Xcode, no debug symbols for certain subclass

Question

I'm using Xcode 3.2.3 and iPhone SDK

So I'm trying to debug a UIView subclass, I hit a breakpoint in an overridden method and I can't see any symbols in either the GUI or gdb, just globals and registers.

This is what I see:

(gdb) po self
No symbol "self" in current context.

Yet when I set a breakpoint in a UIViewController subclass, all the symbols are there:

(gdb) po self
<MyViewController: 0x5c18ae0>
Current language:  auto; currently objective-c

Some things I've tried:

• clean all/rebuild
• restart Xcode
• change between debug and release
• config these options in Project settings:
  • GCC_DEBUGGING_SYMBOLS = All
  • Symbols DEBUG_INFORMATION_FORMAT = DWARF, DWARF w/ dSYM File
  • BUILD_VARIANTS = normal, debug
• threatening Xcode by swearing at it and typing rm -rf /Developer into a root bash prompt

Please help, my fingers are bleeding from debugging with NSLog

Answer 1

So changing from Debug to Release did the trick and I have all my debug symbols.

I think it's just a bug in the 4.0 SDK.

Answer 2

I experience this bug often. My workaround is typing the bt command on the gdb console, it then automagically sorts itself out and starts recognizing symbols in the current context.

Answer 3

Hmmm, tried to repro this in 3.2.3 and SDK4 Final with no success -- able to debug UIView subclass as expected. Is this occurring using one of the beta releases?

Answer 4

Happening to me, on a non-beta release. I just noticed that it only occurs when calling a class-defined method, ie (+) not (-)

I wouldn't mind not having a "self" pointer, but it also seems to wipe out all local variable displays in the debugger, and that is just wrong.

Answer 5

MTS' method worked for me. Changing from debug to release fixes this issue. How strange. I can disprove software evolved's theory, as I experience the error inside an instance method.

Answer 6

Yes, I am now experiencing it in instance methods as well. None of the workarounds listed above have made any difference. Argh!