Messages in this thread | | | Subject | Re: Rebuilding and checksumming the Linux kernel | From | Arjan van de Ven <> | Date | Sun, 01 Apr 2007 11:58:07 -0700 |
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On Sun, 2007-04-01 at 15:56 -0300, Edgardo Hames wrote: > I'm working on a project with teams spread across the world and we all > work on the same repository patching the kernel and then integrating > into a common main branch. Even though we label the source code, we > would like to make sure that we are all building the same kernel by > running md5sum on the resulting binary. > > Right now, this is not possible because the kernel includes a > timestamp and a build number on the binary. What are this timestamps > used for? Can we just remove them? Is there any other thing that may > lead to different binaries? (we are using the exact toolchains and > build machines, so we can assume that the same executable is generated > if the input source is the same).
elfutils has a "elfcmp" program that may be useful for you
another trick could be to run objdump -d on the vmlinux, and then compare the assembly file.. you could even grep out any known date like things that way,,
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