Go：用gdb打印变量 [英] Go: print variables with gdb

问题描述

在这个程序中，如何使用调试器打断执行并打印出i的值？

In this program, how can break execution with the debugger and print the value of i?

package main

import "fmt"

func main() {
        x := "abc"
        i := 3
        fmt.Println(i)
        fmt.Println(x)
}

我无法打印i。但是我可以打印x：

I can't print i. However I can print x:

go build test.go
gdb test  
[...]Reading symbols from /home/ned/test...done.
(gdb) br 9
(gdb) run
(gdb) p i
No symbol "i" in current context.
(gdb) p x
$1 = "abc"

推荐答案

听起来像我可能被编译器优化过的变量。您是否尝试过构建调试版本？

It sounds like the variable i probably got optimized out of existence by the compiler. Did you try a debug build?

您可以使用 go build -gcflags'-N'。

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