$(TCC) -shared -o $@ sqlite3.def \
-Wl,"--strip-all" $(REAL_LIBOBJ)
-
#
-# fiddle/wasm section
-#
-# Maintenance reminder: we can/should move this into the wasm-specific
-# GNU Make makefile, but we currently need it here for access to
-# $(SHELL_OPT). The rest of the wasm-related bits are handled via GNU
-# Make in ext/wasm/...
-#
-wasm_dir = ext/wasm
-wasm_dir_abs = $(TOP)/ext/wasm
-# ^^^ some emcc opts require absolute paths
-fiddle_dir = $(wasm_dir)/fiddle
-fiddle_dir_abs = $(TOP)/$(fiddle_dir)
-fiddle_module_js = $(fiddle_dir)/fiddle-module.js
-sqlite3_wasm_c = $(wasm_dir)/api/sqlite3-wasm.c
-$(sqlite3_wasm_c): sqlite3.c
-#emcc_opt = -O0
-#emcc_opt = -O1
-#emcc_opt = -O2
-#emcc_opt = -O3
-emcc_opt = -Oz
-emcc_environment = web
-# WASMFS/OPFS currently (2022-08-23) does not work with fiddle
-# because (A) fiddle is primarily implemented as a Worker and (B) the
-# Emscripten-based Worker loading process does not properly handle the
-# case of nested Workers (necessary for it to load the WASMFS-specific
-# Worker thread).
-emcc_flags_wasmfs =
-# To enable WASMFS/OPFS, uncomment these options:
-#emcc_flags_wasmfs += -sWASMFS -pthread
-#emcc_environment = web,worker
-#emcc_flags_wasmfs += -DSQLITE_WASM_OPFS
-#emcc_flags_wasmfs += -sPTHREAD_POOL_SIZE=2
-#emcc_flags_wasmfs += -sPTHREAD_POOL_SIZE_STRICT=2
-# (Thread pool settings may require tweaking.)
-#/end of WASMFS/OPFS options.
-emcc_flags = $(emcc_opt) \
- -sALLOW_TABLE_GROWTH \
- -sABORTING_MALLOC \
- -sSTRICT_JS \
- -sENVIRONMENT=$(emcc_environment) \
- -sMODULARIZE \
- -sEXPORTED_RUNTIME_METHODS=@$(wasm_dir_abs)/EXPORTED_RUNTIME_METHODS.fiddle \
- -sDYNAMIC_EXECUTION=0 \
- --minify 0 \
- -I. $(SHELL_OPT) \
- -DSQLITE_THREADSAFE=0 \
- -DSQLITE_TEMP_STORE=3 \
- -DSQLITE_OMIT_UTF16 \
- -DSQLITE_OMIT_DEPRECATED \
- -DSQLITE_OMIT_SHARED_CACHE \
- '-DSQLITE_DEFAULT_UNIX_VFS="unix-none"' \
- $(emcc_flags_wasmfs)
-$(fiddle_module_js): Makefile $(sqlite3_wasm_c) shell.c \
- $(wasm_dir)/EXPORTED_RUNTIME_METHODS.fiddle \
- $(wasm_dir)/EXPORTED_FUNCTIONS.fiddle
- emcc -o $@ $(emcc_flags) \
- -sEXPORT_NAME=initFiddleModule \
- -sEXPORTED_FUNCTIONS=@$(wasm_dir_abs)/EXPORTED_FUNCTIONS.fiddle \
- -DSQLITE_SHELL_FIDDLE \
- $(sqlite3_wasm_c) shell.c
- gzip < $@ > $@.gz
- gzip < $(fiddle_dir)/fiddle-module.wasm > $(fiddle_dir)/fiddle-module.wasm.gz
-$(fiddle_dir)/fiddle.js.gz: $(fiddle_dir)/fiddle.js
- gzip < $< > $@
-
-fiddle_generated = $(fiddle_module_js) $(fiddle_module_js).gz \
- $(fiddle_dir)/fiddle-module.wasm \
- $(fiddle_dir)/fiddle-module.wasm.gz \
- $(fiddle_dir)/fiddle.js.gz
-
-clean-fiddle:
- rm -f $(fiddle_generated)
-clean: clean-fiddle
-fiddle: $(fiddle_module_js) $(fiddle_dir)/fiddle.js.gz
-wasm: fiddle
-########################################################################
-# Explanation of the emcc build flags follows. Full docs for these can
-# be found at:
-#
-# https://github.com/emscripten-core/emscripten/blob/main/src/settings.js
-#
-# -sENVIRONMENT=web: elides bootstrap code related to non-web JS
-# environments like node.js. Removing this makes the output a tiny
-# tick larger but hypothetically makes it more portable to
-# non-browser JS environments.
