【问题】
折腾：
【记录】Ubuntu下用arm-xscale-linux-gnueabi交叉编译uboot
编译最后出错：
UNDEF_SYM=`arm-xscale-linux-gnueabi-objdump -x lib_generic/libgeneric.a board/whgs/libwhgs.a cpu/pxa/libpxa.a lib_arm/libarm.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a |sed -n -e 's/.*\(__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\ arm-xscale-linux-gnueabi-ld -Bstatic -T /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/board/whgs/u-boot.lds -Ttext 0x5c010000 $UNDEF_SYM cpu/pxa/start.o \ --start-group lib_generic/libgeneric.a board/whgs/libwhgs.a cpu/pxa/libpxa.a lib_arm/libarm.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a --end-group -L /opt/crosscompile/xscale/gcc-4.6.0-glibc-2.9/bin/../lib/gcc/arm-xscale-linux-gnueabi/4.6.0 -lgcc \ -Map u-boot.map -o u-boot /opt/crosscompile/xscale/gcc-4.6.0-glibc-2.9/bin/../lib/gcc/arm-xscale-linux-gnueabi/4.6.0/libgcc.a(_dvmd_lnx.o): In function `__aeabi_ldiv0': /home/crifan/develop/crosstool-ng/crosstool-ng-1.18.0_build/.build/src/gcc-4.6.0/libgcc/../gcc/config/arm/lib1funcs.asm:1266: undefined reference to `raise' make: *** [u-boot] Error 1 crifan@ubuntu:u-boot-1.1.4-whgs$
即：
xxx/libgcc.a(_dvmd_lnx.o): In function `__aeabi_ldiv0′: |
如图：
【解决过程】
1.参考：
lib1asmfuncs.asm calls raise unconditionally
但是看不太懂。
2. 参考：
[Buildroot] undefined reference to `raise’ when linking with libgcc
遇到类似问题，但是没说怎么解决。
3.这里也看到讨论：
ibotlog2html for #crosstool-ng
但是还是不知道如何解决。
貌似需要重新build一个？？？
4.参考：
[Bug c/31798] New: lib1funcs.asm:1000: undefined reference to `raise’
那人是自己手动添加一个了空的raise()函数而使得可以正常编译了。
此处，暂不用这种方法。
5.参考其回复：
[Bug target/31798] lib1funcs.asm:1000: undefined reference to `raise’
说到了：当发生除于0才会出现除的函数，其中会去触发__div0函数
以及，说不是编译器的bug，而需要自己解决：
要么说动实现自己的_div0
要么重新用不同的配置重新去编译交叉编译器。
但是此处：
前者，不太会。
后者，很是麻烦。
所以都放弃。
6.参考：
Re: [nuttx] commit 4573 broke the calypso platform.
其自己解决了：
I fixed locally by linking to src/target/firmware/lib/lib1funcs.S in osmocombb — a/src/target/firmware/lib/lib1funcs.S +++ b/src/target/firmware/lib/lib1funcs.S @@ -323,6 +323,7 @@ ENTRY(__aeabi_idivmod) sub r1, r1, r3 mov pc, lr +ENTRY(__aeabi_ldiv0) Ldiv0: str lr, [sp, #-8]! @@ -332,3 +333,6 @@ Ldiv0: ENTRY(__div0) mov pc, lr + +ENTRY(__aeabi_unwind_cpp_pr0) And linking to it in Make.defs… |
但是还是不太想要这种方法。
7.参考：
build uClibc toolchains using Buildroot for GM812x
其是：
|
此处，也不太会弄。
8.然后看到了
commit 4573 broke the calypso platform
中也有类似的解决办法，但是还是觉得不好。
9.后来看到：
Source object XXX has EABI version 4, but target u-boot has EABI version 0
其中的几个人的解释，比较清楚：
U-Boot is not a GNU/Linux application. However, you’re using the GNU/Linux toolchain to compile it — so the libraries assume the presence of a GNU/Linux C library. In this case, the division routine wants to call "raise" to signal a division-by-zero exception. particular toolchains. |
和：
U-boot explicitly compiles its binaries for ARM with -mabi=apcs-gnu, not EABI, so linking to any EABI compiled libgcc will cause the same error message. I noticed that this question was about an very out-dated version of U-boot, namely 1.1.4, so that might be cause some troubles as well. So, use a proper compiler toolchain (not EABI, but surely a bare metal edition). Several options are possible, you can also use the ARM-ELDK from denx.de |
然后去试试后面给出的解决办法：
（1）修改Makefile，改为：
# Add GCC lib #PLATFORM_LIBS += -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
（2）再去修改：lib_generic/vsprintf.c
修改为：
#include <linux/string.h>
#include <linux/ctype.h>
#ifdef CFG_64BIT_VSPRINTF
#include <div64.h>
#endif
#include <common.h>
...
