JIT memory is now mapped with MAP_JIT, and pthread_jit_write_protect_np()
switches the calling thread's view of it, in place of two mprotect() calls
for every block compiled and every exit linked. This makes compiling
cheaper, which matters mostly in the first seconds after a game or state
loads. A hardened runtime without the JIT entitlement refuses the mapping,
and then it's mprotect() as before.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Rename LogType to Log
* Explicitly use the Log:: enum when logging. Allows for autocomplete when editing.
* Mac/ARM64 buildfix
* Do the same with the hle result log macros
* Rename the log names to mixed case while at it.
* iOS buildfix
* Qt buildfix attempt, ARM32 buildfix
Disabled block linking in this mode, can re-enable with some more work later.
To enable W^X on other platforms than iOS, simply change PlatformIsWXExclusive.
Opens up for having multiple JIT implementations available at runtime,
which could be use for experimenting with new JIT compiler types or for
unit testing one JIT on another architecture.
Very few of the newly virtual calls are on any sort of critical path so
hopefully there will not be a performance loss.
