使用mbedtls加密时报Fault on thread tshell错误

发布于 2021-09-11 15:22:35 浏览：815 订阅该版

```c
 /* send HTTP POST request by simplify request interface, it used to received shorter data */
static int webclient_post_smpl(const char *uri, const char *post_data, size_t data_len)
{
    char *response = RT_NULL;
    char *header = RT_NULL;
    size_t resp_len = 0;
    int index = 0;
    unsigned char *sign = RT_NULL;
    int ret = 0;

const unsigned char *key = "hello";
    webclient_request_header_add(&header, "Accept: application/json\r\n");
    webclient_request_header_add(&header, "Content-Type: application/x-www-form-urlencoded;charset=utf-8\r\n");

/**********************signature***********************************/
    mbedtls_md_context_t ctx;
    const mbedtls_md_info_t *info;
      
    mbedtls_md_init(&ctx);

mbedtls_md_setup(&ctx, MBEDTLS_MD_SHA256, 1);
    ret = mbedtls_md_setup(&ctx, info, 1);
    if (ret != 0) {
        printf("mbedtls_md_setup ret:%d\n",ret);
    }
```
    
    
    
    
```
    Firmware name: rtthread_chip, hardware version: 1.0, software version: 1.0
Fault on thread tshell
===== Thread stack information =====
  addr: 2005cee8    data: 06800000
  addr: 2005ceec    data: 2008ec14
  addr: 2005cef0    data: 2008ec14
  addr: 2005cef4    data: 2c258e40
  addr: 2005cef8    data: 0000003c
  addr: 2005cefc    data: 0c0e5177
  addr: 2005cf00    data: 00000000
  addr: 2005cf04    data: 2c258d6c
  addr: 2005cf08    data: 00000010
  addr: 2005cf0c    data: 2005aab0
  addr: 2005cf10    data: 00000000
  addr: 2005cf14    data: 2008ec78
  addr: 2005cf18    data: 00000000
  addr: 2005cf1c    data: 00000000
  addr: 2005cf20    data: 00000000
  addr: 2005cf24    data: 00000000
  addr: 2005cf28    data: 00000000
  addr: 2005cf2c    data: 2008ec14
  addr: 2005cf30    data: 00000010
  addr: 2005cf34    data: 2005aab0
  addr: 2005cf38    data: 0c0e52b5
  addr: 2005cf3c    data: 0c0e52f3
  addr: 2005cf40    data: 00000000
  addr: 2005cf44    data: 2c258e40
  addr: 2005cf48    data: 2005aac0
  addr: 2005cf4c    data: 0c0ec879
  addr: 2005cf50    data: 3400f3bc
  addr: 2005cf54    data: 200e9fb0
  addr: 2005cf58    data: 3400f3bc
  addr: 2005cf5c    data: 2005aab0
  addr: 2005cf60    data: 2005aabe
  addr: 2005cf64    data: 00000000
  addr: 2005cf68    data: 00000000
  addr: 2005cf6c    data: 00000000
  addr: 2005cf70    data: 00000000
  addr: 2005cf74    data: 00000000
  addr: 2005cf78    data: 00000000
  addr: 2005cf7c    data: 00000000
  addr: 2005cf80    data: 00000000
  addr: 2005cf84    data: 00000000
  addr: 2005cf88    data: 00000000
  addr: 2005cf8c    data: 00000000
  addr: 2005cf90    data: 00000000
  addr: 2005cf94    data: 00000000
  addr: 2005cf98    data: 2c252f90
  addr: 2005cf9c    data: 00000001
  addr: 2005cfa0    data: 80000000
  addr: 2005cfa4    data: 200fd4dc
  addr: 2005cfa8    data: 2c252f90
  addr: 2005cfac    data: 2c25ab38
  addr: 2005cfb0    data: deadbeef
  addr: 2005cfb4    data: 2005aeb2
  addr: 2005cfb8    data: 2005aab0
  addr: 2005cfbc    data: 0c0eb1d9
  addr: 2005cfc0    data: 00000000
  addr: 2005cfc4    data: deadbeef
  addr: 2005cfc8    data: deadbeef
  addr: 2005cfcc    data: deadbeef
  addr: 2005cfd0    data: deadbeef
  addr: 2005cfd4    data: deadbeef
  addr: 2005cfd8    data: deadbeef
  addr: 2005cfdc    data: deadbeef
  addr: 2005cfe0    data: deadbeef
  addr: 2005cfe4    data: 002093c9
====================================
=================== Registers information ====================
  R0 : 2005cf1c  R1 : 00000006  R2 : 00000001  R3 : 00000000
  R12: 00205a65  LR : 0c0d10dd  PC : 00000000  PSR: 00000000
==============================================================
Show more call stack info by run: /opt/gcc-arm-none-eabi-9-2019-q4-major/bin/arm-none-eabi-addr2line -e rtthread_chip.elf -a -f 00000000 0c0d10d8 0c0e5172 0c0e52ee 0c0ec874 0c0eb1d4 
====================== other information =====================
  EXC_RETURN: ffffffac
  tz        : 00000000
  lr        : ffffffac
  psplim    : 2005b000
  conrtol   : 00000000
  R4 : 00000006  R5 : 2005cf1c  R6 : 2c258e40  R7 : 00000001  
  R8 : 0000002d  R9 : 2005cf60  R10: 200e9bcc  R11: 2c2608ec  
==============================================================
Current system tick: 26240
```