#define SPECIAL 32 /* 0x */
#define LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */
#if 0
#define do_div(n,base) ({ \
int __res; \
__res = ((unsigned long) n) % (unsigned) base; \
n = ((unsigned long) n) / (unsigned) base; \
__res; \
})
#endif
#ifdef CFG_64BIT_VSPRINTF
static char * number(char * str, long long num, int base, int size, int precision ,int type)
#else结果重新编译，则会导致更多的错误：
crifan@ubuntu:u-boot-1.1.4-whgs$ make clean find . -type f \ \( -name 'core' -o -name '*.bak' -o -name '*~' \ -o -name '*.o' -o -name '*.a' \) -print \ | xargs rm -f rm -f examples/hello_world examples/timer \ examples/eepro100_eeprom examples/sched \ examples/mem_to_mem_idma2intr examples/82559_eeprom \ examples/test_burst rm -f tools/img2srec tools/mkimage tools/envcrc tools/gen_eth_addr rm -f tools/mpc86x_clk tools/ncb rm -f tools/easylogo/easylogo tools/bmp_logo rm -f tools/gdb/astest tools/gdb/gdbcont tools/gdb/gdbsend rm -f tools/env/fw_printenv tools/env/fw_setenv rm -f board/cray/L1/bootscript.c board/cray/L1/bootscript.image rm -f board/trab/trab_fkt board/voiceblue/eeprom rm -f board/integratorap/u-boot.lds board/integratorcp/u-boot.lds crifan@ubuntu:u-boot-1.1.4-whgs$ make whgs_config Configuring for whgs board... crifan@ubuntu:u-boot-1.1.4-whgs$ make ... make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/common' UNDEF_SYM=`arm-xscale-linux-gnueabi-objdump -x lib_generic/libgeneric.a board/whgs/libwhgs.a cpu/pxa/libpxa.a lib_arm/libarm.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a |sed -n -e 's/.*\(__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\ arm-xscale-linux-gnueabi-ld -Bstatic -T /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/board/whgs/u-boot.lds -Ttext 0x5c010000 $UNDEF_SYM cpu/pxa/start.o \ --start-group lib_generic/libgeneric.a board/whgs/libwhgs.a cpu/pxa/libpxa.a lib_arm/libarm.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a --end-group \ -Map u-boot.map -o u-boot cpu/pxa/libpxa.a(interrupts.o): In function `udelay_masked': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/cpu/pxa/interrupts.c:197: undefined reference to `__aeabi_uidiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/cpu/pxa/interrupts.c:202: undefined reference to `__aeabi_uidiv' net/libnet.a(tftp.o): In function `TftpHandler': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/net/tftp.c:230: undefined reference to `__aeabi_uidivmod' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/net/tftp.c:232: undefined reference to `__aeabi_uidivmod' net/libnet.a(tftp.o): In function `TftpStart': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/net/tftp.c:372: undefined reference to `__aeabi_uidivmod' net/libnet.a(bootp.o): In function `BootpRequest': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/net/bootp.c:672: undefined reference to `__aeabi_uidiv' drivers/libdrivers.a(onenand_uboot.o): In function `flash_print_info': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers/onenand_uboot.c:65: undefined reference to `__aeabi_uidivmod' drivers/libdrivers.a(onenand_base.o): In function `onenand_command': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers/onenand_base.c:203: undefined reference to `__aeabi_lasr' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers/onenand_base.c:208: undefined reference to `__aeabi_lasr' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers/onenand_base.c:209: undefined reference to `__aeabi_lasr' drivers/libdrivers.a(onenand_base.o): In function `onenand_update_bufferram': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers/onenand_base.c:468: undefined reference to `__aeabi_lasr' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers/onenand_base.c:469: undefined reference to `__aeabi_lasr' drivers/libdrivers.a(onenand_base.o):/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers/onenand_base.c:439: more undefined references to `__aeabi_lasr' follow drivers/libdrivers.a(onenand_base.o): In function `onenand_probe': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers/onenand_base.c:1770: undefined reference to `__aeabi_uidiv' drivers/libdrivers.a(onenand_bbt.o): In function `onenand_isbad_bbt': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers/onenand_bbt.c:155: