powerpc/64: Linker on-demand sfpr functions for modules (efe0160c) · Commits · 戴 / test

arch/powerpc/Makefile

+10 −0

Original line number	Diff line number	Diff line
		@@ -189,7 +189,17 @@ else
		CHECKFLAGS += -D__LITTLE_ENDIAN__
		endif

		ifdef CONFIG_PPC32
		KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
		else
		ifeq ($(call ld-ifversion, -ge, 225000000, y),y)
		# Have the linker provide sfpr if possible.
		# There is a corresponding test in arch/powerpc/lib/Makefile
		KBUILD_LDFLAGS_MODULE += --save-restore-funcs
		else
		KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
		endif
		endif

		ifeq ($(CONFIG_476FPE_ERR46),y)
		KBUILD_LDFLAGS_MODULE += --ppc476-workaround \

+8 −5

Original line number	Diff line number	Diff line
		@@ -11,12 +11,15 @@ CFLAGS_REMOVE_feature-fixups.o = $(CC_FLAGS_FTRACE)

		obj-y += string.o alloc.o code-patching.o feature-fixups.o

		obj-$(CONFIG_PPC32) += div64.o copy_32.o crtsavres.o

		# See corresponding test in arch/powerpc/Makefile
		# 64-bit linker creates .sfpr on demand for final link (vmlinux),
		# so it is only needed for modules.
		obj-$(CONFIG_PPC32) += crtsavres.o
		# so it is only needed for modules, and only for older linkers which
		# do not support --save-restore-funcs
		ifeq ($(call ld-ifversion, -lt, 225000000, y),y)
		extra-$(CONFIG_PPC64) += crtsavres.o

		obj-$(CONFIG_PPC32) += div64.o copy_32.o
		endif

		obj64-y += copypage_64.o copyuser_64.o mem_64.o hweight_64.o \
		copyuser_power7.o string_64.o copypage_power7.o memcpy_power7.o \