The export name is now ${TARGET_NAME}Entry. This can also be overridden
by using QT_WASM_EXPORT_NAME, both in CMake and qmake
Change-Id: I59c97ae6e22f0b2720716e9d7eff7b6b13d37ab5
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
This is required when using the preload functionality
from qtloader.
Pick-to: 6.6
Change-Id: Ib1bf8788b87834ba0ff80d563897040e093a16b9
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Unify the settings for single-threaded and multi-threaded builds;
Qt now always enables heap growth by default.
This means we don't have to reserve a large (1GB) fixed memory
size, but can instead set the smaller (50 MB) initial memory size,
like the single-threaded build does.
Enabling threads + memory growth can potentially cause
a performance regression when accessing heap memory from
JavaScript (https://github.com/WebAssembly/design/issues/1271).
We leave it for the application to decide if this applies,
and if the switch to fixed memory should be made.
Change-Id: I96988b072506456685086e55aca4007a146bd70f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Mikołaj Boc <Mikolaj.Boc@qt.io>
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
Developers can add to Emscripten's EXPORT_RUNTIME_METHODS
by defining their own using:
QT_WASM_EXTRA_EXPORTED_METHODS
Which will add on to Qt's default exported runtime methods
of UTF16ToString,stringToUTF16
for cmake:
set_target_properties(<target> PROPERTIES QT_WASM_EXTRA_EXPORTED_METHODS "ccall,cwrap")
or
set(QT_WASM_EXTRA_EXPORTED_METHODS "ccall,cwrap")
for qmake:
QT_WASM_EXTRA_EXPORTED_METHODS = ccall,cwrap
Done-with: Mikolaj Boc
Fixes: QTBUG-104882
Pick-to: 6.4
Change-Id: I9678bdb7b077aaa8527057212ea4e161c0be0b60
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
INITIAL_MEMORY and PTHREAD_POOL_SIZE are linker flags only
USE_PTHREADS is both linker and compiler arguments.
Also increase default INITIAL_MEMORY
Pick-to: 6.3
Change-Id: Id1998efbf1d6de901f404db7e988f6cafd547a39
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Emscripten now warns against passing e.g. “ALLOW_MEMORY_GROWTH”
as a compile option.
Add EMCC_THREAD_CFLAGS, which gets compiler flags only.
Pick-to: 6.3
Change-Id: Ifcf40c45ca75cfdfc98a12e6b9d47f34158b3407
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
Use “-pthreads” instead of “-s USE_PTHREADS=1”. This
is both a compile and linker option.
Pick-to: 6.3
Change-Id: Iaf7cb4ec41577fe596c3e81fda05c03fe0074c08
Reviewed-by: David Skoland <david.skoland@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
-g4 was deprecated in Emscripten 2.0.17, and since we are well past
that version we can safely use -gsource-map instead.
Change-Id: I497155619d6320661f6be0e220b52fa7d6ca0b8e
Reviewed-by: David Skoland <david.skoland@qt.io>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
This breaks the build for qmake-based applications,
with the error
Project ERROR: Could not find feature sse2.
Remove the offending section to make applications
build again.
Pick-to: 6.2
Change-Id: I0b22faa1d8d62e208d79879b822e21637bb03a3e
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Emscripten only supports
SSE1, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, and 128-bit AVX instruction
sets at this time.
https://emscripten.org/docs/porting/simd.html
Browsers might need to enable simd support in the advanced
configurations
about: config or chrome:flags
Enable by configuring Qt with -sse2
Pick-to: 6.2
Fixes: QTBUG-63924
Change-Id: Ifeafae20e199dee0d19689802ad20fd0bd424ca7
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
This increases link time significantly; instead set
"-g4" or the new "-gsource-map" only if source maps
are enabled.
