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gzip/zlib: make features optional 

If you really want to slim down U-Boot and you would rather use a higher
compression scheme (like LZMA), it'd be nice to disable gzip/zlib since
these code bases take up a significant amount of space.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2010-01-21 19:30:36 -05:00 committed by Wolfgang Denk
parent 8edcde5e4e
commit 44431cabbb
3 changed files with 7 additions and 2 deletions
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2
common/cmd_bootm.c
View File

@ -352,6 +352,7 @@ static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
*load_end = load + image_len;
puts("OK\n");
break;
#ifdef CONFIG_GZIP
case IH_COMP_GZIP:
printf (" Uncompressing %s ... ", type_name);
if (gunzip ((void *)load, unc_len,
@ -365,6 +366,7 @@ static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
*load_end = load + image_len;
break;
#endif /* CONFIG_GZIP */
#ifdef CONFIG_BZIP2
case IH_COMP_BZIP2:
printf (" Uncompressing %s ... ", type_name);

3
include/config_defaults.h
View File

@ -14,4 +14,7 @@
#define CONFIG_BOOTM_NETBSD 1
#define CONFIG_BOOTM_RTEMS 1
#define CONFIG_GZIP 1
#define CONFIG_ZLIB 1
#endif

4
lib_generic/Makefile
View File

@ -37,7 +37,7 @@ COBJS-y += crc32.o
COBJS-y += ctype.o
COBJS-y += display_options.o
COBJS-y += div64.o
COBJS-y += gunzip.o
COBJS-$(CONFIG_GZIP) += gunzip.o
COBJS-$(CONFIG_LMB) += lmb.o
COBJS-y += ldiv.o
COBJS-$(CONFIG_MD5) += md5.o
@ -48,7 +48,7 @@ COBJS-y += string.o
COBJS-y += strmhz.o
COBJS-y += time.o
COBJS-y += vsprintf.o
COBJS-y += zlib.o
COBJS-$(CONFIG_ZLIB) += zlib.o
COBJS-$(CONFIG_RBTREE) += rbtree.o
COBJS := $(COBJS-y)