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}

 1#include "symbol/kallsyms.h"
 2#include <stdio.h>
 3#include <stdlib.h>
 4
 
 
 
 
 
 
 5int kallsyms__parse(const char *filename, void *arg,
 6		    int (*process_symbol)(void *arg, const char *name,
 7					  char type, u64 start))
 8{
 9	char *line = NULL;
10	size_t n;
11	int err = -1;
12	FILE *file = fopen(filename, "r");
13
14	if (file == NULL)
15		goto out_failure;
16
17	err = 0;
18
19	while (!feof(file)) {
20		u64 start;
21		int line_len, len;
22		char symbol_type;
23		char *symbol_name;
24
25		line_len = getline(&line, &n, file);
26		if (line_len < 0 || !line)
27			break;
28
29		line[--line_len] = '\0'; /* \n */
30
31		len = hex2u64(line, &start);
32
33		len++;
34		if (len + 2 >= line_len)
35			continue;
36
37		symbol_type = line[len];
38		len += 2;
39		symbol_name = line + len;
40		len = line_len - len;
41
42		if (len >= KSYM_NAME_LEN) {
43			err = -1;
44			break;
45		}
46
47		err = process_symbol(arg, symbol_name, symbol_type, start);
48		if (err)
49			break;
50	}
51
52	free(line);
53	fclose(file);
54	return err;
55
56out_failure:
57	return -1;
58}