2 * Win32 virtual memory functions
4 * Copyright 1997, 2002 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/port.h"
26 #ifdef HAVE_SYS_ERRNO_H
27 #include <sys/errno.h>
37 #include <sys/types.h>
38 #ifdef HAVE_SYS_STAT_H
39 # include <sys/stat.h>
41 #ifdef HAVE_SYS_MMAN_H
42 # include <sys/mman.h>
44 #ifdef HAVE_VALGRIND_VALGRIND_H
45 # include <valgrind/valgrind.h>
48 #define NONAMELESSUNION
49 #define NONAMELESSSTRUCT
51 #define WIN32_NO_STATUS
54 #include "wine/library.h"
55 #include "wine/server.h"
56 #include "wine/exception.h"
57 #include "wine/list.h"
58 #include "wine/debug.h"
59 #include "ntdll_misc.h"
61 WINE_DEFAULT_DEBUG_CHANNEL(virtual);
62 WINE_DECLARE_DEBUG_CHANNEL(module
);
69 #define MAP_NORESERVE 0
73 typedef struct file_view
75 struct list entry
; /* Entry in global view list */
76 void *base
; /* Base address */
77 size_t size
; /* Size in bytes */
78 HANDLE mapping
; /* Handle to the file mapping */
79 unsigned int protect
; /* Protection for all pages at allocation time */
80 BYTE prot
[1]; /* Protection byte for each page */
84 /* Conversion from VPROT_* to Win32 flags */
85 static const BYTE VIRTUAL_Win32Flags
[16] =
87 PAGE_NOACCESS
, /* 0 */
88 PAGE_READONLY
, /* READ */
89 PAGE_READWRITE
, /* WRITE */
90 PAGE_READWRITE
, /* READ | WRITE */
91 PAGE_EXECUTE
, /* EXEC */
92 PAGE_EXECUTE_READ
, /* READ | EXEC */
93 PAGE_EXECUTE_READWRITE
, /* WRITE | EXEC */
94 PAGE_EXECUTE_READWRITE
, /* READ | WRITE | EXEC */
95 PAGE_WRITECOPY
, /* WRITECOPY */
96 PAGE_WRITECOPY
, /* READ | WRITECOPY */
97 PAGE_WRITECOPY
, /* WRITE | WRITECOPY */
98 PAGE_WRITECOPY
, /* READ | WRITE | WRITECOPY */
99 PAGE_EXECUTE_WRITECOPY
, /* EXEC | WRITECOPY */
100 PAGE_EXECUTE_WRITECOPY
, /* READ | EXEC | WRITECOPY */
101 PAGE_EXECUTE_WRITECOPY
, /* WRITE | EXEC | WRITECOPY */
102 PAGE_EXECUTE_WRITECOPY
/* READ | WRITE | EXEC | WRITECOPY */
105 static struct list views_list
= LIST_INIT(views_list
);
107 static RTL_CRITICAL_SECTION csVirtual
;
108 static RTL_CRITICAL_SECTION_DEBUG critsect_debug
=
111 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
112 0, 0, { (DWORD_PTR
)(__FILE__
": csVirtual") }
114 static RTL_CRITICAL_SECTION csVirtual
= { &critsect_debug
, -1, 0, 0, 0, 0 };
117 /* These are always the same on an i386, and it will be faster this way */
118 # define page_mask 0xfff
119 # define page_shift 12
120 # define page_size 0x1000
121 /* Note: these are Windows limits, you cannot change them. */
122 static void *address_space_limit
= (void *)0xc0000000; /* top of the total available address space */
123 static void *user_space_limit
= (void *)0x7fff0000; /* top of the user address space */
124 static void *working_set_limit
= (void *)0x7fff0000; /* top of the current working set */
125 #elif defined(__x86_64__)
126 # define page_mask 0xfff
127 # define page_shift 12
128 # define page_size 0x1000
129 static void *address_space_limit
= (void *)0x7fffffff0000;
130 static void *user_space_limit
= (void *)0x7fffffff0000;
131 static void *working_set_limit
= (void *)0x7fffffff0000;
133 static UINT page_shift
;
134 static UINT_PTR page_size
;
135 static UINT_PTR page_mask
;
136 static void *address_space_limit
;
137 static void *user_space_limit
;
138 static void *working_set_limit
;
139 #endif /* __i386__ */
141 #define ROUND_ADDR(addr,mask) \
142 ((void *)((UINT_PTR)(addr) & ~(UINT_PTR)(mask)))
144 #define ROUND_SIZE(addr,size) \
145 (((SIZE_T)(size) + ((UINT_PTR)(addr) & page_mask) + page_mask) & ~page_mask)
147 #define VIRTUAL_DEBUG_DUMP_VIEW(view) \
148 do { if (TRACE_ON(virtual)) VIRTUAL_DumpView(view); } while (0)
150 #define VIRTUAL_HEAP_SIZE (4*1024*1024)
152 static HANDLE virtual_heap
;
153 static void *preload_reserve_start
;
154 static void *preload_reserve_end
;
155 static int use_locks
;
156 static int force_exec_prot
; /* whether to force PROT_EXEC on all PROT_READ mmaps */
159 /***********************************************************************
162 static const char *VIRTUAL_GetProtStr( BYTE prot
)
164 static char buffer
[6];
165 buffer
[0] = (prot
& VPROT_COMMITTED
) ? 'c' : '-';
166 buffer
[1] = (prot
& VPROT_GUARD
) ? 'g' : ((prot
& VPROT_WRITEWATCH
) ? 'H' : '-');
167 buffer
[2] = (prot
& VPROT_READ
) ? 'r' : '-';
168 buffer
[3] = (prot
& VPROT_WRITECOPY
) ? 'W' : ((prot
& VPROT_WRITE
) ? 'w' : '-');
169 buffer
[4] = (prot
& VPROT_EXEC
) ? 'x' : '-';
175 /***********************************************************************
176 * VIRTUAL_GetUnixProt
178 * Convert page protections to protection for mmap/mprotect.
