steam-frame/FEX-Emu--FEX
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Code Issues Packages Projects Releases 67 Wiki Activity
2,637 Commits 11 Branches 71 Tags
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Commit Graph
150 Commits
Author SHA1 Message Date
Ryan Houdek 0b7587768d Unifies 32bit and 64bit clone implementation 
Syscall entry points still have different argument orders,
Moves the arguments to the clone3 argument structure and passes to generic handler.
Also implements clone3 while doing this
 2021-05-27 23:00:00 -07:00
Ryan Houdek d115a57fe6 Implements support for execveat 2021-05-27 22:59:57 -07:00
Ryan Houdek 4c74478610 Implements iouring syscalls 
This is a very simple initial implementation.
io_uring allows some things that are hard to capture like setting personalities.

Assume sane usage for now
 2021-05-27 22:59:55 -07:00
Ryan Houdek 77a111cf19 Implements process_madvise 64-bit syscall 2021-05-27 22:59:52 -07:00
Ryan Houdek 7e551e5f88 Implements epoll_pwait2 syscall 2021-05-27 22:59:49 -07:00
Ryan Houdek 9d44dfdca6 Actually updated the hardcoded guest kernel locations 
Just a couple of files and uname syscall
 2021-05-27 22:59:47 -07:00
Ryan Houdek a7858f4d37 Calculates a guest kernel version for FEX instead 
Takes the host kernel version and makes sure it fits in our supported kernel range
Minimum kernel version FEX reports to the guest is 5.0
Maximum kernel version FEX reports to the guest is currently 5.12
 2021-05-27 22:59:44 -07:00
Ryan Houdek 6b3b10f8ae Implements pidfd_send_signal syscall 
Now that we know when to forward a siginfo_t to the guest, we can allow this syscall
 2021-05-27 22:59:42 -07:00
Ryan Houdek 9d5fa64f68 Implements pidfd_open syscall 2021-05-27 22:59:39 -07:00
Ryan Houdek 8b3bbd0ea1 Implements openat2 2021-05-27 22:59:37 -07:00
Ryan Houdek cc477b6964 Implements close_range syscall 2021-05-27 22:59:34 -07:00
Ryan Houdek 912d019ad8 Implements pidfd_getfd syscall 
Rise of the Tomb Raider launcher uses this without checking host kernel version.
Might be part of their crash handler.
 2021-05-27 18:44:12 -07:00
Stefanos Kornilios Mitsis Poiitidis 370f36c8f7 Merge pull request #1027 from Sonicadvance1/fix_ppoll 
ppoll fixes
 2021-05-18 09:20:32 +03:00
Ryan Houdek 3d09a55715 Ignore non-canonical addresses in FS/GS setting 2021-05-12 22:17:13 -07:00
Ryan Houdek 8cf1b0263d Removes syscall forward errno preprocessor implementation 
This was causing issues with syscalls returning errors.
Remove it and move on
 2021-05-12 21:53:45 -07:00
Stefanos Kornilios Mitsis Poiitidis 7ecaf24e8b Merge pull request #1030 from Sonicadvance1/disable_userfaultfd 
Disable userfaultfd until supported
 2021-05-12 09:45:43 +03:00
Stefanos Kornilios Mitsis Poiitidis 52f7ea5433 Merge pull request #1029 from Sonicadvance1/fix_fadvise64 
Fix fadvise64
 2021-05-12 09:45:21 +03:00
Stefanos Kornilios Mitsis Poiitidis 023a32ea26 Merge pull request #1026 from Sonicadvance1/fix_flag_remapping 
Handle FD flag remapping correctly
 2021-05-12 09:39:39 +03:00
Stefanos Kornilios Mitsis Poiitidis 36980131e0 Merge pull request #1024 from Sonicadvance1/signal_fixes 
Sigaction fixes
 2021-05-12 09:34:51 +03:00
Stefanos Kornilios Mitsis Poiitidis b2eb13fa1c Merge pull request #1023 from Sonicadvance1/emulate_map_32bit 
Emulate MAP_32BIT in mmap
 2021-05-12 09:34:18 +03:00
Stefanos Kornilios Mitsis Poiitidis 27b6497bee Merge pull request #1031 from Sonicadvance1/fix_epoll 
Use epoll syscalls directly
 2021-05-12 09:33:59 +03:00
Stefanos Kornilios Mitsis Poiitidis 66ee89ec8a Merge pull request #1022 from Sonicadvance1/fix_uname 
Fix uname
 2021-05-12 09:22:58 +03:00
Stefanos Kornilios Mitsis Poiitidis bee73199e1 Merge pull request #1021 from Sonicadvance1/fix_thread_self 
Support redirecting thread-self exe softlink
 2021-05-12 09:22:36 +03:00
Stefanos Kornilios Mitsis Poiitidis 0e6db843ef Merge pull request #1020 from Sonicadvance1/invalid_syscall 
Return ENOSYS on too large of syscall number
 2021-05-12 09:21:17 +03:00
Ryan Houdek 783ceb2d56 Use epoll syscalls directly 2021-05-11 18:51:06 -07:00
Ryan Houdek d1fc65daaa Disable userfaultfd until supported 
Until we properly wrap this we can't support it
 2021-05-11 18:44:31 -07:00
Ryan Houdek 94f464e1a4 Fix fadvise64 
posix variant still doesn't quite match the actual syscall implementation
 2021-05-11 18:39:00 -07:00
Ryan Houdek dfb15aaeb9 ppoll fixes 
glibc implementation makes a copy of the timeout and the kernel is expected to update it
Can't use the glibc implementation because of this.
 2021-05-11 18:33:24 -07:00
Ryan Houdek 565f0e6af3 Handle FD flag remapping correctly 
FD flag remapping was broken. It would remap one flag on to another and then the next check would remap it back.

