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Files
zstd/tests/Makefile
Dave Vasilevsky f9938c217d lz4: Remove ancient test helpers
Building lz4 as root was causing `make clean` to fail with permission
errors.

We used to have to install lz4 from source back in Ubuntu 14.04, but
nowadays the installed lz4 is fine. Get rid of ancient helpers and
cruft!
2025-05-07 22:01:49 -07:00

486 lines
16 KiB
Makefile

# ################################################################
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# You may select, at your option, one of the above-listed licenses.
# ################################################################
# datagen : Synthetic and parametrable data generator, for tests
# fullbench : Precisely measure speed for each zstd inner functions
# fullbench32: Same as fullbench, but forced to compile in 32-bits mode
# fuzzer : Test tool, to check zstd integrity on target platform
# fuzzer32: Same as fuzzer, but forced to compile in 32-bits mode
# paramgrill : parameter tester for zstd
# test-zstd-speed.py : script for testing zstd speed difference between commits
# versionsTest : compatibility test between zstd versions stored on Github (v0.1+)
# zstreamtest : Fuzzer test tool for zstd streaming API
# zstreamtest32: Same as zstreamtest, but forced to compile in 32-bits mode
# ##########################################################################
ZSTD_LEGACY_SUPPORT ?= 5
export ZSTD_LEGACY_SUPPORT
DEBUGLEVEL ?= 2
export DEBUGLEVEL # transmit value to sub-makefiles
.PHONY: default
default: fullbench
LIBZSTD_MK_DIR := ../lib
include $(LIBZSTD_MK_DIR)/libzstd.mk
PRGDIR = ../programs
PYTHON ?= python3
TESTARTEFACT := versionsTest
DEBUGFLAGS += -g -Wno-c++-compat
CPPFLAGS += -I$(LIB_SRCDIR) -I$(LIB_SRCDIR)/common -I$(LIB_SRCDIR)/compress -I$(LIB_SRCDIR)/legacy \
-I$(LIB_SRCDIR)/dictBuilder -I$(LIB_SRCDIR)/deprecated -I$(PRGDIR) \
-DZSTD_WINDOW_OVERFLOW_CORRECT_FREQUENTLY=1
ZSTDCOMMON_FILES := $(sort $(ZSTD_COMMON_FILES))
ZSTDCOMP_FILES := $(sort $(ZSTD_COMPRESS_FILES))
ZSTDDECOMP_FILES := $(sort $(ZSTD_DECOMPRESS_FILES))
ZSTDLEGACY_FILES := $(sort $(wildcard $(LIB_SRCDIR)/legacy/*.c))
ZSTD_FILES := $(ZSTDDECOMP_FILES) $(ZSTDCOMMON_FILES) $(ZSTDCOMP_FILES) $(ZSTDLEGACY_FILES)
ZDICT_FILES := $(sort $(ZSTD_DICTBUILDER_FILES))
ZSTD_F1 := $(sort $(wildcard $(ZSTD_FILES)))
ZSTD_OBJ1 := $(subst $(LIB_SRCDIR)/common/,zstdm_,$(ZSTD_F1))
ZSTD_OBJ2 := $(subst $(LIB_SRCDIR)/compress/,zstdc_,$(ZSTD_OBJ1))
ZSTD_OBJ3 := $(subst $(LIB_SRCDIR)/decompress/,zstdd_,$(ZSTD_OBJ2))
ZSTD_OBJ4 := $(subst $(LIB_SRCDIR)/legacy/,zstdl_,$(ZSTD_OBJ3))
ZSTD_OBJ5 := $(ZSTD_OBJ4:.c=.o)
ZSTD_OBJECTS := $(ZSTD_OBJ5:.S=.o)
ZSTDMT_OBJ1 := $(subst $(LIB_SRCDIR)/common/,zstdmt_m_,$(ZSTD_F1))
