Am Dienstag, 27. Juni 2006 06:22 schrieb Binesh: > Hi, > > We are trying to build an application for ARM-11 using gcc and the > related auto make suite) that would occupy minimal size. > > After adding the -Os and -mthumb we noticed that the size of the > stripped executable with a dependency on libc.so and libz.so was about > 87K. > However, when we statically linked it the stripped size grew to 510 K. > We removed all code that uses any of string library or stdio and > instead use only system calls such as ioctl, read, write, mmap and > munmap. (verified using the symbol dumped out by readelf) > Despite this the size remains at 510K. > Trying to link with -nostdlib fails as it refers to undefined > reference to ioctl, read, write, mmap and munmap. > Trying to link with -nostartfiles brought down the size to only 502K. > > Do the sys call routines need std libs to be linked in? > Is there an alternative to reduce the size of the statically linked > exe? (Assuming that it might be difficult to migrate all code to asm) > > Would appreciate some help / guidance on this. In case there is > another forum/ list which would better annswer these question, please > fwd me to the same. > > Thanks! > -Binesh I think you have a libc.so problem. This means, you are using glibc, which really is no emebedded solution library. You should think about using smaller libraries that better fit you purpose. I found a nice page that lists some solutions: http://penguinppc.org/embedded/howto/library.html bye ingo
