ntdll: Move TEB allocation to the common code.

dlls/ntdll/ntdll_misc.h

@@ -79,9 +79,8 @@ extern LPCSTR debugstr_ObjectAttributes(const OBJECT_ATTRIBUTES *oa) DECLSPEC_HI
 /* init routines */
 extern SIZE_T signal_stack_size DECLSPEC_HIDDEN;
 extern SIZE_T signal_stack_mask DECLSPEC_HIDDEN;
-extern SIZE_T signal_stack_align DECLSPEC_HIDDEN;
 extern void signal_init_threading(void) DECLSPEC_HIDDEN;
-extern NTSTATUS signal_alloc_thread( TEB **teb ) DECLSPEC_HIDDEN;
+extern NTSTATUS signal_alloc_thread( TEB *teb ) DECLSPEC_HIDDEN;
 extern void signal_free_thread( TEB *teb ) DECLSPEC_HIDDEN;
 extern void signal_init_thread( TEB *teb ) DECLSPEC_HIDDEN;
 extern void signal_init_process(void) DECLSPEC_HIDDEN;
@@ -201,6 +200,8 @@ extern NTSTATUS virtual_map_section( HANDLE handle, PVOID *addr_ptr, unsigned sh
                                      ULONG protect, pe_image_info_t *image_info ) DECLSPEC_HIDDEN;
 extern void virtual_get_system_info( SYSTEM_BASIC_INFORMATION *info ) DECLSPEC_HIDDEN;
 extern NTSTATUS virtual_create_builtin_view( void *base ) DECLSPEC_HIDDEN;
+extern NTSTATUS virtual_alloc_teb( TEB **teb ) DECLSPEC_HIDDEN;
+extern void virtual_free_teb( TEB *teb ) DECLSPEC_HIDDEN;
 extern NTSTATUS virtual_alloc_thread_stack( INITIAL_TEB *stack, SIZE_T reserve_size,
                                             SIZE_T commit_size, SIZE_T *pthread_size ) DECLSPEC_HIDDEN;
 extern void virtual_clear_thread_stack( void *stack_end ) DECLSPEC_HIDDEN;

dlls/ntdll/signal_arm.c

@@ -964,19 +964,9 @@ void signal_init_threading(void)
 /**********************************************************************
  *             signal_alloc_thread
  */
-NTSTATUS signal_alloc_thread( TEB **teb )
+NTSTATUS signal_alloc_thread( TEB *teb )
 {
-    SIZE_T size = signal_stack_mask + 1;
-    NTSTATUS status;
-
-    *teb = NULL;
-    if (!(status = virtual_alloc_aligned( (void **)teb, 0, &size, MEM_COMMIT | MEM_TOP_DOWN,
-                                          PAGE_READWRITE, signal_stack_align )))
-    {
-        (*teb)->Tib.Self = &(*teb)->Tib;
-        (*teb)->Tib.ExceptionList = (void *)~0UL;
-    }
-    return status;
+    return STATUS_SUCCESS;
 }
 
 
@@ -985,9 +975,6 @@ NTSTATUS signal_alloc_thread( TEB **teb )
  */
 void signal_free_thread( TEB *teb )
 {
-    SIZE_T size = 0;
-
-    NtFreeVirtualMemory( NtCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
 }
 
 

dlls/ntdll/signal_arm64.c

@@ -1261,20 +1261,9 @@ void signal_init_threading(void)
 /**********************************************************************
  *             signal_alloc_thread
  */
-NTSTATUS signal_alloc_thread( TEB **teb )
+NTSTATUS signal_alloc_thread( TEB *teb )
 {
-    SIZE_T size;
-    NTSTATUS status;
-
-    size = teb_size + max( MINSIGSTKSZ, 8192 );
-    *teb = NULL;
-    if (!(status = virtual_alloc_aligned( (void **)teb, 0, &size, MEM_COMMIT | MEM_TOP_DOWN,
-                                          PAGE_READWRITE, 13 )))
-    {
-        (*teb)->Tib.Self = &(*teb)->Tib;
-        (*teb)->Tib.ExceptionList = (void *)~0UL;
-    }
-    return status;
+    return STATUS_SUCCESS;
 }
 
