[PATCH] x86: fix rebuild with EFI_STUB enabled

From: Jan Beulich
Date: Wed Apr 03 2013 - 10:46:56 EST


eboot.o and efi_stub_$(BITS).o didn't get added to "targets", and hence
their .cmd files don't get included by the build machinery, leading to
the files always getting rebuilt.

Rather than adding the two files individually, take the opportunity and
add $(VMLINUX_OBJS) to "targets" instead, thus allowing the assignment
at the top of the file to be shrunk quite a bit.

At the same time, remove a pointless flags override line - the variable
assigned to was misspelled anyway, and the options added are
meaningless for assembly sources.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Cc: Matthew Garrett <mjg@xxxxxxxxxx>
Cc: Matt Fleming <matt.fleming@xxxxxxxxx>
---
arch/x86/boot/compressed/Makefile | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

--- 3.9-rc5/arch/x86/boot/compressed/Makefile
+++ 3.9-rc5-x86-EFI-stub-rebuild/arch/x86/boot/compressed/Makefile
@@ -4,7 +4,7 @@
# create a compressed vmlinux image from the original vmlinux
#

-targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo head_$(BITS).o misc.o string.o cmdline.o early_serial_console.o piggy.o
+targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo

KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
@@ -29,7 +29,6 @@ VMLINUX_OBJS = $(obj)/vmlinux.lds $(obj)
$(obj)/piggy.o

$(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone
-$(obj)/efi_stub_$(BITS).o: KBUILD_CLFAGS += -fshort-wchar -mno-red-zone

ifeq ($(CONFIG_EFI_STUB), y)
VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o
@@ -43,7 +42,7 @@ OBJCOPYFLAGS_vmlinux.bin := -R .comment
$(obj)/vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)

-targets += vmlinux.bin.all vmlinux.relocs
+targets += $(patsubst $(obj)/%,%,$(VMLINUX_OBJS)) vmlinux.bin.all vmlinux.relocs

CMD_RELOCS = arch/x86/tools/relocs
quiet_cmd_relocs = RELOCS $@



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