x/tools/cmd/compilebench: loadinternal: cannot find runtime/cgo

[qiulaidongfeng]

What version of Go are you using (go version)?

$ go version
1.21.1

Does this issue reproduce with the latest release?

yes.

What operating system and processor architecture are you using (go env)?

go env Output

$ go env

What did you do?

go install golang.org/x/tools/cmd/compilebench@latest
compilebench -alloc

What did you expect to see?

Normal benchmark.

What did you see instead?

loadinternal: cannot find runtime/cgo

[prattmic]

cc @golang/compiler

[cherrymui]

Could you show the complete output? What platform do you run on?

loadinternal: cannot find runtime/cgo this line is just a print, not an error. Do you still get the benchmark results?

[qiulaidongfeng]

Run on Linux/amd64
output:

BenchmarkTemplate 1 266844474 ns/op 358912000 user-ns/op
BenchmarkUnicode 1 125062571 ns/op 139210000 user-ns/op
BenchmarkGoTypes 1 1731786734 ns/op 2655056000 user-ns/op
BenchmarkCompiler 1 97326266 ns/op 107688000 user-ns/op
BenchmarkSSA 1 11858574099 ns/op 18812607000 user-ns/op
BenchmarkFlate 1 129268703 ns/op 180482000 user-ns/op
BenchmarkGoParser 1 252441849 ns/op 389266000 user-ns/op
BenchmarkReflect 1 623183863 ns/op 978348000 user-ns/op
BenchmarkTar 1 230124921 ns/op 321653000 user-ns/op
BenchmarkXML 1 251384006 ns/op 382333000 user-ns/op
BenchmarkLinkCompiler 1 501002715 ns/op 730779000 user-ns/op
loadinternal: cannot find runtime/cgo
BenchmarkExternalLinkCompiler 1 1502519909 ns/op 1492371000 user-ns/op
BenchmarkLinkWithoutDebugCompiler 1 242237716 ns/op 257949000 user-ns/op
BenchmarkStdCmd 1 122730287736 ns/op
BenchmarkHelloSize 1 804035 text-bytes 14624 data-bytes 203368 bss-bytes 1284840 exe-bytes
BenchmarkCmdGoSize 1 11216349 text-bytes 305074 data-bytes 235440 bss-bytes 16734189 exe-bytes

see https://github.com/golang/go/blob/master/src/cmd/link/internal/ld/lib.go#L450,It seems that it was printed by the link. Is this an error in the link or is it the debugging information for the link?

[cherrymui]

It is just a diagnostic message the linker prints. It is not an error. It should still generate the correct program.

That said, since #31544 is fixed, we probably could arrange compilebench to pass a more correct configuration to avoid this.

[gopherbot]

Change https://go.dev/cl/533855 mentions this issue: cmd/compilebench: pass linker flags to prebuild