11da177e4SLinus Torvalds /* Generate assembler source containing symbol information
21da177e4SLinus Torvalds *
31da177e4SLinus Torvalds * Copyright 2002 by Kai Germaschewski
41da177e4SLinus Torvalds *
51da177e4SLinus Torvalds * This software may be used and distributed according to the terms
61da177e4SLinus Torvalds * of the GNU General Public License, incorporated herein by reference.
71da177e4SLinus Torvalds *
8*020925ceSSong Liu * Usage: kallsyms [--all-symbols] [--absolute-percpu] in.map > out.S
91da177e4SLinus Torvalds *
101da177e4SLinus Torvalds * Table compression uses all the unused char codes on the symbols and
111da177e4SLinus Torvalds * maps these to the most used substrings (tokens). For instance, it might
121da177e4SLinus Torvalds * map char code 0xF7 to represent "write_" and then in every symbol where
131da177e4SLinus Torvalds * "write_" appears it can be replaced by 0xF7, saving 5 bytes.
141da177e4SLinus Torvalds * The used codes themselves are also placed in the table so that the
151da177e4SLinus Torvalds * decompresion can work without "special cases".
161da177e4SLinus Torvalds * Applied to kernel symbols, this usually produces a compression ratio
171da177e4SLinus Torvalds * of about 50%.
181da177e4SLinus Torvalds *
191da177e4SLinus Torvalds */
201da177e4SLinus Torvalds
211c975da5SMasahiro Yamada #include <errno.h>
22aa221f2eSMasahiro Yamada #include <getopt.h>
23a41333e0SMasahiro Yamada #include <stdbool.h>
241da177e4SLinus Torvalds #include <stdio.h>
251da177e4SLinus Torvalds #include <stdlib.h>
261da177e4SLinus Torvalds #include <string.h>
271da177e4SLinus Torvalds #include <ctype.h>
282213e9a6SArd Biesheuvel #include <limits.h>
291da177e4SLinus Torvalds
3017b1f0deSMike Frysinger #include <xalloc.h>
3117b1f0deSMike Frysinger
32b8a94bfbSMiguel Ojeda #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
331da177e4SLinus Torvalds
341da177e4SLinus Torvalds #define KSYM_NAME_LEN 512
351da177e4SLinus Torvalds
36b3dbb4ecSPaulo Marques struct sym_entry {
3760443c88SZhen Lei unsigned long long addr;
381a7c8d24SMasahiro Yamada unsigned int len;
399d82973eSLinus Torvalds unsigned int seq;
401da177e4SLinus Torvalds bool percpu_absolute;
411da177e4SLinus Torvalds unsigned char sym[];
4278eb7159SKees Cook };
4378eb7159SKees Cook
4417b1f0deSMike Frysinger struct addr_range {
4517b1f0deSMike Frysinger const char *start_sym, *end_sym;
4617b1f0deSMike Frysinger unsigned long long start, end;
4717b1f0deSMike Frysinger };
482213e9a6SArd Biesheuvel
4978eb7159SKees Cook static unsigned long long _text;
5017b1f0deSMike Frysinger static unsigned long long relative_base;
5117b1f0deSMike Frysinger static struct addr_range text_ranges[] = {
5217b1f0deSMike Frysinger { "_stext", "_etext" },
5317b1f0deSMike Frysinger { "_sinittext", "_einittext" },
5417b1f0deSMike Frysinger };
5517b1f0deSMike Frysinger #define text_range_text (&text_ranges[0])
56c6bda7c9SRusty Russell #define text_range_inittext (&text_ranges[1])
57c6bda7c9SRusty Russell
58c6bda7c9SRusty Russell static struct addr_range percpu_range = {
59c6bda7c9SRusty Russell "__per_cpu_start", "__per_cpu_end", -1ULL, 0
608d605269SMasahiro Yamada };
61b3dbb4ecSPaulo Marques
62831362fcSMasahiro Yamada static struct sym_entry **table;
63831362fcSMasahiro Yamada static unsigned int table_size, table_cnt;
641da177e4SLinus Torvalds static int all_symbols;
65f43e9daaSMasahiro Yamada static int absolute_percpu;
661da177e4SLinus Torvalds
671da177e4SLinus Torvalds static int token_profit[0x10000];
68f43e9daaSMasahiro Yamada
69f43e9daaSMasahiro Yamada /* the table that holds the result of the compression */
701da177e4SLinus Torvalds static unsigned char best_table[256][2];
711da177e4SLinus Torvalds static unsigned char best_table_len[256];
72b3dbb4ecSPaulo Marques
731da177e4SLinus Torvalds
usage(void)74*020925ceSSong Liu static void usage(void)
751da177e4SLinus Torvalds {
761da177e4SLinus Torvalds fprintf(stderr, "Usage: kallsyms [--all-symbols] [--absolute-percpu] in.map > out.S\n");
771da177e4SLinus Torvalds exit(1);
7829e55ad3SMasahiro Yamada }
7929e55ad3SMasahiro Yamada
sym_name(const struct sym_entry * s)8029e55ad3SMasahiro Yamada static char *sym_name(const struct sym_entry *s)
8129e55ad3SMasahiro Yamada {
8229e55ad3SMasahiro Yamada return (char *)s->sym + 1;
83a41333e0SMasahiro Yamada }
84a41333e0SMasahiro Yamada
is_ignored_symbol(const char * name,char type)85a7b00a18SMasahiro Yamada static bool is_ignored_symbol(const char *name, char type)
86887df76dSMasahiro Yamada {
87887df76dSMasahiro Yamada if (type == 'u' || type == 'n')
88887df76dSMasahiro Yamada return true;
89887df76dSMasahiro Yamada
90887df76dSMasahiro Yamada if (toupper(type) == 'A') {
91887df76dSMasahiro Yamada /* Keep these useful absolute symbols */
92887df76dSMasahiro Yamada if (strcmp(name, "__kernel_syscall_via_break") &&
93887df76dSMasahiro Yamada strcmp(name, "__kernel_syscall_via_epc") &&
94887df76dSMasahiro Yamada strcmp(name, "__kernel_sigtramp") &&
95887df76dSMasahiro Yamada strcmp(name, "__gp"))
96887df76dSMasahiro Yamada return true;
97a41333e0SMasahiro Yamada }
98a41333e0SMasahiro Yamada
99a41333e0SMasahiro Yamada return false;
100b6233d0dSMasahiro Yamada }
10178eb7159SKees Cook
