A template to generate Hello World semihosted application running on QEMU

Generate simple bare-metal Hello World applications that run on QEMU (Arm Cortex-M, Arm Cortex-A 32/64 and RISC-V 32/64 devices).

The project is hosted on GitHub as micro-os-plus/hello-world-qemu-template-xpack, and is also available from npmjs.com as @micro-os-plus/hello-world-qemu-template. As the name implies, is part of the µOS++ project.

Features

This project generates multiple variants of the classical application that prints the Hello World message on standard output.

Both C and C++ are supported, with CMake and meson as build system generators.

The targeted devices are:

Arm Cortex-M0 (ARMv6-M)
Arm Cortex-M7F (ARMv7-M FP)
Arm Cortex-A15 (AArch32)
Arm Cortex-A72 (AArch64 FP)
RISC-V RV32IMAC (32-bit)
RISC-V RV64IMAFDC (64-bit FP)

The template can be instantiated in a terminal, but the intended use was to be integrated into the VS Code xPack Build extension and Eclipse Embedded CDT, to generate new projects.

Prerequisites

A recent xpm, which is a portable Node.js command line application.

npm install --global xpm@latest

If installing over a previous version fails, uninstall first:

npm uninstall --global xpm
npm install --global xpm@latest

For details please follow the instructions in the xPack install page.

User info

Template instantiation via `xpm init`

Instantiating the template can be done via the xpm init --template command, pointing to this xPack.

This command must be invoked in an empty folder, where the project will be generated.

There are two modes, interactive and scriptable (non interactive).

Interactive mode

Starting the tool without defining the target will select the interactive mode and the user can manually enter each choice.

% mkdir -p my-project && cd my-project
% xpm init --template @micro-os-plus/hello-world-qemu-template@latest

Checking package @micro-os-plus/hello-world-qemu-template@latest metadata...
Installing @micro-os-plus/hello-world-qemu-template@1.4.2...
Processing @micro-os-plus/hello-world-qemu-template@1.4.2...

Target? (cortex-m7f, cortex-m0, cortex-a15, cortex-a72, riscv-rv32imac, riscv-rv64imafdc, ?) [cortex-m7f]:
Programming language? (c, cpp, ?) [cpp]:
Build System? (cmake, meson, ?) [cmake]:
Creating the C++ project 'my-project'...
Folder 'cmake' copied.
File 'CMakeLists.txt' generated.
File 'src/main.cpp' copied.
Folder 'include' copied.
Folder 'platform-qemu-cortex-m7f' copied.
File '.vscode/tasks.json' copied.
File '.vscode/settings.json' copied.
File '.clang-format' copied.
File 'README.md' generated.
File 'LICENSE' generated.
File 'package.json' generated.
%

Scriptable mode

When used in non-interactive environments, it is possible to pass all required data on the command line. The only mandatory property is target, all other have defaults.

% mkdir -p my-project && cd my-project
% xpm init --template @micro-os-plus/hello-world-qemu-template@latest --property target=cortex-m7f

Installing @micro-os-plus/hello-world-qemu-template@1.4.2...
Processing @micro-os-plus/hello-world-qemu-template@1.4.2...

Creating the C++ project 'my-project'...
- target=cortex-m7f
- buildGenerator=cmake

Folder 'cmake' copied.
File 'CMakeLists.txt' generated.
File 'src/main.cpp' copied.
Folder 'include' copied.
Folder 'platform-qemu-cortex-m7f' copied.
File '.vscode/tasks.json' copied.
File '.vscode/settings.json' copied.
File '.clang-format' copied.
File 'README.md' generated.
File 'LICENSE' generated.
File 'package.json' generated.
%

Satisfy dependencies

The next step is to install all dependencies, either source packages or binary tools.

