Make VaList contain a VaListImpl directly.

.github/workflows/issue_handler.yml

@@ -0,0 +1,16 @@
+name: Add new issues to project
+
+on:
+  issues:
+    types:
+      - opened
+
+jobs:
+  add-to-project:
+    name: Add issue to project
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/add-to-project@v0.5.0
+        with:
+          project-url: https://github.com/orgs/esp-rs/projects/2
+          github-token: ${{ secrets.PAT }}

.gitmodules

@@ -32,8 +32,8 @@
 	shallow = true
 [submodule "src/llvm-project"]
 	path = src/llvm-project
-	url = https://github.com/rust-lang/llvm-project.git
-	branch = rustc/19.1-2024-07-30
+	url = https://github.com/espressif/llvm-project
+	branch = xtensa_release_18.1.2
 	shallow = true
 [submodule "src/doc/embedded-book"]
 	path = src/doc/embedded-book

README.md

@@ -1,56 +1,24 @@
-<div align="center">
-  <picture>
-    <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/rust-lang/www.rust-lang.org/master/static/images/rust-social-wide-dark.svg">
-    <source media="(prefers-color-scheme: light)" srcset="https://raw.githubusercontent.com/rust-lang/www.rust-lang.org/master/static/images/rust-social-wide-light.svg">
-    <img alt="The Rust Programming Language: A language empowering everyone to build reliable and efficient software"
-         src="https://raw.githubusercontent.com/rust-lang/www.rust-lang.org/master/static/images/rust-social-wide-light.svg"
-         width="50%">
-  </picture>
+# The Rust Programming Language for Espressif chips
 
-[Website][Rust] | [Getting started] | [Learn] | [Documentation] | [Contributing]
-</div>
+This fork enables projects to be built for the Xtensa-based ESP32, ESP32-SXX and ESP8266 using [Espressif's llvm fork](https://github.com/espressif/llvm-project). (RiscV chips like ESP32-CXX are already supported in stock Rust.)
 
-This is the main source code repository for [Rust]. It contains the compiler,
-standard library, and documentation.
+Moreover, this fork enables Rust STD support (networking, threads, and filesystem) for all chips in the ESP32 family (Xtensa and RiscV), by optionally linking with the ESP-IDF framework.
 
-[Rust]: https://www.rust-lang.org/
-[Getting Started]: https://www.rust-lang.org/learn/get-started
-[Learn]: https://www.rust-lang.org/learn
-[Documentation]: https://www.rust-lang.org/learn#learn-use
-[Contributing]: CONTRIBUTING.md
+The [esp-rs](https://github.com/esp-rs) organization has been formed to develop runtime, pac and hal crates for the Espressif chips (bare-metal as well as ESP-IDF based).
 
-## Why Rust?
+Join in on the discussion: https://matrix.to/#/#esp-rs:matrix.org!
 
-- **Performance:** Fast and memory-efficient, suitable for critical services, embedded devices, and easily integrate with other languages.
+## Installation
 
-- **Reliability:** Our rich type system and ownership model ensure memory and thread safety, reducing bugs at compile-time.
+Please see the most up to date instructions in the [esp rust book](https://esp-rs.github.io/book/).
 
-- **Productivity:** Comprehensive documentation, a compiler committed to providing great diagnostics, and advanced tooling including package manager and build tool ([Cargo]), auto-formatter ([rustfmt]), linter ([Clippy]) and editor support ([rust-analyzer]).
+## Building from source
 
-[Cargo]: https://github.com/rust-lang/cargo
-[rustfmt]: https://github.com/rust-lang/rustfmt
-[Clippy]: https://github.com/rust-lang/rust-clippy
-[rust-analyzer]: https://github.com/rust-lang/rust-analyzer
+If you wish to build this fork from source, the instructions are almost identical to the ones upstream ([follow here](https://github.com/rust-lang/rust#installing-from-source)), however before beginning the build, run the following `./configure` command:
 
-## Quick Start
-
-Read ["Installation"] from [The Book].
-
-["Installation"]: https://doc.rust-lang.org/book/ch01-01-installation.html
-[The Book]: https://doc.rust-lang.org/book/index.html
-
-## Installing from Source
-
-If you really want to install from source (though this is not recommended), see
-[INSTALL.md](INSTALL.md).
-
-## Getting Help
-
-See https://www.rust-lang.org/community for a list of chat platforms and forums.
-
-## Contributing
-
-See [CONTRIBUTING.md](CONTRIBUTING.md).
+```
+./configure --experimental-targets=Xtensa --release-channel=nightly --enable-extended --tools=clippy,cargo,rustfmt --enable-lld
+```
 
 ## License
 
@@ -60,18 +28,3 @@ licenses.
 
 See [LICENSE-APACHE](LICENSE-APACHE), [LICENSE-MIT](LICENSE-MIT), and
 [COPYRIGHT](COPYRIGHT) for details.
-
-## Trademark
-
-[The Rust Foundation][rust-foundation] owns and protects the Rust and Cargo
-trademarks and logos (the "Rust Trademarks").
-
-If you want to use these names or brands, please read the
-[media guide][media-guide].
-
-Third-party logos may be subject to third-party copyrights and trademarks. See
-[Licenses][policies-licenses] for details.
-
-[rust-foundation]: https://foundation.rust-lang.org/
-[media-guide]: https://foundation.rust-lang.org/policies/logo-policy-and-media-guide/
-[policies-licenses]: https://www.rust-lang.org/policies/licenses