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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-04-10 22:13:33 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-04-10 22:13:33 +0200 |
| commit | 411eb014108594d160a20381e8738de6c62e2e5b (patch) | |
| tree | 39b65f481ffda186aeafd6bcd1c11c5e6bf8bcec | |
| parent | Linux 6.3-rc6 (diff) | |
| parent | um: Only disable SSE on clang to work around old GCC bugs (diff) | |
| download | linux-411eb014108594d160a20381e8738de6c62e2e5b.tar.xz linux-411eb014108594d160a20381e8738de6c62e2e5b.zip | |
Merge tag 'uml-for-linus-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux
Pull UML fix from Richard Weinberger:
- Build regression fix for older gcc versions
* tag 'uml-for-linus-6.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux:
um: Only disable SSE on clang to work around old GCC bugs
| -rw-r--r-- | arch/x86/Makefile.um | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um index b70559b821df..2106a2bd152b 100644 --- a/arch/x86/Makefile.um +++ b/arch/x86/Makefile.um @@ -3,9 +3,14 @@ core-y += arch/x86/crypto/ # # Disable SSE and other FP/SIMD instructions to match normal x86 +# This is required to work around issues in older LLVM versions, but breaks +# GCC versions < 11. See: +# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99652 # +ifeq ($(CONFIG_CC_IS_CLANG),y) KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx KBUILD_RUSTFLAGS += -Ctarget-feature=-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2 +endif ifeq ($(CONFIG_X86_32),y) START := 0x8048000 |