This can be automated by issuing the xpm install command in the project folder:

% cd my-project
% xpm install
@my-scope/my-project...
+ @micro-os-plus/devices-qemu-cortexm@4.1.1
+ @micro-os-plus/build-helper@2.9.0
+ @micro-os-plus/architecture-cortexm@6.1.0
+ @xpack-3rd-party/arm-cmsis-core@5.4.0-6
+ @micro-os-plus/semihosting@5.0.0
+ @micro-os-plus/diag-trace@4.0.0
+ @xpack-dev-tools/arm-none-eabi-gcc@11.2.1-1.2.2
+ @xpack-dev-tools/ninja-build@1.10.2-5.1
+ @xpack-dev-tools/qemu-arm@7.0.0-1.1
+ @xpack-dev-tools/cmake@3.20.6-2.1
'xpacks/@micro-os-plus/devices-qemu-cortexm' -> '/Users/ilg/Library/xPacks/@micro-os-plus/devices-qemu-cortexm/4.1.1'
'xpacks/@micro-os-plus/build-helper' -> '/Users/ilg/Library/xPacks/@micro-os-plus/build-helper/2.9.0'
'xpacks/@micro-os-plus/architecture-cortexm' -> '/Users/ilg/Library/xPacks/@micro-os-plus/architecture-cortexm/6.1.0'
'xpacks/@micro-os-plus/semihosting' -> '/Users/ilg/Library/xPacks/@micro-os-plus/semihosting/5.0.0'
'xpacks/@xpack-3rd-party/arm-cmsis-core' -> '/Users/ilg/Library/xPacks/@xpack-3rd-party/arm-cmsis-core/5.4.0-6'
'xpacks/@micro-os-plus/diag-trace' -> '/Users/ilg/Library/xPacks/@micro-os-plus/diag-trace/4.0.0'
'xpacks/@xpack-dev-tools/arm-none-eabi-gcc' -> '/Users/ilg/Library/xPacks/@xpack-dev-tools/arm-none-eabi-gcc/11.2.1-1.2.2'
'xpacks/@xpack-dev-tools/ninja-build' -> '/Users/ilg/Library/xPacks/@xpack-dev-tools/ninja-build/1.10.2-5.1'
'xpacks/@xpack-dev-tools/qemu-arm' -> '/Users/ilg/Library/xPacks/@xpack-dev-tools/qemu-arm/7.0.0-1.1'
'xpacks/@xpack-dev-tools/cmake' -> '/Users/ilg/Library/xPacks/@xpack-dev-tools/cmake/3.20.6-2.1'
'xpacks/.bin/arm-none-eabi-addr2line' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-addr2line'
'xpacks/.bin/qemu-system-arm' -> '../@xpack-dev-tools/qemu-arm/.content/bin/qemu-system-arm'
'xpacks/.bin/ccmake' -> '../@xpack-dev-tools/cmake/.content/bin/ccmake'
'xpacks/.bin/ninja' -> '../@xpack-dev-tools/ninja-build/.content/bin/ninja'
'xpacks/.bin/arm-none-eabi-ar' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-ar'
'xpacks/.bin/qemu-system-aarch64' -> '../@xpack-dev-tools/qemu-arm/.content/bin/qemu-system-aarch64'
'xpacks/.bin/cmake' -> '../@xpack-dev-tools/cmake/.content/bin/cmake'
'xpacks/.bin/arm-none-eabi-as' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-as'
'xpacks/.bin/qemu-system-gnuarmeclipse' -> '../@xpack-dev-tools/qemu-arm/.content/bin/qemu-system-gnuarmeclipse'
'xpacks/.bin/cpack' -> '../@xpack-dev-tools/cmake/.content/bin/cpack'
'xpacks/.bin/arm-none-eabi-as-py3' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-as-py3'
'xpacks/.bin/ctest' -> '../@xpack-dev-tools/cmake/.content/bin/ctest'
'xpacks/.bin/arm-none-eabi-c++' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-c++'
'xpacks/.bin/arm-none-eabi-c++filt' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-c++filt'
'xpacks/.bin/arm-none-eabi-cpp' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-cpp'
'xpacks/.bin/arm-none-eabi-elfedit' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-elfedit'
'xpacks/.bin/arm-none-eabi-g++' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-g++'
'xpacks/.bin/arm-none-eabi-gcc' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gcc'
'xpacks/.bin/arm-none-eabi-gcc-ar' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gcc-ar'
'xpacks/.bin/arm-none-eabi-gcc-nm' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gcc-nm'
'xpacks/.bin/arm-none-eabi-gcc-ranlib' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gcc-ranlib'
'xpacks/.bin/arm-none-eabi-gcov' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gcov'
'xpacks/.bin/arm-none-eabi-gcov-dump' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gcov-dump'
'xpacks/.bin/arm-none-eabi-gcov-tool' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gcov-tool'
'xpacks/.bin/arm-none-eabi-gdb' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gdb'
'xpacks/.bin/arm-none-eabi-gdb-add-index' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gdb-add-index'
'xpacks/.bin/arm-none-eabi-gdb-add-index-py3' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gdb-add-index-py3'
'xpacks/.bin/arm-none-eabi-gdb-py3' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gdb-py3'
'xpacks/.bin/arm-none-eabi-gfortran' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gfortran'
'xpacks/.bin/arm-none-eabi-gprof' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gprof'
'xpacks/.bin/arm-none-eabi-gprof-py3' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-gprof-py3'
'xpacks/.bin/arm-none-eabi-ld' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-ld'
'xpacks/.bin/arm-none-eabi-ld.bfd' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-ld.bfd'
'xpacks/.bin/arm-none-eabi-lto-dump' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-lto-dump'
'xpacks/.bin/arm-none-eabi-nm' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-nm'
'xpacks/.bin/arm-none-eabi-objcopy' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-objcopy'
'xpacks/.bin/arm-none-eabi-objdump' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-objdump'
'xpacks/.bin/arm-none-eabi-ranlib' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-ranlib'
'xpacks/.bin/arm-none-eabi-readelf' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-readelf'
'xpacks/.bin/arm-none-eabi-size' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-size'
'xpacks/.bin/arm-none-eabi-strings' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-strings'
'xpacks/.bin/arm-none-eabi-strip' -> '../@xpack-dev-tools/arm-none-eabi-gcc/.content/bin/arm-none-eabi-strip'
%

