1####################################################################### 2# This GNU makefile drives the build of the sqlite3 WASM 3# components. It is not part of the canonical build process. 4# 5# This build assumes a Linux platform and is not intended for 6# client-level use. It is for the sqlite project's own development of 7# the JS/WASM components. 8# 9# Primary targets: 10# 11# default, all = build in dev mode 12# 13# o0, o1, o2, o3, os, oz = full clean/rebuild with the -Ox level indicated 14# by the target name. Rebuild is necessary for all components to get 15# the desired optimization level. 16# 17# dist = create end user deliverables. Add dist-opt=oX to build with a 18# specific optimization level, where oX is one of the above-listed 19# o? target names. 20# 21# clean = clean up 22######################################################################## 23SHELL := $(shell which bash 2>/dev/null) 24MAKEFILE := $(lastword $(MAKEFILE_LIST)) 25CLEAN_FILES := 26DISTCLEAN_FILES := ./--dummy-- 27default: all 28release: oz 29 30# Emscripten SDK home dir and related binaries... 31EMSDK_HOME ?= $(word 1,$(wildcard $(HOME)/src/emsdk $(HOME)/emsdk)) 32emcc.bin ?= $(word 1,$(wildcard $(shell which emcc) $(EMSDK_HOME)/upstream/emscripten/emcc)) 33ifeq (,$(emcc.bin)) 34 $(error Cannot find emcc.) 35endif 36 37wasm-strip ?= $(shell which wasm-strip 2>/dev/null) 38ifeq (,$(filter clean,$(MAKECMDGOALS))) 39ifeq (,$(wasm-strip)) 40 $(info WARNING: *******************************************************************) 41 $(info WARNING: builds using -O2/-O3/-Os/-Oz will minify WASM-exported names,) 42 $(info WARNING: breaking _All The Things_. The workaround for that is to build) 43 $(info WARNING: with -g3 (which explodes the file size) and then strip the debug) 44 $(info WARNING: info after compilation, using wasm-strip, to shrink the wasm file.) 45 $(info WARNING: wasm-strip was not found in the PATH so we cannot strip those.) 46 $(info WARNING: If this build uses any optimization level higher than -O1 then) 47 $(info WARNING: the ***resulting WASM binary WILL NOT BE USABLE***.) 48 $(info WARNING: wasm-strip is part of the wabt package:) 49 $(info WARNING: https://github.com/WebAssembly/wabt) 50 $(info WARNING: on Ubuntu-like systems it can be installed with:) 51 $(info WARNING: sudo apt install wabt) 52 $(info WARNING: *******************************************************************) 53endif 54endif # 'make clean' check 55 56ifeq (,$(wasm-strip)) 57 maybe-wasm-strip = echo "not wasm-stripping" 58else 59 maybe-wasm-strip = $(wasm-strip) 60endif 61 62dir.top := ../.. 63# Reminder: some Emscripten flags require absolute paths but we want 64# relative paths for most stuff simply to reduce noise. The 65# $(abspath...) GNU make function can transform relative paths to 66# absolute. 