[CMake] Assembler handling in 2.8.5 vs 2.8.4

[Alexander Neundorf]

On Wednesday 20 July 2011, Florian Reinhard wrote:
> Hi,
> 
> in 2.8.4 i added these lines to my project and had .asm files compiled
> correctly:
> 
> ...set C/CXX compiler and how they are called...
> ENABLE_LANGUAGE(ASM)
> SET (CMAKE_ASM_COMPILE_OBJECT "<CMAKE_C_COMPILER> -fr=<OBJECT_DIR>
> -eo=.asm.obj <DEFINES> <FLAGS> <SOURCE>")
> 
> PROJECT (myproject)
> ...add soruces, libraries and executables etc...
> 
> 
> with 2.8.5 i get this :
> ==============================================================
> -- Checked for GNU
> --    Output: ->> WARNING: invalid compiler option --version (ignored)
> 
> >> ERROR: no source files, nothing to do
> 
> -
> --    Result: -0-
> -- Checked for HP
> --    Output: ->> WARNING: invalid compiler option -V (ignored)
> 
> >> ERROR: no source files, nothing to do
> 
> -
> --    Result: -0-
> -- Checked for Intel
> --    Output: ->> WARNING: invalid compiler option --version (ignored)
> 
> >> ERROR: no source files, nothing to do
> 
> -
> --    Result: -0-
> -- Checked for SunPro
> --    Output: ->> WARNING: invalid compiler option -V (ignored)
> 
> >> ERROR: no source files, nothing to do
> 
> -
> --    Result: -0-
> -- Checked for XL
> --    Output: -TMS320C6x C/C++ Compiler                v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> 
> TMS320C6x C/C++ Parser                  v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x EABI C/C++ Parser             v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x C/C++ File Merge              v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x C/C++ Optimizer               v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x C/C++ Codegen                 v7.2.4
> Build Number 1LFFQ-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Consultant Generator          v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Assembly Preprocessor         v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Assembler                     v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Compressor                    v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Embed Utility                 v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x C Source Interlister          v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Linker                        v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Absolute Lister               v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Strip Utility                 v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x XREF Utility                  v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x C++ Demangler                 v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Hex Converter                 v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Library Builder               v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Name Utility                  v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Object File Display           v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> TMS320C6x Archiver                      v7.2.4
> Build Number 1LFFP-KDADEMDK-RTARQ-TAV-ZAZG_X_S_U
> -
> --    Result: -0-
> -- Checked for TI_DSP
> --    Output: -TMS320C6x C/C++ Compiler                v7.2.4
> 
> <THE WHOLE "cl6x --help" OUTPUT GOES HERE>
> 
> -- Found assembler: c:/tools/cgtools-7.2.4/bin/cl6x.exe
> CMake Error at
> C:/tools/cmake/share/cmake-2.8/Modules/CMakeASMInformation.cmake:36
> (MESSAGE):
>   Did not find file Compiler/TI_DSP-ASM
> Call Stack (most recent call first):
>   CMakeLists.txt:42 (ENABLE_LANGUAGE)
> ==============================================================
> 
> Unfortunately assembler support is not covered by the cmake docs
> shipped with the installation.

Damn, I was so sure I updated the wiki, but apparently I didn't.
So here are the old docs, but this changed quite a bit for 2.8.5:
http://www.vtk.org/Wiki/CMake/Assembler

What it does now:
the language "ASM" is now for assembler files which can be processed by your C 
compiler. This actually seems to be the case for you.
Is the compiler ID of your compiler recognized by cmake ?
It seems like it isn't.
If it was, the assembler support would not try to figure out the "compiler ID" 
for the assembler again, it would just use the compiler ID from C or CXX.

Can you please post the complete cmake output from some basic C project ?

Basically, what we should do, add support for your compiler toolchain, i.e. 
add support for recognizing your compiler, and create files in 
Modules/Compiler/TMS-C|CXX|ASM.cmake.
This doesn't require recompiling cmake, it is all in the modules files.
Then it should all work much better.

How do you compiler settings, toolchain file etc. look right now ?

Thanks
Alex