test: add building reactor, rework Makefile

Makefile

@@ -1,19 +1,31 @@
 WASICC?=$(WASI_SDK_PATH)/bin/clang --sysroot=${WASI_SDK_PATH}/share/wasi-sysroot
-WASM_INSTR_API_KEY=?
-
+WASM_INSTR_API_KEY?=
+.NOTINTERMEDIATE:
 .PHONY: test
 test:
 	cargo run --example=basic test/test.c.instr.wasm "Test"
 	cargo run --example=many test/test.c.instr.wasm "Test"
 
 C_MODULES := $(wildcard test/*.c)
 RS_MODULES := $(wildcard test/*.rs)
-instrument:
-	@for file in $(C_MODULES); do \
-		$(WASICC) -o $$file.wasm $$file; \
-		curl -F wasm=@$$file.wasm https://compiler-preview.dylibso.com/instrument -X POST -H "Authorization: Bearer $(WASM_INSTR_API_KEY)" > $$file.instr.wasm; \
-	done
-	@for file in $(RS_MODULES); do \
-		rustc $$file --target=wasm32-wasi -C opt-level=3 -C debuginfo=0 -o $$file.wasm; \
-		curl -F wasm=@$$file.wasm https://compiler-preview.dylibso.com/instrument -X POST -H "Authorization: Bearer $(WASM_INSTR_API_KEY)" > $$file.instr.wasm; \
-	done
+ALL_MODULES := $(C_MODULES) $(RS_MODULES)
+ALL_MODULES_INSTR_WASM := $(addsuffix .instr.wasm, $(ALL_MODULES))
+
+test/reactor-%.c.wasm: test/reactor-%.c
+	$(WASICC) -mexec-model=reactor -o $@ $^
+
+test/%.c.wasm: test/%.c
+	$(WASICC) -o $@ $^
+
+test/%.rs.wasm: test/%.rs
+	rustc $^ --target=wasm32-wasi -C opt-level=3 -C debuginfo=0 -o $@
+
+test/%.instr.wasm: test/%.wasm
+	curl -F wasm=@$^ https://compiler-preview.dylibso.com/instrument -X POST -H "Authorization: Bearer $(WASM_INSTR_API_KEY)" > $@
+
+.PHONY: instrument
+instrument: $(ALL_MODULES_INSTR_WASM)
+
+.PHONY: clean
+clean:
+	rm -f test/*.wasm

test/reactor-hello.c

@@ -0,0 +1,2 @@
+#include <stdio.h>
+void hello(void) { printf("hello world\n"); }