[PATCH] simple/Makefile cleanup - step 1
Sam Ravnborg
sam at ravnborg.org
Fri Aug 15 05:34:41 EST 2003
Hi Tom.
Loom time ago I promised to take a look at the simple/Makefile.
I was reminded by the current thread.
The following is first step.
Use kbuild style assignment in simple/Makefile.
This results in a more readable Makefile.
Sam
===== arch/ppc/boot/simple/Makefile 1.19 vs edited =====
--- 1.19/arch/ppc/boot/simple/Makefile Wed Jul 2 02:01:18 2003
+++ edited/arch/ppc/boot/simple/Makefile Thu Aug 14 21:17:31 2003
@@ -22,7 +22,6 @@
# get_mem_size(), which is memory controller dependent. Add in the correct
# XXX_memory.o file for this to work, as well as editing the $(MISC) file.
-boot: zImage
boot := arch/ppc/boot
common := $(boot)/common
@@ -32,86 +31,90 @@
# Normally, we use the 'misc.c' file for decompress_kernel and
# whatnot. Sometimes we need to override this however.
-MISC := misc.o
-ifeq ($(CONFIG_IBM_OPENBIOS),y)
-ZIMAGE := zImage-TREE
-ZIMAGEINITRD := zImage.initrd-TREE
-END := treeboot
-TFTPIMAGE := /tftpboot/zImage.$(END)
-MISC := misc-embedded.o
-endif
-ifeq ($(CONFIG_EMBEDDEDBOOT),y)
-TFTPIMAGE := /tftpboot/zImage.embedded
-MISC := misc-embedded.o
-endif
-ifeq ($(CONFIG_EBONY),y)
-ZIMAGE := zImage-TREE
-ZIMAGEINITRD := zImage.initrd-TREE
-END := ebony
-ENTRYPOINT := 0x01000000
-TFTPIMAGE := /tftpboot/zImage.$(END)
-endif
-ifeq ($(CONFIG_EV64260),y)
-EXTRA := misc-ev64260.o
-TFTPIMAGE := /tftpboot/zImage.ev64260
-endif
-ifeq ($(CONFIG_GEMINI),y)
-ZIMAGE := zImage-STRIPELF
-ZIMAGEINITRD := zImage.initrd-STRIPELF
-END := gemini
-TFTPIMAGE := /tftpboot/zImage.$(END)
-endif
-ifeq ($(CONFIG_K2),y)
-EXTRA := legacy.o
-TFTPIMAGE := /tftpboot/zImage.k2
-endif
-# kbuild-2.4 'feature', only one of these will ever by 'y' at a time.
+misc-y := misc.o
+
+#
+# See arch/ppc/kconfig and arch/ppc/platforms/Kconfig
+# for definition of what platform each config option refer to.
+#----------------------------------------------------------------------------
+ zimage-$(CONFIG_IBM_OPENBIOS) := zImage-TREE
+zimageinitrd-$(CONFIG_IBM_OPENBIOS) := zImage.initrd-TREE
+ end-$(CONFIG_IBM_OPENBIOS) := treeboot
+ tftpimage-$(CONFIG_IBM_OPENBIOS) := /tftpboot/zImage.$(end-y)
+ misc-$(CONFIG_IBM_OPENBIOS) := misc-embedded.o
+
+ tftpimage-$(CONFIG_EMBEDDEDBOOT) := /tftpboot/zImage.embedded
+ misc-$(CONFIG_EMBEDDEDBOOT) := misc-embedded.o
+
+ zimage-$(CONFIG_EBONY) := zImage-TREE
+zimageinitrd-$(CONFIG_EBONY) := zImage.initrd-TREE
+ extra.o-$(CONFIG_EBONY) := direct.o
+ end-$(CONFIG_EBONY) := ebony
+ entrypoint-$(CONFIG_EBONY) := 0x01000000
+ tftpimage-$(CONFIG_EBONY) := /tftpboot/zImage.$(end-y)
+
+ extra.o-$(CONFIG_EV64260) := direct.o misc-ev64260.o
+ tftpimage-$(CONFIG_EV64260) := /tftpboot/zImage.ev64260
+
+ zimage-$(CONFIG_GEMINI) := zImage-STRIPELF
+zimageinitrd-$(CONFIG_GEMINI) := zImage.initrd-STRIPELF
+ end-$(CONFIG_GEMINI) := gemini
+ tftpimage-$(CONFIG_GEMINI) := /tftpboot/zImage.$(end-y)
+
+ extra.o-$(CONFIG_K2) := legacy.o
+ tftpimage-$(CONFIG_K2) := /tftpboot/zImage.k2
+
+# kconfig 'feature', only one of these will ever by 'y' at a time.
