subagent transcript

session 17f09f89 · workflow wf_4f35050d
← 17f09f89 · archive
delegated task
Rebuilding the FreeCAD-wasm PySide binding stack with NATIVE wasm exceptions (new-EH / try_table, -fwasm-exceptions -sWASM_LEGACY_EXCEPTIONS=0) to mat
▸ Magik
Rebuilding the FreeCAD-wasm PySide binding stack with NATIVE wasm exceptions (new-EH / try_table, -fwasm-exceptions -sWASM_LEGACY_EXCEPTIONS=0) to match the JSPI + wasm-EH toolchain (qt-jspi is try_table). Mixed EH => invalid module, so EVERY C++ archive must be new-EH with ZERO 'U invoke_' symbols. Env: source /opt/toolchains/emsdk/emsdk_env.sh AND export LD_LIBRARY_PATH=/home/magik6k/lcad-wasm/pyside-port/libshim (host shiboken6 needs the libclang shim). Working dir /home/magik6k/lcad-wasm/pyside-port. The build scripts there ALREADY have the new-EH flags applied. QtCore was already rebuilt new-EH (build/m2-qtcore/, validated). VERIFY each output archive: (a) it exists + has its PyInit symbol; (b) new-EH: emnm <archive> | grep -c 'U invoke_' MUST be 0 (invoke_ = JS-EH leftover = fail); (c) optional: extract one .o, link 'int main(){}' + the .o with 'em++ -fwasm-exceptions -sWASM_LEGACY_EXCEPTIONS=0 -sJSPI -sERROR_ON_UNDEFINED_SYMBOLS=0' and node -e 'WebAssembly.validate(...)' == true. Report the archive path, PyInit symbol presence, invoke_ count (must be 0), and pass/fail. BUILD the Shiboken module lib new-EH. Run: cd /home/magik6k/lcad-wasm/pyside-port && bash shiboken-mod-build.sh -> build/shiboken-mod/libShiboken_wasm.a (PyInit_Shiboken). VERIFY 0 invoke_. Report.
Fable
thinking
I'll start by examining the build script and environment setup.
Fable
I'll start by examining the build script and environment.
Fable
⚙ Bash {"command": "cat /home/magik6k/lcad-wasm/pyside-port/shiboken-mod-build.sh", "description": "Show shiboken module build script"}
tool result
#!/usr/bin/env bash
set -euo pipefail
source /opt/toolchains/emsdk/emsdk_env.sh 2>/dev/null
SHIB=/tmp/pyside-setup/sources/shiboken6
GEN=/opt/toolchains/pyside-host/bin/shiboken6
OUT=/home/magik6k/lcad-wasm/pyside-port/build/shiboken-mod
INC=/home/magik6k/lcad-wasm/pyside-port/build/shiboken-wasm-inc
PYINC=/opt/toolchains/python-wasm/include/python3.14
rm -rf "$OUT"; mkdir -p "$OUT/gen"

# generate the Shiboken module wrappers
"$GEN" --generator-set=shiboken --enable-parent-ctor-heuristic --enab  …[truncated]
Fable
⚙ Bash {"command": "ls -la /home/magik6k/lcad-wasm/pyside-port/build/ 2>/dev/null; echo \"---libshim---\"; ls -la /home/magik6k/lcad-wasm/pyside-port/libshim 2>/dev/null", "description": "List build dir and libshim"}
tool result
total 0
drwxr-xr-x 1 magik6k magik6k   314 Jul  6 02:00 .
drwxr-xr-x 1 magik6k magik6k   560 Jul  6 01:59 ..
drwxr-xr-x 1 magik6k magik6k   116 Jul  5 21:31 glstubs
drwxr-xr-x 1 magik6k magik6k  1378 Jul  5 14:44 libpyside
drwxr-xr-x 1 magik6k magik6k   656 Jul  5 13:25 m0-minimal
drwxr-xr-x 1 magik6k magik6k   280 Jul  5 14:35 m1lite
drwxr-xr-x 1 magik6k magik6k    44 Jul  5 14:33 m1-qtcore
drwxr-xr-x 1 magi  …[truncated]
Fable
Now let me run the build with the required environment.
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/pyside-port && source /opt/toolchains/emsdk/emsdk_env.sh 2>/dev/null; export LD_LIBRARY_PATH=/home/magik6k/lcad-wasm/pyside-port/libshim; bash shiboken-mod-build.sh 2>&1 | tail -40", "description": "R…
tool result
qt.shiboken: (shiboken) CLANG v21/0.64 targeting "x86_64-pc-linux-gnu"/gnu, 64bit.
(shiboken)   [15ms] Generated class model (0).                                  [OK]
(shiboken)   [15ms] Generated enum model (0).                                   [OK]
(shiboken)   [15ms] Generated namespace model (0).                              [OK]
(shiboken)   [15ms] Resolved typedefs (0).                                      [OK]
(shiboken)   [15ms] Fixed class i  …[truncated]
Fable
Build succeeded with PyInit_Shiboken present. Now let me verify: archive exists, invoke_ count, and do the link validation.
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/pyside-port && source /opt/toolchains/emsdk/emsdk_env.sh 2>/dev/null; OUT=build/shiboken-mod\necho \"== archive:\"; ls -la $OUT/libShiboken_wasm.a\necho \"== PyInit:\"; emnm $OUT/libShiboken_wasm.a 2>…
tool result
== archive:
-rw-r--r-- 1 magik6k magik6k 13440 Jul  6 02:03 build/shiboken-mod/libShiboken_wasm.a
== PyInit:
00000001 T PyInit_Shiboken
== invoke_ count:
0
zshexit:1: parameter HISTDB_FD does not contain a file descriptor
Fable
0 invoke_ symbols. Now the optional link validation.
Fable
⚙ Bash {"command": "cd /home/magik6k/lcad-wasm/pyside-port && source /opt/toolchains/emsdk/emsdk_env.sh 2>/dev/null\nOUT=build/shiboken-mod\nW=$(mktemp -d /tmp/claude-1000/-home-magik6k-lcad-wasm/17f09f89-ce7c-4f49-aa6a-cf0521026805/scratchpad/shi…
tool result
obj=shiboken_module_wrapper.o
clang++: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated [-Wdeprecated]
em++: warning: -sASYNCIFY=2 (JSPI) is still experimental [-Wexperimental]
== validate:
true
zshexit:1: parameter HISTDB_FD does not contain a file descriptor
Fable
All checks pass. Let me report the results.
Fable
⚙ StructuredOutput {"component": "shiboken-mod", "ok": true, "invokeCount": 0, "archivePath": "/home/magik6k/lcad-wasm/pyside-port/build/shiboken-mod/libShiboken_wasm.a", "pyinitPresent": true, "validated": true, "notes": "Built via `bash shiboken-mod-build.s…
tool result
Structured output provided successfully