Build and test

The generated project includes dependencies to all build tools, including the toolchain, and running the tests can be done immediately.

% cd my-project
% xpm run test-all
> xpm run test-qemu-cortex-m7f-cmake-debug
> xpm run prepare --config qemu-cortex-m7f-cmake-debug
> cmake -S . -B build/qemu-cortex-m7f-cmake-debug -G Ninja -D CMAKE_BUILD_TYPE=Debug -D PLATFORM_NAME=qemu-cortex-m7f -D CMAKE_EXPORT_COMPILE_COMMANDS=ON --log-level=VERBOSE -D CMAKE_TOOLCHAIN_FILE=xpacks/@micro-os-plus/build-helper/cmake/toolchains/arm-none-eabi-gcc.cmake
-- The C compiler identification is GNU 11.2.1
-- The CXX compiler identification is GNU 11.2.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /Users/ilg/tmp/my-project/xpacks/.bin/arm-none-eabi-gcc - 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: /Users/ilg/tmp/my-project/xpacks/.bin/arm-none-eabi-g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- The ASM compiler identification is GNU
-- Found assembler: /Users/ilg/tmp/my-project/xpacks/.bin/arm-none-eabi-gcc
-- Including micro-os-plus-build-helper module...
-- CMake version: 3.20.6-gc90b991
-- Compiler: GNU 11.2.1
-- package.name: @my-scope/my-project
-- package.version: 1.4.2
-- Platform name: qemu-cortex-m7f
-- Build type: Debug
-- Project path: /Users/ilg/tmp/my-project
-- Build path: /Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-debug
-- Module path: /Users/ilg/tmp/my-project/xpacks/@micro-os-plus/build-helper/cmake
-- CMAKE_C_COMPILER_ID: GNU
-- CMAKE_SYSTEM_NAME: Generic
-- CMAKE_SYSTEM_PROCESSOR: arm
-- Including global definitions...
-- Adding GCC warnings...
-- Including platform-qemu-cortex-m7f globals...
-- .G+ -I platform-qemu-cortex-m7f/include-config
-- .G+ -D $<$<CONFIG:Debug>:MICRO_OS_PLUS_DEBUG>
-- .G+ -D $<$<CONFIG:Debug>:MICRO_OS_PLUS_TRACE>
-- .G+ -D MICRO_OS_PLUS_INCLUDE_CONFIG_H
-- .G+ -D _POSIX_C_SOURCE=200809L
-- .G+ -fmessage-length=0
-- .G+ -fsigned-char
-- .G+ -ffunction-sections
-- .G+ -fdata-sections
-- .G+ -fdiagnostics-color=always
-- .G+ -Wall
...
-- .G+ -Wvla
-- .G+ $<$<COMPILE_LANGUAGE:C>:-Wbad-function-cast>
...
-- .G+ $<$<COMPILE_LANGUAGE:CXX>:-Wmismatched-tags>
-- .G+ -mcpu=cortex-m7
-- .G+ -mthumb
-- .G+ -mfloat-abi=hard
-- .G+ -fno-move-loop-invariants
-- .G+ -Werror
-- .G+ $<$<CONFIG:Debug>:-fno-omit-frame-pointer>
-- .G+ $<$<COMPILE_LANGUAGE:CXX>:-fno-use-cxa-atexit>
-- .G+ $<$<COMPILE_LANGUAGE:CXX>:-fno-threadsafe-statics>
-- Adding 'xpacks/@micro-os-plus/architecture-cortexm'...
-- Processing xPack @micro-os-plus/architecture-cortexm@6.1.0...
-- > micro-os-plus-architecture-cortexm-interface
-- + -I include
-- > micro-os-plus::architecture-cortexm -> micro-os-plus-architecture-cortexm-interface
-- > micro-os-plus::architecture -> micro-os-plus-architecture-cortexm-interface
-- Adding 'xpacks/@micro-os-plus/devices-qemu-cortexm'...
-- Processing xPack @micro-os-plus/devices-qemu-cortexm@4.1.1...
-- > micro-os-plus-devices-qemu-cortexm-interface
-- + -I include
-- + src/reset-handler.c
-- + src/system-cortexm.c
