[tip:efi/core 3/7] /tmp/slab-258052.s:9870: Error: unrecognized opcode `zext.b a2,a2'

[kernel test robot]

tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git efi/core
head: b283477d394ac41ca59ee20eb9293ae9002eb1d7
commit: 6edcf9dc2e1aff3aa1f5a69ee420fb30dd0e968a [3/7] efi/libstub: EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER should not default to yes
config: riscv-randconfig-r022-20201217 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project cee1e7d14f4628d6174b33640d502bff3b54ae45)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=6edcf9dc2e1aff3aa1f5a69ee420fb30dd0e968a
git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
git fetch --no-tags tip efi/core
git checkout 6edcf9dc2e1aff3aa1f5a69ee420fb30dd0e968a
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>

All errors (new ones prefixed by >>):

In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:572:9: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return inl(addr);
^~~~~~~~~
arch/riscv/include/asm/io.h:57:76: note: expanded from macro 'inl'
#define inl(c) ({ u32 __v; __io_pbr(); __v = readl_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:89:76: note: expanded from macro 'readl_cpu'
#define readl_cpu(c) ({ u32 __r = le32_to_cpu((__force __le32)__raw_readl(c)); __r; })
^
include/uapi/linux/byteorder/little_endian.h:34:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from mm/slab.c:93:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:13:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:580:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outb(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:59:68: note: expanded from macro 'outb'
#define outb(v,c) ({ __io_pbw(); writeb_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:91:52: note: expanded from macro 'writeb_cpu'
#define writeb_cpu(v, c) ((void)__raw_writeb((v), (c)))
^
In file included from mm/slab.c:93:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:13:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:588:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outw(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:60:68: note: expanded from macro 'outw'
#define outw(v,c) ({ __io_pbw(); writew_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:92:76: note: expanded from macro 'writew_cpu'
#define writew_cpu(v, c) ((void)__raw_writew((__force u16)cpu_to_le16(v), (c)))
^
In file included from mm/slab.c:93:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:13:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:596:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outl(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:61:68: note: expanded from macro 'outl'
#define outl(v,c) ({ __io_pbw(); writel_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:93:76: note: expanded from macro 'writel_cpu'
#define writel_cpu(v, c) ((void)__raw_writel((__force u32)cpu_to_le32(v), (c)))
^
In file included from mm/slab.c:93:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:13:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:1005:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
~~~~~~~~~~ ^
mm/slab.c:621:21: warning: unused function 'alternate_node_alloc' [-Wunused-function]
static inline void *alternate_node_alloc(struct kmem_cache *cachep,
^
mm/slab.c:627:21: warning: unused function '____cache_alloc_node' [-Wunused-function]
static inline void *____cache_alloc_node(struct kmem_cache *cachep,
^
9 warnings generated.
/tmp/slab-258052.s: Assembler messages:
>> /tmp/slab-258052.s:9870: Error: unrecognized opcode `zext.b a2,a2'
clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)
--
return inl(addr);
^~~~~~~~~
arch/riscv/include/asm/io.h:57:76: note: expanded from macro 'inl'
#define inl(c) ({ u32 __v; __io_pbr(); __v = readl_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:89:76: note: expanded from macro 'readl_cpu'
#define readl_cpu(c) ({ u32 __r = le32_to_cpu((__force __le32)__raw_readl(c)); __r; })
^
include/uapi/linux/byteorder/little_endian.h:34:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from drivers/iio/dac/ad5592r-base.c:15:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:13:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:580:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outb(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:59:68: note: expanded from macro 'outb'
#define outb(v,c) ({ __io_pbw(); writeb_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:91:52: note: expanded from macro 'writeb_cpu'
#define writeb_cpu(v, c) ((void)__raw_writeb((v), (c)))
^
In file included from drivers/iio/dac/ad5592r-base.c:15:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:13:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:588:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outw(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:60:68: note: expanded from macro 'outw'
#define outw(v,c) ({ __io_pbw(); writew_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:92:76: note: expanded from macro 'writew_cpu'
#define writew_cpu(v, c) ((void)__raw_writew((__force u16)cpu_to_le16(v), (c)))
^
In file included from drivers/iio/dac/ad5592r-base.c:15:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:13:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:596:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outl(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:61:68: note: expanded from macro 'outl'
#define outl(v,c) ({ __io_pbw(); writel_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:93:76: note: expanded from macro 'writel_cpu'
#define writel_cpu(v, c) ((void)__raw_writel((__force u32)cpu_to_le32(v), (c)))
^
In file included from drivers/iio/dac/ad5592r-base.c:15:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:10:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:13:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:1005:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
~~~~~~~~~~ ^
7 warnings generated.
/tmp/ad5592r-base-302330.s: Assembler messages:
/tmp/ad5592r-base-302330.s:948: Error: unrecognized opcode `zext.b a2,s4'
>> /tmp/ad5592r-base-302330.s:959: Error: unrecognized opcode `zext.b a2,s8'
/tmp/ad5592r-base-302330.s:970: Error: unrecognized opcode `zext.b a2,s7'
/tmp/ad5592r-base-302330.s:981: Error: unrecognized opcode `zext.b s3,s3'
/tmp/ad5592r-base-302330.s:1822: Error: unrecognized opcode `zext.b a2,a1'
/tmp/ad5592r-base-302330.s:1911: Error: unrecognized opcode `zext.b a2,a1'
/tmp/ad5592r-base-302330.s:2080: Error: unrecognized opcode `zext.b a2,a0'
clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)
--
/tmp/hdmi-116210.s: Assembler messages:
>> /tmp/hdmi-116210.s:4792: Error: unrecognized opcode `zext.b a0,a1'
/tmp/hdmi-116210.s:4838: Error: unrecognized opcode `zext.b a0,a1'
/tmp/hdmi-116210.s:4884: Error: unrecognized opcode `zext.b a0,a1'
/tmp/hdmi-116210.s:4930: Error: unrecognized opcode `zext.b a0,a1'
>> /tmp/hdmi-116210.s:4992: Error: unrecognized opcode `zext.b a0,a2'
/tmp/hdmi-116210.s:5252: Error: unrecognized opcode `zext.b a1,a1'
clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuil...@lists.01.org

