Failed to manually build blinky example

[mraposo1]

Had tried to build it from the IDE before.  Couldn't do it.
Tried to build manually, got exactly the same error I was getting in the IDE.

Parsing C:/Users/mario.raposo/zephyrproject/zephyr/Kconfig
Loaded configuration 'C:/Users/mario.raposo/zephyrproject/zephyr/build/zephyr/.config'
No change to configuration in 'C:/Users/mario.raposo/zephyrproject/zephyr/build/zephyr/.config'
No change to Kconfig header in 'C:/Users/mario.raposo/zephyrproject/zephyr/build/zephyr/include/generated/autoconf.h'
CMake Error at ../../../cmake/extensions.cmake:1557 (message):
Assertion failed: The toolchain is unable to build a dummy C file. See
CMakeError.log.
Call Stack (most recent call first):
../../../CMakeLists.txt:42 (assert)

-- Configuring incomplete, errors occurred!
See also "C:/Users/mario.raposo/zephyrproject/zephyr/build/CMakeFiles/CMakeOutput.log".
See also "C:/Users/mario.raposo/zephyrproject/zephyr/build/CMakeFiles/CMakeError.log".

[mraposo1]

I was able to get a little bit forward.
Now getting a "undefined reference to _exit" error.
I opened a new case:

devzone.nordicsemi.com/.../undefined-reference-to-_exit-when-building-blinky

[JONATHAN LL]

You can get the latest release of the GNU Arm Embedded Toolchain here and older release here. 
check out this video for a visualization of the IDE use and more: https://youtu.be/1jgImp7FBy8?t=877 
What is the command you use in terminal when trying to build?

Do you use  west build -b thingy91_nrf9160ns ? 

And do you still get the same terminal output:

-- Cache files will be written to: C:/Nordic/ncs/zephyr/.cache
-- Found dtc: C:/ProgramData/chocolatey/bin/dtc.exe (found suitable version "1.4.7", minimum required is "1.4.6")
-- Found toolchain: gnuarmemb (C:\gnuarmemb)
-- Found BOARD.dts: C:/Nordic/ncs/nrf/boards/arm/thingy91_nrf9160/thingy91_nrf9160ns.dts
-- Generated zephyr.dts: C:/Nordic/ncs/zephyr/build/zephyr/zephyr.dts
-- Generated devicetree_unfixed.h: C:/Nordic/ncs/zephyr/build/zephyr/include/generated/devicetree_unfixed.h
Parsing C:/Nordic/ncs/zephyr/Kconfig
Loaded configuration 'C:/Nordic/ncs/nrf/boards/arm/thingy91_nrf9160/thingy91_nrf9160ns_defconfig'
Merged configuration 'C:/Nordic/ncs/zephyr/samples/basic/blinky/prj.conf'
Configuration saved to 'C:/Nordic/ncs/zephyr/build/zephyr/.config'
Kconfig header saved to 'C:/Nordic/ncs/zephyr/build/zephyr/include/generated/autoconf.h'
-- The C compiler identification is GNU 8.3.1
-- The CXX compiler identification is GNU 8.3.1
-- The ASM compiler identification is GNU
-- Found assembler: C:/gnuarmemb/bin/arm-none-eabi-gcc.exe
CMake Error at ../../../cmake/extensions.cmake:1557 (message):
Assertion failed: The toolchain is unable to build a dummy C file. See
CMakeError.log.
Call Stack (most recent call first):
../../../CMakeLists.txt:42 (assert)


-- Configuring incomplete, errors occurred!
See also "C:/Nordic/ncs/zephyr/build/CMakeFiles/CMakeOutput.log".
See also "C:/Nordic/ncs/zephyr/build/CMakeFiles/CMakeError.log".
FATAL ERROR: command exited with status 1: 'C:\Program Files\CMake\bin\cmake.EXE' '-DWEST_PYTHON=c:\users\mario.raposo\appdata\local\programs\python\python37\python.exe' '-BC:\Nordic\ncs\zephyr\build' '-SC:\Nordic\ncs\zephyr\samples\basic\blinky' -GNinja

Your CMakeOutput file look good the CMakeError has a build command fail that C executable Linking. 
resulting in a can not fin path. 

Linking C executable cmTC_3e03c
FAILED: cmTC_3e03c
:
:
The system cannot find the path specified.



We can continue the discussion on either case if the problem is related, i will get back to you on the topic of each case if there the problems are not related.
Regards,
Jonathan

[mraposo1]

Uninstalled my installed cmake.
Uninstalled NCS.
Re-installed using Toolchain manager.



Same error.

