Commit e7607f7d6d81 ("ARM: 9443/1: Require linker to support KEEP within OVERLAY for DCE") accidentally broke the binutils version restriction that was added in commit 0d437918fb64 ("ARM: 9414/1: Fix build issue with LD_DEAD_CODE_DATA_ELIMINATION"), reintroducing the segmentation fault addressed by that workaround.
Restore the binutils version dependency by using CONFIG_LD_CAN_USE_KEEP_IN_OVERLAY as an additional condition to ensure that CONFIG_HAVE_LD_DEAD_CODE_DATA_ELIMINATION is only enabled with binutils >= 2.36 and ld.lld >= 21.0.0.
Cc: stable@vger.kernel.org Fixes: e7607f7d6d81 ("ARM: 9443/1: Require linker to support KEEP within OVERLAY for DCE") Reported-by: Rob Landley rob@landley.net Closes: https://lore.kernel.org/6739da7d-e555-407a-b5cb-e5681da71056@landley.net/ Tested-by: Rob Landley rob@landley.net Signed-off-by: Nathan Chancellor nathan@kernel.org --- arch/arm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 3072731fe09c..962451e54fdd 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -121,7 +121,7 @@ config ARM select HAVE_KERNEL_XZ select HAVE_KPROBES if !XIP_KERNEL && !CPU_ENDIAN_BE32 && !CPU_V7M select HAVE_KRETPROBES if HAVE_KPROBES - select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if (LD_VERSION >= 23600 || LD_CAN_USE_KEEP_IN_OVERLAY) + select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if (LD_VERSION >= 23600 || LD_IS_LLD) && LD_CAN_USE_KEEP_IN_OVERLAY select HAVE_MOD_ARCH_SPECIFIC select HAVE_NMI select HAVE_OPTPROBES if !THUMB2_KERNEL
--- base-commit: d7b8f8e20813f0179d8ef519541a3527e7661d3a change-id: 20250707-arm-fix-dce-older-binutils-87a5a4b829d9
Best regards, -- Nathan Chancellor nathan@kernel.org