[swift-dev] tips for debugging the swift executable

[Kate Stone]

Better yet, since LLDB is where we have comprehensive support for debugging Swift binaries you'll have a common debugger experience across your C/C++/Swift code.

Kate Stone k8stone at apple.com
 Xcode Low Level Tools

> On Dec 17, 2015, at 3:09 PM, Joe Groff via swift-dev <swift-dev at swift.org> wrote:
> 
> 
>> On Dec 17, 2015, at 2:57 PM, Rafkind, Jon via swift-dev <swift-dev at swift.org> wrote:
>> 
>> I use gdb on linux to debug the swift binary. I find that gdb takes about 20 seconds just to read the symbols before I can even interact with gdb. I was wondering if anyone knew of a way to decrease the symbol load time, either by some gdb settings or by compiling swift/llvm/clang in such a way as to get a usefully debuggable binary but without so many symbols.
>> 
>> My swift binary is a massive 1.1gb.
>> 
>> $ ls -lh swift
>> -rwxr-xr-x 1 jon jon 1.1G Dec  8 18:43 swift*
>> 
>> I built all of llvm/clang/swift in Debug mode.
>> 
>> (Tangentially related, but using gold instead of ld to link swift is about 2-3x faster)
> 
> You might give lldb a shot, if you haven't already. It seems to cope better with large binaries, and expr evaluation is more stable IME.
> 
> -Joe
> 
> _______________________________________________
> swift-dev mailing list
> swift-dev at swift.org
> https://lists.swift.org/mailman/listinfo/swift-dev
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.swift.org/pipermail/swift-dev/attachments/20151217/fd0c149e/attachment.html>