 
@@ -1283,9 +1272,6 @@ NTSTATUS signal_alloc_thread( TEB **teb )
  */
 void signal_free_thread( TEB *teb )
 {
-    SIZE_T size = 0;
-
-    NtFreeVirtualMemory( NtCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
 }
 
 

dlls/ntdll/signal_i386.c

@@ -2436,46 +2436,6 @@ static void ldt_set_entry( WORD sel, LDT_ENTRY entry )
                                     LDT_FLAGS_ALLOCATED);
 }
 
-WORD ldt_alloc_fs( TEB *teb, int first_thread )
-{
-    LDT_ENTRY entry;
-    int idx;
-
-    if (gdt_fs_sel) return gdt_fs_sel;
-
-    entry = ldt_make_entry( teb, teb_size - 1, LDT_FLAGS_DATA | LDT_FLAGS_32BIT );
-
-    if (first_thread)  /* no locking for first thread */
-    {
-        /* leave some space if libc is using the LDT for %gs */
-        if (!is_gdt_sel( get_gs() )) first_ldt_entry = 512;
-        idx = first_ldt_entry;
-        ldt_set_entry( (idx << 3) | 7, entry );
-    }
-    else
-    {
-        ldt_lock();
-        for (idx = first_ldt_entry; idx < LDT_SIZE; idx++)
-        {
-            if (__wine_ldt_copy.flags[idx]) continue;
-            ldt_set_entry( (idx << 3) | 7, entry );
-            break;
-        }
-        ldt_unlock();
-        if (idx == LDT_SIZE) return 0;
-    }
-    return (idx << 3) | 7;
-}
-
-static void ldt_free_fs( WORD sel )
-{
-    if (sel == gdt_fs_sel) return;
-
-    ldt_lock();
-    __wine_ldt_copy.flags[sel >> 3] = 0;
-    ldt_unlock();
-}
-
 static void ldt_set_fs( WORD sel, TEB *teb )
 {
     if (sel == gdt_fs_sel)
@@ -2588,30 +2548,41 @@ void signal_init_threading(void)
 /**********************************************************************
  *		signal_alloc_thread
  */
-NTSTATUS signal_alloc_thread( TEB **teb )
+NTSTATUS signal_alloc_thread( TEB *teb )
 {
-    struct x86_thread_data *thread_data;
-    SIZE_T size = signal_stack_mask + 1;
-    void *addr = NULL;
-    NTSTATUS status;
-    static int first_thread = 1;
+    struct x86_thread_data *thread_data = (struct x86_thread_data *)teb->SystemReserved2;
 
-    if (!(status = virtual_alloc_aligned( &addr, 0, &size, MEM_COMMIT | MEM_TOP_DOWN,
-                                          PAGE_READWRITE, signal_stack_align )))
+    if (!gdt_fs_sel)
     {
-        *teb = addr;
-        (*teb)->Tib.Self = &(*teb)->Tib;
-        (*teb)->Tib.ExceptionList = (void *)~0UL;
-        thread_data = (struct x86_thread_data *)(*teb)->SystemReserved2;
-        if (!(thread_data->fs = ldt_alloc_fs( *teb, first_thread )))
+        static int first_thread = 1;
+        int idx;
+        LDT_ENTRY entry = ldt_make_entry( teb, teb_size - 1, LDT_FLAGS_DATA | LDT_FLAGS_32BIT );
+
+        if (first_thread)  /* no locking for first thread */
         {
-            size = 0;
-            NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
-            status = STATUS_TOO_MANY_THREADS;
+            /* leave some space if libc is using the LDT for %gs */
+            if (!is_gdt_sel( get_gs() )) first_ldt_entry = 512;
+            idx = first_ldt_entry;
+            ldt_set_entry( (idx << 3) | 7, entry );
+            first_thread = 0;
         }
-        first_thread = 0;
+        else
+        {
+            ldt_lock();
+            for (idx = first_ldt_entry; idx < LDT_SIZE; idx++)
+            {
+                if (__wine_ldt_copy.flags[idx]) continue;
+                ldt_set_entry( (idx << 3) | 7, entry );
+                break;
+            }
+            ldt_unlock();
+            if (idx == LDT_SIZE) return STATUS_TOO_MANY_THREADS;
+        }
+        thread_data->fs = (idx << 3) | 7;
     }
-    return status;
+    else thread_data->fs = gdt_fs_sel;
+
+    return STATUS_SUCCESS;
 }
 
