通义灵码提问"RSA验签"示例代码输出问题

我向通义灵码提问需要一个mbedtls库的RSA公钥验签示例代码，通义灵码输出到公钥数据部分卡死，这是什么问题呢？
输出代码如下：

#include <stdio.h>
#include <string.h>
#include <mbedtls/platform.h>
#include <mbedtls/debug.h>
#include <mbedtls/entropy.h>
#include <mbedtls/ctr_drbg.h>
#include <mbedtls/pk.h>
#include <mbedtls/md.h>
#include <mbedtls/rsa.h>

int main() {
    // 初始化 Mbed TLS 库
    mbedtls_platform_setup(NULL);

    // 创建熵源和随机数生成器上下文
    mbedtls_entropy_context entropy;
    mbedtls_ctr_drbg_context ctr_drbg;

    mbedtls_entropy_init(&entropy);
    mbedtls_ctr_drbg_init(&ctr_drbg);

    if (mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy, (const unsigned char *) "my seed", 9)) {
        printf("Failed to seed ctr_drbg\n");
        goto exit;
    }

    // 创建公钥上下文
    mbedtls_pk_context pk;
    mbedtls_pk_init(&pk);

    // 公钥数据（PEM 格式）
    const char *public_key_pem = 
        "-----BEGIN PUBLIC KEY-----\n"
        "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA77oXvZ+R5WJUHqXsDfLl\n"
        "uFyNz3B3t55b45eOQa2r12345678901234567890123456789012345678901234\n"
        "5678901234567890123456789012345678901234567890123456789012345678\n"
        "901234567890123456789012345678901234567890123456789012345678901\n"
        "234567890123456789012345678901234567890123456789012345678901234\n"
        "5678901234567890123456789012345678901234567890123456789012345678\n"
        "901234567890123456789012345678901234567890123456789012345678901\n"
        "234567890123456789012345678901234567890123456789012345678901234\n"
        "5678901234567890123456789012345678901234567890123456789012345678\n"
        "901234567890123456789012345678901234567890123456789012345678901\n"
        "234567890123456789012345678901234567890123456789012345678901234\n"
        "5678901234567890123456789012345678901234567890123456789012345678\n"
        "901234567890123456789012345678901234567890123456789012345678901\n"
        "234567890123456789012345678901234567890123456789012345678901234\n"
        "5678901234567890123456789012345678901234567890123456789012345678\n"
        "901234567890123456789012345678901234567890123456789012345678901\n"
        "234567890123456789012345678901234567890123456789012345678901234\n"
        "5678901234567890123456789012345678901234567890123456789012345678\n"
        "901234567890123456789012345678901234567890123456789012345678901\n"
        "234567890123456789012345678901234567890123456789012345678901234\n"
        "5678901234567890123456789012345678901234567890123456789012345678\n"
        "901234567890123456789012345678901234567890123456789012345678901\n"
        "234567890123456789012345678901234567890123456789012345678901234\n"
        "5678901234567890123456789012345678901234567890123456789012345678\n"
        "901234567890123456789012345678901234567890123456789012345678901\n"
        "234567890123456789012345678901234