runtime/race: __acrt_iob_func not defined building with -race on Windows

[mattn]

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

go version devel +6f37fee354 Wed Jan 31 22:12:10 2018 +0000 windows/amd64

Does this issue reproduce with the latest release?

No, maybe something wrong in recent commits.

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

set GOARCH=amd64
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOOS=windows

What did you do?

go test -race

What did you expect to see?

works

What did you see instead?

failed with following errors

runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): undefined: "__acrt_iob_func"
runtime/cgo(.text): undefined: "__acrt_iob_func"
runtime/cgo(.text): undefined: "__acrt_iob_func"
runtime/cgo(.text): undefined: "__acrt_iob_func"
runtime/cgo(.text): undefined: "__acrt_iob_func"

[ianlancetaylor]

In which directory are you running go test -race?

[mattn]

@ianlancetaylor anywhere can be possible.

$ mkdir %GOPATH%\src\github.com\mattn\foo
$ cd %GOPATH%\src\github.com\mattn\foo
$ cat > foo_test.go
package foo

import (
	"testing"
)

func TestSimple(t *testing.T) {
	got := 1
	want := 2
	if got != want {
		t.Fatalf("want %v, but %v:", want, got)
	}
}
^Z
$ go test -race
# github.com/mattn/foo (testmain)
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): undefined: "__acrt_iob_func"
runtime/cgo(.text): undefined: "__acrt_iob_func"
runtime/cgo(.text): undefined: "__acrt_iob_func"
runtime/cgo(.text): undefined: "__acrt_iob_func"
runtime/cgo(.text): undefined: "__acrt_iob_func"
FAIL    github.com/mattn/foo [build failed]

[ianlancetaylor]

Can you show us the output of go test -race -x?

The references may possibly be coming from runtime/race/race_windows_amd64.syso.

[mattn]

