add JuliaLang

Dockerfile.rootfs

@@ -60,6 +60,9 @@ RUN ls -l /usr/bin/ | grep -- '[^9] ->.*-9$' | sed -e 's@^.* \(.\+\) -> \(.\+\)-
     mkdir -p /opt/go && \
     wget https://go.dev/dl/go1.18beta2.linux-amd64.tar.gz \
         -O - | tar -xz -C /opt/go --strip-components=1 && \
+    mkdir -p /opt/julia && \
+    wget https://julialang-s3.julialang.org/bin/linux/x64/1.7/julia-1.7.3-linux-x86_64.tar.gz \
+        -O - | tar -xz -C /opt/julia --strip-components=1 && \
     mkdir -p /tmp/kotlin && \
     wget https://github.com/JetBrains/kotlin/releases/download/v1.6.10/kotlin-compiler-1.6.10.zip \
         -O /tmp/kotlin/compiler.zip && \

smoketest/sumas.jl

@@ -0,0 +1 @@
+print(sum(parse.(Int, split(readline(), ' '))))

smoketest/test

@@ -41,6 +41,7 @@ _LANGUAGES = [
     'kj',
     'kp',
     'cs',
+    'jl',
 ]
 _EXTENSIONS = {
     'c11-gcc': 'c',

src/args.rs

@@ -41,6 +41,8 @@ pub enum Language {
     #[clap(name = "rs")]
     Rust,
     Go,
+    #[clap(name = "jl")]
+    Julia,
     #[clap(name = "js")]
     JavaScript,
     #[clap(name = "kj")]

src/jail/options.rs

@@ -14,6 +14,7 @@ use crate::args;
 const DEFAULT_EXTRA_MEMORY_SIZE_IN_BYTES: u64 = 16 * 1024 * 1024;
 const RUBY_EXTRA_MEMORY_SIZE_IN_BYTES: u64 = 56 * 1024 * 1024;
 const GO_EXTRA_MEMORY_SIZE_IN_BYTES: u64 = 512 * 1024 * 1024;
+const JULIA_EXTRA_MEMORY_SIZE_IN_BYTES: u64 = 512 * 1024 * 1024;
 
 // These are obtained by running an "empty" and measuring
 // its memory consumption, as reported by omegajail.
@@ -686,6 +687,21 @@ impl JailOptions {
                     seccomp_profile_name = String::from("go");
                     execve_args.extend([format!("./{}", args.run_target)]);
                 }
+                args::Language::Julia => {
+                    extra_memory_size_in_bytes = JULIA_EXTRA_MEMORY_SIZE_IN_BYTES;
+                    seccomp_profile_name = String::from("jl");
+                    mounts.push(MountArgs {
+                        source: Some(root.join("root-julia")),
+                        target: rootfs.join("opt/julia"),
+                        fstype: None,
+                        flags: MsFlags::MS_BIND | MsFlags::MS_RDONLY,
+                        data: None,
+                    });
+                    execve_args.extend([
+                        String::from("/usr/bin/julia"),
+                        format!("{}.jl", args.run_target),
+                    ]);
+                }
                 args::Language::JavaScript => {
                     seccomp_profile_name = String::from("js");
                     mounts.push(MountArgs {

tools/mkroot

@@ -376,6 +376,7 @@ def _main() -> None:
     JS_ROOT = '/opt/nodejs/'
     GO_ROOT = '/opt/go/'
     RUST_ROOT = '/opt/rust/'
+    JULIA_ROOT = '/opt/julia/'
 
     RUBY_FILES = resolver.files_for('ruby', exclude_packages=COMPILER_PACKAGES)
     PYTHON2_FILES = resolver.files_for(
@@ -429,6 +430,7 @@ def _main() -> None:
         root.mkdir(JS_ROOT)
         root.mkdir(RUST_ROOT)
         root.mkdir(GO_ROOT)
+        root.mkdir(JULIA_ROOT)
 
         # Other miscellaneous mountpoints
         root.mkdir('/dev/')
@@ -474,6 +476,8 @@ def _main() -> None:
                 continue
             root.symlink(f, os.path.join(RUBY_ROOT, f.replace('/', '_')))
 
+        root.symlink('/usr/bin/julia', os.path.join(JULIA_ROOT, 'bin/julia'))
+
     with Chroot(
             os.path.join(args.target, 'root'), '/', link=args.link) as root:
         install_common(root)
@@ -673,6 +677,9 @@ def _main() -> None:
     with Chroot(os.path.join(args.target, 'root-go'), GO_ROOT,
                 link=args.link) as root:
         root.copyfromhost('/opt/go', relative_to=GO_ROOT, recurse=True)
+    with Chroot(os.path.join(args.target, 'root-julia'), JULIA_ROOT,
+                link=args.link) as root:
+        root.copyfromhost('/opt/julia', relative_to=JULIA_ROOT, recurse=True)
 
     with Chroot(os.path.join(args.target, 'root-rust'), RUST_ROOT,
                 link=args.link) as root: