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| author | Wu Zhangjin <wuzhangjin@gmail.com> | 2010-12-25 23:11:49 +0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-04-02 13:54:25 +0200 |
| commit | 7ae7ef3ffdd62454a1c0e6b69ebc7a14b523f0cc (patch) | |
| tree | 288abc6246a15dc556e8d1dafb0d46e3144461cc /arch | |
| parent | 160f14312b0b7d35759535b1f60be79247b263c4 (diff) | |
| download | lwn-7ae7ef3ffdd62454a1c0e6b69ebc7a14b523f0cc.tar.gz lwn-7ae7ef3ffdd62454a1c0e6b69ebc7a14b523f0cc.zip | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/boot/compressed/Makefile | 3 | ||||
| -rw-r--r-- | 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 82d0b131a3db..dc91bde10d62 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -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 diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c index 31903cf9709d..54831069a206 100644 --- a/arch/mips/boot/compressed/decompress.c +++ b/arch/mips/boot/compressed/decompress.c @@ -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) { |