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From: Masahiro Yamada <>
To: Ard Biesheuvel <>,
Cc: Catalin Marinas <>,
	Masahiro Yamada <>,
	Will Deacon <>,,
Subject: [PATCH v2 1/2] efi/libstub/arm64: link stub lib.a conditionally
Date: Thu,  4 Jun 2020 11:20:30 +0900
Message-ID: <> (raw)

Since commit 799c43415442 ("kbuild: thin archives make default for
all archs"), core-y is passed to the linker with --whole-archive.
Hence, the whole of stub library is linked to vmlinux.

Use libs-y so that lib.a is passed after --no-whole-archive for
conditional linking.

The unused drivers/firmware/efi/libstub/relocate.o will be dropped
for ARCH=arm64.

Signed-off-by: Masahiro Yamada <>

This patch touches under arch/arm64/, but
this is more related to efi.
I am sending this to Ard.

 arch/arm64/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 650e1185c190..48a6afa774fc 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -145,7 +145,7 @@ export	TEXT_OFFSET
 core-y		+= arch/arm64/
 libs-y		:= arch/arm64/lib/ $(libs-y)
-core-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a
+libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a
 # Default target when executing plain make
 boot		:= arch/arm64/boot

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Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-04  2:20 Masahiro Yamada [this message]
2020-06-10  7:58 ` Will Deacon
2020-06-10  8:00   ` Ard Biesheuvel
2020-06-10  8:42     ` Will Deacon

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