libext2fs.o fs/fat/libfat.o fs/fdos/libfdos.o fs/jffs2/libjffs2.o fs/reiserfs/libreiserfs.o fs/ubifs/libubifs.o fs/yaffs2/libyaffs2.o lib/libfdt/libfdt.o lib/libgeneric.o lib/lzma/liblzma.o lib/lzo/liblzo.o net/libnet.o post/libpost.o board/samsung/smdk2410/libsmdk2410.o --end-group /home/bsc/u-boot-2010.12/arch/arm/lib/eabi_compat.o -L /usr/local/arm/4.3.2/bin/../lib/gcc/arm-none-linux-gnueabi/4.3.2/armv4t -lgcc -Map u-boot.map -o u-boot
make: *** [u-boot] Error 139
查看bootm.c:代码，发现里面明明存在get_sp（）函数，支持在一些宏定义条件下。可能是这些宏未定义导致该函数未编译。查到网上一个patch：
[PATCH] arm: get_sp() should always be compiled
gmail.com>
2010-11-01 07:55:27 GMT
From: Po-Yu Chuang faraday-tech.com>
get_sp() was incorrectly excluded if none of
CONFIG_SETUP_MEMORY_TAGS
CONFIG_CMDLINE_TAG
CONFIG_INITRD_TAG
CONFIG_SERIAL_TAG
CONFIG_REVISION_TAG
were defined.
Signed-off-by: Po-Yu Chuang faraday-tech.com>
---
arch/arm/lib/bootm.c | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index a1649ee..7734953 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -327,12 +327,12 @@ void setup_revision_tag(struct tag **in_params)
}
#endif /* CONFIG_REVISION_TAG */
-
static void setup_end_tag (bd_t *bd)
{
params->hdr.tag = ATAG_NONE;
params->hdr.size = 0;
}
+#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
static ulong get_sp(void)
{
@@ -341,5 +341,3 @@ static ulong get_sp(void)
asm("mov %0, sp" : "=r"(ret) : );
return ret;
}
-
-#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
修改完毕后，再次编译通过（从编译过程来看，新版本的BUG还不少）。