WORK=C:\Users\mattn\AppData\Local\Temp\go-build145566806
mkdir -p $WORK\b001\
mkdir -p $WORK\b052\
cat >$WORK\b052\vet.cfg << 'EOF' # internal
{
	"Compiler": "gc",
	"Dir": "c:\\dev\\go\\src\\github.com\\mattn\\foo",
	"GoFiles": [
		"c:\\dev\\go\\src\\github.com\\mattn\\foo\\foo_test.go"
	],
	"ImportMap": {
		"fmt": "fmt",
		"testing": "testing"
	},
	"PackageFile": {
		"fmt": "C:\\Users\\mattn\\AppData\\Local\\go-build\\a3\\a3d8338a2cd5a66b9cd0ce3e19a2ba75cae2365147f3d65e37d2214eda7360a9-d",
		"testing": "C:\\Users\\mattn\\AppData\\Local\\go-build\\ed\\edcf0d2f0bf2ebf41c928d10bebf64e600e87fc72dd897c0951bb13dc86989ea-d"
	},
	"ImportPath": "github.com/mattn/foo",
	"SucceedOnTypecheckFailure": true
}
EOF
cd c:\dev\go\src\github.com\mattn\foo
"C:\\go\\pkg\\tool\\windows_amd64\\vet.exe" -atomic -bool -buildtags -nilfunc -printf "C:\\Users\\mattn\\AppData\\Local\\Temp\\go-build145566806\\b052\\vet.cfg"
cat >$WORK\b001\importcfg.link << 'EOF' # internal
packagefile github.com/mattn/foo (testmain)=C:\Users\mattn\AppData\Local\go-build\a1\a1cd7cb20a5f900d42bb15aed70e97bb42e4421b20bb2ee25b2ecf2e983957db-d
packagefile os=C:\Users\mattn\AppData\Local\go-build\83\837d4b3bdc415f8bcb91dcdabce57fa92c56b9518b71791e700f81d857e79e68-d
packagefile testing=C:\Users\mattn\AppData\Local\go-build\ed\edcf0d2f0bf2ebf41c928d10bebf64e600e87fc72dd897c0951bb13dc86989ea-d
packagefile testing/internal/testdeps=C:\Users\mattn\AppData\Local\go-build\ee\ee6f4653963b6916af2a304b23aac3a17080459df3fecf65dbd96759150078f6-d
packagefile runtime=C:\Users\mattn\AppData\Local\go-build\1e\1e02e966f3220ba3fa509fc0f88a1782dfab120d8d0140405537cbc5857bcd6e-d
packagefile runtime/race=C:\Users\mattn\AppData\Local\go-build\78\78c2b3fc30b8de4bf316f28c8f64417b6add42815c3f9e3e947f80b96e6d6c75-d
packagefile github.com/mattn/foo=C:\Users\mattn\AppData\Local\go-build\68\68f4246cdf49dc4424505adbe919adfcbb58be7b247c5cdbcc666f2c679dbcf2-d
packagefile errors=C:\Users\mattn\AppData\Local\go-build\68\68e3f9c288343074208dc9e0a266346ff7625e552ef829ada893db6628a51f8b-d
packagefile internal/poll=C:\Users\mattn\AppData\Local\go-build\b7\b7daed2c5d1cdfcf9f6480e996b73a0dd4433478e4dc8a4d3c6f747baae8c073-d
packagefile internal/syscall/windows=C:\Users\mattn\AppData\Local\go-build\13\13816b7dc009ed7c1e7274f912134c95e68ba9cc82a7031905c6b8b42c1f2891-d
packagefile internal/testlog=C:\Users\mattn\AppData\Local\go-build\f0\f0da1bc52eda632593bdb6d042a0fcd484fa373f29204ae36d41259241023492-d
packagefile io=C:\Users\mattn\AppData\Local\go-build\ca\ca0ff109878b733122cb5ac2fb576f5d6bb1652a7dde8e765dd65261156554ed-d
packagefile sync=C:\Users\mattn\AppData\Local\go-build\c1\c1ddb79625fec9aa4575933dbd316dba9b27d79555757941ede222d3cc6e4bb2-d
packagefile sync/atomic=C:\Users\mattn\AppData\Local\go-build\29\2937e911eec472bb2123d58af418e2da85468ba6ca3fd0a1533744f690356776-d
packagefile syscall=C:\Users\mattn\AppData\Local\go-build\2c\2c58e945883ab36d2410c5d364a63944cd39f0eaccbcfc4326a7b0778c854327-d
packagefile time=C:\Users\mattn\AppData\Local\go-build\45\4572e703e2c552c5d557caa54079f1f6074f059c277ae6567f51589f20c9643c-d
packagefile unicode/utf16=C:\Users\mattn\AppData\Local\go-build\6a\6a9a0523c33041ad28aa6b951f78b4940445672f274feca8c019afacf0594f16-d
packagefile bytes=C:\Users\mattn\AppData\Local\go-build\d0\d01cb1df3ed8d3f9e49d35230e43dce1ab928560bd37548fd1f859605b690d1b-d
packagefile flag=C:\Users\mattn\AppData\Local\go-build\8e\8e5a9f40700f231986b5fe7827befbc2dc832a33bf954a3555d941dc46370ec3-d
packagefile fmt=C:\Users\mattn\AppData\Local\go-build\a3\a3d8338a2cd5a66b9cd0ce3e19a2ba75cae2365147f3d65e37d2214eda7360a9-d
packagefile internal/race=C:\Users\mattn\AppData\Local\go-build\47\47969aa17e7eb3241750ed30f2cbd2fc100ad3ac7c4af97a47a0d28e678235e1-d
packagefile runtime/debug=C:\Users\mattn\AppData\Local\go-build\63\637b0a90189037487b87f9d8d1ab56aff367e6ef5c5cdf92ce9004551a13d6e8-d
packagefile runtime/trace=C:\Users\mattn\AppData\Local\go-build\cc\cc72603177f7f1a64234e4263075a00cb2a940d9de8ff935aaeee89f9c1a1b9a-d
packagefile sort=C:\Users\mattn\AppData\Local\go-build\7e\7eb34e9c94bb2e5765f2ea39a77592f416a8e5d45f892b7134534cb61d8b0143-d
packagefile strconv=C:\Users\mattn\AppData\Local\go-build\bf\bf8cb0e39b03fa85f5c18875f0f4b8ea940c17a9eb2b367c2d9ec60eb41b9f27-d
