Compile error when use HTTPClient.h with SKD builded by esp32 arduino lib builder

[lexfee]

Board

ESP32 WROOM32-E

Device Description

esp32dev

Hardware Configuration

N/A

Version

v2.0.2

IDE Name

Plaatformio

Operating System

Windows 10

Flash frequency

40 Mhz

PSRAM enabled

no

Upload speed

921600

Description

I was trying to use esp32-arduino-lib-builder to build a customer Arduino SDK. However, the project can not build if I use the SDK built by the lib-builder along with HTTPClient.h. I use the BasicHttpClient example below and get a bunch of errors about "undefined reference to mbedtls_ssl******". Regarding the esp32-arduino-lib-builder, I changed nothing, just use the default sdkconfig setting, and use ./build.sh to build, and copy the files from "out" to ".platformio\packages\framework-arduinoespressif32". I can build other examples, e.g. WebUpdate.ino. So far, it seems the problem happens to HTTPClient.h or WiFiClientSecure.h along with customer SDK from lib builder. the project can be built if I switch back to the original arduino-esp32 SDK.

Those undefined reference are in tools/sdk/esp32/include/mbedtls/mbedtls/include/mbedtls/ssl.h. I also tried #include <mbedtls/ssl.h>, but the result is the same.

I also tried to copy the original sdkconfig from arduino-esp32/tools/sdk/esp32/ and replace the sdkconfig.esp32, it won't work. Still got the same error. Any settings I need to turn on?

Sketch

/**
 * BasicHTTPClient.ino
 *
 *  Created on: 24.05.2015
 *
 */

#include <Arduino.h>

#include <WiFi.h>
#include <WiFiMulti.h>

#include <HTTPClient.h>

#define USE_SERIAL Serial

WiFiMulti wifiMulti;

/*
const char* ca = \
"-----BEGIN CERTIFICATE-----\n" \
"MIIEkjCCA3qgAwIBAgIQCgFBQgAAAVOFc2oLheynCDANBgkqhkiG9w0BAQsFADA/\n" \
"MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT\n" \
"DkRTVCBSb290IENBIFgzMB4XDTE2MDMxNzE2NDA0NloXDTIxMDMxNzE2NDA0Nlow\n" \
"SjELMAkGA1UEBhMCVVMxFjAUBgNVBAoTDUxldCdzIEVuY3J5cHQxIzAhBgNVBAMT\n" \
"GkxldCdzIEVuY3J5cHQgQXV0aG9yaXR5IFgzMIIBIjANBgkqhkiG9w0BAQEFAAOC\n" \
"AQ8AMIIBCgKCAQEAnNMM8FrlLke3cl03g7NoYzDq1zUmGSXhvb418XCSL7e4S0EF\n" \
"q6meNQhY7LEqxGiHC6PjdeTm86dicbp5gWAf15Gan/PQeGdxyGkOlZHP/uaZ6WA8\n" \
"SMx+yk13EiSdRxta67nsHjcAHJyse6cF6s5K671B5TaYucv9bTyWaN8jKkKQDIZ0\n" \
"Z8h/pZq4UmEUEz9l6YKHy9v6Dlb2honzhT+Xhq+w3Brvaw2VFn3EK6BlspkENnWA\n" \
"a6xK8xuQSXgvopZPKiAlKQTGdMDQMc2PMTiVFrqoM7hD8bEfwzB/onkxEz0tNvjj\n" \
"/PIzark5McWvxI0NHWQWM6r6hCm21AvA2H3DkwIDAQABo4IBfTCCAXkwEgYDVR0T\n" \
"AQH/BAgwBgEB/wIBADAOBgNVHQ8BAf8EBAMCAYYwfwYIKwYBBQUHAQEEczBxMDIG\n" \
"CCsGAQUFBzABhiZodHRwOi8vaXNyZy50cnVzdGlkLm9jc3AuaWRlbnRydXN0LmNv\n" \
"bTA7BggrBgEFBQcwAoYvaHR0cDovL2FwcHMuaWRlbnRydXN0LmNvbS9yb290cy9k\n" \
"c3Ryb290Y2F4My5wN2MwHwYDVR0jBBgwFoAUxKexpHsscfrb4UuQdf/EFWCFiRAw\n" \
"VAYDVR0gBE0wSzAIBgZngQwBAgEwPwYLKwYBBAGC3xMBAQEwMDAuBggrBgEFBQcC\n" \
"ARYiaHR0cDovL2Nwcy5yb290LXgxLmxldHNlbmNyeXB0Lm9yZzA8BgNVHR8ENTAz\n" \
"MDGgL6AthitodHRwOi8vY3JsLmlkZW50cnVzdC5jb20vRFNUUk9PVENBWDNDUkwu\n" \
"Y3JsMB0GA1UdDgQWBBSoSmpjBH3duubRObemRWXv86jsoTANBgkqhkiG9w0BAQsF\n" \
"AAOCAQEA3TPXEfNjWDjdGBX7CVW+dla5cEilaUcne8IkCJLxWh9KEik3JHRRHGJo\n" \
"uM2VcGfl96S8TihRzZvoroed6ti6WqEBmtzw3Wodatg+VyOeph4EYpr/1wXKtx8/\n" \
"wApIvJSwtmVi4MFU5aMqrSDE6ea73Mj2tcMyo5jMd6jmeWUHK8so/joWUoHOUgwu\n" \
"X4Po1QYz+3dszkDqMp4fklxBwXRsW10KXzPMTZ+sOPAveyxindmjkW8lGy+QsRlG\n" \
"PfZ+G6Z6h7mjem0Y+iWlkYcV4PIWL1iwBi8saCbGS5jN2p8M+X+Q7UNKEkROb3N6\n" \
"KOqkqm57TH2H3eDJAkSnh6/DNFu0Qg==\n" \
"-----END CERTIFICATE-----\n";
*/