undefined reference to `__aeabi_lasr' common/libcommon.a(cmd_date.o): In function `mk_date': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/common/cmd_date.c:146: undefined reference to `__aeabi_idiv' common/libcommon.a(dlmalloc.o): In function `memalign': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/common/dlmalloc.c:2779: undefined reference to `__aeabi_uidivmod' common/libcommon.a(lists.o): In function `ExpandListSpace': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/common/lists.c:158: undefined reference to `__aeabi_idiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/common/lists.c:160: undefined reference to `__aeabi_idiv' lib_generic/libgeneric.a(display_options.o): In function `print_size': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/lib_generic/display_options.c:53: undefined reference to `__aeabi_uidiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/lib_generic/display_options.c:55: undefined reference to `__aeabi_uidiv' lib_generic/libgeneric.a(vsprintf.o): In function `number': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/lib_generic/vsprintf.c:162: undefined reference to `do_div' lib_generic/libgeneric.a(zlib.o): In function `adler32': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/lib_generic/zlib.c:2157: undefined reference to `__aeabi_uidivmod' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/lib_generic/zlib.c:2158: undefined reference to `__aeabi_uidivmod' lib_generic/libgeneric.a(zlib.o): In function `inflate': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/lib_generic/zlib.c:427: undefined reference to `__aeabi_uidivmod' rtc/librtc.a(date.o): In function `GregorianDay': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:61: undefined reference to `__aeabi_idiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:61: undefined reference to `__aeabi_idiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:70: undefined reference to `__aeabi_idivmod' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:70: undefined reference to `__aeabi_idivmod' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:82: undefined reference to `__aeabi_idivmod' rtc/librtc.a(date.o): In function `to_tm': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:90: undefined reference to `__aeabi_idiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:91: undefined reference to `__aeabi_idivmod' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:94: undefined reference to `__aeabi_idiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:95: undefined reference to `__aeabi_idivmod' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:95: undefined reference to `__aeabi_idiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:96: undefined reference to `__aeabi_idivmod' rtc/librtc.a(date.o): In function `mktime': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:149: undefined reference to `__aeabi_uidiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:149: undefined reference to `__aeabi_uidiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/date.c:149: undefined reference to `__aeabi_uidiv' rtc/librtc.a(pcf8563.o): In function `rtc_set': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:93: undefined reference to `__aeabi_idivmod' rtc/librtc.a(pcf8563.o): In function `bin2bcd': /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidivmod' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidivmod' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidivmod' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidivmod' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidivmod' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidivmod' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidiv' /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc/pcf8563.c:141: undefined reference to `__aeabi_uidivmod' make: *** [u-boot] Error 1 crifan@ubuntu:u-boot-1.1.4-whgs$
10.然后看到之前的一堆人的讨论：
Re: [arm-gnu] In Function __aeabi_ldiv0 : undefined reference to ‘raise’
Re: [arm-gnu] EABI version 5, but target u-boot has EABI version 0
结果是：
此处我用的交叉编译器是arm-xscale-linux-gnueabi，是EABI的
而uboot中对于arm则显式地要求
