1#include "symbol/kallsyms.h"
2#include <stdio.h>
3#include <stdlib.h>
4
5u8 kallsyms2elf_type(char type)
6{
7	type = tolower(type);
8	return (type == 't' || type == 'w') ? STT_FUNC : STT_OBJECT;
9}
10
11int kallsyms__parse(const char *filename, void *arg,
12		    int (*process_symbol)(void *arg, const char *name,
13					  char type, u64 start))
14{
15	char *line = NULL;
16	size_t n;
17	int err = -1;
18	FILE *file = fopen(filename, "r");
19
20	if (file == NULL)
21		goto out_failure;
22
23	err = 0;
24
25	while (!feof(file)) {
26		u64 start;
27		int line_len, len;
28		char symbol_type;
29		char *symbol_name;
30
31		line_len = getline(&line, &n, file);
32		if (line_len < 0 || !line)
33			break;
34
35		line[--line_len] = '\0'; /* \n */
36
37		len = hex2u64(line, &start);
38
39		len++;
40		if (len + 2 >= line_len)
41			continue;
42
43		symbol_type = line[len];
44		len += 2;
45		symbol_name = line + len;
46		len = line_len - len;
47
48		if (len >= KSYM_NAME_LEN) {
49			err = -1;
50			break;
51		}
52
53		err = process_symbol(arg, symbol_name, symbol_type, start);
54		if (err)
55			break;
56	}
57
58	free(line);
59	fclose(file);
60	return err;
61
62out_failure:
63	return -1;
64}
65