-- + src/vectors-cortexm.c
-- + src/exception-handlers.cpp
-- + -D DEVICE_QEMU_CORTEX_M7
-- + xpack-3rd-party::arm-cmsis-core-m
-- > micro-os-plus::devices-qemu-cortexm -> micro-os-plus-devices-qemu-cortexm-interface
-- > micro-os-plus::device -> micro-os-plus-devices-qemu-cortexm-interface
-- Adding 'xpacks/@micro-os-plus/diag-trace'...
-- Processing xPack @micro-os-plus/diag-trace@4.0.0...
-- > micro-os-plus-diag-trace-interface
-- + -I include
-- + src/trace.cpp
-- > micro-os-plus::diag-trace -> micro-os-plus-diag-trace-interface
-- Adding 'xpacks/@micro-os-plus/semihosting'...
-- Processing xPack @micro-os-plus/semihosting@5.0.0...
-- > micro-os-plus-semihosting-interface
-- + -I include
-- + src/syscalls-semihosting.cpp
-- + src/trace-semihosting.cpp
-- + micro-os-plus::diag-trace
-- + micro-os-plus::architecture
-- > micro-os-plus::semihosting -> micro-os-plus-semihosting-interface
-- Adding 'xpacks/@xpack-3rd-party/arm-cmsis-core'...
-- Processing xPack @xpack-3rd-party/arm-cmsis-core@5.4.0-6...
-- > xpack-3rd-party-arm-cmsis-core-m-interface
-- + -I CMSIS/Core/Include
-- + -D __PROGRAM_START
-- > xpack-3rd-party::arm-cmsis-core-m -> xpack-3rd-party-arm-cmsis-core-m-interface
-- > xpack-3rd-party-arm-cmsis-core-a-interface
-- + -I CMSIS/Core_A/Include
-- + -D __PROGRAM_START
-- > xpack-3rd-party::arm-cmsis-core-a -> xpack-3rd-party-arm-cmsis-core-a-interface
-- > hello-world-interface
-- + -I include
-- + src/main.cpp
-- > app::hello-world -> hello-world-interface
-- Processing 'platform-qemu-cortex-m7f'...
-- > platform-qemu-cortex-m7f-interface
-- + -I include-platform
-- + -D PLATFORM_QEMU_CORTEX_M7F
-- + micro-os-plus::devices-qemu-cortexm
-- > micro-os-plus::platform -> platform-qemu-cortex-m7f-interface
-- A> hello-world
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-debug
> xpm run build --config qemu-cortex-m7f-cmake-debug
> cmake -S . -B build/qemu-cortex-m7f-cmake-debug -G Ninja -D CMAKE_BUILD_TYPE=Debug -D PLATFORM_NAME=qemu-cortex-m7f -D CMAKE_EXPORT_COMPILE_COMMANDS=ON
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-debug
> cmake --build build/qemu-cortex-m7f-cmake-debug
[9/9] Linking CXX executable platform-bin/hello-world.elf
   text	   data	    bss	    dec	    hex	filename
 354288	   5040	   8760	 368088	  59dd8	/Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-debug/platform-bin/hello-world.elf
> xpm run test --config qemu-cortex-m7f-cmake-debug
> cd build/qemu-cortex-m7f-cmake-debug && ctest -V
UpdateCTestConfiguration  from :/Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-debug/DartConfiguration.tcl
UpdateCTestConfiguration  from :/Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-debug/DartConfiguration.tcl
Test project /Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-debug
Constructing a list of tests
Done constructing a list of tests
Updating test list for fixtures
Added 0 tests to meet fixture requirements
Checking test dependency graph...
Checking test dependency graph end
test 1
    Start 1: hello-world

