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Fix NRO section addresses

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This commit is contained in:
shinyquagsire23 2017-11-13 17:08:41 -07:00
parent 25dc323199
commit 116da355bb
1 changed files with 14 additions and 13 deletions
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27
tools/elf2nro.c
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@ -105,10 +105,9 @@ int main(int argc, char* argv[]) {
Elf64_Phdr* phdrs = (Elf64_Phdr*) &elf[hdr->e_phoff];
size_t i, j = 0;
size_t file_off = sizeof(NroHeader) + sizeof(NroStart);
size_t file_off = 0;
uint8_t* comp_buf[3];
int comp_sz[3];
uint8_t* buf[3];
for (i=0; i<4; i++) {
Elf64_Phdr* phdr = NULL;
@ -131,19 +130,19 @@ int main(int argc, char* argv[]) {
break;
}
nro_hdr.Segments[i].FileOff = file_off;
nro_hdr.Segments[i].Size = phdr->p_filesz + phdr->p_memsz;
nro_hdr.Segments[i].Size = (nro_hdr.Segments[i].Size + 0xFFF) & ~0xFFF;
comp_buf[i] = malloc(phdr->p_filesz);
nro_hdr.Segments[i].FileOff = phdr->p_vaddr;
nro_hdr.Segments[i].Size = (phdr->p_memsz + 0xFFF) & ~0xFFF;
buf[i] = malloc(nro_hdr.Segments[i].Size);
memset(buf[i], 0, nro_hdr.Segments[i].Size);
if (comp_buf[i] == NULL) {
if (buf[i] == NULL) {
fprintf(stderr, "Out of memory!\n");
return EXIT_FAILURE;
}
memcpy(comp_buf[i], &elf[phdr->p_offset], phdr->p_filesz);
memcpy(buf[i], &elf[phdr->p_offset], phdr->p_filesz);
file_off += phdr->p_filesz + phdr->p_memsz;
file_off += nro_hdr.Segments[i].Size;
file_off = (file_off + 0xFFF) & ~0xFFF;
}
@ -157,14 +156,16 @@ int main(int argc, char* argv[]) {
nro_hdr.size = file_off;
// TODO check retvals
fwrite(&nro_start, sizeof(nro_start), 1, out);
fwrite(&nro_hdr, sizeof(nro_hdr), 1, out);
for (i=0; i<3; i++)
{
fseek(out, nro_hdr.Segments[i].FileOff, SEEK_SET);
fwrite(comp_buf[i], comp_sz[i], 1, out);
fwrite(buf[i], nro_hdr.Segments[i].Size, 1, out);
}
fseek(out, 0, SEEK_SET);
fwrite(&nro_start, sizeof(nro_start), 1, out);
fwrite(&nro_hdr, sizeof(nro_hdr), 1, out);
return EXIT_SUCCESS;
}