Fullscreen 3618.CMakeError.log Download

Compiling the C compiler identification source file "CMakeCCompilerId.c" failed.
Compiler: C:/Users/mario.raposo/ncs/v1.3.1/toolchain/opt/bin/arm-none-eabi-gcc.exe 
Build flags: 
Id flags:  

The output was:
1
c:/users/mario.raposo/ncs/v1.3.1/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: c:/users/mario.raposo/ncs/v1.3.1/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../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


Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" failed.
Compiler: C:/Users/mario.raposo/ncs/v1.3.1/toolchain/opt/bin/arm-none-eabi-gcc.exe 
Build flags: 
Id flags:  

The output was:
1
c:/users/mario.raposo/ncs/v1.3.1/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: c:/users/mario.raposo/ncs/v1.3.1/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../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


Performing C SOURCE FILE Test check_C__nostartfiles__nostdlib__isystem__c__users_mario_raposo_ncs_v1_3_1_toolchain_opt_bin____lib_gcc_arm_none_eabi_9_2_1_include___isystem__c__users_mario_raposo_ncs_v1_3_1_toolchain_opt_bin____lib_gcc_arm_none_eabi_9_2_1_include_fixed___Wl___unresolved_symbols_ignore_in_object_files__Wl___entry_0 failed with the following output:
Change Dir: C:/Users/mario.raposo/ncs/v1.3.1/zephyr/samples/basic/blinky/build_thingy91_nrf9160/CMakeFiles/CMakeTmp

Run Build Command:"C:/Users/mario.raposo/ncs/v1.3.1/toolchain/opt/bin/ninja.exe" "cmTC_ef9e1"
[1/2] Building C object CMakeFiles/cmTC_ef9e1.dir/src.c.obj

[2/2] Linking C executable cmTC_ef9e1

FAILED: cmTC_ef9e1 

cmd.exe /C "cd . && C:\Users\mario.raposo\ncs\v1.3.1\toolchain\opt\bin\arm-none-eabi-gcc.exe -Dcheck_C__nostartfiles__nostdlib__isystem__c__users_mario_raposo_ncs_v1_3_1_toolchain_opt_bin____lib_gcc_arm_none_eabi_9_2_1_include___isystem__c__users_mario_raposo_ncs_v1_3_1_toolchain_opt_bin____lib_gcc_arm_none_eabi_9_2_1_include_fixed___Wl___unresolved_symbols_ignore_in_object_files__Wl___entry_0 -nostartfiles -nostdlib -isystem "c:/users/mario.raposo/ncs/v1.3.1/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/include" -isystem "c:/users/mario.raposo/ncs/v1.3.1/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/include-fixed" -Wl,--unresolved-symbols=ignore-in-object-files -Wl,--entry=0   CMakeFiles/cmTC_ef9e1.dir/src.c.obj  -o cmTC_ef9e1   && cd ."

The system cannot find the path specified.

ninja: build stopped: subcommand failed.


Source file was:
int main(void) { return 0; }

Fullscreen 0160.CMakeOutput.log Download

The target system is: Generic - 2.3.0 - arm
The host system is: Windows - 10.0.17134 - AMD64
Compiling the C compiler identification source file "CMakeCCompilerId.c" succeeded.
Compiler: C:/Users/mario.raposo/ncs/v1.3.1/toolchain/opt/bin/arm-none-eabi-gcc.exe 
Build flags: 
Id flags: -c 

The output was:
0


Compilation of the C compiler identification source "CMakeCCompilerId.c" produced "CMakeCCompilerId.o"

The C compiler identification is GNU, found in "C:/Users/mario.raposo/ncs/v1.3.1/zephyr/samples/basic/blinky/build_thingy91_nrf9160/CMakeFiles/3.13.4/CompilerIdC/CMakeCCompilerId.o"

Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" succeeded.
Compiler: C:/Users/mario.raposo/ncs/v1.3.1/toolchain/opt/bin/arm-none-eabi-gcc.exe 
Build flags: 
Id flags: -c 

The output was:
0


Compilation of the CXX compiler identification source "CMakeCXXCompilerId.cpp" produced "CMakeCXXCompilerId.o"

The CXX compiler identification is GNU, found in "C:/Users/mario.raposo/ncs/v1.3.1/zephyr/samples/basic/blinky/build_thingy91_nrf9160/CMakeFiles/3.13.4/CompilerIdCXX/CMakeCXXCompilerId.o"

Checking whether the ASM compiler is GNU using "--version" matched "(GNU assembler)|(GCC)|(Free Software Foundation)":
arm-none-eabi-gcc.exe (GNU Tools for Arm Embedded Processors 9-2019-q4-major) 9.2.1 20191025 (release) [ARM/arm-9-branch revision 277599]
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[mraposo1]