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ARM Compilers: refer external symbols from elf

Pavan Kumar R
Note: This was originally posted on 18th April 2011 at http://forums.arm.com

HI guys,



is it possible to compile a source file where the external symbols should be referred in the elf (elf for whole build) by ARM compiler/Linker.

we use compilers :ADS120 ,RVCT3.1,RVCT4.1

Scenario :

Build consist of all the source, we make build by integrating  this source file/changes and we compile whole build. so if there is any compilation/link error with integrated source file/changes we will able to know after whole build is compiled .
i want to optimize this process,by compiling only changed files before integrating in the whole build ,where external symbols should be referred in elf (generated for whole build(previous  successful build)). Once it compiled successfully i can integrated in build and compile.so by this process i will be able to resolve the errors in very less time.

Thanks for reading the post.
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  • Arm Employee Badge
    Note: This was originally posted on 22nd April 2011 at http://forums.arm.com

    >> But for linking errors,i need to resolve the all external symbols referred by obj file.

    Assuming you know what objects have changed (the ones you just recompiled), the ones which haven't (all the others which you built last time), I don't see why you can't just do a normal link step. So in general I still stick by my last point that you need to fix your build system ...

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  • Arm Employee Badge
    Note: This was originally posted on 22nd April 2011 at http://forums.arm.com

    >> But for linking errors,i need to resolve the all external symbols referred by obj file.

    Assuming you know what objects have changed (the ones you just recompiled), the ones which haven't (all the others which you built last time), I don't see why you can't just do a normal link step. So in general I still stick by my last point that you need to fix your build system ...

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