-#
-# -sMODULARIZE: changes how the generated code is structured to avoid
-# declaring a global Module object and instead installing a function
-# which loads and initializes the module. The function is named...
-#
-# -sEXPORT_NAME=jsFunctionName (see -sMODULARIZE)
-#
-# -sEXPORTED_RUNTIME_METHODS=@/absolute/path/to/file: a file
-# containing a list of emscripten-supplied APIs, one per line, which
-# must be exported into the generated JS. Must be an absolute path!
-#
-# -sEXPORTED_FUNCTIONS=@/absolute/path/to/file: a file containing a
-# list of C functions, one per line, which must be exported via wasm
-# so they're visible to JS. C symbols names in that file must all
-# start with an underscore for reasons known only to the emcc
-# developers. e.g., _sqlite3_open_v2 and _sqlite3_finalize. Must be
-# an absolute path!
-#
-# -sSTRICT_JS ensures that the emitted JS code includes the 'use
-# strict' option. Note that -sSTRICT is more broadly-scoped and
-# results in build errors.
-#
-# -sALLOW_TABLE_GROWTH is required for (at a minimum) the UDF-binding
-# feature. Without it, JS functions cannot be made to proxy C-side
-# callbacks.
-#
-# -sABORTING_MALLOC causes the JS-bound _malloc() to abort rather than
-# return 0 on OOM. If set to 0 then all code which uses _malloc()
-# must, just like in C, check the result before using it, else
-# they're likely to corrupt the JS/WASM heap by writing to its
-# address of 0. It is, as of this writing, enabled in Emscripten by
-# default but we enable it explicitly in case that default changes.
-#
-# -sDYNAMIC_EXECUTION=0 disables eval() and the Function constructor.
-# If the build runs without these, it's preferable to use this flag
-# because certain execution environments disallow those constructs.
-# This flag is not strictly necessary, however.
-#
-# -sWASM_BIGINT is UNTESTED but "should" allow the int64-using C APIs
-# to work with JS/wasm, insofar as the JS environment supports the
-# BigInt type. That support requires an extremely recent browser:
-# Safari didn't get that support until late 2020.
-#
-# --no-entry: for compiling library code with no main(). If this is
-# not supplied and the code has a main(), it is called as part of the
-# module init process. Note that main() is #if'd out of shell.c
-# (renamed) when building in wasm mode.
-#
-# --pre-js/--post-js=FILE relative or absolute paths to JS files to
-# prepend/append to the emcc-generated bootstrapping JS. It's
-# easier/faster to develop with separate JS files (reduces rebuilding
-# requirements) but certain configurations, namely -sMODULARIZE, may
-# require using at least a --pre-js file. They can be used
-# individually and need not be paired.
-#
-# -O0..-O3 and -Oz: optimization levels affect not only C-style
-# optimization but whether or not the resulting generated JS code
-# gets minified. -O0 compiles _much_ more quickly than -O3 or -Oz,
-# and doesn't minimize any JS code, so is recommended for
-# development. -O3 or -Oz are recommended for deployment, but
-# primarily because -Oz will shrink the wasm file notably. JS-side
-# minification makes little difference in terms of overall
-# distributable size.