1: Test command: /Users/ilg/tmp/my-project/xpacks/.bin/qemu-system-arm "--machine" "mps2-an500" "--cpu" "cortex-m7" "--kernel" "hello-world.elf" "--nographic" "-d" "unimp,guest_errors" "--semihosting-config" "enable=on,target=native,arg=hello-world,arg=M7"
1: Test timeout computed to be: 10000000
1: Hello M7 World!
1: (in debug mode)
1/1 Test #1: hello-world ......................   Passed    0.04 sec

100% tests passed, 0 tests failed out of 1

Total Test time (real) =   0.04 sec
> xpm run test-qemu-cortex-m7f-cmake-release
> xpm run prepare --config qemu-cortex-m7f-cmake-release
> cmake -S . -B build/qemu-cortex-m7f-cmake-release -G Ninja -D CMAKE_BUILD_TYPE=Release -D PLATFORM_NAME=qemu-cortex-m7f -D CMAKE_EXPORT_COMPILE_COMMANDS=ON --log-level=VERBOSE -D CMAKE_TOOLCHAIN_FILE=xpacks/@micro-os-plus/build-helper/cmake/toolchains/arm-none-eabi-gcc.cmake
-- The C compiler identification is GNU 11.2.1
-- The CXX compiler identification is GNU 11.2.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /Users/ilg/tmp/my-project/xpacks/.bin/arm-none-eabi-gcc - 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: /Users/ilg/tmp/my-project/xpacks/.bin/arm-none-eabi-g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- The ASM compiler identification is GNU
-- Found assembler: /Users/ilg/tmp/my-project/xpacks/.bin/arm-none-eabi-gcc
-- Including micro-os-plus-build-helper module...
-- CMake version: 3.20.6-gc90b991
-- Compiler: GNU 11.2.1
-- package.name: @my-scope/my-project
-- package.version: 1.4.2
-- Platform name: qemu-cortex-m7f
-- Build type: Release
-- Project path: /Users/ilg/tmp/my-project
-- Build path: /Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-release
-- Module path: /Users/ilg/tmp/my-project/xpacks/@micro-os-plus/build-helper/cmake
-- CMAKE_C_COMPILER_ID: GNU
-- CMAKE_SYSTEM_NAME: Generic
-- CMAKE_SYSTEM_PROCESSOR: arm
-- Including global definitions...
-- Adding GCC warnings...
-- Including platform-qemu-cortex-m7f globals...
-- .G+ -I platform-qemu-cortex-m7f/include-config
-- .G+ -D $<$<CONFIG:Debug>:MICRO_OS_PLUS_DEBUG>
-- .G+ -D $<$<CONFIG:Debug>:MICRO_OS_PLUS_TRACE>
-- .G+ -D MICRO_OS_PLUS_INCLUDE_CONFIG_H
-- .G+ -D _POSIX_C_SOURCE=200809L
-- .G+ -fmessage-length=0
-- .G+ -fsigned-char
-- .G+ -ffunction-sections
-- .G+ -fdata-sections
-- .G+ -fdiagnostics-color=always
-- .G+ -Wall
-- .G+ -Waggregate-return
...
-- .G+ $<$<COMPILE_LANGUAGE:CXX>:-Wmismatched-tags>
-- .G+ -mcpu=cortex-m7
-- .G+ -mthumb
-- .G+ -mfloat-abi=hard
-- .G+ -fno-move-loop-invariants
-- .G+ -Werror
-- .G+ $<$<CONFIG:Debug>:-fno-omit-frame-pointer>
-- .G+ $<$<COMPILE_LANGUAGE:CXX>:-fno-use-cxa-atexit>
-- .G+ $<$<COMPILE_LANGUAGE:CXX>:-fno-threadsafe-statics>
-- Adding 'xpacks/@micro-os-plus/architecture-cortexm'...
-- Processing xPack @micro-os-plus/architecture-cortexm@6.1.0...
-- > micro-os-plus-architecture-cortexm-interface
-- + -I include
-- > micro-os-plus::architecture-cortexm -> micro-os-plus-architecture-cortexm-interface
-- > micro-os-plus::architecture -> micro-os-plus-architecture-cortexm-interface
-- Adding 'xpacks/@micro-os-plus/devices-qemu-cortexm'...
-- Processing xPack @micro-os-plus/devices-qemu-cortexm@4.1.1...