Instead keep a mask of the flags to be remapped then remap them all at the end.
Also goes through the ops and fixes a few cases where it was remapping wrong flags.
 2021-05-11 18:29:21 -07:00
Ryan Houdek b03554bb7d Sigaction fixes 
Check for invalid sigsetsize

Since we are using SignalDelegator we don't use errno, so just return Result and check for Result == 0
 2021-05-11 18:22:23 -07:00
Ryan Houdek 7b8cb5107a Emulate MAP_32BIT in mmap 
If we are on AArch64 then MAP_32BIT doesn't exist.
Emulate it by setting the address as a hint to the kernel so it scans bottom up
 2021-05-11 18:18:59 -07:00
Ryan Houdek cbb20ef6c6 Fix uname 
There is a domainname variable that was missed
 2021-05-11 18:16:35 -07:00
Ryan Houdek 298481f9af Support redirecting thread-self exe softlink 2021-05-11 18:15:14 -07:00
Ryan Houdek 0d108cd8fd Return ENOSYS on too large of syscall number 2021-05-11 18:14:02 -07:00
Ryan Houdek 490d7e57d7 Arguments file needs one additional null argument to finish the arguments. 2021-05-11 18:12:16 -07:00
Ryan Houdek fe77c3ef06 Fix cpuinfo needing tabs on its options and PM option 
Depending on option it is split by anywhere from zero to two tabs
 2021-05-11 18:12:16 -07:00
Ryan Houdek eb02afe952 Merge pull request #1013 from Sonicadvance1/fix_openat_symlinks 
Handles symlinks in rootfs in openat
 2021-05-11 17:52:07 -07:00
Ryan Houdek 83b4188569 Microoptimization for the DRM ioctls 
For DRM applications have a three FD deep MRU cached for faster lookups of FD to DRM handlers.
In a completely DRM ioctl bound situation like es2gears or GL application without threaded context
Then this puts us /nearly/ at the performance of calling the ioctl32 handler directly.
Sadly there is overhead that can't be overcome so this is the best that can be done from userland
 2021-05-06 02:55:22 -07:00
Ryan Houdek 9be67fb22a Merge pull request #1009 from Sonicadvance1/handle_self 
Handle more cases of an application pinging self
 2021-05-05 14:51:11 -07:00
Ryan Houdek 19e45544fb Handles symlinks in rootfs in openat 
This fixes an issue where rootfs has symlinks to other things in the rootfs so we need to track it through.

Relies on #1009 to be merged first.
Fixes any application that relies on libblas, mpv for example.
 2021-05-04 22:13:52 -07:00
Ryan Houdek d9d5303aa0 Fixes ioctl returning error 
Fixes evdev device description at the very least
 2021-05-04 18:45:25 -07:00
Ryan Houdek ac97c05271 Handle more cases of an application pinging self 
AppImage uses this to inspect its own executable to ensure it is an AppImage file.
 2021-05-04 18:09:15 -07:00
Ryan Houdek 3399052eaa Make sure to setup ioctl32 handler table 2021-05-02 14:30:23 -07:00
Ryan Houdek 3df951695e Adds Nouveau and Lima ioctl32 handlers 2021-05-02 13:05:46 -07:00
Stefanos Kornilios Mitsis Poiitidis 6dc69063f3 Merge pull request #1005 from Sonicadvance1/remove_numa 
Remove reliance on librt and libnuma
 2021-05-02 09:50:10 +03:00
Stefanos Kornilios Mitsis Poiitidis 2916c4f34c Merge pull request #1004 from Sonicadvance1/redirect_self 
Redirect applications using execve with self
 2021-05-02 09:49:55 +03:00
Stefanos Kornilios Mitsis Poiitidis 04137d0da5 Merge pull request #1002 from Sonicadvance1/sigtimedwait 
Initial base implementation of sigtimedwait
 2021-05-02 09:49:49 +03:00
Stefanos Kornilios Mitsis Poiitidis afa81294c9 Merge pull request #1001 from Sonicadvance1/more_ioctl32_emulation 
More ioctl32 emulation
 2021-05-02 09:49:44 +03:00
Ryan Houdek 86bdbe65e5 Implements missed x86-32 message queue syscalls 
Nothing hit these but good to have them implemented
 2021-05-01 17:40:33 -07:00
Ryan Houdek 63dee0e132 Remove reliance on librt and libnuma 
These can fall down the raw syscall path
 2021-05-01 17:40:33 -07:00