nathanchance added a comment.
This change breaks building the Linux kernel for arm32 (at least):
...
YACC scripts/dtc/dtc-parser.tab.c
HOSTCC scripts/dtc/yamltree.o
HOSTCC scripts/dtc/dtc-parser.tab.o
HOSTCC scripts/dtc/dtc-lexer.lex.o
HOSTLD scripts/dtc/dtc
UPD include/config/kernel.release
UPD include/generated/utsrelease.h
HOSTCC scripts/asn1_compiler
HOSTCC scripts/extract-cert
HOSTCC scripts/sortextable
HOSTCC scripts/kallsyms
HOSTCC scripts/conmakehash
SYSNR arch/arm/include/generated/asm/unistd-nr.h
SYSTBL arch/arm/include/generated/calls-oabi.S
GEN arch/arm/include/generated/asm/mach-types.h
SYSTBL arch/arm/include/generated/calls-eabi.S
HOSTCC scripts/mod/mk_elfconfig
CC scripts/mod/devicetable-offsets.s
CC scripts/mod/empty.o
clang-9: error: unsupported argument '-mno-warn-deprecated' to option 'Wa,'
make[2]: *** [scripts/Makefile.build:112: scripts/mod/devicetable-offsets.s]
Error 1
make[2]: *** Waiting for unfinished jobs....
clang-9: error: unsupported argument '-mno-warn-deprecated' to option 'Wa,'
make[2]: *** [scripts/Makefile.build:279: scripts/mod/empty.o] Error 1
make[1]: *** [Makefile:1118: prepare0] Error 2
make: *** [Makefile:325: __build_one_by_one] Error 2
The full command line that causes the issue is:
/home/nathan/cbl/tc-build/build/llvm/stage1/bin/clang
-Wp,-MD,scripts/mod/.empty.o.d -nostdinc -isystem
/home/nathan/cbl/tc-build/build/llvm/stage1/lib/clang/9.0.0/include
-I./arch/arm/include -I./arch/arm/include/generated -I./include
-I./arch/arm/include/uapi -I./arch/arm/include/generated/uapi -I./include/uapi
-I./include/generated/uapi -include ./include/linux/kconfig.h -include
./include/linux/compiler_types.h -D__KERNEL__ -mlittle-endian
-Qunused-arguments -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE
-Werror=implicit-function-declaration -Werror=implicit-int -Wno-format-security
-std=gnu89 --target=arm-linux-gnueabi --prefix=/home/nathan/cbl/usr/bin/
--gcc-toolchain=/home/nathan/cbl/usr -no-integrated-as
-Werror=unknown-warning-option -fno-dwarf2-cfi-asm -mabi=aapcs-linux -mfpu=vfp
-funwind-tables -marm -Wa,-mno-warn-deprecated -D__LINUX_ARM_ARCH__=7
-march=armv7-a -msoft-float -Uarm -O2 -fstack-protector-strong
-Wno-format-invalid-specifier -Wno-gnu -Wno-tautological-compare
-mno-global-merge -fomit-frame-pointer -Wdeclaration-after-statement -Wvla
-Wno-pointer-sign -Wno-initializer-overrides -Wno-unused-value -Wno-format
-Wno-sign-compare -Wno-format-zero-length -DKBUILD_BASENAME='"empty"'
-DKBUILD_MODNAME='"empty"' -c -o scripts/mod/empty.o scripts/mod/empty.c
I'm not in the right state of mind (exhausted) to debug this but I wanted to
let you know in case you have any immediate ideas.
Repository:
rL LLVM
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D64527/new/
https://reviews.llvm.org/D64527
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