linux-kernel - [PATCH 08/11] s390/boot: vmlinux.lds.S: Handle ELF required sections

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Message-Id: <20240207-s390-lld-and-orphan-warn-v1-8-8a665b3346ab@kernel.org>
Date: Wed, 07 Feb 2024 17:15:00 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: hca@...ux.ibm.com, gor@...ux.ibm.com, agordeev@...ux.ibm.com
Cc: borntraeger@...ux.ibm.com, svens@...ux.ibm.com, maskray@...gle.com, 
 ndesaulniers@...gle.com, linux-s390@...r.kernel.org, 
 linux-kernel@...r.kernel.org, llvm@...ts.linux.dev, patches@...ts.linux.dev, 
 Nathan Chancellor <nathan@...nel.org>
Subject: [PATCH 08/11] s390/boot: vmlinux.lds.S: Handle ELF required
 sections

When building with CONFIG_LD_ORPHAN_WARN after selecting
CONFIG_ARCH_HAS_LD_ORPHAN_WARN, there is a warning around the '.comment'
section for each file in arch/s390/boot

  s390-linux-ld: warning: orphan section `.comment' from `arch/s390/boot/als.o' being placed in section `.comment'
  s390-linux-ld: warning: orphan section `.comment' from `arch/s390/boot/startup.o' being placed in section `.comment'
  s390-linux-ld: warning: orphan section `.comment' from `arch/s390/boot/physmem_info.o' being placed in section `.comment'

include/asm-generic/vmlinux.lds.h has a macro for required ELF sections
not related to debugging named ELF_DETAILS, use it to clear up the
warnings.

Signed-off-by: Nathan Chancellor <nathan@...nel.org>
---
 arch/s390/boot/vmlinux.lds.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/s390/boot/vmlinux.lds.S b/arch/s390/boot/vmlinux.lds.S
index 83af17bfe630..2bef450e84e9 100644
--- a/arch/s390/boot/vmlinux.lds.S
+++ b/arch/s390/boot/vmlinux.lds.S
@@ -123,6 +123,7 @@ SECTIONS
 	_end = .;
 
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	/*
 	 * Sections that should stay zero sized, which is safer to

-- 
2.43.0