Commit Graph
12 Commits
Author SHA1 Message Date
Ryan Houdek d3bf87f4f4 Merge pull request #4985 from Sonicadvance1/fex-atomic
Support (downstream) kernel-side unaligned atomic handling (The rebase sequel)
2025-11-20 17:09:29 -08:00
Ryan Houdek 387201815b Config: Add option to enable or disable kernel backpatchin on unaligned atomic
Default to enabled because this is the config we expect by default.
In the future will get some benchmarking in various games like
Assassin's Creed, and Call of Duty.
2025-11-20 12:04:59 -08:00
Billy Laws 04259f031d FEXLoader: Enable downstream kernel-side unaligned atomic handling 2025-11-20 12:04:59 -08:00
Tony Wasserka 90cb76312c LinuxSyscalls: Implement code map writing for future code caching 2025-11-20 19:13:18 +01:00
Ryan Houdek 42d0324304 FEX: Moves FEX thunk callback function generation to the frontend
Adds it to the VDSO handling, it's not necessarily a VDSO function but
it behaves as such as it is in every single process. This means we get
to reuse the mapped page for every process when thunks are built,
shaving a page out of 32-bit processes.

Also, fixes a bug in guest VDSO symbol loading where clang sticks all
symbols in to `.dynsym` where gcc sticks them in to `.symtab`. Search
both. This effectively meant the couple of guest VDSO symbols were
always failing to get found, causing us to allocate yet another page on
32-bit. So effectively three pages stolen.

This also means we can remove the Linux specific X86HelperGen stuff from
FEXCore, only passing a single "VDSO" function pointer to the backend
for the dispatcher. Once again moving the Linux stuff to the frontend is
good.

Fixes an assert about about untracked noexec code `NoExec
instruction in entry block: FFFFE000` whenever thunk callbacks were
used.
2025-11-18 14:15:04 -08:00
Tony Wasserka b228746f1d FEXInterpreter: Fix incorrect value assignment
Previously this was overriding the cached value in the local Value object.
The global SilentLog variable never got updated, so a stale value would be
used.
2025-11-14 11:32:11 +01:00
Tony Wasserka 5a002ad08d Revert "Merge pull request #4969 from Sonicadvance1/rpmalloc"
This reverts commit e1a45a2720, reversing
changes made to bd7edd8651.

The change rendered pressure-vessel non-functional on muvm-based setups
like Fedora Asahi Remix.
2025-10-30 15:22:17 +01:00
Ryan Houdek 985bdf2b6c Switch over to rpmalloc instead of jemalloc.
rpmalloc is currently very aggressively configured which causes
significant reductions in resident memory over jemalloc.

In Bayonetta's title screen it went from 963MB down to 834MB resident.
2025-10-27 11:23:13 -07:00
Lioncache 137aa59254 PrctlUtils: Move to include folder
We can group more prctl value handling in here.
2025-10-06 02:12:29 -04:00
Ryan Houdek 85e67f92c5 FEX: Rebrand FEXInterpreter as FEX
Still creates a copy of FEXInterpreter from FEX for downstream projects
to have some time to get off the old name. Creating a symlink is kind of
a pain in cmake so just doing an install copy is easy.
2025-09-15 13:06:48 -07:00
Ryan Houdek 7273041314 FEXInterpreter: Remove FEXLoader
Doesn't /quite/ remove the ArgumentLoader because it is intertwined with
LinuxEmulation in an annoying way that will take another step to remove.
2025-09-12 10:24:58 -07:00
Ryan Houdek ad70a60d05 FEXLoader: Move to FEXInterpreter
NFC

FEXInterpreter is the supported path, rename things to reflect that.
2025-09-11 12:09:23 -07:00