MSP430FR5969: Tutorial on how to extend the makefile functionality

David Capdevila

Part Number: MSP430FR5969

Tool/software:

Hello,

I have seen the post related to the makefile modfiication to obtain the git tag version and use it as environment variable(Reference: e2e.ti.com/.../ccs-msp430fr5969-storing-a-symbol-value-before-building). I've been trying to set up the pre build steps but I amb not able to produce results. Would it be possible to get a tutorial on how to extend the make file to obtain the git tag version?

Regards,

David

1 month ago

0 Eason Zhou 30 days ago

TI__Mastermind 38410 points

I will move this thread to CCS topic. Hope they can help you find the answer.

0 David Capdevila 29 days ago in reply to Eason Zhou

Prodigy 250 points

Hello,

Great, is there any update on the matter?

David

0 Ki 27 days ago in reply to David Capdevila

TI__Guru**** 451061 points

Hi David,

David Capdevila said:
Would it be possible to get a tutorial on how to extend the make file to obtain the git tag version?

I am not aware of any such tutorial on this. It is not something that we natively support in CCS. Perhaps someone from the community share a solution.

0 David Capdevila 27 days ago in reply to Ki

Prodigy 250 points

Hello Ki,

I've been working on a bash script that could do the the task but I was not able to define properly thev git_tag symbols. I can obtain the git tag version and copy it to a txt but i am not able to define the desired syumbol, maybe you can help me with that?

I am still learning on how to adjust the compiler options through .bat files but i believe it works fine until the compiler flags settings and the symbol defining.

Regards,

David

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@echo off
setlocal enabledelayedexpansion
REM Get Git version information
for /f "tokens=*" %%i in ('git describe --long --dirty --tags 2^>nul') do set GIT_DESCRIBE=%%i
REM Check if git describe command worked
if "%GIT_DESCRIBE%"=="" (
    echo WARNING: Git command failed or no tags found. Using default values.
    set GIT_DESCRIBE=v0.0.0-0-dev-dirty
)
REM Split the git describe output into components
set "version=%GIT_DESCRIBE:-= %"
REM Extract components
for /f "tokens=1,2,3,4" %%a in ("%version%") do (
    set VERSION_TAG=%%a
    set COMMITS_PAST=%%b
    set COMMIT=%%c
    set DIRTY=%%d
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

@echo off
setlocal enabledelayedexpansion

REM Get Git version information
for /f "tokens=*" %%i in ('git describe --long --dirty --tags 2^>nul') do set GIT_DESCRIBE=%%i

REM Check if git describe command worked
if "%GIT_DESCRIBE%"=="" (
    echo WARNING: Git command failed or no tags found. Using default values.
    set GIT_DESCRIBE=v0.0.0-0-dev-dirty
)

REM Split the git describe output into components
set "version=%GIT_DESCRIBE:-= %"

REM Extract components
for /f "tokens=1,2,3,4" %%a in ("%version%") do (
    set VERSION_TAG=%%a
    set COMMITS_PAST=%%b
    set COMMIT=%%c
    set DIRTY=%%d
)

REM Initialize build info variables
set "BUILD_INFO_COMMITS="
set "BUILD_INFO_DIRTY="

REM Add commits info if not zero
if NOT "%COMMITS_PAST%"=="0" (
    set "BUILD_INFO_COMMITS=.%COMMITS_PAST%"
)

REM Add dirty marker if present
if NOT "%DIRTY%"=="" (
    set "BUILD_INFO_DIRTY=+"
)

REM Combine build info
set "BUILD_INFO=%COMMIT%%BUILD_INFO_COMMITS%%BUILD_INFO_DIRTY%"

REM Get build environment information
for /f "tokens=*" %%d in ('date /T') do set DATE=%%d
for /f "tokens=*" %%t in ('time /T') do set TIME=%%t
set "BUILD_DATE=%DATE%, %TIME%"
for /f "tokens=*" %%u in ('echo %username%') do set USERNAME=%%u
for /f "tokens=*" %%h in ('hostname') do set HOSTNAME=%%h
set "BUILD_MACHINE=%USERNAME%@%HOSTNAME%"

REM Display build information
echo Build Time: %BUILD_DATE%
echo Build Version: %VERSION_TAG%
echo Build Info: %BUILD_INFO%

REM Create compiler flags
set "GEN_OPTS__FLAG=--define=VERSION_TAG=\"%VERSION_TAG%\" --define=VERSION_BUILD_INFO=\"%BUILD_INFO%\" --define=VERSION_BUILD_MACHINE=\"%BUILD_MACHINE%\" --define=VERSION_BUILD_DATE=\"%BUILD_DATE%\""

REM Create a variables file that can be included in other batch files
echo @echo off > version_vars.bat
echo set "VERSION_TAG=%VERSION_TAG%" >> version_vars.bat
echo set "BUILD_INFO=%BUILD_INFO%" >> version_vars.bat
echo set "BUILD_MACHINE=%BUILD_MACHINE%" >> version_vars.bat
echo set "BUILD_DATE=%BUILD_DATE%" >> version_vars.bat
echo set "GEN_OPTS__FLAG=%GEN_OPTS__FLAG%" >> version_vars.bat

REM Create a variables file for makefile inclusion
echo VERSION_TAG=%VERSION_TAG% > version_vars.mk
echo BUILD_INFO=%BUILD_INFO% >> version_vars.mk
echo BUILD_MACHINE=%BUILD_MACHINE% >> version_vars.mk
echo BUILD_DATE=%BUILD_DATE% >> version_vars.mk
echo GEN_OPTS__FLAG=%GEN_OPTS__FLAG% >> version_vars.mk

echo.
echo Variables have been written to:
echo - version_vars.bat (for batch files)
echo - version_vars.mk (for makefiles)
echo.
echo To use in the current command prompt session, run:
echo call version_vars.bat

endlocal & (
    REM Export variables outside of the local scope
    set "VERSION_TAG=%VERSION_TAG%"
    set "BUILD_INFO=%BUILD_INFO%"
    set "BUILD_MACHINE=%BUILD_MACHINE%"
    set "BUILD_DATE=%BUILD_DATE%"
    set "GEN_OPTS__FLAG=%GEN_OPTS__FLAG%"
)

0 David Schultz 27 days ago in reply to David Capdevila

Guru 22915 points

David Capdevila said:
I've been working on a bash script

With bash you have to explicitly export things to a child process. If you don't do that then make will never see them. You can do it all in one go.

Found hiding in my .bashrc:

export MSP430_GCC_INCLUDE_DIR=/usr/ti/gcc/include

0 David Capdevila 26 days ago in reply to David Schultz

Prodigy 250 points

Hello David,

Thank you for your response, can you please explain me further what would I accomplish with that command?

Also, correct me if I am mistaken, the child proces should be the bnash script run by CCS, Therefore, should I have to export the symbols to the parent process isntead? I am using the prebuild steps, I believe it is like a separated make commands and I sohuld make an interconenction between the prebuild steps and the actual building procedure top ush the symbols to the compiler.

Regards,

David

0 David Schultz 26 days ago in reply to David Capdevila

Guru 22915 points

I have no idea what CCS is doing but it is pretty much impossible for a child process to change the environment variables of a parent. You can finagle that a little as shown in a recent post on Hackaday. Although that is mostly about preventing bash from starting a child process to run a script.

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MSP430FR5969: Tutorial on how to extend the makefile functionality