Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

x/tools/go/pointer: godoc pointer analysis failure #11968

Closed
jonathanpittman opened this issue Jul 31, 2015 · 1 comment
Closed

x/tools/go/pointer: godoc pointer analysis failure #11968

jonathanpittman opened this issue Jul 31, 2015 · 1 comment
Labels
FrozenDueToAge
Milestone
Unreleased

Comments

@jonathanpittman
Copy link 

$ go version
go version go1.4.2 darwin/amd64

$ go env
GOARCH="amd64"
GOBIN=""
GOCHAR="6"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/jmpittman/gopath"
GORACE=""
GOROOT="/usr/local/go"
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fno-common"
CXX="clang++"
CGO_ENABLED="1"

I was running godoc with these flags...

godoc -analysis="type,pointer" -http=":6060" -play -timestamps -v

and eventually this showed up...

2015/07/31 11:43:05 Computing implements relation...
2015/07/31 11:43:06 Extracting type info...
2015/07/31 11:43:10 Visit instructions...
2015/07/31 11:43:11 Visit instructions complete
2015/07/31 11:43:11 Type analysis complete.
2015/07/31 11:43:11 Pointer analysis running...
Internal panic in pointer analysis:
/var/folders/00/0sdwh000h01000cxqpysvccm0035qk/T/makerelease385556073/src/golang.org/x/tools/go/pointer/analysis.go:222 (0x3aa3cc)
/usr/local/go/src/runtime/asm_amd64.s:401 (0x33185)
    call16: CALLFN(·call16, 16)
/usr/local/go/src/runtime/panic.go:387 (0x20398)
    gopanic: reflectcall(unsafe.Pointer(d.fn), deferArgs(d), uint32(d.siz), uint32(d.siz))
/usr/local/go/src/runtime/panic.go:12 (0x1f52e)
    panicindex: panic(indexError)
/var/folders/00/0sdwh000h01000cxqpysvccm0035qk/T/makerelease385556073/src/golang.org/x/tools/go/pointer/gen.go:528 (0x37e623)
/var/folders/00/0sdwh000h01000cxqpysvccm0035qk/T/makerelease385556073/src/golang.org/x/tools/go/pointer/gen.go:746 (0x380814)
/var/folders/00/0sdwh000h01000cxqpysvccm0035qk/T/makerelease385556073/src/golang.org/x/tools/go/pointer/gen.go:953 (0x382cd0)
/var/folders/00/0sdwh000h01000cxqpysvccm0035qk/T/makerelease385556073/src/golang.org/x/tools/go/pointer/gen.go:1208 (0x387347)
/var/folders/00/0sdwh000h01000cxqpysvccm0035qk/T/makerelease385556073/src/golang.org/x/tools/go/pointer/gen.go:1271 (0x387cb1)
/var/folders/00/0sdwh000h01000cxqpysvccm0035qk/T/makerelease385556073/src/golang.org/x/tools/go/pointer/analysis.go:287 (0x374f03)
/var/folders/00/0sdwh000h01000cxqpysvccm0035qk/T/makerelease385556073/src/golang.org/x/tools/godoc/analysis/analysis.go:562 (0x18072f)
/var/folders/00/0sdwh000h01000cxqpysvccm0035qk/T/makerelease385556073/src/golang.org/x/tools/godoc/analysis/analysis.go:504 (0x17f39a)
/usr/local/go/src/runtime/asm_amd64.s:2232 (0x352c1)
    goexit: 
2015/07/31 11:43:18 Pointer analysis failed: internal error in pointer analysis: runtime error: index out of range (please report this bug).
@ianlancetaylor ianlancetaylor added this to the Unreleased milestone Jul 31, 2015
@alandonovan
Copy link
Contributor

This looks from the stack trace to be a bug that was fixed a long time ago by https://golang.org/cl/173540043.

Are you sure you're using a recent version of the tool?

@golang golang locked and limited conversation to collaborators Oct 4, 2016
Sign up for free to subscribe to this conversation on GitHub. Already have an account? Sign in.
Assignees
No one assigned
Labels
FrozenDueToAge
Projects
None yet
Milestone
Unreleased
Development

No branches or pull requests
4 participants
@ianlancetaylor @jonathanpittman @alandonovan @gopherbot