stub out Berkeley DB binary Runpath

I found out that all google:”Berkeley DB” binaries on Solaris x86 have (or had) problem whereby libraries are searched on /net directory.

# /usr/ccs/bin/elfdump -d /usr/lib/bdb/db_verify | grep 'R*PATH'
[5]  RUNPATH           0x225               /net/sunserver.loc0a/export/JES/U1/BDB/sbi/20070123.1/builds/solaris_x86/RELEASE/build.4.2.52_solaris_x86_5.10-RELEASE.01.23.2007.0847/usr/lib
[6]  RPATH             0x225               /net/sunserver.loc0a/export/JES/U1/BDB/sbi/20070123.1/builds/solaris_x86/RELEASE/build.4.2.52_solaris_x86_5.10-RELEASE.01.23.2007.0847/usr/lib

I read this and thought about compiling the attached source. But I couldn’t find x86 where google:”SunStudio” or gcc was installed.

Changing ELF Runpaths (Code Included) : Ali Bahrami

A recent change to Solaris ELF files makes it possible to change the google:”runpath” of a dynamic executable

Then I read this.

Introducing elfedit: A Tool For Modifying Existing ELF Objects : Ali Bahrami

elfedit can indeed modify the runpath in an object, but it is considerably more general than that. elfedit is a tool for examining and modifying the ELF metadata that resides within google:”ELF object”s.

So, I extracted google:”elfedit” and related libraries from internal google:”Nevada install” server onto Solaris 10. Maybe I’m showing my ignorance here. I couldn’t make it work on Solaris 10. It could have possibly worked although surely not supported.

So, I decided to hack the binaries. I was a little scared when google:”strings” command didn’t show it.

# /usr/bin/strings /usr/lib/bdb/google:"db_verify" | grep /net

But google:”GNU strings” can show it.

# /usr/sfw/bin/gstrings --target=elf32-i386 db_verify | grep /net
/net/sunserver.loc0a/export/JES/U1/BDB/sbi/20070123.1/builds/solaris_x86/RELEASE/build.4.2.52_solaris_x86_5.10-RELEASE.01.23.2007.0847/usr/lib

I used google:”GNU sed” to google:”stub out” runpath.

# gnused -i.backup 's|\/net/sunserver.loc0a/export/JES/U1/BDB/sbi/20070123.1/builds/solaris_x86/RELEASE/build.4.2.52_solaris_x86_5.10-RELEASE.01.23.2007.0847/usr/lib|                                                                                                                                              |' db_*
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