180 static int VIRTUAL_GetUnixProt( BYTE vprot
)
183 if ((vprot
& VPROT_COMMITTED
) && !(vprot
& VPROT_GUARD
))
185 if (vprot
& VPROT_READ
) prot
|= PROT_READ
;
186 if (vprot
& VPROT_WRITE
) prot
|= PROT_WRITE
;
187 if (vprot
& VPROT_WRITECOPY
) prot
|= PROT_WRITE
;
188 if (vprot
& VPROT_EXEC
) prot
|= PROT_EXEC
;
189 if (vprot
& VPROT_WRITEWATCH
) prot
&= ~PROT_WRITE
;
191 if (!prot
) prot
= PROT_NONE
;
196 /***********************************************************************
199 static void VIRTUAL_DumpView( FILE_VIEW
*view
)
202 char *addr
= view
->base
;
203 BYTE prot
= view
->prot
[0];
205 TRACE( "View: %p - %p", addr
, addr
+ view
->size
- 1 );
206 if (view
->protect
& VPROT_SYSTEM
)
207 TRACE( " (system)\n" );
208 else if (view
->protect
& VPROT_VALLOC
)
209 TRACE( " (valloc)\n" );
210 else if (view
->mapping
)
211 TRACE( " %p\n", view
->mapping
);
213 TRACE( " (anonymous)\n");
215 for (count
= i
= 1; i
< view
->size
>> page_shift
; i
++, count
++)
217 if (view
->prot
[i
] == prot
) continue;
218 TRACE( " %p - %p %s\n",
219 addr
, addr
+ (count
<< page_shift
) - 1, VIRTUAL_GetProtStr(prot
) );
220 addr
+= (count
<< page_shift
);
221 prot
= view
->prot
[i
];
225 TRACE( " %p - %p %s\n",
226 addr
, addr
+ (count
<< page_shift
) - 1, VIRTUAL_GetProtStr(prot
) );
230 /***********************************************************************
234 static void VIRTUAL_Dump(void)
237 struct file_view
*view
;
239 TRACE( "Dump of all virtual memory views:\n" );
240 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
241 LIST_FOR_EACH_ENTRY( view
, &views_list
, FILE_VIEW
, entry
)
243 VIRTUAL_DumpView( view
);
245 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
250 /***********************************************************************
253 * Find the view containing a given address. The csVirtual section must be held by caller.
262 static struct file_view
*VIRTUAL_FindView( const void *addr
, size_t size
)
264 struct file_view
*view
;
266 LIST_FOR_EACH_ENTRY( view
, &views_list
, struct file_view
, entry
)
268 if (view
->base
> addr
) break; /* no matching view */
269 if ((const char *)view
->base
+ view
->size
<= (const char *)addr
) continue;
270 if ((const char *)view
->base
+ view
->size
< (const char *)addr
+ size
) break; /* size too large */
271 if ((const char *)addr
+ size
< (const char *)addr
) break; /* overflow */
278 /***********************************************************************
281 static inline UINT_PTR
get_mask( ULONG zero_bits
)
283 if (!zero_bits
) return 0xffff; /* allocations are aligned to 64K by default */
284 if (zero_bits
< page_shift
) zero_bits
= page_shift
;
285 return (1 << zero_bits
) - 1;
289 /***********************************************************************
292 * Find the first view overlapping at least part of the specified range.
293 * The csVirtual section must be held by caller.
295 static struct file_view
*find_view_range( const void *addr
, size_t size
)
297 struct file_view
*view
;
299 LIST_FOR_EACH_ENTRY( view
, &views_list
, struct file_view
, entry
)
301 if ((const char *)view
->base
>= (const char *)addr
+ size
) break;
302 if ((const char *)view
->base
+ view
->size
> (const char *)addr
) return view
;
308 /***********************************************************************
311 * Find a free area between views inside the specified range.
312 * The csVirtual section must be held by caller.
314 static void *find_free_area( void *base
, void *end
, size_t size
, size_t mask
, int top_down
)
321 start
= ROUND_ADDR( (char *)end
- size
, mask
);
322 if (start
>= end
|| start
< base
) return NULL
;
324 for (ptr
= views_list
.prev
; ptr
!= &views_list
; ptr
= ptr
->prev
)
326 struct file_view
*view
= LIST_ENTRY( ptr
, struct file_view
, entry
);
328 if ((char *)view
->base
+ view
->size
<= (char *)start
) break;
329 if ((char *)view
->base
>= (char *)start
+ size
) continue;
330 start
= ROUND_ADDR( (char *)view
->base
- size
, mask
);
331 /* stop if remaining space is not large enough */
332 if (!start
|| start
>= end
|| start
< base
) return NULL
;
337 start
= ROUND_ADDR( (char *)base
+ mask
, mask
);
338 if (start
>= end
|| (char *)end
- (char *)start
< size
) return NULL
;
340 for (ptr
= views_list
.next
; ptr
!= &views_list
; ptr
= ptr
->next
)
342 struct file_view
*view
= LIST_ENTRY( ptr
, struct file_view
, entry
);
344 if ((char *)view
->base
>= (char *)start
+ size
) break;
345 if ((char *)view
->base
+ view
->size
<= (char *)start
) continue;
346 start
= ROUND_ADDR( (char *)view
->base
+ view
->size
+ mask
, mask
);
347 /* stop if remaining space is not large enough */
348 if (!start
|| start
>= end
|| (char *)end
- (char *)start
< size
) return NULL
;
355 /***********************************************************************
358 * Add a reserved area to the list maintained by libwine.
359 * The csVirtual section must be held by caller.
361 static void add_reserved_area( void *addr
, size_t size
)
363 TRACE( "adding %p-%p\n", addr
, (char *)addr
+ size
);
365 if (addr
< user_space_limit
)
367 /* unmap the part of the area that is below the limit */
368 assert( (char *)addr
+ size
> (char *)user_space_limit
);
369 munmap( addr
, (char *)user_space_limit
- (char *)addr
);
370 size
-= (char *)user_space_limit
- (char *)addr
;
371 addr
= user_space_limit
;
373 /* blow away existing mappings */
374 wine_anon_mmap( addr
, size
, PROT_NONE
, MAP_NORESERVE
| MAP_FIXED
);
375 wine_mmap_add_reserved_area( addr
, size
);
379 /***********************************************************************
380 * remove_reserved_area
382 * Remove a reserved area from the list maintained by libwine.
383 * The csVirtual section must be held by caller.
385 static void remove_reserved_area( void *addr
, size_t size
)
387 struct file_view
*view
;
389 TRACE( "removing %p-%p\n", addr
, (char *)addr
+ size
);
390 wine_mmap_remove_reserved_area( addr
, size
, 0 );
392 /* unmap areas not covered by an existing view */
393 LIST_FOR_EACH_ENTRY( view
, &views_list
, struct file_view
, entry
)
395 if ((char *)view
->base
>= (char *)addr
+ size
)
397 munmap( addr
, size
);
400 if ((char *)view
->base
+ view
->size
<= (char *)addr
) continue;
401 if (view
->base
> addr
) munmap( addr
, (char *)view
->base
- (char *)addr
);
402 if ((char *)view
->base
+ view
->size
> (char *)addr
+ size
) break;
403 size
= (char *)addr
+ size
- ((char *)view
->base
+ view
->size
);
404 addr
= (char *)view
->base
+ view
->size
;
409 /***********************************************************************
412 * Check if an address range goes beyond a given limit.
414 static inline int is_beyond_limit( const void *addr
, size_t size
, const void *limit
)
416 return (addr
>= limit
|| (const char *)addr
+ size
> (const char *)limit
);
420 /***********************************************************************
423 * Unmap an area, or simply replace it by an empty mapping if it is
424 * in a reserved area. The csVirtual section must be held by caller.