67dir.wasm := $(patsubst %/,%,$(dir $(MAKEFILE))) 68dir.api := api 69dir.jacc := jaccwabyt 70dir.common := common 71dir.fiddle := fiddle 72dir.tool := $(dir.top)/tool 73######################################################################## 74# MAINTENANCE REMINDER: the output .js and .wasm files of emcc must be 75# in _this_ dir, rather than a subdir, or else parts of the generated 76# code get confused and cannot load property. Specifically, when X.js 77# loads X.wasm, whether or not X.js uses the correct path for X.wasm 78# depends on how it's loaded: an HTML script tag will resolve it 79# intuitively, whereas a Worker's call to importScripts() will not. 80# That's a fundamental incompatibility with how URL resolution in 81# JS happens between those two contexts. See: 82# 83# https://zzz.buzz/2017/03/14/relative-uris-in-web-development/ 84# 85# We unfortunately have no way, from Worker-initiated code, to 86# automatically resolve the path from X.js to X.wasm. 87# 88# In case we ever find a solution to that which does not require 89# duplicating the X.js files only to swap out the path to X.wasm for 90# the loading-from-worker case... 91# 92# dir.dout = output dir for deliverables. 93dir.dout := $(dir.wasm)/jswasm 94# dir.tmp = output dir for intermediary build files, as opposed to 95# end-user deliverables. 96dir.tmp := $(dir.wasm)/bld 97#CLEAN_FILES += $(wildcard $(dir.dout)/*) $(wildcard $(dir.tmp)/*) 98ifeq (,$(wildcard $(dir.dout))) 99 dir._tmp := $(shell mkdir -p $(dir.dout)) 100endif 101ifeq (,$(wildcard $(dir.tmp))) 102 dir._tmp := $(shell mkdir -p $(dir.tmp)) 103endif 104 105cflags.common := -I. -I.. -I$(dir.top) 106CLEAN_FILES += *~ $(dir.jacc)/*~ $(dir.api)/*~ $(dir.common)/*~ 107emcc_enable_bigint ?= 1 108sqlite3.c := $(dir.top)/sqlite3.c 109sqlite3.h := $(dir.top)/sqlite3.h 110SQLITE_OPT = \ 111 -DSQLITE_ENABLE_FTS4 \ 112 -DSQLITE_ENABLE_RTREE \ 113 -DSQLITE_ENABLE_EXPLAIN_COMMENTS \ 114 -DSQLITE_ENABLE_UNKNOWN_SQL_FUNCTION \ 115 -DSQLITE_ENABLE_STMTVTAB \ 116 -DSQLITE_ENABLE_DBPAGE_VTAB \ 117 -DSQLITE_ENABLE_DBSTAT_VTAB \ 118 -DSQLITE_ENABLE_BYTECODE_VTAB \ 119 -DSQLITE_ENABLE_OFFSET_SQL_FUNC \ 120 -DSQLITE_OMIT_LOAD_EXTENSION \ 121 -DSQLITE_OMIT_DEPRECATED \ 122 -DSQLITE_OMIT_UTF16 \ 123 -DSQLITE_OMIT_SHARED_CACHE \ 124 -DSQLITE_OMIT_WAL \ 125 -DSQLITE_THREADSAFE=0 \ 126 -DSQLITE_TEMP_STORE=3 \ 127 -DSQLITE_OS_KV_OPTIONAL=1 \ 128 '-DSQLITE_DEFAULT_UNIX_VFS="unix-none"' \ 129 -DSQLITE_USE_URI=1 \ 130 -DSQLITE_WASM_ENABLE_C_TESTS 131# ^^^ most flags are set in sqlite3-wasm.c but we need them 132# made explicit here for building speedtest1.c. 133 134ifneq (,$(filter release,$(MAKECMDGOALS))) 135emcc_opt ?= -Oz -flto 136else 137emcc_opt ?= -O0 138# ^^^^ build times for -O levels higher than 0 are painful at 139# dev-time. 140endif 141# When passing emcc_opt from the CLI, += and re-assignment have no 142# effect, so emcc_opt+=-g3 doesn't work. So... 143emcc_opt_full := $(emcc_opt) -g3 144# ^^^ ALWAYS use -g3. See below for why. 145# 146# ^^^ -flto improves runtime speed at -O0 considerably but doubles 147# build time. 148# 149# ^^^^ -O3, -Oz, -Os minify symbol names and there appears to be no 150# way around that except to use -g3, but -g3 causes the binary file 151# size to absolutely explode (approx. 5x larger). This minification 152# utterly breaks the resulting module, making it unsable except as 153# self-contained/self-referential-only code, as ALL of the exported 154# symbols get minified names. 