void setup()
{

  USE_SERIAL.begin(115200);

  USE_SERIAL.println();
  USE_SERIAL.println();
  USE_SERIAL.println();

  for (uint8_t t = 4; t > 0; t--)
  {
    USE_SERIAL.printf("[SETUP] WAIT %d...\n", t);
    USE_SERIAL.flush();
    delay(1000);
  }

  wifiMulti.addAP("SSID", "PASSWORD");
}

void loop()
{
  // wait for WiFi connection
  if ((wifiMulti.run() == WL_CONNECTED))
  {

    HTTPClient http;

    USE_SERIAL.print("[HTTP] begin...\n");
    // configure traged server and url
    // http.begin("https://www.howsmyssl.com/a/check", ca); //HTTPS
    http.begin("http://example.com/index.html"); // HTTP

    USE_SERIAL.print("[HTTP] GET...\n");
    // start connection and send HTTP header
    int httpCode = http.GET();

    // httpCode will be negative on error
    if (httpCode > 0)
    {
      // HTTP header has been send and Server response header has been handled
      USE_SERIAL.printf("[HTTP] GET... code: %d\n", httpCode);

      // file found at server
      if (httpCode == HTTP_CODE_OK)
      {
        String payload = http.getString();
        USE_SERIAL.println(payload);
      }
    }
    else
    {
      USE_SERIAL.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
    }

    http.end();
  }

  delay(5000);
}

Debug Message

> Executing task in folder FLIPS: C:\Users\deary\.platformio\penv\Scripts\platformio.exe run <