-#
-# --minify 0: disables minification of the generated JS code,
-# regardless of optimization level. Minification of the JS has
-# minimal overall effect in the larger scheme of things and results
-# in JS files which can neither be edited nor viewed as text files in
-# Fossil (which flags them as binary because of their extreme line
-# lengths). Interestingly, whether or not the comments in the
-# generated JS file get stripped is unaffected by this setting and
-# depends entirely on the optimization level. Higher optimization
-# levels reduce the size of the JS considerably even without
-# minification.
-#
-########################################################################
+# Fiddle app
+#
+fiddle: sqlite3.c shell.c
+ make -C ext/wasm fiddle
-# This GNU makefile exists primarily to simplify/speed up development
-# of the sqlite3 WASM components. It is not part of the canonical
-# build process.
-#
-# Maintenance notes: the fiddle build is currently performed in the
-# top-level ../../Makefile.in. It may be moved into this file at some
-# point, as GNU Make has been deemed acceptable for the WASM-related
-# components (whereas POSIX Make is required for the more conventional
-# components).
+########################################################################
+# This GNU makefile drives the build of the sqlite3 WASM
+# components. It is not part of the canonical build process.
+########################################################################
SHELL := $(shell which bash 2>/dev/null)
+MAKEFILE := $(lastword $(MAKEFILE_LIST))
all:
-emcc_opt ?= -O0
+release: all
-.PHONY: fiddle
-ifneq (,$(wildcard /home/stephan))
- fiddle_opt ?= $(emcc_opt)
-else
- fiddle_opt = -Os
+# Emscripten SDK home dir and related binaries...
+EMSDK_HOME ?= $(word 1,$(wildcard $(HOME)/src/emsdk $(HOME)/emsdk))
+emcc.bin ?= $(word 1,$(wildcard $(shell which emcc) $(EMSDK_HOME)/upstream/emscripten/emcc))
+ifeq (,$(emcc.bin))
+ $(error Cannot find emcc.)
endif
-fiddle:
- $(MAKE) -C ../.. fiddle -e emcc_opt=$(fiddle_opt)
-all: fiddle
-clean:
- $(MAKE) -C ../../ clean-fiddle
- -rm -f $(CLEAN_FILES)
+wasm-strip ?= $(shell which wasm-strip 2>/dev/null)
+ifeq (,$(filter clean,$(MAKECMDGOALS)))
+ifeq (,$(wasm-strip))
+ $(info WARNING: *******************************************************************)
+ $(info WARNING: builds using -O2/-O3/-Os/-Oz will minify WASM-exported names,)
+ $(info WARNING: breaking _All The Things_. The workaround for that is to build)
+ $(info WARNING: with -g3 (which explodes the file size) and then strip the debug)
+ $(info WARNING: info after compilation, using wasm-strip, to shrink the wasm file.)
+ $(info WARNING: wasm-strip was not found in the PATH so we cannot strip those.)
+ $(info WARNING: If this build uses any optimization level higher than -O1 then)
+ $(info WARNING: the ***resulting WASM binary WILL NOT BE USABLE***.)
+ $(info WARNING: wasm-strip is part of the wabt package:)
+ $(info WARNING: https://github.com/WebAssembly/wabt)
+ $(info WARNING: on Ubuntu-like systems it can be installed with:)
+ $(info WARNING: sudo apt install wabt)
+ $(info WARNING: *******************************************************************)
+endif
+endif # 'make clean' check
+
+ifeq (,$(wasm-strip))
+ maybe-wasm-strip = echo "not wasm-stripping"
+else
+ maybe-wasm-strip = $(wasm-strip)
+endif
-MAKEFILE := $(lastword $(MAKEFILE_LIST))
dir.top := ../..