ZSTDMT_OBJ2 := $(subst $(LIB_SRCDIR)/compress/,zstdmt_c_,$(ZSTDMT_OBJ1))
ZSTDMT_OBJ3 := $(subst $(LIB_SRCDIR)/decompress/,zstdmt_d_,$(ZSTDMT_OBJ2))
ZSTDMT_OBJ4 := $(subst $(LIB_SRCDIR)/legacy/,zstdmt_l_,$(ZSTDMT_OBJ3))
ZSTDMT_OBJ5 := $(ZSTDMT_OBJ4:.c=.o)
ZSTDMT_OBJECTS := $(ZSTDMT_OBJ5:.S=.o)
# Define *.exe as extension for Windows systems
ifneq (,$(filter Windows%,$(OS)))
EXT =.exe
MULTITHREAD_CPP = -DZSTD_MULTITHREAD
MULTITHREAD_LD =
else
EXT =
MULTITHREAD_CPP = -DZSTD_MULTITHREAD
MULTITHREAD_LD = -pthread
endif
MULTITHREAD = $(MULTITHREAD_CPP) $(MULTITHREAD_LD)
VOID = /dev/null
ZSTREAM_TESTTIME ?= -T90s
FUZZERTEST ?= -T200s
ZSTDRTTEST = --test-large-data
DECODECORPUS_TESTTIME ?= -T30
.PHONY: all
all: fullbench fuzzer zstreamtest paramgrill datagen decodecorpus roundTripCrash poolTests
.PHONY: all32
all32: fullbench32 fuzzer32 zstreamtest32
.PHONY: allnothread
allnothread: MULTITHREAD_CPP=
allnothread: MULTITHREAD_LD=
allnothread: fullbench fuzzer paramgrill datagen decodecorpus
# note : broken : requires symbols unavailable from dynamic library
.PHONY: dll
dll: fuzzer-dll zstreamtest-dll
.PHONY: zstd zstd32 zstd-nolegacy # only external makefile knows how to build or update them
zstd zstd32 zstd-nolegacy zstd-dll:
$(MAKE) -C $(PRGDIR) $@ MOREFLAGS+="$(DEBUGFLAGS)"
.PHONY: libzstd
libzstd :
$(MAKE) -C $(LIB_SRCDIR) libzstd MOREFLAGS+="$(DEBUGFLAGS)"
%-dll : libzstd
%-dll : LDFLAGS += -L$(LIB_BINDIR) -lzstd
$(LIB_BINDIR)/libzstd.a :
$(MAKE) -C $(LIB_SRCDIR) libzstd.a
zstdm_%.o : $(LIB_SRCDIR)/common/%.c
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
zstdc_%.o : $(LIB_SRCDIR)/compress/%.c
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
zstdd_%.o : $(LIB_SRCDIR)/decompress/%.c
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
zstdd_%.o : $(LIB_SRCDIR)/decompress/%.S
$(CC) -c $(CPPFLAGS) $(ASFLAGS) $< -o $@
zstdl_%.o : $(LIB_SRCDIR)/legacy/%.c
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
zstdmt%.o : CPPFLAGS += $(MULTITHREAD_CPP)
zstdmt_m_%.o : $(LIB_SRCDIR)/common/%.c
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
zstdmt_c_%.o : $(LIB_SRCDIR)/compress/%.c
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
zstdmt_d_%.o : $(LIB_SRCDIR)/decompress/%.c
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
zstdmt_d_%.o : $(LIB_SRCDIR)/decompress/%.S
$(CC) -c $(CPPFLAGS) $(ASFLAGS) $< -o $@
zstdmt_l_%.o : $(LIB_SRCDIR)/legacy/%.c
$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
FULLBENCHS := fullbench fullbench32
CLEAN += $(FULLBENCHS)
fullbench32: CPPFLAGS += -m32
$(FULLBENCHS) : CPPFLAGS += $(MULTITHREAD_CPP) -Wno-deprecated-declarations
$(FULLBENCHS) : LDFLAGS += $(MULTITHREAD_LD)