Processing esp32dev (platform: https://github.com/platformio/platform-espressif32.git#feature/arduino-upstream; board: esp32dev; framework: arduino)
------------------------------------------------------------------------------------------------------------------------------------------------Verbose mode can be enabled via `-v, --verbose` option
CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/esp32dev.html
PLATFORM: Espressif 32 (3.3.1+sha.3784198) > Espressif ESP32 Dev Module
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
DEBUG: Current (esp-prog) External (esp-prog, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, 
olimex-jtag-tiny, tumpa)
PACKAGES:
 - framework-arduinoespressif32 0.0.0
 - tool-esptoolpy 1.30100.210531 (3.1.0)
 - toolchain-xtensa-esp32 8.4.0+2021r1
LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
LDF Modes: Finder ~ chain, Compatibility ~ soft
Found 34 compatible libraries
Scanning dependencies...
Dependency Graph
|-- <ArduinoJson> 6.19.2
|-- <HTTPClient> 2.0.0
|   |-- <WiFi> 2.0.0
|   |-- <WiFiClientSecure> 2.0.0
|   |   |-- <WiFi> 2.0.0
|-- <WiFi> 2.0.0
|-- <WiFiManager> 2.0.5-beta
|   |-- <DNSServer> 2.0.0
|   |   |-- <WiFi> 2.0.0
|   |-- <ESPmDNS> 2.0.0
|   |   |-- <WiFi> 2.0.0
|   |-- <Update> 2.0.0
|   |-- <WebServer> 2.0.0
|   |   |-- <WiFi> 2.0.0
|   |   |-- <FS> 2.0.0
|   |-- <WiFi> 2.0.0
|-- <Wire> 2.0.0
Building in release mode
Compiling .pio\build\esp32dev\src\main.cpp.o
Linking .pio\build\esp32dev\firmware.elf
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z8ssl_initP17sslclient_context+0x0): undefined reference to `mbedtls_ssl_init'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z8ssl_initP17sslclient_context+0x4): undefined reference to `mbedtls_ssl_config_init'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x48): undefined reference to `mbedtls_net_recv'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x4c): undefined reference to `mbedtls_net_send'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x5c): undefined reference to `mbedtls_ssl_config_defaults'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x60): undefined reference to `mbedtls_ssl_conf_alpn_protocols'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x64): undefined reference to `mbedtls_ssl_conf_authmode'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x68): undefined reference to `mbedtls_ssl_conf_psk'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x6c): undefined reference to `mbedtls_ssl_conf_own_cert'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x70): undefined reference to `mbedtls_ssl_set_hostname'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x74): undefined reference to `mbedtls_ssl_conf_rng'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x78): undefined reference to `mbedtls_ssl_setup'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x7c): undefined reference to `mbedtls_ssl_set_bio'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x80): undefined reference to `mbedtls_ssl_handshake'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x88): undefined reference to `mbedtls_ssl_get_record_expansion'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z16start_ssl_clientP17sslclient_contextPKcjiS2_bS2_S2_S2_S2_bPS2_+0x8c): undefined reference to `mbedtls_ssl_get_verify_result'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z15stop_ssl_socketP17sslclient_contextPKcS2_S2_+0x0): undefined reference to `mbedtls_ssl_free'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z15stop_ssl_socketP17sslclient_contextPKcS2_S2_+0x4): undefined reference to `mbedtls_ssl_config_free'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z12data_to_readP17sslclient_context+0x4): undefined reference to `mbedtls_ssl_read'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z12data_to_readP17sslclient_context+0x8): undefined reference to `mbedtls_ssl_get_bytes_avail'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o):(.literal._Z13send_ssl_dataP17sslclient_contextPKhj+0x4): undefined reference to `mbedtls_ssl_write'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o): in function `ssl_init(sslclient_context*)':
C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:51: undefined reference to `mbedtls_ssl_init'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:52: undefined reference to `mbedtls_ssl_config_init'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o): in function `start_ssl_client(sslclient_context*, char const*, unsigned int, int, 
char const*, bool, char const*, char const*, char const*, char const*, bool, char const**)':
C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:140: undefined reference to `mbedtls_ssl_config_defaults'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:140: undefined reference to `mbedtls_ssl_conf_alpn_protocols'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:140: undefined reference to `mbedtls_ssl_conf_authmode'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:173: undefined reference to `mbedtls_ssl_conf_authmode'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:228: undefined reference to `mbedtls_ssl_conf_ca_chain'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:203: undefined reference to `mbedtls_ssl_conf_psk'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:213: undefined reference to `mbedtls_ssl_conf_own_cert'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:218: undefined reference to `mbedtls_ssl_set_hostname'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:218: undefined reference to `mbedtls_ssl_conf_rng'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:221: undefined reference to `mbedtls_ssl_setup'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:221: undefined reference to `mbedtls_ssl_set_bio'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:221: undefined reference to `mbedtls_ssl_handshake'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:245: undefined reference to `mbedtls_ssl_get_record_expansion'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:246: undefined reference to `mbedtls_ssl_get_verify_result'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o): in function `stop_ssl_socket(sslclient_context*, char const*, char const*, char const*)':
C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:292: undefined reference to `mbedtls_ssl_free'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:293: undefined reference to `mbedtls_ssl_config_free'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o): in function `data_to_read(sslclient_context*)':
C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:294: undefined reference to `mbedtls_ssl_read'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:300: undefined reference to `mbedtls_ssl_get_bytes_avail'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o): in function `send_ssl_data(sslclient_context*, unsigned char const*, unsigned int)':
C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:367: undefined reference to `mbedtls_ssl_write'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(ssl_client.cpp.o): in function `get_ssl_receive(sslclient_context*, unsigned char*, int)':
C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/ssl_client.cpp:384: undefined reference to `mbedtls_ssl_read'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(esp_crt_bundle.c.o):(.literal.esp_crt_bundle_attach+0x10): undefined reference to `mbedtls_ssl_conf_ca_chain'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(esp_crt_bundle.c.o):(.literal.esp_crt_bundle_attach+0x14): undefined reference to `mbedtls_ssl_conf_verify'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: .pio\build\esp32dev\lib8d8\libWiFiClientSecure.a(esp_crt_bundle.c.o): in function `esp_crt_bundle_attach':
C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/esp_crt_bundle.c:196: undefined reference to `mbedtls_ssl_conf_ca_chain'
c:/users/deary/.platformio/packages/toolchain-xtensa-esp32/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld.exe: C:/Users/deary/.platformio/packages/framework-arduinoespressif32/libraries/WiFiClientSecure/src/esp_crt_bundle.c:197: undefined reference to `mbedtls_ssl_conf_verify'
collect2.exe: error: ld returned 1 exit status
*** [.pio\build\esp32dev\firmware.elf] Error 1
========================================================= [FAILED] Took 27.03 seconds =========================================================
The terminal process "C:\Users\deary\.platformio\penv\Scripts\platformio.exe 'run'" terminated with exit code: 1.

