drop puts in favor of write, smaller main prog :D

hello/Makefile

@@ -1,17 +1,20 @@
 STRIP=riscv64-linux-gnu-strip
 CC=riscv64-linux-musl-gcc
-
+OBJDUMP=riscv64-linux-gnu-objdump
 
 .FAKE: all clean test
 
-all: hello
-
+all: hello hello-objdump.txt
 clean:
 	rm -f hello
+	rm -f hello-objdump.txt
 
 hello: hello.c
 	$(CC) -static -O2 -o hello hello.c
 
+hello-objdump.txt: hello
+	$(OBJDUMP) -d hello > hello-objdump.txt
+
 test: hello
 	./hello