Ah I see, the dsym job is only created when the driver will also link the final product, in Xcode build case, it separates the linking step.
On Fri, Aug 26, 2016 at 5:35 PM Dmitry Shevchenko <dmi...@google.com> wrote: > 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 <jing...@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@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 <dmi...@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_r...@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@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@swift.org >> >> > https://lists.swift.org/mailman/listinfo/swift-users >> >> >> > >> > _______________________________________________ >> > swift-users mailing list >> > swift-users@swift.org >> > https://lists.swift.org/mailman/listinfo/swift-users >> >>
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