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build-system: linux-module: Delete some huge items that we probably don't need.

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* guix/build-system/linux-module.scm (make-linux-module-builder): Delete
some huge items that we probably don't need.
This commit is contained in:
Danny Milosavljevic 2020-09-14 00:24:13 +02:00
parent f165f7c9cb
commit 2be5c2652a
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1 changed files with 28 additions and 1 deletions
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29
guix/build-system/linux-module.scm
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@ -68,14 +68,41 @@
(lambda* (#:key inputs outputs #:allow-other-keys)
(let* ((out (assoc-ref outputs "out"))
(out-lib-build (string-append out "/lib/modules/build")))
;; Delete some huge items that we probably don't need.
;; TODO: Only preserve the minimum, i.e. [Kbuild], Kconfig,
;; scripts, include, ".config".
(copy-recursively "." out-lib-build)
(for-each (lambda (name)
(when (file-exists? name)
(delete-file-recursively name)))
(map (lambda (name)
(string-append out-lib-build "/" name))
'("arch" ; 137 MB
;"tools" ; 44 MB ; Note: is built by our 'build phase.
"tools/testing" ; 14 MB
"tools/perf" ; 17 MB
"drivers" ; 600 MB
"Documentation" ; 52 MB
"fs" ; 43 MB
"net" ; 33 MB
"samples" ; 2 MB
"sound"))) ; 40 MB
;; Reinstate arch/**/dts since "scripts/dtc" depends on it.
;; Reinstate arch/**/include directories.
;; Reinstate arch/**/Makefile.
;; Reinstate arch/**/module.lds.
(for-each
(lambda (name)
(mkdir-p (dirname (string-append out-lib-build "/" name)))
(copy-recursively name
(string-append out-lib-build "/" name)))
(append (find-files "arch" "^(dts|include)$" #:directories? #t)
(find-files "arch" "^(Makefile|module.lds)$")))
(let* ((linux (assoc-ref inputs "linux")))
(install-file (string-append linux "/System.map")
out-lib-build)
(let ((source (string-append linux "/Module.symvers")))
(if (file-exists? source)
(when (file-exists? source)
(install-file source out-lib-build))))
#t)))))))))