Try #2010:

.github/workflows/main.yaml

@@ -191,6 +191,28 @@ jobs:
         run: |
           make build-wapm
         if: needs.setup.outputs.DOING_RELEASE == '1'
+      - name: Install Nightly Rust for Headless
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: 'nightly-2020-12-22'
+          target: ${{ matrix.target }}
+          override: true
+          components: "rust-src"
+        #if: needs.setup.outputs.DOING_RELEASE == '1'
+      - name: Build Minimal Wasmer Headless
+        run: |
+          echo "\n[profile.release]
+opt-level = 'z'
+debug = false
+debug-assertions = false
+overflow-checks = false
+lto = true
+panic = 'abort'
+incremental = false
+codegen-units = 1
+rpath = false" >> Cargo.toml
+          make build-wasmer-headless-minimal
+        #if: needs.setup.outputs.DOING_RELEASE == '1'
       - name: Copy target binaries
         run: |
           mkdir -p target/release

Makefile

@@ -54,6 +54,7 @@ endif
 # Using filter as a logical OR
 # https://stackoverflow.com/questions/7656425/makefile-ifeq-logical-or
 use_system_ffi =
+cross_compiling_to_mac_aarch64 =
 ifneq (,$(filter $(ARCH),aarch64 arm64))
 	test_compilers_engines += cranelift-jit
 	ifneq (, $(findstring llvm,$(compilers)))
@@ -62,6 +63,7 @@ ifneq (,$(filter $(ARCH),aarch64 arm64))
 	# if we are in macos arm64, we use the system libffi for the capi
 	ifeq ($(UNAME_S), Darwin)
 		use_system_ffi = yes
+		cross_compiling_to_mac_aarch64 = yes
 	endif
 endif
 
@@ -121,7 +123,7 @@ build-wasmer-debug:
 build-wasmer-headless-minimal:
 	HOST_TARGET=$$(rustup show | grep 'Default host: ' | cut -d':' -f2 | tr -d ' ') ;\
   echo $$HOST_TARGET ;\
-	xargo build -v --target $$HOST_TARGET --release --manifest-path=lib/cli/Cargo.toml --no-default-features --features disable-all-logging,native,wasi ;\
+	RUSTFLAGS="-C panic=abort" xargo build -v --target $$HOST_TARGET --release --manifest-path=lib/cli/Cargo.toml --no-default-features --features headless-minimal ;\
 	strip target/$$HOST_TARGET/release/wasmer
 
 WAPM_VERSION = master # v0.5.0
@@ -326,6 +328,18 @@ ifeq ($(UNAME_S), Darwin)
 endif
 endif
 
+package-minimal-headless-wasmer:
+ifdef cross_compiling_to_mac_aarch64
+	if [ -f "target/aarch64-apple-darwin/release/wasmer" ]; then \
+		cp target/aarch64-apple-darwin/release/wasmer package/bin/wasmer-headless ;\
+	fi
+else
+	HOST_TARGET=$$(rustup show | grep 'Default host: ' | cut -d':' -f2 | tr -d ' ') ;\
+	if [ -f "target/$$HOST_TARGET/release/wasmer" ]; then \
+		cp target/$$HOST_TARGET/release/wasmer package/bin/wasmer-headless ;\
+	fi
+endif
+
 package-wasmer:
 	mkdir -p "package/bin"
 ifeq ($(OS), Windows_NT)
@@ -369,7 +383,7 @@ package-docs: build-docs build-docs-capi
 	echo '<!-- Build $(SOURCE_VERSION) --><meta http-equiv="refresh" content="0; url=rust/wasmer_vm/index.html">' > package/docs/index.html
 	echo '<!-- Build $(SOURCE_VERSION) --><meta http-equiv="refresh" content="0; url=wasmer_vm/index.html">' > package/docs/crates/index.html
 
-package: package-wapm package-wasmer package-capi
+package: package-wapm package-wasmer package-minimal-headless-wasmer package-capi
 
 distribution: package
 	cp LICENSE package/LICENSE

Xargo.toml

@@ -0,0 +1,2 @@
+[dependencies]
+std = {default-features=false, features=["panic_immediate_abort"]}

lib/cli/Cargo.toml

@@ -107,3 +107,5 @@ llvm = [
 ]
 debug = ["fern", "log", "wasmer-wasi/logging"]
 disable-all-logging = ["wasmer-wasi/disable-all-logging"]
+headless = []
+headless-minimal = ["headless", "disable-all-logging", "wasi", "native", "jit"]

lib/cli/src/bin/wasmer.rs

@@ -1,15 +1,28 @@
 use anyhow::Result;
+#[cfg(feature = "compiler")]
+use wasmer_cli::commands::Compile;
 #[cfg(all(feature = "object-file", feature = "compiler"))]
 use wasmer_cli::commands::CreateExe;
 #[cfg(feature = "wast")]
 use wasmer_cli::commands::Wast;
-use wasmer_cli::commands::{Cache, Compile, Config, Inspect, Run, SelfUpdate, Validate};
+use wasmer_cli::commands::{Cache, Config, Inspect, Run, SelfUpdate, Validate};
 use wasmer_cli::error::PrettyError;
 
 use structopt::{clap::ErrorKind, StructOpt};
 
 #[derive(Debug, StructOpt)]
-#[structopt(name = "wasmer", about = "WebAssembly standalone runtime.", author)]
+#[cfg_attr(
+    not(feature = "headless"),
+    structopt(name = "wasmer", about = "WebAssembly standalone runtime.", author)
+)]
+#[cfg_attr(
+    feature = "headless",
+    structopt(
+        name = "wasmer-headless",
+        about = "Headless WebAssembly standalone runtime.",
+        author
+    )
+)]
 /// The options for the wasmer Command Line Interface
 enum WasmerCLIOptions {
     /// Run a WebAssembly file. Formats accepted: wasm, wat
@@ -25,6 +38,7 @@ enum WasmerCLIOptions {
     Validate(Validate),
 
     /// Compile a WebAssembly binary
+    #[cfg(feature = "compiler")]
     #[structopt(name = "compile")]
     Compile(Compile),
 
@@ -59,6 +73,7 @@ impl WasmerCLIOptions {
             Self::SelfUpdate(options) => options.execute(),
             Self::Cache(cache) => cache.execute(),
             Self::Validate(validate) => validate.execute(),
+            #[cfg(feature = "compiler")]
             Self::Compile(compile) => compile.execute(),
             #[cfg(all(feature = "object-file", feature = "compiler"))]
             Self::CreateExe(create_exe) => create_exe.execute(),

lib/cli/src/commands.rs

@@ -1,5 +1,6 @@
 //! The commands available in the Wasmer binary.
 mod cache;
+#[cfg(feature = "compiler")]
 mod compile;
 mod config;
 #[cfg(all(feature = "object-file", feature = "compiler"))]
@@ -11,8 +12,10 @@ mod validate;
 #[cfg(feature = "wast")]
 mod wast;
 
+#[cfg(feature = "compiler")]
+pub use compile::*;
 #[cfg(all(feature = "object-file", feature = "compiler"))]
 pub use create_exe::*;
 #[cfg(feature = "wast")]
 pub use wast::*;
-pub use {cache::*, compile::*, config::*, inspect::*, run::*, self_update::*, validate::*};
+pub use {cache::*, config::*, inspect::*, run::*, self_update::*, validate::*};