Change-Id: Ibe2d438d48e9ae2fce5f79d4e8a9f17c01cf2485
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
A few configure defines get changed:
QMAKE_WASM_PTHREAD_POOL_SIZE is now QT_WASM_PTHREAD_POOL_SIZE
QMAKE_WASM_TOTAL_MEMORY is now QT_WASM_INITIAL_MEMORY
QMAKE_WASM_SOURCE_MAP_BASE is now QT_WASM_SOURCE_MAP_BASE
device-option EMSCRIPTEN_ASYNCIFY=1 is QT_EMSCRIPTEN_ASYNCIFY=1
To create source maps for debugging. use
device-option QT_WASM_SOURCE_MAP=1
Task-number: QTBUG-78647
Change-Id: If9f30cd7fb408c386d6d69b5f7b1beecf1ab44b5
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
This creates a define in the binary, as well as writing emscripten
version for qmake.
It also enforces app builder to use a certain known version.
Task-number: QTBUG-77745
Change-Id: I37691512171635cec66aa3ffa16258081f3f1e1b
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Use $$QMAKE_STREAM_EDITOR, instead, which will on Windows expand
to "qmake -install sed" (triggering qmake's own sed implementation)
and otherwise expand to "sed".
Change-Id: I57da5fb3a4f6e5a09ae25c947caa0a10d279b480
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
Using WASM_OBJECT_FILES does not allow memory growth, so we need to just
explicitly check for QMAKE_WASM_TOTAL_MEMORY
Change-Id: I447113972dfc3df4ee4073e8cc25481646d1507b
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
The CMake configure_file command is commonly used copy & modify template files
during the build process. One limitation, thought, is that configure_file
expect the variables to be replaced to be encoded using either a @APPNAME@ or
${APPNAME} convention.
This commit therefore changes "APPNAME" to "@APPNAME@" in wasm_shell.html to
make the HTML template file compatible with CMake configure_file.
With this commit, it becomes possible to write the following CMake function
that mimics what QMake is already doing:
function(copy_html_js_launch_files target)
set(APPNAME ${target})
configure_file("${_qt5Core_install_prefix}/plugins/platforms/wasm_shell.html"
"${target}.html")
configure_file("${_qt5Core_install_prefix}/plugins/platforms/qtloader.js"
qtloader.js COPYONLY)
endfunction()
Change-Id: Ic38abdc498ba03b8d21f1b9b70aa1d480ae7f362
Reference: https://cmake.org/cmake/help/latest/command/configure_file.html
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
configure.json: Make the “thread” feature be allowed
for wasm but disabled by default.
Change qmake.conf and wasm.prf to enable Emscripten
pthreads mode:
- Add USE_PTHREADS=1 linker flag
- Add PTHREAD_POOL_SIZE linker flag with a default pool size (4).
- Add TOTAL_MEMORY linker flag to set available memory (1GB)
It is possible to override options such as PTHREAD_POOL_SIZE
from the application .pro file using QMAKE_WASM_PTHREAD_POOL_SIZE
To change TOTAL_MEMORY, use QMAKE_WASM_TOTAL_MEMORY
Make qtloader.js work in pthreads mode:
- The Module.instantiateWasm callback must provide the module
in addition to the instance to Emscripten.
- Set Module.mainScriptUrlOrBlob so that the pthreads web workers
can access the main script
Task-number: QTBUG-64625
Change-Id: I1ab5a559ec97c27c5fc24500ba5f863bcd275141
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
The source map location can be configured by setting
QMAKE_WASM_SOURCE_MAP_BASE in the .pro file. Fall back
to “http://localhost:8000” if not set.
Task-number: QTBUG-72002
Change-Id: I9da80dacdefc272f267e5db4caac274d93ba4479
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
When running configure on a Windows host, it would fail with the
error that the copy statement was invalid, due to the forward
slashes. This makes configure finish without errors.
Task-number: QTBUG-72000
Change-Id: Id315d7436bbbfd2cd5c5f2dfcfe0c3dc3b9e34c2
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
This is the squashed diff from wip/webassembly to dev.
Done-with: Peng Wu <peng.wu@intopalo.com>
Done-with: Sami Enne <sami.enne@intopalo.com>
Done-with: Morten Johan Sørvig <morten.sorvig@qt.io>
Started-by: Andrew Knight <andrew.knight@intopalo.com>
Change-Id: I6562433c0a38d6ec49ab675e0f104f2665f3392d
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