426 static inline void unmap_area( void *addr
, size_t size
)
428 if (wine_mmap_is_in_reserved_area( addr
, size
))
429 wine_anon_mmap( addr
, size
, PROT_NONE
, MAP_NORESERVE
| MAP_FIXED
);
430 else if (is_beyond_limit( addr
, size
, user_space_limit
))
431 add_reserved_area( addr
, size
);
433 munmap( addr
, size
);
437 /***********************************************************************
440 * Deletes a view. The csVirtual section must be held by caller.
442 static void delete_view( struct file_view
*view
) /* [in] View */
444 if (!(view
->protect
& VPROT_SYSTEM
)) unmap_area( view
->base
, view
->size
);
445 list_remove( &view
->entry
);
446 if (view
->mapping
) NtClose( view
->mapping
);
447 RtlFreeHeap( virtual_heap
, 0, view
);
451 /***********************************************************************
454 * Create a view. The csVirtual section must be held by caller.
456 static NTSTATUS
create_view( struct file_view
**view_ret
, void *base
, size_t size
, unsigned int vprot
)
458 struct file_view
*view
;
460 int unix_prot
= VIRTUAL_GetUnixProt( vprot
);
462 assert( !((UINT_PTR
)base
& page_mask
) );
463 assert( !(size
& page_mask
) );
465 /* Create the view structure */
467 if (!(view
= RtlAllocateHeap( virtual_heap
, 0, sizeof(*view
) + (size
>> page_shift
) - 1 )))
469 FIXME( "out of memory in virtual heap for %p-%p\n", base
, (char *)base
+ size
);
470 return STATUS_NO_MEMORY
;
476 view
->protect
= vprot
;
477 memset( view
->prot
, vprot
, size
>> page_shift
);
479 /* Insert it in the linked list */
481 LIST_FOR_EACH( ptr
, &views_list
)
483 struct file_view
*next
= LIST_ENTRY( ptr
, struct file_view
, entry
);
484 if (next
->base
> base
) break;
486 list_add_before( ptr
, &view
->entry
);
488 /* Check for overlapping views. This can happen if the previous view
489 * was a system view that got unmapped behind our back. In that case
490 * we recover by simply deleting it. */
492 if ((ptr
= list_prev( &views_list
, &view
->entry
)) != NULL
)
494 struct file_view
*prev
= LIST_ENTRY( ptr
, struct file_view
, entry
);
495 if ((char *)prev
->base
+ prev
->size
> (char *)base
)
497 TRACE( "overlapping prev view %p-%p for %p-%p\n",
498 prev
->base
, (char *)prev
->base
+ prev
->size
,
499 base
, (char *)base
+ view
->size
);
500 assert( prev
->protect
& VPROT_SYSTEM
);
504 if ((ptr
= list_next( &views_list
, &view
->entry
)) != NULL
)
506 struct file_view
*next
= LIST_ENTRY( ptr
, struct file_view
, entry
);
507 if ((char *)base
+ view
->size
> (char *)next
->base
)
509 TRACE( "overlapping next view %p-%p for %p-%p\n",
510 next
->base
, (char *)next
->base
+ next
->size
,
511 base
, (char *)base
+ view
->size
);
512 assert( next
->protect
& VPROT_SYSTEM
);
518 VIRTUAL_DEBUG_DUMP_VIEW( view
);
520 if (force_exec_prot
&& !(vprot
& VPROT_NOEXEC
) && (unix_prot
& PROT_READ
) && !(unix_prot
& PROT_EXEC
))
522 TRACE( "forcing exec permission on %p-%p\n", base
, (char *)base
+ size
- 1 );
523 mprotect( base
, size
, unix_prot
| PROT_EXEC
);
525 return STATUS_SUCCESS
;
529 /***********************************************************************
530 * VIRTUAL_GetWin32Prot
532 * Convert page protections to Win32 flags.
534 static DWORD
VIRTUAL_GetWin32Prot( BYTE vprot
)
536 DWORD ret
= VIRTUAL_Win32Flags
[vprot
& 0x0f];
537 if (vprot
& VPROT_NOCACHE
) ret
|= PAGE_NOCACHE
;
538 if (vprot
& VPROT_GUARD
) ret
|= PAGE_GUARD
;
543 /***********************************************************************
546 * Build page protections from Win32 flags.
549 * protect [I] Win32 protection flags
552 * Value of page protection flags
554 static NTSTATUS
get_vprot_flags( DWORD protect
, unsigned int *vprot
)
556 switch(protect
& 0xff)
562 *vprot
= VPROT_READ
| VPROT_WRITE
;
565 *vprot
= VPROT_READ
| VPROT_WRITECOPY
;
570 case PAGE_EXECUTE_READ
:
571 *vprot
= VPROT_EXEC
| VPROT_READ
;
573 case PAGE_EXECUTE_READWRITE
:
574 *vprot
= VPROT_EXEC
| VPROT_READ
| VPROT_WRITE
;
576 case PAGE_EXECUTE_WRITECOPY
:
577 *vprot
= VPROT_EXEC
| VPROT_READ
| VPROT_WRITECOPY
;
583 return STATUS_INVALID_PARAMETER
;
585 if (protect
& PAGE_GUARD
) *vprot
|= VPROT_GUARD
;
586 if (protect
& PAGE_NOCACHE
) *vprot
|= VPROT_NOCACHE
;
587 return STATUS_SUCCESS
;
591 /***********************************************************************
594 * Change the protection of a range of pages.
600 static BOOL
VIRTUAL_SetProt( FILE_VIEW
*view
, /* [in] Pointer to view */
601 void *base
, /* [in] Starting address */
602 size_t size
, /* [in] Size in bytes */
603 BYTE vprot
) /* [in] Protections to use */
605 int unix_prot
= VIRTUAL_GetUnixProt(vprot
);
606 BYTE
*p
= view
->prot
+ (((char *)base
- (char *)view
->base
) >> page_shift
);
609 base
, (char *)base
+ size
- 1, VIRTUAL_GetProtStr( vprot
) );
611 if (view
->protect
& VPROT_WRITEWATCH
)
613 /* each page may need different protections depending on write watch flag */
618 p
[0] = vprot
| (p
[0] & VPROT_WRITEWATCH
);
619 unix_prot
= VIRTUAL_GetUnixProt( p
[0] );
620 for (count
= i
= 1; i
< size
>> page_shift
; i
++, count
++)
622 p
[i
] = vprot
| (p
[i
] & VPROT_WRITEWATCH
);
623 prot
= VIRTUAL_GetUnixProt( p
[i
] );
624 if (prot
== unix_prot
) continue;
625 mprotect( addr
, count
<< page_shift
, unix_prot
);
626 addr
+= count
<< page_shift
;
630 if (count
) mprotect( addr
, count
<< page_shift
, unix_prot
);
631 VIRTUAL_DEBUG_DUMP_VIEW( view
);
635 /* if setting stack guard pages, store the permissions first, as the guard may be
636 * triggered at any point after mprotect and change the permissions again */
637 if ((vprot
& VPROT_GUARD
) &&
638 (base
>= NtCurrentTeb()->DeallocationStack
) &&
639 (base
< NtCurrentTeb()->Tib
.StackBase
))
641 memset( p
, vprot
, size
>> page_shift
);
642 mprotect( base
, size
, unix_prot
);
643 VIRTUAL_DEBUG_DUMP_VIEW( view
);
647 if (force_exec_prot
&& !(view
->protect
& VPROT_NOEXEC
) &&
648 (unix_prot
& PROT_READ
) && !(unix_prot
& PROT_EXEC
))
650 TRACE( "forcing exec permission on %p-%p\n", base
, (char *)base
+ size
- 1 );
651 if (!mprotect( base
, size
, unix_prot
| PROT_EXEC
)) goto done
;
652 /* exec + write may legitimately fail, in that case fall back to write only */
653 if (!(unix_prot
& PROT_WRITE
)) return FALSE
;
656 if (mprotect( base
, size
, unix_prot
)) return FALSE
; /* FIXME: last error */
659 memset( p
, vprot
, size
>> page_shift
);
660 VIRTUAL_DEBUG_DUMP_VIEW( view
);
665 /***********************************************************************
666 * reset_write_watches
668 * Reset write watches in a memory range.
670 static void reset_write_watches( struct file_view
*view
, void *base
, SIZE_T size
)
675 BYTE
*p
= view
->prot
+ ((addr
- (char *)view
->base
) >> page_shift
);
677 p
[0] |= VPROT_WRITEWATCH
;
678 unix_prot
= VIRTUAL_GetUnixProt( p
[0] );
679 for (count
= i
= 1; i
< size
>> page_shift
; i
++, count
++)
681 p
[i
] |= VPROT_WRITEWATCH
;
682 prot
= VIRTUAL_GetUnixProt( p
[i
] );
683 if (prot
== unix_prot
) continue;
684 mprotect( addr
, count
<< page_shift
, unix_prot
);
685 addr
+= count
<< page_shift
;
689 if (count
) mprotect( addr
, count
<< page_shift
, unix_prot
);
693 /***********************************************************************
696 * Release the extra memory while keeping the range starting on the granularity boundary.
698 static inline void *unmap_extra_space( void *ptr
, size_t total_size
, size_t wanted_size
, size_t mask
)
700 if ((ULONG_PTR
)ptr
& mask
)
702 size_t extra
= mask
+ 1 - ((ULONG_PTR
)ptr
& mask
);
703 munmap( ptr
, extra
);
704 ptr
= (char *)ptr
+ extra
;
707 if (total_size
> wanted_size
)
708 munmap( (char *)ptr
+ wanted_size
, total_size
- wanted_size
);
722 /***********************************************************************
723 * alloc_reserved_area_callback
725 * Try to map some space inside a reserved area. Callback for wine_mmap_enum_reserved_areas.
727 static int alloc_reserved_area_callback( void *start
, size_t size
, void *arg
)
729 static void * const address_space_start
= (void *)0x110000;
730 struct alloc_area
*alloc
= arg
;
731 void *end
= (char *)start
+ size
;
733 if (start
< address_space_start
) start
= address_space_start
;
734 if (is_beyond_limit( start
, size
, alloc
->limit
)) end
= alloc
->limit
;
735 if (start
>= end
) return 0;
737 /* make sure we don't touch the preloader reserved range */
738 if (preload_reserve_end
>= start
)
740 if (preload_reserve_end
>= end
)
742 if (preload_reserve_start
<= start
) return 0; /* no space in that area */
743 if (preload_reserve_start
< end
) end
= preload_reserve_start
;
745 else if (preload_reserve_start
<= start
) start
= preload_reserve_end
;
748 /* range is split in two by the preloader reservation, try first part */
749 if ((alloc
->result
= find_free_area( start
, preload_reserve_start
, alloc
->size
,
750 alloc
->mask
, alloc
->top_down
)))
752 /* then fall through to try second part */
753 start
= preload_reserve_end
;
756 if ((alloc
->result
= find_free_area( start
, end
, alloc
->size
, alloc
->mask
, alloc
->top_down
)))
763 /***********************************************************************
766 * Create a view and mmap the corresponding memory area.
767 * The csVirtual section must be held by caller.
769 static NTSTATUS
map_view( struct file_view
**view_ret
, void *base
, size_t size
, size_t mask
,
770 int top_down
, unsigned int vprot
)
777 if (is_beyond_limit( base
, size
, address_space_limit
))
778 return STATUS_WORKING_SET_LIMIT_RANGE
;
780 switch (wine_mmap_is_in_reserved_area( base
, size
))
782 case -1: /* partially in a reserved area */
783 return STATUS_CONFLICTING_ADDRESSES
;
785 case 0: /* not in a reserved area, do a normal allocation */
786 if ((ptr
= wine_anon_mmap( base
, size
, VIRTUAL_GetUnixProt(vprot
), 0 )) == (void *)-1)
788 if (errno
== ENOMEM
) return STATUS_NO_MEMORY
;
789 return STATUS_INVALID_PARAMETER
;
793 /* We couldn't get the address we wanted */
794 if (is_beyond_limit( ptr
, size
, user_space_limit
)) add_reserved_area( ptr
, size
);
795 else munmap( ptr
, size
);
796 return STATUS_CONFLICTING_ADDRESSES
;
801 case 1: /* in a reserved area, make sure the address is available */
802 if (find_view_range( base
, size
)) return STATUS_CONFLICTING_ADDRESSES
;
803 /* replace the reserved area by our mapping */
804 if ((ptr
= wine_anon_mmap( base
, size
, VIRTUAL_GetUnixProt(vprot
), MAP_FIXED
)) != base
)
805 return STATUS_INVALID_PARAMETER
;
808 if (is_beyond_limit( ptr
, size
, working_set_limit
)) working_set_limit
= address_space_limit
;
812 size_t view_size
= size
+ mask
+ 1;
813 struct alloc_area alloc
;
817 alloc
.top_down
= top_down
;
818 alloc
.limit
= user_space_limit
;
819 if (wine_mmap_enum_reserved_areas( alloc_reserved_area_callback
, &alloc
, top_down
))
822 TRACE( "got mem in reserved area %p-%p\n", ptr
, (char *)ptr
+ size
);
823 if (wine_anon_mmap( ptr
, size
, VIRTUAL_GetUnixProt(vprot
), MAP_FIXED
) != ptr
)
824 return STATUS_INVALID_PARAMETER
;
830 if ((ptr
= wine_anon_mmap( NULL
, view_size
, VIRTUAL_GetUnixProt(vprot
), 0 )) == (void *)-1)
832 if (errno
== ENOMEM
) return STATUS_NO_MEMORY
;
833 return STATUS_INVALID_PARAMETER
;
835 TRACE( "got mem with anon mmap %p-%p\n", ptr
, (char *)ptr
+ size
);
836 /* if we got something beyond the user limit, unmap it and retry */
837 if (is_beyond_limit( ptr
, view_size
, user_space_limit
)) add_reserved_area( ptr
, view_size
);
840 ptr
= unmap_extra_space( ptr
, view_size
, size
, mask
);
843 status
= create_view( view_ret
, ptr
, size
, vprot
);
844 if (status
!= STATUS_SUCCESS
) unmap_area( ptr
, size
);
849 /***********************************************************************
852 * Wrapper for mmap() to map a file into a view, falling back to read if mmap fails.