155# 156# However, we have an option for using -Oz or -Os: 157# 158# Build with (-Os -g3) or (-Oz -g3) then use wasm-strip, from the wabt 159# tools package (https://github.com/WebAssembly/wabt), to strip the 160# debugging symbols. That results in a small build with unmangled 161# symbol names. -Oz gives ever-so-slightly better compression than 162# -Os: not quite 1% in some completely unscientific tests. Runtime 163# speed for the unit tests is all over the place either way so it's 164# difficult to say whether -Os gives any speed benefit over -Oz. 165# 166# (Much later: -O2 consistently gives the best speeds.) 167######################################################################## 168 169 170$(sqlite3.c) $(sqlite3.h): 171 $(MAKE) -C $(dir.top) sqlite3.c 172 173.PHONY: clean distclean 174clean: 175 -rm -f $(CLEAN_FILES) 176distclean: clean 177 -rm -f $(DISTCLEAN_FILES) 178 179ifeq (release,$(filter release,$(MAKECMDGOALS))) 180 ifeq (,$(wasm-strip)) 181 $(error Cannot make release-quality binary because wasm-strip is not available. \ 182 See notes in the warning above) 183 endif 184else 185 $(info Development build. Use '$(MAKE) release' for a smaller release build.) 186endif 187 188version-info := $(dir.wasm)/version-info 189# ^^^^ NOT in $(dir.tmp) because we need it to survive the cleanup 190# process for the dist build to work properly. 191$(version-info): $(dir.wasm)/version-info.c $(sqlite3.h) $(MAKEFILE) 192 $(CC) -O0 -I$(dir.top) -o $@ $< 193DISTCLEAN_FILES += $(version-info) 194 195stripccomments := $(dir.tool)/stripccomments 196$(stripccomments): $(stripccomments).c $(MAKEFILE) 197 $(CC) -o $@ $< 198DISTCLEAN_FILES += $(stripccomments) 199 200EXPORTED_FUNCTIONS.api.in := $(abspath $(dir.api)/EXPORTED_FUNCTIONS.sqlite3-api) 201EXPORTED_FUNCTIONS.api := $(dir.tmp)/EXPORTED_FUNCTIONS.api 202$(EXPORTED_FUNCTIONS.api): $(EXPORTED_FUNCTIONS.api.in) $(MAKEFILE) 203 cat $(EXPORTED_FUNCTIONS.api.in) > $@ 204 205sqlite3-license-version.js := $(dir.tmp)/sqlite3-license-version.js 206sqlite3-license-version-header.js := $(dir.api)/sqlite3-license-version-header.js 207sqlite3-api-build-version.js := $(dir.tmp)/sqlite3-api-build-version.js 208# sqlite3-api.jses = the list of JS files which make up $(sqlite3-api.js), in 209# the order they need to be assembled. 210sqlite3-api.jses := $(sqlite3-license-version.js) 211sqlite3-api.jses += $(dir.api)/sqlite3-api-prologue.js 212sqlite3-api.jses += $(dir.common)/whwasmutil.js 213sqlite3-api.jses += $(dir.jacc)/jaccwabyt.js 214sqlite3-api.jses += $(dir.api)/sqlite3-api-glue.js 215sqlite3-api.jses += $(sqlite3-api-build-version.js) 216sqlite3-api.jses += $(dir.api)/sqlite3-api-oo1.js 217sqlite3-api.jses += $(dir.api)/sqlite3-api-worker1.js 218sqlite3-api.jses += $(dir.api)/sqlite3-api-opfs.js 219sqlite3-api.jses += $(dir.api)/sqlite3-api-cleanup.js 220 221# "External" API files which are part of our distribution 222# but not part of the sqlite3-api.js amalgamation. 223SOAP.js := $(dir.api)/sqlite3-opfs-async-proxy.js 224sqlite3-worker1.js := $(dir.api)/sqlite3-worker1.js 225sqlite3-worker1-promiser.js := $(dir.api)/sqlite3-worker1-promiser.js 226define CP_XAPI 227sqlite3-api.ext.jses += $$(dir.dout)/$$(notdir $(1)) 228$$(dir.dout)/$$(notdir $(1)): $(1) $$(MAKEFILE) 229 cp $$< $$@ 230endef 231$(foreach X,$(SOAP.js) $(sqlite3-worker1.js) $(sqlite3-worker1-promiser.js),\ 232 $(eval $(call CP_XAPI,$(X)))) 233all: $(sqlite3-api.ext.jses) 234 235sqlite3-api.js := $(dir.tmp)/sqlite3-api.js 236$(sqlite3-api.js): $(sqlite3-api.jses) $(MAKEFILE) 237 @echo "Making $@..." 