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bootstrap: Build jemalloc with support for 64K pages #135081

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Merged
merged 1 commit into from
Jan 7, 2025
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bootstrap: Build jemalloc with support for 64K pages #135081

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9 changes: 9 additions & 0 deletions src/bootstrap/src/core/build_steps/compile.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1207,6 +1207,15 @@ pub fn rustc_cargo_env(
rustc_llvm_env(builder, cargo, target)
}
}

// Build jemalloc on AArch64 with support for page sizes up to 64K
// See: https://github.com/rust-lang/rust/pull/135081
if builder.config.jemalloc
&& target.starts_with("aarch64")
&& env::var_os("JEMALLOC_SYS_WITH_LG_PAGE").is_none()
{
cargo.env("JEMALLOC_SYS_WITH_LG_PAGE", "16");
}
}

/// Pass down configuration from the LLVM build into the build of
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