15 lines
623 B
Rust
15 lines
623 B
Rust
//! Windows: give the main thread the stack Linux and macOS give it (see `main_thread_stack`).
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fn main() {
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main_thread_stack();
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}
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/// Windows starts the main thread with 1 MB of stack, Linux and macOS with 8 MB. Layers nest up
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/// to 256 deep in an export, and that recursion needs the same room everywhere.
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fn main_thread_stack() {
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if std::env::var("CARGO_CFG_TARGET_OS").as_deref() != Ok("windows") {
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return;
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}
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let msvc = std::env::var("CARGO_CFG_TARGET_ENV").as_deref() == Ok("msvc");
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println!("cargo::rustc-link-arg-bins={}", if msvc { "/STACK:8388608" } else { "-Wl,--stack,8388608" });
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}
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