[Borislav Petkov]

On Fri, Dec 18, 2020 at 09:03:14AM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git efi/core
> head: b283477d394ac41ca59ee20eb9293ae9002eb1d7
> commit: 6edcf9dc2e1aff3aa1f5a69ee420fb30dd0e968a [3/7] efi/libstub: EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER should not default to yes
> config: riscv-randconfig-r022-20201217 (attached as .config)
> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project cee1e7d14f4628d6174b33640d502bff3b54ae45)
> reproduce (this is a W=1 build):
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # install riscv cross compiling tool for clang build
> # apt-get install binutils-riscv64-linux-gnu
> # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=6edcf9dc2e1aff3aa1f5a69ee420fb30dd0e968a
> git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
> git fetch --no-tags tip efi/core
> git checkout 6edcf9dc2e1aff3aa1f5a69ee420fb30dd0e968a
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv

Something's still not good with that test - it fails much earlier for me:

$ COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang /tmp/make.cross ARCH=riscv
Compiler will be installed in /home/boris/0day
cd: received redirection to `https://download.01.org/0day-ci/cross-package/'
lftpget -c https://download.01.org/0day-ci/cross-package/./clang-latest/clang.tar.xz
tar Jxf clang-latest/clang.tar.xz -C /home/boris/0day
make W=1 CONFIG_OF_ALL_DTBS=y CONFIG_DTC=y HOSTCC=/home/boris/0day/clang-latest/bin/clang CC=/home/boris/0day/clang-latest/bin/clang LD=/home/boris/0day/clang-latest/bin/ld.lld HOSTLD=/home/boris/0day/clang-latest/bin/ld.lld AR=/home/boris/0day/clang-latest/bin/llvm-ar NM=/home/boris/0day/clang-latest/bin/llvm-nm STRIP=/home/boris/0day/clang-latest/bin/llvm-strip OBJDUMP=/home/boris/0day/clang-latest/bin/llvm-objdump OBJSIZE=/home/boris/0day/clang-latest/bin/llvm-size READELF=/home/boris/0day/clang-latest/bin/llvm-readelf HOSTCXX=/home/boris/0day/clang-latest/bin/clang++ HOSTAR=/home/boris/0day/clang-latest/bin/llvm-ar CROSS_COMPILE=riscv-linux-gnu- --jobs=32 ARCH=riscv
SYNC include/config/auto.conf.cmd
...

scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
DTC arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dtb
DTC arch/riscv/boot/dts/kendryte/k210.dtb
HOSTCC scripts/genksyms/parse.tab.o
HOSTCC scripts/genksyms/lex.lex.o
HOSTLD scripts/genksyms/genksyms
CC scripts/mod/empty.o
HOSTCC scripts/mod/mk_elfconfig
CC scripts/mod/devicetable-offsets.s
error: unknown target triple 'riscv-unknown-linux-gnu', please use -triple or -arch
make[1]: *** [scripts/Makefile.build:117: scripts/mod/devicetable-offsets.s] Error 1
make[1]: *** Waiting for unfinished jobs....
error: unknown target triple 'riscv-unknown-linux-gnu', please use -triple or -arch
make[1]: *** [scripts/Makefile.build:283: scripts/mod/empty.o] Error 1
make: *** [Makefile:1199: prepare0] Error 2
$

--
Regards/Gruss,
Boris.

https://people.kernel.org/tglx/notes-about-netiquette

[Nick Desaulniers]

Boris,
Thanks for taking the time to try to repro, and the report. Just
curious, which clang are you using? Is it from your distro? If you
have `llc` installed, can you send me the output of `llc --version`?

The reason I ask is; unlike GCC, Clang ships with all non-experimental
backends on by default, and relies on `--target=<triple>` when cross
compiling. You can disable backends when configuring a build of LLVM,
but it's frowned upon for distributions to do so (I do it locally to
speed up development). The above error is indicating that LLVM was
configured to not have RISCV support.

The RISCV backend only recently became a non-experimental (as in on by
default) backend a couple of releases ago, so either you have an old
clang that was intentionally built without experimental backends
(solution: use newer clang, where it should be on by default), or your
distro has disabled the backend (solution: encourage the package
maintainer to fix that), (or you configured LLVM yourself and didn't
enable RISCV).

Either way, you can ignore this report. Known issue with further
discussion here: https://github.com/ClangBuiltLinux/linux/issues/1220.
Happy holidays+new year.

> make[1]: *** [scripts/Makefile.build:117: scripts/mod/devicetable-offsets.s] Error 1
> make[1]: *** Waiting for unfinished jobs....
> error: unknown target triple 'riscv-unknown-linux-gnu', please use -triple or -arch
> make[1]: *** [scripts/Makefile.build:283: scripts/mod/empty.o] Error 1
> make: *** [Makefile:1199: prepare0] Error 2
> $
>
> --
> Regards/Gruss,
> Boris.
>
> https://people.kernel.org/tglx/notes-about-netiquette
>

> --
> You received this message because you are subscribed to the Google Groups "Clang Built Linux" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to clang-built-li...@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/clang-built-linux/20201223183606.GB29011%40zn.tnic.



--
Thanks,
~Nick Desaulniers

[Borislav Petkov]

On Wed, Dec 23, 2020 at 12:02:33PM -0800, Nick Desaulniers wrote:
> On Wed, Dec 23, 2020 at 10:36 AM Borislav Petkov <b...@alien8.de> wrote:
> >
> > On Fri, Dec 18, 2020 at 09:03:14AM +0800, kernel test robot wrote:
> > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git efi/core
> > > head: b283477d394ac41ca59ee20eb9293ae9002eb1d7
> > > commit: 6edcf9dc2e1aff3aa1f5a69ee420fb30dd0e968a [3/7] efi/libstub: EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER should not default to yes
> > > config: riscv-randconfig-r022-20201217 (attached as .config)
> > > compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project cee1e7d14f4628d6174b33640d502bff3b54ae45)
> > > reproduce (this is a W=1 build):
> > > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> > > chmod +x ~/bin/make.cross
> > > # install riscv cross compiling tool for clang build
> > > # apt-get install binutils-riscv64-linux-gnu
> > > # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=6edcf9dc2e1aff3aa1f5a69ee420fb30dd0e968a
> > > git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
> > > git fetch --no-tags tip efi/core
> > > git checkout 6edcf9dc2e1aff3aa1f5a69ee420fb30dd0e968a
> > > # save the attached .config to linux build tree
> > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv

...