# Reminder: some Emscripten flags require absolute paths
dir.wasm := $(patsubst %/,%,$(dir $(abspath $(MAKEFILE))))
dir.api := api
dir.jacc := jaccwabyt
dir.common := common
+dir.fiddle := fiddle
CLEAN_FILES := *~ $(dir.jacc)/*~ $(dir.api)/*~ $(dir.common)/*~
-
sqlite3.c := $(dir.top)/sqlite3.c
-$(sqlite3.c):
- $(MAKE) -C $(dir.top) sqlite3.c
-
SQLITE_OPT = \
-DSQLITE_ENABLE_FTS4 \
-DSQLITE_ENABLE_RTREE \
-DSQLITE_OMIT_SHARED_CACHE \
-DSQLITE_THREADSAFE=0 \
-DSQLITE_TEMP_STORE=3 \
- -DSQLITE_OS_KV_OPTIONAL=1
+ -DSQLITE_OS_KV_OPTIONAL=1 \
+ '-DSQLITE_DEFAULT_UNIX_VFS="unix-none"'
#SQLITE_OPT += -DSQLITE_ENABLE_MEMSYS5
# ^^^ MEMSYS5 is hypothetically useful for non-Emscripten builds but
# requires adding more infrastructure and fixing one spot in the
# SQLITE_OMIT_LOAD_EXTENSION: if this is true, sqlite3_vfs::xDlOpen
# and friends may be NULL.
-.PHONY: release
-release:
- $(MAKE) "emcc_opt=-Os -g3 -flto" fiddle_opt=-Os
-# ^^^^^ target-specific vars, e.g.:
-# release: emcc_opt=...
-# apparently only work for file targets, not PHONY targets?
-#
+ifneq (,$(filter release,$(MAKECMDGOALS)))
+emcc_opt ?= -Oz -g3 -flto
+else
+emcc_opt ?= -O0 -g
+# ^^^^ build times for -O levels higher than 0 are painful at
+# dev-time.
+endif
# ^^^ -flto improves runtime speed at -O0 considerably but doubles
# build time.
#
# difficult to say whether -Os gives any speed benefit over -Oz.
########################################################################
-# Emscripten SDK home dir and related binaries...
-EMSDK_HOME ?= $(word 1,$(wildcard $(HOME)/src/emsdk $(HOME)/emsdk))
-emcc.bin ?= $(word 1,$(wildcard $(shell which emcc) $(EMSDK_HOME)/upstream/emscripten/emcc))
-ifeq (,$(emcc.bin))
- $(error Cannot find emcc.)
-endif
-
-wasm-strip ?= $(shell which wasm-strip 2>/dev/null)
-ifeq (,$(filter clean,$(MAKECMDGOALS)))
-ifeq (,$(wasm-strip))
- $(info WARNING: *******************************************************************)
- $(info WARNING: builds using -O2/-O3/-Os/-Oz will minify WASM-exported names,)
- $(info WARNING: breaking _All The Things_. The workaround for that is to build)
- $(info WARNING: with -g3 (which explodes the file size) and then strip the debug)
- $(info WARNING: info after compilation, using wasm-strip, to shrink the wasm file.)
- $(info WARNING: wasm-strip was not found in the PATH so we cannot strip those.)
- $(info WARNING: If this build uses any optimization level higher than -O1 then)
- $(info WARNING: the ***resulting WASM binary WILL NOT BE USABLE***.)
- $(info WARNING: wasm-strip is part of the wabt package:)
- $(info WARNING: https://github.com/WebAssembly/wabt)
- $(info WARNING: on Ubuntu-like systems it can be installed with:)
- $(info WARNING: sudo apt install wabt)
- $(info WARNING: *******************************************************************)
-endif
-endif # 'make clean' check
+$(sqlite3.c):
+ $(MAKE) -C $(dir.top) sqlite3.c
-ifeq (,$(wasm-strip))
- maybe-wasm-strip = echo "not wasm-stripping"
-else
- maybe-wasm-strip = $(wasm-strip)
-endif
+clean:
+ -rm -f $(CLEAN_FILES)
ifeq (release,$(filter release,$(MAKECMDGOALS)))
ifeq (,$(wasm-strip))
