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    <p>Use <code>objdump</code> to dump both binaries and compare the result with a text comparison tool. I don't know what sections you will need to check, but I would guess that the ones which change (and thus should not be included) are: .gnu.hash, .gnu_debuglink.</p> <pre><code>$ objdump -h /bin/sh /bin/sh: file format elf64-x86-64 Sections: Idx Name Size VMA LMA File off Algn 0 .interp 0000001c 0000000000400238 0000000000400238 00000238 2**0 CONTENTS, ALLOC, LOAD, READONLY, DATA 1 .note.ABI-tag 00000020 0000000000400254 0000000000400254 00000254 2**2 CONTENTS, ALLOC, LOAD, READONLY, DATA 2 .note.gnu.build-id 00000024 0000000000400274 0000000000400274 00000274 2**2 CONTENTS, ALLOC, LOAD, READONLY, DATA 3 .gnu.hash 000036f8 0000000000400298 0000000000400298 00000298 2**3 CONTENTS, ALLOC, LOAD, READONLY, DATA 4 .dynsym 0000cbd0 0000000000403990 0000000000403990 00003990 2**3 CONTENTS, ALLOC, LOAD, READONLY, DATA 5 .dynstr 000083cf 0000000000410560 0000000000410560 00010560 2**0 CONTENTS, ALLOC, LOAD, READONLY, DATA 6 .gnu.version 000010fc 0000000000418930 0000000000418930 00018930 2**1 CONTENTS, ALLOC, LOAD, READONLY, DATA 7 .gnu.version_r 000000b0 0000000000419a30 0000000000419a30 00019a30 2**3 CONTENTS, ALLOC, LOAD, READONLY, DATA 8 .rela.dyn 000000c0 0000000000419ae0 0000000000419ae0 00019ae0 2**3 CONTENTS, ALLOC, LOAD, READONLY, DATA 9 .rela.plt 000012f0 0000000000419ba0 0000000000419ba0 00019ba0 2**3 CONTENTS, ALLOC, LOAD, READONLY, DATA 10 .init 00000018 000000000041ae90 000000000041ae90 0001ae90 2**2 CONTENTS, ALLOC, LOAD, READONLY, CODE 11 .plt 00000cb0 000000000041aeb0 000000000041aeb0 0001aeb0 2**4 CONTENTS, ALLOC, LOAD, READONLY, CODE 12 .text 0008f088 000000000041bb60 000000000041bb60 0001bb60 2**4 CONTENTS, ALLOC, LOAD, READONLY, CODE 13 .fini 0000000e 00000000004aabe8 00000000004aabe8 000aabe8 2**2 CONTENTS, ALLOC, LOAD, READONLY, CODE 14 .rodata 0001d790 00000000004aac00 00000000004aac00 000aac00 2**5 CONTENTS, ALLOC, LOAD, READONLY, DATA 15 .eh_frame_hdr 00003cdc 00000000004c8390 00000000004c8390 000c8390 2**2 CONTENTS, ALLOC, LOAD, READONLY, DATA 16 .eh_frame 00013a0c 00000000004cc070 00000000004cc070 000cc070 2**3 CONTENTS, ALLOC, LOAD, READONLY, DATA 17 .ctors 00000010 00000000006dfe08 00000000006dfe08 000dfe08 2**3 CONTENTS, ALLOC, LOAD, DATA 18 .dtors 00000010 00000000006dfe18 00000000006dfe18 000dfe18 2**3 CONTENTS, ALLOC, LOAD, DATA 19 .jcr 00000008 00000000006dfe28 00000000006dfe28 000dfe28 2**3 CONTENTS, ALLOC, LOAD, DATA 20 .dynamic 000001b0 00000000006dfe30 00000000006dfe30 000dfe30 2**3 CONTENTS, ALLOC, LOAD, DATA 21 .got 00000008 00000000006dffe0 00000000006dffe0 000dffe0 2**3 CONTENTS, ALLOC, LOAD, DATA 22 .got.plt 00000668 00000000006dffe8 00000000006dffe8 000dffe8 2**3 CONTENTS, ALLOC, LOAD, DATA 23 .data 00008430 00000000006e0660 00000000006e0660 000e0660 2**5 CONTENTS, ALLOC, LOAD, DATA 24 .bss 00005b88 00000000006e8aa0 00000000006e8aa0 000e8a90 2**5 ALLOC 25 .gnu_debuglink 0000000c 0000000000000000 0000000000000000 000e8a90 2**0 CONTENTS, READONLY </code></pre>
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    1. COCan we get just the hash of a section ? for eg. .text .data or.bss etc ? The requirement is a fast analysis, Text diffing of huge binary code will too time consuming ?
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    2. COGo ahead. I just gave you the idea. Now you have to figure out how best to use it... Objdump itself does not provide just the hash, I don't think, but you could always look at their code to see how they did it and modify it to meet your needs.
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