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[Feature Request]stackplz目前没有看到可以获取函数返回值的功能，是否可以支持？ #64

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wanix1988 opened this issue Nov 16, 2024 · 1 comment

wanix1988 commented Nov 16, 2024

使用stackplz -n com.xxx.yyy -s malloc[int],free[ptr] --stack -o tmp.log抓取系统调用时，可以实时获取函数参数，但是不能同时获取返回值，这样malloc返回的指针就不能跟free的参数匹配上，stackplz是否可以支持将参数和返回值同时打印出来？

Owner

SeeFlowerX commented Nov 19, 2024

没有名为malloc和free的系统调用
-w/--point 是 uprobe hook，如果你要返回值，可以指定具体的偏移去获取malloc；或者自己写代码，用uretprobe实现
你可以通过配置文件的形式去控制你需要的效果，但是我还是建议直接自己写脚本

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