 
@@ -2620,11 +2591,13 @@ NTSTATUS signal_alloc_thread( TEB **teb )
  */
 void signal_free_thread( TEB *teb )
 {
-    SIZE_T size = 0;
     struct x86_thread_data *thread_data = (struct x86_thread_data *)teb->SystemReserved2;
 
-    ldt_free_fs( thread_data->fs );
-    NtFreeVirtualMemory( NtCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
+    if (gdt_fs_sel) return;
+
+    ldt_lock();
+    __wine_ldt_copy.flags[thread_data->fs >> 3] = 0;
+    ldt_unlock();
 }
 
 

dlls/ntdll/signal_powerpc.c

@@ -1025,19 +1025,9 @@ void signal_init_threading(void)
 /**********************************************************************
  *		signal_alloc_thread
  */
-NTSTATUS signal_alloc_thread( TEB **teb )
+NTSTATUS signal_alloc_thread( TEB *teb )
 {
-    SIZE_T size = signal_stack_mask + 1;
-    NTSTATUS status;
-
-    *teb = NULL;
-    if (!(status = virtual_alloc_aligned( (void **)teb, 0, &size, MEM_COMMIT | MEM_TOP_DOWN,
-                                          PAGE_READWRITE, signal_stack_align )))
-    {
-        (*teb)->Tib.Self = &(*teb)->Tib;
-        (*teb)->Tib.ExceptionList = (void *)~0UL;
-    }
-    return status;
+    return STATUS_SUCCESS;
 }
 
 
@@ -1046,9 +1036,6 @@ NTSTATUS signal_alloc_thread( TEB **teb )
  */
 void signal_free_thread( TEB *teb )
 {
-    SIZE_T size = 0;
-
-    NtFreeVirtualMemory( NtCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
 }
 
 

dlls/ntdll/signal_x86_64.c

@@ -3117,19 +3117,9 @@ void signal_init_threading(void)
 /**********************************************************************
  *		signal_alloc_thread
  */
-NTSTATUS signal_alloc_thread( TEB **teb )
+NTSTATUS signal_alloc_thread( TEB *teb )
 {
-    SIZE_T size = signal_stack_mask + 1;
-    NTSTATUS status;
-
-    *teb = NULL;
-    if (!(status = virtual_alloc_aligned( (void **)teb, 0, &size, MEM_COMMIT | MEM_TOP_DOWN,
-                                          PAGE_READWRITE, signal_stack_align )))
-    {
-        (*teb)->Tib.Self = &(*teb)->Tib;
-        (*teb)->Tib.ExceptionList = (void *)~0UL;
-    }
-    return status;
+    return STATUS_SUCCESS;
 }
 
 
@@ -3138,9 +3128,6 @@ NTSTATUS signal_alloc_thread( TEB **teb )
  */
 void signal_free_thread( TEB *teb )
 {
-    SIZE_T size = 0;
-
-    NtFreeVirtualMemory( NtCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
 }
 
 #ifdef __APPLE__

dlls/ntdll/thread.c

@@ -285,11 +285,9 @@ TEB *thread_init(void)
     /* allocate and initialize the initial TEB */
 
     signal_init_threading();
-    signal_alloc_thread( &teb );
+    virtual_alloc_teb( &teb );
     teb->Peb = peb;
     teb->Tib.StackBase = (void *)~0UL;
-    teb->StaticUnicodeString.Buffer = teb->StaticUnicodeBuffer;
-    teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
 
     thread_data = (struct ntdll_thread_data *)&teb->GdiTebBatch;
     thread_data->request_fd = -1;
@@ -321,28 +319,6 @@ TEB *thread_init(void)
 
