[PATCH 3/3] hal: Implement plain queued spinlock functions on top of DPC-level ones.
Zebediah Figura
z.figura12 at gmail.com
Mon Jan 28 19:21:14 CST 2019
Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
---
dlls/hal/hal.c | 31 +++++++++++++++++++++++++++++++
dlls/hal/hal.spec | 4 ++--
2 files changed, 33 insertions(+), 2 deletions(-)
diff --git a/dlls/hal/hal.c b/dlls/hal/hal.c
index 5b3ee44cff..6dd517d0df 100644
--- a/dlls/hal/hal.c
+++ b/dlls/hal/hal.c
@@ -49,6 +49,21 @@ WINE_DEFAULT_DEBUG_CHANNEL(ntoskrnl);
"pushl %eax\n\t" \
"jmp " __ASM_NAME("__regs_") #name __ASM_STDCALL(8))
+extern void * WINAPI call_fastcall_func1( void *func, const void *a );
+__ASM_GLOBAL_FUNC( call_fastcall_func1,
+ "popl %ecx\n\t"
+ "popl %eax\n\t"
+ "xchgl (%esp),%ecx\n\t"
+ "jmp *%eax" );
+
+extern void * WINAPI call_fastcall_func2( void *func, const void *a, const void *b );
+__ASM_GLOBAL_FUNC( call_fastcall_func2,
+ "popl %edx\n\t"
+ "popl %eax\n\t"
+ "popl %ecx\n\t"
+ "xchgl (%esp),%edx\n\t"
+ "jmp *%eax" );
+
DEFINE_FASTCALL1_ENTRYPOINT( ExAcquireFastMutex )
VOID WINAPI DECLSPEC_HIDDEN __regs_ExAcquireFastMutex(PFAST_MUTEX FastMutex)
{
@@ -94,6 +109,22 @@ void WINAPI KeReleaseSpinLock( KSPIN_LOCK *lock, KIRQL irql )
TRACE("lock %p, irql %u.\n", lock, irql);
KeReleaseSpinLockFromDpcLevel( lock );
}
+
+extern void WINAPI KeAcquireInStackQueuedSpinLockAtDpcLevel( KSPIN_LOCK *, KLOCK_QUEUE_HANDLE * );
+
+DEFINE_FASTCALL2_ENTRYPOINT( KeAcquireInStackQueuedSpinLock )
+void WINAPI DECLSPEC_HIDDEN __regs_KeAcquireInStackQueuedSpinLock( KSPIN_LOCK *lock, KLOCK_QUEUE_HANDLE *queue )
+{
+ call_fastcall_func2( KeAcquireInStackQueuedSpinLockAtDpcLevel, lock, queue );
+}
+
+extern void WINAPI KeReleaseInStackQueuedSpinLockFromDpcLevel( KLOCK_QUEUE_HANDLE * );
+
+DEFINE_FASTCALL1_ENTRYPOINT( KeReleaseInStackQueuedSpinLock )
+void WINAPI DECLSPEC_HIDDEN __regs_KeReleaseInStackQueuedSpinLock( KLOCK_QUEUE_HANDLE *queue )
+{
+ call_fastcall_func1( KeReleaseInStackQueuedSpinLockFromDpcLevel, queue );
+}
#endif /* __i386__ */
#if defined(__i386__) || defined(__arm__) || defined(__aarch64__)
diff --git a/dlls/hal/hal.spec b/dlls/hal/hal.spec
index b4ec5126e5..16822fcc9f 100644
--- a/dlls/hal/hal.spec
+++ b/dlls/hal/hal.spec
@@ -4,12 +4,12 @@
@ stub HalClearSoftwareInterrupt
@ stub HalRequestSoftwareInterrupt
@ stub HalSystemVectorDispatchEntry
-@ stdcall -norelay KeAcquireInStackQueuedSpinLock(ptr ptr) ntoskrnl.exe.KeAcquireInStackQueuedSpinLock
+@ stdcall -arch=i386 -norelay KeAcquireInStackQueuedSpinLock(ptr ptr)
@ stub KeAcquireInStackQueuedSpinLockRaiseToSynch
@ stub KeAcquireQueuedSpinLock
@ stub KeAcquireQueuedSpinLockRaiseToSynch
@ stub KeAcquireSpinLockRaiseToSynch
-@ stdcall -norelay KeReleaseInStackQueuedSpinLock(ptr) ntoskrnl.exe.KeReleaseInStackQueuedSpinLock
+@ stdcall -arch=i386 -norelay KeReleaseInStackQueuedSpinLock(ptr)
@ stub KeReleaseQueuedSpinLock
@ stub KeTryToAcquireQueuedSpinLock
@ stub KeTryToAcquireQueuedSpinLockRaiseToSynch
--
2.20.1
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