[PATCH 09/11] s390/boot: vmlinux.lds.S: Handle commonly discarded sections

Nathan Chancellor
2024-02-08T00:15:12Z

When building with CONFIG_LD_ORPHAN_WARN after selecting
CONFIG_ARCH_HAS_LD_ORPHAN_WARN, there are several series of warnings
from the various discardable sections that the kernel adds for build
purposes that are not needed at runtime:

s390-linux-ld: warning: orphan section `.export_symbol' from `arch/s390/boot/decompressor.o' being placed in section `.export_symbol'
s390-linux-ld: warning: orphan section `.discard.addressable' from `arch/s390/boot/decompressor.o' being placed in section `.discard.addressable'
s390-linux-ld: warning: orphan section `.modinfo' from `arch/s390/boot/decompressor.o' being placed in section `.modinfo'

include/asm-generic/vmlinux.lds.h has a macro for easily discarding
these sections across the kernel named COMMON_DISCARDS, use it to clear
up the warnings.

Signed-off-by: Nathan Chancellor <nathan@kernel.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 2bef450e84e9..806bca35e3f1 100644
--- a/arch/s390/boot/vmlinux.lds.S
+++ b/arch/s390/boot/vmlinux.lds.S
@@ -147,6 +147,7 @@ SECTIONS

/* Sections to be discarded */
/DISCARD/ : {
+ COMMON_DISCARDS
*(.eh_frame)
*(__ex_table)
*(*__ksymtab*)

--
2.43.0