Not the end of the world. Cross platform (and "architecture") hooking libraries exist for this very reason[1]. It's not a hard issue, and symbol lookup for callstacks is not an issue either[2]. I wouldn't say it's trivial but it's certainly not novel.

[1] http://www.gamedeception.net/content/193-Cross-platform-x86-... [2] http://www.kernel.org/doc/man-pages/online/pages/man3/backtr...