Are you talking about the prettyprint stack dump?
I think that may have gone away after the recent update to the newer
llvm/clang. I think there is a bug to look into what happened here, but no one
has had the time to look into it.
Michael
> On Oct 26, 2016, at 8:53 PM, rintaro ishizaki via swift-dev
> <swift-dev@swift.org> wrote:
>
> > set_target_properties(${swift_binaries} properties ENABLE_EXPORTS 1) ?
> > I don't know if it's this simple though.
>
> Yeah, that should work as well.
> But, I'm not sure which tools should be `ENABLE_EXPORT`ed.
>
>
> 2016-10-27 3:04 GMT+09:00 Flamedoge <code.kc...@gmail.com
> <mailto:code.kc...@gmail.com>>:
> > Do not add flags to export symbols from executables without the
> > ENABLE_EXPORTS
> > <https://cmake.org/cmake/help/v3.4/prop_tgt/ENABLE_EXPORTS.html#prop_tgt:ENABLE_EXPORTS>
> > target property.
>
> set_target_properties(${swift_binaries} properties ENABLE_EXPORTS 1) ?
> I don't know if it's this simple though.
>
> On Tue, Oct 25, 2016 at 8:51 PM, rintaro ishizaki via swift-dev
> <swift-dev@swift.org <mailto:swift-dev@swift.org>> wrote:
> Hi all,
> I've noticed recent build of swift compiler doesn't show the stack dump on
> crash.
>
> Here is the result with October 25, 2016 snapshot.
> https://gist.github.com/rintaro/cb694898821fbbe8b02734862eb69534
> <https://gist.github.com/rintaro/cb694898821fbbe8b02734862eb69534>
>
> On macOS, the dump completely doesn't show up.
> On Linux, the dump shows up, but without symbols.
>
> As for Linux, I figured out that it's because of recent change in
> CMakeList.txt
> cmake_minimum_required(VERSION 3.4.3)
> Specifically, the policy change of CMP0065
> https://cmake.org/cmake/help/v3.4/policy/CMP0065.html
> <https://cmake.org/cmake/help/v3.4/policy/CMP0065.html>
> backtrace_symbols_fd() needs symbols exported.
>
> As for macOS, I'm not sure why.
>
> I don't know what is the right way to fix this.
> cmake_policy(SET CMP0065 OLD)
> would fix the Linux build but ...
>
> Any thought?
>
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