Re: [Sdcc-user] New __sdcccall(0) attribute does not work with __naked - bug?

[Philipp K. K. <pk...@sp...>]

Am 24.02.22 um 16:47 schrieb Basil Hussain:
> I have just installed the recent Windows x64 4.2.0-rc1 release and tried 
> updating one of my projects to use '__sdcccall(0)' for existing STM8 
> assembly code, and was puzzled to find that it had no effect - some 
> functions marked with that attribute were still being called with the 
> new ABI!
> 
> After doing some digging, I discovered that functions where the new 
> attribute had no effect were functions that were also declared with 
> '__naked'.
> 
> […}
> 
> You can see that test_1() has its argument pushed to the stack before 
> being called, as per the old ABI, but test_2() does not - its argument 
> is incorrectly passed in the A register, as per the new ABI.
> 
> Is this a bug? I don't believe '__naked' should be changing anything 
> about how a function is *called*, only whether prologue and epilogue 
> code inside that function is generated.

Looks like a bug to me. Please file a bug report.

Philipp