-mabi=apcs-gnu
即非EABI的。
结果就是：
我的交叉编译器版本太新，而uboot版本太老：1.1.4
所以出了问题。
如果是用来编译比较新的，尤其是最新的uboot，应该就可以了。
11.所以，先去恢复上述的修改再说。
12.然后再想办法，如何去添加自己的raise()或者__aeabi_ldiv0。
参考：
commit 4573 broke the calypso platform
去找到之前的crosstool-ng的编译的地方：
/home/crifan/develop/crosstool-ng/crosstool-ng-1.18.0_build/.build/src/gcc-4.6.0/libgcc/../gcc/config/arm/lib1funcs.asm
可以找到相关的代码的：
/* ------------------------------------------------------------------------ */
#ifdef L_dvmd_lnx
@ GNU/Linux division-by zero handler. Used in place of L_dvmd_tls
/* Constant taken from <asm/signal.h>. */
#define SIGFPE 8
#ifdef __ARM_EABI__
WEAK aeabi_idiv0
WEAK aeabi_ldiv0
ARM_FUNC_START aeabi_idiv0
ARM_FUNC_START aeabi_ldiv0
#else
ARM_FUNC_START div0
#endif
do_push {r1, lr}
mov r0, #SIGFPE
bl SYM(raise) __PLT__
RETLDM r1
#ifdef __ARM_EABI__
FUNC_END aeabi_ldiv0
FUNC_END aeabi_idiv0
#else
FUNC_END div0
#endif
#endif /* L_dvmd_lnx */但是也不方便改啊。
13.然后是找到了uboot-1.1.4中的，自己的一个.S汇编文件：
board/whgs/lowlevel_init.S
去编辑：
crifan@ubuntu:u-boot-1.1.4-whgs$ gedit arm_config.mk CVS/ include/ lib_nios2/ microblaze_config.mk README board/ disk/ lib_arm/ lib_ppc/ mips_config.mk rtc/ CHANGELOG doc/ lib_generic/ m68k_config.mk mkconfig tools/ common/ drivers/ lib_i386/ MAINTAINERS net/ u-boot.map config.mk dtt/ lib_m68k/ MAKEALL nios2_config.mk COPYING examples/ lib_microblaze/ Makefile nios_config.mk cpu/ fs/ lib_mips/ Makefile~ post/ CREDITS i386_config.mk lib_nios/ Makefile.orig ppc_config.mk crifan@ubuntu:u-boot-1.1.4-whgs$ gedit board/ Display all 197 possibilities? (y or n) crifan@ubuntu:u-boot-1.1.4-whgs$ gedit board/whgs/ config.mk ethernetselftest.h lowlevel_init.o old/ selftest.h whgs.c CVS/ ethernetselftest.o lowlevel_init.S phycore_pxa270.h selftest.o whgs.o .depend intel.h lowlevel_init.S.old pxavoltage.S smc91111.h ethernetselftest.c libwhgs.a Makefile selftest.c u-boot.lds crifan@ubuntu:u-boot-1.1.4-whgs$ gedit board/whgs/lowlevel_init.S
在文件的最后，添加上对应的raise函数：
@add empty raise() to fix (when use new EABI xscale cross compiler to) compile @error gcc/config/arm/lib1funcs.asm:1266: undefined reference to `raise' .globl raise raise: nop mov pc, lr
然后再去编译试试，看看能否消除此错误，果然消除此错误了：
crifan@ubuntu:u-boot-1.1.4-whgs$ make make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/tools' make[1]: `.depend' is up to date. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/tools' make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/post' make[1]: `.depend' is up to date. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/post' make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/post/cpu' make[1]: `.depend' is up to date. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/post/cpu' make -C tools all make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/tools' make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/tools' make -C post all make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/post' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/post' make -C post/cpu all make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/post/cpu' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/post/cpu' make -C `dirname lib_generic/libgeneric.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/lib_generic' make[1]: `libgeneric.a' is up to date. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/lib_generic' make -C `dirname board/whgs/libwhgs.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/board/whgs' arm-xscale-linux-gnueabi-gcc -M -g -Os -fno-strict-aliasing -fno-common -ffixed-r8 -D__KERNEL__ -DTEXT_BASE=0x5c010000 -I/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/include -fno-builtin -ffreestanding -nostdinc -isystem /opt/crosscompile/xscale/gcc-4.6.0-glibc-2.9/bin/../lib/gcc/arm-xscale-linux-gnueabi/4.6.0/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5 -mtune=xscale lowlevel_init.S whgs.c selftest.c ethernetselftest.c > .depend make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/board/whgs' make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/board/whgs' arm-xscale-linux-gnueabi-gcc -Wa,-gstabs -D__ASSEMBLY__ -g -Os -fno-strict-aliasing -fno-common -ffixed-r8 -D__KERNEL__ -DTEXT_BASE=0x5c010000 -I/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/include -fno-builtin -ffreestanding -nostdinc -isystem /opt/crosscompile/xscale/gcc-4.6.0-glibc-2.9/bin/../lib/gcc/arm-xscale-linux-gnueabi/4.6.0/include -pipe -DCONFIG_ARM -D__ARM__ -march=armv5 -mtune=xscale -c -o lowlevel_init.o /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/board/whgs/lowlevel_init.S arm-xscale-linux-gnueabi-ar crv libwhgs.a whgs.o selftest.o ethernetselftest.o lowlevel_init.o r - whgs.o r - selftest.o r - ethernetselftest.o r - lowlevel_init.o make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/board/whgs' make -C `dirname cpu/pxa/libpxa.