Alex Crichton 884715c654 rustc: Load the rustc_trans crate at runtime ... Building on the work of # 45684 this commit updates the compiler to unconditionally load the `rustc_trans` crate at runtime instead of linking to it at compile time. The end goal of this work is to implement # 46819 where rustc will have multiple backends available to it to load. This commit starts off by removing the `extern crate rustc_trans` from the driver. This involved moving some miscellaneous functionality into the `TransCrate` trait and also required an implementation of how to locate and load the trans backend. This ended up being a little tricky because the sysroot isn't always the right location (for example `--sysroot` arguments) so some extra code was added as well to probe a directory relative to the current dll (the rustc_driver dll). Rustbuild has been updated accordingly as well to have a separate compilation invocation for the `rustc_trans` crate and assembly it accordingly into the sysroot. Finally, the distribution logic for the `rustc` package was also updated to slurp up the trans backends folder. A number of assorted fallout changes were included here as well to ensure tests pass and such, and they should all be commented inline.		2018-01-27 19:16:21 -08:00
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compiler_builtins_shim	Bump cc to 1.01 to include x86_64-unknown-linux-gnux32 support	2017-10-11 21:35:53 -03:00
dlmalloc_shim	std: Add a new wasm32-unknown-unknown target	2017-11-19 21:07:41 -08:00
libc_shim	Trim and document libc shim	2017-09-21 22:25:02 -04:00
Cargo.toml	rustc: Load the rustc_trans crate at runtime	2018-01-27 19:16:21 -08:00
rustc.rs	Add a Cargo-based build system	2016-02-11 10:42:28 -08:00