#1246 do_sqlite3 accesses missing symbols in libsqlite3 - DataMapper

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#1246 ✓not-applicable

do_sqlite3 accesses missing symbols in libsqlite3

Reported by Postmodern | April 16th, 2010 @ 01:32 AM

Just noticed that do_sqlite3 has trouble accessing symbols in it's own C extension library.

ruby-1.8.7-p249 > require 'do_sqlite3'
LoadError: /home/hal/.rvm/gems/ruby-1.8.7-p249/bundler/gems/do-ead4d72fd14942d850490058a50494994eca82c1-master/do_sqlite3/lib/do_sqlite3/do_sqlite3.so: undefined symbol: sqlite3_enable_load_extension - /home/hal/.rvm/gems/ruby-1.8.7-p249/bundler/gems/do-ead4d72fd14942d850490058a50494994eca82c1-master/do_sqlite3/lib/do_sqlite3/do_sqlite3.so
    from /home/hal/.rvm/gems/ruby-1.8.7-p249/bundler/gems/do-ead4d72fd14942d850490058a50494994eca82c1-master/do_sqlite3/lib/do_sqlite3/do_sqlite3.so
    from /home/hal/.rvm/gems/ruby-1.8.7-p249/bundler/gems/do-ead4d72fd14942d850490058a50494994eca82c1-master/do_sqlite3/lib/do_sqlite3.rb:22
    from (irb):1:in `require'
    from (irb):1

$ nm /usr/lib/libsqlite3.a | grep sqlite3_enable_load_extension
$ nm /home/hal/.rvm/gems/ruby-1.8.7-p249/bundler/gems/do-ead4d72fd14942d850490058a50494994eca82c1-master/do_sqlite3/lib/do_sqlite3/do_sqlite3.so | grep sqlite3_enable_load_extension
                 U sqlite3_enable_load_extension

libsqlite3: 3.6.22
uname -a: Linux example 2.6.28 #8 SMP Sun May 9 22:53:00 PDT 2010 x86_64 AMD Athlon(tm) 64 Processor 3400+ AuthenticAMD GNU/Linux

Comments and changes to this ticket

You flagged this item as spam.
Postmodern April 18th, 2010 @ 01:04 AM
After testing this on another system, it appears that somehow /usr/lib/libsqlite3.so.0.8.6 was compiled and linked without symbols. After re-installing the library and do_sqlite3, sqlite3_enable_load_extension was visible again in the symbol table and do_sqlite3 could be loaded.
You flagged this item as spam.
Postmodern April 18th, 2010 @ 01:05 AM
- Assigned user cleared.
Dirkjan Bussink May 25th, 2010 @ 01:20 PM
- State changed from “new” to “not-applicable”

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Referenced by

1242 Strange segfault when creating a connection to an sqlite3 database. This is probably related to ticket #1246. You can close t...

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