Hello,
I have been trying to build the LDC runtime for a Nucleo-f429zi
board with a Cortex-M4 CPU, by following [1]. The target is not
dependent on
any operating system (as the target board uses a STM32
microcontroller), so the gcc toolchain I have used is
arm-none-eabi-gcc(9.3.1).
The error I am getting after running “CC=arm-none-eabi-gcc
ldc-build-runtime --reset --ninja
--dFlags="-mtriple=thumb-none-linux-eabi” is:
———
CMake Error at
/snap/cmake/549/share/cmake-3.18/Modules/CMakeTestCCompiler.cmake:66 (message):
The C compiler
"/home/teona/gcc-arm-none-eabi-9-2020-q2-update/bin/arm-none-eabi-gcc"
is not able to compile a simple test program.
It fails with the following output:
Change Dir:
/home/teona/runtime_thumb/ldc-build-runtime.tmp/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/ninja cmTC_31c30 && [1/2]
Building C object CMakeFiles/cmTC_31c30.dir/testCCompiler.c.o
[2/2] Linking C executable cmTC_31c30
FAILED: cmTC_31c30
: &&
/home/teona/gcc-arm-none-eabi-9-2020-q2-update/bin/arm-none-eabi-gcc -rdynamic CMakeFiles/cmTC_31c30.dir/testCCompiler.c.o -o cmTC_31c30 && :
arm-none-eabi-gcc: error: unrecognized command line option
'-rdynamic'
ninja: build stopped: subcommand failed.
CMake will not be able to correctly generate this project.
———
After searching online for a solution, I found that the same
issue appeared when using Golang and one answer [2] stated that
it might work by passing to the linker “-Wl,-export-dynamic”
instead of “-rdynamic”. Do you have any idea how I could do that?
CMake version is 3.18,
arm-none-eabi-gcc version is 6.3.1,
ldc2 version is 1.23.0 and the system I am running on is Ubuntu
18.04 LTS.
I would also appreciate any advice regarding ways to build or
create a small runtime for microcontrollers (runtime that can fit
in the memory of a microcontroller).
Thank you very much,
Teona
[1]: https://wiki.dlang.org/Building_LDC_runtime_libraries
[2]:
https://github.com/golang/go/issues/36633#issuecomment-576411479
