The generic CC_CAN_LINK detection does not handle different byte orders. This may lead to userprogs which are not actually runnable on the target kernel.
Use architecture-specific logic supporting byte orders instead. Signed-off-by: Thomas Weißschuh <[email protected]> --- arch/powerpc/Kconfig | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 9537a61ebae0..6bb2f90e97ea 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -127,6 +127,7 @@ config PPC select ARCH_DMA_DEFAULT_COHERENT if !NOT_COHERENT_CACHE select ARCH_ENABLE_MEMORY_HOTPLUG select ARCH_ENABLE_MEMORY_HOTREMOVE + select ARCH_HAS_CC_CAN_LINK select ARCH_HAS_COPY_MC if PPC64 select ARCH_HAS_CURRENT_STACK_POINTER select ARCH_HAS_DEBUG_VIRTUAL @@ -1342,6 +1343,20 @@ endif config PPC_LIB_RHEAP bool +config ARCH_CC_CAN_LINK + bool + default $(cc_can_link_user,$(m64-flag) -mlittle-endian) if 64BIT && CPU_LITTLE_ENDIAN + default $(cc_can_link_user,$(m64-flag) -mbig-endian) if 64BIT && CPU_BIG_ENDIAN + default $(cc_can_link_user,$(m32-flag) -mlittle-endian) if CPU_LITTLE_ENDIAN + default $(cc_can_link_user,$(m32-flag) -mbig-endian) if CPU_BIG_ENDIAN + +config ARCH_USERFLAGS + string + default "$(m64-flag) -mlittle-endian" if 64BIT && CPU_LITTLE_ENDIAN + default "$(m64-flag) -mbig-endian" if 64BIT && CPU_BIG_ENDIAN + default "$(m32-flag) -mlittle-endian" if CPU_LITTLE_ENDIAN + default "$(m32-flag) -mbig-endian" if CPU_BIG_ENDIAN + source "arch/powerpc/kvm/Kconfig" source "kernel/livepatch/Kconfig" --- base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8 change-id: 20251222-cc-can-link-powerpc-5ddd2469fd5b Best regards, -- Thomas Weißschuh <[email protected]>
