In message <20110713105743.0c2c116f1...@gemini.denx.de> Wolfgang Denk wrote: > > > In my preloader some exception vector were setted to print message. So > > it seems uboot.bin had some illegal asm code in it. > > Are you sure that your preloader analyses the binary image it loads > and that it would detect specific assembler code in it? I tend to > doubt that.
No, No, No it is impossibe, My preloader just set exception vector and it jump to the message output code, It print out error message when a undef instruction exception occurs. > > > > So what compiler options should be use? I notice some u-boot compile > > commandline has option '-march=armv4'. Why with this option it is still > > generate wrong code > > Thi sis a strong statement, based on somewhat weak facts. Why are you > so sure that there is any "wrong code" being generated? Please show > which exact instructions you are talking about. Because the code raised a 'undef instruction' exception, So I guess some illegal code for arm920(may be legal for other armVs) exist. I will try to objbump u-boot and analyses it later. -- Best Regards, zzs _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
