Race detection with CGO_ENABLED=0?

[Blake Caldwell]

I'm building my service without CGO, so ideally, I'd like to run my tests with the same settings, and I really like race detection. Is there any way to use the race detector with CGO_ENABLED=0?

# testmain

runtime/race(.text): __libc_malloc: not defined

runtime/race(.text): getuid: not defined

runtime/race(.text): pthread_self: not defined

runtime/race(.text): madvise: not defined

runtime/race(.text): sleep: not defined

runtime/race(.text): usleep: not defined

runtime/race(.text): abort: not defined

runtime/race(.text): isatty: not defined

runtime/race(.text): __libc_free: not defined

runtime/race(.text): getrlimit: not defined

runtime/race(.text): __libc_stack_end: not defined

runtime/race(.text): getrlimit: not defined

runtime/race(.text): setrlimit: not defined

runtime/race(.text): setrlimit: not defined

runtime/race(.text): setrlimit: not defined

runtime/race(.text): exit: not defined

runtime/race(.text.unlikely): __errno_location: not defined

runtime/race(.text): undefined: __libc_malloc

runtime/race(.text): undefined: getuid

runtime/race(.text): undefined: pthread_self

runtime/race(.text): undefined: madvise

too many errors

[Dave Cheney]

The race detector needs cgo, the race detector lives in a .so that provides those missing symbols. 

The simplest solution may be to modify your go install to always use the pure go resolver, look for the // +build netgo tags, and remove "linux" from the version that uses cgo, this should let you have both cgo an the pure Go resolver, and thus the race detector at the same time.

[Dmitry Vyukov]

Yes, unfortunately it does not work now.
I have this in plans for a long time. Filed:
https://github.com/golang/go/issues/9918

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[Blake Caldwell]

Thanks guys!