diff options
| author | Alban Bedel <albeu@free.fr> | 2015-12-10 10:57:20 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2016-01-24 04:05:03 +0100 |
| commit | 25f66096ac0cbb8e757e6ce3f78665eedb946b17 (patch) | |
| tree | f53c4948a54b0f43b75233b4c5134ff0dc94d5b3 /arch/mips/boot | |
| parent | a7b43812ae5ec90afde8ed540b1a92405a54a519 (diff) | |
| download | lwn-25f66096ac0cbb8e757e6ce3f78665eedb946b17.tar.gz lwn-25f66096ac0cbb8e757e6ce3f78665eedb946b17.zip | |
MIPS: zboot: Avoid useless rebuilds
Add dummy.o to the targets list, and fill targets automatically from
$(vmlinuzobjs) to avoid having to maintain two lists.
When building with XZ compression copy ashldi3.c to the build
directory to use a different object file for the kernel and zboot.
Without this the same object file need to be build with different
flags which cause a rebuild at every run.
Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Cc: Alex Smith <alex.smith@imgtec.com>
Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11810/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/boot')
| -rw-r--r-- | arch/mips/boot/compressed/Makefile | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile index d5bdee115f22..e66b2c69c29c 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -29,8 +29,6 @@ KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \ -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS) -targets := head.o decompress.o string.o dbg.o uart-16550.o uart-alchemy.o - # decompressor objects (linked with vmlinuz) vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o @@ -40,9 +38,13 @@ vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o endif -ifdef CONFIG_KERNEL_XZ -vmlinuzobjs-y += $(obj)/../../lib/ashldi3.o -endif +vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o + +$(obj)/ashldi3.o: KBUILD_CFLAGS += -I$(srctree)/arch/mips/lib +$(obj)/ashldi3.c: $(srctree)/arch/mips/lib/ashldi3.c + $(call cmd,shipped) + +targets := $(notdir $(vmlinuzobjs-y)) targets += vmlinux.bin OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S @@ -60,7 +62,7 @@ targets += vmlinux.bin.z $(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE $(call if_changed,$(tool_y)) -targets += piggy.o +targets += piggy.o dummy.o OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \ --set-section-flags=.image=contents,alloc,load,readonly,data $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE |