[LLVMdev] [RFC] New ToolsSupport library for stuff that only tools need

[Chris Bieneman]

There are some pieces of functionality in LLVM today, that make sense for tools like llc, opt, clang, but they aren't relevant for embedded uses like LLVM in the JavaScript JIT. One example of this type of functionality is the signal handlers.

I'd like to propose migrating content that is specifically designed for tools into a new ToolsSupport library. My initial candidates for the new library would be; anything guarded by ENABLE_CRASH_OVERRIDES, and any functionality specific to tools (i.e. ToolOutputFile and eventually command line parsing— once it can be factored out).

The primary goal of this is to make it easy for uses of LLVM that aren't command line tools to not include functionality that isn't required for that use case.

Thoughts?

-Chris