Comment 62 for bug 417009

A little more poking with readelf reveals that we don't actually have any data in the .eh_frame that exists on karmic/lucid:

mcasadevall@dawn:/usr/lib/ure/lib$ readelf -x.eh_frame ./libgcc3_uno.so.karmic

Hex dump of section '.eh_frame':
  0x0000c2c4 00000000 ....

mcasadevall@dawn:/usr/lib/ure/lib$ readelf -x.eh_frame ./libgcc3_uno.so.jaunty

Hex dump of section '.eh_frame':
  0x00010fa8 10000000 00000000 017a5200 027c0e01 .........zR..|..
  0x00010fb8 1b0c0d00 10000000 18000000 ecddffff ................
  0x00010fc8 28000000 00000000 00000000 (...........

I believe this is the root cause of our exceptions failing to unwind. The next step is to determine what data is in the eh_frame specifically in jaunty.