On Wed, Jun 11, 2025 at 4:38 PM Thomas Weißschuh <[email protected]> wrote: > > Make sure the byte order and ABI of the userprogs matches the one of the > kernel, similar to how the bit size is handled. > Otherwise the userprogs may not be executable. > This happens for example on powerpc little endian, or riscv32. > > Signed-off-by: Thomas Weißschuh <[email protected]> > --- > Makefile | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/Makefile b/Makefile > index > c4293cf91e968ca8ee64452841fb266e24df63f6..b9aa1058321dabd3b3dd5610e45a2807dfa257f4 > 100644 > --- a/Makefile > +++ b/Makefile > @@ -1129,8 +1129,8 @@ ifneq ($(CONFIG_ARCH_VMLINUX_NEEDS_RELOCS),) > LDFLAGS_vmlinux += --emit-relocs --discard-none > endif > > -# Align the bit size of userspace programs with the kernel > -USERFLAGS_FROM_KERNEL := -m32 -m64 --target=% > +# Align the bit size, byte order and architecture of userspace programs with > the kernel > +USERFLAGS_FROM_KERNEL := -m32 -m64 -mlittle-endian -mbig-endian --target=% > -march=% -mabi=% > KBUILD_USERCFLAGS += $(filter $(USERFLAGS_FROM_KERNEL), $(KBUILD_CPPFLAGS) > $(KBUILD_CFLAGS)) > KBUILD_USERLDFLAGS += $(filter $(USERFLAGS_FROM_KERNEL), $(KBUILD_CPPFLAGS) > $(KBUILD_CFLAGS))
Why didn't you do like this? USERFLAGS_FROM_KERNEL := $(filter -m32 -m64 -mlittle-endian -mbig-endian --target=% -march=% -mabi=%, $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)) KBUILD_USERCFLAGS += $(USERFLAGS_FROM_KERNEL) KBUILD_USERLDFLAGS += $(USERFLAGS_FROM_KERNEL) -- Best Regards Masahiro Yamada