check_symbol_range(const char * sym,unsigned long long addr,struct addr_range * ranges,int entries)10217b1f0deSMike Frysinger static void check_symbol_range(const char *sym, unsigned long long addr,
10317b1f0deSMike Frysinger struct addr_range *ranges, int entries)
10478eb7159SKees Cook {
10517b1f0deSMike Frysinger size_t i;
10678eb7159SKees Cook struct addr_range *ar;
10778eb7159SKees Cook
10817b1f0deSMike Frysinger for (i = 0; i < entries; ++i) {
10978eb7159SKees Cook ar = &ranges[i];
11078eb7159SKees Cook
111b6233d0dSMasahiro Yamada if (strcmp(sym, ar->start_sym) == 0) {
11278eb7159SKees Cook ar->start = addr;
11378eb7159SKees Cook return;
114b6233d0dSMasahiro Yamada } else if (strcmp(sym, ar->end_sym) == 0) {
11517b1f0deSMike Frysinger ar->end = addr;
11617b1f0deSMike Frysinger return;
11717b1f0deSMike Frysinger }
11817b1f0deSMike Frysinger }
1191c975da5SMasahiro Yamada }
1201da177e4SLinus Torvalds
read_symbol(FILE * in,char ** buf,size_t * buf_len)1211c975da5SMasahiro Yamada static struct sym_entry *read_symbol(FILE *in, char **buf, size_t *buf_len)
1228d605269SMasahiro Yamada {
1231c975da5SMasahiro Yamada char *name, type, *p;
1241c975da5SMasahiro Yamada unsigned long long addr;
1258d605269SMasahiro Yamada size_t len;
1261da177e4SLinus Torvalds ssize_t readlen;
12723835308SJames Clark struct sym_entry *sym;
1281c975da5SMasahiro Yamada
1291c975da5SMasahiro Yamada errno = 0;
1301c975da5SMasahiro Yamada readlen = getline(buf, buf_len, in);
1311c975da5SMasahiro Yamada if (readlen < 0) {
1321c975da5SMasahiro Yamada if (errno) {
1331c975da5SMasahiro Yamada perror("read_symbol");
1348d605269SMasahiro Yamada exit(EXIT_FAILURE);
1351da177e4SLinus Torvalds }
1361c975da5SMasahiro Yamada return NULL;
1371c975da5SMasahiro Yamada }
1381c975da5SMasahiro Yamada
1391c975da5SMasahiro Yamada if ((*buf)[readlen - 1] == '\n')
1401c975da5SMasahiro Yamada (*buf)[readlen - 1] = 0;
1411c975da5SMasahiro Yamada
1421c975da5SMasahiro Yamada addr = strtoull(*buf, &p, 16);
1431c975da5SMasahiro Yamada
1441c975da5SMasahiro Yamada if (*buf == p || *p++ != ' ' || !isascii((type = *p++)) || *p++ != ' ') {
1451c975da5SMasahiro Yamada fprintf(stderr, "line format error\n");
1461c975da5SMasahiro Yamada exit(EXIT_FAILURE);
1471c975da5SMasahiro Yamada }
1481c975da5SMasahiro Yamada
1491c975da5SMasahiro Yamada name = p;
1501c975da5SMasahiro Yamada len = strlen(name);
1516db2983cSEugene Loh
152f3462aa9SAndi Kleen if (len >= KSYM_NAME_LEN) {
1531c975da5SMasahiro Yamada fprintf(stderr, "Symbol %s too long for kallsyms (%zu >= %d).\n"
1548d605269SMasahiro Yamada "Please increase KSYM_NAME_LEN both in kernel and kallsyms.c\n",
155f3462aa9SAndi Kleen name, len, KSYM_NAME_LEN);
1561da177e4SLinus Torvalds return NULL;
157be9f6133SMasahiro Yamada }
1588d605269SMasahiro Yamada
159b6233d0dSMasahiro Yamada if (strcmp(name, "_text") == 0)
1607883a143SMikhail Petrov _text = addr;
1617883a143SMikhail Petrov
1627883a143SMikhail Petrov /* Ignore most absolute/undefined (?) symbols. */
1637883a143SMikhail Petrov if (is_ignored_symbol(name, type))
1648d605269SMasahiro Yamada return NULL;
1658d605269SMasahiro Yamada
1661da177e4SLinus Torvalds check_symbol_range(name, addr, text_ranges, ARRAY_SIZE(text_ranges));
1671da177e4SLinus Torvalds check_symbol_range(name, addr, &percpu_range, 1);
1681da177e4SLinus Torvalds
1691c975da5SMasahiro Yamada /* include the type field in the symbol name, so that it gets
1708d605269SMasahiro Yamada * compressed together */
1719d1b3895SMasahiro Yamada len++;
1728d605269SMasahiro Yamada
173f1a136e0SJesper Juhl sym = xmalloc(sizeof(*sym) + len + 1);
174f1a136e0SJesper Juhl sym->addr = addr;
175f1a136e0SJesper Juhl sym->len = len;
176f1a136e0SJesper Juhl sym->sym[0] = type;
1778d605269SMasahiro Yamada strcpy(sym_name(sym), name);
1788d605269SMasahiro Yamada sym->percpu_absolute = false;
1798d605269SMasahiro Yamada
1809d1b3895SMasahiro Yamada return sym;
1811a7c8d24SMasahiro Yamada }
1821da177e4SLinus Torvalds
symbol_in_range(const struct sym_entry * s,const struct addr_range * ranges,int entries)1838d605269SMasahiro Yamada static int symbol_in_range(const struct sym_entry *s,
1841da177e4SLinus Torvalds const struct addr_range *ranges, int entries)
1851da177e4SLinus Torvalds {
1864bfe2b78SMasahiro Yamada size_t i;
1874bfe2b78SMasahiro Yamada const struct addr_range *ar;
18817b1f0deSMike Frysinger
18917b1f0deSMike Frysinger for (i = 0; i < entries; ++i) {
1904bfe2b78SMasahiro Yamada ar = &ranges[i];
19117b1f0deSMike Frysinger
19278eb7159SKees Cook if (s->addr >= ar->start && s->addr <= ar->end)
19378eb7159SKees Cook return 1;
19417b1f0deSMike Frysinger }
19578eb7159SKees Cook
196ac6ca5c8SMike Frysinger return 0;
19717b1f0deSMike Frysinger }
19817b1f0deSMike Frysinger
string_starts_with(const char * s,const char * prefix)199ac6ca5c8SMike Frysinger static bool string_starts_with(const char *s, const char *prefix)
20017b1f0deSMike Frysinger {
20117b1f0deSMike Frysinger return strncmp(s, prefix, strlen(prefix)) == 0;
202a7f13d0fSKent Overstreet }
203a7f13d0fSKent Overstreet
symbol_valid(const struct sym_entry * s)204a7f13d0fSKent Overstreet static int symbol_valid(const struct sym_entry *s)
205a7f13d0fSKent Overstreet {
206a7f13d0fSKent Overstreet const char *name = sym_name(s);
