Xen's Kbuild-derived build system records the exact command line used
to compile each object in .<target>.o.cmd files. That is everything
needed to produce a compile_commands.json compilation database, the
format clangd and other tooling consume to provide accurate
cross-referencing (go to definition, find references, call hierarchy)
in LSP-capable editors.
Import scripts/clang-tools/gen_compile_commands.py from the Linux
kernel, unmodified, so that the provenance of the code is easy to
verify (commit 90efe2b9119f, Linux v6.16).
As-is the script produces an empty database on a Xen tree, since
Xen's compile command lines differ slightly from Linux's; the
following patch adapts it.
Assisted-by: LLM
Signed-off-by: George Dunlap <gwd@xenproject.org>
Acked-by: Anthony PERARD <anthony.perard@vates.tech>