238 @for i in $(sqlite3-api.jses); do \ 239 echo "/* BEGIN FILE: $$i */"; \ 240 cat $$i; \ 241 echo "/* END FILE: $$i */"; \ 242 done > $@ 243 244$(sqlite3-api-build-version.js): $(version-info) $(MAKEFILE) 245 @echo "Making $@..." 246 @{ \ 247 echo 'self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){'; \ 248 echo -n ' sqlite3.version = '; \ 249 $(version-info) --json; \ 250 echo ';'; \ 251 echo '});'; \ 252 } > $@ 253 254######################################################################## 255# --post-js and --pre-js are emcc flags we use to append/prepend JS to 256# the generated emscripten module file. 257pre-js.js := $(dir.api)/pre-js.js 258post-js.js := $(dir.tmp)/post-js.js 259post-jses := \ 260 $(dir.api)/post-js-header.js \ 261 $(sqlite3-api.js) \ 262 $(dir.api)/post-js-footer.js 263$(post-js.js): $(post-jses) $(MAKEFILE) 264 @echo "Making $@..." 265 @for i in $(post-jses); do \ 266 echo "/* BEGIN FILE: $$i */"; \ 267 cat $$i; \ 268 echo "/* END FILE: $$i */"; \ 269 done > $@ 270extern-post-js.js := $(dir.api)/extern-post-js.js 271extern-pre-js.js := $(dir.api)/extern-pre-js.js 272pre-post-common.flags := \ 273 --post-js=$(post-js.js) \ 274 --extern-post-js=$(extern-post-js.js) \ 275 --extern-pre-js=$(sqlite3-license-version.js) 276pre-post-jses.deps := $(post-js.js) \ 277 $(extern-post-js.js) $(extern-pre-js.js) $(sqlite3-license-version.js) 278$(sqlite3-license-version.js): $(sqlite3.h) $(sqlite3-license-version-header.js) $(MAKEFILE) 279 @echo "Making $@..."; { \ 280 cat $(sqlite3-license-version-header.js); \ 281 echo '/*'; \ 282 echo '** This code was built from sqlite3 version...'; \ 283 echo "** "; \ 284 awk -e '/define SQLITE_VERSION/{$$1=""; print "**" $$0}' \ 285 -e '/define SQLITE_SOURCE_ID/{$$1=""; print "**" $$0}' $(sqlite3.h); \ 286 echo '*/'; \ 287 } > $@ 288 289######################################################################## 290# call-make-pre-js creates rules for pre-js-$(1).js. $1 = the base 291# name of the JS file on whose behalf this pre-js is for. 292define call-make-pre-js 293pre-post-$(1).flags ?= 294pre-js-$(1).js: $$(pre-js.js) $$(MAKEFILE) 295 cp $$(pre-js.js) $$@ 296 echo "Module[xInstantiateWasm].uri = '$(1).wasm';" >> $$@ 297CLEAN_FILES += pre-js-$(1).js 298pre-post-$(1).deps := $$(pre-post-jses.deps) pre-js-$(1).js 299pre-post-$(1).flags += --pre-js=pre-js-$(1).js 300endef 301#$(error $(call call-make-pre-js,sqlite3-wasmfs)) 302# /post-js and pre-js 303######################################################################## 304 305######################################################################## 306# emcc flags for .c/.o/.wasm/.js. 307emcc.flags = 308#emcc.flags += -v # _very_ loud but also informative about what it's doing 309# -g is needed to keep -O2 and higher from creating broken JS via 310# minification. 