#emcc.flags += -v # _very_ loud but also informative about what it's doing
# -g is needed to keep -O2 and higher from creating broken JS via
# minification.
-emcc.flags += -g
########################################################################
# emcc flags for .c/.o.
emcc.cflags :=
emcc.cflags += -std=c99 -fPIC
# -------------^^^^^^^^ we currently need c99 for WASM-specific sqlite3 APIs.
-emcc.cflags += -I. -I$(dir.top) # $(SQLITE_OPT)
+emcc.cflags += -I. -I$(dir.top)
########################################################################
# emcc flags specific to building the final .js/.wasm file...
$(speedtest1.eflags) $(speedtest1-common.eflags) $(speedtest1.cflags) \
$(SQLITE_OPT) \
$(speedtest1.exit-runtime0) \
- '-DSQLITE_DEFAULT_UNIX_VFS="unix-none"' \
-o $@ $(speedtest1.cs) -lm
$(maybe-wasm-strip) $(speedtest1.wasm)
ls -la $@ $(speedtest1.wasm)
########################################################################
# Sub-makes...
+include fiddle.make
+
########################################################################
# Some platforms do not support the WASMFS build. Raspberry Pi OS is one
# of them. As such platforms are discovered, add their (uname -m) name
else
include wasmfs.make
endif
+
+########################################################################
+# Push files to public wasm-testing.sqlite.org server
+wasm-testing.include = *.wasm *.js *.html \
+ batch-runner.list sql common fiddle jaccwabyt
+wasm-testing.exclude = sql/speedtest1.sql
+wasm-testing.dir = /jail/sites/wasm-testing
+wasm-testing.dest ?= wasm-testing:$(wasm-testing.dir)
+# ---------------------^^^^^^^^^^^^ ssh alias
+push:
+ rsync -z -e ssh --ignore-times --chown=stephan:www-data --group -r \
+ $(patsubst %,--exclude=%,$(wasm-testing.exclude)) \
+ $(wasm-testing.include) $(wasm-testing.dest)
+ ssh wasm-testing 'cd $(wasm-testing.dir) && bash .gzip' || \
+ echo "SSH failed: it's likely that stale content will be served via old gzip files."
+
if(!Module.postRun) Module.postRun = [];
Module.postRun.push(function(Module/*the Emscripten-style module object*/){
'use strict';
- /* This function will contain:
+ /* This function will contain at least the following:
- post-js-header.js (this file)
- sqlite3-api-prologue.js => Bootstrapping bits to attach the rest to
- - sqlite3-api-whwasmutil.js => Replacements for much of Emscripten's glue
- - sqlite3-api-jaccwabyt.js => Jaccwabyt (C/JS struct binding)
+ - common/whwasmutil.js => Replacements for much of Emscripten's glue
+ - jaccwaby/jaccwabyt.js => Jaccwabyt (C/JS struct binding)
- sqlite3-api-glue.js => glues previous parts together
- - sqlite3-api-oo.js => SQLite3 OO API #1.
- - sqlite3-api-worker.js => Worker-based API
+ - sqlite3-api-oo.js => SQLite3 OO API #1
+ - sqlite3-api-worker1.js => Worker-based API
+ - sqlite3-api-opfs.js => OPFS VFS
- sqlite3-api-cleanup.js => final API cleanup
- post-js-footer.js => closes this postRun() function
-
- Whew!
*/
--- /dev/null
+#!/do/not/make
+#^^^ help emacs select edit mode
+#
+# Intended to include'd by ./GNUmakefile.
+#######################################################################
+MAKEFILE.fiddle := $(lastword $(MAKEFILE_LIST))
+
+########################################################################
+# shell.c and its build flags...
+make-np-0 := make -C $(dir.top) -n -p
+make-np-1 := sed -e 's/(TOP)/(dir.top)/g'
+$(eval $(shell $(make-np-0) | grep -e '^SHELL_OPT ' | $(make-np-1)))
+$(eval $(shell $(make-np-0) | grep -e '^SHELL_SRC ' | $(make-np-1)))
+# ^^^ can't do that in 1 invocation b/c newlines get stripped
+ifeq (,$(SHELL_OPT))
+$(error Could not parse SHELL_OPT from $(dir.top)/Makefile.)
+endif
+ifeq (,$(SHELL_SRC))
+$(error Could not parse SHELL_SRC from $(dir.top)/Makefile.)