packagefile strings=C:\Users\mattn\AppData\Local\go-build\e3\e3921607adc7f7e34c5c3c7885e9e7a8de28dcadce77deae9f362d10ace9fef6-d
packagefile bufio=C:\Users\mattn\AppData\Local\go-build\31\3172eec9b4e15ba9b56253ad8a0bf3de77d3752ae423f552f2bb20f1fb5f0b5c-d
packagefile regexp=C:\Users\mattn\AppData\Local\go-build\9f\9f439c7b8919063d5dd387dca4e3e65a68e9195b8545194868c5bebdec840b1c-d
packagefile runtime/pprof=C:\Users\mattn\AppData\Local\go-build\7e\7eb89538e15c98300ddc1f774643f0610bdb9bcf8e8d4d286ac2b8e81f4b9d2e-d
packagefile runtime/internal/atomic=C:\Users\mattn\AppData\Local\go-build\24\240e5b9c27d638d2e2752efb5ad5aa9bf413d1ef39227bcf81edfc3638f9c69d-d
packagefile runtime/internal/sys=C:\Users\mattn\AppData\Local\go-build\9e\9ecbfdff43cebed79c4d60e65bd9b9fe62eaa357639bdd9e730410b85f69baff-d
packagefile runtime/cgo=C:\Users\mattn\AppData\Local\go-build\a5\a52e8da57055eafee31eb84a4893c9971088b8deaa63de99103f3e100a09ef2a-d
packagefile unicode/utf8=C:\Users\mattn\AppData\Local\go-build\6e\6efff469d5bf5358781c24fec393abd273bc605322f725abc0a581be9676286b-d
packagefile internal/syscall/windows/sysdll=C:\Users\mattn\AppData\Local\go-build\f1\f1b02e75282f68faefcaf8527406783929070b3c6178b7f5813bbf5275dd9818-d
packagefile internal/syscall/windows/registry=C:\Users\mattn\AppData\Local\go-build\45\452267d2da652a5afdf48dc13d2bf4842c63e42cee983833b0d24238f1469652-d
packagefile internal/cpu=C:\Users\mattn\AppData\Local\go-build\08\0820411bd99f23e507e18428a919a89772e24f45fde3993bbde77ddbe64693d2-d
packagefile unicode=C:\Users\mattn\AppData\Local\go-build\da\da22e4a89a2be70ca5572a07cbc04f555592fa5efa1945a5a236f8d16391e52f-d
packagefile reflect=C:\Users\mattn\AppData\Local\go-build\fe\fe0225cad5ff122232f6b54733283073c143e2bb7201c11911fa74afb37773b5-d
packagefile math=C:\Users\mattn\AppData\Local\go-build\54\5477db0575eaad986e6af44a6d92eb5b9b029f68bd2eda1cff695feef78ab65b-d
packagefile regexp/syntax=C:\Users\mattn\AppData\Local\go-build\ff\ff255ed1e973468deb90e18fbb8dfd410cbaedf18f28d5f962ffbf18507593c3-d
packagefile compress/gzip=C:\Users\mattn\AppData\Local\go-build\01\01e494cfaaaf1e74612ca5a553f42b57c7ace529f9014a66fed37ac5795f9cf1-d
packagefile context=C:\Users\mattn\AppData\Local\go-build\f3\f31d3ebc36126e980dda077c1e58e38807ea213eb5f2aeb5660d3bbb7bb0a211-d
packagefile encoding/binary=C:\Users\mattn\AppData\Local\go-build\20\201852e405473d2c0ba6af3f027543b807e62d9a51522011044368906db73cb4-d
packagefile io/ioutil=C:\Users\mattn\AppData\Local\go-build\ed\edbe00c607f78531a963dbe6201f18c2a7b3ccd4b1df109fb352cf03b47435b9-d
packagefile text/tabwriter=C:\Users\mattn\AppData\Local\go-build\63\63adbe090316bef2abadb405f567ad610d9b67394b9c759c84ba1d835e5bf6e1-d
packagefile compress/flate=C:\Users\mattn\AppData\Local\go-build\15\154623f1674dd99d895f1da69c50f27258b7a12ac729ae26182ad1b378eeaaad-d
packagefile hash/crc32=C:\Users\mattn\AppData\Local\go-build\ce\cead5fd22d068fcf09b8e5243bc51760a843e6bdcb21bb4ad0d5850b9748135b-d
packagefile path/filepath=C:\Users\mattn\AppData\Local\go-build\74\745eee1f96c076cc9d5022442547312bc1b877ceb2dbdab11fe92a062c4196d9-d
packagefile math/bits=C:\Users\mattn\AppData\Local\go-build\44\44634ab159fd5fc49a33bfc094c9913922a2aa5d82551333f71c01daac982955-d
packagefile hash=C:\Users\mattn\AppData\Local\go-build\7b\7b545474ad2305b77c32f519c4c9d8c4d7e8a6631fdb4e68d36649820e0c0993-d
EOF
cd .
"C:\\go\\pkg\\tool\\windows_amd64\\link.exe" -o "C:\\Users\\mattn\\AppData\\Local\\Temp\\go-build145566806\\b001\\foo.test.exe" -importcfg "C:\\Users\\mattn\\AppData\\Local\\Temp\\go-build145566806\\b001\\importcfg.link" -installsuffix race -s -w -buildmode=exe -buildid=SahtbTegVVJvP74olz_7/8pJx4XviJbtdY1jhw28h/woq27DTbfcLI0z8p91IG/SahtbTegVVJvP74olz_7 -race -extld=gcc "C:\\Users\\mattn\\AppData\\Local\\go-build\\a1\\a1cd7cb20a5f900d42bb15aed70e97bb42e4421b20bb2ee25b2ecf2e983957db-d"
# github.com/mattn/foo (testmain)
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): relocation target __acrt_iob_func not defined
runtime/cgo(.text): undefined: "__acrt_iob_func"
runtime/cgo(.text): undefined: "__acrt_iob_func"
runtime/cgo(.text): undefined: "__acrt_iob_func"
runtime/cgo(.text): undefined: "__acrt_iob_func"
runtime/cgo(.text): undefined: "__acrt_iob_func"
rm -r $WORK\b001\
FAIL	github.com/mattn/foo [build failed]

