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TF-A: Piping source code to $CC complicates usage of static analysis tools
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Description

I'm working on implementing MISRA testing for TF-A, using the ECLAIR tool: https://linaro.atlassian.net/browse/TFC-10 .

One of the complications I'm seeing is with this code: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/tree/make_helpers/build_macros.mk#n502 , which pipes source code directly to $CC. When captured by the ECLAIR static analysis tool, this source code assigned a name like _ROOT/dev/pipe/df399ae0, where last component is randomized and differs from build to build, and then leads to spurious differences in reports between builds, which in turns complicates reveiw and analysis of these reports by developers.

Currently, I have no other choice as to look for a ways to disabled/filter out reporting for the piping code altogether, which of course will lead to less precises MISRA analysis. Instead, it would be better if dynamically generated source code was stored in a file, and this file was explicitly passed to the compiler.

Event Timeline

pfalcon created this task.Aug 9 2022, 3:00 PM
• pearlieflyles added a subscriber: • pearlieflyles.Dec 13 2023, 7:17 AM

Really, your thoughts made me come up with some ideas, thank you for that, if you have enough time, you can have fun playing basketball legends, make sure of that.

• bekean added a subscriber: • bekean.Dec 23 2023, 3:50 AM

Generate the dynamically created source code and save it to a temporary file during the build process. Modify the compiler invocation to use the temporary drift hunters source file.

• orabellehana added a subscriber: • orabellehana.EditedJan 18 2024, 7:58 AM

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