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powerpc: remove checks for binutils older than 2.25 

Commit e441273947 ("Documentation: raise minimum supported version of
binutils to 2.25") allows us to remove the checks for old binutils.

There is no more user for ld-ifversion. Remove it as well.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230119082250.151485-1-masahiroy@kernel.org
This commit is contained in:
Masahiro Yamada 2023-01-19 17:22:50 +09:00 committed by Michael Ellerman
parent 25ea739ea1
commit 54a11654de
3 changed files with 2 additions and 21 deletions
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17
arch/powerpc/Makefile
View File

@ -42,18 +42,13 @@ machine-$(CONFIG_PPC64) += 64
machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le
UTS_MACHINE := $(subst $(space),,$(machine-y))
# XXX This needs to be before we override LD below
ifdef CONFIG_PPC32
KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
else
ifeq ($(call ld-ifversion, -ge, 22500, y),y)
ifeq ($(CONFIG_PPC64)$(CONFIG_LD_IS_BFD),yy)
# Have the linker provide sfpr if possible.
# There is a corresponding test in arch/powerpc/lib/Makefile
KBUILD_LDFLAGS_MODULE += --save-restore-funcs
else
KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
endif
endif
ifdef CONFIG_CPU_LITTLE_ENDIAN
KBUILD_CFLAGS += -mlittle-endian
@ -398,17 +393,7 @@ endif
endif
PHONY += checkbin
# Check toolchain versions:
# - gcc-4.6 is the minimum kernel-wide version so nothing required.
checkbin:
@if test "x${CONFIG_LD_IS_LLD}" != "xy" -a \
"x$(call ld-ifversion, -le, 22400, y)" = "xy" ; then \
echo -n '*** binutils 2.24 miscompiles weak symbols ' ; \
echo 'in some circumstances.' ; \
echo '*** binutils 2.23 do not define the TOC symbol ' ; \
echo -n '*** Please use a different binutils version.' ; \
false ; \
fi
@if test "x${CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT}" = "xy" -a \
"x${CONFIG_LD_IS_BFD}" = "xy" -a \
"${CONFIG_LD_VERSION}" = "23700" ; then \

2
arch/powerpc/lib/Makefile
View File

@ -44,7 +44,7 @@ obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o
# 64-bit linker creates .sfpr on demand for final link (vmlinux),
# so it is only needed for modules, and only for older linkers which
# do not support --save-restore-funcs
ifeq ($(call ld-ifversion, -lt, 22500, y),y)
ifndef CONFIG_LD_IS_BFD
extra-$(CONFIG_PPC64) += crtsavres.o
endif

4
scripts/Makefile.compiler
View File

@ -72,7 +72,3 @@ clang-min-version = $(call test-ge, $(CONFIG_CLANG_VERSION), $1)
# ld-option
# Usage: KBUILD_LDFLAGS += $(call ld-option, -X, -Y)
ld-option = $(call try-run, $(LD) $(KBUILD_LDFLAGS) $(1) -v,$(1),$(2),$(3))
# ld-ifversion
# Usage: $(call ld-ifversion, -ge, 22252, y)
ld-ifversion = $(shell [ $(CONFIG_LD_VERSION)0 $(1) $(2)0 ] && echo $(3) || echo $(4))