No because of macOS weirdness you still have to map with RWX and MAP_JIT before you can use this. Split w^x is only useful in iOS where they don’t provide this functionality.
-j On Wednesday, January 13, 2021, Richard Henderson < richard.hender...@linaro.org> wrote: > On 1/12/21 5:28 PM, Roman Bolshakov wrote: > > Pages can't be both write and executable at the same time on Apple > > Silicon. macOS provides public API to switch write protection [1] for > > JIT applications, like TCG. > > So... considering that split w^x is now upstream, can we just call this > once > per thread to enable write and leave it write? > Since we have the separate rw mapping. > > > r~ >
