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Shark time profile finds no symbols

When time profiling a certain app with Shark 4.5 and OS 10.4.11 on a MacBook Pro, the profile shows only 4 numerical addresses, plus io_alltraps in the kernel. The numerical addresses show a hint saying that "Shark was unable to find symbol information for this address range. Typically this happens because the application was compiled without symbols or they have been stripped away..." But there definitely are debug symbols; this debug build is 3 times the size of the release build. I had originally tried DWARF, but switched to STABS. I might have some frameworks without symbols, but still I should see the top level symbols, like say "main", right?

This machine does not have Xcode installed on it, just CHUD, is that a problem?
--
James W. Walker, Innoventive Software LLC
<http://www.frameforge3d.com/>
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