87 lines
2.5 KiB
Plaintext
87 lines
2.5 KiB
Plaintext
# This makefile embeds an application compiled to WASM into a native C program.
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# The WASM module will be loaded by the WASM runtime.
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# Paths
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WAMR_ROOT := /opt/wamr
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WAMRC := /opt/wamr-wamrc/wamrc
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IWASM := /opt/wamr-iwasm/iwasm
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WAMRC_LIB := /opt/wamr-libvmlib
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IWASM_LIB := /opt/wamr-libiwasm
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WASI_ROOT := /opt/wasi-sdk
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WASI_CC := $(WASI_ROOT)/bin/clang
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WASI_CFLAGS := --target=wasm32-wasi \
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--sysroot=$(WASI_ROOT)/share/wasi-sysroot \
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-O0 -g -Wall
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# Embedding
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EMBED_CC := gcc
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EMBED_INCL := -I$(WAMR_ROOT)/core/iwasm/include \
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-I$(WAMR_ROOT)/core/iwasm/common \
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-I$(WAMR_ROOT)/core/shared/platform/linux \
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-I$(WAMR_ROOT)/core/shared/utils \
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-I$(WAMR_ROOT)/core/shared/utils/uncommon
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EMBED_SOURCES := $(WAMR_ROOT)/core/shared/utils/uncommon/bh_read_file.c # Not used when reading from buffer
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EMBED_CFLAGS := -O0 -g -Wall $(EMBED_INCL)
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AOT_LDFLAGS := -Wl,-rpath,$(WAMRC_LIB)
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AOT_LDLIBS := -L$(WAMRC_LIB) -lvmlib -lm
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INTER_LDFLAGS := -Wl,-rpath,$(IWASM_LIB)
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INTER_LDLIBS := -L$(IWASM_LIB) -liwasm -lm
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XXD := busybox xxd
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# Files
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SRCS := $(wildcard *.c)
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WASMS := $(SRCS:.c=.wasm)
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CWASMS := $(SRCS:.c=_wasm.c)
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AOTS := $(SRCS:.c=.aot)
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OBJS := $(SRCS:.c=.o)
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DEPS := $(SRCS:.c=.d)
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HOSTS := $(SRCS:.c=_host.elf)
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.PHONY: all build-wasms build-aots build-cwasms build-hosts clean
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all: build-wasms build-aots build-cwasms build-hosts
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# Compile to wasm bytecode using wasi-sdk
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build-wasms: $(WASMS)
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%.wasm: %.c
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$(WASI_CC) $(WASI_CFLAGS) $< -o $@
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# Compile ahead-of-time module using wamrc
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build-aots: $(AOTS)
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%.aot: %.wasm
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$(WAMRC) -o $@ $<
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# Convert the .aot files to C-style arrays (to embed them into the resulting host binary)
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build-cwasms: $(CWASMS)
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%_wasm.c: %.aot
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$(XXD) -i $< > $@
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# Compile the host that will load and run the compiled wasm module
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# The compiled wasm module is embedded as C-style array
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build-hosts: $(HOSTS)
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# The C-style array is called %_aot, e.g. test_aot
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# We have to modify the host to refer to that with the correct name
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%_host.elf: %_wasm.c
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cp embed/host.c embed/$*_host.c
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sed -i \
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-e "s@__WASM_ARRAY_FILE__@../$*_wasm.c@g" \
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-e "s@__WASM_ARRAY__@$*_aot@g" \
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-e "s@__WASM_ARRAY_LEN__@$*_aot_len@g" \
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embed/$*_host.c
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$(EMBED_CC) $(EMBED_CFLAGS) embed/$*_host.c -o $@ $(INTER_LDFLAGS) $(INTER_LDLIBS)
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clean:
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rm -f *.wasm
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rm -f *.aot
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rm -f *_wasm.c
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rm -f *.d
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rm -f *.o
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rm -f embed/*_host.c
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rm -f *_host.elf
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