311 312######################################################################## 313# emcc flags for .c/.o. 314emcc.cflags := 315emcc.cflags += -std=c99 -fPIC 316# -------------^^^^^^^^ we currently need c99 for WASM-specific sqlite3 APIs. 317emcc.cflags += -I. -I$(dir.top) 318 319######################################################################## 320# emcc flags specific to building the final .js/.wasm file... 321emcc.jsflags := -fPIC 322emcc.jsflags += --minify 0 323emcc.jsflags += --no-entry 324emcc.jsflags += -sMODULARIZE 325emcc.jsflags += -sSTRICT_JS 326emcc.jsflags += -sDYNAMIC_EXECUTION=0 327emcc.jsflags += -sNO_POLYFILL 328emcc.jsflags += -sEXPORTED_FUNCTIONS=@$(EXPORTED_FUNCTIONS.api) 329emcc.exportedRuntimeMethods := \ 330 -sEXPORTED_RUNTIME_METHODS=FS,wasmMemory 331 # FS ==> stdio/POSIX I/O proxies 332 # wasmMemory ==> required by our code for use with -sIMPORTED_MEMORY 333emcc.jsflags += $(emcc.exportedRuntimeMethods) 334emcc.jsflags += -sUSE_CLOSURE_COMPILER=0 335emcc.jsflags += -sIMPORTED_MEMORY 336emcc.environment := -sENVIRONMENT=web,worker 337emcc.jsflags += -sALLOW_MEMORY_GROWTH 338# emcc: warning: USE_PTHREADS + ALLOW_MEMORY_GROWTH may run non-wasm code 339# slowly, see https://github.com/WebAssembly/design/issues/1271 340# [-Wpthreads-mem-growth] 341emcc.jsflags += -sINITIAL_MEMORY=13107200 342#emcc.jsflags += -sINITIAL_MEMORY=64225280 343# ^^^^ 64MB is not enough for WASMFS/OPFS test runs using batch-runner.js 344emcc.jsflags += $(emcc.environment) 345#emcc.jsflags += -sTOTAL_STACK=4194304 346 347sqlite3.js.init-func := sqlite3InitModule 348# ^^^^ $(sqlite3.js.init-func) symbol name is hard-coded in $(extern-post-js.js) 349 350emcc.jsflags += -sEXPORT_NAME=$(sqlite3.js.init-func) 351emcc.jsflags += -sGLOBAL_BASE=4096 # HYPOTHETICALLY keep func table indexes from overlapping w/ heap addr. 352#emcc.jsflags += -sSTRICT # fails due to missing __syscall_...() 353#emcc.jsflags += -sALLOW_UNIMPLEMENTED_SYSCALLS 354#emcc.jsflags += -sFILESYSTEM=0 # only for experimentation. sqlite3 needs the FS API 355#emcc.jsflags += -sABORTING_MALLOC 356emcc.jsflags += -sALLOW_TABLE_GROWTH 357emcc.jsflags += -Wno-limited-postlink-optimizations 358# ^^^^^ it likes to warn when we have "limited optimizations" via the -g3 flag. 359#emcc.jsflags += -sSTANDALONE_WASM # causes OOM errors, not sure why 360# https://lld.llvm.org/WebAssembly.html 361emcc.jsflags += -sERROR_ON_UNDEFINED_SYMBOLS=0 362emcc.jsflags += -sLLD_REPORT_UNDEFINED 363#emcc.jsflags += --allow-undefined 364#emcc.jsflags += --import-undefined 365#emcc.jsflags += --unresolved-symbols=import-dynamic --experimental-pic 366#emcc.jsflags += --experimental-pic --unresolved-symbols=ingore-all --import-undefined 367#emcc.jsflags += --unresolved-symbols=ignore-all 368emcc.jsflags += -sWASM_BIGINT=$(emcc_enable_bigint) 369# ^^^^ MEMORY64=1 fails to load, erroring with: 370# invalid memory limits flags 0x5 371# (enable via --experimental-wasm-memory64) 372# 373# ^^^^ MEMORY64=2 builds and loads but dies when we do things like: 374# 375# new Uint8Array(heapWrappers().HEAP8U.buffer, ptr, n) 376# 377# because ptr is now a BigInt, so is invalid for passing to arguments 378# which have strict must-be-a-Number requirements. 