14  * The input of this program is the relocatable ELF object containing
27 #include <elf.h>
132 /* Global state of the processed ELF. */
140 } elf;  variable
167 			elf.path, ## __VA_ARGS__);			\
175 			elf.path, strerror(errno));			\
199  * the beginning of the ELF file.
201 #define elf_ptr(type, off) ((type *)(elf.begin + (off)))
203 /* Iterate over all sections in the ELF. */
205 	for (var = elf.sh_table; var < elf.sh_table + elf16toh(elf.ehdr->e_shnum); ++var)
221 	return elf.sh_string + elf32toh(shdr->sh_name);  in section_name()
241 	return &elf.sh_table[idx];  in section_by_idx()
245  * Memory-map the given ELF file, perform sanity checks, and
254 	elf.path = path;  in init_elf()
256 	/* Open the ELF file. */  in init_elf()
259 		fatal_perror("Could not open ELF file");  in init_elf()
261 	/* Get status of ELF file to obtain its size. */  in init_elf()
265 		fatal_perror("Could not get status of ELF file");  in init_elf()
268 	/* mmap() the entire ELF file read-only at an arbitrary address. */  in init_elf()
269 	elf.begin = mmap(0, stat.st_size, PROT_READ, MAP_PRIVATE, fd, 0);  in init_elf()
270 	if (elf.begin == MAP_FAILED) {  in init_elf()
272 		fatal_perror("Could not mmap ELF file");  in init_elf()
278 	/* Get pointer to the ELF header. */  in init_elf()
279 	assert_ge(stat.st_size, sizeof(*elf.ehdr), "%lu");  in init_elf()
280 	elf.ehdr = elf_ptr(Elf64_Ehdr, 0);  in init_elf()
282 	/* Check the ELF magic. */  in init_elf()
283 	assert_eq(elf.ehdr->e_ident[EI_MAG0], ELFMAG0, "0x%x");  in init_elf()
284 	assert_eq(elf.ehdr->e_ident[EI_MAG1], ELFMAG1, "0x%x");  in init_elf()
285 	assert_eq(elf.ehdr->e_ident[EI_MAG2], ELFMAG2, "0x%x");  in init_elf()
286 	assert_eq(elf.ehdr->e_ident[EI_MAG3], ELFMAG3, "0x%x");  in init_elf()
289 	assert_eq(elf.ehdr->e_ident[EI_CLASS], ELFCLASS64, "%u");  in init_elf()
290 	assert_eq(elf.ehdr->e_ident[EI_DATA], ELFENDIAN, "%u");  in init_elf()
291 	assert_eq(elf16toh(elf.ehdr->e_type), ET_REL, "%u");  in init_elf()
292 	assert_eq(elf16toh(elf.ehdr->e_machine), EM_AARCH64, "%u");  in init_elf()
295 	elf.sh_table = section_by_off(elf64toh(elf.ehdr->e_shoff));  in init_elf()
296 	elf.sh_string = section_begin(section_by_idx(elf16toh(elf.ehdr->e_shstrndx)));  in init_elf()
365 	Elf64_Shdr *sh_orig = &elf.sh_table[elf32toh(sh_rela->sh_info)];  in emit_rela_section()