Go: print variables with gdb

Question

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) } ``` 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" ```

Accepted Answer

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

You can use `go build -gcflags '-N'`.

Go: print variables with gdb

Solution

Problem