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- # SPDX-License-Identifier: GPL-2.0
- core-y += arch/x86/crypto/
- #
- # Disable SSE and other FP/SIMD instructions to match normal x86
- # This is required to work around issues in older LLVM versions, but breaks
- # GCC versions < 11. See:
- # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99652
- #
- ifeq ($(CONFIG_CC_IS_CLANG),y)
- KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx
- KBUILD_RUSTFLAGS += -Ctarget-feature=-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2
- endif
- ifeq ($(CONFIG_X86_32),y)
- START := 0x8048000
- KBUILD_LDFLAGS += -m elf_i386
- ELF_ARCH := i386
- ELF_FORMAT := elf32-i386
- CHECKFLAGS += -D__i386__
- KBUILD_CFLAGS += $(call cc-option,-m32)
- KBUILD_AFLAGS += $(call cc-option,-m32)
- LINK-y += $(call cc-option,-m32)
- LDS_EXTRA := -Ui386
- export LDS_EXTRA
- # First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
- include arch/x86/Makefile_32.cpu
- # prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
- cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
- # Prevent sprintf in nfsd from being converted to strcpy and resulting in
- # an unresolved reference.
- cflags-y += -ffreestanding
- KBUILD_CFLAGS += $(cflags-y)
- else
- START := 0x60000000
- KBUILD_CFLAGS += -fno-builtin -m64
- CHECKFLAGS += -m64 -D__x86_64__
- KBUILD_AFLAGS += -m64
- KBUILD_LDFLAGS += -m elf_x86_64
- KBUILD_CPPFLAGS += -m64
- ELF_ARCH := i386:x86-64
- ELF_FORMAT := elf64-x86-64
- # Not on all 64-bit distros /lib is a symlink to /lib64. PLD is an example.
- LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpath,/lib64
- LINK-y += -m64
- endif
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