853 * The csVirtual section must be held by caller.
855 static NTSTATUS
map_file_into_view( struct file_view
*view
, int fd
, size_t start
, size_t size
,
856 off_t offset
, unsigned int vprot
, BOOL removable
)
859 int prot
= VIRTUAL_GetUnixProt( vprot
| VPROT_COMMITTED
/* make sure it is accessible */ );
860 BOOL shared_write
= (vprot
& VPROT_WRITE
) != 0;
862 assert( start
< view
->size
);
863 assert( start
+ size
<= view
->size
);
865 /* only try mmap if media is not removable (or if we require write access) */
866 if (!removable
|| shared_write
)
868 int flags
= MAP_FIXED
| (shared_write
? MAP_SHARED
: MAP_PRIVATE
);
870 if (mmap( (char *)view
->base
+ start
, size
, prot
, flags
, fd
, offset
) != (void *)-1)
873 /* mmap() failed; if this is because the file offset is not */
874 /* page-aligned (EINVAL), or because the underlying filesystem */
875 /* does not support mmap() (ENOEXEC,ENODEV), we do it by hand. */
876 if ((errno
!= ENOEXEC
) && (errno
!= EINVAL
) && (errno
!= ENODEV
)) return FILE_GetNtStatus();
877 if (shared_write
) /* we cannot fake shared write mappings */
879 if (errno
== EINVAL
) return STATUS_INVALID_PARAMETER
;
880 ERR( "shared writable mmap not supported, broken filesystem?\n" );
881 return STATUS_NOT_SUPPORTED
;
885 /* Reserve the memory with an anonymous mmap */
886 ptr
= wine_anon_mmap( (char *)view
->base
+ start
, size
, PROT_READ
| PROT_WRITE
, MAP_FIXED
);
887 if (ptr
== (void *)-1) return FILE_GetNtStatus();
888 /* Now read in the file */
889 pread( fd
, ptr
, size
, offset
);
890 if (prot
!= (PROT_READ
|PROT_WRITE
)) mprotect( ptr
, size
, prot
); /* Set the right protection */
892 memset( view
->prot
+ (start
>> page_shift
), vprot
, ROUND_SIZE(start
,size
) >> page_shift
);
893 return STATUS_SUCCESS
;
897 /***********************************************************************
900 * Get the size of the committed range starting at base.
901 * Also return the protections for the first page.
903 static SIZE_T
get_committed_size( struct file_view
*view
, void *base
, BYTE
*vprot
)
907 start
= ((char *)base
- (char *)view
->base
) >> page_shift
;
908 *vprot
= view
->prot
[start
];
910 if (view
->mapping
&& !(view
->protect
& VPROT_COMMITTED
))
913 SERVER_START_REQ( get_mapping_committed_range
)
915 req
->handle
= wine_server_obj_handle( view
->mapping
);
916 req
->offset
= start
<< page_shift
;
917 if (!wine_server_call( req
))
920 if (reply
->committed
)
922 *vprot
|= VPROT_COMMITTED
;
923 for (i
= 0; i
< ret
>> page_shift
; i
++) view
->prot
[start
+i
] |= VPROT_COMMITTED
;
930 for (i
= start
+ 1; i
< view
->size
>> page_shift
; i
++)
931 if ((*vprot
^ view
->prot
[i
]) & VPROT_COMMITTED
) break;
932 return (i
- start
) << page_shift
;
936 /***********************************************************************
939 * Decommit some pages of a given view.
940 * The csVirtual section must be held by caller.
942 static NTSTATUS
decommit_pages( struct file_view
*view
, size_t start
, size_t size
)
944 if (wine_anon_mmap( (char *)view
->base
+ start
, size
, PROT_NONE
, MAP_FIXED
) != (void *)-1)
946 BYTE
*p
= view
->prot
+ (start
>> page_shift
);
948 while (size
--) *p
++ &= ~VPROT_COMMITTED
;
949 return STATUS_SUCCESS
;
951 return FILE_GetNtStatus();
955 /***********************************************************************
956 * allocate_dos_memory
958 * Allocate the DOS memory range.
960 static NTSTATUS
allocate_dos_memory( struct file_view
**view
, unsigned int vprot
)
964 void * const low_64k
= (void *)0x10000;
965 const size_t dosmem_size
= 0x110000;
966 int unix_prot
= VIRTUAL_GetUnixProt( vprot
);
969 /* check for existing view */
971 if ((ptr
= list_head( &views_list
)))
973 struct file_view
*first_view
= LIST_ENTRY( ptr
, struct file_view
, entry
);
974 if (first_view
->base
< (void *)dosmem_size
) return STATUS_CONFLICTING_ADDRESSES
;
977 /* check without the first 64K */
979 if (wine_mmap_is_in_reserved_area( low_64k
, dosmem_size
- 0x10000 ) != 1)
981 addr
= wine_anon_mmap( low_64k
, dosmem_size
- 0x10000, unix_prot
, 0 );
984 if (addr
!= (void *)-1) munmap( addr
, dosmem_size
- 0x10000 );
985 return map_view( view
, NULL
, dosmem_size
, 0xffff, 0, vprot
);
989 /* now try to allocate the low 64K too */
991 if (wine_mmap_is_in_reserved_area( NULL
, 0x10000 ) != 1)
993 addr
= wine_anon_mmap( (void *)page_size
, 0x10000 - page_size
, unix_prot
, 0 );
994 if (addr
== (void *)page_size
)
997 TRACE( "successfully mapped low 64K range\n" );
1001 if (addr
!= (void *)-1) munmap( addr
, 0x10000 - page_size
);
1003 TRACE( "failed to map low 64K range\n" );
1007 /* now reserve the whole range */
1009 size
= (char *)dosmem_size
- (char *)addr
;
1010 wine_anon_mmap( addr
, size
, unix_prot
, MAP_FIXED
);
1011 return create_view( view
, addr
, size
, vprot
);
1015 /***********************************************************************
1018 * Map an executable (PE format) image into memory.
