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175 lines
6.3 KiB
175 lines
6.3 KiB
# Build the `libc-test` tests as Wasm programs and run them with the selected
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# engine. Contributors beware! This Makefile follows the style of the
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# `libc-test` Makefile and uses some more exotic features of `make`.
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#
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# The top-level `test` target is composed of a chain of several phony
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# sub-targets:
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# - `download`: retrieve the `libc-test` source from a Git `$(MIRROR)`
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# - `build`: construct Wasm modules for a subset of the `libc-test` tests
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# - `run`: execute the benchmarks with a Wasm `$(ENGINE)` of choice (e.g.,
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# Wasmtime)
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test: run
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# Unlike the `libc-test` directory, we will output all artifacts to the `build`
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# directory (keeping with the `wasi-libc` conventions).
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OBJDIR ?= $(CURDIR)/build
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DOWNDIR ?= $(CURDIR)/download
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##### DOWNLOAD #################################################################
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LIBC_TEST_URL ?= https://github.com/bytecodealliance/libc-test
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LIBC_TEST = $(DOWNDIR)/libc-test
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LIBRT_URL ?= https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-16/libclang_rt.builtins-wasm32-wasi-16.0.tar.gz
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LIBRT = $(DOWNDIR)/lib/wasi/libclang_rt.builtins-wasm32.a
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WASMTIME_URL ?= https://github.com/bytecodealliance/wasmtime/releases/download/v3.0.0/wasmtime-v3.0.0-x86_64-linux.tar.xz
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WASMTIME = $(DOWNDIR)/$(shell basename $(WASMTIME_URL) .tar.xz)/wasmtime
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download: $(LIBC_TEST) $(LIBRT) $(WASMTIME)
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$(DOWNDIR):
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mkdir -p download
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$(LIBC_TEST): | $(DOWNDIR)
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git clone --depth 1 $(LIBC_TEST_URL) $@
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# TODO install target to place into...
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$(LIBRT): | $(DOWNDIR)
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wget --no-clobber --directory-prefix=$(DOWNDIR) $(LIBRT_URL)
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tar --extract --file=$(DOWNDIR)/$(shell basename $(LIBRT_URL)) --directory=$(DOWNDIR)/
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$(WASMTIME): | $(DOWNDIR)
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wget --no-clobber --directory-prefix=$(DOWNDIR) $(WASMTIME_URL)
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tar --extract --file=$(DOWNDIR)/$(shell basename $(WASMTIME_URL)) --directory=$(DOWNDIR)/
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clean::
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rm -rf download
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##### BUILD ####################################################################
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# For now, we list out the tests that we can currently build and run. This is
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# heavily focused on the functional tests; in the future it would be good to
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# fill out the missing tests and also include some `src/api` and `src/math`
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# tests (TODO).
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TESTS := \
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$(LIBC_TEST)/src/functional/argv.c \
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$(LIBC_TEST)/src/functional/basename.c \
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$(LIBC_TEST)/src/functional/clocale_mbfuncs.c \
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$(LIBC_TEST)/src/functional/clock_gettime.c \
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$(LIBC_TEST)/src/functional/crypt.c \
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$(LIBC_TEST)/src/functional/dirname.c \
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$(LIBC_TEST)/src/functional/env.c \
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$(LIBC_TEST)/src/functional/fnmatch.c \
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$(LIBC_TEST)/src/functional/iconv_open.c \
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$(LIBC_TEST)/src/functional/mbc.c \
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$(LIBC_TEST)/src/functional/memstream.c \
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$(LIBC_TEST)/src/functional/qsort.c \
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$(LIBC_TEST)/src/functional/random.c \
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$(LIBC_TEST)/src/functional/search_hsearch.c \
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$(LIBC_TEST)/src/functional/search_insque.c \
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$(LIBC_TEST)/src/functional/search_lsearch.c \
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$(LIBC_TEST)/src/functional/search_tsearch.c \
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$(LIBC_TEST)/src/functional/snprintf.c \
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$(LIBC_TEST)/src/functional/sscanf.c \
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$(LIBC_TEST)/src/functional/strftime.c \
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$(LIBC_TEST)/src/functional/string.c \
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$(LIBC_TEST)/src/functional/string_memcpy.c \
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$(LIBC_TEST)/src/functional/string_memmem.c \
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$(LIBC_TEST)/src/functional/string_memset.c \
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$(LIBC_TEST)/src/functional/string_strchr.c \
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$(LIBC_TEST)/src/functional/string_strcspn.c \
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$(LIBC_TEST)/src/functional/string_strstr.c \
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$(LIBC_TEST)/src/functional/strtod.c \
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$(LIBC_TEST)/src/functional/strtod_long.c \
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$(LIBC_TEST)/src/functional/strtod_simple.c \
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$(LIBC_TEST)/src/functional/strtof.c \
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$(LIBC_TEST)/src/functional/strtol.c \
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$(LIBC_TEST)/src/functional/swprintf.c \
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$(LIBC_TEST)/src/functional/tgmath.c \
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$(LIBC_TEST)/src/functional/udiv.c \
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$(LIBC_TEST)/src/functional/wcsstr.c \
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$(LIBC_TEST)/src/functional/wcstol.c
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# Part of the problem including more tests is that the `libc-test`
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# infrastructure code is not all Wasm-compilable. As we include more tests
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# above, this list will also likely need to grow.
