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| author | Nicholas Piggin <npiggin@gmail.com> | 2016-11-24 03:41:38 +1100 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.com> | 2016-11-29 15:53:19 +0100 |
| commit | fe026a851b6bb9a11c27e93b9b15060cb310a3d6 (patch) | |
| tree | 98d0a73b38592e5a997d614d7464f6d3f7cf6541 /scripts/Makefile.build | |
| parent | 7e2b37c971a2a20ec8a311a195a626c16c774031 (diff) | |
| download | lwn-fe026a851b6bb9a11c27e93b9b15060cb310a3d6.tar.gz lwn-fe026a851b6bb9a11c27e93b9b15060cb310a3d6.zip | |
kbuild: thin archives for multi-y targets
THIN_ARCHIVES builds archives for built-in.o targets, have it build
multi-y targets as archives as well.
This saves another ~15% of the size of intermediate artifacts in the
build tree. After this patch, the linker is only used in final link,
and special cases like vdsos.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.com>
Diffstat (limited to 'scripts/Makefile.build')
| -rw-r--r-- | scripts/Makefile.build | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index de46ab03f063..9807a8115896 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -448,11 +448,18 @@ $($(subst $(obj)/,,$(@:.o=-objs))) \ $($(subst $(obj)/,,$(@:.o=-y))) \ $($(subst $(obj)/,,$(@:.o=-m)))), $^) -quiet_cmd_link_multi-y = LD $@ -cmd_link_multi-y = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis) +cmd_link_multi-link = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis) + +ifdef CONFIG_THIN_ARCHIVES + quiet_cmd_link_multi-y = AR $@ + cmd_link_multi-y = rm -f $@; $(AR) rcST$(KBUILD_ARFLAGS) $@ $(link_multi_deps) +else + quiet_cmd_link_multi-y = LD $@ + cmd_link_multi-y = $(cmd_link_multi-link) +endif quiet_cmd_link_multi-m = LD [M] $@ -cmd_link_multi-m = $(cmd_link_multi-y) +cmd_link_multi-m = $(cmd_link_multi-link) $(multi-used-y): FORCE $(call if_changed,link_multi-y) |