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build-system/gnu: strip with --strip-unneeded [v2]

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[Accidentally pushed patch v1, this commit contains the rest of the
changes. Revised commit message follows.]

Apart from debug information, one can also strip some symbols. This can
be a significant difference, the closure of gcc-toolchain@7 got reduced
by 15 MB in my tests.

As per [1], --strip-debug is included in --strip-unneeded, and
the debug files created also contain a copy of the information removed
by --strip-unneeded.

Linux From Scratch suggests that this option shouldn't be used on static
libraries [2], however other sources [3] indicate otherwise. Building a
toolchain with this patch succeeds, and the result works fine for
'gcc -static hello-world.c'.

[1]: https://stackoverflow.com/a/52555093
[2]: http://www.linuxfromscratch.org/lfs/view/9.1/chapter05/stripping.html
[3]: https://www.technovelty.org/linux/stripping-shared-libraries.html

* guix/build/gnu-build-system.scm (strip): Use --strip-unneeded.
* guix/build-system/gnu.scm (static-package, gnu-build, gnu-cross-build): Likewise.
This commit is contained in:
Jakub Kądziołka 2020-07-30 02:21:54 +02:00
parent f32a6055a5
commit e0f31baacc
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1 changed files with 3 additions and 3 deletions
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6
guix/build-system/gnu.scm
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@ -215,7 +215,7 @@ (define* (static-package p #:key (strip-all? #t))
(arguments
(let ((a (default-keyword-arguments (package-arguments p)
'(#:configure-flags '()
#:strip-flags '("--strip-debug")))))
#:strip-flags '("--strip-unneeded")))))
(substitute-keyword-arguments a
((#:configure-flags flags)
`(cons* "--disable-shared" "LDFLAGS=-static" ,flags))
@ -337,7 +337,7 @@ (define* (gnu-build store name input-drvs
(parallel-tests? #t)
(patch-shebangs? #t)
(strip-binaries? #t)
(strip-flags ''("--strip-debug"
(strip-flags ''("--strip-unneeded"
"--enable-deterministic-archives"))
(strip-directories ''("lib" "lib64" "libexec"
"bin" "sbin"))
@ -492,7 +492,7 @@ (define* (gnu-cross-build store name
(parallel-build? #t) (parallel-tests? #t)
(patch-shebangs? #t)
(strip-binaries? #t)
(strip-flags ''("--strip-debug"
(strip-flags ''("--strip-unneeded"
"--enable-deterministic-archives"))
(strip-directories ''("lib" "lib64" "libexec"
"bin" "sbin"))