update wasm aot recipe for linux (only use --xip for fail/baremetal)

scripts/nixos.just

@@ -170,7 +170,7 @@ build module="__help" target="fail" mode="aot":
 
     if [ "{{ mode }}" = "aot" ]; then
         just build-wasm-module {{ module }}
-        just build-wasm-aot {{ module }}
+        just build-wasm-aot {{ module }} {{ target }}
         just build-wasm-aot-array {{ module }}
 
         just prepare-aot-host {{ module }}

scripts/wasm.just

@@ -49,13 +49,18 @@ LINUX_LDFLAGS_NOWASM := "\
 -lm \
 "
 WAMRC := "wamrc"
-WAMRCFLAGS := "\
+CROSS_WAMRCFLAGS := "\
 --target=i386 \
 --cpu=generic \
 --opt-level=0 \
 --enable-indirect-mode \
 --disable-llvm-intrinsics \
 "
+LINUX_WAMRCFLAGS := "\
+--target=i386 \
+--cpu=generic \
+--opt-level=0 \
+"
 XXD := "xxd"
 
 [doc("C -> WASM: Compile a C function to a WASM module using WASI-SDK")]
@@ -63,10 +68,29 @@ XXD := "xxd"
 build-wasm-module module:
     {{ WASI_CC }} {{ WASI_CFLAGS }} targets/wasm-module/{{ module }}.cpp -o {{ BUILD_DIR }}-{{ module }}/wasm_module.wasm
 
+[private]
+build-wasm-aot-linux module:
+    {{ WAMRC }} {{ LINUX_WAMRCFLAGS }} -o {{ BUILD_DIR }}-{{ module }}/wasm_module.aot {{ BUILD_DIR }}-{{ module }}/wasm_module.wasm
+
+[private]
+build-wasm-aot-cross module:
+    {{ WAMRC }} {{ CROSS_WAMRCFLAGS }} -o {{ BUILD_DIR }}-{{ module }}/wasm_module.aot {{ BUILD_DIR }}-{{ module }}/wasm_module.wasm
+
+
 [doc("WASM -> AOT: Compile a WASM module ahead-of-time using WAMR")]
 [group("1: build module")]
-build-wasm-aot module:
-    {{ WAMRC }} {{ WAMRCFLAGS }} -o {{ BUILD_DIR }}-{{ module }}/wasm_module.aot {{ BUILD_DIR }}-{{ module }}/wasm_module.wasm
+build-wasm-aot module target="fail":
+    #!/usr/bin/env sh
+    if [ "{{ target }}" = "fail" ]; then
+        just build-wasm-aot-cross "{{ module }}"
+    elif [ "{{ target }}" = "linux" ]; then
+        just build-wasm-aot-linux "{{ module }}"
+    elif [ "{{ target }}" = "linux-baremetal" ]; then
+        just build-wasm-aot-cross "{{ module }}"
+    else
+        echo "unknown target: {{ target }}" >&2
+        exit 1
+    fi
 
 [doc("AOT -> C-Array: Dump a WASM module compiled ahead-of-time to a binary array")]
 [group("1: build module")]