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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-11 09:46:12 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-11 09:46:12 -0700 |
commit | b753101a4ac0b906064a72feec43f5b80a1fe2e5 (patch) | |
tree | 90f8f851a5de81d17f2154526a13d91f07075bad | |
parent | c7850ae4d71c48ab352bb4245bc24f7e984fe721 (diff) | |
parent | 00d76a0c19436c88ffcafa1e816f0c0c9af082a0 (diff) | |
download | linux-stable-b753101a4ac0b906064a72feec43f5b80a1fe2e5.tar.gz linux-stable-b753101a4ac0b906064a72feec43f5b80a1fe2e5.tar.bz2 linux-stable-b753101a4ac0b906064a72feec43f5b80a1fe2e5.zip |
Merge tag 'kbuild-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- raise minimum supported binutils version to 2.23
- remove old CONFIG_AS_* macros that we know binutils >= 2.23 supports
- move remaining CONFIG_AS_* tests to Kconfig from Makefile
- enable -Wtautological-compare warnings to catch more issues
- do not support GCC plugins for GCC <= 4.7
- fix various breakages of 'make xconfig'
- include the linker version used for linking the kernel into
LINUX_COMPILER, which is used for the banner, and also exposed to
/proc/version
- link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y, which
allows us to remove the lib-ksyms.o workaround, and to solve the last
known issue of the LLVM linker
- add dummy tools in scripts/dummy-tools/ to enable all compiler tests
in Kconfig, which will be useful for distro maintainers
- support the single switch, LLVM=1 to use Clang and all LLVM utilities
instead of GCC and Binutils.
- support LLVM_IAS=1 to enable the integrated assembler, which is still
experimental
* tag 'kbuild-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (36 commits)
kbuild: fix comment about missing include guard detection
kbuild: support LLVM=1 to switch the default tools to Clang/LLVM
kbuild: replace AS=clang with LLVM_IAS=1
kbuild: add dummy toolchains to enable all cc-option etc. in Kconfig
kbuild: link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y
MIPS: fw: arc: add __weak to prom_meminit and prom_free_prom_memory
kbuild: remove -I$(srctree)/tools/include from scripts/Makefile
kbuild: do not pass $(KBUILD_CFLAGS) to scripts/mkcompile_h
Documentation/llvm: fix the name of llvm-size
kbuild: mkcompile_h: Include $LD version in /proc/version
kconfig: qconf: Fix a few alignment issues
kconfig: qconf: remove some old bogus TODOs
kconfig: qconf: fix support for the split view mode
kconfig: qconf: fix the content of the main widget
kconfig: qconf: Change title for the item window
kconfig: qconf: clean deprecated warnings
gcc-plugins: drop support for GCC <= 4.7
kbuild: Enable -Wtautological-compare
x86: update AS_* macros to binutils >=2.23, supporting ADX and AVX2
crypto: x86 - clean up poly1305-x86_64-cryptogams.S by 'make clean'
...
61 files changed, 384 insertions, 519 deletions
diff --git a/Documentation/kbuild/kbuild.rst b/Documentation/kbuild/kbuild.rst index 510f38d7e78a..2d1fc03d346e 100644 --- a/Documentation/kbuild/kbuild.rst +++ b/Documentation/kbuild/kbuild.rst @@ -262,3 +262,8 @@ KBUILD_BUILD_USER, KBUILD_BUILD_HOST These two variables allow to override the user@host string displayed during boot and in /proc/version. The default value is the output of the commands whoami and host, respectively. + +LLVM +---- +If this variable is set to 1, Kbuild will use Clang and LLVM utilities instead +of GCC and GNU binutils to build the kernel. diff --git a/Documentation/kbuild/llvm.rst b/Documentation/kbuild/llvm.rst index d6c79eb4e23e..c776b6eee969 100644 --- a/Documentation/kbuild/llvm.rst +++ b/Documentation/kbuild/llvm.rst @@ -47,14 +47,21 @@ example: LLVM Utilities -------------- -LLVM has substitutes for GNU binutils utilities. These can be invoked as -additional parameters to `make`. +LLVM has substitutes for GNU binutils utilities. Kbuild supports `LLVM=1` +to enable them. - make CC=clang AS=clang LD=ld.lld AR=llvm-ar NM=llvm-nm STRIP=llvm-strip \\ - OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump OBJSIZE=llvm-objsize \\ + make LLVM=1 + +They can be enabled individually. The full list of the parameters: + + make CC=clang LD=ld.lld AR=llvm-ar NM=llvm-nm STRIP=llvm-strip \\ + OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump OBJSIZE=llvm-size \\ READELF=llvm-readelf HOSTCC=clang HOSTCXX=clang++ HOSTAR=llvm-ar \\ HOSTLD=ld.lld +Currently, the integrated assembler is disabled by default. You can pass +`LLVM_IAS=1` to enable it. + Getting Help ------------ diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst index e47863575917..91c5ff8e161e 100644 --- a/Documentation/process/changes.rst +++ b/Documentation/process/changes.rst @@ -31,7 +31,7 @@ you probably needn't concern yourself with pcmciautils. ====================== =============== ======================================== GNU C 4.6 gcc --version GNU make 3.81 make --version -binutils 2.21 ld -v +binutils 2.23 ld -v flex 2.5.35 flex --version bison 2.0 bison --version util-linux 2.10o fdformat --version @@ -76,7 +76,7 @@ You will need GNU make 3.81 or later to build the kernel. Binutils -------- -Binutils 2.21 or newer is needed to build the kernel. +Binutils 2.23 or newer is needed to build the kernel. pkg-config ---------- @@ -399,8 +399,13 @@ HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null) HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null) HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null) -HOSTCC = gcc -HOSTCXX = g++ +ifneq ($(LLVM),) +HOSTCC = clang +HOSTCXX = clang++ +else +HOSTCC = gcc +HOSTCXX = g++ +endif KBUILD_HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \ -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) \ $(HOSTCFLAGS) @@ -409,16 +414,28 @@ KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS) KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS) # Make variables (CC, etc...) -LD = $(CROSS_COMPILE)ld -CC = $(CROSS_COMPILE)gcc CPP = $(CC) -E +ifneq ($(LLVM),) +CC = clang +LD = ld.lld +AR = llvm-ar +NM = llvm-nm +OBJCOPY = llvm-objcopy +OBJDUMP = llvm-objdump +READELF = llvm-readelf +OBJSIZE = llvm-size +STRIP = llvm-strip +else +CC = $(CROSS_COMPILE)gcc +LD = $(CROSS_COMPILE)ld AR = $(CROSS_COMPILE)ar NM = $(CROSS_COMPILE)nm -STRIP = $(CROSS_COMPILE)strip OBJCOPY = $(CROSS_COMPILE)objcopy OBJDUMP = $(CROSS_COMPILE)objdump -OBJSIZE = $(CROSS_COMPILE)size READELF = $(CROSS_COMPILE)readelf +OBJSIZE = $(CROSS_COMPILE)size +STRIP = $(CROSS_COMPILE)strip +endif PAHOLE = pahole LEX = flex YACC = bison @@ -538,7 +555,7 @@ endif ifneq ($(GCC_TOOLCHAIN),) CLANG_FLAGS += --gcc-toolchain=$(GCC_TOOLCHAIN) endif -ifeq ($(if $(AS),$(shell $(AS) --version 2>&1 | head -n 1 | grep clang)),) +ifneq ($(LLVM_IAS),1) CLANG_FLAGS += -no-integrated-as endif CLANG_FLAGS += -Werror=unknown-warning-option @@ -747,8 +764,6 @@ ifdef CONFIG_CC_IS_CLANG KBUILD_CPPFLAGS += -Qunused-arguments KBUILD_CFLAGS += -Wno-format-invalid-specifier KBUILD_CFLAGS += -Wno-gnu -# Quiet clang warning: comparison of unsigned expression < 0 is always false -KBUILD_CFLAGS += -Wno-tautological-compare # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the # source of a reference will be _MergedGlobals and not on of the whitelisted names. # See modpost pattern 2 @@ -1036,8 +1051,13 @@ init-y := $(patsubst %/, %/built-in.a, $(init-y)) core-y := $(patsubst %/, %/built-in.a, $(core-y)) drivers-y := $(patsubst %/, %/built-in.a, $(drivers-y)) net-y := $(patsubst %/, %/built-in.a, $(net-y)) +libs-y2 := $(patsubst %/, %/built-in.a, $(filter %/, $(libs-y))) +ifdef CONFIG_MODULES +libs-y1 := $(filter-out %/, $(libs-y)) +libs-y2 += $(patsubst %/, %/lib.a, $(filter %/, $(libs-y))) +else libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) -libs-y2 := $(patsubst %/, %/built-in.a, $(filter-out %.a, $(libs-y))) +endif virt-y := $(patsubst %/, %/built-in.a, $(virt-y)) # Externally visible symbols (used by link-vmlinux.sh) diff --git a/arch/h8300/include/uapi/asm/bitsperlong.h b/arch/h8300/include/uapi/asm/bitsperlong.h deleted file mode 100644 index a33e358f1c1b..000000000000 --- a/arch/h8300/include/uapi/asm/bitsperlong.h +++ /dev/null @@ -1,15 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _UAPI__ASM_H8300_BITS_PER_LONG -#define _UAPI__ASM_H8300_BITS_PER_LONG - -#include <asm-generic/bitsperlong.h> - -#if !defined(__ASSEMBLY__) -/* h8300-unknown-linux required long */ -#define __kernel_size_t __kernel_size_t -typedef unsigned long __kernel_size_t; -typedef long __kernel_ssize_t; -typedef long __kernel_ptrdiff_t; -#endif - -#endif /* _UAPI__ASM_H8300_BITS_PER_LONG */ diff --git a/arch/h8300/include/uapi/asm/posix_types.h b/arch/h8300/include/uapi/asm/posix_types.h new file mode 100644 index 000000000000..3efc9dd59476 --- /dev/null +++ b/arch/h8300/include/uapi/asm/posix_types.