1020 static NTSTATUS
map_image( HANDLE hmapping
, int fd
, char *base
, SIZE_T total_size
, SIZE_T mask
,
1021 SIZE_T header_size
, int shared_fd
, HANDLE dup_mapping
, PVOID
*addr_ptr
)
1023 IMAGE_DOS_HEADER
*dos
;
1024 IMAGE_NT_HEADERS
*nt
;
1025 IMAGE_SECTION_HEADER
*sec
;
1026 IMAGE_DATA_DIRECTORY
*imports
;
1027 NTSTATUS status
= STATUS_CONFLICTING_ADDRESSES
;
1032 struct file_view
*view
= NULL
;
1033 char *ptr
, *header_end
;
1036 /* zero-map the whole range */
1038 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1040 if (base
>= (char *)0x110000) /* make sure the DOS area remains free */
1041 status
= map_view( &view
, base
, total_size
, mask
, FALSE
,
1042 VPROT_COMMITTED
| VPROT_READ
| VPROT_EXEC
| VPROT_WRITECOPY
| VPROT_IMAGE
);
1044 if (status
!= STATUS_SUCCESS
)
1045 status
= map_view( &view
, NULL
, total_size
, mask
, FALSE
,
1046 VPROT_COMMITTED
| VPROT_READ
| VPROT_EXEC
| VPROT_WRITECOPY
| VPROT_IMAGE
);
1048 if (status
!= STATUS_SUCCESS
) goto error
;
1051 TRACE_(module
)( "mapped PE file at %p-%p\n", ptr
, ptr
+ total_size
);
1053 /* map the header */
1055 if (fstat( fd
, &st
) == -1)
1057 status
= FILE_GetNtStatus();
1060 status
= STATUS_INVALID_IMAGE_FORMAT
; /* generic error */
1061 if (!st
.st_size
) goto error
;
1062 header_size
= min( header_size
, st
.st_size
);
1063 if (map_file_into_view( view
, fd
, 0, header_size
, 0, VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITECOPY
,
1064 !dup_mapping
) != STATUS_SUCCESS
) goto error
;
1065 dos
= (IMAGE_DOS_HEADER
*)ptr
;
1066 nt
= (IMAGE_NT_HEADERS
*)(ptr
+ dos
->e_lfanew
);
1067 header_end
= ptr
+ ROUND_SIZE( 0, header_size
);
1068 memset( ptr
+ header_size
, 0, header_end
- (ptr
+ header_size
) );
1069 if ((char *)(nt
+ 1) > header_end
) goto error
;
1070 sec
= (IMAGE_SECTION_HEADER
*)((char*)&nt
->OptionalHeader
+nt
->FileHeader
.SizeOfOptionalHeader
);
1071 if ((char *)(sec
+ nt
->FileHeader
.NumberOfSections
) > header_end
) goto error
;
1073 imports
= nt
->OptionalHeader
.DataDirectory
+ IMAGE_DIRECTORY_ENTRY_IMPORT
;
1074 if (!imports
->Size
|| !imports
->VirtualAddress
) imports
= NULL
;
1076 /* check the architecture */
1079 if (nt
->FileHeader
.Machine
!= IMAGE_FILE_MACHINE_AMD64
)
1081 if (nt
->FileHeader
.Machine
!= IMAGE_FILE_MACHINE_I386
)
1084 MESSAGE("Trying to load PE image for unsupported architecture (");
1085 switch (nt
->FileHeader
.Machine
)
1087 case IMAGE_FILE_MACHINE_UNKNOWN
: MESSAGE("Unknown"); break;
1088 case IMAGE_FILE_MACHINE_I860
: MESSAGE("I860"); break;
1089 case IMAGE_FILE_MACHINE_I386
: MESSAGE("I386"); break;
1090 case IMAGE_FILE_MACHINE_R3000
: MESSAGE("R3000"); break;
1091 case IMAGE_FILE_MACHINE_R4000
: MESSAGE("R4000"); break;
1092 case IMAGE_FILE_MACHINE_R10000
: MESSAGE("R10000"); break;
1093 case IMAGE_FILE_MACHINE_ALPHA
: MESSAGE("Alpha"); break;
1094 case IMAGE_FILE_MACHINE_POWERPC
: MESSAGE("PowerPC"); break;
1095 case IMAGE_FILE_MACHINE_IA64
: MESSAGE("IA-64"); break;
1096 case IMAGE_FILE_MACHINE_ALPHA64
: MESSAGE("Alpha-64"); break;
1097 case IMAGE_FILE_MACHINE_AMD64
: MESSAGE("AMD-64"); break;
1098 case IMAGE_FILE_MACHINE_ARM
: MESSAGE("ARM"); break;
1099 default: MESSAGE("Unknown-%04x", nt
->FileHeader
.Machine
); break;
1105 /* check for non page-aligned binary */
1107 if (nt
->OptionalHeader
.SectionAlignment
<= page_mask
)
1109 /* unaligned sections, this happens for native subsystem binaries */
1110 /* in that case Windows simply maps in the whole file */
1112 if (map_file_into_view( view
, fd
, 0, total_size
, 0, VPROT_COMMITTED
| VPROT_READ
,
1113 !dup_mapping
) != STATUS_SUCCESS
) goto error
;
1115 /* check that all sections are loaded at the right offset */
1116 if (nt
->OptionalHeader
.FileAlignment
!= nt
->OptionalHeader
.SectionAlignment
) goto error
;
1117 for (i
= 0; i
< nt
->FileHeader
.NumberOfSections
; i
++)
1119 if (sec
[i
].VirtualAddress
!= sec
[i
].PointerToRawData
)
1120 goto error
; /* Windows refuses to load in that case too */
1123 /* set the image protections */
1124 VIRTUAL_SetProt( view
, ptr
, total_size
,
1125 VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITECOPY
| VPROT_EXEC
);
1127 /* no relocations are performed on non page-aligned binaries */
1132 /* map all the sections */
1134 for (i
= pos
= 0; i
< nt
->FileHeader
.NumberOfSections
; i
++, sec
++)
1136 static const SIZE_T sector_align
= 0x1ff;
1137 SIZE_T map_size
, file_start
, file_size
, end
;
1139 if (!sec
->Misc
.VirtualSize
)
1140 map_size
= ROUND_SIZE( 0, sec
->SizeOfRawData
);
1142 map_size
= ROUND_SIZE( 0, sec
->Misc
.VirtualSize
);
1144 /* file positions are rounded to sector boundaries regardless of OptionalHeader.FileAlignment */
1145 file_start
= sec
->PointerToRawData
& ~sector_align
;
1146 file_size
= (sec
->SizeOfRawData
+ (sec
->PointerToRawData
& sector_align
) + sector_align
) & ~sector_align
;
1147 if (file_size
> map_size
) file_size
= map_size
;
1149 /* a few sanity checks */
1150 end
= sec
->VirtualAddress
+ ROUND_SIZE( sec
->VirtualAddress
, map_size
);
1151 if (sec
->VirtualAddress
> total_size
|| end
> total_size
|| end
< sec
->VirtualAddress
)
1153 WARN_(module
)( "Section %.8s too large (%x+%lx/%lx)\n",
1154 sec
->Name
, sec
->VirtualAddress
, map_size
, total_size
);
1158 if ((sec
->Characteristics