$(FULLBENCHS) : DEBUGFLAGS = -DNDEBUG # turn off assert() for speed measurements
$(FULLBENCHS) : DEBUGLEVEL = 0 # turn off assert() for speed measurements
$(FULLBENCHS) : $(ZSTD_FILES)
$(FULLBENCHS) : $(PRGDIR)/datagen.c $(PRGDIR)/lorem.c $(PRGDIR)/util.c $(PRGDIR)/timefn.c $(PRGDIR)/benchfn.c fullbench.c
$(LINK.c) $^ -o $@$(EXT)
CLEAN += fullbench-lib
fullbench-lib : CPPFLAGS += -DXXH_NAMESPACE=ZSTD_
fullbench-lib : $(PRGDIR)/datagen.c $(PRGDIR)/lorem.c $(PRGDIR)/util.c $(PRGDIR)/timefn.c $(PRGDIR)/benchfn.c $(LIB_SRCDIR)/libzstd.a fullbench.c
$(LINK.c) $^ -o $@$(EXT)
# note : broken : requires symbols unavailable from dynamic library
fullbench-dll: $(PRGDIR)/datagen.c $(PRGDIR)/util.c $(PRGDIR)/benchfn.c $(PRGDIR)/timefn.c fullbench.c
# $(CC) $(FLAGS) $(filter %.c,$^) -o $@$(EXT) -DZSTD_DLL_IMPORT=1 $(LIB_SRCDIR)/dll/libzstd.dll
$(LINK.c) $^ $(LDLIBS) -o $@$(EXT)
CLEAN += fuzzer fuzzer32
fuzzer : CPPFLAGS += $(MULTITHREAD_CPP) -Wno-deprecated-declarations
fuzzer : LDFLAGS += $(MULTITHREAD_LD)
fuzzer : $(ZSTDMT_OBJECTS)
fuzzer fuzzer32 : $(ZDICT_FILES) $(PRGDIR)/util.c $(PRGDIR)/timefn.c $(PRGDIR)/datagen.c fuzzer.c
fuzzer32 : CFLAGS += -m32 $(MULTITHREAD)
fuzzer32 : $(ZSTD_FILES)
$(LINK.c) $^ -o $@$(EXT)
# note : broken : requires symbols unavailable from dynamic library
fuzzer-dll : $(LIB_SRCDIR)/common/xxhash.c $(PRGDIR)/util.c $(PRGDIR)/timefn.c $(PRGDIR)/datagen.c fuzzer.c
$(CC) $(CPPFLAGS) $(CFLAGS) $(filter %.c,$^) $(LDFLAGS) -o $@$(EXT)
CLEAN += zstreamtest zstreamtest32
ZSTREAM_LOCAL_FILES := $(PRGDIR)/datagen.c $(PRGDIR)/util.c $(PRGDIR)/timefn.c seqgen.c zstreamtest.c external_matchfinder.c
ZSTREAM_PROPER_FILES := $(ZDICT_FILES) $(ZSTREAM_LOCAL_FILES)
ZSTREAMFILES := $(ZSTD_FILES) $(ZSTREAM_PROPER_FILES)
zstreamtest32 : CFLAGS += -m32
zstreamtest zstreamtest32 : CPPFLAGS += $(MULTITHREAD_CPP)
zstreamtest zstreamtest32 : LDFLAGS += $(MULTITHREAD_LD)
zstreamtest : $(ZSTDMT_OBJECTS) $(ZSTREAM_PROPER_FILES)
zstreamtest32 : $(ZSTREAMFILES)
zstreamtest zstreamtest32 :
$(LINK.c) $^ -o $@$(EXT)
CLEAN += zstreamtest_asan
zstreamtest_asan : CFLAGS += -fsanitize=address
zstreamtest_asan : $(ZSTREAMFILES)
$(LINK.c) $(MULTITHREAD) $^ -o $@$(EXT)
CLEAN += zstreamtest_tsan
zstreamtest_tsan : CFLAGS += -fsanitize=thread
zstreamtest_tsan : $(ZSTREAMFILES)
$(LINK.c) $(MULTITHREAD) $^ -o $@$(EXT)
CLEAN += zstreamtest_ubsan
zstreamtest_ubsan : CFLAGS += -fsanitize=undefined
zstreamtest_ubsan : $(ZSTREAMFILES)
$(LINK.c) $(MULTITHREAD) $^ -o $@$(EXT)
# note : broken : requires symbols unavailable from dynamic library
zstreamtest-dll : $(LIB_SRCDIR)/common/xxhash.c # xxh symbols not exposed from dll
zstreamtest-dll : $(ZSTREAM_LOCAL_FILES)
$(CC) $(CPPFLAGS) $(CFLAGS) $(filter %.c,$^) $(LDFLAGS) -o $@$(EXT)