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ +#ifndef _UAPI_ASM_POSIX_TYPES_H +#define _UAPI_ASM_POSIX_TYPES_H + +/* h8300-unknown-linux required long */ +#define __kernel_size_t __kernel_size_t +typedef unsigned long __kernel_size_t; +typedef long __kernel_ssize_t; +typedef long __kernel_ptrdiff_t; + +#include <asm-generic/posix_types.h> + +#endif /* _UAPI_ASM_POSIX_TYPES_H */ diff --git a/arch/mips/fw/arc/memory.c b/arch/mips/fw/arc/memory.c index dbbcddc82823..89fa6e62a3b3 100644 --- a/arch/mips/fw/arc/memory.c +++ b/arch/mips/fw/arc/memory.c @@ -117,7 +117,7 @@ static int __init prom_memtype_classify(union linux_memtypes type) return memtype_classify_arc(type); } -void __init prom_meminit(void) +void __weak __init prom_meminit(void) { struct linux_mdesc *p; @@ -162,7 +162,7 @@ void __weak __init prom_cleanup(void) { } -void __init prom_free_prom_memory(void) +void __weak __init prom_free_prom_memory(void) { int i; diff --git a/arch/sh/include/asm/bitops-op32.h b/arch/sh/include/asm/bitops-op32.h index 466880362ad1..cfe5465acce7 100644 --- a/arch/sh/include/asm/bitops-op32.h +++ b/arch/sh/include/asm/bitops-op32.h @@ -16,11 +16,9 @@ #define BYTE_OFFSET(nr) ((nr) % BITS_PER_BYTE) #endif -#define IS_IMMEDIATE(nr) (__builtin_constant_p(nr)) - static inline void __set_bit(int nr, volatile unsigned long *addr) { - if (IS_IMMEDIATE(nr)) { + if (__builtin_constant_p(nr)) { __asm__ __volatile__ ( "bset.b %1, @(%O2,%0) ! __set_bit\n\t" : "+r" (addr) @@ -37,7 +35,7 @@ static inline void __set_bit(int nr, volatile unsigned long *addr) static inline void __clear_bit(int nr, volatile unsigned long *addr) { - if (IS_IMMEDIATE(nr)) { + if (__builtin_constant_p(nr)) { __asm__ __volatile__ ( "bclr.b %1, @(%O2,%0) ! __clear_bit\n\t" : "+r" (addr) @@ -64,7 +62,7 @@ static inline void __clear_bit(int nr, volatile unsigned long *addr) */ static inline void __change_bit(int nr, volatile unsigned long *addr) { - if (IS_IMMEDIATE(nr)) { + if (__builtin_constant_p(nr)) { __asm__ __volatile__ ( "bxor.b %1, @(%O2,%0) ! __change_bit\n\t" : "+r" (addr) diff --git a/arch/sh/include/uapi/asm/setup.h b/arch/sh/include/uapi/asm/setup.h deleted file mode 100644 index 4bd19f80f9b0..000000000000 --- a/arch/sh/include/uapi/asm/setup.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/setup.h> diff --git a/arch/sh/include/uapi/asm/types.h b/arch/sh/include/uapi/asm/types.h deleted file mode 100644 index 68100e108ea6..000000000000 --- a/arch/sh/include/uapi/asm/types.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/types.h> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 0163d764ade4..1d6104ea8af0 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2932,3 +2932,5 @@ config HAVE_ATOMIC_IOMAP source "drivers/firmware/Kconfig" source "arch/x86/kvm/Kconfig" + +source "arch/x86/Kconfig.assembler" diff --git a/arch/x86/Kconfig.assembler b/arch/x86/Kconfig.assembler new file mode 100644 index 000000000000..13de0db38d4e --- /dev/null +++ b/arch/x86/Kconfig.assembler @@ -0,0 +1,17 @@ +# SPDX-License-Identifier: GPL-2.0 +# Copyright (C) 2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. + +config AS_AVX512 + def_bool $(as-instr,vpmovm2b %k1$(comma)%zmm5) + help + Supported by binutils >= 2.25 and LLVM integrated assembler + +config AS_SHA1_NI + def_bool $(as-instr,sha1msg1 %xmm0$(comma)%xmm1) + help + Supported by binutils >= 2.24 and LLVM integrated assembler + +config AS_SHA256_NI + def_bool $(as-instr,sha256msg1 %xmm0$(comma)%xmm1) + help + Supported by binutils >= 2.24 and LLVM integrated assembler diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 513a55562d75..b65ec63c7db7 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -177,28 +177,6 @@ ifeq ($(ACCUMULATE_OUTGOING_ARGS), 1) KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args,) endif -# Stackpointer is addressed different for 32 bit and 64 bit x86 -sp-$(CONFIG_X86_32) := esp -sp-$(CONFIG_X86_64) := rsp - -# do binutils support CFI? -cfi := $(call as-instr,.cfi_startproc\n.cfi_rel_offset $(sp-y)$(comma)0\n.cfi_endproc,-DCONFIG_AS_CFI=1) -# is .cfi_signal_frame supported too? -cfi-sigframe := $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1) -cfi-sections := $(call as-instr,.cfi_sections .debug_frame,-DCONFIG_AS_CFI_SECTIONS=1) - -# does binutils support specific instructions? -asinstr += $(call as-instr,pshufb %xmm0$(comma)%xmm0,-DCONFIG_AS_SSSE3=1) -avx_instr := $(call as-instr,vxorps %ymm0$(comma)%ymm1$(comma)%ymm2,-DCONFIG_AS_AVX=1) -avx2_instr :=$(call as-instr,vpbroadcastb %xmm0$(comma)%ymm1,-DCONFIG_AS_AVX2=1) -avx512_instr :=$(call as-instr,vpmovm2b %k1$(comma)%zmm5,-DCONFIG_AS_AVX512=1) -sha1_ni_instr :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA1_NI=1) -sha256_ni_instr :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA256_NI=1) -adx_instr := $(call as-instr,adox %r10$(comma)%r10,-DCONFIG_AS_ADX=1) - -KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) $(adx_instr) -KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) $(adx_instr) - KBUILD_LDFLAGS := -m elf_$(UTS_MACHINE) # diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile index 8c2e9eadee8a..a31de0c6ccde 100644 --- a/arch/x86/crypto/Makefile +++ b/arch/x86/crypto/Makefile @@ -1,131 +1,97 @@ # SPDX-License-Identifier: GPL-2.0 # -# Arch-specific CryptoAPI modules. -# +# x86 crypto algorithms OBJECT_FILES_NON_STANDARD := y -avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no) -avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\ - $(comma)4)$(comma)%ymm2,yes,no) -avx512_supported :=$(call as-instr,vpmovm2b %k1$(comma)%zmm5,yes,no) -sha1_ni_supported :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,yes,no) -sha256_ni_supported :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,yes,no) -adx_supported := $(call as-instr,adox %r10$(comma)%r10,yes,no) - obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o obj-$(CONFIG_CRYPTO_TWOFISH_586) += twofish-i586.o +twofish-i586-y := twofish-i586-asm_32.o twofish_glue.o +obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o +twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_glue.o +obj-$(CONFIG_CRYPTO_TWOFISH_X86_64_3WAY) += twofish-x86_64-3way.o +twofish-x86_64-3way-y := twofish-x86_64-asm_64-3way.o twofish_glue_3way.o +obj-$(CONFIG_CRYPTO_TWOFISH_AVX_X86_64) += twofish-avx-x86_64.o +twofish-avx-x86_64-y := twofish-avx-x86_64-asm_64.o twofish_avx_glue.o + obj-$(CONFIG_CRYPTO_SERPENT_SSE2_586) += serpent-sse2-i586.o +serpent-sse2-i586-y := serpent-sse2-i586-asm_32.o serpent_sse2_glue.o +obj-$(CONFIG_CRYPTO_SERPENT_SSE2_X86_64) += serpent-sse2-x86_64.o +serpent-sse2-x86_64-y := serpent-sse2-x86_64-asm_64.o serpent_sse2_glue.o +obj-$(CONFIG_CRYPTO_SERPENT_AVX_X86_64) += serpent-avx-x86_64.o +serpent-avx-x86_64-y := serpent-avx-x86_64-asm_64.o serpent_avx_glue.o +obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o +serpent-avx2-y := serpent-avx2-asm_64.o serpent_avx2_glue.o obj-$(CONFIG_CRYPTO_DES3_EDE_X86_64) += des3_ede-x86_64.o +des3_ede-x86_64-y := des3_ede-asm_64.o des3_ede_glue.o + obj-$(CONFIG_CRYPTO_CAMELLIA_X86_64) += camellia-x86_64.o +camellia-x86_64-y := camellia-x86_64-asm_64.o camellia_glue.o +obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64) += camellia-aesni-avx-x86_64.o +camellia-aesni-avx-x86_64-y := camellia-aesni-avx-asm_64.o camellia_aesni_avx_glue.o +obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o +camellia-aesni-avx2-y := camellia-aesni-avx2-asm_64.o camellia_aesni_avx2_glue.o + obj-$(CONFIG_CRYPTO_BLOWFISH_X86_64) += blowfish-x86_64.o -obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o -obj-$(CONFIG_CRYPTO_TWOFISH_X86_64_3WAY) += twofish-x86_64-3way.o -obj-$(CONFIG_CRYPTO_CHACHA20_X86_64) += chacha-x86_64.o -obj-$(CONFIG_CRYPTO_SERPENT_SSE2_X86_64) += serpent-sse2-x86_64.o -obj-$(CONFIG_CRYPTO_AES_NI_INTEL) += aesni-intel.o -obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL) += ghash-clmulni-intel.o +blowfish-x86_64-y := blowfish-x86_64-asm_64.o blowfish_glue.o -obj-$(CONFIG_CRYPTO_CRC32C_INTEL) += crc32c-intel.o -obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o -obj-$(CONFIG_CRYPTO_CRC32_PCLMUL) += crc32-pclmul.o -obj-$(CONFIG_CRYPTO_SHA256_SSSE3) += sha256-ssse3.o -obj-$(CONFIG_CRYPTO_SHA512_SSSE3) += sha512-ssse3.o -obj-$(CONFIG_CRYPTO_CRCT10DIF_PCLMUL) += crct10dif-pclmul.o -obj-$(CONFIG_CRYPTO_POLY1305_X86_64) += poly1305-x86_64.o +obj-$(CONFIG_CRYPTO_CAST5_AVX_X86_64) += cast5-avx-x86_64.o +cast5-avx-x86_64-y := cast5-avx-x86_64-asm_64.o cast5_avx_glue.o + +obj-$(CONFIG_CRYPTO_CAST6_AVX_X86_64) += cast6-avx-x86_64.o +cast6-avx-x86_64-y := cast6-avx-x86_64-asm_64.o cast6_avx_glue.o obj-$(CONFIG_CRYPTO_AEGIS128_AESNI_SSE2) += aegis128-aesni.o +aegis128-aesni-y := aegis128-aesni-asm.o aegis128-aesni-glue.o -obj-$(CONFIG_CRYPTO_NHPOLY1305_SSE2) += nhpoly1305-sse2.o -obj-$(CONFIG_CRYPTO_NHPOLY1305_AVX2) += nhpoly1305-avx2.o +obj-$(CONFIG_CRYPTO_CHACHA20_X86_64) += chacha-x86_64.o +chacha-x86_64-y := chacha-avx2-x86_64.o chacha-ssse3-x86_64.o chacha_glue.o +chacha-x86_64-$(CONFIG_AS_AVX512) += chacha-avx512vl-x86_64.o -# These modules require the assembler to support ADX. -ifeq ($(adx_supported),yes) - obj-$(CONFIG_CRYPTO_CURVE25519_X86) += curve25519-x86_64.o -endif - -# These modules require assembler to support AVX. -ifeq ($(avx_supported),yes) - obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64) += \ - camellia-aesni-avx-x86_64.o - obj-$(CONFIG_CRYPTO_CAST5_AVX_X86_64) += cast5-avx-x86_64.o - obj-$(CONFIG_CRYPTO_CAST6_AVX_X86_64) += cast6-avx-x86_64.o - obj-$(CONFIG_CRYPTO_TWOFISH_AVX_X86_64) += twofish-avx-x86_64.o - obj-$(CONFIG_CRYPTO_SERPENT_AVX_X86_64) += serpent-avx-x86_64.o - obj-$(CONFIG_CRYPTO_BLAKE2S_X86) += blake2s-x86_64.o -endif - -# These modules require assembler to support AVX2. -ifeq ($(avx2_supported),yes) - obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o - obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o -endif +obj-$(CONFIG_CRYPTO_AES_NI_INTEL) += aesni-intel.o +aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o +aesni-intel-$(CONFIG_64BIT) += aesni-intel_avx-x86_64.o aes_ctrby8_avx-x86_64.o -twofish-i586-y := twofish-i586-asm_32.o twofish_glue.o -serpent-sse2-i586-y := serpent-sse2-i586-asm_32.o serpent_sse2_glue.o +obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o +sha1-ssse3-y := sha1_avx2_x86_64_asm.o sha1_ssse3_asm.o sha1_ssse3_glue.o +sha1-ssse3-$(CONFIG_AS_SHA1_NI) += sha1_ni_asm.o -des3_ede-x86_64-y := des3_ede-asm_64.o des3_ede_glue.o -camellia-x86_64-y := camellia-x86_64-asm_64.o camellia_glue.o -blowfish-x86_64-y := blowfish-x86_64-asm_64.o blowfish_glue.o -twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_glue.o -twofish-x86_64-3way-y := twofish-x86_64-asm_64-3way.o twofish_glue_3way.o -chacha-x86_64-y := chacha-ssse3-x86_64.o chacha_glue.o -serpent-sse2-x86_64-y := serpent-sse2-x86_64-asm_64.o serpent_sse2_glue.o +obj-$(CONFIG_CRYPTO_SHA256_SSSE3) += sha256-ssse3.o +sha256-ssse3-y := sha256-ssse3-asm.o sha256-avx-asm.o sha256-avx2-asm.o sha256_ssse3_glue.o +sha256-ssse3-$(CONFIG_AS_SHA256_NI) += sha256_ni_asm.o -aegis128-aesni-y := aegis128-aesni-asm.o aegis128-aesni-glue.o +obj-$(CONFIG_CRYPTO_SHA512_SSSE3) += sha512-ssse3.o +sha512-ssse3-y := sha512-ssse3-asm.o sha512-avx-asm.o sha512-avx2-asm.o sha512_ssse3_glue.o -nhpoly1305-sse2-y := nh-sse2-x86_64.o nhpoly1305-sse2-glue.o +obj-$(CONFIG_CRYPTO_BLAKE2S_X86) += blake2s-x86_64.o blake2s-x86_64-y := blake2s-core.o blake2s-glue.o -poly1305-x86_64-y := poly1305-x86_64-cryptogams.o poly1305_glue.o -ifneq ($(CONFIG_CRYPTO_POLY1305_X86_64),) -targets += poly1305-x86_64-cryptogams.S -endif - -ifeq ($(avx_supported),yes) - camellia-aesni-avx-x86_64-y := camellia-aesni-avx-asm_64.o \ - camellia_aesni_avx_glue.o - cast5-avx-x86_64-y := cast5-avx-x86_64-asm_64.o cast5_avx_glue.o - cast6-avx-x86_64-y := cast6-avx-x86_64-asm_64.o cast6_avx_glue.o - twofish-avx-x86_64-y := twofish-avx-x86_64-asm_64.o \ - twofish_avx_glue.o - serpent-avx-x86_64-y := serpent-avx-x86_64-asm_64.o \ - serpent_avx_glue.o -endif - -ifeq ($(avx2_supported),yes) - camellia-aesni-avx2-y := camellia-aesni-avx2-asm_64.o camellia_aesni_avx2_glue.o - chacha-x86_64-y += chacha-avx2-x86_64.o - serpent-avx2-y := serpent-avx2-asm_64.o serpent_avx2_glue.o - - nhpoly1305-avx2-y := nh-avx2-x86_64.o nhpoly1305-avx2-glue.o -endif - -ifeq ($(avx512_supported),yes) - chacha-x86_64-y += chacha-avx512vl-x86_64.o -endif -aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o -aesni-intel-$(CONFIG_64BIT) += aesni-intel_avx-x86_64.o aes_ctrby8_avx-x86_64.o +obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL) += ghash-clmulni-intel.o ghash-clmulni-intel-y := ghash-clmulni-intel_asm.o ghash-clmulni-intel_glue.o -sha1-ssse3-y := sha1_ssse3_asm.o sha1_ssse3_glue.o -ifeq ($(avx2_supported),yes) -sha1-ssse3-y += sha1_avx2_x86_64_asm.o -endif -ifeq ($(sha1_ni_supported),yes) -sha1-ssse3-y += sha1_ni_asm.o -endif + +obj-$(CONFIG_CRYPTO_CRC32C_INTEL) += crc32c-intel.o crc32c-intel-y := crc32c-intel_glue.o crc32c-intel-$(CONFIG_64BIT) += crc32c-pcl-intel-asm_64.o + +obj-$(CONFIG_CRYPTO_CRC32_PCLMUL) += crc32-pclmul.o crc32-pclmul-y := crc32-pclmul_asm.o crc32-pclmul_glue.o -sha256-ssse3-y := sha256-ssse3-asm.o sha256-avx-asm.o sha256-avx2-asm.o sha256_ssse3_glue.o -ifeq ($(sha256_ni_supported),yes) -sha256-ssse3-y += sha256_ni_asm.o -endif -sha512-ssse3-y := sha512-ssse3-asm.o sha512-avx-asm.o sha512-avx2-asm.o sha512_ssse3_glue.o + +obj-$(CONFIG_CRYPTO_CRCT10DIF_PCLMUL) += crct10dif-pclmul.o crct10dif-pclmul-y := crct10dif-pcl-asm_64.o crct10dif-pclmul_glue.o +obj-$(CONFIG_CRYPTO_POLY1305_X86_64) += poly1305-x86_64.o +poly1305-x86_64-y := poly1305-x86_64-cryptogams.o poly1305_glue.o +targets += poly1305-x86_64-cryptogams.S + +obj-$(CONFIG_CRYPTO_NHPOLY1305_SSE2) += nhpoly1305-sse2.o +nhpoly1305-sse2-y := nh-sse2-x86_64.o nhpoly1305-sse2-glue.o +obj-$(CONFIG_CRYPTO_NHPOLY1305_AVX2) += nhpoly1305-avx2.o +nhpoly1305-avx2-y := nh-avx2-x86_64.o nhpoly1305-avx2-glue.o + +obj-$(CONFIG_CRYPTO_CURVE25519_X86) += curve25519-x86_64.o + quiet_cmd_perlasm = PERLASM $@ cmd_perlasm = $(PERL) $< > $@ $(obj)/%.S: $(src)/%.pl FORCE diff --git a/arch/x86/crypto/aesni-intel_avx-x86_64.S b/arch/x86/crypto/aesni-intel_avx-x86_64.S index bfa1c0b3e5b4..0cea33295287 100644 --- a/arch/x86/crypto/aesni-intel_avx-x86_64.S +++ b/arch/x86/crypto/aesni-intel_avx-x86_64.S @@ -886,7 +886,6 @@ _less_than_8_bytes_left_\@: _partial_block_done_\@: .endm # PARTIAL_BLOCK -#ifdef CONFIG_AS_AVX ############################################################################### # GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0) # Input: A and B (128-bits each, bit-reflected) @@ -1869,9 +1868,6 @@ key_256_finalize: ret SYM_FUNC_END(aesni_gcm_finalize_avx_gen2) -#endif /* CONFIG_AS_AVX */ - -#ifdef CONFIG_AS_AVX2 ############################################################################### # GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0) # Input: A and B (128-bits each, bit-reflected) @@ -2839,5 +2835,3 @@ key_256_finalize4: FUNC_RESTORE ret SYM_FUNC_END(aesni_gcm_finalize_avx_gen4) - -#endif /* CONFIG_AS_AVX2 */ diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c index 75b6ea20491e..ad8a7188a2bf 100644 --- a/arch/x86/crypto/aesni-intel_glue.c +++ b/arch/x86/crypto/aesni-intel_glue.c @@ -185,7 +185,6 @@ static const struct aesni_gcm_tfm_s aesni_gcm_tfm_sse = { .finalize = &aesni_gcm_finalize, }; -#ifdef CONFIG_AS_AVX asmlinkage void aes_ctr_enc_128_avx_by8(const u8 *in, u8 *iv, void *keys, u8 *out, unsigned int num_bytes); asmlinkage void aes_ctr_enc_192_avx_by8(const u8 *in, u8 *iv, @@ -234,9 +233,6 @@ static const struct aesni_gcm_tfm_s aesni_gcm_tfm_avx_gen2 = { .finalize = &aesni_gcm_finalize_avx_gen2, }; -#endif - -#ifdef CONFIG_AS_AVX2 /* * asmlinkage void aesni_gcm_init_avx_gen4() * gcm_data *my_ctx_data, context data @@ -279,8 +275,6 @@ static const struct aesni_gcm_tfm_s aesni_gcm_tfm_avx_gen4 = { .finalize = &aesni_gcm_finalize_avx_gen4, }; -#endif - static inline struct aesni_rfc4106_gcm_ctx *aesni_rfc4106_gcm_ctx_get(struct crypto_aead *tfm) { @@ -476,7 +470,6 @@ static void ctr_crypt_final(struct crypto_aes_ctx *ctx, crypto_inc(ctrblk, AES_BLOCK_SIZE); } -#ifdef CONFIG_AS_AVX static void aesni_ctr_enc_avx_tfm(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in, unsigned int len, u8 *iv) { @@ -493,7 +486,6 @@ static void aesni_ctr_enc_avx_tfm(struct crypto_aes_ctx *ctx, u8 *out, else aes_ctr_enc_256_avx_by8(in, iv, (void *)ctx, out, len); } -#endif static int ctr_crypt(struct skcipher_request *req) { @@ -711,14 +703,10 @@ static int gcmaes_crypt_by_sg(bool enc, struct aead_request *req, if (!enc) left -= auth_tag_len; -#ifdef CONFIG_AS_AVX2 if (left < AVX_GEN4_OPTSIZE && gcm_tfm == &aesni_gcm_tfm_avx_gen4) gcm_tfm = &aesni_gcm_tfm_avx_gen2; -#endif -#ifdef CONFIG_AS_AVX if (left < AVX_GEN2_OPTSIZE && gcm_tfm == &aesni_gcm_tfm_avx_gen2) gcm_tfm = &aesni_gcm_tfm_sse; -#endif /* Linearize assoc, if not already linear */ if (req->src->length >= assoclen && req->src->length && @@ -1076,31 +1064,24 @@ static int __init aesni_init(void) if (!x86_match_cpu(aesni_cpu_id)) return -ENODEV; #ifdef CONFIG_X86_64 -#ifdef CONFIG_AS_AVX2 if (boot_cpu_has(X86_FEATURE_AVX2)) { pr_info("AVX2 version of gcm_enc/dec engaged.\n"); aesni_gcm_tfm = &aesni_gcm_tfm_avx_gen4; } else -#endif -#ifdef CONFIG_AS_AVX if (boot_cpu_has(X86_FEATURE_AVX)) { pr_info("AVX version of gcm_enc/dec engaged.\n"); aesni_gcm_tfm = &aesni_gcm_tfm_avx_gen2; - } else -#endif - { + } else { pr_info("SSE version of gcm_enc/dec engaged.