static int _new_file(DL * dl, char const * pathname)
{
Elf_Phdr * phdr;
size_t i;
ssize_t len;
dl->fd = open(pathname, O_RDONLY);
dl->path = strdup(pathname);
if(dl->fd < 0 || dl->path == NULL)
return _dl_error_set_errno(-1);
/* read the ELF header */
if(_file_read_ehdr(dl->fd, &dl->ehdr) != 0)
return -1;
/* read the program headers */
if((phdr = _dl_load(dl, dl->ehdr.e_phoff, sizeof(*phdr)
* dl->ehdr.e_phnum)) == NULL)
return -1;
for(i = 0; i < dl->ehdr.e_phnum; i++)
{
if(phdr[i].p_type != PT_LOAD)
continue;
if(phdr[i].p_filesz > phdr[i].p_memsz)
{
free(phdr);
return _dl_error_set(DE_INVALID_FORMAT, -1);
}
if(_file_mmap(dl, &phdr[i]) == 0)
continue;
free(phdr);
return -1;
}
free(phdr);
/* read the section headers */
if((len = dl->ehdr.e_shnum * sizeof(*dl->shdr)) < 0) /* XXX relevant? */
return _dl_error_set(DE_INVALID_FORMAT, -1);
if((dl->shdr = _dl_load(dl, dl->ehdr.e_shoff, len)) == NULL)
return -1;
if(_file_symbols(dl) != 0 || _file_relocations(dl) != 0)
return -1;
return 0;
}
void *file_mmap_share(struct file *file, uint64_t size)
{
return _file_mmap(file, size, MAP_SHARED);
}
