Support multiple/alternative table definitions #1538
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jphickey
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May 18, 2021
Adds a "install_custom.cmake" hook that can be put into a CPU-specific subdirectory under the "defs" directory, that can perform extra installation steps as required for the project/mission. Tweaks the "add_cfe_tables" function such that it can also be called from the install_custom.cmake script to generate additional/alternative table binary files for that CPU. The main update is that it uses the "APP_NAME" parameter to associate the table files with the app library, so the same set of include files can be used. This relies on the target-scope properties being used. Historically that string wasn't verified, it could have been any unique string, but now it should match the app if this is to work as expected.
This was referenced May 18, 2021
astrogeco
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May 24, 2021
Fix #1538, add capability to generate multiple tables
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Is your feature request related to a problem? Please describe.
Some users have requested the ability to generate multiple different table files/configurations as part of the build, to represent different hardware configurations. This way, they can choose the active configuration at install time (by choosing which file gets copied to the target) or at run time, by loading a different table file.
Describe the solution you'd like
Currently the "add_cfe_tables" does not directly support this, but with a little work it should be able to. This requires adding an "install" hook so the user has a proper place to call this function to generate customized table files.
Describe alternatives you've considered
While this is possible to some degree with the current build system, all decisions are made at build time. For instance the C preprocessor can be used (via e.g. add_definitions) to select different table values based on build-time configurations. Alternatively, the user can write their own script to compile a C file and call
elf2cfetblon it, but it can be difficult to determine the proper include paths and compile definitions.Requester Info
Joseph Hickey, Vantage Systems, Inc.
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