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runtime: stack trace on linux/windows does not print correct value #46740

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tobiaskohlbau opened this issue Jun 14, 2021 · 2 comments
Closed

runtime: stack trace on linux/windows does not print correct value #46740

tobiaskohlbau opened this issue Jun 14, 2021 · 2 comments

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@tobiaskohlbau
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@tobiaskohlbau tobiaskohlbau commented Jun 14, 2021

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

$ go version
go version devel go1.17-326ea438bb Mon Jun 14 07:12:37 2021 +0000 darwin/arm6

Does this issue reproduce with the latest release?

No

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

go env Output
$ go env
GO111MODULE=""
GOARCH="arm64"
GOBIN=""
GOCACHE="/Users/tobias/Library/Caches/go-build"
GOENV="/Users/tobias/Library/Application Support/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="arm64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="/Users/tobias/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/tobias/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/Users/tobias/gotip"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/Users/tobias/gotip/pkg/tool/darwin_arm64"
GOVCS=""
GOVERSION="devel go1.17-326ea438bb Mon Jun 14 07:12:37 2021 +0000"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="/Users/tobias/src/github.com/tobiaskohlbau/gotest/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -arch arm64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/d2/cvcwxhxn7sg0qz9r12cnljtr0000gn/T/go-build173569476=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

package main

//go:noinline
func crash(x int) {
	panic(x)
}

func main() {
	crash(5)
}

Based on the release notes for the 1.17 beta 1 I've tried to check the new stack trace format. I've put together a simple program, which crashes und purpose. If run on darwin/arm64 the output is as expected:

darwin/arm64

panic: 5

goroutine 1 [running]:
main.crash(0x5)
	/Users/tobias/src/github.com/tobiaskohlbau/gotest/main.go:5 +0x38
main.main()
	/Users/tobias/src/github.com/tobiaskohlbau/gotest/main.go:9 +0x28
exit status 2

The same program cross compiled to linux/amd64 does not contain the value 0x5 but instead shows 0xc0000001a0. The output of 0xc0000001a0 is consistent for multiple machines and builds. I've tried to repeat this test with a windows machine and the output is also _0xc0000001a0. I'm not sure if this is related to linux<>darwin or to arm64<>amd64.

What did you expect to see?

I would expect to see 0x5 under linux/amd64 as well.

What did you see instead?

linux/amd64

panic: 5

goroutine 1 [running]:
main.crash(0xc0000001a0)
	/Users/tobias/src/github.com/tobiaskohlbau/gotest/main.go:5 +0x28
main.main()
	/Users/tobias/src/github.com/tobiaskohlbau/gotest/main.go:9 +0x1e
@seankhliao
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@seankhliao seankhliao commented Jun 14, 2021

Duplicate of #45728

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@seankhliao seankhliao marked this as a duplicate of #45728 Jun 14, 2021
@seankhliao seankhliao closed this Jun 14, 2021
@tobiaskohlbau
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@tobiaskohlbau tobiaskohlbau commented Jun 14, 2021

Damn, I searched for stack trace and stacktrace but did not find anything related.

Many thanks!

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2 participants