379######################################################################## 380 381 382######################################################################## 383# -sSINGLE_FILE: 384# https://github.com/emscripten-core/emscripten/blob/main/src/settings.js#L1704 385# -sSINGLE_FILE=1 would be really nice but we have to build with -g 386# for -O2 and higher to work (else minification breaks the code) and 387# cannot wasm-strip the binary before it gets encoded into the JS 388# file. The result is that the generated JS file is, because of the -g 389# debugging info, _huge_. 390######################################################################## 391 392sqlite3.js := $(dir.dout)/sqlite3.js 393sqlite3.wasm := $(dir.dout)/sqlite3.wasm 394sqlite3-wasm.c := $(dir.api)/sqlite3-wasm.c 395# sqlite3-wasm.o vs sqlite3-wasm.c: building against the latter 396# (predictably) results in a slightly faster binary, but we're close 397# enough to the target speed requirements that the 500ms makes a 398# difference. Thus we build all binaries against sqlite3-wasm.c 399# instead of building a shared copy of sqlite3-wasm.o. 400$(eval $(call call-make-pre-js,sqlite3)) 401$(sqlite3.js): 402$(sqlite3.js): $(MAKEFILE) $(sqlite3.wasm.obj) \ 403 $(EXPORTED_FUNCTIONS.api) \ 404 $(pre-post-sqlite3.deps) 405 @echo "Building $@ ..." 406 $(emcc.bin) -o $@ $(emcc_opt_full) $(emcc.flags) \ 407 $(emcc.jsflags) $(pre-post-common.flags) $(pre-post-sqlite3.flags) \ 408 $(cflags.common) $(SQLITE_OPT) $(sqlite3-wasm.c) 409 chmod -x $(sqlite3.wasm) 410 $(maybe-wasm-strip) $(sqlite3.wasm) 411 @ls -la $@ $(sqlite3.wasm) 412$(sqlite3.wasm): $(sqlite3.js) 413CLEAN_FILES += $(sqlite3.js) $(sqlite3.wasm) 414all: $(sqlite3.js) 415wasm: $(sqlite3.js) 416# End main Emscripten-based module build 417######################################################################## 418 419######################################################################## 420# batch-runner.js... 421dir.sql := sql 422speedtest1 := ../../speedtest1 423speedtest1.c := ../../test/speedtest1.c 424speedtest1.sql := $(dir.sql)/speedtest1.sql 425speedtest1.cliflags := --size 25 --big-transactions 426$(speedtest1): 427 $(MAKE) -C ../.. speedtest1 428$(speedtest1.sql): $(speedtest1) $(MAKEFILE) 429 $(speedtest1) $(speedtest1.cliflags) --script $@ 430batch-runner.list: $(MAKEFILE) $(speedtest1.sql) $(dir.sql)/000-mandelbrot.sql 431 bash split-speedtest1-script.sh $(dir.sql)/speedtest1.sql 432 ls -1 $(dir.sql)/*.sql | grep -v speedtest1.sql | sort > $@ 433clean-batch: 434 rm -f batch-runner.list $(dir.sql)/speedtest1*.sql 435# ^^^ we don't do this along with 'clean' because we clean/rebuild on 436# a regular basis with different -Ox flags and rebuilding the batch 437# pieces each time is an unnecessary time sink. 438batch: batch-runner.list 439all: batch 440# end batch-runner.js 441######################################################################## 442# speedtest1.js... 443# speedtest1-common.eflags = emcc flags used by multiple builds of speedtest1 444# speedtest1.eflags = emcc flags used by main build of speedtest1 445speedtest1-common.eflags := $(emcc_opt_full) 446speedtest1.eflags := 447speedtest1.eflags += -sENVIRONMENT=web 448speedtest1-common.eflags += -sINVOKE_RUN=0 449speedtest1-common.eflags += --no-entry 450#speedtest1-common.eflags += -flto 451speedtest1-common.eflags += -sABORTING_MALLOC 452speedtest1-common.eflags += -sINITIAL_MEMORY=128450560 453speedtest1-common.eflags += -sSTRICT_JS 