[Webkit-unassigned] [Bug 207119] Enable offlineasm debug annotations for GCC

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=207119

--- Comment #21 from Konstantin Tokarev <annulen at yandex.ru> ---

(In reply to Angelos Oikonomopoulos from comment #18)
> - unconditionally emit marker symbols around the top-level inline asm
> statement in LowLevelInterpreter.cpp, as this has nothing to do with the
> build toolchain and everything to do with the ability to debug using gdb.
> However, clang doesn't currently support __no_reorder__ so this is
> effectively a no-op.

Do I understand correctly that GDB just needs to have .cfi_startproc and .cfi_endproc here to start using following .file and .loc directives?

If so, we might want to emit minimal assembly stub here via asm volatile instead of inserting unused function body. I think it may express intention more clearly even for GCC case, and should work with Clang as well.

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