Brett Cannon
0953200b13
GH-137484: Have Tools/wasm/wasi use the build triple instead of "build" (GH-37485)
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This should help prevent issuse where something like a container is used to do one build and then someone tries to build again locally.
2025-08-06 12:28:54 -07:00
Brett Cannon
94498a53f3
GH-137248: Add a --logdir option to Tools/wasm/wasi (GH-137249)
2025-07-30 19:13:37 +00:00
Brett Cannon
2f1a9f2ed4
GH-137243: Have Tools/wasm/wasi detect WASI SDK installs in /opt when the release tarball is extracted (GH-137244)
2025-07-30 11:46:24 -07:00
Hood Chatham
ae4d27eba7
gh-124621: Emscripten: Add smoke test for using pyrepl in Chrome ( #137004 )
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Adds a mechanism to test browser-based initialisation of the Python interpreter,
via a Playwright headless browser instance.
2025-07-24 14:44:02 +08:00
Hood Chatham
ecb3f23b94
gh-136976: Emscripten: Add _decimal and libmpdec ( #136997 )
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Adds tooling to build mpdec (and thus _decimal) as part of an Emscripten build.
2025-07-24 06:31:30 +00:00
Brett Cannon
ec7fad79d2
Touch up Setup.local handling in Tools/wasm/wasi (GH-137051)
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The comment in the generated file is now more self-explanatory. The checks for unexpected file contents are also strengthened.
2025-07-23 11:50:15 -07:00
Hood Chatham
c933a6bb32
gh-124621: Emscripten: Support pyrepl in browser (GH-136931)
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Basic support for pyrepl in Emscripten. Limitations:
* requires JSPI
* no signal handling implemented
As followup work, it would be nice to implement a webworker variant
for when JSPI is not available and proper signal handling.
Because it requires JSPI, it doesn't work in Safari. Firefox requires
setting an experimental flag. All the Chromiums have full support since
May. Until we make it work without JSPI, let's keep the original web_example
around.
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
Co-authored-by: Éric <merwok@netwok.org>
2025-07-22 12:13:38 +02:00
Hood Chatham
bbe589f93c
gh-133600: Move config.site-wasm32-emscripten into the emscripten folder ( #136934 )
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Reorganises the large Emscripten-specific file into the Emscripten folder.
2025-07-22 07:58:31 +08:00
adam j hartz
d1d526afe7
gh-136251: Improvements to WASM demo REPL (GH-136252)
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Co-authored-by: Hood Chatham <roberthoodchatham@gmail.com>
2025-07-21 11:56:45 +02:00
Hood Chatham
9c7b2af73d
gh-136852: Emscripten: Fix bug in #136853 ( #136909 )
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We need to get rid of some whitespace to make this work.
2025-07-21 11:17:36 +02:00
Hood Chatham
aec7f5f8b2
gh-136852: Emscripten: Add PYTHON_NODE_VERSION environment variable ( #136853 )
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To choose the node version we use. Together with:
https://github.com/python/buildmaster-config/pull/614
closes #136852 .
2025-07-21 00:30:35 +02:00
Hood Chatham
7ae4749d06
gh-124621: Emscripten: Add support for async input devices (GH-136822)
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This is useful for implementing proper `input()`. It requires the
JavaScript engine to support the wasm JSPI spec which is now stage 4.
It is supported on Chrome since version 137 and on Firefox and node
behind a flag.
We override the `__wasi_fd_read()` syscall with our own variant that
checks for a readAsync operation. If it has it, we use our own async
variant of `fd_read()`, otherwise we use the original `fd_read()`.
We also add a variant of `FS.createDevice()` called
`FS.createAsyncInputDevice()`.
Finally, if JSPI is available, we wrap the `main()` symbol with
`WebAssembly.promising()` so that we can stack switch from `fd_read()`.
If JSPI is not available, attempting to read from an AsyncInputDevice
will raise an `OSError`.
2025-07-19 17:14:29 +02:00
Russell Keith-Magee
34393cbdd4
gh-135648: Document that shutil.copyfileobj doesn't flush ( #135737 )
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Adds a note about flush/close on copyfileobj, and updates
the Emscripten build script to follow documented advice.