& IMAGE_SCN_MEM_SHARED
) &&
1159 (sec
->Characteristics
& IMAGE_SCN_MEM_WRITE
))
1161 TRACE_(module
)( "mapping shared section %.8s at %p off %x (%x) size %lx (%lx) flags %x\n",
1162 sec
->Name
, ptr
+ sec
->VirtualAddress
,
1163 sec
->PointerToRawData
, (int)pos
, file_size
, map_size
,
1164 sec
->Characteristics
);
1165 if (map_file_into_view( view
, shared_fd
, sec
->VirtualAddress
, map_size
, pos
,
1166 VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITE
,
1167 FALSE
) != STATUS_SUCCESS
)
1169 ERR_(module
)( "Could not map shared section %.8s\n", sec
->Name
);
1173 /* check if the import directory falls inside this section */
1174 if (imports
&& imports
->VirtualAddress
>= sec
->VirtualAddress
&&
1175 imports
->VirtualAddress
< sec
->VirtualAddress
+ map_size
)
1177 UINT_PTR base
= imports
->VirtualAddress
& ~page_mask
;
1178 UINT_PTR end
= base
+ ROUND_SIZE( imports
->VirtualAddress
, imports
->Size
);
1179 if (end
> sec
->VirtualAddress
+ map_size
) end
= sec
->VirtualAddress
+ map_size
;
1181 map_file_into_view( view
, shared_fd
, base
, end
- base
,
1182 pos
+ (base
- sec
->VirtualAddress
),
1183 VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITECOPY
,
1190 TRACE_(module
)( "mapping section %.8s at %p off %x size %x virt %x flags %x\n",
1191 sec
->Name
, ptr
+ sec
->VirtualAddress
,
1192 sec
->PointerToRawData
, sec
->SizeOfRawData
,
1193 sec
->Misc
.VirtualSize
, sec
->Characteristics
);
1195 if (!sec
->PointerToRawData
|| !file_size
) continue;
1197 /* Note: if the section is not aligned properly map_file_into_view will magically
1198 * fall back to read(), so we don't need to check anything here.
1200 end
= file_start
+ file_size
;
1201 if (sec
->PointerToRawData
>= st
.st_size
||
1202 end
> ((st
.st_size
+ sector_align
) & ~sector_align
) ||
1204 map_file_into_view( view
, fd
, sec
->VirtualAddress
, file_size
, file_start
,
1205 VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITECOPY
,
1206 !dup_mapping
) != STATUS_SUCCESS
)
1208 ERR_(module
)( "Could not map section %.8s, file probably truncated\n", sec
->Name
);
1212 if (file_size
& page_mask
)
1214 end
= ROUND_SIZE( 0, file_size
);
1215 if (end
> map_size
) end
= map_size
;
1216 TRACE_(module
)("clearing %p - %p\n",
1217 ptr
+ sec
->VirtualAddress
+ file_size
,
1218 ptr
+ sec
->VirtualAddress
+ end
);
1219 memset( ptr
+ sec
->VirtualAddress
+ file_size
, 0, end
- file_size
);
1224 /* perform base relocation, if necessary */
1227 ((nt
->FileHeader
.Characteristics
& IMAGE_FILE_DLL
) ||
1228 !NtCurrentTeb()->Peb
->ImageBaseAddress
) )
1230 IMAGE_BASE_RELOCATION
*rel
, *end
;
1231 const IMAGE_DATA_DIRECTORY
*relocs
;
1233 if (nt
->FileHeader
.Characteristics
& IMAGE_FILE_RELOCS_STRIPPED
)
1235 WARN_(module
)( "Need to relocate module from %p to %p, but there are no relocation records\n",
1237 status
= STATUS_CONFLICTING_ADDRESSES
;
1241 TRACE_(module
)( "relocating from %p-%p to %p-%p\n",
1242 base
, base
+ total_size
, ptr
, ptr
+ total_size
);
1244 relocs
= &nt
->OptionalHeader
.DataDirectory
[IMAGE_DIRECTORY_ENTRY_BASERELOC
];
1245 rel
= (IMAGE_BASE_RELOCATION
*)(ptr
+ relocs
->VirtualAddress
);
1246 end
= (IMAGE_BASE_RELOCATION
*)(ptr
+ relocs
->VirtualAddress
+ relocs
->Size
);
1249 while (rel
< end
- 1 && rel
->SizeOfBlock
)
1251 if (rel
->VirtualAddress
>= total_size
)
1253 WARN_(module
)( "invalid address %p in relocation %p\n", ptr
+ rel
->VirtualAddress
, rel
);
1254 status
= STATUS_ACCESS_VIOLATION
;
1257 rel
= LdrProcessRelocationBlock( ptr
+ rel
->VirtualAddress
,
1258 (rel
->SizeOfBlock
- sizeof(*rel
)) / sizeof(USHORT
),
1259 (USHORT
*)(rel
+ 1), delta
);
1260 if (!rel
) goto error
;
1264 /* set the image protections */
1266 VIRTUAL_SetProt( view
, ptr
, ROUND_SIZE( 0, header_size
), VPROT_COMMITTED
| VPROT_READ
);
1268 sec
= (IMAGE_SECTION_HEADER
*)((char *)&nt
->OptionalHeader
+nt
->FileHeader
.SizeOfOptionalHeader
);
1269 for (i
= 0; i
< nt
->FileHeader
.NumberOfSections
; i
++, sec
++)
1272 BYTE vprot
= VPROT_COMMITTED
;
1274 if (sec
->Misc
.VirtualSize
)
1275 size
= ROUND_SIZE( sec
->VirtualAddress
, sec
->Misc
.VirtualSize
);
1277 size
= ROUND_SIZE( sec
->VirtualAddress
, sec
->SizeOfRawData
);
1279 if (sec
->Characteristics
& IMAGE_SCN_MEM_READ
) vprot
|= VPROT_READ
;
1280 if (sec
->Characteristics
& IMAGE_SCN_MEM_WRITE
) vprot
|= VPROT_READ
|VPROT_WRITECOPY
;
1281 if (sec
->Characteristics
& IMAGE_SCN_MEM_EXECUTE
) vprot
|= VPROT_EXEC
;
1283 /* Dumb game crack lets the AOEP point into a data section. Adjust. */
1284 if ((nt
->OptionalHeader
.AddressOfEntryPoint
>= sec
->VirtualAddress
) &&
1285 (nt
->OptionalHeader
.AddressOfEntryPoint
< sec
->VirtualAddress
+ size
))
1286 vprot
|= VPROT_EXEC
;
1288 VIRTUAL_SetProt( view
, ptr
+ sec
->VirtualAddress
, size
, vprot
);
1292 view
->mapping
= dup_mapping
;
1293 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1296 #ifdef VALGRIND_LOAD_PDB_DEBUGINFO
1297 VALGRIND_LOAD_PDB_DEBUGINFO(fd
, ptr
, total_size
, delta
);
1299 if (ptr
!= base
) return STATUS_IMAGE_NOT_AT_BASE
;
1300 return STATUS_SUCCESS
;
1303 if (view
) delete_view( view
);
1304 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1305 if (dup_mapping
) NtClose( dup_mapping
);
1310 /* callback for wine_mmap_enum_reserved_areas to allocate space for the virtual heap */