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/cpu/pxa' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/cpu/pxa' make -C `dirname lib_arm/libarm.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/lib_arm' make[1]: `libarm.a' is up to date. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/lib_arm' make -C `dirname net/libnet.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/net' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/net' make -C `dirname disk/libdisk.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/disk' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/disk' make -C `dirname rtc/librtc.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/rtc' make -C `dirname dtt/libdtt.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/dtt' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/dtt' make -C `dirname drivers/libdrivers.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers' make -C `dirname drivers/sk98lin/libsk98lin.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers/sk98lin' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/drivers/sk98lin' make -C `dirname post/libpost.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/post' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/post' make -C `dirname post/cpu/libcpu.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/post/cpu' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/post/cpu' make -C `dirname common/libcommon.a` make[1]: Entering directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/common' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/common' UNDEF_SYM=`arm-xscale-linux-gnueabi-objdump -x lib_generic/libgeneric.a board/whgs/libwhgs.a cpu/pxa/libpxa.a lib_arm/libarm.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a |sed -n -e 's/.*\(__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\ arm-xscale-linux-gnueabi-ld -Bstatic -T /home/crifan/develop/crosscompile/wihart_gateway_6_0/old_project_lack_eclipse_project_file/BSP/Bootloader/u-boot-1.1.4-whgs/board/whgs/u-boot.lds -Ttext 0x5c010000 $UNDEF_SYM cpu/pxa/start.o \ --start-group lib_generic/libgeneric.a board/whgs/libwhgs.a cpu/pxa/libpxa.a lib_arm/libarm.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a --end-group -L /opt/crosscompile/xscale/gcc-4.6.0-glibc-2.9/bin/../lib/gcc/arm-xscale-linux-gnueabi/4.6.0 -lgcc \ -Map u-boot.map -o u-boot arm-xscale-linux-gnueabi-objcopy --gap-fill=0xff -O srec u-boot u-boot.srec arm-xscale-linux-gnueabi-objcopy --gap-fill=0xff -O binary u-boot u-boot.bin crifan@ubuntu:u-boot-1.1.4-whgs$
【总结】
此处，用交叉编译器arm-xscale-linux-gnueabi（gcc-4.6.0-glibc-2.9）去编译老版本的uboot（1.1.4）而出错：
gcc/config/arm/lib1funcs.asm:1266: undefined reference to `raise’
的原因是：
Uboot是个非GNU/Linux的程序，是个裸程序（bare-metal application）；
而交叉编译器arm-xscale-linux-gnueabi是GNU/Linux工具链，是可以正常编译Linux内核等东西的，
但是去编译非GNU/Linux的Uboot的话，就会出现：
当出现被0除的情况时，会调用__aeabi_ldiv0（即eabi版本的__div0），当在GNU/Linux系统中时，其会去触发系统的SIGFPE，进而调用到对应的raise(3)函数。
而此处，由于Uboot不是Linux类程序，没有对应的raise()函数，所以报错找不到。
解决办法是：
两种：
1.去用其他对应的配置（估计是用于指定是非GUN/Linux类程序的），重新编译一个新版本的交叉编译器，然后用新的非GNU/Linux的交叉编译器，去编译此旧版本的uboot，即可正常编译
2.修改自己的uboot，加上对应的（随便写个空的）__aeabi_ldiv0或raise函数即可。
此处选用第二种，具体做法：
此处的uboot是whgs的（即配置的时候用的是make whgs_config）
所以找到对应的汇编文件，即：
board/whgs/lowlevel_init.S
在文件最后，添加上
@add empty raise() to fix (when use new EABI xscale cross compiler to) compile @error gcc/config/arm/lib1funcs.asm:1266: undefined reference to `raise' .globl raise raise: nop mov pc, lr
然后重新编译，即可。
转载请注明：在路上 » 【已解决】uboot交叉编译出错：gcc/config/arm/lib1funcs.asm:1266: undefined reference to `raise’