 
 /***********************************************************************
- *           free_thread_data
- */
-static void free_thread_data( TEB *teb )
-{
-    struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)&teb->GdiTebBatch;
-    SIZE_T size;
-
-    if (teb->DeallocationStack)
-    {
-        size = 0;
-        NtFreeVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
-    }
-    if (thread_data->start_stack)
-    {
-        size = 0;
-        NtFreeVirtualMemory( GetCurrentProcess(), &thread_data->start_stack, &size, MEM_RELEASE );
-    }
-    signal_free_thread( teb );
-}
-
-
-/***********************************************************************
  *           abort_thread
  */
 void abort_thread( int status )
@@ -404,7 +380,7 @@ void WINAPI RtlExitUserThread( ULONG status )
         if (thread_data->pthread_id)
         {
             pthread_join( thread_data->pthread_id, NULL );
-            free_thread_data( teb );
+            virtual_free_teb( teb );
         }
     }
 
@@ -539,13 +515,11 @@ NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, SECURITY_DESCRIPTOR *descr,
 
     pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
 
-    if ((status = signal_alloc_thread( &teb ))) goto error;
+    if ((status = virtual_alloc_teb( &teb ))) goto error;
 
     teb->Peb = NtCurrentTeb()->Peb;
     teb->ClientId.UniqueProcess = ULongToHandle(GetCurrentProcessId());
     teb->ClientId.UniqueThread  = ULongToHandle(tid);
-    teb->StaticUnicodeString.Buffer        = teb->StaticUnicodeBuffer;
-    teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
 
     /* create default activation context frame for new thread */
     RtlGetActiveActivationContext(&actctx);
@@ -602,7 +576,7 @@ NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, SECURITY_DESCRIPTOR *descr,
     return STATUS_SUCCESS;
 
 error:
-    if (teb) free_thread_data( teb );
+    if (teb) virtual_free_teb( teb );
     if (handle) NtClose( handle );
     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
     close( request_pipe[1] );

dlls/ntdll/virtual.c

@@ -162,7 +162,7 @@ static const BOOL is_win64 = (sizeof(void *) > sizeof(int));
 
 SIZE_T signal_stack_size = 0;
 SIZE_T signal_stack_mask = 0;
-SIZE_T signal_stack_align = 0;
+static SIZE_T signal_stack_align;
 
 #define ROUND_ADDR(addr,mask) \
    ((void *)((UINT_PTR)(addr) & ~(UINT_PTR)(mask)))
@@ -2094,6 +2094,58 @@ NTSTATUS virtual_create_builtin_view( void *module )
 
 
 /***********************************************************************
+ *           virtual_alloc_teb
+ */
+NTSTATUS virtual_alloc_teb( TEB **ret_teb )
+{
+    SIZE_T size = signal_stack_mask + 1;
+    void *addr = NULL;
+    TEB *teb;
+    NTSTATUS status;
+
+    if ((status = virtual_alloc_aligned( &addr, 0, &size, MEM_COMMIT | MEM_TOP_DOWN,
+                                         PAGE_READWRITE, signal_stack_align )))
+        return status;
+
+    *ret_teb = teb = addr;
+    teb->Tib.Self = &teb->Tib;
+    teb->Tib.ExceptionList = (void *)~0UL;
+    teb->StaticUnicodeString.Buffer = teb->StaticUnicodeBuffer;
+    teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
+    if ((status = signal_alloc_thread( teb )))
+    {
+        size = 0;
+        NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
+    }
+    return status;
+}
+
+
+/***********************************************************************
+ *           virtual_free_teb
+ */
+void virtual_free_teb( TEB *teb )
+{
+    struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)&teb->GdiTebBatch;
+    SIZE_T size;
+
+    signal_free_thread( teb );
+    if (teb->DeallocationStack)
+    {
+        size = 0;
+        NtFreeVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
+    }
+    if (thread_data->start_stack)
+    {
+        size = 0;
+        NtFreeVirtualMemory( GetCurrentProcess(), &thread_data->start_stack, &size, MEM_RELEASE );
+    }
+    size = 0;
+    NtFreeVirtualMemory( NtCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
+}
+
+
+/***********************************************************************
  *           virtual_alloc_thread_stack
  */
 NTSTATUS virtual_alloc_thread_stack( INITIAL_TEB *stack, SIZE_T reserve_size, SIZE_T commit_size, SIZE_T *pthread_size )