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105 Commits

Author SHA1 Message Date
Liam 45c87c7e6e core: refactor emulated cpu core activation 2023-12-04 10:37:16 -05:00
Liam dcfe674ed4 kernel: signal thread on termination completed 2023-10-21 20:03:41 -04:00
Liam bb195c2c2b kernel: add missing TLR clear 2023-10-21 20:03:41 -04:00
Liam 8c59543ee3 kernel: update KProcess 2023-10-21 20:03:41 -04:00
liamwhite d3da1e6517
Merge pull request #10990 from comex/ubsan 
Fixes and workarounds to make UBSan happier on macOS
 2023-07-26 10:33:28 -04:00
lat9nq 71b3b2a2f0 general: Silence -Wshadow{,-uncaptured-local} warnings 
These occur in the latest commits in LLVM Clang.
 2023-07-18 19:31:35 -04:00
comex d7c532d889 Fixes and workarounds to make UBSan happier on macOS 
There are still some other issues not addressed here, but it's a start.

Workarounds for false-positive reports:

- `RasterizerAccelerated`: Put a gigantic array behind a `unique_ptr`,
  because UBSan has a [hardcoded limit](https://stackoverflow.com/questions/64531383/c-runtime-error-using-fsanitize-undefined-object-has-a-possibly-invalid-vp)
  of how big it thinks objects can be, specifically when dealing with
  offset-to-top values used with multiple inheritance.  Hopefully this
  doesn't have a performance impact.

- `QueryCacheBase::QueryCacheBase`: Avoid an operation that UBSan thinks
  is UB even though it at least arguably isn't.  See the link in the
  comment for more information.

Fixes for correct reports:

- `PageTable`, `Memory`: Use `uintptr_t` values instead of pointers to
  avoid UB from pointer overflow (when pointer arithmetic wraps around
  the address space).

- `KScheduler::Reload`: `thread->GetOwnerProcess()` can be `nullptr`;
  avoid calling methods on it in this case.  (The existing code returns
  a garbage reference to a field, which is then passed into
  `LoadWatchpointArray`, and apparently it's never used, so it's
  harmless in practice but still triggers UBSan.)

