runtime/race package contains the data race detector runtime library.
It is based on ThreadSanitizer race detector, that is currently a part of
the LLVM project (https://github.com/llvm/llvm-project/tree/master/compiler-rt).

To update the .syso files use golang.org/x/build/cmd/racebuild.

race_darwin_amd64.syso built with LLVM 3496d6e4bea9cb99cb382939b7e79a50a3b863a5 and Go 553e003414d3aa90cc39830ee22f08453d9f3408.
race_freebsd_amd64.syso built with LLVM 3496d6e4bea9cb99cb382939b7e79a50a3b863a5 and Go 553e003414d3aa90cc39830ee22f08453d9f3408.
race_linux_amd64.syso built with LLVM 3496d6e4bea9cb99cb382939b7e79a50a3b863a5 and Go 553e003414d3aa90cc39830ee22f08453d9f3408.
race_linux_ppc64le.syso built with LLVM 3496d6e4bea9cb99cb382939b7e79a50a3b863a5 and Go 553e003414d3aa90cc39830ee22f08453d9f3408.
race_netbsd_amd64.syso built with LLVM 3496d6e4bea9cb99cb382939b7e79a50a3b863a5 and Go 553e003414d3aa90cc39830ee22f08453d9f3408.
race_windows_amd64.syso built with LLVM 3496d6e4bea9cb99cb382939b7e79a50a3b863a5 and Go 553e003414d3aa90cc39830ee22f08453d9f3408.
race_linux_arm64.syso built with LLVM 3496d6e4bea9cb99cb382939b7e79a50a3b863a5 and Go 553e003414d3aa90cc39830ee22f08453d9f3408.