Golang运行时重新编译

Question

Well ,I sooooo flesh for the Golang . And I get a mission to recompile the Golang 's runtime via this blog.

One way is to change this default number in the GO runtime (GCC-GO or GC) and recompile the runtime. In proc.go, you can change the line sched.maxmcount = 10000 to a number that is appropriate.

First: recompile the whole golang.

I follow this Installing Go from source ,and execute this cmd：

./all.bash

Output is :

Building Go bootstrap tool.
cmd/dist
import cycle not allowed
package cmd/dist
    imports bytes
    imports errors
    imports runtime
    imports runtime/internal/atomic
    imports unsafe
    imports runtime

It seems everything work well, but while I check about the go cmd，it's the same. Also ,I can't find any change to bin or pkg dir.

Then ,try to build pkg

go install src/runtime

Also, it doesn't come out any error and I can't find any target build.

I have no any idea how to do it :(

Any suggestion well so appresiate !

Answer 1

You install packages by their import path, so you don't use the src/ prefix.

To recompile the runtime package, use:

$ go install -a -v runtime
runtime/internal/sys
runtime/internal/atomic
runtime