如何调试nodejs的二进制模块？ [英] How to debug binary module of nodejs?

问题描述

我有一个用C ++编写的node.js模块，为C ++库提供了一些绑定。该库崩溃与SIGSEGV，所以我需要调试它与GDB，并找出什么问题。

我已经有模块的源在 ./ node_modules / somelib / ，如果我去那个文件夹并输入 npm install ，编译库就可以通过require 'somelib'）from node.js。我可以附加gdb到节点并重现错误，但在stacktrace我只看到 node_modules / somelib / Release / somelib.node 。

我不知道这是否重要，但是库是使用 node-gyp >

• 问题1：如何加载源代码或将gdb指向源代码？


• 问题2：如何配置 node-gyp 以产生调试符号？





解决方案

我在 node-gyp 文档中找到了答案。解决方案是使用 - debug 标志来调用构建过程。这意味着调用 node-gyp configure --debug 和/或 node-gyp build --debug 。然后代替 Release 文件夹，将创建一个 Debug 文件夹。 gdb会自动加载源文件。




I have a node.js module written in C++ that provides some bindings for a C++ library. The library crashes with SIGSEGV, so I need to debug it with GDB and find out what goes wrong.

I already have the source for the module in ./node_modules/somelib/ and if I go to that folder and type npm install the library is compiled and can be used through a require('somelib') from node.js. I can attach gdb to node and reproduce the error, but in the stacktrace I just see node_modules/somelib/Release/somelib.node.

I'm not sure if this is important but the library is compiled using node-gyp.

• Question 1: How do I load the source code or point gdb to the source code?
• Question 2: How do I configure node-gyp to produce debug symbols?

解决方案

I just found the answer to this in the node-gyp documentation. The solution is to invoke the build process with the --debug flag. That means to invoke node-gyp configure --debug and/or node-gyp build --debug. Then instead of a Release folder a Debug folder will be created. gdb will then automatically load the source files.

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