diff options
| -rw-r--r-- | scripts/kallsyms.c | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c index 8fb87003d5d..c912137f80e 100644 --- a/scripts/kallsyms.c +++ b/scripts/kallsyms.c @@ -31,14 +31,13 @@ #define KSYM_NAME_LEN 128 - struct sym_entry { unsigned long long addr; unsigned int len; + unsigned int start_pos; unsigned char *sym; }; - static struct sym_entry *table; static unsigned int table_size, table_cnt; static unsigned long long _text, _stext, _etext, _sinittext, _einittext; @@ -198,8 +197,10 @@ static void read_map(FILE *in) exit (1); } } - if (read_symbol(in, &table[table_cnt]) == 0) + if (read_symbol(in, &table[table_cnt]) == 0) { + table[table_cnt].start_pos = table_cnt; table_cnt++; + } } } @@ -502,6 +503,35 @@ static void optimize_token_table(void) optimize_result(); } +static int compare_symbols(const void *a, const void *b) +{ + const struct sym_entry *sa; + const struct sym_entry *sb; + int wa, wb; + + sa = a; + sb = b; + + /* sort by address first */ + if (sa->addr > sb->addr) + return 1; + if (sa->addr < sb->addr) + return -1; + + /* sort by "weakness" type */ + wa = (sa->sym[0] == 'w') || (sa->sym[0] == 'W'); + wb = (sb->sym[0] == 'w') || (sb->sym[0] == 'W'); + if (wa != wb) + return wa - wb; + + /* sort by initial order, so that other symbols are left undisturbed */ + return sa->start_pos - sb->start_pos; +} + +static void sort_symbols(void) +{ + qsort(table, table_cnt, sizeof(struct sym_entry), compare_symbols); +} int main(int argc, char **argv) { @@ -523,6 +553,7 @@ int main(int argc, char **argv) usage(); read_map(stdin); + sort_symbols(); optimize_token_table(); write_src(); |