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Cherry-pick XcodeSDK changes #1182

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…e units

When debugging from a SymbolMap the creation of CompileUnits for the
individual object files is so lazy that RegisterXcodeSDK() is not
invoked at all before the Swift TypeSystem wants to read it. This
patch fixes this by introducing an explicit
SymbolFile::ParseXcodeSDK() call that can be invoked deterministically
before the result is required.

<rdar://problem/62532151+62326862>

https://reviews.llvm.org/D79273
(cherry picked from commit 5935227)
When debugging a remote platform, the platform you get from
GetPlatformForArchitecture doesn't inherit from PlatformDarwin.
HostInfoMacOSX seems like the right place to have a global store of
local paths.

Differential Revision: https://reviews.llvm.org/D79364

(cherry picked from commit f0c08b7)
@adrian-prantl adrian-prantl requested a review from fredriss May 6, 2020 22:34
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@swift-ci test

For Swift LLDB (but potentially also for module support in Clang-land)
we need a way to accumulate the path remappings produced by
Module::RegisterXcodeSDK(). In order to make this work for
SymbolFileDebugMaps, registering the search path remapping with both
modules is necessary.

Differential Revision: https://reviews.llvm.org/D79384

<rdar://problem/62750529>

(cherry picked from commit 01fc85d)
@adrian-prantl
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@adrian-prantl adrian-prantl merged commit d16795f into swiftlang:apple/stable/20200108 May 7, 2020
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2 participants