Re: Getting started with ARM GNU Compiler | errors | #gettingstartedguide

Marti Bolivar <marti@...>


Is this an upstream sample project? What command lines did you use for
cmake and building the project itself?


On Thu, Nov 15, 2018 at 9:55 PM <> wrote:

Hi Team,

I am just getting started with Zephyr and trying to setup development environment. I followed all the steps described to setup ARM GNU GCC toolchain and compilation ENV.
After setting up everything required, I got the following error after trying to compile a sample project.

CMake Error at ../../cmake/extensions.cmake:1086 (message):
Assertion failed: The toolchain is unable to build a dummy C file. See
Call Stack (most recent call first):
../../CMakeLists.txt:28 (assert)

-- Configuring incomplete, errors occurred!
See also "../zephyr/samples/hello_world/build/CMakeFiles/CMakeOutput.log".
See also "../zephyr/samples/hello_world/build/CMakeFiles/CMakeError.log".

I went through the log files and it seems build failed at following

The output was:
c:/gnu_arm_embedded/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/lib\libc.a(lib_a-exit.o): In function `exit':
exit.c:(.text.exit+0x2c): undefined reference to `_exit'
collect2.exe: error: ld returned 1 exit status""

Seems ARM compiler issue, after bit of google found out that these options "--specs=nosys.specs" needs to be passed as command line params to run gcc.
I am not able to figure out where i can exactly instruct build environment to use these command line options for GCC.

I have attached both error and output log.
Any help will be appreciated to be able to compile a project successfully.

Balasubramanyam Rangineni

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