2025-06-24 08:55:50 +08:00
Brett Cannon
2da2be4b84
GH-131769: fix detecting a pydebug build of the build Python when building for WASI (GH-134015)
2025-05-22 14:41:50 -07:00
Brett Cannon
7d129f99ab
Clarify some wording in wasi(\.py)? (GH-133619)
2025-05-08 09:54:46 -07:00
Zachary Ware
14291faa52
wasi: Update the location of the 'config.site' file in the build script (GH-133611)
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Also remove Tools/wasm from mypy CI workflow
2025-05-07 20:48:41 +00:00
Brett Cannon
ee49644cc9
GH-133600: Refactor wasi.py into wasi/__main__.py
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Along the way, also move related files into their appropriate directories and update `.github/CODEOWNERS`.
2025-05-07 12:10:53 -07:00
Michael Droettboom
c14134020f
gh-133259: Show path to python.sh script on successful build ( #133268 )
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* gh-133259: Show path to python.sh script on successful build
* wasmtime -> (generic) wasm runtime
2025-05-01 18:49:39 +00:00
Lukas
146b981f76
Silence system utils tests in emscripten python.sh ( #133044 )
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Ensure that checks for system functions don't leak onto stdout on failure.
2025-04-28 06:13:02 +08:00
Yongzi Li
a985c9262f
Fix some typos in various doc files (GH-132589)
2025-04-16 18:11:47 +00:00
Hood Chatham
97ab8fc16a
gh-127146: Fix Emscripten build with --pydebug ( #131672 )
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Removes an explicit check that sysconfigdata naming is correct, in favor of reporting at
runtime with the default mechanisms.
2025-03-25 05:43:31 +08:00
Hood Chatham
cf288e3c25
gh-127146: Update test skips for Emscripten 4.0.2 ( #129474 )
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Updates test skips to reflect capabilities of Emscripten 4.0.2.
2025-03-17 06:02:27 +08:00
Victor Stinner
85cabed260
gh-131152: Remove unused imports from Tools/{build,wasm} ( #131155 )
2025-03-13 10:58:28 +01:00
Hood Chatham
db1e5827c4
gh-127503: Improve tracebacks on Emscripten when there is a trap ( #131158 )
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Modifies the behavior of the interpreter on crash under Emscripten:
1. No Python traceback shown on segfault/trap
2. The JavaScript source line is shown
The JavaScript source line is super long and completely unenlightening,
whereas the Python traceback is very helpful.
2025-03-13 08:28:15 +08:00
Agriya Khetarpal
e2064d6750
Emscripten: use better _Py_Version computation for worker module ( #129757 )
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Use integer bit shifting instead of conversion to strings to compute Python version.
2025-02-07 12:55:27 +08:00
Hood Chatham
3b18af964d
gh-127629: Add ctypes to the Emscripten build ( #127683 )
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Adds tooling to build libffi and add ctypes to the stdlib for Emscripten.
2024-12-10 10:32:58 +08:00
Hood Chatham
d8d12b37b5
gh-127503: Fix realpath handling in emscripten cli ( #127632 )
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Corrects the handling of realpath on Linux.
2024-12-09 10:03:11 +08:00
Hood Chatham
5876063d06
gh-127503 Don't propagate native PATH to Emscripten Python ( #127633 )
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Modifies the handling of PATH to ensure that native executables aren't picked
up when running under node.
2024-12-09 10:01:37 +08:00
Brett Cannon
0fc4063747
GH-127652: stop using --wasi preview2 in wasi.py (GH-127704)
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It's only to use WASI 0.2 code to back preview1 APIs and is considered experimental anyway.
2024-12-06 18:42:05 +00:00
Hood Chatham
87faf0a9c4
gh-127503: Emscripten make Python.sh function as proper Python CLI ( #127506 )
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Modifies the python.sh script to work on macOS, and adapt to recent emscripten changes.
2024-12-05 08:44:50 +08:00
Hood Chatham
2f1cee8477
gh-127111: Apply prettier formatter to Emscripten web example ( #127551 )
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Cleaned up formatting (and a stray closing tag) of the web example HTML and JS.
2024-12-05 08:25:06 +08:00
Hood Chatham
bfb0788bfc
gh-127111: Emscripten Make web example work again ( #127113 )
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Moves the Emscripten web example into a standalone folder, and updates
Makefile targets to build the web example. Instructions for usage have
also been added.