CLEAN += paramgrill
paramgrill : DEBUGFLAGS = # turn off debug for speed measurements
paramgrill : LDLIBS += -lm
paramgrill : $(ZSTD_FILES) $(PRGDIR)/util.c $(PRGDIR)/timefn.c $(PRGDIR)/benchfn.c $(PRGDIR)/benchzstd.c $(PRGDIR)/datagen.c $(PRGDIR)/lorem.c paramgrill.c
CLEAN += datagen
datagen : $(PRGDIR)/datagen.c $(PRGDIR)/lorem.c loremOut.c datagencli.c
$(LINK.c) $^ -o $@$(EXT)
CLEAN += roundTripCrash
roundTripCrash: CFLAGS += $(MULTITHREAD)
roundTripCrash : $(ZSTD_OBJECTS) roundTripCrash.c
CLEAN += longmatch
longmatch : $(ZSTD_OBJECTS) longmatch.c
CLEAN += largeDictionary
largeDictionary: CFLAGS += $(MULTITHREAD)
largeDictionary: $(ZSTDMT_OBJECTS) $(PRGDIR)/datagen.c largeDictionary.c
CLEAN += invalidDictionaries
invalidDictionaries : $(ZSTD_OBJECTS) invalidDictionaries.c
CLEAN += legacy
legacy : CPPFLAGS += -UZSTD_LEGACY_SUPPORT -DZSTD_LEGACY_SUPPORT=4
legacy : $(ZSTD_FILES) legacy.c
CLEAN += decodecorpus
decodecorpus : LDLIBS += -lm
decodecorpus : $(filter-out zstdc_zstd_compress.o, $(ZSTD_OBJECTS)) $(ZDICT_FILES) $(PRGDIR)/util.c $(PRGDIR)/timefn.c decodecorpus.c
CLEAN += poolTests
poolTests : $(PRGDIR)/util.c $(PRGDIR)/timefn.c poolTests.c $(LIB_SRCDIR)/common/pool.c $(LIB_SRCDIR)/common/threading.c $(LIB_SRCDIR)/common/zstd_common.c $(LIB_SRCDIR)/common/error_private.c
$(LINK.c) $(MULTITHREAD) $^ -o $@$(EXT)
.PHONY: versionsTest
versionsTest: clean
$(PYTHON) test-zstd-versions.py
.PHONY: automated_benchmarking
automated_benchmarking: clean
$(PYTHON) automated_benchmarking.py
# make checkTag : check that release tag corresponds to release version
CLEAN += checkTag
checkTag.o : $(LIB_SRCDIR)/zstd.h
.PHONY: clean
clean:
$(MAKE) -C $(LIB_SRCDIR) clean
$(MAKE) -C $(PRGDIR) clean
$(MAKE) -C fuzz clean
$(RM) -R $(TESTARTEFACT)
$(RM) -r tmp* # some test directories are named tmp*
$(RM) $(CLEAN) core *.o *.tmp result* *.gcda dictionary *.zst \
$(PRGDIR)/zstd$(EXT) $(PRGDIR)/zstd32$(EXT) \
fullbench-dll$(EXT) fuzzer-dll$(EXT) zstreamtest-dll$(EXT)
@echo Cleaning completed
#----------------------------------------------------------------------------------
# valgrind tests validated only for some posix platforms
#----------------------------------------------------------------------------------
UNAME := $(shell sh -c 'MSYSTEM="MSYS" uname')
ifneq (,$(filter Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS AIX CYGWIN_NT%,$(UNAME)))
HOST_OS = POSIX
.PHONY: test-valgrind
test-valgrind: VALGRIND = valgrind --leak-check=full --show-leak-kinds=all --error-exitcode=1
test-valgrind: zstd datagen fuzzer fullbench
@echo "\n ---- valgrind tests : memory analyzer ----"
$(VALGRIND) ./datagen -g50M > $(VOID)
$(VALGRIND) $(PRGDIR)/zstd ; if [ $$? -eq 0 ] ; then echo "zstd without argument should have failed"; false; fi
