vxworks解决64位的除法或者发生 undefined reference to `__udivsi3'的错误

来源：互联网发布：linux 将多个文件压缩编辑：程序博客网时间：2024/05/16 05:54

vxworks解决64位的除法或者发生 undefined reference to `__udivsi3’的错误的解决办法

例如在链接中有时候会发现上述错误，无论vxworks还是linux其实都是一样

E:/WindRiver6.8/vxworks-6./target/config/***/uboot_lib/arch/arm/cpu/armv7/iproc/ddr_init.c:241: undefined reference to `__udivsi3’；

你根据代码根本无法查到该函数甚至展开后也无法发现错误原因；
其实这里涉及到一个32位编译操作64位除法的问题，由于移植在连接器中没有包含一些库导致，至于64位的除法并不需要我们去研究；可以通过下面的办法解决；

1：找到你以前在vxworks运行过的编译，找到日志，找到以-ld***开头的内容，我这里是ARM架构，所以是ldarm

ldarm -Map boot.map -EL -e romInit -Ttext f0000000 \
-o bootrom romInit.o boot_drv.a DecLzma.o bootInit.o version.o \
bootapp.Z.o \

–start-group -LE:/WindRiver6.8/vxworks-6.8/target/lib/arm/ARMARCH7/gnu_standard -LE:/WindRiver6./vxworks-6.8/target/lib/arm/ARMARCH7/gnu -LE:/WindRiver6./vxworks-6.8/target/lib/arm/ARMARCH7/common -LE:/WindRiver6./vxworks-6.8/target/lib/arm/ARMARCH7/gnu -LE:/WindRiver6./vxworks-6.8/target/lib/arm/ARMARCH7/common -LE:/WindRiver6./components/obj/vxworks-6.8/krnl/lib/arm/ARMARCH7/gnu -LE:/WindRiver6./components/obj/vxworks-6.8/krnl/lib/arm/ARMARCH7/common bcm_drv.a -lipappl-basic -lipcom-basic -lipcom_vxworks-basic -lipmcrypto-basic -lipnet-basic -lipnet_krn-basic -liptcp-basic -lvxcompat-basic -lvxcoreip-basic -lvxmux-basic -lipappl-basic -lipcom-basic -lipcom_vxworks-basic -lipmcrypto-basic -lipnet-basic -lipnet_krn-basic -liptcp-basic -lvxcompat-basic -lvxcoreip-basic -lvxmux-basic -lstl -lcplus -lvxTestV2 -laim -lar521x -lar521xVxbEnd -larch -lboot -lc_wr -lcommoncc -ldcc -ldebug -ldevice -ldrv -ldshm -ldsi -lerfLib -lfp -lgcc -lhwdb -los -lpxtrace -lrpc -lspl -lssi -ltffs -ltipc -lusb -lusb2 -lvnode -lvxmp -lwdb -lwind -lwindview -lxbd -lcplus -lvxTestV2 -laim -lar521x -lar521xVxbEnd -larch -lboot -lc_wr -lcommoncc -ldcc -ldebug -ldevice -ldrv -ldshm -ldsi -lerfLib -lfp -lgcc -lhwdb -los -lpxtrace -lrpc -lspl -lssi -ltffs -ltipc -lusb -lusb2 -lvnode -lvxmp -lwdb -lwind -lwindview -lxbd –end-group \ link.RAM*

2：在你的make file中增加其中的选项 -lgcc，linux是-lgcclib；

如下：

ldarm -Map boot.map -EL -e romInit -Ttext f0000000 \
-o bootrom romInit.o boot_drv.a DecLzma.o bootInit.o version.o \
bootapp.Z.o \
–start-group -LE:/WindRiver6.8/vxworks-6.8/target/lib/arm/ARMARCH7/gnu_standard -LE:/WindRiver6.8/vxworks-6.8/target/lib/arm/ARMARCH7/gnu -LE:/WindRiver6.8/vxworks-6.8/target/lib/arm/ARMARCH7/common -LE:/WindRiver6.8/vxworks-6.8/target/lib/arm/ARMARCH7/gnu -LE:/WindRiver6.8/vxworks-6.8/target/lib/arm/ARMARCH7/common -LE:/WindRiver6.8/components/obj/vxworks-6.8/krnl/lib/arm/ARMARCH7/gnu -LE:/WindRiver6.8/components/obj/vxworks-6.8/krnl/lib/arm/ARMARCH7/common bcm_drv.a -lipappl-basic -lipcom-basic -lipcom_vxworks-basic -lipmcrypto-basic -lipnet-basic -lipnet_krn-basic -liptcp-basic -lvxcompat-basic -lvxcoreip-basic -lvxmux-basic -lipappl-basic -lipcom-basic -lipcom_vxworks-basic -lipmcrypto-basic -lipnet-basic -lipnet_krn-basic -liptcp-basic -lvxcompat-basic -lvxcoreip-basic -lvxmux-basic -lstl -lcplus -lvxTestV2 -laim -lar521x -lar521xVxbEnd -larch -lgcc -lboot -lc_wr -lcommoncc -ldcc -ldebug -ldevice -ldrv -ldshm -ldsi -lerfLib -lfp -lgcc -lhwdb -los -lpxtrace -lrpc -lspl -lssi -ltffs -ltipc -lusb -lusb2 -lvnode -lvxmp -lwdb -lwind -lwindview -lxbd -lcplus -lvxTestV2 -laim -lar521x -lar521xVxbEnd -larch -lboot -lc_wr -lcommoncc -ldcc -ldebug -ldevice -ldrv -ldshm -ldsi -lerfLib -lfp -lgcc -lhwdb -los -lpxtrace -lrpc -lspl -lssi -ltffs -ltipc -lusb -lusb2 -lvnode -lvxmp -lwdb -lwind -lwindview -lxbd –end-group \
-defsym _VX_DATA_ALIGN=1 -T E:/WindRiver6.8/vxworks-6.8/target/h/tool/gnu/ldscripts/link.RAM

问题解决。

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