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Operating Systems Linux Difference in binary file sizes after deploying package via yum/rpm Post 302716429 by gazza-o on Tuesday 16th of October 2012 12:23:05 PM
Old 10-16-2012
Thanks Jim.

Both seem not be stripped which surprised me - I was expecting the smaller one to be stripped.

large file
cybAgent.bin: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.2.5, dynamically linked (uses shared libs), for GNU/Linux 2.2.5, not stripped
small file
cybAgent.bin: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.2.5, dynamically linked (uses shared libs), for GNU/Linux 2.2.5, not stripped

---------- Post updated at 05:23 PM ---------- Previous update was at 03:39 PM ----------

Hi Guys,

I put the following at the top of my spec file and the rpm deploys the binaries at the exact same size as they were at source.

%global __os_install_post %{nil}

Not entirely sure why this compressions occurs by default but this entry deployed the files at the exact same size.

Thanks,
Gary
 

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ostrip(1)						      General Commands Manual							 ostrip(1)

NAME
ostrip - Reduce the size of object files SYNOPSIS
ostrip [options] file... OPTIONS
The following options are supported by the ostrip command: Removes the section of a linked image. Removes unreferenced symbols and unused type information from the symbol tables of a pre-link file. This results in a smaller on-disk executable file. If files modified with this option are subsequently linked, ostrip -m should be run on the linked image. Joins together two files that were previously split by the -t option into a symbol table file (image.stb) and a stripped image file (image). Removes unreferenced symbols and unused type information for the symbol tables of a post-link executable file. This results in a smaller on-disk executable file. The symbol table still contains all information required for debugging. Decompresses the output of ostrip. This option is provided for cases in which the input file is compressed in ALPHAMAGICZ format. Removes the symbol table and any strippable subsections of the section. (Performs the same operations as the strip command.) Splits an image file (image) into a symbol table file (image.stb) and a stripped image file (image). The symbol table file will contain a checksum of the stripped image. Displays the version of the ostrip command. Produces a reduced symbol table by remov- ing local information. Also deletes any locally strippable subsections of the section. (Performs the same operations as the ld -x com- mand.) Compresses the output of ostrip into ALPHAMAGICZ format. DESCRIPTION
The ostrip command reduces the components of any object file based on the options that are specified. It is designed to work with any object file, that is, files, image files, and shared object files. It does not work with (archive) files. RESTRICTIONS
None. EXAMPLES
The following command strips the local symbol table and converts the object file into ALPHAMAGICZ format: ostrip -x -Z obj.o The following command produces the symbol table file osize_mm.stb and the stripped image file osize.mm: ostrip -t osize.mm The following command joins the symbol table file osize_mm.stb to osize.mm: ostrip -j osize.mm SEE ALSO
Commands: strip(1), ld(1), mcs(1), objZ(1) ostrip(1)
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