ESP32 failed build on Platform.io: object_pool.iop.S.o not found

[flammel1007]

Hello,

I'm currently trying to create the VT example on an ESP32. For this I followed the basic tutorial, which didn't cause any problems during the build. When I then added the ESP32 example with the object_pool, the following error occurred during the build:

Processing esp32dev (platform: espressif32; board: esp32dev; framework: espidf)
-----------------------------------------------------------------------------------------------------------------------------------------Verbose mode can be enabled via -v, --verbose option
CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/esp32dev.html
PLATFORM: Espressif 32 (6.7.0) > Espressif ESP32 Dev Module
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
DEBUG: Current (cmsis-dap) External (cmsis-dap, esp-bridge, 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-espidf @ 3.50201.240515 (5.2.1)
• tool-cmake @ 3.16.4
• tool-esptoolpy @ 1.40501.0 (4.5.1)
• tool-idf @ 1.0.1
• tool-mconf @ 1.4060000.20190628 (406.0.0)
• tool-ninja @ 1.9.0
• tool-openocd-esp32 @ 2.1100.20220706 (11.0)
• tool-riscv32-esp-elf-gdb @ 11.2.0+20220823
• tool-xtensa-esp-elf-gdb @ 11.2.0+20230208
• toolchain-esp32ulp @ 1.23500.220830 (2.35.0)
• toolchain-xtensa-esp-elf @ 13.2.0+20230928
  Reading CMake configuration...
  Warning! Flash memory size mismatch detected. Expected 4MB, found 2MB!
  Please select a proper value in your sdkconfig.defaults or via the menuconfig target!
  LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
  LDF Modes: Finder ~ chain, Compatibility ~ soft
  Found 1 compatible libraries
  Scanning dependencies...
  Dependency Graph
  |-- AgIsoStack++ @ 1.0.0+sha.a757178
  Building in debug mode
  Compiling .pio\build\esp32dev\src\console_logger.cpp.o
  Compiling .pio\build\esp32dev\src\main.cpp.o
  *** [.pio\build\esp32dev.pio\build\esp32dev\object_pool.iop.S.o] Source .pio\build\esp32dev\object_pool.iop.S' not found, needed by target .pio\build\esp32dev.pio\build\esp32dev\object_pool.iop.S.o'.
  ====================================================== [FAILED] Took 30.22 seconds ======================================================

Environment:
platform = espressif32
board = esp32dev
framework = espidf

Can you please tell me why the object_pool.iop.S.o is not being created?

[GwnDaan]

The error message indicates that you are missing the embedding of the object pool (.iop) file.

The following line in platform.ino is needed to embed the object pool into your ESP32 binary.

AgIsoStack-plus-plus/examples/virtual_terminal/esp32_platformio_object_pool/platformio.ini

Line 16 in 255fd58

board_build.embed_txtfiles = src/object_pool/object_pool.iop

along side the following line in CMakeLists.txt

AgIsoStack-plus-plus/examples/virtual_terminal/esp32_platformio_object_pool/src/CMakeLists.txt

Line 7 in 255fd58

target_add_binary_data(${COMPONENT_TARGET} "object_pool/object_pool.iop" BINARY)

I'll open an PR to clarify this in the tutorial