From 846915b6d07f53349de1e097b7143856619f34e0 Mon Sep 17 00:00:00 2001 From: Luca Stefani Date: Tue, 4 Aug 2020 18:01:47 +0200 Subject: [PATCH 2/2] kbuild: Rollback required CLANG version to 10 for LTO * ARM64 still requires CLANG 11 to fix https://github.com/ClangBuiltLinux/linux/issues/510 Signed-off-by: Luca Stefani --- arch/Kconfig | 2 +- arch/arm64/Kconfig | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/Kconfig b/arch/Kconfig index 694bfdc2073f..54f6a55180ca 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -595,7 +595,7 @@ config LTO_NONE config LTO_CLANG bool "Clang's Link Time Optimization (EXPERIMENTAL)" # https://github.com/ClangBuiltLinux/linux/issues/510 - depends on CC_IS_CLANG && CLANG_VERSION >= 110000 && LD_IS_LLD + depends on CC_IS_CLANG && CLANG_VERSION >= 100000 && LD_IS_LLD depends on $(success,$(NM) --help | head -n 1 | grep -qi llvm) depends on $(success,$(AR) --help | head -n 1 | grep -qi llvm) depends on ARCH_SUPPORTS_LTO_CLANG diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index c9fb665b62b5..1883f42e341c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -73,7 +73,7 @@ config ARM64 select ARCH_SUPPORTS_MEMORY_FAILURE select ARCH_SUPPORTS_SHADOW_CALL_STACK if CC_HAVE_SHADOW_CALL_STACK select ARCH_SUPPORTS_LTO_CLANG - select ARCH_SUPPORTS_THINLTO + select ARCH_SUPPORTS_THINLTO if CLANG_VERSION >= 110000 select ARCH_SUPPORTS_ATOMIC_RMW select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && (GCC_VERSION >= 50000 || CC_IS_CLANG) select ARCH_SUPPORTS_NUMA_BALANCING -- 2.28.0