d8d5ea8b6a
Restore missing required asset/flow packages from the pinned nigig revision; retain upstream script isolation, X11 hover, and widget-core fixes. Validated makepad-widgets data feature with Rust 1.97.1.
27 lines
1.5 KiB
Rust
27 lines
1.5 KiB
Rust
// WINDOWS MAIN-THREAD STACK RESERVE.
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//
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// Windows gives the main thread a 1 MB stack by default; macOS gives 8 MB and
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// Linux 8 MB. The VJ app's startup walks a very large script tree — fourteen
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// script_mod registration passes (widgets, render, xr, asset widgets, chat ui,
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// views, mesh, flow warp, nv12, music, effects, fx thumbs, fx slot, midi learn)
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// plus 261 bundled effect presets — and the DSL evaluator is a recursive
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// descent over that tree. Peak main-thread usage measured between 1 MB and
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// 2 MB: bounded, but just over what Windows hands out. The result on Windows
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// was a hard `thread 'main' has overflowed its stack` at boot, before the
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// window ever appeared.
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//
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// Verified by bracketing the macOS binary with `ulimit -s`: at 1024 KB it
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// reproduces the Windows crash exactly (same final log lines), at 2048 KB it
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// boots and runs. So this is a platform default, not a runaway recursion —
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// raising the reserve is the fix, not a paper-over.
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//
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// /STACK sets the PE header's stack RESERVE, which is address space only;
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// pages commit lazily, so a 16 MB reserve costs no real memory and simply
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// gives the same headroom the other platforms already have.
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fn main() {
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let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap_or_default();
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let target_env = std::env::var("CARGO_CFG_TARGET_ENV").unwrap_or_default();
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if target_os == "windows" && target_env == "msvc" {
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println!("cargo:rustc-link-arg-bins=/STACK:16777216");
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}
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}
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