454speedtest1-common.eflags += -sMODULARIZE 455speedtest1-common.eflags += -Wno-limited-postlink-optimizations 456EXPORTED_FUNCTIONS.speedtest1 := $(abspath $(dir.tmp)/EXPORTED_FUNCTIONS.speedtest1) 457speedtest1-common.eflags += -sEXPORTED_FUNCTIONS=@$(EXPORTED_FUNCTIONS.speedtest1) 458speedtest1-common.eflags += $(emcc.exportedRuntimeMethods) 459speedtest1-common.eflags += -sALLOW_TABLE_GROWTH 460speedtest1-common.eflags += -sDYNAMIC_EXECUTION=0 461speedtest1-common.eflags += --minify 0 462speedtest1-common.eflags += -sEXPORT_NAME=$(sqlite3.js.init-func) 463speedtest1-common.eflags += -sWASM_BIGINT=$(emcc_enable_bigint) 464speedtest1-common.eflags += $(pre-post-common.flags) 465speedtest1.exit-runtime0 := -sEXIT_RUNTIME=0 466speedtest1.exit-runtime1 := -sEXIT_RUNTIME=1 467# Re -sEXIT_RUNTIME=1 vs 0: if it's 1 and speedtest1 crashes, we get 468# this error from emscripten: 469# 470# > native function `free` called after runtime exit (use 471# NO_EXIT_RUNTIME to keep it alive after main() exits)) 472# 473# If it's 0 and it crashes, we get: 474# 475# > stdio streams had content in them that was not flushed. you should 476# set EXIT_RUNTIME to 1 (see the FAQ), or make sure to emit a newline 477# when you printf etc. 478# 479# and pending output is not flushed because it didn't end with a 480# newline (by design). The lesser of the two evils seems to be 481# -sEXIT_RUNTIME=1 but we need EXIT_RUNTIME=0 for the worker-based app 482# which runs speedtest1 multiple times. 483 484$(EXPORTED_FUNCTIONS.speedtest1): $(EXPORTED_FUNCTIONS.api) 485 @echo "Making $@ ..." 486 @{ echo _wasm_main; cat $(EXPORTED_FUNCTIONS.api); } > $@ 487speedtest1.js := $(dir.dout)/speedtest1.js 488speedtest1.wasm := $(subst .js,.wasm,$(speedtest1.js)) 489speedtest1.cflags := $(cflags.common) -DSQLITE_SPEEDTEST1_WASM 490speedtest1.cses := $(speedtest1.c) $(sqlite3-wasm.c) 491$(eval $(call call-make-pre-js,speedtest1)) 492$(speedtest1.js): $(MAKEFILE) $(speedtest1.cses) \ 493 $(pre-post-speedtest1.deps) \ 494 $(EXPORTED_FUNCTIONS.speedtest1) 495 @echo "Building $@ ..." 496 $(emcc.bin) \ 497 $(speedtest1.eflags) $(speedtest1-common.eflags) $(speedtest1.cflags) \ 498 $(pre-post-speedtest1.flags) \ 499 $(SQLITE_OPT) \ 500 $(speedtest1.exit-runtime0) \ 501 -o $@ $(speedtest1.cses) -lm 502 $(maybe-wasm-strip) $(speedtest1.wasm) 503 ls -la $@ $(speedtest1.wasm) 504 505speedtest1: $(speedtest1.js) 506all: speedtest1 507CLEAN_FILES += $(speedtest1.js) $(speedtest1.wasm) 508# end speedtest1.js 509######################################################################## 510 511######################################################################## 512# fiddle_remote is the remote destination for the fiddle app. It 513# must be a [user@]HOST:/path for rsync. 514# Note that the target "should probably" contain a symlink of 515# index.html -> fiddle.html. 516fiddle_remote ?= 517ifeq (,$(fiddle_remote)) 518ifneq (,$(wildcard /home/stephan)) 519 fiddle_remote = wh:www/wh/sqlite3/. 