uprobe的用法以及原理

参考

• Uprobe-tracer: Uprobe-based Event Tracing
• 深入ftrace uprobe原理和功能介绍
• Linux uprobe: User-Level Dynamic Tracing
• perf-tools -- uprobe
• 用bpftrace跟踪C++代码
• What is Linux utility to mangle a C++ symbol name?

示例

• 跟踪C++程序：/system/bin/logd

# 查看支持的跟踪点
bpftrace -l 'u:/system/bin/logd:*'
bpftrace -l 'u:/system/bin/logd:*' | c++filt
bpftrace  -e 'u:/system/bin/logd:_ZN18SerializedLogChunk3LogEm8log_timejiiPKct {print(ustack);}'