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authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-14 13:54:50 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-14 13:54:50 -0800
commit84292fffc2468125632a21c09533a89426ea212e (patch)
treed2ec4f5d668ebb45ada890c6c9c9b9e042b2a6dd /arch/x86/Makefile
parent8ba27ae36b416a1507e783dbee4bb521fd6bb519 (diff)
parent2838307b019dfec0c309c4e8e589658736cff4c9 (diff)
Merge tag 'x86_build_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 build updates from Borislav Petkov: "Two x86 build fixes: - Fix the vmlinux size check on 64-bit along with adding useful clarifications on the topic (Arvind Sankar) - Remove -m16 workaround now that the GCC versions that need it are unsupported (Nick Desaulniers)" * tag 'x86_build_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/build: Remove -m16 workaround for unsupported versions of GCC x86/build: Fix vmlinux size check on 64-bit
Diffstat (limited to 'arch/x86/Makefile')
-rw-r--r--arch/x86/Makefile9
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 1bf21746f4ce..7116da3980be 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -24,14 +24,7 @@ endif
# How to compile the 16-bit code. Note we always compile for -march=i386;
# that way we can complain to the user if the CPU is insufficient.
-#
-# The -m16 option is supported by GCC >= 4.9 and clang >= 3.5. For
-# older versions of GCC, include an *assembly* header to make sure that
-# gcc doesn't play any games behind our back.
-CODE16GCC_CFLAGS := -m32 -Wa,$(srctree)/arch/x86/boot/code16gcc.h
-M16_CFLAGS := $(call cc-option, -m16, $(CODE16GCC_CFLAGS))
-
-REALMODE_CFLAGS := $(M16_CFLAGS) -g -Os -DDISABLE_BRANCH_PROFILING \
+REALMODE_CFLAGS := -m16 -g -Os -DDISABLE_BRANCH_PROFILING \
-Wall -Wstrict-prototypes -march=i386 -mregparm=3 \
-fno-strict-aliasing -fomit-frame-pointer -fno-pic \
-mno-mmx -mno-sse