forked from Mirrors/wine-wine
Better implementation of inline functions SetLastError and
GetCurrentThreadId. Added asm inlines for Interlocked* functions.oldstable
Alexandre Julliard
parent
7d0dd5f327
commit
ca3c9ba4ec
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@ -132,7 +132,4 @@ extern int SYSDEPS_SpawnThread( TEB *teb );
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extern void SYSDEPS_SetCurThread( TEB *teb );
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extern void SYSDEPS_ExitThread(void);
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#define SetLastError(err) ((void)(NtCurrentTeb()->last_error = (err)))
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#define GetCurrentThreadId() ((DWORD)NtCurrentTeb()->tid)
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#endif /* __WINE_THREAD_H */
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@ -1356,11 +1356,6 @@ BOOL WINAPI InitializeSid(PSID,PSID_IDENTIFIER_AUTHORITY,BYTE);
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BOOL WINAPI IsValidSecurityDescriptor(PSECURITY_DESCRIPTOR);
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BOOL WINAPI IsValidSid(PSID);
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BOOL WINAPI ImpersonateSelf(SECURITY_IMPERSONATION_LEVEL);
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PVOID WINAPI InterlockedCompareExchange(PVOID*,PVOID,PVOID);
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LONG WINAPI InterlockedDecrement(LPLONG);
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LONG WINAPI InterlockedExchange(LPLONG,LONG);
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LONG WINAPI InterlockedExchangeAdd(PLONG,LONG);
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LONG WINAPI InterlockedIncrement(LPLONG);
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BOOL WINAPI IsDBCSLeadByteEx(UINT,BYTE);
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BOOL WINAPI IsProcessorFeaturePresent(DWORD);
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BOOL WINAPI IsValidLocale(DWORD,DWORD);
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@ -1509,7 +1504,6 @@ BOOL WINAPI WriteConsoleA(HANDLE,LPCVOID,DWORD,LPDWORD,LPVOID);
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BOOL WINAPI WriteConsoleW(HANDLE,LPCVOID,DWORD,LPDWORD,LPVOID);
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#define WriteConsole WINELIB_NAME_AW(WriteConsole)
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BOOL WINAPI WriteFile(HANDLE,LPCVOID,DWORD,LPDWORD,LPOVERLAPPED);
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DWORD WINAPI GetLastError(void);
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LANGID WINAPI GetSystemDefaultLangID(void);
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LCID WINAPI GetSystemDefaultLCID(void);
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LANGID WINAPI GetUserDefaultLangID(void);
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@ -1763,13 +1757,74 @@ INT WINAPI lstrcmpiW(LPCWSTR,LPCWSTR);
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#define ZeroMemory RtlZeroMemory
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#define CopyMemory RtlCopyMemory
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/* the following may be macros when compiling Wine */
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#ifndef SetLastError
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VOID WINAPI SetLastError(DWORD);
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#endif
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#ifndef GetCurrentThreadId
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DWORD WINAPI GetCurrentThreadId(void);
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#endif
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/* a few optimizations for i386/gcc */
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#if defined(__i386__) && defined(__GNUC__)
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static inline PVOID WINAPI InterlockedCompareExchange( PVOID *dest, PVOID xchg, PVOID compare )
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{
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PVOID ret;
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__asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
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: "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
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return ret;
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}
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static inline LONG WINAPI InterlockedExchange( PLONG dest, LONG val )
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{
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LONG ret;
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__asm__ __volatile__( "lock; xchgl %0,(%1)"
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: "=r" (ret) :"r" (dest), "0" (val) : "memory" );
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return ret;
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}
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static inline LONG WINAPI InterlockedExchangeAdd( PLONG dest, LONG incr )
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{
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LONG ret;
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__asm__ __volatile__( "lock; xaddl %0,(%1)"
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: "=r" (ret) : "r" (dest), "0" (incr) : "memory" );
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return ret;
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}
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static inline LONG WINAPI InterlockedIncrement( PLONG dest )
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{
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return InterlockedExchangeAdd( dest, 1 ) + 1;
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}
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static inline LONG WINAPI InterlockedDecrement( PLONG dest )
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{
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return InterlockedExchangeAdd( dest, -1 ) - 1;
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}