- `KAutoObject::Close`: This function calls `this->Destroy()`, which
  overwrites the beginning of the object with junk (specifically a free
  list pointer).  Then it calls `this->UnregisterWithKernel()`.  UBSan
  complains about a type mismatch because the vtable has been
  overwritten, and I believe this is indeed UB.  `UnregisterWithKernel`
  also loads `m_kernel` from the 'freed' object, which seems to be
  technically safe (the overwriting doesn't extend as far as that
  field), but seems dubious.  Switch to a `static` method and load
  `m_kernel` in advance.
 2023-07-15 12:00:28 -07:00
Kelebek1 5da70f7197 Remove memory allocations in some hot paths 2023-06-22 08:05:10 +01:00
lat9nq e34e1b1c95 k_thread: Use a mutex and cond_var to sync bool 
std::atomic<bool> is broken on MinGW and causes deadlocks there.
Use a normal cond var in its stead.
 2023-06-17 15:25:36 -04:00
Liam 41d99aa89d memory: rename global memory references to application memory 2023-03-23 20:28:47 -04:00
Liam fb49ec19c1 kernel: use KTypedAddress for addresses 2023-03-22 09:35:16 -04:00
Liam c352381ce9 kernel: additional style fixes to KThread, KProcess 2023-03-12 22:10:27 -04:00
Liam 6bfb4c8f71 kernel: convert KThread to new style 2023-03-12 22:09:09 -04:00
Liam ac6cbb7134 kernel: prefer std::addressof 2023-03-12 22:09:09 -04:00
Liam c0b9e93b77 kernel: remove kernel_ 2023-03-12 22:09:09 -04:00
liamwhite 92c89312fc
Merge pull request #9923 from liamwhite/kht 
kernel: add timer pointer to KThreadQueue
 2023-03-10 16:19:41 -05:00
Liam 1776448df2 kernel: add timer pointer to KThreadQueue 2023-03-07 20:51:29 -05:00
Liam 484641003c kernel: clone fpu status on CreateThread 2023-03-07 19:18:06 -05:00
Liam 97f7f7bad5 kernel: be more careful about kernel address keys 2023-03-01 10:42:45 -05:00
Liam c4ba088a5d kernel: refactor priority inheritance to represent locks as C++ objects 2023-03-01 10:42:45 -05:00
Liam a936972614 service: refactor server architecture 
Converts services to have their own processes
 2023-02-21 12:19:25 -05:00
Liam 4363ca304a kernel: use GetCurrentProcess 2023-02-13 11:05:14 -05:00
Liam 693cad8e9b kernel: split SetAddressKey into user and kernel variants 2023-01-23 20:31:03 -05:00
Liam 5086380a63 kernel: fix incorrect locking order in suspension 2023-01-23 17:14:41 -05:00
Liam 4eece4d35d kernel/svc_types: refresh 2022-11-09 19:05:08 -05:00
Liam e6fe40428c service_thread: register service threads to the logical owner process 2022-11-04 09:18:57 -04:00
Liam eec3184bb0 k_thread: fix single core 2022-10-30 18:44:29 -04:00
Liam 1a378a7769 kernel: refactor dummy thread wakeups 2022-10-24 19:52:01 -04:00
bunnei 829e82e264 core: hle: kernel: Use result macros for new/changed code. 2022-10-18 19:13:35 -07:00
bunnei 57a77e9ff4 core: hle: kernel: k_thread: Implement thread termination DPC. 2022-10-18 19:13:34 -07:00
Liam a9a83fa726 kernel: Ensure all uses of disable_count are balanced 2022-07-14 22:47:18 -04:00
Liam 77137583cd kernel: be more careful about initialization path for HLE threads 2022-07-14 22:47:18 -04:00
Liam da07e13e07 kernel: fix single-core preemption points 2022-07-14 22:47:18 -04:00
Liam 21945ae127 kernel: fix issues with single core mode 2022-07-14 22:47:18 -04:00
Liam 0624c880bd kernel: use KScheduler from mesosphere 2022-07-14 22:47:18 -04:00
Liam 1611c53c12 kernel: fix usage of waiter_list in Finalize 2022-07-09 18:54:54 -04:00
liamwhite 7e75593c20
Merge pull request #8502 from liamwhite/end-wait 
kernel: clean up waiting implementation
 2022-07-07 17:31:49 -04:00
Liam ed0319cfed common/fiber: make fibers easier to use 2022-07-02 12:33:49 -04:00
german77 a7d9be1384 core: Replace all instances of ResultCode with Result 2022-06-26 20:21:37 -05:00
Liam 075155022e kernel: clean up waiting implementation 2022-06-25 13:36:14 -04:00
Liam 2c56e94702 kernel: make current thread pointer thread local 2022-06-23 00:28:00 -04:00
bunnei 9da4e62573
Merge pull request #8483 from liamwhite/fire-emblem-three-semaphores 
kernel: wait for threads to stop on pause
 2022-06-22 14:46:33 -07:00
Liam 24d7aaf43c kernel: wait for threads to stop on pause 2022-06-18 16:54:33 -04:00
Liam 744a208763 kernel: fix some uses of disable_count 2022-06-15 20:53:49 -04:00
Liam 888f499188 kernel: implement KProcess suspension 2022-06-14 10:04:11 -04:00
Liam 084d7d6b01 common: Change semantics of UNREACHABLE to unconditionally crash 2022-06-13 20:09:00 -04:00
Liam 07922abffc core/debugger: Support reading guest thread names 2022-06-01 21:25:32 -04:00
Morph 99ceb03a1c general: Convert source file copyright comments over to SPDX 
This formats all copyright comments according to SPDX formatting guidelines.
Additionally, this resolves the remaining GPLv2 only licensed files by relicensing them to GPLv2.0-or-later.
 2022-04-23 05:55:32 -04:00
bunnei 3f0b93925f core: hle: kernel: k_thread: Rework dummy thread waiting. 2022-04-11 21:15:38 -07:00
lat9nq 6bcbbb29e7 k_thread: Fix data race 
TSan reports a data race between writing at cpp:1162 and reading at
h:262. Make the thread_state atomic to prevent this.
 2022-04-03 21:47:58 -04:00