panic: runtime error: index out of range。 cmd/link/internal/ld.decodetypeKind(...)

[jxhb]

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

$ go version
go version go1.12.17 darwin/amd64

Does this issue reproduce with the latest release?

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

go env Output

$ go env
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/cc/Library/Caches/go-build"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/cc/go"
GOPROXY=""
GORACE=""
GOROOT="/usr/local/go"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GCCGO="gccgo"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/t3/21_3m2tj3yn846__rrn2nn1c0000gn/T/go-build740490844=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

go build

panic: runtime error: index out of range

goroutine 1 [running]:
cmd/link/internal/ld.decodetypeKind(...)
/usr/local/go/src/cmd/link/internal/ld/decodesym.go:69
cmd/link/internal/ld.newtype(0xc00004e000, 0xc00e722660, 0xc01f5b2f40)
/usr/local/go/src/cmd/link/internal/ld/dwarf.go:423 +0x29e1
cmd/link/internal/ld.defgotype(0xc00004e000, 0xc00e722660, 0x3c)
/usr/local/go/src/cmd/link/internal/ld/dwarf.go:418 +0x1c9
cmd/link/internal/ld.dwarfGenerateDebugInfo(0xc00004e000)
/usr/local/go/src/cmd/link/internal/ld/dwarf.go:1810 +0x8ee
cmd/link/internal/ld.Main(0x1431f20, 0x10, 0x20, 0x1, 0x7, 0x10, 0x1278d61, 0x1b, 0x1275a70, 0x14, ...)
/usr/local/go/src/cmd/link/internal/ld/main.go:211 +0xb95
main.main()
/usr/local/go/src/cmd/link/main.go:65 +0x1d0

// Type.commonType.kind
func decodetypeKind(arch *sys.Arch, s sym.Symbol) uint8 {
return s.P[2arch.PtrSize+7] & objabi.KindMask // 0x13 / 0x1f
}

What did you expect to see?

go build success

What did you see instead?

panic: runtime error: index out of range

goroutine 1 [running]:
cmd/link/internal/ld.decodetypeKind(...)

[seankhliao]

go1.12 is no longer supported.

[jxhb]

If I want to solve this problem, do I have to upgrade the go version?

[jxhb]

go1.12 is no longer supported.

If I want to solve this problem, do I have to upgrade the go version?

[ianlancetaylor]

@jxhb We don't know what the problem is. When we say that Go 1.12 is no longer supported, we mean that we aren't going to investigate problems reported against it. We don't have the time to look into problems with such an old release. That is especially true since most likely our advice would be to update to a supported release anyhow.

So, yes, you should update to a newer version, but, no, we can't promise that that will fix the problem. It probably will, but we don't actually know. Sorry.