Merge branch 'kvm-arm64/el2-obj-v4.1' into kvmarm-master/next

$(obj)/%.hyp.o: $(obj)/%.hyp.tmp.o FORCE

	$(call if_changed,hypcopy)

# Disable reordering functions by GCC (enabled at -O2).

# This pass puts functions into '.text.*' sections to aid the linker

# in optimizing ELF layout. See HYPCOPY comment below for more info.

ccflags-y += $(call cc-option,-fno-reorder-functions)

# The HYPCOPY command uses `objcopy` to prefix all ELF symbol names

# and relevant ELF section names to avoid clashes with VHE code/data.

#

# Hyp code is assumed to be in the '.text' section of the input object

# files (with the exception of specialized sections such as

# '.hyp.idmap.text'). This assumption may be broken by a compiler that

# divides code into sections like '.text.unlikely' so as to optimize

# ELF layout. HYPCOPY checks that no such sections exist in the input

# using `objdump`, otherwise they would be linked together with other

# kernel code and not memory-mapped correctly at runtime.

quiet_cmd_hypcopy = HYPCOPY $@

      cmd_hypcopy = $(OBJCOPY)	--prefix-symbols=__kvm_nvhe_		\

      cmd_hypcopy =							\

	if $(OBJDUMP) -h $< | grep -F '.text.'; then			\

		echo "$@: function reordering not supported in nVHE hyp code" >&2; \

		/bin/false;						\

	fi;								\

	$(OBJCOPY) --prefix-symbols=__kvm_nvhe_				\

		   --rename-section=.text=.hyp.text			\

		   $< $@