如何获取简短Go程序的汇编输出？

Question

I have this program written in Go:

package main

func add(a, b int) int {
    return a + b
}

func main () {
    add(1,2)
}

For curiosity's sake, I would like to see what this program looks like in assembly.

I found a couple of ways to output assembly instructions from a Go program, mainly:

go tool compile -S file.go > file.S

Or

go tool objdump executable > disassembly

But it seems like both of these produce totally different outputs.

How can I print out human-readable assembly instructions that make up my Go program?

Answer 1

Both of these give you human-readable assembly, it's just that the Go toolchain uses Plan 9 assembly syntax which is a bit weird to the untrained eye. Use a tool like objdump from the GNU binutils to get more familiar syntax.