elf_open
ret = elf_open(binary_path, &elf_fd);
err = elf_open(binary_path, &elf_fd);
err = elf_open(binary_path, &elf_fd);
int elf_open(const char *binary_path, struct elf_fd *elf_fd);
err = elf_open(path, &elf_fd);