2074bfe2b78SMasahiro Yamada
2081da177e4SLinus Torvalds /* if --all-symbols is not specified, then symbols outside the text
20929e55ad3SMasahiro Yamada * and inittext sections are discarded */
210bd8b22d2SArd Biesheuvel if (!all_symbols) {
2111da177e4SLinus Torvalds /*
2121da177e4SLinus Torvalds * Symbols starting with __start and __stop are used to denote
2131da177e4SLinus Torvalds * section boundaries, and should always be included:
214a7f13d0fSKent Overstreet */
215a7f13d0fSKent Overstreet if (string_starts_with(name, "__start_") ||
216a7f13d0fSKent Overstreet string_starts_with(name, "__stop_"))
217a7f13d0fSKent Overstreet return 1;
218a7f13d0fSKent Overstreet
219a7f13d0fSKent Overstreet if (symbol_in_range(s, text_ranges,
220a7f13d0fSKent Overstreet ARRAY_SIZE(text_ranges)) == 0)
221a7f13d0fSKent Overstreet return 0;
22278eb7159SKees Cook /* Corner case. Discard any symbols with the same value as
22378eb7159SKees Cook * _etext _einittext; they can move between pass 1 and 2 when
2241da177e4SLinus Torvalds * the kallsyms data are added. If these symbols move then
2251da177e4SLinus Torvalds * they may get dropped in pass 2, which breaks the kallsyms
226a3b81113SRobin Getz * rules.
227a3b81113SRobin Getz */
228a3b81113SRobin Getz if ((s->addr == text_range_text->end &&
229a3b81113SRobin Getz strcmp(name, text_range_text->end_sym)) ||
2301da177e4SLinus Torvalds (s->addr == text_range_inittext->end &&
23117b1f0deSMike Frysinger strcmp(name, text_range_inittext->end_sym)))
23229e55ad3SMasahiro Yamada return 0;
23317b1f0deSMike Frysinger }
23429e55ad3SMasahiro Yamada
2351da177e4SLinus Torvalds return 1;
2361da177e4SLinus Torvalds }
2371da177e4SLinus Torvalds
2381da177e4SLinus Torvalds /* remove all the invalid symbols from the table */
shrink_table(void)2391da177e4SLinus Torvalds static void shrink_table(void)
2401da177e4SLinus Torvalds {
2415e5c4fa7SMasahiro Yamada unsigned int i, pos;
2425e5c4fa7SMasahiro Yamada
2435e5c4fa7SMasahiro Yamada pos = 0;
2445e5c4fa7SMasahiro Yamada for (i = 0; i < table_cnt; i++) {
2455e5c4fa7SMasahiro Yamada if (symbol_valid(table[i])) {
2465e5c4fa7SMasahiro Yamada if (pos != i)
2475e5c4fa7SMasahiro Yamada table[pos] = table[i];
2488d605269SMasahiro Yamada pos++;
2495e5c4fa7SMasahiro Yamada } else {
2505e5c4fa7SMasahiro Yamada free(table[i]);
2515e5c4fa7SMasahiro Yamada }
2525e5c4fa7SMasahiro Yamada }
2538d605269SMasahiro Yamada table_cnt = pos;
2545e5c4fa7SMasahiro Yamada }
2555e5c4fa7SMasahiro Yamada
read_map(const char * in)2565e5c4fa7SMasahiro Yamada static void read_map(const char *in)
2575e5c4fa7SMasahiro Yamada {
2585e5c4fa7SMasahiro Yamada FILE *fp;
259aa221f2eSMasahiro Yamada struct sym_entry *sym;
2601da177e4SLinus Torvalds char *buf = NULL;
261aa221f2eSMasahiro Yamada size_t buflen = 0;
2628d605269SMasahiro Yamada
2631c975da5SMasahiro Yamada fp = fopen(in, "r");
2641c975da5SMasahiro Yamada if (!fp) {
2658d605269SMasahiro Yamada perror(in);
266aa221f2eSMasahiro Yamada exit(1);
267aa221f2eSMasahiro Yamada }
268aa221f2eSMasahiro Yamada
269aa221f2eSMasahiro Yamada while (!feof(fp)) {
270aa221f2eSMasahiro Yamada sym = read_symbol(fp, &buf, &buflen);
271aa221f2eSMasahiro Yamada if (!sym)
272aa221f2eSMasahiro Yamada continue;
2731c975da5SMasahiro Yamada
2748d605269SMasahiro Yamada sym->seq = table_cnt;
2758d605269SMasahiro Yamada
2768d605269SMasahiro Yamada if (table_cnt >= table_size) {
2771d48f8feSMasahiro Yamada table_size += 10000;
2788d605269SMasahiro Yamada table = xrealloc(table, sizeof(*table) * table_size);
279b3dbb4ecSPaulo Marques }
280b3dbb4ecSPaulo Marques
281b3dbb4ecSPaulo Marques table[table_cnt++] = sym;
2821da177e4SLinus Torvalds }
2831da177e4SLinus Torvalds
284aa221f2eSMasahiro Yamada free(buf);
2851da177e4SLinus Torvalds fclose(fp);
2861da177e4SLinus Torvalds }
2871da177e4SLinus Torvalds
output_label(const char * label)2888d605269SMasahiro Yamada static void output_label(const char *label)
2898d605269SMasahiro Yamada {
2901da177e4SLinus Torvalds printf(".globl %s\n", label);
291aa221f2eSMasahiro Yamada printf("\tALGN\n");
2921c975da5SMasahiro Yamada printf("%s:\n", label);
293aa221f2eSMasahiro Yamada }
294f2df3f65SPaulo Marques
2951da177e4SLinus Torvalds /* uncompress a compressed symbol. When this function is called, the best table
2964bfe2b78SMasahiro Yamada * might still be compressed itself, so the function needs to be recursive */
expand_symbol(const unsigned char * data,int len,char * result)2971da177e4SLinus Torvalds static int expand_symbol(const unsigned char *data, int len, char *result)
2981da177e4SLinus Torvalds {
2991da177e4SLinus Torvalds int c, rlen, total=0;
3001da177e4SLinus Torvalds
3011da177e4SLinus Torvalds while (len) {
3021da177e4SLinus Torvalds c = *data;
303fd2ab2f6SMasahiro Yamada /* if the table holds a single char that is the same as the one
304fd2ab2f6SMasahiro Yamada * we are looking for, then end the search */
305fd2ab2f6SMasahiro Yamada if (best_table[c][0]==c && best_table_len[c]==1) {
306fd2ab2f6SMasahiro Yamada *result++ = c;
307fd2ab2f6SMasahiro Yamada total++;
308fd2ab2f6SMasahiro Yamada } else {
309fd2ab2f6SMasahiro Yamada /* if not, recurse and expand */
310fd2ab2f6SMasahiro Yamada rlen = expand_symbol(best_table[c], best_table_len[c], result);
