nickdesaulniers added a comment.
In D72222#1837184 <https://reviews.llvm.org/D72222#1837184>, @MaskRay wrote:
> @peter.smith The build was smooth. Do I need other options to reproduce?
I was able to reproduce:
$ git clone --depth 1
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
$ cd linux-next
$ ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make CC=clang -j71 allyesconfig
$ ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make CC=clang -j71
mm/kasan/quarantine.o
The exact compiler invocation (via tacking on `V=1` to the above `make` command
is:
$ clang -Wp,-MD,mm/kasan/.quarantine.o.d -nostdinc -isystem
/android0/llvm-project/llvm/build/lib/clang/11.0.0/include
-I./arch/arm64/include -I./arch/arm64/include/generated -I./include
-I./arch/arm64/include/uapi -I./arch/arm64/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
-DCC_USING_PATCHABLE_FUNCTION_ENTRY -DKASAN_SHADOW_SCALE_SHIFT=3
-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=aarch64-linux-gnu --prefix=/usr/bin/ --gcc-toolchain=/usr
-no-integrated-as -Werror=unknown-warning-option -mgeneral-regs-only
-DCONFIG_CC_HAS_K_CONSTRAINT=1 -fno-asynchronous-unwind-tables
-DKASAN_SHADOW_SCALE_SHIFT=3 -fno-delete-null-pointer-checks
-Wno-address-of-packed-member -O2 -Wframe-larger-than=2048
-fstack-protector-strong -Wno-format-invalid-specifier -Wno-gnu
-Wno-tautological-compare -mno-global-merge -Wno-unused-const-variable
-fno-omit-frame-pointer -fno-optimize-sibling-calls
-ftrivial-auto-var-init=pattern -fpatchable-function-entry=2
-Wdeclaration-after-statement -Wvla -Wno-pointer-sign -fno-strict-overflow
-fno-merge-all-constants -fno-stack-check -Werror=date-time
-Werror=incompatible-pointer-types -fmacro-prefix-map=./=
-Wno-initializer-overrides -Wno-format -Wno-sign-compare
-Wno-format-zero-length -fno-builtin
-DKBUILD_MODFILE='"mm/kasan/quarantine"' -DKBUILD_BASENAME='"quarantine"'
-DKBUILD_MODNAME='"quarantine"' -c -o mm/kasan/quarantine.o
mm/kasan/quarantine.c
creduce spits out:
// $ clang -O2 quarantine.i
__attribute__((patchable_function_entry(0))) a() {
b(({
c:
&&c;
}));
}
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D72222/new/
https://reviews.llvm.org/D72222
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