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static inline DWORD WINAPI GetLastError(void)
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{
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DWORD ret;
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__asm__ __volatile__( ".byte 0x64\n\tmovl 0x60,%0" : "=r" (ret) );
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return ret;
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}
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static inline DWORD WINAPI GetCurrentThreadId(void)
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{
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DWORD ret;
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__asm__ __volatile__( ".byte 0x64\n\tmovl 0x24,%0" : "=r" (ret) );
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return ret;
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}
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static inline void WINAPI SetLastError( DWORD err )
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{
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__asm__ __volatile__( ".byte 0x64\n\tmovl %0,0x60" : : "r" (err) : "memory" );
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}
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#else /* __i386__ && __GNUC__ */
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DWORD WINAPI GetCurrentThreadId(void);
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DWORD WINAPI GetLastError(void);
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PVOID WINAPI InterlockedCompareExchange(PVOID*,PVOID,PVOID);
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LONG WINAPI InterlockedDecrement(PLONG);
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LONG WINAPI InterlockedExchange(PLONG,LONG);
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LONG WINAPI InterlockedExchangeAdd(PLONG,LONG);
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LONG WINAPI InterlockedIncrement(PLONG);
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VOID WINAPI SetLastError(DWORD);
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#endif /* __i386__ && __GNUC__ */
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#ifdef __cplusplus
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}
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@ -196,3 +196,46 @@ void WINAPI UninitializeCriticalSection( CRITICAL_SECTION *crit )
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}
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}
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#ifdef __i386__
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/* PVOID WINAPI InterlockedCompareExchange( PVOID *dest, PVOID xchg, PVOID compare ); */
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__ASM_GLOBAL_FUNC(InterlockedCompareExchange,
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"movl 12(%esp),%eax\n\t"
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"movl 8(%esp),%ecx\n\t"
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"movl 4(%esp),%edx\n\t"
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"lock; cmpxchgl %ecx,(%edx)\n\t"
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"ret $12");
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/* LONG WINAPI InterlockedExchange( PLONG dest, LONG val ); */
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__ASM_GLOBAL_FUNC(InterlockedExchange,
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"movl 8(%esp),%eax\n\t"
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"movl 4(%esp),%edx\n\t"
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"lock; xchgl %eax,(%edx)\n\t"
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"ret $8");
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/* LONG WINAPI InterlockedExchangeAdd( PLONG dest, LONG incr ); */
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__ASM_GLOBAL_FUNC(InterlockedExchangeAdd,
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"movl 8(%esp),%eax\n\t"
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"movl 4(%esp),%edx\n\t"
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"lock; xaddl %eax,(%edx)\n\t"
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"ret $8");
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/* LONG WINAPI InterlockedIncrement( PLONG dest ); */
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__ASM_GLOBAL_FUNC(InterlockedIncrement,
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"movl 4(%esp),%edx\n\t"
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"movl $1,%eax\n\t"
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"lock; xaddl %eax,(%edx)\n\t"
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"incl %eax\n\t"
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"ret $4");
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/* LONG WINAPI InterlockedDecrement( PLONG dest ); */
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__ASM_GLOBAL_FUNC(InterlockedDecrement,
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"movl 4(%esp),%edx\n\t"
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"movl $-1,%eax\n\t"
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"lock; xaddl %eax,(%edx)\n\t"
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"decl %eax\n\t"
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"ret $4");
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#else /* __i386__ */
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#error You must implement the Interlocked* functions for your CPU
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#endif /* __i386__ */
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@ -356,18 +356,6 @@ HANDLE WINAPI GetCurrentThread(void)
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}
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/**********************************************************************
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* GetLastError [KERNEL.148] [KERNEL32.227] Returns last-error code.
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*
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* RETURNS
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* Calling thread's last error code value.
