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 (http://llvm.org/git/compiler-rt.git).

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

race_darwin_amd64.syso built with LLVM fe2c72c59aa7f4afa45e3f65a5d16a374b6cce26 and Go 323c85862a7afbde66a3bba0776bf4ba6cd7c030.
race_freebsd_amd64.syso built with LLVM fe2c72c59aa7f4afa45e3f65a5d16a374b6cce26 and Go 323c85862a7afbde66a3bba0776bf4ba6cd7c030.
race_linux_amd64.syso built with LLVM fe2c72c59aa7f4afa45e3f65a5d16a374b6cce26 and Go 323c85862a7afbde66a3bba0776bf4ba6cd7c030.
race_linux_ppc64le.syso built with LLVM fe2c72c59aa7f4afa45e3f65a5d16a374b6cce26 and Go 323c85862a7afbde66a3bba0776bf4ba6cd7c030.
race_netbsd_amd64.syso built with LLVM fe2c72c59aa7f4afa45e3f65a5d16a374b6cce26 and Go 323c85862a7afbde66a3bba0776bf4ba6cd7c030.
race_windows_amd64.syso built with LLVM ae08a22cc215448aa3ad5a6fb099f6df77e9fa01 and Go 323c85862a7afbde66a3bba0776bf4ba6cd7c030.
race_linux_arm64.syso built with LLVM 3aa2b775d08f903f804246af10b80a439c16b436 and Go ef2c48659880c7e8a989e6721a21f018790f7793.