On Sat, Dec 25, 2010 at 11:11 PM, Wu Zhangjin <wuzhangjin@xxxxxxxxx> wrote:
> !CONFIG_DEBUG_ZBOOT doesn't need puts() and puthex(), remove them and
> the according strings for !CONFIG_DEBUG_ZBOOT, as a result, it saves
^^^^^ --> corresponding
> about 1280 bytes.
>
> Signed-off-by: Wu Zhangjin <wuzhangjin@xxxxxxxxx>
> ---
> arch/mips/boot/compressed/Makefile | 3 ++-
> arch/mips/boot/compressed/decompress.c | 5 +++++
> 2 files changed, 7 insertions(+), 1 deletions(-)
>
> diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
> index 5042d51..aab6d7f 100644
> --- a/arch/mips/boot/compressed/Makefile
> +++ b/arch/mips/boot/compressed/Makefile
> @@ -28,9 +28,10 @@ KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
> targets := head.o decompress.o dbg.o uart-16550.o uart-alchemy.o
>
> # decompressor objects (linked with vmlinuz)
> -vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o
> +vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o
>
> ifdef CONFIG_DEBUG_ZBOOT
> +vmlinuzobjs-y += $(obj)/dbg.o
> vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
> vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o
> endif
> diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c
> index 5cad0fa..c9cbff5 100644
> --- a/arch/mips/boot/compressed/decompress.c
> +++ b/arch/mips/boot/compressed/decompress.c
> @@ -27,8 +27,13 @@ unsigned long free_mem_end_ptr;
> extern unsigned char __image_begin, __image_end;
>
> /* debug interfaces */
> +#ifdef CONFIG_DEBUG_ZBOOT
> extern void puts(const char *s);
> extern void puthex(unsigned long long val);
> +#else
> +#define puts(s) do {} while (0)
> +#define puthex(val) do {} while (0)
> +#endif
>
> void error(char *x)
> {
> --
> 1.7.1
>
>
