Sketch arm support

.github/workflows/rust.yml

@@ -100,6 +100,12 @@ jobs:
     steps:
     - uses: actions/checkout@v4
 
+    # necessary for sandbox
+    - name: Install system dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libunwind-dev
+
     - name: Install Rust toolchain
       uses: dtolnay/rust-toolchain@master
       with:

cli/Cargo.toml

@@ -35,6 +35,11 @@ uuid = { version = "1", features = ["v4"] }
 nfsserve = "0.10"
 async-trait = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+# Sandbox dependencies - (requires libunwind-dev on ARM)
+agentfs-sandbox = { path = "../sandbox" }
+reverie = { git = "https://github.com/facebookexperimental/reverie" }
+reverie-ptrace = { git = "https://github.com/facebookexperimental/reverie" }
+reverie-process = { git = "https://github.com/facebookexperimental/reverie" }
 
 # macOS dependencies for FUSE and NFS functionality
 [target.'cfg(target_os = "macos")'.dependencies]
@@ -52,12 +57,6 @@ tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 # with Apple clang (`veor3q_u8` in `aegis128l_neon_sha3.c`).
 aegis = { version = "0.9.6", features = ["pure-rust"] }
 
-# Sandbox dependencies - Linux x86_64 only (requires libunwind-ptrace)
-[target.'cfg(all(target_os = "linux", target_arch = "x86_64"))'.dependencies]
-agentfs-sandbox = { path = "../sandbox" }
-reverie = { git = "https://github.com/facebookexperimental/reverie" }
-reverie-ptrace = { git = "https://github.com/facebookexperimental/reverie" }
-reverie-process = { git = "https://github.com/facebookexperimental/reverie" }
 
 # The profile that 'dist' will build with
 [profile.dist]

cli/build.rs

@@ -2,8 +2,7 @@ use std::process::Command;
 
 fn main() {
     // Sandbox uses libunwind-ptrace which depends on liblzma and gcc_s.
-    // Only available on Linux x86_64.
-    #[cfg(all(target_os = "linux", target_arch = "x86_64"))]
+    #[cfg(target_os = "linux")]
     {
         println!("cargo:rustc-link-lib=lzma");
         // libgcc_s provides _Unwind_RaiseException and other exception handling symbols

cli/src/cmd/mod.rs

@@ -13,14 +13,14 @@ mod mount;
 // - macOS: use NFS-based sandbox (run_nfs.rs)
 // - Other platforms: use stub (run_stub.rs)
 
-#[cfg(all(target_os = "linux", target_arch = "x86_64"))]
+#[cfg(target_os = "linux")]
 mod run;
 
 #[cfg(target_os = "macos")]
 #[path = "run_nfs.rs"]
 mod run;
 
-#[cfg(not(any(all(target_os = "linux", target_arch = "x86_64"), target_os = "macos")))]
+#[cfg(not(any(all(target_os = "linux"), target_os = "macos")))]
 #[path = "run_stub.rs"]
 mod run;
 

cli/src/cmd/run.rs

@@ -1,4 +1,4 @@
-//! Run command handler for Linux x86_64.
+//! Run command handler for Linux.
 //!
 //! Dispatches to either the overlay sandbox (default) or the experimental
 //! ptrace-based sandbox based on command-line flags.

cli/src/cmd/run_stub.rs

@@ -12,7 +12,9 @@ pub async fn handle_run_command(
     _command: PathBuf,
     _args: Vec<String>,
 ) -> Result<()> {
-    eprintln!("Error: The 'run' command is only available on Linux x86_64.");
+    eprintln!(
+        "Error: The 'run' command is only available on Linux (on ARM requires libunwind-dev)."
+    );
     eprintln!();
     eprintln!("However, you can still use the other AgentFS commands:");
     eprintln!("  - 'agentfs init' to create a new agent filesystem");

cli/src/sandbox/mod.rs

@@ -4,8 +4,8 @@
 //! - `overlay`: FUSE + namespace-based sandbox with copy-on-write filesystem
 //! - `ptrace`: ptrace-based syscall interception sandbox (experimental)
 
-#[cfg(all(target_os = "linux", target_arch = "x86_64"))]
+#[cfg(target_os = "linux")]
 pub mod overlay;
 
-#[cfg(all(target_os = "linux", target_arch = "x86_64"))]
+#[cfg(target_os = "linux")]
 pub mod ptrace;