311fd2ab2f6SMasahiro Yamada total += rlen;
3121da177e4SLinus Torvalds result += rlen;
3131da177e4SLinus Torvalds }
3144bfe2b78SMasahiro Yamada data++;
3151da177e4SLinus Torvalds len--;
3161da177e4SLinus Torvalds }
3171da177e4SLinus Torvalds *result=0;
3181da177e4SLinus Torvalds
3191da177e4SLinus Torvalds return total;
3201da177e4SLinus Torvalds }
3211da177e4SLinus Torvalds
symbol_absolute(const struct sym_entry * s)3221da177e4SLinus Torvalds static bool symbol_absolute(const struct sym_entry *s)
3231da177e4SLinus Torvalds {
3241da177e4SLinus Torvalds return s->percpu_absolute;
3251da177e4SLinus Torvalds }
3261da177e4SLinus Torvalds
compare_names(const void * a,const void * b)3271da177e4SLinus Torvalds static int compare_names(const void *a, const void *b)
3281da177e4SLinus Torvalds {
3291da177e4SLinus Torvalds int ret;
3301da177e4SLinus Torvalds const struct sym_entry *sa = *(const struct sym_entry **)a;
3311da177e4SLinus Torvalds const struct sym_entry *sb = *(const struct sym_entry **)b;
3321da177e4SLinus Torvalds
3331da177e4SLinus Torvalds ret = strcmp(sym_name(sa), sym_name(sb));
3341da177e4SLinus Torvalds if (!ret) {
3351da177e4SLinus Torvalds if (sa->addr > sb->addr)
3361da177e4SLinus Torvalds return 1;
3371da177e4SLinus Torvalds else if (sa->addr < sb->addr)
3381da177e4SLinus Torvalds return -1;
3391a7c8d24SMasahiro Yamada
34078eb7159SKees Cook /* keep old order */
3418c996940SArd Biesheuvel return (int)(sa->seq - sb->seq);
34278eb7159SKees Cook }
34378eb7159SKees Cook
34460443c88SZhen Lei return ret;
34560443c88SZhen Lei }
34660443c88SZhen Lei
sort_symbols_by_name(void)34760443c88SZhen Lei static void sort_symbols_by_name(void)
34860443c88SZhen Lei {
34960443c88SZhen Lei qsort(table, table_cnt, sizeof(table[0]), compare_names);
350dd1553b8SMasahiro Yamada }
35160443c88SZhen Lei
write_src(void)35260443c88SZhen Lei static void write_src(void)
35360443c88SZhen Lei {
35460443c88SZhen Lei unsigned int i, k, off;
35560443c88SZhen Lei unsigned int best_idx[256];
35660443c88SZhen Lei unsigned int *markers, markers_cnt;
35760443c88SZhen Lei char buf[KSYM_NAME_LEN];
35860443c88SZhen Lei
35960443c88SZhen Lei printf("#include <asm/bitsperlong.h>\n");
36060443c88SZhen Lei printf("#if BITS_PER_LONG == 64\n");
36160443c88SZhen Lei printf("#define PTR .quad\n");
36260443c88SZhen Lei printf("#define ALGN .balign 8\n");
36360443c88SZhen Lei printf("#else\n");
36460443c88SZhen Lei printf("#define PTR .long\n");
36560443c88SZhen Lei printf("#define ALGN .balign 4\n");
36660443c88SZhen Lei printf("#endif\n");
36760443c88SZhen Lei
36860443c88SZhen Lei printf("\t.section .rodata, \"a\"\n");
369b3dbb4ecSPaulo Marques
3701da177e4SLinus Torvalds output_label("kallsyms_num_syms");
371b3dbb4ecSPaulo Marques printf("\t.long\t%u\n", table_cnt);
3721da177e4SLinus Torvalds printf("\n");
373bde6fb37SMasahiro Yamada
3749281aceaSTejun Heo /* table of offset markers, that give the offset in the compressed stream
3751da177e4SLinus Torvalds * every 256 symbols */
376500193ecSMasahiro Yamada markers_cnt = (table_cnt + 255) / 256;
3771da177e4SLinus Torvalds markers = xmalloc(sizeof(*markers) * markers_cnt);
3781da177e4SLinus Torvalds
37972d3ebb9SMathias Krause output_label("kallsyms_names");
3801da177e4SLinus Torvalds off = 0;
3811da177e4SLinus Torvalds for (i = 0; i < table_cnt; i++) {
38272d3ebb9SMathias Krause if ((i & 0xFF) == 0)
3831da177e4SLinus Torvalds markers[i >> 8] = off;
3841da177e4SLinus Torvalds table[i]->seq = i;
385aad09470SJan Beulich
3861da177e4SLinus Torvalds /* There cannot be any symbol of length zero. */
3871da177e4SLinus Torvalds if (table[i]->len == 0) {
38880ffbaa5SJan Beulich fprintf(stderr, "kallsyms failure: "
3891da177e4SLinus Torvalds "unexpected zero symbol length\n");
3901da177e4SLinus Torvalds exit(EXIT_FAILURE);
3911da177e4SLinus Torvalds }
3921da177e4SLinus Torvalds
393bde6fb37SMasahiro Yamada /* Only lengths that fit in up-to-two-byte ULEB128 are supported. */
394bde6fb37SMasahiro Yamada if (table[i]->len > 0x3FFF) {
395f1a136e0SJesper Juhl fprintf(stderr, "kallsyms failure: "
396f1a136e0SJesper Juhl "unexpected huge symbol length\n");
397f1a136e0SJesper Juhl exit(EXIT_FAILURE);
398f1a136e0SJesper Juhl }
399f1a136e0SJesper Juhl
4001da177e4SLinus Torvalds /* Encode length with ULEB128. */
4011da177e4SLinus Torvalds if (table[i]->len <= 0x7F) {
4021da177e4SLinus Torvalds /* Most symbols use a single byte for the length. */
403b3dbb4ecSPaulo Marques printf("\t.byte 0x%02x", table[i]->len);
404b3dbb4ecSPaulo Marques off += table[i]->len + 1;
405b3dbb4ecSPaulo Marques } else {
40660443c88SZhen Lei /* "Big" symbols use two bytes. */
4071da177e4SLinus Torvalds printf("\t.byte 0x%02x, 0x%02x",
40873bbb944SMiguel Ojeda (table[i]->len & 0x7F) | 0x80,
40973bbb944SMiguel Ojeda (table[i]->len >> 7) & 0x7F);
41073bbb944SMiguel Ojeda off += table[i]->len + 2;
41173bbb944SMiguel Ojeda }
41273bbb944SMiguel Ojeda for (k = 0; k < table[i]->len; k++)
41373bbb944SMiguel Ojeda printf(", 0x%02x", table[i]->sym[k]);
41473bbb944SMiguel Ojeda
41573bbb944SMiguel Ojeda /*
41673bbb944SMiguel Ojeda * Now that we wrote out the compressed symbol name, restore the
41773bbb944SMiguel Ojeda * original name and print it in the comment.
