linux-kernel - [PATCH] ARM: decompressor: simplify the path to the top vmlinux

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Message-Id: <20230314074351.1181502-1-masahiroy@kernel.org>
Date:   Tue, 14 Mar 2023 16:43:51 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     patches@...linux.org.uk
Cc:     Masahiro Yamada <masahiroy@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: decompressor: simplify the path to the top vmlinux

With commit 8debed3efe3a ("kbuild: export top-level LDFLAGS_vmlinux
only to scripts/Makefile.vmlinux") applied, we no longer see the error
message while building the ARM zImage, but we do not have a good reason
to complicate the file path either.

'$(obj)/../../../../vmlinux' is canonicalized to 'vmlinux'.

Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---

KernelVersion: v6.3-rc1

 arch/arm/boot/compressed/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 2ef651a78fa2..726ecabcef09 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -107,7 +107,7 @@ ccflags-remove-$(CONFIG_FUNCTION_TRACER) += -pg
 asflags-y := -DZIMAGE
 
 # Supply kernel BSS size to the decompressor via a linker symbol.
-KBSS_SZ = $(shell echo $$(($$($(NM) $(obj)/../../../../vmlinux | \
+KBSS_SZ = $(shell echo $$(($$($(NM) vmlinux | \
 		sed -n -e 's/^\([^ ]*\) [ABD] __bss_start$$/-0x\1/p' \
 		       -e 's/^\([^ ]*\) [ABD] __bss_stop$$/+0x\1/p') )) )
 LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ)
-- 
2.34.1