【golang】16、dlv 调试工具、vscode+ssh 远程调试

Goland Debug 模式崩溃

有时遇到如下现象： Golang Run 模式正常，Debug 无 BreakPoint 模式正常，但 Debug 加 BreakPoint 就会偶现 panic，panic 信息如下。

panic: runtime error: index out of range [7] with length 0

goroutine 112 [running]:
encoding/binary.littleEndian.Uint64(...)
        /opt/buildAgent/temp/buildTmp/go/src/encoding/binary/binary.go:77
github.com/go-delve/delve/pkg/proc/gdbserial.(*gdbRegisters).SP(0xc000353ef8, 0xc0006bfc10)
        /opt/buildAgent/work/4c3e5e3eabfaf2d2/pkg/proc/gdbserial/gdbserver.go:1810 +0x85
github.com/go-delve/delve/pkg/proc.funcCallStep(0xc0025941e0, 0xc0006bfc10, 0x17255d8, 0xc000353ee0, 0xc, 0xc00244aac8, 0x13, 0x0)
        /opt/buildAgent/work/4c3e5e3eabfaf2d2/pkg/proc/fncall.go:834 +0x74c
github.com/go-delve/delve/pkg/proc.evalFunctionCall(0xc0025941e0, 0xc0007bd140, 0xc000065cf0, 0x109cb76, 0x171e560)
        /opt/buildAgent/work/4c3e5e3eabfaf2d2/pkg/proc/fncall.go:358 +0xa65
github.com/go-delve/delve/pkg/proc.(*EvalScope).evalAST(0xc0025941e0, 0x171d990, 0xc0007bd140, 0x1, 0x1, 0x64)
        /opt/buildAgent/work/4c3e5e3eabfaf2d2/pkg/proc/eval.go:708 +0x312
github.com/go-delve/delve/pkg/proc.(*EvalScope).EvalExpression(0xc0025941e0, 0xc002b69740, 0x12, 0x1, 0x1, 0x64, 0x64, 0xffffffffffffffff, 0x0, 0x0, ...)
        /opt/buildAgent/work/4c3e5e3eabfaf2d2/pkg/proc/eval.go:181 +0x69e
created by github.com/go-delve/delve/pkg/proc.EvalExpressionWithCalls
        /opt/buildAgent/work/4c3e5e3eabfaf2d2/pkg/proc/fncall.go:197 +0x356

Debugger finished with the exit code 2

其实 Goland 和 VsCode 的 Debug 都是基于 delve 实现的

解决方案：

• 重装最新版 Goland，安装最新版 go（如 brew upgrade go）
• 查看 dlv 版本（which dlv），源码安装 dlv，实测卸载 dlv 后 Goland 也可以跑起来

参考：https://www.cnblogs.com/yrxing/p/14830827.html