-- > micro-os-plus-devices-qemu-cortexm-interface
-- + -I include
-- + src/reset-handler.c
-- + src/system-cortexm.c
-- + src/vectors-cortexm.c
-- + src/exception-handlers.cpp
-- + -D DEVICE_QEMU_CORTEX_M7
-- + xpack-3rd-party::arm-cmsis-core-m
-- > micro-os-plus::devices-qemu-cortexm -> micro-os-plus-devices-qemu-cortexm-interface
-- > micro-os-plus::device -> micro-os-plus-devices-qemu-cortexm-interface
-- Adding 'xpacks/@micro-os-plus/diag-trace'...
-- Processing xPack @micro-os-plus/diag-trace@4.0.0...
-- > micro-os-plus-diag-trace-interface
-- + -I include
-- + src/trace.cpp
-- > micro-os-plus::diag-trace -> micro-os-plus-diag-trace-interface
-- Adding 'xpacks/@micro-os-plus/semihosting'...
-- Processing xPack @micro-os-plus/semihosting@5.0.0...
-- > micro-os-plus-semihosting-interface
-- + -I include
-- + src/syscalls-semihosting.cpp
-- + src/trace-semihosting.cpp
-- + micro-os-plus::diag-trace
-- + micro-os-plus::architecture
-- > micro-os-plus::semihosting -> micro-os-plus-semihosting-interface
-- Adding 'xpacks/@xpack-3rd-party/arm-cmsis-core'...
-- Processing xPack @xpack-3rd-party/arm-cmsis-core@5.4.0-6...
-- > xpack-3rd-party-arm-cmsis-core-m-interface
-- + -I CMSIS/Core/Include
-- + -D __PROGRAM_START
-- > xpack-3rd-party::arm-cmsis-core-m -> xpack-3rd-party-arm-cmsis-core-m-interface
-- > xpack-3rd-party-arm-cmsis-core-a-interface
-- + -I CMSIS/Core_A/Include
-- + -D __PROGRAM_START
-- > xpack-3rd-party::arm-cmsis-core-a -> xpack-3rd-party-arm-cmsis-core-a-interface
-- > hello-world-interface
-- + -I include
-- + src/main.cpp
-- > app::hello-world -> hello-world-interface
-- Processing 'platform-qemu-cortex-m7f'...
-- > platform-qemu-cortex-m7f-interface
-- + -I include-platform
-- + -D PLATFORM_QEMU_CORTEX_M7F
-- + micro-os-plus::devices-qemu-cortexm
-- > micro-os-plus::platform -> platform-qemu-cortex-m7f-interface
-- A> hello-world
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-release
> xpm run build --config qemu-cortex-m7f-cmake-release
> cmake -S . -B build/qemu-cortex-m7f-cmake-release -G Ninja -D CMAKE_BUILD_TYPE=Release -D PLATFORM_NAME=qemu-cortex-m7f -D CMAKE_EXPORT_COMPILE_COMMANDS=ON
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-release
> cmake --build build/qemu-cortex-m7f-cmake-release
[9/9] Linking CXX executable platform-bin/hello-world.elf
   text	   data	    bss	    dec	    hex	filename
 352520	   5040	   8760	 366320	  596f0	/Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-release/platform-bin/hello-world.elf
> xpm run test --config qemu-cortex-m7f-cmake-release
> cd build/qemu-cortex-m7f-cmake-release && ctest -V
UpdateCTestConfiguration  from :/Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-release/DartConfiguration.tcl
UpdateCTestConfiguration  from :/Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-release/DartConfiguration.tcl
Test project /Users/ilg/tmp/my-project/build/qemu-cortex-m7f-cmake-release
Constructing a list of tests
Done constructing a list of tests
Updating test list for fixtures
Added 0 tests to meet fixture requirements
Checking test dependency graph...
Checking test dependency graph end
test 1
    Start 1: hello-world

