From bf2696311be53bed4fe976bb25bed81f0d7477ce Mon Sep 17 00:00:00 2001 From: Maksim Bondarenkov Date: Thu, 17 Apr 2025 12:53:17 +0300 Subject: [PATCH] bootstrap: enable zlib for LLVM when we compile it for profiling when compiling target LLVM with `opt-dist local` on Windows/MinGW, profraw files are being compressed with zlib, so compiling without it will make `llvm-profdata` complain about lacking of zlib support. this error is shown: `profile uses zlib compression but the profile reader was built without zlib support` example from llvm test suite: https://github.com/llvm/llvm-project/blob/76b5fcbf975547251faaeed8b567ea09d139a607/llvm/test/tools/llvm-profdata/nocompress.test#L15 --- src/bootstrap/download-ci-llvm-stamp | 2 +- src/bootstrap/src/core/build_steps/llvm.rs | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/bootstrap/download-ci-llvm-stamp b/src/bootstrap/download-ci-llvm-stamp index e157ff233bbf7..b70d452b427c8 100644 --- a/src/bootstrap/download-ci-llvm-stamp +++ b/src/bootstrap/download-ci-llvm-stamp @@ -1,4 +1,4 @@ Change this file to make users of the `download-ci-llvm` configuration download a new version of LLVM from CI, even if the LLVM submodule hasn’t changed. -Last change is for: https://github.com/rust-lang/rust/pull/138784 +Last change is for: https://github.com/rust-lang/rust/pull/139931 diff --git a/src/bootstrap/src/core/build_steps/llvm.rs b/src/bootstrap/src/core/build_steps/llvm.rs index 69a8bd59f16ca..6e84b83d17dcc 100644 --- a/src/bootstrap/src/core/build_steps/llvm.rs +++ b/src/bootstrap/src/core/build_steps/llvm.rs @@ -370,8 +370,8 @@ impl Step for Llvm { cfg.define("LLVM_PROFDATA_FILE", path); } - // Libraries for ELF section compression. - if !target.is_windows() { + // Libraries for ELF section compression and profraw files merging. + if !target.is_msvc() { cfg.define("LLVM_ENABLE_ZLIB", "ON"); } else { cfg.define("LLVM_ENABLE_ZLIB", "OFF");