Philip Chen 67510f5083 ANDROID: setlocalversion: Add a flag to keep tag info ...

When the kernel head is at a tagged commit, the generated kernel
version will have neither the tag nor the commit hash.

So, unless we manually set EXTRAVERSION in the Makefile when releasing
a new kernel, it is hard to pinpoint the exact kernel release version.

Alternatively, let's add an option to keep the tag info when the kernel
head is at a tagged commit.

This fix only helps when building kernel with build.sh.
Since Android 14 has switched to Bazel, and Bazel uses a different
mechanism (workspace_status_stamp.py) to set up kernel version, the fix
doesn't need to go to Android 14 or newer kernel branches.

Bug: 266829022
Test: build kernel and verify the tag is embedded in the kernel version

Signed-off-by: Philip Chen <philipchen@google.com>
Change-Id: I40bbc414d103567bcc92985f6d63ae27aac8c9b1

2023-04-19 22:30:49 +00:00

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