[alexbrainman]

@mattn are you sure?

I cannot reproduce this:

c:\Users\Alex\dev\src\issue\go\23649>type foo_test.go
package foo

import (
        "testing"
)

func TestSimple(t *testing.T) {
        got := 1
        want := 2
        if got != want {
                t.Fatalf("want %v, but %v:", want, got)
        }
}

c:\Users\Alex\dev\src\issue\go\23649>go version
go version devel +6f37fee354 Wed Jan 31 22:12:10 2018 +0000 windows/amd64

c:\Users\Alex\dev\src\issue\go\23649>go test -race
--- FAIL: TestSimple (0.00s)
        foo_test.go:11: want 2, but 1:
FAIL
exit status 1
FAIL    issue/go/23649  0.052s

c:\Users\Alex\dev\src\issue\go\23649>

Alex

[mattn]

Yes, I found this on my Windows7. Now I'm on Windows10 and reproduce this. This is gcc version I use.

gcc (Rev1, Built by MSYS2 project) 7.3.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[mattn]

If I put following code on same directory, go test -race works fine.

package foo

//
import "C"

[alexbrainman]

gcc (Rev1, Built by MSYS2 project) 7.3.0

The latest of gcc I have is version 5. How do I install 7.3.0 ?

Thank you

Alex

[mattn]

I installed gcc 7.3.0 from https://github.com/Alexpux/MINGW-packages

Yesterday, I updated mingw gcc using pacman command. And it seems that this problem disappears. I apologize for bothering you

[alexbrainman]

Yesterday, I updated mingw gcc using pacman command. And it seems that this problem disappears. I apologize for bothering you

No worries. All is good.

Alex

[mattn]

I could reproduce this on my Windows 10. So I reopen this.