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* [PATCH] kbuild: pass jobserver to cmd_ld_vmlinux.o
@ 2022-06-16 10:45 Jiri Slaby
  2022-06-16 14:09 ` Sedat Dilek
  0 siblings, 1 reply; 15+ messages in thread
From: Jiri Slaby @ 2022-06-16 10:45 UTC (permalink / raw)
  To: masahiroy
  Cc: linux-kbuild, linux-kernel, Jiri Slaby, Sedat Dilek,
	Michal Marek, Nick Desaulniers

Until the link-vmlinux.sh split (cf. the commit below), the linker was
run with jobserver set in MAKEFLAGS. After the split, the command in
Makefile.vmlinux_o is not prefixed by "+" anymore, so this information
is lost.

Restore it as linkers working in parallel (esp. the LTO ones) make a use
of it.

Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Fixes: 5d45950dfbb1 (kbuild: move vmlinux.o link to scripts/Makefile.vmlinux_o)
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 scripts/Makefile.vmlinux_o | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/Makefile.vmlinux_o b/scripts/Makefile.vmlinux_o
index 3c97a1564947..d032f625b576 100644
--- a/scripts/Makefile.vmlinux_o
+++ b/scripts/Makefile.vmlinux_o
@@ -65,7 +65,7 @@ define rule_ld_vmlinux.o
 endef
 
 vmlinux.o: $(initcalls-lds) $(KBUILD_VMLINUX_OBJS) $(KBUILD_VMLINUX_LIBS) FORCE
-	$(call if_changed_rule,ld_vmlinux.o)
+	+$(call if_changed_rule,ld_vmlinux.o)
 
 targets += vmlinux.o
 
-- 
2.36.1


^ permalink raw reply related	[flat|nested] 15+ messages in thread

end of thread, other threads:[~2022-09-20  8:44 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-06-16 10:45 [PATCH] kbuild: pass jobserver to cmd_ld_vmlinux.o Jiri Slaby
2022-06-16 14:09 ` Sedat Dilek
2022-06-16 22:53   ` Sedat Dilek
2022-06-17 10:35     ` Sedat Dilek
2022-06-17 10:41       ` Sedat Dilek
2022-06-17 15:21         ` Masahiro Yamada
2022-06-17 20:05           ` Fangrui Song
2022-06-18  6:13             ` Sedat Dilek
2022-06-17 16:32       ` Nick Desaulniers
2022-06-17 17:50         ` Sedat Dilek
2022-06-17 19:34           ` Nathan Chancellor
2022-06-18  5:57             ` Sedat Dilek
2022-06-21  7:30         ` Jiri Slaby
2022-06-21  8:41           ` Masahiro Yamada
2022-09-20  8:43             ` Jiri Slaby

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