diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs index ca337aa9f4c32..0a0f0fde95c76 100644 --- a/src/bootstrap/src/core/build_steps/compile.rs +++ b/src/bootstrap/src/core/build_steps/compile.rs @@ -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