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-rw-r--r--arch/x86/boot/Makefile26
1 files changed, 4 insertions, 22 deletions
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 3cece19b7473..81f55da81967 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -9,19 +9,6 @@
# Changed by many, many contributors over the years.
#
-# Sanitizer runtimes are unavailable and cannot be linked for early boot code.
-KASAN_SANITIZE := n
-KCSAN_SANITIZE := n
-KMSAN_SANITIZE := n
-OBJECT_FILES_NON_STANDARD := y
-
-# Kernel does not boot with kcov instrumentation here.
-# One of the problems observed was insertion of __sanitizer_cov_trace_pc()
-# callback into middle of per-cpu data enabling code. Thus the callback observed
-# inconsistent state and crashed. We are interested mostly in syscall coverage,
-# so boot code is not interesting anyway.
-KCOV_INSTRUMENT := n
-
# If you want to preset the SVGA mode, uncomment the next line and
# set SVGA_MODE to whatever number you want.
# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
@@ -48,7 +35,6 @@ setup-y += video-vesa.o
setup-y += video-bios.o
targets += $(setup-y)
-hostprogs := tools/build
hostprogs += mkcpustr
HOST_EXTRACFLAGS += -I$(srctree)/tools/include \
@@ -67,19 +53,15 @@ targets += cpustr.h
KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP
KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
-KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
-GCOV_PROFILE := n
-UBSAN_SANITIZE := n
+KBUILD_CFLAGS += $(CONFIG_CC_IMPLICIT_FALLTHROUGH)
$(obj)/bzImage: asflags-y := $(SVGA_MODE)
quiet_cmd_image = BUILD $@
-silent_redirect_image = >/dev/null
-cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
- $(obj)/zoffset.h $@ $($(quiet)redirect_image)
+ cmd_image = cp $< $@; truncate -s %4K $@; cat $(obj)/vmlinux.bin >>$@
-$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
+$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin FORCE
$(call if_changed,image)
@$(kecho) 'Kernel: $@ is ready' ' (#'$(or $(KBUILD_BUILD_VERSION),`cat .version`)')'
@@ -129,7 +111,7 @@ targets += mtools.conf
# genimage.sh requires bash, but it also has a bunch of other
# external dependencies.
quiet_cmd_genimage = GENIMAGE $3
-cmd_genimage = $(BASH) $(srctree)/$(src)/genimage.sh $2 $3 $(obj)/bzImage \
+ cmd_genimage = $(BASH) $(src)/genimage.sh $2 $3 $(obj)/bzImage \
$(obj)/mtools.conf '$(FDARGS)' $(FDINITRD)
PHONY += bzdisk fdimage fdimage144 fdimage288 hdimage isoimage