mirror of
https://github.com/zeldaret/oot.git
synced 2024-11-15 06:06:04 +00:00
aa97586659
* [Audio 6/?] Build Soundfonts and the Soundfont Table * Improve lots of error messages * First suggested changes * Make audio build debugging more friendly Co-authored-by: Dragorn421 <Dragorn421@users.noreply.github.com> * Some fixes from MM review * Make soundfont_table.h generation depend on the samplebank xmls since they are read, report from which soundfont the invalid pointer indirect warning originates from --------- Co-authored-by: Dragorn421 <Dragorn421@users.noreply.github.com>
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/* SPDX-FileCopyrightText: Copyright (C) 2024 ZeldaRET */
|
|
/* SPDX-License-Identifier: CC0-1.0 */
|
|
#include <errno.h>
|
|
#include <stdarg.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "elf32.h"
|
|
#include "util.h"
|
|
|
|
/**
|
|
* Converts symbols defined in an ELF file to ABS symbols so their values remain
|
|
* unchanged after linking against them. This is used for soundfonts as references
|
|
* to symbols defined in the soundfont should remain file-relative even after the
|
|
* final link.
|
|
*/
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
if (argc < 3) {
|
|
fprintf(stderr, "Usage: %s in.elf out.elf\n", argv[0]);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
// read input elf file
|
|
|
|
size_t data_size;
|
|
void *data = elf32_read(argv[1], &data_size);
|
|
|
|
// locate symtab
|
|
|
|
Elf32_Shdr *symtab = elf32_get_symtab(data, data_size);
|
|
if (symtab == NULL)
|
|
error("Symtab not found");
|
|
|
|
uint32_t sh_offset = elf32_read32(symtab->sh_offset);
|
|
uint32_t sh_size = elf32_read32(symtab->sh_size);
|
|
|
|
// patch defined symbols to be ABS
|
|
|
|
Elf32_Sym *sym = GET_PTR(data, sh_offset);
|
|
Elf32_Sym *sym_end = GET_PTR(data, sh_offset + sh_size);
|
|
|
|
for (size_t i = 0; sym < sym_end; sym++, i++) {
|
|
validate_read(sh_offset + i * sizeof(Elf32_Sym), sizeof(Elf32_Sym), data_size);
|
|
|
|
if (elf32_read16(sym->st_shndx) != SHN_UND)
|
|
sym->st_shndx = elf32_write16(SHN_ABS);
|
|
}
|
|
|
|
// write output elf file
|
|
|
|
util_write_whole_file(argv[2], data, data_size);
|
|
return EXIT_SUCCESS;
|
|
}
|