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riscv: Fix build errors using binutils2.37 toolchains 

When building the kernel with binutils 2.37 and GCC-11.1.0/GCC-11.2.0,
the following error occurs:

  Assembler messages:
  Error: cannot find default versions of the ISA extension `zicsr'
  Error: cannot find default versions of the ISA extension `zifencei'

The above error originated from this commit of binutils[0], which has been
resolved and backported by GCC-12.1.0[1] and GCC-11.3.0[2].

So fix this by change the GCC version in
CONFIG_TOOLCHAIN_NEEDS_OLD_ISA_SPEC to GCC-11.3.0.

Link: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=f0bae2552db1dd4f1995608fbf6648fcee4e9e0c [0]
Link: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=ca2bbb88f999f4d3cc40e89bc1aba712505dd598 [1]
Link: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=d29f5d6ab513c52fd872f532c492e35ae9fd6671 [2]
Fixes: ca09f772cc ("riscv: Handle zicsr/zifencei issue between gcc and binutils")
Reported-by: Conor Dooley <conor.dooley@microchip.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Mingzheng Xing <xingmingzheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20230824190852.45470-1-xingmingzheng@iscas.ac.cn
Closes: https://lore.kernel.org/all/20230823-captive-abdomen-befd942a4a73@wendy/
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Mingzheng Xing 2023-08-25 03:08:52 +08:00 committed by Palmer Dabbelt
parent e2de1646f7
commit ef21fa7c19
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1 changed files with 4 additions and 4 deletions
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8
arch/riscv/Kconfig
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@ -580,15 +580,15 @@ config TOOLCHAIN_NEEDS_EXPLICIT_ZICSR_ZIFENCEI
and Zifencei are supported in binutils from version 2.36 onwards.
To make life easier, and avoid forcing toolchains that default to a
newer ISA spec to version 2.2, relax the check to binutils >= 2.36.
For clang < 17 or GCC < 11.1.0, for which this is not possible, this is
dealt with in CONFIG_TOOLCHAIN_NEEDS_OLD_ISA_SPEC.
For clang < 17 or GCC < 11.3.0, for which this is not possible or need
special treatment, this is dealt with in TOOLCHAIN_NEEDS_OLD_ISA_SPEC.
config TOOLCHAIN_NEEDS_OLD_ISA_SPEC
def_bool y
depends on TOOLCHAIN_NEEDS_EXPLICIT_ZICSR_ZIFENCEI
# https://github.com/llvm/llvm-project/commit/22e199e6afb1263c943c0c0d4498694e15bf8a16
# https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=b03be74bad08c382da47e048007a78fa3fb4ef49
depends on (CC_IS_CLANG && CLANG_VERSION < 170000) || (CC_IS_GCC && GCC_VERSION < 110100)
# https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=d29f5d6ab513c52fd872f532c492e35ae9fd6671
depends on (CC_IS_CLANG && CLANG_VERSION < 170000) || (CC_IS_GCC && GCC_VERSION < 110300)
help
Certain versions of clang and GCC do not support zicsr and zifencei via
-march. This option causes an older ISA spec compatible with these older