diff options
| author | gdkchan <gab.dark.100@gmail.com> | 2022-05-02 20:30:02 -0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-05-02 20:30:02 -0300 |
| commit | 95017b8c66f70406e926b278ecdd6d4ec0a93110 (patch) | |
| tree | 3fc8e9a515f9adda96cf0c9d6983a375045ba68c /ARMeilleure/Signal/UnixSignalHandlerRegistration.cs | |
| parent | 4a892fbdc9059504358ddf41c27576032e1ce414 (diff) | |
Support memory aliasing (#2954)1.1.110
* Back to the origins: Make memory manager take guest PA rather than host address once again
* Direct mapping with alias support on Windows
* Fixes and remove more of the emulated shared memory
* Linux support
* Make shared and transfer memory not depend on SharedMemoryStorage
* More efficient view mapping on Windows (no more restricted to 4KB pages at a time)
* Handle potential access violations caused by partial unmap
* Implement host mapping using shared memory on Linux
* Add new GetPhysicalAddressChecked method, used to ensure the virtual address is mapped before address translation
Also align GetRef behaviour with software memory manager
* We don't need a mirrorable memory block for software memory manager mode
* Disable memory aliasing tests while we don't have shared memory support on Mac
* Shared memory & SIGBUS handler for macOS
* Fix typo + nits + re-enable memory tests
* Set MAP_JIT_DARWIN on x86 Mac too
* Add back the address space mirror
* Only set MAP_JIT_DARWIN if we are mapping as executable
* Disable aliasing tests again (still fails on Mac)
* Fix UnmapView4KB (by not casting size to int)
* Use ref counting on memory blocks to delay closing the shared memory handle until all blocks using it are disposed
* Address PR feedback
* Make RO hold a reference to the guest process memory manager to avoid early disposal
Co-authored-by: nastys <nastys@users.noreply.github.com>
Diffstat (limited to 'ARMeilleure/Signal/UnixSignalHandlerRegistration.cs')
| -rw-r--r-- | ARMeilleure/Signal/UnixSignalHandlerRegistration.cs | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/ARMeilleure/Signal/UnixSignalHandlerRegistration.cs b/ARMeilleure/Signal/UnixSignalHandlerRegistration.cs index 40268a91..12bda3de 100644 --- a/ARMeilleure/Signal/UnixSignalHandlerRegistration.cs +++ b/ARMeilleure/Signal/UnixSignalHandlerRegistration.cs @@ -21,6 +21,7 @@ namespace ARMeilleure.Signal static class UnixSignalHandlerRegistration { private const int SIGSEGV = 11; + private const int SIGBUS = 10; private const int SA_SIGINFO = 0x00000004; [DllImport("libc", SetLastError = true)] @@ -43,7 +44,17 @@ namespace ARMeilleure.Signal if (result != 0) { - throw new InvalidOperationException($"Could not register sigaction. Error: {result}"); + throw new InvalidOperationException($"Could not register SIGSEGV sigaction. Error: {result}"); + } + + if (OperatingSystem.IsMacOS()) + { + result = sigaction(SIGBUS, ref sig, out SigAction oldb); + + if (result != 0) + { + throw new InvalidOperationException($"Could not register SIGBUS sigaction. Error: {result}"); + } } return old; @@ -51,7 +62,7 @@ namespace ARMeilleure.Signal public static bool RestoreExceptionHandler(SigAction oldAction) { - return sigaction(SIGSEGV, ref oldAction, out SigAction _) == 0; + return sigaction(SIGSEGV, ref oldAction, out SigAction _) == 0 && (!OperatingSystem.IsMacOS() || sigaction(SIGBUS, ref oldAction, out SigAction _) == 0); } } } |