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MIPS: Reduce kernel image size for !CONFIG_DEBUG_ZBOOT 

!CONFIG_DEBUG_ZBOOT doesn't need puts() and puthex(), remove them and
the corrospindig strings for !CONFIG_DEBUG_ZBOOT, as a result, it saves
about 1280 bytes.

[ralf@linux-mips.org: Resolved reject.]

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/1898/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Wu Zhangjin 2010-12-25 23:11:49 +08:00 committed by Ralf Baechle
parent 160f14312b
commit 7ae7ef3ffd
2 changed files with 7 additions and 1 deletions
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3
arch/mips/boot/compressed/Makefile
View File

@ -32,9 +32,10 @@ KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
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 $(obj)/dbg.o
vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o
ifdef CONFIG_DEBUG_ZBOOT
vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/dbg.o
vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o
endif

5
arch/mips/boot/compressed/decompress.c
View File

@ -28,8 +28,13 @@ 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)
{