Add opt-in openresty feature for s390x support

.github/workflows/main.yml

@@ -94,6 +94,8 @@ jobs:
         run: |
           cargo test --manifest-path testcrate/Cargo.toml --release
           cargo test --manifest-path testcrate/Cargo.toml --release --features lua52compat
+          cargo test --manifest-path testcrate/Cargo.toml --release --features openresty
+          cargo test --manifest-path testcrate/Cargo.toml --release --features openresty,lua52compat
         shell: bash
 
   rustfmt:

.gitmodules

@@ -2,3 +2,7 @@
 	path = luajit2
 	url = https://github.com/LuaJIT/LuaJIT.git
 	branch = v2.1
+[submodule "luajit2-openresty"]
+	path = luajit2-openresty
+	url = https://github.com/openresty/luajit2.git
+	branch = v2.1-agentzh

Cargo.toml

@@ -10,11 +10,14 @@ license = "MIT"
 description = """
 Sources of LuaJIT 2.1 and logic to build it.
 """
-exclude = ["/luajit2/doc", "/luajit2/etc"]
+exclude = ["/luajit2/doc", "/luajit2/etc", "/luajit2-openresty/doc", "/luajit2-openresty/etc", "/luajit2-openresty/t"]
 
 [workspace]
 members = ["testcrate"]
 
+[features]
+openresty = []
+
 [dependencies]
 cc = "1.2"
 which = "8.0"

README.md

@@ -8,6 +8,8 @@
 This crate contains the sources of [LuaJIT] 2.1 (from Mike Pall) and logic to build it.
 Intended to be consumed by the [mlua-sys] crate.
 
+By default, this crate builds vanilla LuaJIT from the official repository. An optional `openresty` feature is available that builds [OpenResty's LuaJIT fork](https://github.com/openresty/luajit2) instead, which includes additional patches and support for architectures not available in vanilla LuaJIT, such as s390x (interpreter-only mode, no JIT compilation).
+
 [LuaJIT]: https://github.com/LuaJIT/LuaJIT
 [mlua-sys]: https://crates.io/crates/mlua-sys
 

luajit_relver_openresty.txt

@@ -0,0 +1 @@
+1789605824

src/lib.rs

@@ -22,6 +22,26 @@ pub struct Artifacts {
     libs: Vec<String>,
 }
 
+#[cfg(feature = "openresty")]
+fn source_dir(manifest_dir: &Path) -> PathBuf {
+    manifest_dir.join("luajit2-openresty")
+}
+
+#[cfg(not(feature = "openresty"))]
+fn source_dir(manifest_dir: &Path) -> PathBuf {
+    manifest_dir.join("luajit2")
+}
+
+#[cfg(feature = "openresty")]
+fn relver_file(manifest_dir: &Path) -> PathBuf {
+    manifest_dir.join("luajit_relver_openresty.txt")
+}
+
+#[cfg(not(feature = "openresty"))]
+fn relver_file(manifest_dir: &Path) -> PathBuf {
+    manifest_dir.join("luajit_relver.txt")
+}
+
 impl Default for Build {
     fn default() -> Self {
         Build {
@@ -111,7 +131,7 @@ impl Build {
         let host = &self.host.as_ref().expect("HOST is not set")[..];
         let out_dir = self.out_dir.as_ref().expect("OUT_DIR is not set");
         let manifest_dir = Path::new(env!("CARGO_MANIFEST_DIR"));
-        let source_dir = manifest_dir.join("luajit2");
+        let source_dir = source_dir(manifest_dir);
         let build_dir = out_dir.join("luajit-build");
         let lib_dir = out_dir.join("lib");
         let include_dir = out_dir.join("include");
@@ -127,8 +147,8 @@ impl Build {
 
         // Copy release version file
         let relver = build_dir.join(".relver");
-        fs::copy(manifest_dir.join("luajit_relver.txt"), &relver)
-            .context(|| "Cannot copy 'luajit_relver.txt'")?;
+        fs::copy(relver_file(manifest_dir), &relver)
+            .context(|| "Cannot copy release version file")?;
 
         // Fix permissions for certain build situations
         let mut perms = (fs::metadata(&relver).map(|md| md.permissions()))
@@ -237,6 +257,10 @@ impl Build {
             make.env("CCDEBUG", "-g");
             xcflags.push("-DLUA_USE_ASSERT");
             xcflags.push("-DLUA_USE_APICHECK");
+        } else if cfg!(feature = "openresty") {
+            // Override OpenResty's default CCDEBUG=-g to ensure release builds
+            // don't include debug symbols, matching vanilla LuaJIT behavior
+            make.env("CCDEBUG", "");
         }
 
         make.env("BUILDMODE", "static");
@@ -251,7 +275,7 @@ impl Build {
         let target = &self.target.as_ref().expect("TARGET is not set")[..];
         let out_dir = self.out_dir.as_ref().expect("OUT_DIR is not set");
         let manifest_dir = Path::new(env!("CARGO_MANIFEST_DIR"));
-        let source_dir = manifest_dir.join("luajit2");
+        let source_dir = source_dir(manifest_dir);
         let build_dir = out_dir.join("luajit-build");
         let lib_dir = out_dir.join("lib");
         let include_dir = out_dir.join("include");
@@ -267,8 +291,8 @@ impl Build {
 
         // Copy release version file
         let relver = build_dir.join(".relver");
-        fs::copy(manifest_dir.join("luajit_relver.txt"), &relver)
-            .context(|| "Cannot copy 'luajit_relver.txt'")?;
+        fs::copy(relver_file(manifest_dir), &relver)
+            .context(|| "Cannot copy release version file")?;
 
         let mut msvcbuild = Command::new(build_dir.join("src").join("msvcbuild.bat"));
         msvcbuild.current_dir(build_dir.join("src"));

testcrate/Cargo.toml

@@ -7,6 +7,7 @@ publish = false
 
 [features]
 lua52compat = []
+openresty = ["luajit-src/openresty"]
 
 [build-dependencies]
 luajit-src = { path = ".." }

update.sh

@@ -5,3 +5,7 @@ set -eux
 cd luajit2
 git pull
 git show -s --format=%ct > ../luajit_relver.txt
+
+cd ../luajit2-openresty
+git pull
+git show -s --format=%ct > ../luajit_relver_openresty.txt