[swift-users] DWARF without DSYM

[Dmitry Shevchenko]

I experimented in Xcode, and with DWARF w/o dSYM selected, debugging still
works. And even though -g option is passed to swiftc, there's no dSYM
generation occurring. So besides -g, what else makes swiftc issues that
dsymutil call?

On Fri, Aug 26, 2016 at 3:37 PM Jim Ingham <jingham at apple.com> wrote:

> dsymutil is only given the .o files and the executable - same thing lldb
> sees.  So if it can find the module map to copy it into the dSYM, lldb can
> find it and load it without the dSYM.  So whether it does work or not, it
> should be able to.
>
> Jim
>
> > On Aug 26, 2016, at 11:37 AM, Jordan Rose via swift-users <
> swift-users at swift.org> wrote:
> >
> > I suppose it can, but in theory the module that goes into the dSYM
> wouldn't be the same as the one that gets used by clients of a library.
> (Example: the one in the dSYM needs to have info about private types.) Sean
> can probably explain better than I can.
> >
> > Jordan
> >
> >
> >> On Aug 26, 2016, at 9:36, Dmitry Shevchenko <dmishe at google.com> wrote:
> >>
> >> I see. I thought LLDB can import modules independently of sources,
> isn't that what target.swift-module-search-paths option is for?
> >>
> >> On Thu, Aug 25, 2016 at 4:15 PM Jordan Rose <jordan_rose at apple.com>
> wrote:
> >> Plain DWARF isn't sufficient to debug a Swift program (we actually
> stuff the entire swiftmodule into the dSYM), but if you just want to trace
> execution you should be able to use -gline-tables-only.
> >>
> >> Jordan
> >>
> >>
> >> > On Aug 25, 2016, at 13:10, Dmitry Shevchenko via swift-users <
> swift-users at swift.org> wrote:
> >> >
> >> > Can swiftc generate debug info without a separate dSYM bundle? -g
> option looks to always generate a dSYM.
> >> > _______________________________________________
> >> > swift-users mailing list
> >> > swift-users at swift.org
> >> > https://lists.swift.org/mailman/listinfo/swift-users
> >>
> >
> > _______________________________________________
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>
>
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