模块加载失败unknown symbol: memset

[SoyBeanMilkx]

内核日志：
[26821.176645] [+] KP D load_module_path: /data/local/tmp/mod_main.kpm
[26821.176674] [+] KP D load_module_path: module size: 8668
[26821.176714] [+] KP D loading module:
[26821.176714] [+] KP D name: IO Redirect
[26821.176715] [+] KP D version: 1.0.0
[26821.176716] [+] KP D license: (null)
[26821.176716] [+] KP D author: yuuki
[26821.176717] [+] KP D description: Prevent your phone from being maliciously formatted
[26821.176730] [+] KP I alloc module size: 3935
[26821.176735] [+] KP D final section addresses:
[26821.176735] [+] KP D .text ffffffe4ec1c3130 5e4
[26821.176736] [+] KP D .rodata.str1.8 ffffffe4ec1c4130 325
[26821.176737] [+] KP D .kpm.info ffffffe4ec1c4455 6c
[26821.176738] [+] KP D .data ffffffe4ec1c5130 10
[26821.176738] [+] KP D .kpm.ctl0 ffffffe4ec1c5140 8
[26821.176739] [+] KP D .kpm.exit ffffffe4ec1c5148 8
[26821.176739] [+] KP D .kpm.init ffffffe4ec1c5150 8
[26821.176740] [+] KP D .bss ffffffe4ec1c5158 50
[26821.176740] [+] KP D .symtab ffffffe4ec1c6130 648
[26821.176741] [+] KP D .strtab ffffffe4ec1c6896 1cf
[26821.176743] [-] KP E unknown symbol: memset

代码：
#include "data_parse.h"

char *my_strdup(const char *src) {
if (src == NULL) {
return NULL;
}

size_t len = strlen(src) + 1;
char *copy = (char*)kf_vmalloc(len);
if (copy == NULL) {
    return NULL;
}

memcpy(copy, src, len);
return copy;

}

char *my_strtok(char *str, const char *delim) {
static char *saved_str = NULL;
char *start = NULL;
char *end = NULL;

if (str != NULL) {
    saved_str = str;
}

if (saved_str == NULL) {
    return NULL;
}

start = saved_str;
while (*start && strchr(delim, *start) != NULL) {
    start++;
}

if (*start == '\0') {
    saved_str = NULL;
    return NULL;
}

end = start;
while (*end && strchr(delim, *end) == NULL) {
    end++;
}

if (*end != '\0') {
    *end = '\0';
    saved_str = end + 1;
} else {
    saved_str = NULL;
}

return start;

}

void parsePaths(const char *input, char source_path[][PATH_MAX], char redirect_path[][PATH_MAX], int *line_count) {
char *temp = my_strdup(input);
char *line = my_strtok(temp, "\n");
*line_count = 0;

while (line != NULL) {
    char *arrow = strstr(line, " -> ");
    if (arrow != NULL) {
        // 分隔符前后的路径
        size_t path_len = arrow - line;
        strncpy(source_path[*line_count], line, path_len);
        source_path[*line_count][path_len] = '\0'; // 确保字符串以 '\0' 结尾
        strncpy(redirect_path[*line_count], arrow + 4, PATH_MAX - 1);
        redirect_path[*line_count][PATH_MAX - 1] = '\0'; // 确保字符串以 '\0' 结尾

        (*line_count)++;
    }
    line = my_strtok(NULL, "\n");
}
kf_vfree(temp);

}

//static long mod_control0(const char *args, char *__user out_msg, int outlen) {
pr_info("[yuuki] kpm hello control0, args: %s\n", args);

char source_paths[MAX_LINES][PATH_MAX] = {0};
char redirect_paths[MAX_LINES][PATH_MAX] = {0};
int line_count = 0;

// 解析输入
parsePaths(args, source_paths, redirect_paths, &line_count);

// 输出结果
for (int i = 0; i < line_count; i++) {
    pr_info("[yuuki] source_path: %s redirect_path: %s\n", source_paths[i], redirect_paths[i]);
}

//control_internal(true);

return 0;

}

我都没有使用到memset这个函数，但是加载失败提示unknown symbol: memset
我尝试使用void *(*kf_memset)(void *s, int c, size_t count) = NULL;
kf_memset = (typeof(kf_memset))kallsyms_lookup_name("memset");依然会报这个错误，请问大佬们这个问题如何解决

[pomelohan]

你自己编译器优化的问题