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authorMasahiro Yamada <masahiroy@kernel.org>2020-12-13 01:54:30 +0900
committerMasahiro Yamada <masahiroy@kernel.org>2021-02-12 05:12:31 +0900
commit052c805a1851a4415f9e2adfa9654a0b793e0c45 (patch)
tree7849374df6d7c83a8d3f27f1f86383162aa3ed68
parent83272e6d4765df775e43d5fc4797b4b3fe9a97fa (diff)
kbuild: LD_VERSION redenomination
Commit ccbef1674a15 ("Kbuild, lto: add ld-version and ld-ifversion macros") introduced scripts/ld-version.sh for GCC LTO. At that time, this script handled 5 version fields because GCC LTO needed the downstream binutils. (https://lkml.org/lkml/2014/4/8/272) The code snippet from the submitted patch was as follows: # We need HJ Lu's Linux binutils because mainline binutils does not # support mixing assembler and LTO code in the same ld -r object. # XXX check if the gcc plugin ld is the expected one too # XXX some Fedora binutils should also support it. How to check for that? ifeq ($(call ld-ifversion,-ge,22710001,y),y) ... However, GCC LTO was not merged into the mainline after all. (https://lkml.org/lkml/2014/4/8/272) So, the 4th and 5th fields were never used, and finally removed by commit 0d61ed17dd30 ("ld-version: Drop the 4th and 5th version components"). Since then, the last 4-digits returned by this script is always zeros. Remove the meaningless last 4-digits. This makes the version format consistent with GCC_VERSION, CLANG_VERSION, LLD_VERSION. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Will Deacon <will@kernel.org> Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
-rw-r--r--arch/arm64/Kconfig2
-rw-r--r--arch/mips/loongson64/Platform2
-rw-r--r--arch/mips/vdso/Kconfig2
-rw-r--r--arch/powerpc/Makefile2
-rw-r--r--arch/powerpc/lib/Makefile2
-rwxr-xr-xscripts/ld-version.sh2
6 files changed, 6 insertions, 6 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index f39568b28ec1..bbe72c6aec7f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1477,7 +1477,7 @@ config ARM64_PTR_AUTH
depends on (CC_HAS_SIGN_RETURN_ADDRESS || CC_HAS_BRANCH_PROT_PAC_RET) && AS_HAS_PAC
# Modern compilers insert a .note.gnu.property section note for PAC
# which is only understood by binutils starting with version 2.33.1.
- depends on LD_IS_LLD || LD_VERSION >= 233010000 || (CC_IS_GCC && GCC_VERSION < 90100)
+ depends on LD_IS_LLD || LD_VERSION >= 23301 || (CC_IS_GCC && GCC_VERSION < 90100)
depends on !CC_IS_CLANG || AS_HAS_CFI_NEGATE_RA_STATE
depends on (!FUNCTION_GRAPH_TRACER || DYNAMIC_FTRACE_WITH_REGS)
help
diff --git a/arch/mips/loongson64/Platform b/arch/mips/loongson64/Platform
index ec42c5085905..cc0b9c87f9ad 100644
--- a/arch/mips/loongson64/Platform
+++ b/arch/mips/loongson64/Platform
@@ -35,7 +35,7 @@ cflags-$(CONFIG_CPU_LOONGSON64) += $(call as-option,-Wa$(comma)-mno-fix-loongson
# can't easily be used safely within the kbuild framework.
#
ifeq ($(call cc-ifversion, -ge, 0409, y), y)
- ifeq ($(call ld-ifversion, -ge, 225000000, y), y)
+ ifeq ($(call ld-ifversion, -ge, 22500, y), y)
cflags-$(CONFIG_CPU_LOONGSON64) += \
$(call cc-option,-march=loongson3a -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64)
else
diff --git a/arch/mips/vdso/Kconfig b/arch/mips/vdso/Kconfig
index 7aec721398d5..a665f6108cb5 100644
--- a/arch/mips/vdso/Kconfig
+++ b/arch/mips/vdso/Kconfig
@@ -12,7 +12,7 @@
# the lack of relocations. As such, we disable the VDSO for microMIPS builds.
config MIPS_LD_CAN_LINK_VDSO
- def_bool LD_VERSION >= 225000000 || LD_IS_LLD
+ def_bool LD_VERSION >= 22500 || LD_IS_LLD
config MIPS_DISABLE_VDSO
def_bool CPU_MICROMIPS || (!CPU_MIPSR6 && !MIPS_LD_CAN_LINK_VDSO)
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 08cf0eade56a..66a814e3b207 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -65,7 +65,7 @@ UTS_MACHINE := $(subst $(space),,$(machine-y))
ifdef CONFIG_PPC32
KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
else
-ifeq ($(call ld-ifversion, -ge, 225000000, y),y)
+ifeq ($(call ld-ifversion, -ge, 22500, 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
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 69a91b571845..d4efc182662a 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -31,7 +31,7 @@ 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, 225000000, y),y)
+ifeq ($(call ld-ifversion, -lt, 22500, y),y)
extra-$(CONFIG_PPC64) += crtsavres.o
endif
diff --git a/scripts/ld-version.sh b/scripts/ld-version.sh
index f2be0ff9a738..0f8a2c0f9502 100755
--- a/scripts/ld-version.sh
+++ b/scripts/ld-version.sh
@@ -6,6 +6,6 @@
gsub(".*version ", "");
gsub("-.*", "");
split($1,a, ".");
- print a[1]*100000000 + a[2]*1000000 + a[3]*10000;
+ print a[1]*10000 + a[2]*100 + a[3];
exit
}

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