gdb调试golang中的内部运行时信息(如:goroutine)

最近使用Go写crawler，使用gdb后发现不能显示gorountine的信息。

查看了下golang的文档 https://golang.org/doc/gdb

A recent extension mechanism to GDB allows it to load extension scripts for a given binary. The tool chain uses this to extend GDB with a handful of commands to inspect internals of the runtime code (such as goroutines) and to pretty print the built-in map, slice and channel types.

If you'd like to see how this works, or want to extend it, take a look at src/runtime/runtime-gdb.py in the Go source distribution. It depends on some special magic types (hash) and variables (runtime.m and runtime.g) that the linker (src/cmd/ld/dwarf.c) ensures are described in the DWARF code.

source下/usr/local/go/src/runtime/runtime-gdb.py这个文件就可以了打印运行时一些信息了.

注意:

如果遇到上面这个错误， 直接下载 https://github.com/sokoide/go-gdb

这个里面的runtime-gdb.py进行替换。

另外提供一个tip, 由于每次source其实非常麻烦，所以gdb支持加载配置

gdb -x gdb.config

gdb.config 可以加入你想要的语句，如:

source /usr/local/go/src/runtime/runtime-gdb.py

本文来源: http://vimer.me/articles/gdb-debugging-golang-the-goroutine.html