When I use --preinclude cmake reports an error.

[cnwzhu]

When I use --preinclude cmake reports an error. The header file I preinclude has dependencies on other header files that can't be found.

my cmake config

` include_directories( ${TOOLKIT}/lib Source/FreeRTOS/include Source/FreeRTOS/portable/IAR/ARM_CM0 Source/McuDrivers/inc Source/RfDrivers Source/CMSIS Source/UserCode )

target_compile_options(XXX PRIVATE $<$:--dlib_config normal> --cpu Cortex-M0+ --preinclude "${PROJECT_SOURCE_DIR}/Source/UserCode/UserConfig.h" )

` cmake output

` -- The ASM compiler identification is unknown -- Found assembler: C:/Program Files/IAR Systems/Embedded Workbench 9.2/arm/bin/iccarm.exe -- Warning: Did not find file Compiler/-ASM -- Configuring done (1.1s) -- Generating done (0.0s) -- Build files have been written to: C:/Users/wang-/Desktop/App_Plc/cmake-build-debug

Cannot get compiler information: Failed to run compiler:

include "hc32l19x.h"

                       ^
"C:\Users\wang-\Desktop\XX\Source\UserCode\UserConfig.h",72  Fatal error[Pe1696]: cannot open source file "hc32l19x.h"
            searched: "C:\Users\wang-\Desktop\App_Plc\Source\UserCode\"
            searched: "C:\Users\wang-\Desktop\App_Plc\cmake-build-debug"
            searched: " /lib"
            searched: "C:\Program Files\IAR Systems\Embedded Workbench 9.2\arm\inc\c\aarch32\"
            searched: "C:\Program Files\IAR Systems\Embedded Workbench 9.2\arm\inc\"
            searched: "C:\Program Files\IAR Systems\Embedded Workbench 9.2\arm\inc\c\"
            current directory: "C:\Users\wang-\Desktop\App_Plc\cmake-build-debug"
Fatal error detected, aborting.

 `

[felipe-iar]

Yes. By just looking at what you shared here, it seems it cannot find the hc32l19x.h header file included by the preincluded UserConfig.h. This means that the --preinclude seems to be working correctly. Perhaps what is missing is to check where the hc32l19x.h header file comes from. This header is not supplied by IAR.

[cnwzhu]

But, Actually hc32l19x.h is in Source/CMSIS

[felipe-iar]

Thanks for providing further details. Now this is strange. Your project should be working with CMake the way you intend to. Look at this: it works for me on a very similar scenario in which I tried to replicate your project structure (and requirements) when using the IAR C/C++ Compiler for Arm V9.40.2...

• XXX/CMakeLists.txt:

  
  cmake_minimum_required(VERSION 3.20)

project(XXX LANGUAGES C)

add_executable(XXX)

target_sources(XXX PRIVATE main.c)

target_include_directories(XXX PRIVATE Source/CMSIS Source/UserCode)

target_compile_options(XXX PRIVATE --no_wrap_diagnostics --cpu=Cortex-M0+ --preinclude ${PROJECT_SOURCE_DIR}/Source/UserCode/UserConfig.h)

* `XXX/Source/UserCode/UserConfig.h`:
```c
#include "hc32l19x.h"

• XXX/Source/CMSIS/hc32l19x.h:

  #define MACRO 1

• XXX/main.c:

  
  #include "UserConfig.h"

int main() { return MACRO; }

* Configure

felipe-iar@iar ~/XXX $ cmake -Bbuild -GNinja --toolchain iar-toolchain.cmake -- The C compiler identification is IAR ARM 9.40.2 -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working C compiler: /opt/iarsystems/bxarm/arm/bin/iccarm - skipped -- Detecting C compile features -- Detecting C compile features - done -- Configuring done (2.2s) -- Generating done (0.0s) -- Build files have been written to: /home/felipe-iar/XXX/build

* Build

felipe-iar@iar ~/XXX $ cmake --build build --verbose Change Dir: '/home/felipe-iar/XXX/build'

Run Build Command(s): /usr/bin/ninja -v [1/2] /opt/iarsystems/bxarm/arm/bin/iccarm --silent /home/felipe-iar/XXX/main.c -I/home/felipe-iar/XXX/Source/CMSIS -I/home/felipe-iar/XXX/Source/UserCode -e --no_wrap_diagnostics --cpu=Cortex-M0+ --preinclude /home/felipe-iar/XXX/Source/UserCode/UserConfig.h --dependencies=ns CMakeFiles/XXX.dir/main.o.d -o CMakeFiles/XXX.dir/main.o [2/2] : && /opt/iarsystems/bxarm-9.40.2/arm/bin/ilinkarm CMakeFiles/XXX.dir/main.o --silent -o XXX.elf && :

[felipe-iar]

A word of caution though about for specifying --preinclude. The flag works for C and CXX but if the target uses ASM sources, it is a different flag for the IAR Assembler (-P). Example:

project(XXX LANGUAGES C ASM)
# etc...
target_compile_options(XXX PRIVATE
  --cpu=Cortex-M0+
   $<$<COMPILE_LANGUAGE:C,CXX>:--preinclude>
   $<$<COMPILE_LANGUAGE:ASM>:-P> ${PROJECT_SOURCE_DIR}/Source/UserCode/UserConfig.h)

The Genex above will use the appropriate flag depending on each source file to be built, based on the language, specified by their extension.

[cnwzhu]

Thank you for your reply. I got through by executing the following command

cmake -Bcmake-build-debug -GNinja --toolchain iar-toolchain.cmake

But the other command still gives an error

cmake --build .\cmake-build-debug\ --verbose                     

The error is

    __WEAK
    ^
"C:\PROGRA~1\IARSYS~1\EMBEDD~1.2\arm\inc\c\assert.h",52  Error[Pe077]: this
          declaration has no storage class or type specifier

    __ATTRIBUTES void __iar_EmptyStepPoint(void);
    ^
"C:\PROGRA~1\IARSYS~1\EMBEDD~1.2\arm\inc\c\assert.h",53  Error[Pe065]: expected
          a ";"

      AdcMskTrigPC15       =  1u<<31,      
                              ^
"C:\Users\wang-\Desktop\App_Plc\Source\McuDrivers\inc\adc.h",237  Warning[Pe068]:
          integer conversion resulted in a change of sign

      AdcMskTrigPC15       =  1u<<31,       
                              ^
"C:\Users\wang-\Desktop\App_Plc\Source\McuDrivers\inc\adc.h",237  Warning[Pe066]:
          enumeration value is out of "int" range

[felipe-iar]

Hard to tell without going into the project’s details. It might require the compiler's extended keywords support enabled, it might be something else requiring a deeper investigation. In either way, this issue tracker is specific for the cmake-tutorial tutorial and, in fact, it is not a general support forum. For technical support use https://www.iar.com/knowledge/support/request-technical-support/