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Masahiro Yamada 7f7f6f7ad6 Makefile: remove redundant tool coverage variables

Now Kbuild provides reasonable defaults for objtool, sanitizers, and
profilers.

Remove redundant variables.

Note:

This commit changes the coverage for some objects:

  - include arch/mips/vdso/vdso-image.o into UBSAN, GCOV, KCOV
  - include arch/sparc/vdso/vdso-image-*.o into UBSAN
  - include arch/sparc/vdso/vma.o into UBSAN
  - include arch/x86/entry/vdso/extable.o into KASAN, KCSAN, UBSAN, GCOV, KCOV
  - include arch/x86/entry/vdso/vdso-image-*.o into KASAN, KCSAN, UBSAN, GCOV, KCOV
  - include arch/x86/entry/vdso/vdso32-setup.o into KASAN, KCSAN, UBSAN, GCOV, KCOV
  - include arch/x86/entry/vdso/vma.o into GCOV, KCOV
  - include arch/x86/um/vdso/vma.o into KASAN, GCOV, KCOV

I believe these are positive effects because all of them are kernel
space objects.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Roberto Sassu <roberto.sassu@huawei.com>

2024-05-14 23:35:48 +09:00

2.1 KiB

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arch/x86/realmode/Makefile

This file is subject to the terms and conditions of the GNU General Public

License. See the file "COPYING" in the main directory of this archive

for more details.

always-y := realmode.bin realmode.relocs

wakeup-objs := wakeup_asm.o wakemain.o video-mode.o wakeup-objs += copy.o bioscall.o regs.o

The link order of the video-*.o modules can matter. In particular,

video-vga.o must be listed first, followed by video-vesa.o.

Hardware-specific drivers should follow in the order they should be

probed, and video-bios.o should typically be last.

wakeup-objs += video-vga.o wakeup-objs += video-vesa.o wakeup-objs += video-bios.o

realmode-y += header.o realmode-y += trampoline_$(BITS).o realmode-y += stack.o realmode-y += reboot.o realmode-$(CONFIG_ACPI_SLEEP) += $(wakeup-objs)

targets += $(realmode-y)

REALMODE_OBJS = $(addprefix $(obj)/,$(realmode-y))

sed-pasyms := -n -r -e 's/^([0-9a-fA-F]+) [ABCDGRSTVW] (.+)$$/pa_\2 = \2;/p'

quiet_cmd_pasyms = PASYMS $@ cmd_pasyms = $(NM) $(real-prereqs) | sed $(sed-pasyms) | sort | uniq > $@

targets += pasyms.h $(obj)/pasyms.h: $(REALMODE_OBJS) FORCE $(call if_changed,pasyms)

targets += realmode.lds $(obj)/realmode.lds: $(obj)/pasyms.h

LDFLAGS_realmode.elf := -m elf_i386 --emit-relocs -T CPPFLAGS_realmode.lds += -P -C -I$(objtree)/$(obj)

targets += realmode.elf $(obj)/realmode.elf: $(obj)/realmode.lds $(REALMODE_OBJS) FORCE $(call if_changed,ld)

OBJCOPYFLAGS_realmode.bin := -O binary

targets += realmode.bin $(obj)/realmode.bin: $(obj)/realmode.elf $(obj)/realmode.relocs FORCE $(call if_changed,objcopy)

quiet_cmd_relocs = RELOCS $@ cmd_relocs = arch/x86/tools/relocs --realmode $< > $@

targets += realmode.relocs $(obj)/realmode.relocs: $(obj)/realmode.elf FORCE $(call if_changed,relocs)

---------------------------------------------------------------------------

KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP -D_WAKEUP
-I$(srctree)/arch/x86/boot KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ KBUILD_CFLAGS += -fno-asynchronous-unwind-tables

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