From a9d6c0bb62450e7f1a87f25f4ad8da7642d30cd2 Mon Sep 17 00:00:00 2001
From: Christoph Urlacher <christoph.urlacher@protonmail.com>
Date: Sun, 25 Jan 2026 19:46:56 +0100
Subject: [PATCH] makefile: add compilation steps for host program

---
 wasm-base/examples/Makefile | 62 ++++++++++++++++++++++++++++---------
 1 file changed, 48 insertions(+), 14 deletions(-)

diff --git a/wasm-base/examples/Makefile b/wasm-base/examples/Makefile
index 8598af5..50edcb9 100644
--- a/wasm-base/examples/Makefile
+++ b/wasm-base/examples/Makefile
@@ -1,33 +1,67 @@
-WAMRC    := /opt/wamr-wamrc/wamrc
-IWASM    := /opt/wamr-iwasm/iwasm
+# Paths
+WAMR_ROOT     := /opt/wamr
+WAMRC         := /opt/wamr-wamrc/wamrc
+IWASM         := /opt/wamr-iwasm/iwasm
+WAMRC_LIB     := /opt/wamr-libvmlib
+IWASM_LIB     := /opt/wamr-libiwasm
 
-WASI_SDK := /opt/wasi-sdk
-SYSROOT  := $(WASI_SDK)/share/wasi-sysroot
-CLANG    := $(WASI_SDK)/bin/clang
-CFLAGS   :=	--target=wasm32-wasi \
-			--sysroot=$(SYSROOT) \
-			-O2
+WASI_ROOT     := /opt/wasi-sdk
+WASI_CC       := $(WASI_ROOT)/bin/clang
+WASI_CFLAGS   := --target=wasm32-wasi \
+		         --sysroot=$(WASI_ROOT)/share/wasi-sysroot \
+		         -O0 -g -Wall
 
-SRCS     := $(wildcard *.c)
-WASMS    := $(SRCS:.c=.wasm)
-AOTS     := $(WASMS:.wasm=.aot)
+# Embedding
+EMBED_CC      := gcc
+EMBED_INCL    := -I$(WAMR_ROOT)/core/iwasm/include \
+                 -I$(WAMR_ROOT)/core/iwasm/common \
+				 -I$(WAMR_ROOT)/core/shared/platform/linux \
+				 -I$(WAMR_ROOT)/core/shared/utils \
+				 -I$(WAMR_ROOT)/core/shared/utils/uncommon
+EMBED_SOURCES := $(WAMR_ROOT)/core/shared/utils/uncommon/bh_read_file.c
+EMBED_CFLAGS  := -O0 -g -Wall $(EMBED_INCL) $(EMBED_SOURCES)
+AOT_LDFLAGS   := -Wl,-rpath,$(WAMRC_LIB)
+AOT_LDLIBS    := -L$(WAMRC_LIB) -lvmlib -lm
+INTER_LDFLAGS := -Wl,-rpath,$(IWASM_LIB)
+INTER_LDLIBS  := -L$(IWASM_LIB) -liwasm -lm
 
-.PHONY: build-all build-wasms build-aots clean
+# Files
+SRCS          := $(wildcard *.c)
+WASMS         := $(SRCS:.c=.wasm)
+AOTS          := $(WASMS:.wasm=.aot)
+OBJS          := $(SRCS:.c=.o)
+DEPS          := $(OBJS:.o=.d)
 
-build-all: build-wasms build-aots
+
+.PHONY: all build-wasms build-aots clean embed_host
+
+all: build-wasms build-aots embed_host
 
 # Compile to wasm bytecode using wasi-sdk
 build-wasms: $(WASMS)
 
 %.wasm: %.c
-	$(CLANG) $(CFLAGS) $< -o $@
+	$(WASI_CC) $(WASI_CFLAGS) $< -o $@
 
 # Compile ahead-of-time module using wamrc
 build-aots: $(AOTS)
 
 %.aot: %.wasm
 	$(WAMRC) -o $@ $<
+	# $(WAMRC) --enable-wasi -o $@ $<
 
 clean:
 	rm -f *.wasm
 	rm -f *.aot
+	rm -f *.d
+	rm -f *.o
+
+# Compile to C-embedded
+# embed: $(OBJS)
+# 	$(EMBED_CC) $(OBJS) -o embed $(AOT_LDFLAGS) $(AOT_LDLIBS)
+
+# %.o: %.c
+# 	$(EMBED_CC) $(EMBED_CFLAGS) -o $@ $<
+
+embed_host:
+	$(EMBED_CC) $(EMBED_CFLAGS) embed/host.c -o host $(INTER_LDFLAGS) $(INTER_LDLIBS)