41873bbb944SMiguel Ojeda */
41973bbb944SMiguel Ojeda expand_symbol(table[i]->sym, table[i]->len, buf);
42073bbb944SMiguel Ojeda strcpy((char *)table[i]->sym, buf);
42173bbb944SMiguel Ojeda printf("\t/* %s */\n", table[i]->sym);
42273bbb944SMiguel Ojeda }
42373bbb944SMiguel Ojeda printf("\n");
42473bbb944SMiguel Ojeda
4258d605269SMasahiro Yamada output_label("kallsyms_markers");
42673bbb944SMiguel Ojeda for (i = 0; i < markers_cnt; i++)
42773bbb944SMiguel Ojeda printf("\t.long\t%u\n", markers[i]);
42873bbb944SMiguel Ojeda printf("\n");
42973bbb944SMiguel Ojeda
43073bbb944SMiguel Ojeda free(markers);
43173bbb944SMiguel Ojeda
43273bbb944SMiguel Ojeda output_label("kallsyms_token_table");
43373bbb944SMiguel Ojeda off = 0;
4348d605269SMasahiro Yamada for (i = 0; i < 256; i++) {
4358d605269SMasahiro Yamada best_idx[i] = off;
4361da177e4SLinus Torvalds expand_symbol(best_table[i], best_table_len[i], buf);
437dd1553b8SMasahiro Yamada printf("\t.asciz\t\"%s\"\n", buf);
438f9c3d671SMasahiro Yamada off += strlen(buf) + 1;
439f9c3d671SMasahiro Yamada }
440dd1553b8SMasahiro Yamada printf("\n");
441dd1553b8SMasahiro Yamada
442dd1553b8SMasahiro Yamada output_label("kallsyms_token_index");
443f9c3d671SMasahiro Yamada for (i = 0; i < 256; i++)
444dd1553b8SMasahiro Yamada printf("\t.short\t%d\n", best_idx[i]);
445f9c3d671SMasahiro Yamada printf("\n");
446dd1553b8SMasahiro Yamada
4471da177e4SLinus Torvalds output_label("kallsyms_offsets");
448bde6fb37SMasahiro Yamada
44980ffbaa5SJan Beulich for (i = 0; i < table_cnt; i++) {
4501da177e4SLinus Torvalds /*
4511da177e4SLinus Torvalds * Use the offset relative to the lowest value
4521da177e4SLinus Torvalds * encountered of all relative symbols, and emit
4531da177e4SLinus Torvalds * non-relocatable fixed offsets that will be fixed
4541da177e4SLinus Torvalds * up at runtime.
4551da177e4SLinus Torvalds */
4561da177e4SLinus Torvalds
4571da177e4SLinus Torvalds long long offset;
4581da177e4SLinus Torvalds bool overflow;
4591da177e4SLinus Torvalds
4601da177e4SLinus Torvalds if (!absolute_percpu) {
4611da177e4SLinus Torvalds offset = table[i]->addr - relative_base;
4621da177e4SLinus Torvalds overflow = offset < 0 || offset > UINT_MAX;
4631da177e4SLinus Torvalds } else if (symbol_absolute(table[i])) {
4641da177e4SLinus Torvalds offset = table[i]->addr;
4651da177e4SLinus Torvalds overflow = offset < 0 || offset > INT_MAX;
4661da177e4SLinus Torvalds } else {
4671da177e4SLinus Torvalds offset = relative_base - table[i]->addr - 1;
468404bad70SMasahiro Yamada overflow = offset < INT_MIN || offset >= 0;
469404bad70SMasahiro Yamada }
470404bad70SMasahiro Yamada if (overflow) {
471404bad70SMasahiro Yamada fprintf(stderr, "kallsyms failure: "
472404bad70SMasahiro Yamada "%s symbol value %#llx out of range in relative mode\n",
473404bad70SMasahiro Yamada symbol_absolute(table[i]) ? "absolute" : "relative",
474404bad70SMasahiro Yamada table[i]->addr);
475404bad70SMasahiro Yamada exit(EXIT_FAILURE);
476404bad70SMasahiro Yamada }
477404bad70SMasahiro Yamada printf("\t.long\t%#x\t/* %s */\n", (int)offset, table[i]->sym);
478404bad70SMasahiro Yamada }
479404bad70SMasahiro Yamada printf("\n");
480404bad70SMasahiro Yamada
481404bad70SMasahiro Yamada output_label("kallsyms_relative_base");
482404bad70SMasahiro Yamada /* Provide proper symbols relocatability by their '_text' relativeness. */
483404bad70SMasahiro Yamada if (_text <= relative_base)
484404bad70SMasahiro Yamada printf("\tPTR\t_text + %#llx\n", relative_base - _text);
485404bad70SMasahiro Yamada else
486404bad70SMasahiro Yamada printf("\tPTR\t_text - %#llx\n", _text - relative_base);
487404bad70SMasahiro Yamada printf("\n");
488404bad70SMasahiro Yamada
489404bad70SMasahiro Yamada sort_symbols_by_name();
490404bad70SMasahiro Yamada output_label("kallsyms_seqs_of_names");
491404bad70SMasahiro Yamada for (i = 0; i < table_cnt; i++)
492404bad70SMasahiro Yamada printf("\t.byte 0x%02x, 0x%02x, 0x%02x\t/* %s */\n",
493404bad70SMasahiro Yamada (unsigned char)(table[i]->seq >> 16),
494404bad70SMasahiro Yamada (unsigned char)(table[i]->seq >> 8),
495404bad70SMasahiro Yamada (unsigned char)(table[i]->seq >> 0),
496404bad70SMasahiro Yamada table[i]->sym);
497404bad70SMasahiro Yamada printf("\n");
498404bad70SMasahiro Yamada }
499b07e1810SMasahiro Yamada
500404bad70SMasahiro Yamada
501404bad70SMasahiro Yamada /* table lookup compression functions */
502404bad70SMasahiro Yamada
503404bad70SMasahiro Yamada /* count all the possible tokens in a symbol */
learn_symbol(const unsigned char * symbol,int len)504404bad70SMasahiro Yamada static void learn_symbol(const unsigned char *symbol, int len)
505404bad70SMasahiro Yamada {
506404bad70SMasahiro Yamada int i;
507404bad70SMasahiro Yamada
508404bad70SMasahiro Yamada for (i = 0; i < len - 1; i++)
509404bad70SMasahiro Yamada token_profit[ symbol[i] + (symbol[i + 1] << 8) ]++;
510f9c3d671SMasahiro Yamada }
511404bad70SMasahiro Yamada
512404bad70SMasahiro Yamada /* decrease the count for all the possible tokens in a symbol */
forget_symbol(const unsigned char * symbol,int len)513f9c3d671SMasahiro Yamada static void forget_symbol(const unsigned char *symbol, int len)
514f9c3d671SMasahiro Yamada {
515404bad70SMasahiro Yamada int i;
5161da177e4SLinus Torvalds
5171da177e4SLinus Torvalds for (i = 0; i < len - 1; i++)
5181da177e4SLinus Torvalds token_profit[ symbol[i] + (symbol[i + 1] << 8) ]--;
5191da177e4SLinus Torvalds }
5201da177e4SLinus Torvalds
5211da177e4SLinus Torvalds /* do the initial token count */
build_initial_token_table(void)5224bfe2b78SMasahiro Yamada static void build_initial_token_table(void)
5231da177e4SLinus Torvalds {
5241da177e4SLinus Torvalds unsigned int i;
5251da177e4SLinus Torvalds
5261da177e4SLinus Torvalds for (i = 0; i < table_cnt; i++)
527b3dbb4ecSPaulo Marques learn_symbol(table[i]->sym, table[i]->len);
5281da177e4SLinus Torvalds }
5291da177e4SLinus Torvalds
find_token(unsigned char * str,int len,const unsigned char * token)5301da177e4SLinus Torvalds static unsigned char *find_token(unsigned char *str, int len,
5314bfe2b78SMasahiro Yamada const unsigned char *token)
5321da177e4SLinus Torvalds {
5331da177e4SLinus Torvalds int i;
5341da177e4SLinus Torvalds
5351da177e4SLinus Torvalds for (i = 0; i < len - 1; i++) {
536b3dbb4ecSPaulo Marques if (str[i] == token[0] && str[i+1] == token[1])
5371da177e4SLinus Torvalds return &str[i];
5381da177e4SLinus Torvalds }
5395e5c4fa7SMasahiro Yamada return NULL;
540fcdf7197SZhen Lei }
5411da177e4SLinus Torvalds
5425e5c4fa7SMasahiro Yamada /* replace a given token in all the valid symbols. Use the sampled symbols
5431da177e4SLinus Torvalds * to update the counts */
compress_symbols(const unsigned char * str,int idx)5445e5c4fa7SMasahiro Yamada static void compress_symbols(const unsigned char *str, int idx)
5458d605269SMasahiro Yamada {
5461da177e4SLinus Torvalds unsigned int i, len, size;
5471da177e4SLinus Torvalds unsigned char *p1, *p2;
5482558c138SMasahiro Yamada
5494bfe2b78SMasahiro Yamada for (i = 0; i < table_cnt; i++) {
5507c5d249aSPaulo Marques
5517c5d249aSPaulo Marques len = table[i]->len;
5527c5d249aSPaulo Marques p1 = table[i]->sym;
5537c5d249aSPaulo Marques
5547c5d249aSPaulo Marques /* find the token on the symbol */
5557c5d249aSPaulo Marques p2 = find_token(p1, len, str);
5567c5d249aSPaulo Marques if (!p2) continue;
5577c5d249aSPaulo Marques
5587c5d249aSPaulo Marques /* decrease the counts for this symbol's tokens */
5597c5d249aSPaulo Marques forget_symbol(table[i]->sym, len);
5601da177e4SLinus Torvalds
5611da177e4SLinus Torvalds size = len;
5624bfe2b78SMasahiro Yamada
5631da177e4SLinus Torvalds do {
564b3dbb4ecSPaulo Marques *p2 = idx;
565b3dbb4ecSPaulo Marques p2++;
5661da177e4SLinus Torvalds size -= (p2 - p1);
567b3dbb4ecSPaulo Marques memmove(p2, p2 + 1, size);
5681da177e4SLinus Torvalds p1 = p2;
5698d605269SMasahiro Yamada len--;
5708d605269SMasahiro Yamada
571b3dbb4ecSPaulo Marques if (size < 2) break;
572b3dbb4ecSPaulo Marques
5737c5d249aSPaulo Marques /* find the token on the symbol */
574b3dbb4ecSPaulo Marques p2 = find_token(p1, size, str);
575b3dbb4ecSPaulo Marques
576b3dbb4ecSPaulo Marques } while (p2);
5778d605269SMasahiro Yamada
578b3dbb4ecSPaulo Marques table[i]->len = len;
579b3dbb4ecSPaulo Marques
5801da177e4SLinus Torvalds /* increase the counts for this symbol's new tokens */
5811da177e4SLinus Torvalds learn_symbol(table[i]->sym, len);
582b3dbb4ecSPaulo Marques }
583b3dbb4ecSPaulo Marques }
584b3dbb4ecSPaulo Marques
585b3dbb4ecSPaulo Marques /* search the token with the maximum profit */
find_best_token(void)586b3dbb4ecSPaulo Marques static int find_best_token(void)
587b3dbb4ecSPaulo Marques {
588b3dbb4ecSPaulo Marques int i, best, bestprofit;
589b3dbb4ecSPaulo Marques
590b3dbb4ecSPaulo Marques bestprofit=-10000;
5911da177e4SLinus Torvalds best = 0;
5927c5d249aSPaulo Marques
5931da177e4SLinus Torvalds for (i = 0; i < 0x10000; i++) {
594b3dbb4ecSPaulo Marques if (token_profit[i] > bestprofit) {
5951da177e4SLinus Torvalds best = i;
5968d605269SMasahiro Yamada bestprofit = token_profit[i];
597b3dbb4ecSPaulo Marques }
598b3dbb4ecSPaulo Marques }
5998d605269SMasahiro Yamada return best;
6001da177e4SLinus Torvalds }