+endif
+$(dir.top)/shell.c: $(SHELL_SRC) $(dir.top)/tool/mkshellc.tcl
+ $(MAKE) -C $(dir.top) shell.c
+# /shell.c
+########################################################################
+
+fiddle.emcc-flags = \
+ $(emcc.cflags) $(emcc_opt) \
+ --minify 0 \
+ -sALLOW_TABLE_GROWTH \
+ -sABORTING_MALLOC \
+ -sSTRICT_JS \
+ -sENVIRONMENT=web,worker \
+ -sMODULARIZE \
+ -sDYNAMIC_EXECUTION=0 \
+ -sEXPORT_NAME=initFiddleModule \
+ -sEXPORTED_RUNTIME_METHODS=@$(dir.wasm)/EXPORTED_RUNTIME_METHODS.fiddle \
+ -sEXPORTED_FUNCTIONS=@$(dir.wasm)/EXPORTED_FUNCTIONS.fiddle \
+ --post-js=$(post-js.js) \
+ $(SQLITE_OPT) $(SHELL_OPT) \
+ -D_POSIX_SOURCE \
+ -DSQLITE_SHELL_FIDDLE
+# -D_POSIX_C_SOURCE is needed for strdup() with emcc
+
+fiddle.EXPORTED_FUNCTIONS.in := \
+ EXPORTED_FUNCTIONS.fiddle.in \
+ EXPORTED_FUNCTIONS.api
+
+EXPORTED_FUNCTIONS.fiddle: $(fiddle.EXPORTED_FUNCTIONS.in) $(MAKEFILE.fiddle)
+ grep -h -v jaccwabyt $(fiddle.EXPORTED_FUNCTIONS.in) | sort -u > $@
+
+fiddle-module.js := $(dir.fiddle)/fiddle-module.js
+fiddle-module.wasm := $(subst .js,.wasm,$(fiddle-module.js))
+fiddle.cs := $(dir.top)/shell.c $(sqlite3-wasm.c)
+
+$(fiddle-module.js): $(MAKEFILE) $(MAKEFILE.fiddle) \
+ EXPORTED_FUNCTIONS.fiddle EXPORTED_RUNTIME_METHODS.fiddle \
+ $(fiddle.cs) $(post-js.js)
+ $(emcc.bin) -o $@ $(fiddle.emcc-flags) $(fiddle.cs)
+ $(maybe-wasm-strip) $(fiddle-module.wasm)
+ gzip < $@ > $@.gz
+ gzip < $(fiddle-module.wasm) > $(fiddle-module.wasm).gz
+
+$(dir.fiddle)/fiddle.js.gz: $(dir.fiddle)/fiddle.js
+ gzip < $< > $@
+
+clean: clean-fiddle
+clean-fiddle:
+ rm -f $(fiddle-module.js) $(fiddle-module.js).gz \
+ $(fiddle-module.wasm) $(fiddle-module.wasm).gz \
+ EXPORTED_FUNCTIONS.fiddle
+.PHONY: fiddle
+fiddle: $(fiddle-module.js) $(dir.fiddle)/fiddle.js.gz
+all: fiddle
+
+########################################################################
+# Explanation of the emcc build flags follows. Full docs for these can
+# be found at:
+#
+# https://github.com/emscripten-core/emscripten/blob/main/src/settings.js
+#
+# -sENVIRONMENT=web: elides bootstrap code related to non-web JS
+# environments like node.js. Removing this makes the output a tiny
+# tick larger but hypothetically makes it more portable to
+# non-browser JS environments.
+#
+# -sMODULARIZE: changes how the generated code is structured to avoid
+# declaring a global Module object and instead installing a function
+# which loads and initializes the module. The function is named...
+#
+# -sEXPORT_NAME=jsFunctionName (see -sMODULARIZE)
+#
+# -sEXPORTED_RUNTIME_METHODS=@/absolute/path/to/file: a file
+# containing a list of emscripten-supplied APIs, one per line, which
+# must be exported into the generated JS. Must be an absolute path!