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*/
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DWORD WINAPI GetLastError(void)
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{
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return NtCurrentTeb()->last_error;
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}
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/**********************************************************************
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* SetLastErrorEx [USER32.485] Sets the last-error code.
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*
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@ -829,27 +817,45 @@ BOOL WINAPI SetThreadLocale(
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}
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#ifdef __i386__
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/* void WINAPI SetLastError( DWORD error ); */
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__ASM_GLOBAL_FUNC( SetLastError,
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"movl 4(%esp),%eax\n\t"
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".byte 0x64\n\t"
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"movl %eax,0x60\n\t"
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"ret $4" );
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/* DWORD WINAPI GetLastError(void); */
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__ASM_GLOBAL_FUNC( GetLastError, ".byte 0x64\n\tmovl 0x60,%eax\n\tret" );
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/* DWORD WINAPI GetCurrentThreadId(void) */
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__ASM_GLOBAL_FUNC( GetCurrentThreadId, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" );
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#else /* __i386__ */
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/**********************************************************************
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* SetLastError [KERNEL.147] [KERNEL32.497] Sets the last-error code.
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*
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* RETURNS
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* None.
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*/
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#undef SetLastError
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void WINAPI SetLastError( DWORD error ) /* [in] Per-thread error code */
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{
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NtCurrentTeb()->last_error = error;
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}
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/**********************************************************************
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* GetLastError [KERNEL.148] [KERNEL32.227] Returns last-error code.
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*/
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DWORD WINAPI GetLastError(void)
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{
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return NtCurrentTeb()->last_error;
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}
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/***********************************************************************
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* GetCurrentThreadId [KERNEL32.201] Returns thread identifier.
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*
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* RETURNS
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* Thread identifier of calling thread
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*/
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#undef GetCurrentThreadId
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DWORD WINAPI GetCurrentThreadId(void)
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{
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return (DWORD)NtCurrentTeb()->tid;
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}
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#endif /* __i386__ */
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@ -18,7 +18,6 @@ C_SRCS = \
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ordinals.c \
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process.c \
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struct32.c \
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thread.c \
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time.c
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all: $(MODULE).o
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202
win32/thread.c
202
win32/thread.c
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@ -1,202 +0,0 @@
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/*
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* Win32 kernel functions
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*
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* Copyright 1995 Martin von Loewis
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* Copyright 1997 Onno Hovers
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*/
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#include <string.h>
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#include <unistd.h>
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#include "winbase.h"
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#include "windef.h"
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#include "winerror.h"
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/*
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* FIXME:
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* The c functions do not protect from non-interlocked accesses
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* This is no problem as long as we do not have multiple Win32 threads
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* or processes.
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* The assembly macro's do protect from non-interlocked access,
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* but they will only work for i386 systems with GCC.
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*/
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/************************************************************************
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* InterlockedIncrement [KERNEL32] *
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* *
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* InterlockedIncrement adds 1 to a long variable and returns *
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* - a negative number if the result < 0 *
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* - zero if the result == 0 *
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* - a positive number if the result > 0 *
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* *
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* The returned number need not be equal to the result!!!! *
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************************************************************************/
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LONG WINAPI InterlockedIncrement(LPLONG lpAddend)
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{
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#if defined(__i386__)&&defined(__GNUC__)
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long ret;
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__asm__
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(
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"\tlock\n" /* for SMP systems */
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"\tincl (%1)\n"
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"\tje 2f\n"
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"\tjl 1f\n"
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"\tincl %0\n"
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"\tjmp 2f\n"
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"1:\tdec %0\n"
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"2:\n"
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:"=r" (ret):"r" (lpAddend), "0" (0): "memory"
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);
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return ret;
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#else
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LONG ret;
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/* StopAllThreadsAndProcesses() */
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(*lpAddend)++;
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ret=*lpAddend;
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/* ResumeAllThreadsAndProcesses() */
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return ret;
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#endif
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}
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/************************************************************************
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* InterlockedDecrement [KERNEL32] *
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* *
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* InterlockedIncrement adds 1 to a long variable and returns *
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* - a negative number if the result < 0 *
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* - zero if the result == 0 *
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* - a positive number if the result > 0 *
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* *
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* The returned number need not be equal to the result!!!! *
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************************************************************************/
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LONG WINAPI InterlockedDecrement(LPLONG lpAddend)
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{
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#if defined(__i386__)&&defined(__GNUC__)
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LONG ret;
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__asm__
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(
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"\tlock\n" /* for SMP systems */
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"\tdecl (%1)\n"
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"\tje 2f\n"
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"\tjl 1f\n"
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"\tincl %0\n"
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"\tjmp 2f\n"
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"1:\tdec %0\n"
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"2:\n"
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:"=r" (ret):"r" (lpAddend), "0" (0): "memory"
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);
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return ret;
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#else
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LONG ret;
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/* StopAllThreadsAndProcesses() */
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(*lpAddend)--;
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ret=*lpAddend;
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/* ResumeAllThreadsAndProcesses() */
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return ret;
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#endif
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}
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/************************************************************************
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* InterlockedExchange [KERNEL32.???]
