[swift-dev] Stack dump of the compiler?

[Michael Gottesman]

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 at swift.org> wrote:
> 
> > set_target_properties(${swift_binaries} properties ENABLE_EXPORTS 1)  ?
> > I don't know if it's this simple though.
> 
> Yeah, that should work as well.
> But, I'm not sure which tools should be `ENABLE_EXPORT`ed.
> 
> 
> 2016-10-27 3:04 GMT+09:00 Flamedoge <code.kchoi at gmail.com <mailto:code.kchoi at gmail.com>>:
> > Do not add flags to export symbols from executables without the ENABLE_EXPORTS <https://cmake.org/cmake/help/v3.4/prop_tgt/ENABLE_EXPORTS.html#prop_tgt:ENABLE_EXPORTS> target property.
> 
> set_target_properties(${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 at swift.org <mailto:swift-dev at 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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