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COMMON_TEST_INFRA = \
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$(LIBC_TEST)/src/common/path.c \
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$(LIBC_TEST)/src/common/print.c \
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$(LIBC_TEST)/src/common/rand.c \
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$(LIBC_TEST)/src/common/utf8.c
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# Create various lists containing the various artifacts to be built: mainly,
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# $(WASM_OBJS) are compiled in the $(OBJDIRS) and then linked together to form
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# the $(WASMS) tests.
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NAMES := $(TESTS:$(LIBC_TEST)/src/%.c=%)
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WASMS := $(TESTS:$(LIBC_TEST)/src/%.c=$(OBJDIR)/%.wasm)
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WASM_OBJS := $(TESTS:$(LIBC_TEST)/src/%.c=$(OBJDIR)/%.wasm.o)
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INFRA_WASM_OBJS := $(COMMON_TEST_INFRA:$(LIBC_TEST)/src/%.c=$(OBJDIR)/%.wasm.o)
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WASM_OBJS += $(INFRA_WASM_OBJS)
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DIRS := $(patsubst $(OBJDIR)/%/,%,$(sort $(dir $(WASM_OBJS))))
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OBJDIRS := $(DIRS:%=$(OBJDIR)/%)
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# Allow $(CC) to be set from the command line; ?= doesn't work for CC because
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# make has a default value for it.
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ifeq ($(origin CC), default)
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CC := clang
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endif
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LDFLAGS ?=
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CFLAGS ?= --target=wasm32-wasi --sysroot=../sysroot
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# Always include the `libc-test` infrastructure headers.
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CFLAGS += -I$(LIBC_TEST)/src/common
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# Compile each selected test using Clang. Note that failures here are likely
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# due to a missing `libclang_rt.builtins-wasm32.a` in the Clang lib directory.
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# This location is system-dependent, but could be fixed by something like:
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# $ sudo mkdir /usr/lib64/clang/14.0.5/lib/wasi
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# $ sudo cp download/lib/wasi/libclang_rt.builtins-wasm32.a /usr/lib64/clang/14.0.5/lib/wasi/
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build: download $(WASMS)
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$(WASMS): | $(OBJDIRS)
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$(OBJDIR)/%.wasm: $(OBJDIR)/%.wasm.o $(INFRA_WASM_OBJS)
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$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^
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$(WASM_OBJS): $(LIBC_TEST)/src/common/test.h | $(OBJDIRS)
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$(OBJDIR)/%.wasm.o: $(LIBC_TEST)/src/%.c
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$(CC) $(CFLAGS) -c -o $@ $<
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$(OBJDIRS):
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mkdir -p $@
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clean::
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rm -rf $(OBJDIR)
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##### RUN ######################################################################
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ENGINE ?= $(WASMTIME) run
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ERRS:=$(WASMS:%.wasm=%.wasm.err)
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# Use the provided Wasm engine to execute each test, emitting its output into
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# a `.err` file.
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run: build $(ERRS)
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@echo "Tests passed"
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$(ERRS): | $(OBJDIRS)
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%.wasm.err: %.wasm
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$(ENGINE) $< >$@
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clean::
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rm -rf $(OBJDIR)/*/*.err
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##### MISC #####################################################################
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# Note: the `clean` target has been built up by all of the previous sections.
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debug:
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@echo NAMES $(NAMES)
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@echo TESTS $(TESTS)
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@echo WASMS $(WASMS)
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@echo WASM_OBJS $(WASM_OBJS)
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@echo ERRS $(ERRS)
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@echo DIRS $(DIRS)
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@echo OBJDIRS $(OBJDIRS)
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.PHONY: test download build run clean
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