1 // SPDX-License-Identifier: GPL-2.0-only
6  * Copyright (C) 1999-2019 Alibaba Group Holding Limited. by:
9  * Copyright 2011 - 2012 Cavium, Inc.
20  * Strategy: alter the vmlinux file in-place.
176  * the way to -256..-1, to avoid conflicting with real section
179 #define SPECIAL(i) ((i) - (SHN_HIRESERVE + 1))
186 /* Accessor for sym->st_shndx, hides ugliness of "64k sections" */
209 		return -1;  in compare_relative_table()
235 		w(r(loc) - i, loc);  in sort_relative_table()
249 		/* Don't touch the fixup type or data */  in sort_relative_table_with_data()
260 		w(r(loc) - i, loc);  in sort_relative_table_with_data()
261 		w(r(loc + 1) - (i + 4), loc + 1);  in sort_relative_table_with_data()
262 		/* Don't touch the fixup type or data */  in sort_relative_table_with_data()
270 	int rc = -1;  in do_file()
274 	switch (ehdr->e_ident[EI_DATA]) {  in do_file()
293 			ehdr->e_ident[EI_DATA], fname);  in do_file()
294 		return -1;  in do_file()
297 	if (memcmp(ELFMAG, ehdr->e_ident, SELFMAG) != 0 ||  in do_file()
298 	    (r2(&ehdr->e_type) != ET_EXEC && r2(&ehdr->e_type) != ET_DYN) ||  in do_file()
299 	    ehdr->e_ident[EI_VERSION] != EV_CURRENT) {  in do_file()
301 		return -1;  in do_file()
304 	switch (r2(&ehdr->e_machine)) {  in do_file()
327 			r2(&ehdr->e_machine), fname);  in do_file()
328 		return -1;  in do_file()
331 	switch (ehdr->e_ident[EI_CLASS]) {  in do_file()
333 		if (r2(&ehdr->e_ehsize) != sizeof(Elf32_Ehdr) ||  in do_file()
334 		    r2(&ehdr->e_shentsize) != sizeof(Elf32_Shdr)) {  in do_file()
344 		if (r2(&ghdr->e_ehsize) != sizeof(Elf64_Ehdr) ||  in do_file()
345 		    r2(&ghdr->e_shentsize) != sizeof(Elf64_Shdr)) {  in do_file()
356 			ehdr->e_ident[EI_CLASS], fname);  in do_file()
365 	int i, n_error = 0;  /* gcc-4.3.0 false positive complaint */  in main()
374 	/* Process each file in turn, allowing deep failure. */  in main()