./datagen -g80 | $(VALGRIND) $(PRGDIR)/zstd - -c > $(VOID)
./datagen -g16KB | $(VALGRIND) $(PRGDIR)/zstd -vf - -c > $(VOID)
./datagen -g2930KB | $(VALGRIND) $(PRGDIR)/zstd -5 -vf - -o tmp
$(VALGRIND) $(PRGDIR)/zstd -vdf tmp -c > $(VOID)
./datagen -g64MB | $(VALGRIND) $(PRGDIR)/zstd -vf - -c > $(VOID)
$(RM) tmp
$(VALGRIND) ./fuzzer -T1mn -t1
$(VALGRIND) ./fullbench -i1
endif
ifneq (,$(filter MINGW% MSYS%,$(UNAME)))
HOST_OS = MSYS
endif
#-----------------------------------------------------------------------------
# make tests validated only for below targets
#-----------------------------------------------------------------------------
ifneq (,$(filter MSYS POSIX,$(HOST_OS)))
DIFF:=diff
ifneq (,$(filter SunOS,$(UNAME)))
DIFF:=gdiff
endif
.PHONY: list
list:
@$(MAKE) -pRrq -f $(lastword $(MAKEFILE_LIST)) : 2>/dev/null | awk -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($$1 !~ "^[#.]") {print $$1}}' | sort | egrep -v -e '^[^[:alnum:]]' -e '^$@$$' | xargs
.PHONY: check
check: ZSTDRTTEST= # remove long tests
check: test-zstd
@echo "\n******************************"
@echo "All tests completed successfully"
@echo "******************************"
.PHONY: fuzztest
fuzztest: test-fuzzer test-zstream test-decodecorpus
.PHONY: test
test: test-zstd test-cli-tests test-fullbench test-fuzzer test-zstream test-invalidDictionaries test-legacy test-decodecorpus
ifeq ($(QEMU_SYS),)
test: test-pool
endif
@echo "\n******************************"
@echo "All tests completed successfully"
@echo "******************************"
.PHONY: test32
test32: test-zstd32 test-fullbench32 test-fuzzer32 test-zstream32
.PHONY: test-all
test-all: test test32 test-decodecorpus-cli
.PHONY: test-zstd test-zstd32 test-zstd-nolegacy
test-zstd: ZSTD = $(PRGDIR)/zstd
test-zstd: zstd
.PHONY: test-zstd-dll
test-zstd-dll: ZSTD = $(PRGDIR)/zstd
test-zstd-dll: zstd-dll
test-zstd32: ZSTD = $(PRGDIR)/zstd32
test-zstd32: zstd32
test-zstd-nolegacy: ZSTD = $(PRGDIR)/zstd-nolegacy
test-zstd-nolegacy: zstd-nolegacy
test-zstd test-zstd32 test-zstd-nolegacy test-zstd-dll: datagen
file $(ZSTD)
EXE_PREFIX="$(QEMU_SYS)" ZSTD_BIN="$(ZSTD)" DATAGEN_BIN=./datagen ./playTests.sh $(ZSTDRTTEST)
.PHONY: test-cli-tests
test-cli-tests: ZSTD = $(PRGDIR)/zstd
test-cli-tests: zstd datagen
file $(ZSTD)
./cli-tests/run.py --exec-prefix="$(QEMU_SYS)" --zstd="$(ZSTD)" --datagen=./datagen $(CLI_TEST_ARGS)
.PHONY: update-cli-tests
update-cli-tests: CLI_TEST_ARGS = --set-exact-output
update-cli-tests: test-cli-tests
.PHONY: test-fullbench
test-fullbench: fullbench datagen
$(QEMU_SYS) ./fullbench -i1
$(QEMU_SYS) ./fullbench -i1 -P0
.PHONY: test-fullbench32
test-fullbench32: fullbench32 datagen
