8  * Usage: nm -n vmlinux | scripts/kallsyms [--all-symbols] > symbols.S
72 	"__per_cpu_start", "__per_cpu_end", -1ULL, 0
90 	fprintf(stderr, "Usage: kallsyms [--all-symbols] [--absolute-percpu] "  in usage()
91 			"[--base-relative] in.map > out.S\n");  in usage()
97 	return (char *)s->sym + 1;  in sym_name()
108 		 * when --all-symbols is specified so exclude them to get a  in is_ignored_symbol()
128 		"__kvm_nvhe_$",		/* arm64 local symbols in non-VHE KVM namespace */  in is_ignored_symbol()
129 		"__kvm_nvhe_.L",	/* arm64 local symbols in non-VHE KVM namespace */  in is_ignored_symbol()
166 		int l = strlen(name) - strlen(*p);  in is_ignored_symbol()
204 		if (strcmp(sym, ar->start_sym) == 0) {  in check_symbol_range()
205 			ar->start = addr;  in check_symbol_range()
207 		} else if (strcmp(sym, ar->end_sym) == 0) {  in check_symbol_range()
208 			ar->end = addr;  in check_symbol_range()
256 	sym->addr = addr;  in read_symbol()
257 	sym->len = len;  in read_symbol()
258 	sym->sym[0] = type;  in read_symbol()
260 	sym->percpu_absolute = 0;  in read_symbol()
274 		if (s->addr >= ar->start && s->addr <= ar->end)  in symbol_in_range()
285 	/* if --all-symbols is not specified, then symbols outside the text  in symbol_valid()
297 		if ((s->addr == text_range_text->end &&  in symbol_valid()
298 		     strcmp(name, text_range_text->end_sym)) ||  in symbol_valid()
299 		    (s->addr == text_range_inittext->end &&  in symbol_valid()
300 		     strcmp(name, text_range_inittext->end_sym)))  in symbol_valid()
347 		sym->start_pos = table_cnt;  in read_map()
376 		printf("\tPTR\t_text + %#llx\n", addr - _text);  in output_address()
378 		printf("\tPTR\t_text - %#llx\n", _text - addr);  in output_address()
401 		len--;  in expand_symbol()
410 	return s->percpu_absolute;  in symbol_absolute()
422 	printf("#define PTR .quad\n");  in write_src()
441 			 * non-relocatable fixed offsets that will be fixed  in write_src()
449 				offset = table[i]->addr - relative_base;  in write_src()
452 				offset = table[i]->addr;  in write_src()
455 				offset = relative_base - table[i]->addr - 1;  in write_src()
460 					"%s symbol value %#llx out of range in relative mode\n",  in write_src()
462 					table[i]->addr);  in write_src()
467 			output_address(table[i]->addr);  in write_src()
469 			printf("\tPTR\t%#llx\n", table[i]->addr);  in write_src()
500 		if (table[i]->len == 0) {  in write_src()
506 		/* Only lengths that fit in up-to-two-byte ULEB128 are supported. */  in write_src()
507 		if (table[i]->len > 0x3FFF) {  in write_src()
514 		if (table[i]->len <= 0x7F) {  in write_src()
516 			printf("\t.byte 0x%02x", table[i]->len);  in write_src()
517 			off += table[i]->len + 1;  in write_src()
521 				(table[i]->len & 0x7F) | 0x80,  in write_src()
522 				(table[i]->len >> 7) & 0x7F);  in write_src()
523 			off += table[i]->len + 2;  in write_src()
525 		for (k = 0; k < table[i]->len; k++)  in write_src()
526 			printf(", 0x%02x", table[i]->sym[k]);  in write_src()
562 	for (i = 0; i < len - 1; i++)  in learn_symbol()
571 	for (i = 0; i < len - 1; i++)  in forget_symbol()
572 		token_profit[ symbol[i] + (symbol[i + 1] << 8) ]--;  in forget_symbol()
581 		learn_symbol(table[i]->sym, table[i]->len);  in build_initial_tok_table()
589 	for (i = 0; i < len - 1; i++) {  in find_token()
605 		len = table[i]->len;  in compress_symbols()
606 		p1 = table[i]->sym;  in compress_symbols()
613 		forget_symbol(table[i]->sym, len);  in compress_symbols()
620 			size -= (p2 - p1);  in compress_symbols()
623 			len--;  in compress_symbols()
632 		table[i]->len = len;  in compress_symbols()
635 		learn_symbol(table[i]->sym, len);  in compress_symbols()
644 	bestprofit=-10000;  in find_best_token()
663 	for (i = 255; i >= 0; i--) {  in optimize_result()
691 		for (j = 0; j < table[i]->len; j++) {  in insert_real_symbols_in_table()
692 			c = table[i]->sym[j];  in insert_real_symbols_in_table()
709 static int may_be_linker_script_provide_symbol(const struct sym_entry *se)  in may_be_linker_script_provide_symbol()  argument
711 	const char *symbol = sym_name(se);  in may_be_linker_script_provide_symbol()
712 	int len = se->len - 1;  in may_be_linker_script_provide_symbol()
733 	if (!memcmp(symbol + len - 6, "_start", 6))  in may_be_linker_script_provide_symbol()
737 	if (!memcmp(symbol + len - 4, "_end", 4))  in may_be_linker_script_provide_symbol()
750 	if (sa->addr > sb->addr)  in compare_symbols()
752 	if (sa->addr < sb->addr)  in compare_symbols()
753 		return -1;  in compare_symbols()
756 	wa = (sa->sym[0] == 'w') || (sa->sym[0] == 'W');  in compare_symbols()
757 	wb = (sb->sym[0] == 'w') || (sb->sym[0] == 'W');  in compare_symbols()
759 		return wa - wb;  in compare_symbols()
765 		return wa - wb;  in compare_symbols()
771 		return wa - wb;  in compare_symbols()
774 	return sa->start_pos - sb->start_pos;  in compare_symbols()
793 			table[i]->sym[0] = 'A';  in make_percpus_absolute()
794 			table[i]->percpu_absolute = 1;  in make_percpus_absolute()
798 /* find the minimum non-absolute symbol address */
807 			 * Take the first non-absolute symbol value.  in record_relative_base()
809 			relative_base = table[i]->addr;  in record_relative_base()
818 			{"all-symbols",     no_argument, &all_symbols,     1},  in main()
819 			{"absolute-percpu", no_argument, &absolute_percpu, 1},  in main()
820 			{"base-relative",   no_argument, &base_relative,   1},  in main()
826 		if (c == -1)  in main()