This adjusts the sourcekit-lsp build to use static linking for the
internal libraries. It is not currently possible to build
SourceKitLSP.dll as that requires re-exporting the interfaces from the
consumed modules. However, this allows us to reduce the overall size of
the distribution of SourceKit-LSP by ~1 MiB and reduces the
distributed file set. The values here assume partial static linking of
swift-package-manager, which helps reduce the total size.
Before:
228,352 BuildServerProtocol.dll
1,773,056 LanguageServerProtocol.dll
114,688 LanguageServerProtocolJSONRPC.dll
49,152 LSPLogging.dll
262,656 SKCore.dll
54,784 SKSupport.dll
80,896 SKSwiftPMWorkspace.dll
150,528 SourceKitD.dll
645,632 SourceKitLSP.dll
70,144 sourcekit-lsp.exe
3,429,888 bytes
After:
2,416,640 sourcekit-lsp.exe
2,416,640 bytes
This will add an additional link request for dispatch and Foundation
libraries. These are really required on non-Darwin targets, and should
be satisfied either by the library search path or by explicitly
indicating where the dependencies can be found.
We receive a `SIGPIPE` if we write to a pipe that points to a crashed process. This in particular happens if the target of a `JSONRPCConnection` has crashed and we try to send it a message.
On Darwin, `DispatchIO` ignores `SIGPIPE` for the pipes handled by it, but that features is not available on Linux.
Instead, globally ignore `SIGPIPE` on Linux to prevent us from crashing if the `JSONRPCConnection`'s target crashes.
Fixes rdar://75580936
