ld.lld: error: debug_core.c:(.init.text+0xD8): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax

[kernel test robot <lkp@intel.com>]

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CC: linux-kernel(a)vger.kernel.org
TO: Douglas Anderson <dianders@chromium.org>
CC: Daniel Thompson <daniel.thompson@linaro.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   b65054597872ce3aefbc6a666385eabdf9e288da
commit: b18b099e04f450cdc77bec72acefcde7042bd1f3 kgdb: Make "kgdbcon" work properly with "kgdb_earlycon"
date:   3 months ago
config: riscv-randconfig-r004-20201130 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project dfcf1acf13226be0f599a7ab6b395b66dc9545d6)
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/torvalds/linux.git/commit/?id=b18b099e04f450cdc77bec72acefcde7042bd1f3
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout b18b099e04f450cdc77bec72acefcde7042bd1f3
        # 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 <lkp@intel.com>

All errors (new ones prefixed by >>):

   ld.lld: error: arch/riscv/kernel/head.o:(.head.text+0x8): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.text+0x1900): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.text+0x191A): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.text+0x19B4): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.text+0x1BFA): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.text+0x1D34): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.text+0x1DAA): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.text+0x1DF6): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.text+0x1E30): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.text+0x1EBA): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.text+0x1EE8): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.text+0x1F06): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.text+0x1F8A): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
>> ld.lld: error: debug_core.c:(.init.text+0xD8): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: debug_core.c:(.init.text+0x176): relocation R_RISCV_ALIGN requires unimplemented linker relaxation; recompile with -mno-relax
   ld.lld: error: undefined symbol: stpcpy
   >>> referenced by tty_io.c
   >>>               tty/tty_io.o:(alloc_tty_struct) in archive drivers/built-in.a
   >>> referenced by tty_io.c
   >>>               tty/tty_io.o:(tty_register_device_attr) in archive drivers/built-in.a
   >>> referenced by tty_io.c
   >>>               tty/tty_io.o:(show_cons_active) in archive drivers/built-in.a
   >>> referenced 1 more times
   >>> did you mean: strcpy
   >>> defined in: lib/lib.a(string.o)

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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