From 44431cabbb66e81a2d77642b6f7d39c6230ea4ba Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Thu, 21 Jan 2010 19:30:36 -0500
Subject: [PATCH] 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>
---
common/cmd_bootm.c | 2 ++
include/config_defaults.h | 3 +++
lib_generic/Makefile | 4 ++--
3 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index f28e88f340f..23ab0c4aaea 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -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);
diff --git a/include/config_defaults.h b/include/config_defaults.h
index 08b6edec4ed..0337163c2a2 100644
--- a/include/config_defaults.h
+++ b/include/config_defaults.h
@@ -14,4 +14,7 @@
#define CONFIG_BOOTM_NETBSD 1
#define CONFIG_BOOTM_RTEMS 1
+#define CONFIG_GZIP 1
+#define CONFIG_ZLIB 1
+
#endif
diff --git a/lib_generic/Makefile b/lib_generic/Makefile
index 4e4496a552f..c45f07ca125 100644
--- a/lib_generic/Makefile
+++ b/lib_generic/Makefile
@@ -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)
--
GitLab