Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
riscv: Unconditionally use linker relaxation
Now that the minimum supported version of LLVM for building the kernel
has been bumped to 15.0.0, CONFIG_RISCV_USE_LINKER_RELAXATION will
always be enabled, so it can be removed.
Acked-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20250821-bump-min-llvm-ver-15-v2-8-635f3294e5f0@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
+1
-14
-6
arch/riscv/Kconfig
-6
arch/riscv/Kconfig
···
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# https://github.com/riscv-non-isa/riscv-elf-psabi-doc/commit/a484e843e6eeb51f0cb7b8819e50da6d2444d769
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depends on $(ld-option,--no-relax-gp)
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-
config RISCV_USE_LINKER_RELAXATION
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-
def_bool y
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-
# https://github.com/llvm/llvm-project/commit/6611d58f5bbcbec77262d392e2923e1d680f6985
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-
depends on !LD_IS_LLD || LLD_VERSION >= 150000
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-
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# https://github.com/llvm/llvm-project/commit/bbc0f99f3bc96f1db16f649fc21dd18e5b0918f6
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config ARCH_HAS_BROKEN_DWARF5
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def_bool y
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-
depends on RISCV_USE_LINKER_RELAXATION
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# https://github.com/llvm/llvm-project/commit/1df5ea29b43690b6622db2cad7b745607ca4de6a
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depends on AS_IS_LLVM && AS_VERSION < 180000
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# https://github.com/llvm/llvm-project/commit/7ffabb61a5569444b5ac9322e22e5471cc5e4a77
+1
-8
arch/riscv/Makefile
+1
-8
arch/riscv/Makefile
···
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KBUILD_LDFLAGS += -melf32lriscv
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endif
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-
ifndef CONFIG_RISCV_USE_LINKER_RELAXATION
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KBUILD_CFLAGS += -mno-relax
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KBUILD_AFLAGS += -mno-relax
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ifndef CONFIG_AS_IS_LLVM
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KBUILD_CFLAGS += -Wa,-mno-relax
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KBUILD_AFLAGS += -Wa,-mno-relax
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-
endif
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# LLVM has an issue with target-features and LTO: https://github.com/llvm/llvm-project/issues/59350
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# Ensure it is aware of linker relaxation with LTO, otherwise relocations may
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# be incorrect: https://github.com/llvm/llvm-project/issues/65090
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-
else ifeq ($(CONFIG_LTO_CLANG),y)
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+
ifeq ($(CONFIG_LTO_CLANG),y)
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KBUILD_LDFLAGS += -mllvm -mattr=+c -mllvm -mattr=+relax
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endif
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