LLVM is gearing up to move to `std::endianness` and as part of that has
moved `llvm::support::endianness` to `llvm::endianness`
(bbdbcd83e6702f314d147a680247058a899ba261). Rename our uses.
`-disable-sandbox` to disable sandboxing when invoking subprocess from
from the frontend. Since `sandbox(7)` in macOS doesn't support nested
sandbox, complation used to fail when the parent build process is sandboxed.
Implement process launching on Windows to support macros. Prefer to use
the LLVM types wherever possible. The pipes are converted into file
descriptors as the types are internal to the process. This allows us to
have similar paths on both sides and avoid having to drag in `Windows.h`
for the definition of `HANDLE`. This is the core missing functionality
for Windows to support macros.
Previously, the compiler fails to read the result from 'getCapability'
IPC message, it used to just emit a fatalError and crashed.
Instead, propagate the error status and diagnose it.
rdar://108022847
`LoadedLibraryPlugin` is currently just a wrapper of `void` pointer from
`dlopen`. This will be convenient for abstracting platform specific
dynamic linrary handling.
Make a single 'PluginRegistry' and share it between SwiftASTManager,
IDEInspectionInstance, and CompileInstance. And inject the plugin
registry to ASTContext right after 'CompilerInstance.setup()'
That way, all sema-capable ASTContext in SourceKit share a single
PluginRegistry.
When loading plugins from `-plugin-path`, use the global `PluginRegistry` to keep a record of what's loaded. Emit these dependencies to the loaded module trace.
Executable compiler plugins are programs invoked by the host compiler
and communicate with the host with IPC via standard IO (stdin/stdout.)
Each message is serialized in JSON, prefixed with a header which is a
64bit little-endian integer indicating the size of the message.
* Basic/ExecuteWithPipe: External program invocation. Lik
llvm::sys::ExecuteNoWait() but establishing pipes to the child's
stdin/stdout
* Basic/Sandbox: Sandboxed execution helper. Create command line
arguments to be executed in sandbox environment (similar to SwiftPM's
pluging sandbox)
* AST/PluginRepository: ASTContext independent plugin manager
* ASTGen/PluginHost: Communication with the plugin. Messages are
serialized by ASTGen/LLVMJSON
rdar://101508815
