[Backtracing][Linux] Add Linux crash handler to the runtime. #66407
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This also adds a function to demangle a symbol, and a way for the backtracing code to report warning messages to the same place as the main runtime. I'd like to rename the _swift_isThunkFunction() SPI also, but we can't do that until we've made the changes to the _Backtracing library, so we'll do that there instead. rdar://110261430
This was added to a later PR, but not to this one, though we need it here. rdar://110261430
This should have been disabled until apple#66338. rdar://110261430
Mike and Max made various helpful suggestions, so I've added and updated various comments and amended the code to cope with partial reads and writes. rdar://110261430
Moved the comment for `_swift_backtrace_demangle` into the header file instead of it being in the implementation. rdar://110261430
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Explanation: Adds the Linux crash handler to libswiftCore. |
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@swift-ci Please test |
MaxDesiatov
approved these changes
Jun 7, 2023
tomerd
approved these changes
Jun 7, 2023
tbkka
approved these changes
Jun 7, 2023
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This also adds a function to demangle a symbol, and a way for the backtracing code to report warning messages to the same place as the main runtime.
I'd like to rename the
_swift_isThunkFunction()SPI also, but we can't do that until we've made the changes to the_Backtracinglibrary, so we'll do that there instead.rdar://110261430