mirror of
https://github.com/wiidev/usbloadergx.git
synced 2024-08-03 07:18:16 +02:00
30535c6f5d
formatted the code to make it easier to read. no functional changes at all.
i didn't put anything from the libwiigui folder or banner folder in the beautifier.
my automated .bat seems to have done a good job. the only places i see it fucked up was on (GXColor){blablabla}. it treated the brackets in the color like all the other brackets and put the color on a new line and indented it. i think i fixed most of them. not sure if it messed up anywhere else. also not sure about how it handled different linebreaks. it looks fine on windows. if it looks messed up on linux, it can be reverted.
the code still compiles and runs fine.
102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
/*
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* Copyright (c) 2001 William L. Pitts
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* Modifications (c) 2004 Felix Domke
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are freely
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* permitted provided that the above copyright notice and this
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* paragraph and the following disclaimer are duplicated in all
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* such forms.
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*
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* This software is provided "AS IS" and without any express or
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* implied warranties, including, without limitation, the implied
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* warranties of merchantability and fitness for a particular
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* purpose.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <gccore.h>
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#include "elf_abi.h"
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/* ======================================================================
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* Determine if a valid ELF image exists at the given memory location.
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* First looks at the ELF header magic field, the makes sure that it is
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* executable and makes sure that it is for a PowerPC.
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* ====================================================================== */
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s32 valid_elf_image (void *addr) {
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Elf32_Ehdr *ehdr; /* Elf header structure pointer */
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ehdr = (Elf32_Ehdr *) addr;
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if (!IS_ELF (*ehdr))
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return 0;
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if (ehdr->e_type != ET_EXEC)
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return -1;
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if (ehdr->e_machine != EM_PPC)
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return -1;
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return 1;
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}
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/* ======================================================================
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* A very simple elf loader, assumes the image is valid, returns the
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* entry point address.
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* ====================================================================== */
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u32 load_elf_image (void *addr) {
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Elf32_Ehdr *ehdr;
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Elf32_Shdr *shdr;
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u8 *strtab = 0;
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u8 *image;
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int i;
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ehdr = (Elf32_Ehdr *) addr;
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/* Find the section header string table for output info */
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shdr = (Elf32_Shdr *) (addr + ehdr->e_shoff +
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(ehdr->e_shstrndx * sizeof (Elf32_Shdr)));
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if (shdr->sh_type == SHT_STRTAB)
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strtab = (u8 *) (addr + shdr->sh_offset);
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/* Load each appropriate section */
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for (i = 0; i < ehdr->e_shnum; ++i) {
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shdr = (Elf32_Shdr *) (addr + ehdr->e_shoff +
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(i * sizeof (Elf32_Shdr)));
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if (!(shdr->sh_flags & SHF_ALLOC)
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|| shdr->sh_addr == 0 || shdr->sh_size == 0) {
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continue;
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}
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shdr->sh_addr &= 0x3FFFFFFF;
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shdr->sh_addr |= 0x80000000;
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if (strtab) {
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/*printf ("%sing section %s @ 0x%08x (0x%08x bytes)\n",
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(shdr->sh_type == SHT_NOBITS) ?
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"clear" : "load",
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&strtab[shdr->sh_name],
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(u32) shdr->sh_addr,
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(u32) shdr->sh_size);*/
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}
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if (shdr->sh_type == SHT_NOBITS) {
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memset ((void *) shdr->sh_addr, 0, shdr->sh_size);
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} else {
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image = (u8 *) addr + shdr->sh_offset;
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memcpy ((void *) shdr->sh_addr,
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(const void *) image,
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shdr->sh_size);
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}
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DCFlushRangeNoSync ((void *) shdr->sh_addr, shdr->sh_size);
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}
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return (ehdr->e_entry & 0x3FFFFFFF) | 0x80000000;
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}
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