Other Steps to Reproduce

No response

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[me-no-dev]

the errors point that the linker was not able to find the functions. It's not a preprocessor error, so you can not fix it by include :)

The issue points that you either had mbedtls disabled in the lib-builder or that the lib did not copy over (was not found).

[Jason2866]

You should use the latest available toolchains for platformio (....patch2)
And with eesptool v3.1 you will have issues too (linking).
Espressif just released esptool.py v.3.3 today

[lexfee]

I don't know which setting controls the mbedtls on and off, there are lots of setting related to mbedtls. But the thing is I copied the original sdkconfig, I assume all important settings should be on by default. I check the files inside the tools/sdk/esp32, the total file number is the same as the original SDK.

I tried using the latest esptool 3.3 but the result is the same. The toolchains used is "8.4.0+2021r1".

Anything else I should try?

[me-no-dev]

honestly it should have worked. It is how we build all libs (AMF it's even done automatically by CI in the lib-builder repo) so we know it works. Question is what is different on your side?

[Jason2866]

@lexfee The Platformio platform is outdated. Try

https://github.com/Jason2866/platform-espressif32.git

[lexfee]

I think I identified the broken file. It is the libmbedtls.a causing the problem. The file created by lib-builder is only 104kb, while the original file is 1203kb. If I replace this file with the original one, all of the problems are gone. The project can be built, and my code is working. So the lib-builder did create the libmbedtls.a file but somehow in a much smaller size. There is no error when I use ./build.sh.

The esp-idf was installed using ./tools/install-esp-idf.sh. I checked the files inside esp-idf/components/mbedtls, to me, it seems all the files are there, including a submodule (mbedtls).

[Jason2866]

@lexfee So "something" with your Lib builder setup is wrong. The Github Actions lib builder is generating the file libmbedtls.a correctly.

[lexfee]

The only setting would be menuconfig which I did not touch yet. The installation of modules and submodules are all done automatically. I am using WSL 2, so I also tried to reset the Ubuntu-18.04 and start over., which did not help. Any setting for mbedtls I should check? It is looks like all files are good except the libmbedtls.a. Any log I should check?

[Jason2866]

Which branch do you use from the Arduino lib builder?
The builds i make are from branch /esp32-s3-support. Not saying master branch is not working (i just do not use to make builds from, so idk).
Tbh, no idea what to check. I use github actions for building the framework.
Maybe this is easier for you too. You can just clone my fork. After a successfull run a complete framework is released. https://github.com/Jason2866/esp32-arduino-lib-builder

[VojtechBartoska]

Hello,

as there was no answer in more than 14 days, I'm closing the issue as expired to keep our backlog manageable.

If it's still needed, please reopen the issue.

Thanks for understanding.