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Prepare PrettyStackTrace for LLDB adoption

Authored by spyffe on Dec 12 2016, 11:52 AM.



This patch fixes the linkage for __crashtracer_info__ making it have the proper mangling (extern "C") and linkage (private extern).
It also adds a new PrettyStackTrace type, allowing LLDB to adopt this instead of Host::SetCrashDescriptionWithFormat().

Without this patch, CrashTracer on macOS won't pick up pretty stack traces from any LLVM client. Also, this patch needs to be synced with an LLDB patch that adopts it.

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spyffe updated this revision to Diff 81120.Dec 12 2016, 11:52 AM
spyffe retitled this revision from to Fix the linkage for __crashtracer_info__.
spyffe updated this object.
spyffe set the repository for this revision to rL LLVM.
spyffe edited subscribers, added: cfe-commits; removed: jgosnell.
spyffe added a subscriber: jgosnell.
clayborg accepted this revision.Dec 12 2016, 1:06 PM
clayborg edited edge metadata.
This revision is now accepted and ready to land.Dec 12 2016, 1:06 PM
spyffe updated this revision to Diff 81304.Dec 13 2016, 2:38 PM
spyffe retitled this revision from Fix the linkage for __crashtracer_info__ to Prepare PrettyStackTrace for LLDB adoption.
spyffe updated this object.
spyffe edited edge metadata.
beanz accepted this revision.Dec 13 2016, 9:34 PM
beanz edited edge metadata.

LGTM other than a few style comments. Please clang-format before committing. Some of the formatting looks off (although that might just be my phone).

152 ↗(On Diff #81304)

Your variable names are very LLDB-esque. Please follow the LLVM style guide, which is CamelCase.

This revision was automatically updated to reflect the committed changes.