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*
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* Atomically exchanges a pair of values.
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*
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* RETURNS
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* Prior value of value pointed to by Target
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*/
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LONG WINAPI InterlockedExchange(
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LPLONG target, /* Address of 32-bit value to exchange */
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LONG value /* New value for the value pointed to by target */
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) {
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#if defined(__i386__)&&defined(__GNUC__)
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LONG ret;
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__asm__ ( /* lock for SMP systems */
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"lock\n\txchgl %0,(%1)"
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:"=r" (ret):"r" (target), "0" (value):"memory" );
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return ret;
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#else
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LONG ret;
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/* StopAllThreadsAndProcesses() */
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ret=*target;
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*target=value;
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/* ResumeAllThreadsAndProcesses() */
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return ret;
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#endif
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}
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/************************************************************************
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* InterlockedCompareExchange [KERNEL32.879]
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*
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* Atomically compares Destination and Comperand, and if found equal exchanges
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* the value of Destination with Exchange
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*
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* RETURNS
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* Prior value of value pointed to by Destination
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*/
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PVOID WINAPI InterlockedCompareExchange(
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PVOID *Destination, /* Address of 32-bit value to exchange */
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PVOID Exchange, /* change value, 32 bits */
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PVOID Comperand /* value to compare, 32 bits */
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) {
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#if defined(__i386__)&&defined(__GNUC__)
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PVOID ret;
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__asm__ ( /* lock for SMP systems */
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"lock\n\t"
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"cmpxchgl %2,(%1)"
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:"=a" (ret)
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:"r" (Destination),"r" (Exchange), "0" (Comperand)
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:"memory" );
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return ret;
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#else
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PVOID ret;
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/* StopAllThreadsAndProcesses() */
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ret=*Destination;
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if(*Destination==Comperand) *Destination=Exchange;
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/* ResumeAllThreadsAndProcesses() */
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return ret;
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#endif
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}
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/************************************************************************
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* InterlockedExchangeAdd [KERNEL32.880]
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*
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* Atomically adds Increment to Addend and returns the previous value of
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* Addend
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*
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* RETURNS
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* Prior value of value pointed to by cwAddendTarget
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*/
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LONG WINAPI InterlockedExchangeAdd(
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PLONG Addend, /* Address of 32-bit value to exchange */
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LONG Increment /* Value to add */
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) {
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#if defined(__i386__)&&defined(__GNUC__)
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LONG ret;
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__asm__ ( /* lock for SMP systems */
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"lock\n\t"
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"xaddl %0,(%1)"
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:"=r" (ret)
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:"r" (Addend), "0" (Increment)
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:"memory" );
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return ret;
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#else
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LONG ret;
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/* StopAllThreadsAndProcesses() */
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ret = *Addend;
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*Addend += Increment;
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/* ResumeAllThreadsAndProcesses() */
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return ret;
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#endif
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}
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