Re: Nothing (reliably) helpful from atos + dSYM
Re: Nothing (reliably) helpful from atos + dSYM
- Subject: Re: Nothing (reliably) helpful from atos + dSYM
- From: Jason Molenda <email@hidden>
- Date: Fri, 21 Nov 2008 15:43:15 -0800
On Nov 20, 2008, at 5:50 PM, Nathan Vander Wilt wrote:
On Nov 20, 2008, at 4:43 PM, Jason Molenda wrote:
Nate,
It sounds like your dSYM may not contain all the information you
think it contains. Maybe your Release target in your Xcode project
doesn't emit debug info?
You are certainly right about that! I did have a few target vs.
project discrepancies, but thanks to the tips I got here I was able
to get to the main problem: when I switch my compiler back to
gcc-4.2 from llvm-gcc-4.2 I get the symbols I expect. Hooray!
llvm-gcc-4.2 only generates debug info when compiling unoptimized. If
any optimizations are enabled, it generates no debug info.
That explains why I had symbols for my subprojects but not the main
project: I apparently had forgotten to configure them to use llvm-
gcc. But I was under the impression that LLVM GCC 4.2 would support
DWARF/dSYM (there is mention of improvements to DWARF output in the
release notes). Is this not fully the case?
I don't remember the exact official wording but llvm-gcc-4.2 is
intended as a preview in the Xcode 3.1 release. In particular, its
interoperation with the debugger hasn't seen a lot of testing yet.
J
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