Use the new x86 setup code for i386
This patch hooks the new x86 setup code into the Makefile machinery. It
also adapts boot/tools/build.c to a two-file (as opposed to three-file)
universe, and simplifies it substantially.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/i386/boot/Makefile b/arch/i386/boot/Makefile
index bfbc320..08678a0a 100644
--- a/arch/i386/boot/Makefile
+++ b/arch/i386/boot/Makefile
@@ -25,27 +25,56 @@
#RAMDISK := -DRAMDISK=512
-targets := vmlinux.bin bootsect bootsect.o \
- setup setup.o zImage bzImage
+targets := vmlinux.bin setup.bin setup.elf zImage bzImage
subdir- := compressed
+setup-y += a20.o apm.o cmdline.o copy.o cpu.o cpucheck.o edd.o
+setup-y += header.o main.o mca.o memory.o pm.o pmjump.o
+setup-y += printf.o string.o tty.o video.o version.o voyager.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.
+setup-y += video-vga.o
+setup-y += video-vesa.o
+setup-y += video-bios.o
+
hostprogs-y := tools/build
HOSTCFLAGS_build.o := $(LINUXINCLUDE)
# ---------------------------------------------------------------------------
+# 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.
+cflags-i386 :=
+cflags-x86_64 := -m32
+CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
+ $(cflags-$(ARCH)) \
+ -Wall -Wstrict-prototypes \
+ -march=i386 -mregparm=3 \
+ -include $(srctree)/$(src)/code16gcc.h \
+ -fno-strict-aliasing -fomit-frame-pointer \
+ $(call cc-option, -ffreestanding) \
+ $(call cc-option, -fno-toplevel-reorder,\
+ $(call cc-option, -fno-unit-at-a-time)) \
+ $(call cc-option, -fno-stack-protector) \
+ $(call cc-option, -mpreferred-stack-boundary=2)
+AFLAGS := $(CFLAGS) -D__ASSEMBLY__
+
$(obj)/zImage: IMAGE_OFFSET := 0x1000
$(obj)/zImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK)
$(obj)/bzImage: IMAGE_OFFSET := 0x100000
+$(obj)/bzImage: EXTRA_CFLAGS := -D__BIG_KERNEL__
$(obj)/bzImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
$(obj)/bzImage: BUILDFLAGS := -b
quiet_cmd_image = BUILD $@
-cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/bootsect $(obj)/setup \
+cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \
$(obj)/vmlinux.bin $(ROOT_DEV) > $@
-$(obj)/zImage $(obj)/bzImage: $(obj)/bootsect $(obj)/setup \
+$(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \
$(obj)/vmlinux.bin $(obj)/tools/build FORCE
$(call if_changed,image)
@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
@@ -53,12 +82,17 @@
$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
$(call if_changed,objcopy)
-LDFLAGS_bootsect := -Ttext 0x0 -s --oformat binary
-LDFLAGS_setup := -Ttext 0x0 -s --oformat binary -e begtext
+SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
-$(obj)/setup $(obj)/bootsect: %: %.o FORCE
+LDFLAGS_setup.elf := -T
+$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
$(call if_changed,ld)
+OBJCOPYFLAGS_setup.bin := -O binary
+
+$(obj)/setup.bin: $(obj)/setup.elf FORCE
+ $(call if_changed,objcopy)
+
$(obj)/compressed/vmlinux: FORCE
$(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@