IAR compilation error with NUCLEO targets

[bcostm]

I have this error when compiling NUCLEO_F401RE target with IAR:

Compile: FilePath.cpp
[Error] FileSystemLike.h@86: [Pe120]: return value type ("void *") does not match the function type ("mbed::DirHandle *")
[Error] FilePath.cpp@20: [Pe144]: a value of type "void *" cannot be used to initialize an entity of type "char const *"
[Error] FilePath.cpp@20: [Pe144]: a value of type "void *" cannot be used to initialize an entity of type "mbed::FileBase *"
[Error] FilePath.cpp@56: [Pe120]: return value type ("void *") does not match the function type ("mbed::FileSystemLike *")
[Error] FilePath.cpp@69: [Pe120]: return value type ("void *") does not match the function type ("mbed::FileLike *")

  virtual DirHandle *opendir(const char *name) { return NULL; };
                                                        ^

"C:\GitHub\mbed\build\mbed\FileSystemLike.h",86 Error[Pe120]: return value type ("void *") does not match the function type ("mbed::DirHandle *")

FilePath::FilePath(const char* file_path) : file_name(NULL), fb(NULL) {
^
"C:\GitHub\mbed\libraries\mbed\common\FilePath.cpp",20 Error[Pe144]: a value of type "void *" cannot be used to initialize an entity of type "char co
nst *"

FilePath::FilePath(const char* file_path) : file_name(NULL), fb(NULL) {
^
"C:\GitHub\mbed\libraries\mbed\common\FilePath.cpp",20 Error[Pe144]: a value of type "void *" cannot be used to initialize an entity of type "mbed::F
ileBase *"

  return NULL;
         ^

"C:\GitHub\mbed\libraries\mbed\common\FilePath.cpp",56 Error[Pe120]: return value type ("void *") does not match the function type ("mbed::FileSystem
Like *")

  return NULL;
         ^

"C:\GitHub\mbed\libraries\mbed\common\FilePath.cpp",69 Error[Pe120]: return value type ("void *") does not match the function type ("mbed::FileLike *
")

• Compilation command: workspace_tools\build.py -t IAR -m NUCLEO_F401RE
• IAR Embedded Workbench for ARM version: 7.10.1.6735
• IAR Embedded Workbench common components: 7.0.2.3053
• private_settings.py file:
  from os.path import join
  ARM_PATH = "C:\Keil_v5\ARM\armcc"
  ARM_BIN = join(ARM_PATH, "bin")
  ARM_INC = join(ARM_PATH, "include")
  ARM_LIB = join(ARM_PATH, "lib")
  IAR_PATH = "C:\Program Files (x86)\IAR Systems\Embedded Workbench 7.0\arm"

For information, same command line and settings with LPC1768 works fine.

[bcostm]

The error is due to a different definition of NULL in ST HAL driver (void* 0) compared to the one defined in stddef.h for example (0).

[0xc0170]

If you have fixed it, please close this issue. Thanks

[bcostm]

No, it is not fixed yet.

[bcostm]

The STM32Cube driver of all Nucleo targets must be corrected to compile with IAR: change NULL by HAL_NULL. The pull request #560 corrects it on the F411RE target. Other targets correction are on-going...

[0xc0170]

I believe this should be resolved now. Thanks