From fe026a851b6bb9a11c27e93b9b15060cb310a3d6 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin <npiggin@gmail.com> Date: Thu, 24 Nov 2016 03:41:38 +1100 Subject: [PATCH] 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> --- scripts/Makefile.build | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/scripts/Makefile.build b/scripts/Makefile.build index de46ab03f063b..9807a81158960 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) -- GitLab