520else ifneq (,$(wildcard /home/drh)) 521 #fiddle_remote = if appropriate, add that user@host:/path here 522endif 523endif 524$(fiddle_files): default 525push-fiddle: $(fiddle_files) 526 @if [ x = "x$(fiddle_remote)" ]; then \ 527 echo "fiddle_remote must be a [user@]HOST:/path for rsync"; \ 528 exit 1; \ 529 fi 530 rsync -va fiddle/ $(fiddle_remote) 531# end fiddle remote push 532######################################################################## 533 534######################################################################## 535# Convenience rules to rebuild with various -Ox levels. Much 536# experimentation shows -O2 to be the clear winner in terms of speed. 537# Note that build times with anything higher than -O0 are somewhat 538# painful. 539 540.PHONY: o0 o1 o2 o3 os oz 541o-xtra := -flto 542# ^^^^ -flto can have a considerably performance boost at -O0 but 543# doubles the build time and seems to have negligible effect on 544# higher optimization levels. 545o0: clean 546 $(MAKE) -e "emcc_opt=-O0 $(o-xtra)" 547o1: clean 548 $(MAKE) -e "emcc_opt=-O1 $(o-xtra)" 549o2: clean 550 $(MAKE) -e "emcc_opt=-O2 $(o-xtra)" 551o3: clean 552 $(MAKE) -e "emcc_opt=-O3 $(o-xtra)" 553os: clean 554 @echo "WARNING: -Os can result in a build with mysteriously missing pieces!" 555 $(MAKE) -e "emcc_opt=-Os $(o-xtra)" 556oz: clean 557 $(MAKE) -e "emcc_opt=-Oz $(o-xtra)" 558 559######################################################################## 560# Sub-makes... 561 562include fiddle.make 563 564ifneq (,$(filter wasmfs,$(MAKECMDGOALS))) 565# wasmfs build disabled 2022-10-19 per /chat 566# discussion. OPFS-over-wasmfs was initially a stopgap measure and a 567# convenient point of comparison for the OPFS sqlite3_vfs's 568# performance, but it currently doubles our deliverables for very 569# little, if any, benefit. 570# 571######################################################################## 572# Some platforms do not support the WASMFS build. Raspberry Pi OS is one 573# of them. As such platforms are discovered, add their (uname -m) name 574# to PLATFORMS_WITH_NO_WASMFS to exclude the wasmfs build parts. 575PLATFORMS_WITH_NO_WASMFS := aarch64 # add any others here 576THIS_ARCH := $(shell /usr/bin/uname -m) 577ifneq (,$(filter $(THIS_ARCH),$(PLATFORMS_WITH_NO_WASMFS))) 578$(info This platform does not support the WASMFS build.) 579HAVE_WASMFS := 0 580else 581HAVE_WASMFS := 1 582include wasmfs.make 583endif 584endif 585# /wasmfs 586######################################################################## 587 588######################################################################## 589# Create deliverables: 590ifneq (,$(filter dist,$(MAKECMDGOALS))) 591include dist.make 592endif 593 594######################################################################## 595# Push files to public wasm-testing.sqlite.org server 596wasm-testing.include = *.wasm *.js *.html \ 597 batch-runner.list sql common fiddle jaccwabyt 598wasm-testing.exclude = sql/speedtest1.sql 599wasm-testing.dir = /jail/sites/wasm-testing 600wasm-testing.dest ?= wasm-testing:$(wasm-testing.dir) 601# ---------------------^^^^^^^^^^^^ ssh alias 602push: 603 rsync -z -e ssh --ignore-times --chown=stephan:www-data --group -r \ 604 $(patsubst %,--exclude=%,$(wasm-testing.exclude)) \ 605 $(wasm-testing.include) $(wasm-testing.dest) 606 ssh wasm-testing 'cd $(wasm-testing.dir) && bash .gzip' || \ 607 echo "SSH failed: it's likely that stale content will be served via old gzip files." 608