\n"); aesni_gcm_tfm = &aesni_gcm_tfm_sse; } aesni_ctr_enc_tfm = aesni_ctr_enc; -#ifdef CONFIG_AS_AVX if (boot_cpu_has(X86_FEATURE_AVX)) { /* optimize performance of ctr mode encryption transform */ aesni_ctr_enc_tfm = aesni_ctr_enc_avx_tfm; pr_info("AES CTR mode by8 optimization enabled\n"); } #endif -#endif err = crypto_register_alg(&aesni_cipher_alg); if (err) diff --git a/arch/x86/crypto/blake2s-core.S b/arch/x86/crypto/blake2s-core.S index 24910b766bdd..2ca79974f819 100644 --- a/arch/x86/crypto/blake2s-core.S +++ b/arch/x86/crypto/blake2s-core.S @@ -46,7 +46,6 @@ SIGMA2: #endif /* CONFIG_AS_AVX512 */ .text -#ifdef CONFIG_AS_SSSE3 SYM_FUNC_START(blake2s_compress_ssse3) testq %rdx,%rdx je .Lendofloop @@ -174,7 +173,6 @@ SYM_FUNC_START(blake2s_compress_ssse3) .Lendofloop: ret SYM_FUNC_END(blake2s_compress_ssse3) -#endif /* CONFIG_AS_SSSE3 */ #ifdef CONFIG_AS_AVX512 SYM_FUNC_START(blake2s_compress_avx512) diff --git a/arch/x86/crypto/chacha_glue.c b/arch/x86/crypto/chacha_glue.c index 68a74953efaf..b412c21ee06e 100644 --- a/arch/x86/crypto/chacha_glue.c +++ b/arch/x86/crypto/chacha_glue.c @@ -79,8 +79,7 @@ static void chacha_dosimd(u32 *state, u8 *dst, const u8 *src, } } - if (IS_ENABLED(CONFIG_AS_AVX2) && - static_branch_likely(&chacha_use_avx2)) { + if (static_branch_likely(&chacha_use_avx2)) { while (bytes >= CHACHA_BLOCK_SIZE * 8) { chacha_8block_xor_avx2(state, dst, src, bytes, nrounds); bytes -= CHACHA_BLOCK_SIZE * 8; @@ -288,8 +287,7 @@ static int __init chacha_simd_mod_init(void) static_branch_enable(&chacha_use_simd); - if (IS_ENABLED(CONFIG_AS_AVX2) && - boot_cpu_has(X86_FEATURE_AVX) && + if (boot_cpu_has(X86_FEATURE_AVX) && boot_cpu_has(X86_FEATURE_AVX2) && cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) { static_branch_enable(&chacha_use_avx2); diff --git a/arch/x86/crypto/poly1305-x86_64-cryptogams.pl b/arch/x86/crypto/poly1305-x86_64-cryptogams.pl index 7a6b5380a46f..137edcf038cb 100644 --- a/arch/x86/crypto/poly1305-x86_64-cryptogams.pl +++ b/arch/x86/crypto/poly1305-x86_64-cryptogams.pl @@ -404,10 +404,6 @@ ___ &end_function("poly1305_emit_x86_64"); if ($avx) { -if($kernel) { - $code .= "#ifdef CONFIG_AS_AVX\n"; -} - ######################################################################## # Layout of opaque area is following. # @@ -1516,16 +1512,8 @@ $code.=<<___; ___ &end_function("poly1305_emit_avx"); -if ($kernel) { - $code .= "#endif\n"; -} - if ($avx>1) { -if ($kernel) { - $code .= "#ifdef CONFIG_AS_AVX2\n"; -} - my ($H0,$H1,$H2,$H3,$H4, $MASK, $T4,$T0,$T1,$T2,$T3, $D0,$D1,$D2,$D3,$D4) = map("%ymm$_",(0..15)); my $S4=$MASK; @@ -2816,10 +2804,6 @@ ___ poly1305_blocks_avxN(0); &end_function("poly1305_blocks_avx2"); -if($kernel) { - $code .= "#endif\n"; -} - ####################################################################### if ($avx>2) { # On entry we have input length divisible by 64. But since inner loop diff --git a/arch/x86/crypto/poly1305_glue.c b/arch/x86/crypto/poly1305_glue.c index 79bb58737d52..6dfec19f7d57 100644 --- a/arch/x86/crypto/poly1305_glue.c +++ b/arch/x86/crypto/poly1305_glue.c @@ -94,7 +94,7 @@ static void poly1305_simd_blocks(void *ctx, const u8 *inp, size_t len, BUILD_BUG_ON(PAGE_SIZE < POLY1305_BLOCK_SIZE || PAGE_SIZE % POLY1305_BLOCK_SIZE); - if (!IS_ENABLED(CONFIG_AS_AVX) || !static_branch_likely(&poly1305_use_avx) || + if (!static_branch_likely(&poly1305_use_avx) || (len < (POLY1305_BLOCK_SIZE * 18) && !state->is_base2_26) || !crypto_simd_usable()) { convert_to_base2_64(ctx); @@ -108,7 +108,7 @@ static void poly1305_simd_blocks(void *ctx, const u8 *inp, size_t len, kernel_fpu_begin(); if (IS_ENABLED(CONFIG_AS_AVX512) && static_branch_likely(&poly1305_use_avx512)) poly1305_blocks_avx512(ctx, inp, bytes, padbit); - else if (IS_ENABLED(CONFIG_AS_AVX2) && static_branch_likely(&poly1305_use_avx2)) + else if (static_branch_likely(&poly1305_use_avx2)) poly1305_blocks_avx2(ctx, inp, bytes, padbit); else poly1305_blocks_avx(ctx, inp, bytes, padbit); @@ -123,7 +123,7 @@ static void poly1305_simd_blocks(void *ctx, const u8 *inp, size_t len, static void poly1305_simd_emit(void *ctx, u8 mac[POLY1305_DIGEST_SIZE], const u32 nonce[4]) { - if (!IS_ENABLED(CONFIG_AS_AVX) || !static_branch_likely(&poly1305_use_avx)) + if (!static_branch_likely(&poly1305_use_avx)) poly1305_emit_x86_64(ctx, mac, nonce); else poly1305_emit_avx(ctx, mac, nonce); @@ -261,11 +261,10 @@ static struct shash_alg alg = { static int __init poly1305_simd_mod_init(void) { - if (IS_ENABLED(CONFIG_AS_AVX) && boot_cpu_has(X86_FEATURE_AVX) && + if (boot_cpu_has(X86_FEATURE_AVX) && cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) static_branch_enable(&poly1305_use_avx); - if (IS_ENABLED(CONFIG_AS_AVX2) && boot_cpu_has(X86_FEATURE_AVX) && - boot_cpu_has(X86_FEATURE_AVX2) && + if (boot_cpu_has(X86_FEATURE_AVX) && boot_cpu_has(X86_FEATURE_AVX2) && cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) static_branch_enable(&poly1305_use_avx2); if (IS_ENABLED(CONFIG_AS_AVX512) && boot_cpu_has(X86_FEATURE_AVX) && diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S index 12e2d19d7402..d25668d2a1e9 100644 --- a/arch/x86/crypto/sha1_ssse3_asm.S +++ b/arch/x86/crypto/sha1_ssse3_asm.S @@ -467,8 +467,6 @@ W_PRECALC_SSSE3 */ SHA1_VECTOR_ASM sha1_transform_ssse3 -#ifdef CONFIG_AS_AVX - .macro W_PRECALC_AVX .purgem W_PRECALC_00_15 @@ -553,5 +551,3 @@ W_PRECALC_AVX * const u8 *data, int blocks); */ SHA1_VECTOR_ASM sha1_transform_avx - -#endif diff --git a/arch/x86/crypto/sha1_ssse3_glue.c b/arch/x86/crypto/sha1_ssse3_glue.c index d70b40ad594c..a801ffc10cbb 100644 --- a/arch/x86/crypto/sha1_ssse3_glue.c +++ b/arch/x86/crypto/sha1_ssse3_glue.c @@ -114,7 +114,6 @@ static void unregister_sha1_ssse3(void) crypto_unregister_shash(&sha1_ssse3_alg); } -#ifdef CONFIG_AS_AVX asmlinkage void sha1_transform_avx(struct sha1_state *state, const u8 *data, int blocks); @@ -175,13 +174,6 @@ static void unregister_sha1_avx(void) crypto_unregister_shash(&sha1_avx_alg); } -#else /* CONFIG_AS_AVX */ -static inline int register_sha1_avx(void) { return 0; } -static inline void unregister_sha1_avx(void) { } -#endif /* CONFIG_AS_AVX */ - - -#if defined(CONFIG_AS_AVX2) && (CONFIG_AS_AVX) #define SHA1_AVX2_BLOCK_OPTSIZE 4 /* optimal 4*64 bytes of SHA1 blocks */ asmlinkage void sha1_transform_avx2(struct sha1_state *state, @@ -253,11 +245,6 @@ static void unregister_sha1_avx2(void) crypto_unregister_shash(&sha1_avx2_alg); } -#else -static inline int register_sha1_avx2(void) { return 0; } -static inline void unregister_sha1_avx2(void) { } -#endif - #ifdef CONFIG_AS_SHA1_NI asmlinkage void sha1_ni_transform(struct sha1_state *digest, const u8 *data, int rounds); diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S index fcbc30f58c38..4739cd31b9db 100644 --- a/arch/x86/crypto/sha256-avx-asm.S +++ b/arch/x86/crypto/sha256-avx-asm.S @@ -47,7 +47,6 @@ # This code schedules 1 block at a time, with 4 lanes per block ######################################################################## -#ifdef CONFIG_AS_AVX #include <linux/linkage.h> ## assume buffers not aligned @@ -498,5 +497,3 @@ _SHUF_00BA: # shuffle xDxC -> DC00 _SHUF_DC00: .octa 0x0b0a090803020100FFFFFFFFFFFFFFFF - -#endif diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S index 499d9ec129de..11ff60c29c8b 100644 --- a/arch/x86/crypto/sha256-avx2-asm.S +++ b/arch/x86/crypto/sha256-avx2-asm.S @@ -48,7 +48,6 @@ # This code schedules 2 blocks at a time, with 4 lanes per block ######################################################################## -#ifdef CONFIG_AS_AVX2 #include <linux/linkage.h> ## assume buffers not aligned @@ -767,5 +766,3 @@ _SHUF_00BA: .align 32 _SHUF_DC00: .octa 0x0b0a090803020100FFFFFFFFFFFFFFFF,0x0b0a090803020100FFFFFFFFFFFFFFFF - -#endif diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c index 03ad657c04bd..6394b5fe8db6 100644 --- a/arch/x86/crypto/sha256_ssse3_glue.c +++ b/arch/x86/crypto/sha256_ssse3_glue.c @@ -144,7 +144,6 @@ static void unregister_sha256_ssse3(void) ARRAY_SIZE(sha256_ssse3_algs)); } -#ifdef CONFIG_AS_AVX asmlinkage void sha256_transform_avx(struct sha256_state *state, const u8 *data, int blocks); @@ -221,12 +220,6 @@ static void unregister_sha256_avx(void) ARRAY_SIZE(sha256_avx_algs)); } -#else -static inline int register_sha256_avx(void) { return 0; } -static inline void unregister_sha256_avx(void) { } -#endif - -#if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX) asmlinkage void sha256_transform_rorx(struct sha256_state *state, const u8 *data, int blocks); @@ -301,11 +294,6 @@ static void unregister_sha256_avx2(void) ARRAY_SIZE(sha256_avx2_algs)); } -#else -static inline int register_sha256_avx2(void) { return 0; } -static inline void unregister_sha256_avx2(void) { } -#endif - #ifdef CONFIG_AS_SHA256_NI asmlinkage void sha256_ni_transform(struct sha256_state *digest, const u8 *data, int rounds); diff --git a/arch/x86/crypto/sha512-avx-asm.S b/arch/x86/crypto/sha512-avx-asm.S index 90ea945ba5e6..63470fd6ae32 100644 --- a/arch/x86/crypto/sha512-avx-asm.S +++ b/arch/x86/crypto/sha512-avx-asm.S @@ -47,7 +47,6 @@ # ######################################################################## -#ifdef CONFIG_AS_AVX #include <linux/linkage.h> .text @@ -424,4 +423,3 @@ K512: .