动态跟踪背景介绍 https://www.jianshu.com/p/e3445879495b
官方文档:
The ORCs are coming https://lwn.net/Articles/728339/
The Linux x86 ORC Stack Unwinder https://www.codeblueprint.co.uk/2017/07/31/the-orc-unwinder.html
OBJTOOL Documentation https://docs.bvstools.com/home/objtool
DWARF Standard https://dwarfstd.org/Dwarf5Std.php