[FFmpeg-devel] [PATCH 2/2] lavc/rv40dsp: fix RISC-V chroma_mc

[Rémi Denis-Courmont]

Le sunnuntaina 1. joulukuuta 2024, 7.11.02 EET flow gg a écrit :
> Hi, why is there an issue with the ABI?

The ABI requires that the stack pointer is properly aligned AT ALL TIMES. 
Otherwise asynchronous signal handlers would break.

> I previously just thought that s0 shouldn't be used here.

Clobbering the frame pointer is best avoided to ease debugging.

-- 
Rémi Denis-Courmont
http://www.remlab.net/