1: Test command: /Users/ilg/tmp/my-project/xpacks/.bin/qemu-system-arm "--machine" "mps2-an500" "--cpu" "cortex-m7" "--kernel" "hello-world.elf" "--nographic" "-d" "unimp,guest_errors" "--semihosting-config" "enable=on,target=native,arg=hello-world,arg=M7"
1: Test timeout computed to be: 10000000
1: Hello M7 World!
1: (in release mode)
1/1 Test #1: hello-world ......................   Passed    0.04 sec

100% tests passed, 0 tests failed out of 1

Total Test time (real) =   0.04 sec
%

Toolchains

The generated projects use the xPack GNU Compiler Collection toolchains.

Windows specifics

On Windows, the VS Code IntelliSense logic does not properly identify the toolchain when installed via npm/xpm (#28); thus the need for CMake and meson to use the explicit program extensions (like arm-none-eabi-gcc.cmd).

Known problems

none

Maintainer & developer info

This page is addressed to those who plan to use the template directly.

For maintainer and developer info, please see the README-MAINTAINER and README-DEVELOPER pages.

Name		Name	Last commit message	Last commit date
Latest commit History 119 Commits
.github		.github
.vscode		.vscode
assets/sources		assets/sources
lib		lib
tests		tests
.gitignore		.gitignore
.npmignore		.npmignore
CHANGELOG.md		CHANGELOG.md
LICENSE		LICENSE
README-DEVELOPER.md		README-DEVELOPER.md
README-MAINTAINER.md		README-MAINTAINER.md
README.md		README.md
index.js		index.js
package-lock.json		package-lock.json
package.json		package.json

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A template to generate Hello World semihosted application running on QEMU

Features

Prerequisites

User info

Template instantiation via `xpm init`

Interactive mode

Scriptable mode

Satisfy dependencies

Build and test

Toolchains

Windows specifics

Known problems

Maintainer & developer info

License

About

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Sponsor this project

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micro-os-plus/hello-world-qemu-template-xpack

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A template to generate Hello World semihosted application running on QEMU

Features

Prerequisites

User info

Template instantiation via xpm init

Interactive mode

Scriptable mode

Satisfy dependencies

Build and test

Toolchains

Windows specifics

Known problems

Maintainer & developer info

License

About

Resources

License

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Releases

Sponsor this project

Languages

Template instantiation via `xpm init`