# The rest will be unset.
-ifeq ($(CONFIG_MCPN765)$(CONFIG_MVME5100)$(CONFIG_PRPMC750)$(CONFIG_PRPMC800)$(CONFIG_LOPEC)$(CONFIG_PPLUS),y)
-ZIMAGE := zImage-PPLUS
-ZIMAGEINITRD := zImage.initrd-PPLUS
-TFTPIMAGE := /tftpboot/zImage.pplus
-ZNETBOOT := zImage.pplus
-ZNETBOOTRD := zImage.initrd.pplus
-endif
-ifeq ($(CONFIG_PPLUS),y)
-EXTRA := legacy.o
-endif
-ifeq ($(CONFIG_PCORE)$(CONFIG_POWERPMC250),y)
-ZIMAGE := zImage-STRIPELF
-ZIMAGEINITRD := zImage.initrd-STRIPELF
-EXTRA := chrpmap.o
-END := pcore
-TFTPIMAGE := /tftpboot/zImage.$(END)
-endif
-ifeq ($(CONFIG_SANDPOINT),y)
-TFTPIMAGE := /tftpboot/zImage.sandpoint
-endif
-ifeq ($(CONFIG_SPRUCE),y)
-ZIMAGE := zImage-TREE
-ZIMAGEINITRD := zImage.initrd-TREE
-END := spruce
-ENTRYPOINT := 0x00800000
-MISC := misc-spruce.o
-TFTPIMAGE := /tftpboot/zImage.$(END)
-endif
-ifeq ($(CONFIG_SMP),y)
-TFTPIMAGE += .smp
-endif
-ifeq ($(CONFIG_REDWOOD_4),y)
+multi := $(CONFIG_MCPN765)$(CONFIG_MVME5100)$(CONFIG_PRPMC750) \
+$(CONFIG_PRPMC800)$(CONFIG_LOPEC)$(CONFIG_PPLUS)
+ zimage-$(multi) := zImage-PPLUS
+zimageinitrd-$(multi) := zImage.initrd-PPLUS
+ tftpimage-$(multi) := /tftpboot/zImage.pplus
+ znetboot-$(multi) := zImage.pplus
+ znetbootrd-$(multi) := zImage.initrd.pplus
+
+#Overrides previous assingment
+ extra.o-$(CONFIG_PPLUS) := legacy.o
+
+ zimage-$(CONFIG_PCORE) := zImage-STRIPELF
+zimageinitrd-$(CONFIG_PCORE) := zImage.initrd-STRIPELF
+ extra.o-$(CONFIG_PCORE) := chrpmap.o
+ end-$(CONFIG_PCORE) := pcore
+ tftpimage-$(CONFIG_PCORE) := /tftpboot/zImage.$(end-y)
+
+ zimage-$(CONFIG_POWERPMC250) := zImage-STRIPELF
+zimageinitrd-$(CONFIG_POWERPMC250) := zImage.initrd-STRIPELF
+ extra.o-$(CONFIG_POWERPMC250) := chrpmap.o
+ end-$(CONFIG_POWERPMC250) := pcore
+ tftpimage-$(CONFIG_POWERPMC250) := /tftpboot/zImage.$(end-y)
+
+ tftpimage-$(CONFIG_SANDPOINT) := /tftpboot/zImage.sandpoint
+
+ zimage-$(CONFIG_SPRUCE) := zImage-TREE
+zimageinitrd-$(CONFIG_SPRUCE) := zImage.initrd-TREE
+ end-$(CONFIG_SPRUCE) := spruce
+ entrypoint-$(CONFIG_SPRUCE) := 0x00800000
+ misc-$(CONFIG_SPRUCE) := misc-spruce.o
+ tftpimage-$(CONFIG_SPRUCE) := /tftpboot/zImage.$(end-y)
+
+
+# tftp image is prefixed with .smp if compiled for SMP
+tftpimage-$(CONFIG_SMP) += .smp
+
# This is a treeboot that needs init functions until the
# boot rom is sorted out (i.e. this is short lived)
-EXTRA_AFLAGS := -Wa,-m405
-EXTRA := rw4/rw4_init.o rw4/rw4_init_brd.o
-endif
+extra-aflags-$(CONFIG_REDWOOD_4) := -Wa,-m405
+extra.o-$(CONFIG_REDWOOD_4) := rw4/rw4_init.o rw4/rw4_init_brd.o
+EXTRA_AFLAGS := $(extra-aflags-y)