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817 -#endif diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S index 3dd886b14e7d..3a44bdcfd583 100644 --- a/arch/x86/crypto/sha512-avx2-asm.S +++ b/arch/x86/crypto/sha512-avx2-asm.S @@ -49,7 +49,6 @@ # This code schedules 1 blocks at a time, with 4 lanes per block ######################################################################## -#ifdef CONFIG_AS_AVX2 #include <linux/linkage.h> .text @@ -749,5 +748,3 @@ PSHUFFLE_BYTE_FLIP_MASK: MASK_YMM_LO: .octa 0x00000000000000000000000000000000 .octa 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF - -#endif diff --git a/arch/x86/crypto/sha512_ssse3_glue.c b/arch/x86/crypto/sha512_ssse3_glue.c index 1c444f41037c..82cc1b3ced1d 100644 --- a/arch/x86/crypto/sha512_ssse3_glue.c +++ b/arch/x86/crypto/sha512_ssse3_glue.c @@ -142,7 +142,6 @@ static void unregister_sha512_ssse3(void) ARRAY_SIZE(sha512_ssse3_algs)); } -#ifdef CONFIG_AS_AVX asmlinkage void sha512_transform_avx(struct sha512_state *state, const u8 *data, int blocks); static bool avx_usable(void) @@ -218,12 +217,7 @@ static void unregister_sha512_avx(void) crypto_unregister_shashes(sha512_avx_algs, ARRAY_SIZE(sha512_avx_algs)); } -#else -static inline int register_sha512_avx(void) { return 0; } -static inline void unregister_sha512_avx(void) { } -#endif -#if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX) asmlinkage void sha512_transform_rorx(struct sha512_state *state, const u8 *data, int blocks); @@ -298,10 +292,6 @@ static void unregister_sha512_avx2(void) crypto_unregister_shashes(sha512_avx2_algs, ARRAY_SIZE(sha512_avx2_algs)); } -#else -static inline int register_sha512_avx2(void) { return 0; } -static inline void unregister_sha512_avx2(void) { } -#endif static int __init sha512_ssse3_mod_init(void) { diff --git a/arch/x86/include/asm/dwarf2.h b/arch/x86/include/asm/dwarf2.h index f71a0cce9373..430fca13bb56 100644 --- a/arch/x86/include/asm/dwarf2.h +++ b/arch/x86/include/asm/dwarf2.h @@ -6,15 +6,6 @@ #warning "asm/dwarf2.h should be only included in pure assembly files" #endif -/* - * Macros for dwarf2 CFI unwind table entries. - * See "as.info" for details on these pseudo ops. Unfortunately - * they are only supported in very new binutils, so define them - * away for older version. - */ - -#ifdef CONFIG_AS_CFI - #define CFI_STARTPROC .cfi_startproc #define CFI_ENDPROC .cfi_endproc #define CFI_DEF_CFA .cfi_def_cfa @@ -30,13 +21,6 @@ #define CFI_UNDEFINED .cfi_undefined #define CFI_ESCAPE .cfi_escape -#ifdef CONFIG_AS_CFI_SIGNAL_FRAME -#define CFI_SIGNAL_FRAME .cfi_signal_frame -#else -#define CFI_SIGNAL_FRAME -#endif - -#if defined(CONFIG_AS_CFI_SECTIONS) && defined(__ASSEMBLY__) #ifndef BUILD_VDSO /* * Emit CFI data in .debug_frame sections, not .eh_frame sections. @@ -53,33 +37,5 @@ */ .cfi_sections .eh_frame, .debug_frame #endif -#endif - -#else - -/* - * Due to the structure of pre-exisiting code, don't use assembler line - * comment character # to ignore the arguments. Instead, use a dummy macro. - */ -.macro cfi_ignore a=0, b=0, c=0, d=0 -.endm - -#define CFI_STARTPROC cfi_ignore -#define CFI_ENDPROC cfi_ignore -#define CFI_DEF_CFA cfi_ignore -#define CFI_DEF_CFA_REGISTER cfi_ignore -#define CFI_DEF_CFA_OFFSET cfi_ignore -#define CFI_ADJUST_CFA_OFFSET cfi_ignore -#define CFI_OFFSET cfi_ignore -#define CFI_REL_OFFSET cfi_ignore -#define CFI_REGISTER cfi_ignore -#define CFI_RESTORE cfi_ignore -#define CFI_REMEMBER_STATE cfi_ignore -#define CFI_RESTORE_STATE cfi_ignore -#define CFI_UNDEFINED cfi_ignore -#define CFI_ESCAPE cfi_ignore -#define CFI_SIGNAL_FRAME cfi_ignore - -#endif #endif /* _ASM_X86_DWARF2_H */ diff --git a/arch/x86/include/asm/xor_avx.h b/arch/x86/include/asm/xor_avx.h index d61ddf3d052b..0c4e5b5e3852 100644 --- a/arch/x86/include/asm/xor_avx.h +++ b/arch/x86/include/asm/xor_avx.h @@ -11,8 +11,6 @@ * Based on Ingo Molnar and Zach Brown's respective MMX and SSE routines */ -#ifdef CONFIG_AS_AVX - #include <linux/compiler.h> #include <asm/fpu/api.h> @@ -170,11 +168,4 @@ do { \ #define AVX_SELECT(FASTEST) \ (boot_cpu_has(X86_FEATURE_AVX) && boot_cpu_has(X86_FEATURE_OSXSAVE) ? &xor_block_avx : FASTEST) -#else - -#define AVX_XOR_SPEED {} - -#define AVX_SELECT(FASTEST) (FASTEST) - -#endif #endif diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 9f887a86e555..6cd1f6253814 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -28,9 +28,6 @@ subdir-ccflags-$(CONFIG_DRM_I915_WERROR) += -Werror CFLAGS_i915_pci.o = $(call cc-disable-warning, override-init) CFLAGS_display/intel_fbdev.o = $(call cc-disable-warning, override-init) -subdir-ccflags-y += \ - $(call as-instr,movntdqa (%eax)$(comma)%xmm0,-DCONFIG_AS_MOVNTDQA) - subdir-ccflags-y += -I$(srctree)/$(src) # Please keep these build lists sorted! diff --git a/drivers/gpu/drm/i915/i915_memcpy.c b/drivers/gpu/drm/i915/i915_memcpy.c index fdd550405fd3..7b3b83bd5ab8 100644 --- a/drivers/gpu/drm/i915/i915_memcpy.c +++ b/drivers/gpu/drm/i915/i915_memcpy.c @@ -35,7 +35,6 @@ static DEFINE_STATIC_KEY_FALSE(has_movntdqa); -#ifdef CONFIG_AS_MOVNTDQA static void __memcpy_ntdqa(void *dst, const void *src, unsigned long len) { kernel_fpu_begin(); @@ -93,10 +92,6 @@ static void __memcpy_ntdqu(void *dst, const void *src, unsigned long len) kernel_fpu_end(); } -#else -static void __memcpy_ntdqa(void *dst, const void *src, unsigned long len) {} -static void __memcpy_ntdqu(void *dst, const void *src, unsigned long len) {} -#endif /** * i915_memcpy_from_wc: perform an accelerated *aligned* read from WC diff --git a/include/crypto/curve25519.h b/include/crypto/curve25519.h index 9ecb3c1f0f15..4e6dc840b159 100644 --- a/include/crypto/curve25519.h +++ b/include/crypto/curve25519.h @@ -33,8 +33,7 @@ bool __must_check curve25519(u8 mypublic[CURVE25519_KEY_SIZE], const u8 secret[CURVE25519_KEY_SIZE], const u8 basepoint[CURVE25519_KEY_SIZE]) { - if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CURVE25519) && - (!IS_ENABLED(CONFIG_CRYPTO_CURVE25519_X86) || IS_ENABLED(CONFIG_AS_ADX))) + if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CURVE25519)) curve25519_arch(mypublic, secret, basepoint); else curve25519_generic(mypublic, secret, basepoint); @@ -50,8 +49,7 @@ __must_check curve25519_generate_public(u8 pub[CURVE25519_KEY_SIZE], CURVE25519_KEY_SIZE))) return false; - if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CURVE25519) && - (!IS_ENABLED(CONFIG_CRYPTO_CURVE25519_X86) || IS_ENABLED(CONFIG_AS_ADX))) + if (IS_ENABLED(CONFIG_CRYPTO_ARCH_HAVE_LIB_CURVE25519)) curve25519_base_arch(pub, secret); else curve25519_generic(pub, secret, curve25519_base_point); diff --git a/init/Makefile b/init/Makefile index 6246a06364d0..d45e967483b2 100644 --- a/init/Makefile +++ b/init/Makefile @@ -35,4 +35,4 @@ include/generated/compile.h: FORCE @$($(quiet)chk_compile.h) $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \ "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" \ - "$(CONFIG_PREEMPT_RT)" "$(CC) $(KBUILD_CFLAGS)" + "$(CONFIG_PREEMPT_RT)" "$(CC)" "$(LD)" diff --git a/lib/raid6/algos.c b/lib/raid6/algos.c index bf1b4765c8f6..6d5e5000fdd7 100644 --- a/lib/raid6/algos.c +++ b/lib/raid6/algos.c @@ -34,10 +34,8 @@ const struct raid6_calls * const raid6_algos[] = { &raid6_avx512x2, &raid6_avx512x1, #endif -#ifdef CONFIG_AS_AVX2 &raid6_avx2x2, &raid6_avx2x1, -#endif &raid6_sse2x2, &raid6_sse2x1, &raid6_sse1x2, @@ -51,11 +49,9 @@ const struct raid6_calls * const raid6_algos[] = { &raid6_avx512x2, &raid6_avx512x1, #endif -#ifdef CONFIG_AS_AVX2 &raid6_avx2x4, &raid6_avx2x2, &raid6_avx2x1, -#endif &raid6_sse2x4, &raid6_sse2x2, &raid6_sse2x1, @@ -97,13 +93,11 @@ void (*raid6_datap_recov)(int, size_t, int, void **); EXPORT_SYMBOL_GPL(raid6_datap_recov); const struct raid6_recov_calls *const raid6_recov_algos[] = { +#ifdef CONFIG_X86 #ifdef CONFIG_AS_AVX512 &raid6_recov_avx512, #endif -#ifdef CONFIG_AS_AVX2 &raid6_recov_avx2, -#endif -#ifdef CONFIG_AS_SSSE3 &raid6_recov_ssse3, #endif #ifdef CONFIG_S390 diff --git a/lib/raid6/avx2.c b/lib/raid6/avx2.c index 87184b6da28a..f299476e1d76 100644 --- a/lib/raid6/avx2.c +++ b/lib/raid6/avx2.c @@ -13,8 +13,6 @@ * */ -#ifdef CONFIG_AS_AVX2 - #include <linux/raid/pq.h> #include "x86.h" @@ -470,5 +468,3 @@ const struct raid6_calls raid6_avx2x4 = { 1 /* Has cache hints */ }; #endif - -#endif /* CONFIG_AS_AVX2 */ diff --git a/lib/raid6/recov_avx2.c b/lib/raid6/recov_avx2.c index 7a3b5e7f66ee..4e8095403ee2 100644 --- a/lib/raid6/recov_avx2.c +++ b/lib/raid6/recov_avx2.c @@ -4,8 +4,6 @@ * Author: Jim Kukunas <james.t.kukunas@linux.intel.com> */ -#ifdef CONFIG_AS_AVX2 - #include <linux/raid/pq.h> #include "x86.h" @@ -313,7 +311,3 @@ const struct raid6_recov_calls raid6_recov_avx2 = { #endif .priority = 2, }; - -#else -#warning "your version of binutils lacks AVX2 support" -#endif diff --git a/lib/raid6/recov_ssse3.c b/lib/raid6/recov_ssse3.c index 1de97d2405d0..4bfa3c6b60de 100644 --- a/lib/raid6/recov_ssse3.c +++ b/lib/raid6/recov_ssse3.c @@ -3,8 +3,6 @@ * Copyright (C) 2012 Intel Corporation */ -#ifdef CONFIG_AS_SSSE3 - #include <linux/raid/pq.h> #include "x86.h" @@ -328,7 +326,3 @@ const struct raid6_recov_calls raid6_recov_ssse3 = { #endif .priority = 1, }; - -#else -#warning "your version of binutils lacks SSSE3 support" -#endif diff --git a/lib/raid6/test/Makefile b/lib/raid6/test/Makefile index 3ab8720aa2f8..a4c7cd74cff5 100644 --- a/lib/raid6/test/Makefile +++ b/lib/raid6/test/Makefile @@ -34,14 +34,9 @@ endif ifeq ($(IS_X86),yes) OBJS += mmx.o sse1.o sse2.o avx2.o recov_ssse3.o recov_avx2.o avx512.o recov_avx512.o - CFLAGS += $(shell echo "pshufb %xmm0, %xmm0" | \ - gcc -c -x assembler - >&/dev/null && \ - rm ./-.o && echo -DCONFIG_AS_SSSE3=1) - CFLAGS += $(shell echo "vpbroadcastb %xmm0, %ymm1" | \ - gcc -c -x assembler - >&/dev/null && \ - rm ./-.o && echo -DCONFIG_AS_AVX2=1) + CFLAGS += -DCONFIG_X86 CFLAGS += $(shell echo "vpmovm2b %k1, %zmm5" | \ - gcc -c -x assembler - >&/dev/null && \ + gcc -c -x assembler - >/dev/null 2>&1 && \ rm ./-.o && echo -DCONFIG_AS_AVX512=1) else ifeq ($(HAS_NEON),yes) OBJS += neon.o neon1.o neon2.o neon4.o neon8.o recov_neon.o recov_neon_inner.o diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile index 292e71dc7ba4..0e0ded87e27b 100644 --- a/net/netfilter/Makefile +++ b/net/netfilter/Makefile @@ -83,7 +83,7 @@ nf_tables-objs := nf_tables_core.o nf_tables_api.o nft_chain_filter.o \ nft_set_pipapo.o ifdef CONFIG_X86_64 -ifneq (,$(findstring -DCONFIG_AS_AVX2=1,$(KBUILD_CFLAGS))) +ifndef CONFIG_UML nf_tables-objs += nft_set_pipapo_avx2.o endif endif diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index d0ab5ffa1e2c..4471393da6d8 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -3291,7 +3291,7 @@ static const struct nft_set_type *nft_set_types[] = { &nft_set_rhash_type, &nft_set_bitmap_type, &nft_set_rbtree_type, -#if defined(CONFIG_X86_64) && defined(CONFIG_AS_AVX2) +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML) &nft_set_pipapo_avx2_type, #endif &nft_set_pipapo_type, diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c index 87aabf651cfe..8b5acc6910fd 100644 --- a/net/netfilter/nft_set_pipapo.c +++ b/net/netfilter/nft_set_pipapo.c @@ -2201,7 +2201,7 @@ const struct nft_set_type nft_set_pipapo_type = { }, }; -#if defined(CONFIG_X86_64) && defined(CONFIG_AS_AVX2) +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML) const struct nft_set_type nft_set_pipapo_avx2_type = { .features = NFT_SET_INTERVAL | NFT_SET_MAP | NFT_SET_OBJECT | NFT_SET_TIMEOUT, diff --git a/net/netfilter/nft_set_pipapo_avx2.h b/net/netfilter/nft_set_pipapo_avx2.h index 396caf7bfca8..394bcb704db7 100644 --- a/net/netfilter/nft_set_pipapo_avx2.h +++ b/net/netfilter/nft_set_pipapo_avx2.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _NFT_SET_PIPAPO_AVX2_H -#ifdef CONFIG_AS_AVX2 +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML) #include <asm/fpu/xstate.h> #define NFT_PIPAPO_ALIGN (XSAVE_YMM_SIZE / BITS_PER_BYTE) @@ -9,6 +9,6 @@ bool nft_pipapo_avx2_lookup(const struct net *net, const struct nft_set *set, const u32 *key, const struct nft_set_ext **ext); bool nft_pipapo_avx2_estimate(const struct nft_set_desc *desc, u32 features, struct nft_set_estimate *est); -#endif /* CONFIG_AS_AVX2 */ +#endif /* defined(CONFIG_X86_64) && !defined(CONFIG_UML) */ #endif /* _NFT_SET_PIPAPO_AVX2_H */ diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include index 8074f14d9d0d..c264da2b9b30 100644 --- a/scripts/Kconfig.include +++ b/scripts/Kconfig.include @@ -48,9 +48,6 @@ $(error-if,$(failure,command -v $(LD)),linker '$(LD)' not found) # Fail if the linker is gold as it's not capable of linking the kernel proper $(error-if,$(success, $(LD) -v | grep -q gold), gold linker '$(LD)' not supported) -# gcc version including patch level -gcc-version := $(shell,$(srctree)/scripts/gcc-version.sh $(CC)) - # machine bit flags # $(m32-flag): -m32 if the compiler supports it, or an empty string otherwise. # $(m64-flag): -m64 if the compiler supports it, or an empty string otherwise. diff --git a/scripts/Makefile b/scripts/Makefile index 5e75802b1a44..95ecf970c74c 100644 --- a/scripts/Makefile +++ b/scripts/Makefile @@ -2,10 +2,6 @@ ### # scripts contains sources for various helper programs used throughout # the kernel for the build process. -# --------------------------------------------------------------------------- -# kallsyms: Find all symbols in vmlinux - -HOST_EXTRACFLAGS += -I$(srctree)/tools/include always-$(CONFIG_BUILD_BIN2C) += bin2c always-$(CONFIG_KALLSYMS) += kallsyms diff --git a/scripts/Makefile.build b/scripts/Makefile.build index a1730d42e5f3..9fcbfac15d1d 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -46,7 +46,7 @@ include $(kbuild-file) include scripts/Makefile.lib # Do not include host rules unless needed -ifneq ($(hostprogs)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),) +ifneq ($(hostprogs)$(hostcxxlibs-y)$(hostcxxlibs-m),) include scripts/Makefile.host endif @@ -65,7 +65,6 @@ endif ifneq ($(strip $(lib-y) $(lib-m) $(lib-)),) lib-target := $(obj)/lib.a -real-obj-y += $(obj)/lib-ksyms.o endif ifdef need-builtin @@ -410,22 +409,6 @@ $(lib-target): $(lib-y) FORCE targets += $(lib-target) -dummy-object = $(obj)/.lib_exports.o -ksyms-lds = $(dot-target).lds - -quiet_cmd_export_list = EXPORTS $@ -cmd_export_list = $(OBJDUMP) -h $< | \ - sed -ne '/___ksymtab/s/.*+\([^ ]*\).*/EXTERN(\1)/p' >$(ksyms-lds);\ - rm -f $(dummy-object);\ - echo | $(CC) $(a_flags) -c -o $(dummy-object) -x assembler -;\ - $(LD) $(ld_flags) -r -o $@ -T $(ksyms-lds) $(dummy-object);\ - rm $(dummy-object) $(ksyms-lds) - -$(obj)/lib-ksyms.o: $(lib-target) FORCE - $(call if_changed,export_list) - -targets += $(obj)/lib-ksyms.o - endif # NOTE: diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean index 1e4206566a82..075f0cc2d8d7 100644 --- a/scripts/Makefile.clean +++ b/scripts/Makefile.clean @@ -30,7 +30,6 @@ subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) __clean-files := $(extra-y) $(extra-m) $(extra-) \ $(always) $(always-y) $(always-m) $(always-) $(targets) $(clean-files) \ $(hostprogs) $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \ - $(hostlibs-y) $(hostlibs-m) $(hostlibs-) \ $(hostcxxlibs-y) $(hostcxxlibs-m) __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn index ca08f2fe7c34..4aea7cf71d11 100644 --- a/scripts/Makefile.extrawarn +++ b/scripts/Makefile.extrawarn @@ -49,6 +49,7 @@ KBUILD_CFLAGS += -Wno-format KBUILD_CFLAGS += -Wno-sign-compare KBUILD_CFLAGS += -Wno-format-zero-length KBUILD_CFLAGS += $(call cc-disable-warning, pointer-to-enum-cast) +KBUILD_CFLAGS += -Wno-tautological-constant-out-of-range-compare endif endif diff --git a/scripts/Makefile.host b/scripts/Makefile.host index 3b7121d43324..2045855d0b75 100644 --- a/scripts/Makefile.host +++ b/scripts/Makefile.host @@ -39,7 +39,6 @@ $(obj)/%.tab.c $(obj)/%.tab.h: $(src)/%.y FORCE # They are linked as C++ code to the executable qconf __hostprogs := $(sort $(hostprogs)) -host-cshlib := $(sort $(hostlibs-y) $(hostlibs-m)) host-cxxshlib := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m)) # C code @@ -63,7 +62,6 @@ host-cxxmulti := $(foreach m,$(__hostprogs),$(if $($(m)-cxxobjs),$(m))) host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs))) # Object (.o) files used by the shared libaries -host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs)))) host-cxxshobjs := $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs)))) host-csingle := $(addprefix $(obj)/,$(host-csingle)) @@ -71,9 +69,7 @@ host-cmulti := $(addprefix $(obj)/,$(host-cmulti)) host-cobjs := $(addprefix $(obj)/,$(host-cobjs)) host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti)) host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs)) -host-cshlib := $(addprefix $(obj)/,$(host-cshlib)) host-cxxshlib := $(addprefix $(obj)/,$(host-cxxshlib)) -host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs)) host-cxxshobjs := $(addprefix $(obj)/,$(host-cxxshobjs)) ##### @@ -141,13 +137,6 @@ $(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE $(call if_changed_dep,host-cxxobjs) # Compile .c file, create position independent .o file -# host-cshobjs -> .o -quiet_cmd_host-cshobjs = HOSTCC -fPIC $@ - cmd_host-cshobjs = $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $< -$(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE - $(call if_changed_dep,host-cshobjs) - -# Compile .c file, create position independent .o file # Note that plugin capable gcc versions can be either C or C++ based # therefore plugin source files have to be compilable in both C and C++ mode. # This is why a C++ compiler is invoked on a .c file. @@ -158,16 +147,6 @@ $(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE $(call if_changed_dep,host-cxxshobjs) # Link a shared library, based on position independent .o files -# *.o -> .so shared library (host-cshlib) -quiet_cmd_host-cshlib = HOSTLLD -shared $@ - cmd_host-cshlib = $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \ - $(addprefix $(obj)/, $($(target-stem)-objs)) \ - $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem).so) -$(host-cshlib): FORCE - $(call if_changed,host-cshlib) -$(call multi_depend, $(host-cshlib), .so, -objs) - -# Link a shared library, based on position independent .o files # *.o -> .so shared library (host-cxxshlib) quiet_cmd_host-cxxshlib = HOSTLLD -shared $@ cmd_host-cxxshlib = $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -shared -o $@ \ @@ -178,4 +157,4 @@ $(host-cxxshlib): FORCE $(call multi_depend, $(host-cxxshlib), .so, -objs) targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\ - $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs) + $(host-cxxmulti) $(host-cxxobjs) $(host-cxxshlib) $(host-cxxshobjs) diff --git a/scripts/dummy-tools/gcc b/scripts/dummy-tools/gcc new file mode 100755 index 000000000000..33487e99d83e --- /dev/null +++ b/scripts/dummy-tools/gcc @@ -0,0 +1,91 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0-only +# +# Staring v4.18, Kconfig evaluates compiler capabilities, and hides CONFIG +# options your compiler does not support. This works well if you configure and +# build the kernel on the same host machine. +# +# It is inconvenient if you prepare the .config that is carried to a different +# build environment (typically this happens when you package the kernel for +# distros) because using a different compiler potentially produces different +# CONFIG options than the real build environment. So, you probably want to make +# as many options visible as possible. In other words, you need to create a +# super-set of CONFIG options that cover any build environment. If some of the +# CONFIG options turned out to be unsupported on the build machine, they are +# automatically disabled by the nature of Kconfig. +# +# However, it is not feasible to get a full-featured compiler for every arch. +# Hence these dummy toolchains to make all compiler tests pass. +# +# Usage: +# +# From the top directory of the source tree, run +# +# $ make CROSS_COMPILE=scripts/dummy-tools/ oldconfig +# +# Most of compiler features are tested by cc-option, which simply checks the +# exit code of $(CC). This script does nothing and just exits with 0 in most +# cases. So, $(cc-option, ...) is evaluated as 'y'. +# +# This scripts caters to more checks; handle --version and pre-process __GNUC__ +# etc. to pretend to be GCC, and also do right things to satisfy some scripts. + +# Check if the first parameter appears in the rest. Succeeds if found. +# This helper is useful if a particular option was passed to this script. +# Typically used like this: +# arg_contain <word-you-are-searching-for> "$@" +arg_contain () +{ + search="$1" + shift + + while [ $# -gt 0 ] + do + if [ "$search" = "$1" ]; then + return 0 + fi + shift + done + + return 1 +} + +# To set CONFIG_CC_IS_GCC=y +if arg_contain --version "$@"; then + echo "gcc (scripts/dummy-tools/gcc)" + exit 0 +fi + +if arg_contain -E "$@"; then + # For scripts/gcc-version.sh; This emulates GCC 20.0.0 + if arg_contain - "$@"; then + sed 's/^__GNUC__$/20/; s/^__GNUC_MINOR__$/0/; s/^__GNUC_PATCHLEVEL__$/0/' + exit 0 + else + echo "no input files" >&2 + exit 1 + fi +fi + +if arg_contain -S "$@"; then + # For scripts/gcc-x86-*-has-stack-protector.sh + if arg_contain -fstack-protector "$@"; then + echo "%gs" + exit 0 + fi +fi + +# For scripts/gcc-plugin.sh +if arg_contain -print-file-name=plugin "$@"; then + plugin_dir=$(mktemp -d) + + sed -n 's/.*#include "\(.*\)"/\1/p' $(dirname $0)/../gcc-plugins/gcc-common.h | + while read header + do + mkdir -p $plugin_dir/include/$(dirname $header) + touch $plugin_dir/include/$header + done + + echo $plugin_dir + exit 0 +fi diff --git a/scripts/dummy-tools/ld b/scripts/dummy-tools/ld new file mode 100755 index 000000000000..f68233050405 --- /dev/null +++ b/scripts/dummy-tools/ld @@ -0,0 +1,30 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0-only + +# Dummy script that always succeeds. + +# Check if the first parameter appears in the rest. Succeeds if found. +# This helper is useful if a particular option was passed to this script. +# Typically used like this: +# arg_contain <word-you-are-searching-for> "$@" +arg_contain () +{ + search="$1" + shift + + while [ $# -gt 0 ] + do + if [ "$search" = "$1" ]; then + return 0 + fi + shift + done + + return 1 +} + +if arg_contain --version "$@" || arg_contain -v "$@"; then + progname=$(basename $0) + echo "GNU $progname (scripts/dummy-tools/$progname) 2.50" + exit 0 +fi diff --git a/scripts/dummy-tools/nm b/scripts/dummy-tools/nm new file mode 120000 index 000000000000..c0648b38dd42 --- /dev/null +++ b/scripts/dummy-tools/nm @@ -0,0 +1 @@ +ld
\ No newline at end of file diff --git a/scripts/dummy-tools/objcopy b/scripts/dummy-tools/objcopy new file mode 120000 index 000000000000..c0648b38dd42 --- /dev/null +++ b/scripts/dummy-tools/objcopy @@ -0,0 +1 @@ +ld
\ No newline at end of file diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh index d3caefe53eab..b79fd0bea838 100755 --- a/scripts/gcc-plugin.sh +++ b/scripts/gcc-plugin.sh @@ -1,49 +1,14 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 -srctree=$(dirname "$0") - -SHOW_ERROR= -if [ "$1" = "--show-error" ] ; then - SHOW_ERROR=1 - shift || true -fi - -gccplugins_dir=$($3 -print-file-name=plugin) -plugincc=$($1 -E -x c++ - -o /dev/null -I"${srctree}"/gcc-plugins -I"${gccplugins_dir}"/include 2>&1 <<EOF -#include "gcc-common.h" -#if BUILDING_GCC_VERSION >= 4008 || defined(ENABLE_BUILD_WITH_CXX) -#warning $2 CXX -#else -#warning $1 CC -#endif -EOF -) -if [ $? -ne 0 ] -then - if [ -n "$SHOW_ERROR" ] ; then - echo "${plugincc}" >&2 - fi - exit 1 -fi +set -e -case "$plugincc" in - *"$1 CC"*) - echo "$1" - exit 0 - ;; - - *"$2 CXX"*) - # the c++ compiler needs another test, see below - ;; +srctree=$(dirname "$0") - *) - exit 1 - ;; -esac +gccplugins_dir=$($* -print-file-name=plugin) # we need a c++ compiler that supports the designated initializer GNU extension -plugincc=$($2 -c -x c++ -std=gnu++98 - -fsyntax-only -I"${srctree}"/gcc-plugins -I"${gccplugins_dir}"/include 2>&1 <<EOF +$HOSTCC -c -x c++ -std=gnu++98 - -fsyntax-only -I $srctree/gcc-plugins -I $gccplugins_dir/include 2>/dev/null <<EOF #include "gcc-common.h" class test { public: @@ -52,15 +17,3 @@ public: .test = 1 }; EOF -) - -if [ $? -eq 0 ] -then - echo "$2" - exit 0 -fi - -if [ -n "$SHOW_ERROR" ] ; then - echo "${plugincc}" >&2 -fi -exit 1 diff --git a/scripts/gcc-plugins/Kconfig b/scripts/gcc-plugins/Kconfig index f8ca236d6165..013ba3a57669 100644 --- a/scripts/gcc-plugins/Kconfig +++ b/scripts/gcc-plugins/Kconfig @@ -1,13 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only -preferred-plugin-hostcc := $(if-success,[ $(gcc-version) -ge 40800 ],$(HOSTCXX),$(HOSTCC)) - -config PLUGIN_HOSTCC - string - default "$(shell,$(srctree)/scripts/gcc-plugin.sh "$(preferred-plugin-hostcc)" "$(HOSTCXX)" "$(CC)")" if CC_IS_GCC - help - Host compiler used to build GCC plugins. This can be $(HOSTCXX), - $(HOSTCC), or a null string if GCC plugin is unsupported. - config HAVE_GCC_PLUGINS bool help @@ -17,7 +8,8 @@ config HAVE_GCC_PLUGINS menuconfig GCC_PLUGINS bool "GCC plugins" depends on HAVE_GCC_PLUGINS - depends on PLUGIN_HOSTCC != "" + depends on CC_IS_GCC && GCC_VERSION >= 40800 + depends on $(success,$(srctree)/scripts/gcc-plugin.sh $(CC)) default y help GCC plugins are loadable modules that provide extra features to the diff --git a/scripts/gcc-plugins/Makefile b/scripts/gcc-plugins/Makefile index efff00959a9c..f22858b2c3d6 100644 --- a/scripts/gcc-plugins/Makefile +++ b/scripts/gcc-plugins/Makefile @@ -1,18 +1,9 @@ # SPDX-License-Identifier: GPL-2.0 -PLUGINCC := $(CONFIG_PLUGIN_HOSTCC:"%"=%) GCC_PLUGINS_DIR := $(shell $(CC) -print-file-name=plugin) -ifeq ($(PLUGINCC),$(HOSTCC)) - HOSTLIBS := hostlibs - HOST_EXTRACFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu99 -ggdb - export HOST_EXTRACFLAGS -else - HOSTLIBS := hostcxxlibs - HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti - HOST_EXTRACXXFLAGS += -fno-exceptions -fasynchronous-unwind-tables -ggdb - HOST_EXTRACXXFLAGS += -Wno-narrowing -Wno-unused-variable -Wno-c++11-compat - export HOST_EXTRACXXFLAGS -endif +HOST_EXTRACXXFLAGS += -I$(GCC_PLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti +HOST_EXTRACXXFLAGS += -fno-exceptions -fasynchronous-unwind-tables -ggdb +HOST_EXTRACXXFLAGS += -Wno-narrowing -Wno-unused-variable -Wno-c++11-compat $(obj)/randomize_layout_plugin.o: $(objtree)/$(obj)/randomize_layout_seed.h quiet_cmd_create_randomize_layout_seed = GENSEED $@ @@ -22,9 +13,9 @@ $(objtree)/$(obj)/randomize_layout_seed.h: FORCE $(call if_changed,create_randomize_layout_seed) targets = randomize_layout_seed.h randomize_layout_hash.h -$(HOSTLIBS)-y := $(foreach p,$(GCC_PLUGIN),$(if $(findstring /,$(p)),,$(p))) -always-y := $($(HOSTLIBS)-y) +hostcxxlibs-y := $(foreach p,$(GCC_PLUGIN),$(if $(findstring /,$(p)),,$(p))) +always-y := $(hostcxxlibs-y) -$(foreach p,$($(HOSTLIBS)-y:%.so=%),$(eval $(p)-objs := $(p).o)) +$(foreach p,$(hostcxxlibs-y:%.so=%),$(eval $(p)-objs := $(p).o)) clean-files += *.so diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc index 50a5245d87bb..c0ac8f7b5f1a 100644 --- a/scripts/kconfig/qconf.cc +++ b/scripts/kconfig/qconf.cc @@ -154,9 +154,9 @@ void ConfigItem::updateMenu(void) if (!sym_is_changeable(sym) && list->optMode == normalOpt) { setPixmap(promptColIdx, QIcon()); - setText(noColIdx, QString::null); - setText(modColIdx, QString::null); - setText(yesColIdx, QString::null); + setText(noColIdx, QString()); + setText(modColIdx, QString()); + setText(yesColIdx, QString()); break; } expr = sym_get_tristate_value(sym); @@ -276,7 +276,7 @@ void ConfigLineEdit::show(ConfigItem* i) if (sym_get_string_value(item->menu->sym)) setText(QString::fromLocal8Bit(sym_get_string_value(item->menu->sym))); else - setText(QString::null); + setText(QString()); Parent::show(); setFocus(); } @@ -316,7 +316,10 @@ ConfigList::ConfigList(ConfigView* p, const char *name) setVerticalScrollMode(ScrollPerPixel); setHorizontalScrollMode(ScrollPerPixel); - setHeaderLabels(QStringList() << "Option" << "Name" << "N" << "M" << "Y" << "Value"); + if (mode == symbolMode) + setHeaderLabels(QStringList() << "Item" << "Name" << "N" << "M" << "Y" << "Value"); + else + setHeaderLabels(QStringList() << "Option" << "Name" << "N" << "M" << "Y" << "Value"); connect(this, SIGNAL(itemSelectionChanged(void)), SLOT(updateSelection(void))); @@ -397,6 +400,11 @@ void ConfigList::updateSelection(void) struct menu *menu; enum prop_type type; + if (mode == symbolMode) + setHeaderLabels(QStringList() << "Item" << "Name" << "N" << "M" << "Y" << "Value"); + else + setHeaderLabels(QStringList() << "Option" << "Name" << "N" << "M" << "Y" << "Value"); + if (selectedItems().count() == 0) return; @@ -625,7 +633,7 @@ void ConfigList::updateMenuList(ConfigItem *parent, struct menu* menu) last = item; continue; } - hide: +hide: if (item && item->menu == child) { last = parent->firstChild(); if (last == item) @@ -690,7 +698,7 @@ void ConfigList::updateMenuList(ConfigList *parent, struct menu* menu) last = item; continue; } - hide: +hide: if (item && item->menu == child) { last = (ConfigItem*)parent->topLevelItem(0); if (last == item) @@ -734,7 +742,10 @@ void ConfigList::keyPressEvent(QKeyEvent* ev) type = menu->prompt ? menu->prompt->type : P_UNKNOWN; if (type == P_MENU && rootEntry != menu && mode != fullMode && mode != menuMode) { - emit menuSelected(menu); + if (mode == menuMode) + emit menuSelected(menu); + else + emit itemSelected(menu); break; } case Qt::Key_Space: @@ -826,7 +837,7 @@ void ConfigList::mouseMoveEvent(QMouseEvent* e) void ConfigList::mouseDoubleClickEvent(QMouseEvent* e) { - QPoint p = e->pos(); // TODO: Check if this works(was contentsToViewport). + QPoint p = e->pos(); ConfigItem* item = (ConfigItem*)itemAt(p); struct menu *menu; enum prop_type ptype; @@ -841,9 +852,12 @@ void ConfigList::mouseDoubleClickEvent(QMouseEvent* e) if (!menu) goto skip; ptype = menu->prompt ? menu->prompt->type : P_UNKNOWN; - if (ptype == P_MENU && (mode == singleMode || mode == symbolMode)) - emit menuSelected(menu); - else if (menu->sym) + if (ptype == P_MENU) { + if (mode == singleMode) + emit itemSelected(menu); + else if (mode == symbolMode) + emit menuSelected(menu); + } else if (menu->sym) changeValue(item); skip: @@ -1223,10 +1237,11 @@ QMenu* ConfigInfoView::createStandardContextMenu(const QPoint & pos) { QMenu* popup = Parent::createStandardContextMenu(pos); QAction* action = new QAction("Show Debug Info", popup); - action->setCheckable(true); - connect(action, SIGNAL(toggled(bool)), SLOT(setShowDebug(bool))); - connect(this, SIGNAL(showDebugChanged(bool)), action, SLOT(setOn(bool))); - action->setChecked(showDebug()); + + action->setCheckable(true); + connect(action, SIGNAL(toggled(bool)), SLOT(setShowDebug(bool))); + connect(this, SIGNAL(showDebugChanged(bool)), action, SLOT(setOn(bool))); + action->setChecked(showDebug()); popup->addSeparator(); popup->addAction(action); return popup; @@ -1352,21 +1367,32 @@ ConfigMainWindow::ConfigMainWindow(void) if ((x.isValid())&&(y.isValid())) move(x.toInt(), y.toInt()); - split1 = new QSplitter(this); + QWidget *widget = new QWidget(this); + QVBoxLayout *layout = new QVBoxLayout(widget); + setCentralWidget(widget); + + split1 = new QSplitter(widget); split1->setOrientation(Qt::Horizontal); - setCentralWidget(split1); + split1->setChildrenCollapsible(false); - menuView = new ConfigView(split1, "menu"); + menuView = new ConfigView(widget, "menu"); menuList = menuView->list; - split2 = new QSplitter(split1); + split2 = new QSplitter(widget); + split2->setChildrenCollapsible(false); split2->setOrientation(Qt::Vertical); // create config tree - configView = new ConfigView(split2, "config"); + configView = new ConfigView(widget, "config"); configList = configView->list; - helpText = new ConfigInfoView(split2, "help"); + helpText = new ConfigInfoView(widget, "help"); + + layout->addWidget(split2); + split2->addWidget(split1); + split1->addWidget(configView); + split1->addWidget(menuView); + split2->addWidget(helpText); setTabOrder(configList, helpText); configList->setFocus(); @@ -1484,6 +1510,8 @@ ConfigMainWindow::ConfigMainWindow(void) helpText, SLOT(setInfo(struct menu *))); connect(configList, SIGNAL(menuSelected(struct menu *)), SLOT(changeMenu(struct menu *))); + connect(configList, SIGNAL(itemSelected(struct menu *)), + SLOT(changeItens(struct menu *))); connect(configList, SIGNAL(parentSelected()), SLOT(goBack())); connect(menuList, SIGNAL(menuChanged(struct menu *)), @@ -1580,15 +1608,26 @@ void ConfigMainWindow::searchConfig(void) searchWindow->show(); } -void ConfigMainWindow::changeMenu(struct menu *menu) +void ConfigMainWindow::changeItens(struct menu *menu) { configList->setRootMenu(menu); + if (configList->rootEntry->parent == &rootmenu) backAction->setEnabled(false); else backAction->setEnabled(true); } +void ConfigMainWindow::changeMenu(struct menu *menu) +{ + menuList->setRootMenu(menu); + + if (menuList->rootEntry->parent == &rootmenu) + backAction->setEnabled(false); + else + backAction->setEnabled(true); +} + void ConfigMainWindow::setMenuLink(struct menu *menu) { struct menu *parent; @@ -1698,14 +1737,14 @@ void ConfigMainWindow::showSplitView(void) fullViewAction->setEnabled(true); fullViewAction->setChecked(false); - configList->mode = symbolMode; + configList->mode = menuMode; if (configList->rootEntry == &rootmenu) configList->updateListAll(); else configList->setRootMenu(&rootmenu); configList->setAllOpen(true); configApp->processEvents(); - menuList->mode = menuMode; + menuList->mode = symbolMode; menuList->setRootMenu(&rootmenu); menuList->setAllOpen(true); menuView->show(); @@ -1733,7 +1772,6 @@ void ConfigMainWindow::showFullView(void) /* * ask for saving configuration before quitting - * TODO ask only when something changed */ void ConfigMainWindow::closeEvent(QCloseEvent* e) { diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h index 45bfe9b2b966..c879d79ce817 100644 --- a/scripts/kconfig/qconf.h +++ b/scripts/kconfig/qconf.h @@ -71,6 +71,7 @@ public slots: signals: void menuChanged(struct menu *menu); void menuSelected(struct menu *menu); + void itemSelected(struct menu *menu); void parentSelected(void); void gotFocus(struct menu *); @@ -298,6 +299,7 @@ public: ConfigMainWindow(void); public slots: void changeMenu(struct menu *); + void changeItens(struct menu *); void setMenuLink(struct menu *); void listFocusChanged(void); void goBack(void); diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h index 3ff26e5b2eac..5b80a4699740 100755 --- a/scripts/mkcompile_h +++ b/scripts/mkcompile_h @@ -7,6 +7,7 @@ SMP=$3 PREEMPT=$4 PREEMPT_RT=$5 CC=$6 +LD=$7 vecho() { [ "${quiet}" = "silent_" ] || echo "$@" ; } @@ -61,7 +62,10 @@ UTS_VERSION="$(echo $UTS_VERSION $CONFIG_FLAGS $TIMESTAMP | cut -b -$UTS_LEN)" printf '#define LINUX_COMPILE_BY "%s"\n' "$LINUX_COMPILE_BY" echo \#define LINUX_COMPILE_HOST \"$LINUX_COMPILE_HOST\" - echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | grep ' version ' | sed 's/[[:space:]]*$//'`\" + CC_VERSION=$($CC -v 2>&1 | grep ' version ' | sed 's/[[:space:]]*$//') + LD_VERSION=$($LD -v | head -n1 | sed 's/(compatible with [^)]*)//' \ + | sed 's/[[:space:]]*$//') + printf '#define LINUX_COMPILER "%s"\n' "$CC_VERSION, $LD_VERSION" } > .tmpcompile # Only replace the real compile.h if the new one is different, diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile index ee08aeff30a1..f591c4d1b6fe 100644 --- a/tools/objtool/Makefile +++ b/tools/objtool/Makefile @@ -3,9 +3,15 @@ include ../scripts/Makefile.include include ../scripts/Makefile.arch # always use the host compiler +ifneq ($(LLVM),) +HOSTAR ?= llvm-ar +HOSTCC ?= clang +HOSTLD ?= ld.lld +else HOSTAR ?= ar HOSTCC ?= gcc HOSTLD ?= ld +endif AR = $(HOSTAR) CC = $(HOSTCC) LD = $(HOSTLD) diff --git a/usr/include/Makefile b/usr/include/Makefile index a339ef325aa5..b568a95d1f62 100644 --- a/usr/include/Makefile +++ b/usr/include/Makefile @@ -93,7 +93,7 @@ no-header-test += asm-generic/% extra-y := $(patsubst $(obj)/%.h,%.hdrtest, $(shell find $(obj) -name '*.h' 2>/dev/null)) -# Include the header to detect missing include guard. +# Include the header twice to detect missing include guard. quiet_cmd_hdrtest = HDRTEST $< cmd_hdrtest = \ $(CC) $(c_flags) -S -o /dev/null -x c /dev/null \ |