> Thanks for taking the time to try to repro, and the report. Just
> curious, which clang are you using? Is it from your distro? If you
> have `llc` installed, can you send me the output of `llc --version`?
>
> The reason I ask is; unlike GCC, Clang ships with all non-experimental
> backends on by default, and relies on `--target=<triple>` when cross
> compiling.

I just did the steps outlined above, in the mail. Look for "reproduce
(this is a W=1 build):" above. I guess that make.cross script needs to
be fixed to do the --target thing, I haven't looked.

clang is downloaded by the script, just do the steps and you'll see:

> > cd: received redirection to `https://download.01.org/0day-ci/cross-package/'
> > lftpget -c https://download.01.org/0day-ci/cross-package/./clang-latest/clang.tar.xz

Thx.

> Happy holidays+new year.

Ditto!

:-)

[Ard Biesheuvel]

Hello Boris,

On Wed, 23 Dec 2020 at 22:04, Borislav Petkov <b...@alien8.de> wrote:
>
> On Wed, Dec 23, 2020 at 12:02:33PM -0800, Nick Desaulniers wrote:
> > On Wed, Dec 23, 2020 at 10:36 AM Borislav Petkov <b...@alien8.de> wrote:
> > >
> > > On Fri, Dec 18, 2020 at 09:03:14AM +0800, kernel test robot wrote:
> > > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git efi/core
> > > > head: b283477d394ac41ca59ee20eb9293ae9002eb1d7
> > > > commit: 6edcf9dc2e1aff3aa1f5a69ee420fb30dd0e968a [3/7] efi/libstub: EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER should not default to yes
> > > > config: riscv-randconfig-r022-20201217 (attached as .config)
> > > > compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project cee1e7d14f4628d6174b33640d502bff3b54ae45)
> > > > reproduce (this is a W=1 build):
> > > > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> > > > chmod +x ~/bin/make.cross
> > > > # install riscv cross compiling tool for clang build
> > > > # apt-get install binutils-riscv64-linux-gnu
> > > > # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=6edcf9dc2e1aff3aa1f5a69ee420fb30dd0e968a
> > > > git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
> > > > git fetch --no-tags tip efi/core
> > > > git checkout 6edcf9dc2e1aff3aa1f5a69ee420fb30dd0e968a
> > > > # save the attached .config to linux build tree
> > > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
>

I hope this report is not holding up the PR for efi/core?

> ...
>
> > Thanks for taking the time to try to repro, and the report. Just
> > curious, which clang are you using? Is it from your distro? If you
> > have `llc` installed, can you send me the output of `llc --version`?
> >
> > The reason I ask is; unlike GCC, Clang ships with all non-experimental
> > backends on by default, and relies on `--target=<triple>` when cross
> > compiling.
>
> I just did the steps outlined above, in the mail. Look for "reproduce
> (this is a W=1 build):" above. I guess that make.cross script needs to
> be fixed to do the --target thing, I haven't looked.
>
> clang is downloaded by the script, just do the steps and you'll see:
>
> > > cd: received redirection to `https://download.01.org/0day-ci/cross-package/'
> > > lftpget -c https://download.01.org/0day-ci/cross-package/./clang-latest/clang.tar.xz
>
> Thx.
>
> > Happy holidays+new year.
>
> Ditto!
>
> :-)
>

Likewise!

[Borislav Petkov]

Hi Ard,

On Wed, Dec 23, 2020 at 11:43:45PM +0100, Ard Biesheuvel wrote:
> I hope this report is not holding up the PR for efi/core?

I was just looking at that yesterday...

But nah, lemme send it.

Thx.

[Ard Biesheuvel]

On Thu, 24 Dec 2020 at 09:55, Borislav Petkov <b...@alien8.de> wrote:
>
> Hi Ard,
>
> On Wed, Dec 23, 2020 at 11:43:45PM +0100, Ard Biesheuvel wrote:
> > I hope this report is not holding up the PR for efi/core?
>
> I was just looking at that yesterday...
>
> But nah, lemme send it.
>

Cheers,