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修复了内核uprobe绑定接口不一致的问题,使libbpf代码测试通过 #487
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GorilaMond
requested review from
helight,
LinkinPF and
chenamy2017
as code owners
August 3, 2023 13:20
LinkinPF
previously approved these changes
Aug 5, 2023
helight
approved these changes
Aug 11, 2023
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不错,readme 和开发记录都是挺好的做法,可以在周例会上展示一下
chenamy2017
approved these changes
Aug 11, 2023
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libbpf项目实现在GitHub测试时报出很多错误,但在本地没有报错。
经过在本地与GitHub测试镜像相同版本Ubuntu22.04的docker中进行预处理、头文件查找,发现是uprobe的跟踪方式变了
在22.04中,uprobe跟踪函数
bpf_program__attach_uprobe_opts
的参数struct bpf_uprobe_opts
的定义为:而本地新版系统的
struct bpf_uprobe_opts
中多了一个字段const char *func_name
,方便设置uprobe回调函数的跟踪点。解决方法:加入版本控制宏,将不同版本内核的接口封装为同一个宏接口