default example build fails

[tdjastrzebski]

Today I attempted to use new mbed-tool for the first time ever. I tried the most trivial test I could think of.
mbed-tools version 7.32.0 Probably pthreads is missing.

mbed-tools new .
mbed-tools compile --toolchain GCC_ARM --mbed-target K64F

$ mbed-tools compile --toolchain GCC_ARM --mbed-target K64F
Configuring project and generating build system...
-- The C compiler identification is GNU 10.2.1
-- The CXX compiler identification is GNU 10.2.1
-- The ASM compiler identification is GNU
-- Found assembler: C:/Program Files (x86)/GNU Arm Embedded Toolchain/10 2020-q4-major/bin/arm-none-eabi-gcc.exe
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/Program Files (x86)/GNU Arm Embedded Toolchain/10 2020-q4-major/bin/arm-none-eabi-gcc.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: C:/Program Files (x86)/GNU Arm Embedded Toolchain/10 2020-q4-major/bin/arm-none-eabi-g++.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found Python3: C:/Program Files/Python36/python.exe (found version "3.6.8") found components: Interpreter 
-- Checking for Python package prettytable -- found
-- Checking for Python package future -- found
-- Checking for Python package jinja2 -- found
-- Checking for Python package intelhex -- found
-- Found Python: C:/Program Files/Python36/python.exe (found version "3.6.8") found components: Interpreter 
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - not found
-- Check if compiler accepts -pthread
-- Check if compiler accepts -pthread - no
-- Could NOT find Threads (missing: Threads_FOUND) 
-- Could NOT find Threads (missing: Threads_FOUND) 
CMake Error at CMakeLists.txt:18 (mbed_configure_app_target):
  mbed_configure_app_target Function invoked with incorrect arguments for
  function named: mbed_configure_app_target

CMake Error at CMakeLists.txt:20 (mbed_set_mbed_target_linker_script):
  Unknown CMake command "mbed_set_mbed_target_linker_script".

-- Configuring incomplete, errors occurred!
See also "C:/Temp/mb2/cmake_build/K64F/develop/GCC_ARM/CMakeFiles/CMakeOutput.log".
See also "C:/Temp/mb2/cmake_build/K64F/develop/GCC_ARM/CMakeFiles/CMakeError.log".
ERROR: CMake invocation failed!

More information may be available by using the command line option '-v'.

[ladislas]

the issue is not with pthread, the error is cmake related, as written in your message:

CMake Error at CMakeLists.txt:20 (mbed_set_mbed_target_linker_script):
  Unknown CMake command "mbed_set_mbed_target_linker_script".

mbed_set_mbed_target_linker_script was removed in commit 0f733baeae5a8d4cd0214835d2520db38c5988ff in February.

[tdjastrzebski]

Thank you @ladislas. Does it mean this tool is currently broken?

[ladislas]

No it means the example CMakeLists.txt you're using is out of date.

Try the blinky example: https://github.com/ARMmbed/mbed-os-example-blinky

[tdjastrzebski]

Well, this example has been created with this tool by executing mbed-tools new ., it contains nothing but simple main.cpp and CMakeLists.txt files. That makes me believe the problem is somewhere in the tool itself.

/* mbed Microcontroller Library
 * Copyright (c) 2021 ARM Limited
 * SPDX-License-Identifier: Apache-2.0
 */

#include "mbed.h"

int main()
{
    printf("Hello, Mbed!\n");
    return 0;
}

# Copyright (c) 2021 ARM Limited. All rights reserved.
# SPDX-License-Identifier: Apache-2.0

cmake_minimum_required(VERSION 3.19.0)

set(MBED_PATH ${CMAKE_CURRENT_SOURCE_DIR}/mbed-os CACHE INTERNAL "")
set(MBED_CONFIG_PATH ${CMAKE_CURRENT_SOURCE_DIR}/.mbedbuild CACHE INTERNAL "")
set(APP_TARGET )

include(${MBED_PATH}/tools/cmake/app.cmake)

add_subdirectory(${MBED_PATH})

add_executable(${APP_TARGET}
    main.cpp
)

mbed_configure_app_target(${APP_TARGET})

mbed_set_mbed_target_linker_script(${APP_TARGET})

project(${APP_TARGET})

target_link_libraries(${APP_TARGET} mbed-os)

mbed_set_post_build(${APP_TARGET})

option(VERBOSE_BUILD "Have a verbose build process")
if(VERBOSE_BUILD)
    set(CMAKE_VERBOSE_MAKEFILE ON)
endif()

[ladislas]

You need to compare the two CMakeLists.txt, look at this one: https://github.com/ARMmbed/mbed-os-example-blinky/blob/master/CMakeLists.txt

As you can see yours is using mbed_set_mbed_target_linker_script while the blinky example is not.

If there is something wrong with the tool it's with the new command templates. Try using the blinky example cmake file.

[ladislas]

Actually nothing is wrong, I've just tried the tools and it works perfectly. The CMakeLists.txt is the right one and it compiles correctly. Try running:

python3 -m pip install -U --user mbed-tools

with or without --user depending on how you installed it.

[ladislas]

[tdjastrzebski]

I updated mbed-tools, started once again from scratch and this time it worked. I have to say I am puzzled since I already had the latest version 7.32. Definitely CMakeLists.txt was broken. It does not compile with "requires": ["bare-metal"] in mbed_app.json but maybe this option is no longer available. Anyway, it is a different problem. Thank you.

[0xc0170]

Should this be closed as resolved? I'll close it now

Baremetal is available via mbed-baremetal CMake target