr32 *) file_addr; - struct phdr32 *phdr = get_phdr32(file_addr); - int i; - - /* loop e_phnum times */ - for (i = 0; i <= ehdr->e_phnum; i++) { - /* PT_LOAD ? */ - if (phdr->p_type == 1) { - return phdr->p_paddr; - } - /* step to next header */ - phdr = (struct phdr32 *)(((uint8_t *)phdr) + ehdr->e_phentsize); - } - - return 0; -} - -uint32_t elf_get_eflags_32(void *file_addr) -{ - struct ehdr32 *ehdr = (struct ehdr32 *) file_addr; - - return ehdr->e_flags; -} - -void -elf_byteswap_header32(void *file_addr) -{ - struct ehdr32 *ehdr = (struct ehdr32 *) file_addr; - struct phdr32 *phdr; - int i; - - bswap_16p(&ehdr->e_type); - bswap_16p(&ehdr->e_machine); - bswap_32p(&ehdr->e_version); - bswap_32p(&ehdr->e_entry); - bswap_32p(&ehdr->e_phoff); - bswap_32p(&ehdr->e_shoff); - bswap_32p(&ehdr->e_flags); - bswap_16p(&ehdr->e_ehsize); - bswap_16p(&ehdr->e_phentsize); - bswap_16p(&ehdr->e_phnum); - bswap_16p(&ehdr->e_shentsize); - bswap_16p(&ehdr->e_shnum); - bswap_16p(&ehdr->e_shstrndx); - - phdr = get_phdr32(file_addr); - - /* loop e_phnum times */ - for (i = 0; i <= ehdr->e_phnum; i++) { - bswap_32p(&phdr->p_type); - bswap_32p(&phdr->p_offset); - bswap_32p(&phdr->p_vaddr); - bswap_32p(&phdr->p_paddr); - bswap_32p(&phdr->p_filesz); - bswap_32p(&phdr->p_memsz); - bswap_32p(&phdr->p_flags); - bswap_32p(&phdr->p_align); - - /* step to next header */ - phdr = (struct phdr32 *)(((uint8_t *)phdr) + ehdr->e_phentsize); - } -} |