6011da177e4SLinus Torvalds
6021da177e4SLinus Torvalds /* this is the core of the algorithm: calculate the "best" table */
optimize_result(void)6031da177e4SLinus Torvalds static void optimize_result(void)
604b3dbb4ecSPaulo Marques {
6051da177e4SLinus Torvalds int i, best;
606b3dbb4ecSPaulo Marques
6071da177e4SLinus Torvalds /* using the '\0' symbol last allows compress_symbols to use standard
6081da177e4SLinus Torvalds * fast string functions */
609b3dbb4ecSPaulo Marques for (i = 255; i >= 0; i--) {
6101da177e4SLinus Torvalds
611b3dbb4ecSPaulo Marques /* if this table slot is empty (it is not used by an actual
612b3dbb4ecSPaulo Marques * original char code */
613b3dbb4ecSPaulo Marques if (!best_table_len[i]) {
614b3dbb4ecSPaulo Marques
6151da177e4SLinus Torvalds /* find the token with the best profit value */
6161da177e4SLinus Torvalds best = find_best_token();
6171da177e4SLinus Torvalds if (token_profit[best] == 0)
6181da177e4SLinus Torvalds break;
6191da177e4SLinus Torvalds
6201da177e4SLinus Torvalds /* place it in the "best" table */
6211da177e4SLinus Torvalds best_table_len[i] = 2;
6221da177e4SLinus Torvalds best_table[i][0] = best & 0xFF;
623b3dbb4ecSPaulo Marques best_table[i][1] = (best >> 8) & 0xFF;
6241da177e4SLinus Torvalds
6251da177e4SLinus Torvalds /* replace this token in all the valid symbols */
6261da177e4SLinus Torvalds compress_symbols(best_table[i], i);
6271da177e4SLinus Torvalds }
6281da177e4SLinus Torvalds }
6291da177e4SLinus Torvalds }
6301da177e4SLinus Torvalds
6311da177e4SLinus Torvalds /* start by placing the symbols that are actually used on the table */
insert_real_symbols_in_table(void)6321da177e4SLinus Torvalds static void insert_real_symbols_in_table(void)
633cbf7a90eSCao jin {
6341da177e4SLinus Torvalds unsigned int i, j, c;
635e0a04b11SXiaochen Wang
636e0a04b11SXiaochen Wang for (i = 0; i < table_cnt; i++) {
6371da177e4SLinus Torvalds for (j = 0; j < table[i]->len; j++) {
6381da177e4SLinus Torvalds c = table[i]->sym[j];
639b3dbb4ecSPaulo Marques best_table[c][0]=c;
640b3dbb4ecSPaulo Marques best_table_len[c]=1;
641b3dbb4ecSPaulo Marques }
6421da177e4SLinus Torvalds }
6431da177e4SLinus Torvalds }
644b3dbb4ecSPaulo Marques
optimize_token_table(void)6451da177e4SLinus Torvalds static void optimize_token_table(void)
6461da177e4SLinus Torvalds {
6471da177e4SLinus Torvalds build_initial_token_table();
6481da177e4SLinus Torvalds
6491da177e4SLinus Torvalds insert_real_symbols_in_table();
6501da177e4SLinus Torvalds
6511da177e4SLinus Torvalds optimize_result();
652b3dbb4ecSPaulo Marques }
6531da177e4SLinus Torvalds
654b3dbb4ecSPaulo Marques /* guess for "linker script provide" symbol */
may_be_linker_script_provide_symbol(const struct sym_entry * se)6558d605269SMasahiro Yamada static int may_be_linker_script_provide_symbol(const struct sym_entry *se)
6568d605269SMasahiro Yamada {
6571da177e4SLinus Torvalds const char *symbol = sym_name(se);
6581da177e4SLinus Torvalds int len = se->len - 1;
6591da177e4SLinus Torvalds
6601da177e4SLinus Torvalds if (len < 8)
6611da177e4SLinus Torvalds return 0;
6621da177e4SLinus Torvalds
6631da177e4SLinus Torvalds if (symbol[0] != '_' || symbol[1] != '_')
6641da177e4SLinus Torvalds return 0;
665fcdf7197SZhen Lei
6661da177e4SLinus Torvalds /* __start_XXXXX */
6671da177e4SLinus Torvalds if (!memcmp(symbol + 2, "start_", 6))
6681da177e4SLinus Torvalds return 1;
6691da177e4SLinus Torvalds
6701da177e4SLinus Torvalds /* __stop_XXXXX */
6711da177e4SLinus Torvalds if (!memcmp(symbol + 2, "stop_", 5))
672b478b782SLai Jiangshan return 1;
673b478b782SLai Jiangshan
674b478b782SLai Jiangshan /* __end_XXXXX */
67529e55ad3SMasahiro Yamada if (!memcmp(symbol + 2, "end_", 4))
676b478b782SLai Jiangshan return 1;
677b478b782SLai Jiangshan
678b478b782SLai Jiangshan /* __XXXXX_start */
679b478b782SLai Jiangshan if (!memcmp(symbol + len - 6, "_start", 6))
680b478b782SLai Jiangshan return 1;
681b478b782SLai Jiangshan
682b478b782SLai Jiangshan /* __XXXXX_end */
683b478b782SLai Jiangshan if (!memcmp(symbol + len - 4, "_end", 4))
684b478b782SLai Jiangshan return 1;
685b478b782SLai Jiangshan
686b478b782SLai Jiangshan return 0;
687b478b782SLai Jiangshan }
688b478b782SLai Jiangshan
compare_symbols(const void * a,const void * b)689b478b782SLai Jiangshan static int compare_symbols(const void *a, const void *b)
690b478b782SLai Jiangshan {
691b478b782SLai Jiangshan const struct sym_entry *sa = *(const struct sym_entry **)a;
692b478b782SLai Jiangshan const struct sym_entry *sb = *(const struct sym_entry **)b;
693b478b782SLai Jiangshan int wa, wb;
694b478b782SLai Jiangshan
