分享如何阅读Go源码

在线调试

(dlv) grs
* Goroutine 1 - User: ./main.go:7 main.main (0x10aba6f) (thread 218565)
  Goroutine 2 - User: /usr/local/opt/go/libexec/src/runtime/proc.go:367 runtime.gopark (0x1035232) [force gc (idle)]
  Goroutine 3 - User: /usr/local/opt/go/libexec/src/runtime/proc.go:367 runtime.gopark (0x1035232) [GC sweep wait]
  Goroutine 4 - User: /usr/local/opt/go/libexec/src/runtime/proc.go:367 runtime.gopark (0x1035232) [GC scavenge wait]
  Goroutine 5 - User: /usr/local/opt/go/libexec/src/runtime/proc.go:367 runtime.gopark (0x1035232) [finalizer wait]

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(dlv) bt
0  0x0000000001047e15 in runtime.growslice
   at /usr/local/opt/go/libexec/src/runtime/slice.go:183
1  0x00000000010aba6f in main.main
   at ./main.go:7
2  0x0000000001034e13 in runtime.main
   at /usr/local/opt/go/libexec/src/runtime/proc.go:255
3  0x000000000105f9c1 in runtime.goexit
   at /usr/local/opt/go/libexec/src/runtime/asm_amd64.s:1581

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(dlv) regs
   Rip = 0x0000000001047e15
   Rsp = 0x000000c00010de68
   Rax = 0x00000000010b2f00
   Rbx = 0x0000000000000000
   Rcx = 0x0000000000000000
   Rdx = 0x0000000000000008
   Rsi = 0x0000000000000001
   Rdi = 0x0000000000000000
   Rbp = 0x000000c00010ded0
    R8 = 0x0000000000000000
    R9 = 0x0000000000000008
   R10 = 0x0000000001088c40
   R11 = 0x0000000000000246
   R12 = 0x000000c00010df60
   R13 = 0x0000000000000000
   R14 = 0x000000c0000001a0
   R15 = 0x00000000000000c8
Rflags = 0x0000000000000202     [IF IOPL=0]
    Cs = 0x000000000000002b
    Fs = 0x0000000000000000
    Gs = 0x0000000000000000

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(dlv) locals
newcap = 1
doublecap = 0

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总结

看源代码的过程是没有捷径可走的，如果说有，那就是可以先看一些大佬输出的底层原理的文章，然后参照其文章一步步入门源码阅读，最终还是要自己去克服这个困难，本文介绍了我自己查看源码的一些方式，你是否有更简便的方式呢？欢迎评论区分享出来～。

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