all: $(obj)/zImage
+compress-$(CONFIG_KERNEL_GZIP) := CONFIG_KERNEL_GZIP
+compress-$(CONFIG_KERNEL_XZ) := CONFIG_KERNEL_XZ
+
BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -Os -msoft-float -pipe \
-fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
- -isystem $(shell $(CROSS32CC) -print-file-name=include)
+ -isystem $(shell $(CROSS32CC) -print-file-name=include) \
+ -D$(compress-y)
+
ifdef CONFIG_PPC64_BOOT_WRAPPER
BOOTCFLAGS += -m64
endif
$(obj)/treeboot-akebono.o: BOOTCFLAGS += -mcpu=405
$(obj)/virtex405-head.o: BOOTAFLAGS += -mcpu=405
+# The pre-boot decompressors pull in a lot of kernel headers and other source
+# files. This creates a bit of a dependency headache since we need to copy
+# these files into the build dir, fix up any includes and ensure that dependent
+# files are copied in the right order.
+
+# these need to be seperate variables because they are copied out of different
+# directories in the kernel tree. Sure you COULd merge them, but it's a
+# cure-is-worse-than-disease situation.
+zlib-decomp-$(CONFIG_KERNEL_GZIP) := decompress_inflate.c
+zlib-$(CONFIG_KERNEL_GZIP) := inffast.c inflate.c inftrees.c
+zlibheader-$(CONFIG_KERNEL_GZIP) := inffast.h inffixed.h inflate.h inftrees.h infutil.h
+zliblinuxheader-$(CONFIG_KERNEL_GZIP) := zlib.h zconf.h zutil.h
-zlib := inffast.c inflate.c inftrees.c
-zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h
-zliblinuxheader := zlib.h zconf.h zutil.h
+$(addprefix $(obj)/, decompress.o): \
+ $(addprefix $(obj)/,$(zlib-decomp-y))
-$(addprefix $(obj)/,$(zlib) cuboot-c2k.o gunzip_util.o main.o): \
- $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
+$(addprefix $(obj)/, $(zlib-decomp-y)): \
+ $(addprefix $(obj)/,$(zliblinuxheader-y)) \
+ $(addprefix $(obj)/,$(zlibheader-y)) \
+ $(addprefix $(obj)/,$(zlib-y))
+
+$(addprefix $(obj)/,$(zlib-y)): \
+ $(addprefix $(obj)/,$(zliblinuxheader-y)) \
+ $(addprefix $(obj)/,$(zlibheader-y))
libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
libfdtheader := fdt.h libfdt.h libfdt_internal.h
$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o opal.o): \
$(addprefix $(obj)/,$(libfdtheader))
-src-wlib-y := string.S crt0.S crtsavres.S stdio.c main.c \
+src-wlib-y := string.S crt0.S crtsavres.S stdio.c decompress.c main.c \
$(libfdt) libfdt-wrapper.c \
ns16550.c serial.c simple_alloc.c div64.S util.S \
- gunzip_util.c elf_util.c $(zlib) devtree.c stdlib.c \
+ elf_util.c $(zlib-y) devtree.c stdlib.c \
oflib.c ofconsole.c cuboot.c mpsc.c cpm-serial.c \
uartlite.c mpc52xx-psc.c opal.c opal-calls.S
src-wlib-$(CONFIG_40x) += 4xx.c planetcore.c
obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat))))
obj-plat: $(libfdt)
-quiet_cmd_copy_zlib = COPY $@
- cmd_copy_zlib = sed "s@__used@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
+quiet_cmd_copy_kern_src = COPY $@
+ cmd_copy_kern_src = sed -f $(srctree)/arch/powerpc/boot/fixup-headers.sed $< > $@
-quiet_cmd_copy_zlibheader = COPY $@
- cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
-# stddef.h for NULL
-quiet_cmd_copy_zliblinuxheader = COPY $@
- cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
+$(addprefix $(obj)/,$(zlib-y)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
+ $(call cmd,copy_kern_src)
-$(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
- $(call cmd,copy_zlib)
+$(addprefix $(obj)/,$(zlibheader-y)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
+ $(call cmd,copy_kern_src)
-$(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
- $(call cmd,copy_zlibheader)
+$(addprefix $(obj)/,$(zliblinuxheader-y)): $(obj)/%: $(srctree)/include/linux/%
+ $(call cmd,copy_kern_src)
-$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
- $(call cmd,copy_zliblinuxheader)
+$(addprefix $(obj)/,$(zlib-decomp-y)): $(obj)/%: $(srctree)/lib/%
+ $(call cmd,copy_kern_src)
quiet_cmd_copy_libfdt = COPY $@
cmd_copy_libfdt = cp $< $@
$(call cmd,copy_libfdt)
$(obj)/empty.c:
- @touch $@
+ $(Q)touch $@
$(obj)/zImage.lds: $(obj)/%: $(srctree)/$(src)/%.S
$(CROSS32CC) $(cpp_flags) -E -Wp,-MD,$(depfile) -P -Upowerpc \
-D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
$(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds : $(obj)/%: $(srctree)/$(src)/%.S
- @cp $< $@
+ $(Q)cp $< $@
-clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
- $(libfdt) $(libfdtheader) \
+clean-files := $(zlib-) $(zlibheader-) $(zliblinuxheader-) \
+ $(zlib-decomp-) $(libfdt) $(libfdtheader) \
empty.c zImage.coff.lds zImage.ps3.lds zImage.lds
quiet_cmd_bootcc = BOOTCC $@
endif
endif
+compressor-$(CONFIG_KERNEL_GZIP) := gz
+compressor-$(CONFIG_KERNEL_XZ) := xz
+
# args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
quiet_cmd_wrap = WRAP $@
- cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
- $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux
+ cmd_wrap =$(CONFIG_SHELL) $(wrapper) -Z $(compressor-y) -c -o $@ -p $2 \
+ $(CROSSWRAP) $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) \
+ vmlinux
image-$(CONFIG_PPC_PSERIES) += zImage.pseries
image-$(CONFIG_PPC_POWERNV) += zImage.pseries
endif
$(obj)/zImage: $(addprefix $(obj)/, $(image-y))
- @rm -f $@; ln $< $@
+ $(Q)rm -f $@; ln $< $@
$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y))
- @rm -f $@; ln $< $@
+ $(Q)rm -f $@; ln $< $@
# Only install the vmlinux
install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
zImage.maple simpleImage.* otheros.bld *.dtb
# clean up files cached by wrapper
-clean-kernel := vmlinux.strip vmlinux.bin
-clean-kernel += $(addsuffix .gz,$(clean-kernel))
+clean-kernel-base := vmlinux.strip vmlinux.bin
+clean-kernel := $(addsuffix .gz,$(clean-kernel-base))
+clean-kernel += $(addsuffix .xz,$(clean-kernel-base))
# If not absolute clean-files are relative to $(obj).
clean-files += $(addprefix $(objtree)/, $(clean-kernel))
projects / cascardo / linux.git / blobdiff