$(QEMU_SYS) ./fullbench32 -i1
$(QEMU_SYS) ./fullbench32 -i1 -P0
.PHONY: test-fuzzer
test-fuzzer: fuzzer
$(QEMU_SYS) ./fuzzer -v $(FUZZERTEST) $(FUZZER_FLAGS)
# Note : this test presumes `fuzzer` will be built
.PHONY: test-fuzzer-stackmode
test-fuzzer-stackmode: MOREFLAGS += -DZSTD_HEAPMODE=0
test-fuzzer-stackmode: test-fuzzer
.PHONY: test-fuzzer32
test-fuzzer32: fuzzer32
$(QEMU_SYS) ./fuzzer32 -v $(FUZZERTEST) $(FUZZER_FLAGS)
.PHONY: test-zstream
test-zstream: zstreamtest
$(QEMU_SYS) ./zstreamtest -v $(ZSTREAM_TESTTIME) $(FUZZER_FLAGS)
$(QEMU_SYS) ./zstreamtest --newapi -t1 $(ZSTREAM_TESTTIME) $(FUZZER_FLAGS)
test-zstream32: zstreamtest32
$(QEMU_SYS) ./zstreamtest32 -v $(ZSTREAM_TESTTIME) $(FUZZER_FLAGS)
test-longmatch: longmatch
$(QEMU_SYS) ./longmatch
test-largeDictionary: largeDictionary
$(QEMU_SYS) ./largeDictionary
test-invalidDictionaries: invalidDictionaries
$(QEMU_SYS) ./invalidDictionaries
test-legacy: legacy
$(QEMU_SYS) ./legacy
test-decodecorpus: decodecorpus
$(QEMU_SYS) ./decodecorpus -t $(DECODECORPUS_TESTTIME)
test-decodecorpus-cli: decodecorpus
@echo "\n ---- decodecorpus basic cli tests ----"
@mkdir testdir
./decodecorpus -n5 -otestdir -ptestdir
@cd testdir && \
$(ZSTD) -d z000000.zst -o tmp0 && \
$(ZSTD) -d z000001.zst -o tmp1 && \
$(ZSTD) -d z000002.zst -o tmp2 && \
$(ZSTD) -d z000003.zst -o tmp3 && \
$(ZSTD) -d z000004.zst -o tmp4 && \
diff z000000 tmp0 && \
diff z000001 tmp1 && \
diff z000002 tmp2 && \
diff z000003 tmp3 && \
diff z000004 tmp4 && \
rm ./* && \
cd ..
@echo "\n ---- decodecorpus dictionary cli tests ----"
./decodecorpus -n5 -otestdir -ptestdir --use-dict=1MB
@cd testdir && \
$(ZSTD) -d z000000.zst -D dictionary -o tmp0 && \
$(ZSTD) -d z000001.zst -D dictionary -o tmp1 && \
$(ZSTD) -d z000002.zst -D dictionary -o tmp2 && \
$(ZSTD) -d z000003.zst -D dictionary -o tmp3 && \
$(ZSTD) -d z000004.zst -D dictionary -o tmp4 && \
diff z000000 tmp0 && \
diff z000001 tmp1 && \
diff z000002 tmp2 && \
diff z000003 tmp3 && \
diff z000004 tmp4 && \
cd ..
@rm -rf testdir
test-pool: poolTests
$(QEMU_SYS) ./poolTests
test-lz4: ZSTD = $(PRGDIR)/zstd
test-lz4: ZSTD_LZ4 = ./lz4
test-lz4: ZSTD_UNLZ4 = ./unlz4
test-lz4: zstd decodecorpus datagen
[ -f lz4 ] || ln -s $(PRGDIR)/zstd lz4
[ -f unlz4 ] || ln -s $(PRGDIR)/zstd unlz4
./decodecorpus -ptmp
# lz4 -> zstd
lz4 < tmp | \
$(ZSTD) -d | \
cmp - tmp
lz4 < tmp | \
$(ZSTD_UNLZ4) | \
cmp - tmp
# zstd -> lz4
$(ZSTD) --format=lz4 < tmp | \
lz4 -d | \
cmp - tmp
$(ZSTD_LZ4) < tmp | \
lz4 -d | \
cmp - tmp
# zstd -> zstd
$(ZSTD) --format=lz4 < tmp | \
$(ZSTD) -d | \
cmp - tmp
# zstd -> zstd
$(ZSTD) < tmp | \
$(ZSTD) -d | \
cmp - tmp
./datagen -g384KB | $(ZSTD) --format=lz4 | $(ZSTD) -d > /dev/null
rm tmp lz4 unlz4
endif