# Linker args. This specifies where the image will be run at.
-LD_ARGS = -T $(boot)/ld.script \
- -Ttext $(CONFIG_BOOT_LOAD) -Bstatic
+LD_ARGS := -T $(boot)/ld.script \
+ -Ttext $(CONFIG_BOOT_LOAD) -Bstatic
OBJCOPY_ARGS := -O elf32-powerpc
# head.o and relocate.o must be at the start.
-boot-y := head.o relocate.o $(EXTRA) $(MISC)
+boot-y := head.o relocate.o $(extra.o-y) $(misc-y)
boot-$(CONFIG_40x) += embed_config.o
boot-$(CONFIG_8xx) += embed_config.o
boot-$(CONFIG_8260) += embed_config.o
@@ -160,40 +163,40 @@
-R .stabstr -R .sysmap
# Sort-of dummy rules, that let us format the image we want.
-zImage: $(images)/$(ZIMAGE) $(obj)/zvmlinux
+zImage: $(images)/$(zimage-y) $(obj)/zvmlinux
cp -f $(obj)/zvmlinux $(images)/zImage.elf
rm -f $(obj)/zvmlinux
-zImage.initrd: $(images)/$(ZIMAGEINITRD) $(obj)/zvmlinux.initrd
+zImage.initrd: $(images)/$(zimageinitrd-y) $(obj)/zvmlinux.initrd
cp -f $(obj)/zvmlinux.initrd $(images)/zImage.initrd.elf
rm -f $(obj)/zvmlinux.initrd
znetboot: zImage
ifneq ($(ZNETBOOT),)
- cp $(images)/$(ZNETBOOT) $(TFTPIMAGE)
+ cp $(images)/$(ZNETBOOT) $(tftpimage-y)
else
- cp $(images)/zImage.* $(TFTPIMAGE)
+ cp $(images)/zImage.* $(tftpimage-y)
endif
znetboot.initrd: zImage.initrd
-ifneq ($(ZNETBOOTRD),)
- cp $(images)/$(ZNETBOOTRD) $(TFTPIMAGE)
+ifneq ($(znetbootrd-y),)
+ cp $(images)/$(znetbootrd-y) $(tftpimage-y)
else
- cp $(images)/zImage.* $(TFTPIMAGE)
+ cp $(images)/zImage.* $(tftpimage-y)
endif
$(images)/zImage-STRIPELF: $(obj)/zvmlinux
- dd if=$(obj)/zvmlinux of=$(images)/zImage.$(END) skip=64 bs=1k
+ dd if=$(obj)/zvmlinux of=$(images)/zImage.$(end-y) skip=64 bs=1k
$(images)/zImage.initrd-STRIPELF: $(obj)/zvmlinux.initrd
- dd if=$(obj)/zvmlinux.initrd of=$(images)/zImage.initrd.$(END) \
+ dd if=$(obj)/zvmlinux.initrd of=$(images)/zImage.initrd.$(end-y) \
skip=64 bs=1k
$(images)/zImage-TREE: $(obj)/zvmlinux $(MKTREE)
- $(MKTREE) $(obj)/zvmlinux $(images)/zImage.$(END) $(ENTRYPOINT)
+ $(MKTREE) $(obj)/zvmlinux $(images)/zImage.$(end-y) $(ENTRYPOINT)
$(images)/zImage.initrd-TREE: $(obj)/zvmlinux.initrd $(MKTREE)
- $(MKTREE) $(obj)/zvmlinux.initrd $(images)/zImage.initrd.$(END) \
+ $(MKTREE) $(obj)/zvmlinux.initrd $(images)/zImage.initrd.$(end-y) \
$(ENTRYPOINT)
$(images)/zImage-PPLUS: $(obj)/zvmlinux $(MKPREP) $(MKBUGBOOT)
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