enable enc2

Cargo.toml

@@ -11,10 +11,17 @@ keywords = ["xed", "intel", "x86", "x86_64"]
 categories = ["encoding", "external-ffi-bindings", "hardware-support", "parsing", "no_std"]
 
 [badges]
-appveyor  = { repository = "rust-xed/xed-sys" }
+appveyor = { repository = "rust-xed/xed-sys" }
 travis-ci = { repository = "rust-xed/xed-sys" }
 
 [features]
+# Enable the enc2 module of XED.
+#
+# Note that this will somewhat dramatically slow down compilation of xed-sys.
+# The enc2 module involves a large amount of generated code and the resulting
+# bindgen definitions contain 40+MB of rust code.
+enc2 = ["bindgen"]
+
 # Generate bindings with bindgen at build-time instead of using the
 # pregenerated bindings.
 #

build.rs

@@ -100,6 +100,10 @@ fn build_xed() {
         cmd.arg("--opt=0");
     }
 
+    if cfg!(feature = "enc2") {
+        cmd.arg("--enc2");
+    }
+
     eprintln!("XED build command: {:?}", cmd);
 
     let status = cmd.status().expect("Failed to start xed build");
@@ -112,6 +116,13 @@ fn build_xed() {
 
     println!("cargo:rustc-link-search=native={}", lib_dir.display());
     println!("cargo:rustc-link-lib=static=xed");
+
+    if cfg!(feature = "enc2") {
+        println!("cargo:rustc-link-lib=static=xed-enc2-m32-a32");
+        println!("cargo:rustc-link-lib=static=xed-enc2-m64-a64");
+        println!("cargo:rustc-link-lib=static=xed-chk-enc2-m32-a32");
+        println!("cargo:rustc-link-lib=static=xed-chk-enc2-m64-a64");
+    }
 }
 
 fn build_inline_shim() {

src/lib.rs

@@ -6,6 +6,10 @@
 //!
 //! # Features
 //!
+//! - `enc2` - Enable the [fast XED encoder][1]. Note that enabling this feature
+//!   results in XED generating a rather large amount of code and the resulting
+//!   bindgen bindings are over 40MB in size. Expect 5+ minute compile times
+//!   when enabling this option.
 //! - `bindgen` - Don't use the bundled bindings files and instead regenerate
 //!   rust bindings from scratch at compile time. You should never need to
 //!   enable this manually but it will be enabled by other features.