+#
+# -sEXPORTED_FUNCTIONS=@/absolute/path/to/file: a file containing a
+# list of C functions, one per line, which must be exported via wasm
+# so they're visible to JS. C symbols names in that file must all
+# start with an underscore for reasons known only to the emcc
+# developers. e.g., _sqlite3_open_v2 and _sqlite3_finalize. Must be
+# an absolute path!
+#
+# -sSTRICT_JS ensures that the emitted JS code includes the 'use
+# strict' option. Note that -sSTRICT is more broadly-scoped and
+# results in build errors.
+#
+# -sALLOW_TABLE_GROWTH is required for (at a minimum) the UDF-binding
+# feature. Without it, JS functions cannot be made to proxy C-side
+# callbacks.
+#
+# -sABORTING_MALLOC causes the JS-bound _malloc() to abort rather than
+# return 0 on OOM. If set to 0 then all code which uses _malloc()
+# must, just like in C, check the result before using it, else
+# they're likely to corrupt the JS/WASM heap by writing to its
+# address of 0. It is, as of this writing, enabled in Emscripten by
+# default but we enable it explicitly in case that default changes.
+#
+# -sDYNAMIC_EXECUTION=0 disables eval() and the Function constructor.
+# If the build runs without these, it's preferable to use this flag
+# because certain execution environments disallow those constructs.
+# This flag is not strictly necessary, however.
+#
+# -sWASM_BIGINT is UNTESTED but "should" allow the int64-using C APIs
+# to work with JS/wasm, insofar as the JS environment supports the
+# BigInt type. That support requires an extremely recent browser:
+# Safari didn't get that support until late 2020.
+#
+# --no-entry: for compiling library code with no main(). If this is
+# not supplied and the code has a main(), it is called as part of the
+# module init process. Note that main() is #if'd out of shell.c
+# (renamed) when building in wasm mode.
+#
+# --pre-js/--post-js=FILE relative or absolute paths to JS files to
+# prepend/append to the emcc-generated bootstrapping JS. It's
+# easier/faster to develop with separate JS files (reduces rebuilding
+# requirements) but certain configurations, namely -sMODULARIZE, may
+# require using at least a --pre-js file. They can be used
+# individually and need not be paired.
+#
+# -O0..-O3 and -Oz: optimization levels affect not only C-style
+# optimization but whether or not the resulting generated JS code
+# gets minified. -O0 compiles _much_ more quickly than -O3 or -Oz,
+# and doesn't minimize any JS code, so is recommended for
+# development. -O3 or -Oz are recommended for deployment, but
+# primarily because -Oz will shrink the wasm file notably. JS-side
+# minification makes little difference in terms of overall
+# distributable size.
+#
+# --minify 0: disables minification of the generated JS code,
+# regardless of optimization level. Minification of the JS has
+# minimal overall effect in the larger scheme of things and results
+# in JS files which can neither be edited nor viewed as text files in
+# Fossil (which flags them as binary because of their extreme line
+# lengths). Interestingly, whether or not the comments in the
+# generated JS file get stripped is unaffected by this setting and
+# depends entirely on the optimization level. Higher optimization
+# levels reduce the size of the JS considerably even without
+# minification.
+#
+########################################################################
sqlite3-wasmfs.cflags += -pthread
sqlite3-wasmfs.cflags += -I. -I.. -I$(dir.top)
sqlite3-wasmfs.cflags += $(SQLITE_OPT) -DSQLITE_WASM_WASMFS
-sqlite3-wasmfs.cflags += '-DSQLITE_DEFAULT_UNIX_VFS="unix-none"'
sqlite3-wasmfs.extra.c :=
ifeq (1,1)
-C Correct\sa\stoo-strict\sis-opfs-available\scheck.
-D 2022-09-20T16:20:35.278
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+D 2022-09-21T08:39:03.936
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# Remove this line to create a well-formed Fossil manifest.
-1b5f1b4a6c1457f98c258459e23e321fc59793de298fecb84031b87f02156cd5
\ No newline at end of file
+113f8204dc4ac849d5632d3de1680b6e0da871e107ef484c8d7273799bee3d88
\ No newline at end of file
projects / thirdparty / sqlite.git / commitdiff