2024-12-03 07:30:24 +08:00
Hood Chatham
1629d2ca56
gh-126898: Emscripten support: Use es6 modules ( #126903 )
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Modify Emscripten support to use ES6 modules.
2024-11-21 15:10:46 +11:00
Hood Chatham
544b001b23
gh-126691: Remove --with-emscripten-target ( #126787 )
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This unifies the code for nodejs and the code for the browser. After this
commit, the browser example doesn't work; this will be fixed in a
subsequent update.
2024-11-16 09:44:05 +08:00
Hood Chatham
f8276bf5f3
gh-126187 Add emscripten.py script to automate emscripten build ( #126190 )
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Add emscripten.py script to automate emscripten build.
This is modeled heavily on `Tools/wasm/wasi.py`. This will form the basis of an Emscripten build bot.
2024-11-09 10:12:55 +08:00
Brett Cannon
bbe9b21d06
GH-123877: default to wasm32-wasip1 instead of wasm32-wasi to be more specific (GH-126552)
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Eventually wasm32-wasi will represent WASI 1.0, and so it's currently deprecated so it can be used for that eventual purpose. wasm32-wasip1 is also more specific to what version of WASI is currently supported.
---------
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
2024-11-07 13:40:56 -08:00
Hood Chatham
dc2552d429
gh-124928: Emscripten node support: Clean up old node <= 16 flags ( #124929 )
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Clean up configure flags for old node versions
These flags are only needed for node <= 16. Node 16 has been end of life since
October of 2023.
2024-10-29 06:28:54 +00:00
Brett Cannon
66cc6d4c50
Remove some unused files related to WASM/WASI (GH-124635)
2024-09-26 21:23:41 +00:00
Brett Cannon
b15b81ed4f
GH-121634: have wasi.py accept the host target triple as an argument (GH-123030)
2024-08-15 10:30:08 -07:00
Brett Cannon
f589f263bc
GH-120371: Add WASI SDK 22 support (GH-121870)
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Required disabling stub functions now provided by wasi-libc.
2024-07-16 20:00:39 +00:00
Brett Cannon
f62161837e
GH-121521: Detect when wasmtime is not installed in Tools/wasm/wasi.py (GH-121522)
2024-07-09 15:08:01 -07:00
Victor Stinner
6acf7776ef
gh-120507: Double WASI memory ( #120648 )
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Use 16 MiB stack with 40 MiB memory limit, instead of 8 MiB stack
with 20 MiB memory limit.
2024-06-17 16:08:05 +00:00
Katie Bell
010aaa32fb
gh-97747: Improvements to WASM browser REPL. ( #97665 )
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Improvements to WASM browser REPL.
Adds a text box to write and run code outside the REPL, a stop button, and handling of Ctrl-D for EOF.
2024-05-31 09:58:46 +02:00
Xie Yanbo
bf08f0a5fe
Fix typos in comments ( #119645 )
2024-05-28 09:53:32 +02:00
Xie Yanbo
c618d53a3a
Fix typo in Tools/wasm/README.md( #118358 )
2024-04-28 18:00:48 +01:00
Brett Cannon
bc708c76d2
GH-116314: Update Tools/wasm/README.md to point to the devguide for building for WASI (GH-116445)
2024-03-07 02:38:00 +00:00
Brett Cannon
7af063d1d8
GH-116313: get WASI builds to run under wasmtime 18 w/ WASI 0.2/preview2 primitives ( #116327 )
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* GH-116313: get WASI builds to run under wasmtime 18 w/ WASI 0.2/preview2 primitives
* Add the configure changes
* Update `wasm_build.py`
2024-03-05 09:18:53 +01:00
Brett Cannon
5dc8c84d39
GH-115978: Disable *readv() and *writev() on WASI (GH-116228)
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Wasmtime doesn't implement these functions in a way to pass test_posix (https://github.com/bytecodealliance/wasmtime/issues/7830 ).
2024-03-01 16:52:12 -08:00
Brett Cannon
18343c0985
GH-113516: don't set LDSHARED when building for WASI (GH-115495)
2024-02-15 00:51:23 +00:00
Skip Montanaro
80734a6872
Update README.md ( #114974 )
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Trivial edit
Co-authored-by: Carol Willing <carolcode@willingconsulting.com>
2024-02-04 00:16:30 +00:00
