save reproducer script - #298
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bhcopeland
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Aug 6, 2026
We set KCFLAGS to -ffile-prefix-map=<build dir>/= to keep the build path out of __FILE__. The build dir is local, and the reproducer does not pass --build-dir. So the next build gets a different build dir but the old path in KCFLAGS. The prefix never matches, and __FILE__ keeps the full path. In the kernel that string shows up in WARN and BUG messages, so the build is not bit by bit identical. Leave it out and let the next build set its own value. Keep KCFLAGS if the user asked for it with --environment. Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
The reproducer command line is already in metadata.json and in the top of build.log. Neither can be run. The line has to be copied out of the log first. Write it to reproducer.sh instead. The file is executable, so it runs directly. It is written before the build starts, so it is there also when the build fails. Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
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The reproducer command line is in metadata.json and at the top of
build.log, but it cannot be run from there.
Write it to reproducer.sh in the output directory. The file is
executable, so it runs directly. It is written before the build starts.