695b478b782SLai Jiangshan /* sort by address first */
696b478b782SLai Jiangshan if (sa->addr > sb->addr)
697b478b782SLai Jiangshan return 1;
698b478b782SLai Jiangshan if (sa->addr < sb->addr)
699b478b782SLai Jiangshan return -1;
700b478b782SLai Jiangshan
701b478b782SLai Jiangshan /* sort by "weakness" type */
702b478b782SLai Jiangshan wa = (sa->sym[0] == 'w') || (sa->sym[0] == 'W');
703b478b782SLai Jiangshan wb = (sb->sym[0] == 'w') || (sb->sym[0] == 'W');
704b478b782SLai Jiangshan if (wa != wb)
705b478b782SLai Jiangshan return wa - wb;
706b478b782SLai Jiangshan
707f2df3f65SPaulo Marques /* sort by "linker script provide" type */
708f2df3f65SPaulo Marques wa = may_be_linker_script_provide_symbol(sa);
7098d605269SMasahiro Yamada wb = may_be_linker_script_provide_symbol(sb);
7108d605269SMasahiro Yamada if (wa != wb)
711f2df3f65SPaulo Marques return wa - wb;
712f2df3f65SPaulo Marques
713f2df3f65SPaulo Marques /* sort by the number of prefix underscores */
714f2df3f65SPaulo Marques wa = strspn(sym_name(sa), "_");
715f2df3f65SPaulo Marques wb = strspn(sym_name(sb), "_");
716f2df3f65SPaulo Marques if (wa != wb)
717f2df3f65SPaulo Marques return wa - wb;
718f2df3f65SPaulo Marques
719f2df3f65SPaulo Marques /* sort by initial order, so that other symbols are left undisturbed */
720f2df3f65SPaulo Marques return sa->seq - sb->seq;
721f2df3f65SPaulo Marques }
722f2df3f65SPaulo Marques
sort_symbols(void)723f2df3f65SPaulo Marques static void sort_symbols(void)
724f2df3f65SPaulo Marques {
725b478b782SLai Jiangshan qsort(table, table_cnt, sizeof(table[0]), compare_symbols);
726b478b782SLai Jiangshan }
727b478b782SLai Jiangshan
make_percpus_absolute(void)728b478b782SLai Jiangshan static void make_percpus_absolute(void)
729b478b782SLai Jiangshan {
730b478b782SLai Jiangshan unsigned int i;
731b478b782SLai Jiangshan
732aa915245SMasahiro Yamada for (i = 0; i < table_cnt; i++)
733aa915245SMasahiro Yamada if (symbol_in_range(table[i], &percpu_range, 1)) {
734b478b782SLai Jiangshan /*
735b478b782SLai Jiangshan * Keep the 'A' override for percpu symbols to
736b478b782SLai Jiangshan * ensure consistent behavior compared to older
737f2df3f65SPaulo Marques * versions of this tool.
7381d48f8feSMasahiro Yamada */
739f2df3f65SPaulo Marques table[i]->sym[0] = 'A';
740f2df3f65SPaulo Marques table[i]->percpu_absolute = true;
741f2df3f65SPaulo Marques }
742f2df3f65SPaulo Marques }
7438d605269SMasahiro Yamada
744f2df3f65SPaulo Marques /* find the minimum non-absolute symbol address */
record_relative_base(void)7451da177e4SLinus Torvalds static void record_relative_base(void)
746c6bda7c9SRusty Russell {
747c6bda7c9SRusty Russell unsigned int i;
748c6bda7c9SRusty Russell
749c6bda7c9SRusty Russell for (i = 0; i < table_cnt; i++)
750c6bda7c9SRusty Russell if (!symbol_absolute(table[i])) {
7518d605269SMasahiro Yamada /*
7528c996940SArd Biesheuvel * The table is sorted by address.
7538c996940SArd Biesheuvel * Take the first non-absolute symbol value.
7548c996940SArd Biesheuvel */
7558c996940SArd Biesheuvel relative_base = table[i]->addr;
7568c996940SArd Biesheuvel return;
7578d605269SMasahiro Yamada }
7581a7c8d24SMasahiro Yamada }
7598c996940SArd Biesheuvel
main(int argc,char ** argv)760c6bda7c9SRusty Russell int main(int argc, char **argv)
761c6bda7c9SRusty Russell {
7622213e9a6SArd Biesheuvel while (1) {
7632213e9a6SArd Biesheuvel static const struct option long_options[] = {
7642213e9a6SArd Biesheuvel {"all-symbols", no_argument, &all_symbols, 1},
7652213e9a6SArd Biesheuvel {"absolute-percpu", no_argument, &absolute_percpu, 1},
7662213e9a6SArd Biesheuvel {},
7672213e9a6SArd Biesheuvel };
7688d605269SMasahiro Yamada
769f34ea029SMasahiro Yamada int c = getopt_long(argc, argv, "", long_options, NULL);
770f34ea029SMasahiro Yamada
771f34ea029SMasahiro Yamada if (c == -1)
772f34ea029SMasahiro Yamada break;
7738d605269SMasahiro Yamada if (c != 0)
774f34ea029SMasahiro Yamada usage();
775f34ea029SMasahiro Yamada }
7762213e9a6SArd Biesheuvel
7772213e9a6SArd Biesheuvel if (optind >= argc)
778b3dbb4ecSPaulo Marques usage();
7791da177e4SLinus Torvalds
780aa221f2eSMasahiro Yamada read_map(argv[optind]);
78192e74fb6SMasahiro Yamada shrink_table();
782aa221f2eSMasahiro Yamada if (absolute_percpu)
783aa221f2eSMasahiro Yamada make_percpus_absolute();
784aa221f2eSMasahiro Yamada sort_symbols();
785aa221f2eSMasahiro Yamada record_relative_base();
786aa221f2eSMasahiro Yamada optimize_token_table();
787aa221f2eSMasahiro Yamada write_src();
788aa221f2eSMasahiro Yamada
789aa221f2eSMasahiro Yamada return 0;
790aa221f2eSMasahiro Yamada }
791aa221f2eSMasahiro Yamada