1311 static int alloc_virtual_heap( void *base
, size_t size
, void *arg
)
1313 void **heap_base
= arg
;
1315 if (is_beyond_limit( base
, size
, address_space_limit
)) address_space_limit
= (char *)base
+ size
;
1316 if (size
< VIRTUAL_HEAP_SIZE
) return 0;
1317 *heap_base
= wine_anon_mmap( (char *)base
+ size
- VIRTUAL_HEAP_SIZE
,
1318 VIRTUAL_HEAP_SIZE
, PROT_READ
|PROT_WRITE
, MAP_FIXED
);
1319 return (*heap_base
!= (void *)-1);
1322 /***********************************************************************
1325 void virtual_init(void)
1327 const char *preload
;
1329 struct file_view
*heap_view
;
1332 page_size
= getpagesize();
1333 page_mask
= page_size
- 1;
1334 /* Make sure we have a power of 2 */
1335 assert( !(page_size
& page_mask
) );
1337 while ((1 << page_shift
) != page_size
) page_shift
++;
1338 user_space_limit
= working_set_limit
= address_space_limit
= (void *)~page_mask
;
1339 #endif /* page_mask */
1340 if ((preload
= getenv("WINEPRELOADRESERVE")))
1342 unsigned long start
, end
;
1343 if (sscanf( preload
, "%lx-%lx", &start
, &end
) == 2)
1345 preload_reserve_start
= (void *)start
;
1346 preload_reserve_end
= (void *)end
;
1350 /* try to find space in a reserved area for the virtual heap */
1351 if (!wine_mmap_enum_reserved_areas( alloc_virtual_heap
, &heap_base
, 1 ))
1352 heap_base
= wine_anon_mmap( NULL
, VIRTUAL_HEAP_SIZE
, PROT_READ
|PROT_WRITE
, 0 );
1354 assert( heap_base
!= (void *)-1 );
1355 virtual_heap
= RtlCreateHeap( HEAP_NO_SERIALIZE
, heap_base
, VIRTUAL_HEAP_SIZE
,
1356 VIRTUAL_HEAP_SIZE
, NULL
, NULL
);
1357 create_view( &heap_view
, heap_base
, VIRTUAL_HEAP_SIZE
, VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITE
);
1361 /***********************************************************************
1362 * virtual_init_threading
1364 void virtual_init_threading(void)
1370 /***********************************************************************
1371 * virtual_get_system_info
1373 void virtual_get_system_info( SYSTEM_BASIC_INFORMATION
*info
)
1376 info
->KeMaximumIncrement
= 0; /* FIXME */
1377 info
->PageSize
= page_size
;
1378 info
->MmLowestPhysicalPage
= 1;
1379 info
->MmHighestPhysicalPage
= 0x7fffffff / page_size
;
1380 info
->MmNumberOfPhysicalPages
= info
->MmHighestPhysicalPage
- info
->MmLowestPhysicalPage
;
1381 info
->AllocationGranularity
= get_mask(0) + 1;
1382 info
->LowestUserAddress
= (void *)0x10000;
1383 info
->HighestUserAddress
= (char *)user_space_limit
- 1;
1384 info
->ActiveProcessorsAffinityMask
= (1 << NtCurrentTeb()->Peb
->NumberOfProcessors
) - 1;
1385 info
->NumberOfProcessors
= NtCurrentTeb()->Peb
->NumberOfProcessors
;
1389 /***********************************************************************
1390 * virtual_create_system_view
1392 NTSTATUS
virtual_create_system_view( void *base
, SIZE_T size
, DWORD vprot
)
1398 size
= ROUND_SIZE( base
, size
);
1399 base
= ROUND_ADDR( base
, page_mask
);
1400 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1401 status
= create_view( &view
, base
, size
, vprot
);
1402 if (!status
) TRACE( "created %p-%p\n", base
, (char *)base
+ size
);
1403 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1408 /***********************************************************************
1409 * virtual_alloc_thread_stack
1411 NTSTATUS
virtual_alloc_thread_stack( TEB
*teb
, SIZE_T reserve_size
, SIZE_T commit_size
)
1418 if (!reserve_size
|| !commit_size
)
1420 IMAGE_NT_HEADERS
*nt
= RtlImageNtHeader( NtCurrentTeb()->Peb
->ImageBaseAddress
);
1421 if (!reserve_size
) reserve_size
= nt
->OptionalHeader
.SizeOfStackReserve
;
1422 if (!commit_size
) commit_size
= nt
->OptionalHeader
.SizeOfStackCommit
;
1425 size
= max( reserve_size
, commit_size
);
1426 if (size
< 1024 * 1024) size
= 1024 * 1024; /* Xlib needs a large stack */
1427 size
= (size
+ 0xffff) & ~0xffff; /* round to 64K boundary */
1429 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1431 if ((status
= map_view( &view
, NULL
, size
, 0xffff, 0,
1432 VPROT_READ
| VPROT_WRITE
| VPROT_COMMITTED
| VPROT_VALLOC
)) != STATUS_SUCCESS
)
1435 #ifdef VALGRIND_STACK_REGISTER
1436 VALGRIND_STACK_REGISTER( view
->base
, (char *)view
->base
+ view
->size
);
1439 /* setup no access guard page */
1440 VIRTUAL_SetProt( view
, view
->base
, page_size
, VPROT_COMMITTED
);
1441 VIRTUAL_SetProt( view
, (char *)view
->base
+ page_size
, page_size
,
1442 VPROT_READ
| VPROT_WRITE
| VPROT_COMMITTED
| VPROT_GUARD
);
1444 /* note: limit is lower than base since the stack grows down */
1445 teb
->DeallocationStack
= view
->base
;
1446 teb
->Tib
.StackBase
= (char *)view
->base
+ view
->size
;
1447 teb
->Tib
.StackLimit
= (char *)view
->base
+ 2 * page_size
;
1449 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1454 /***********************************************************************
1455 * virtual_clear_thread_stack
1457 * Clear the stack contents before calling the main entry point, some broken apps need that.
1459 void virtual_clear_thread_stack(void)
1461 void *stack
= NtCurrentTeb()->Tib
.StackLimit
;
1462 size_t size
= (char *)NtCurrentTeb()->Tib
.StackBase
- (char *)NtCurrentTeb()->Tib
.StackLimit
;
1464 wine_anon_mmap( stack
, size
, PROT_READ
| PROT_WRITE
, MAP_FIXED
);
1465 if (force_exec_prot
) mprotect( stack
, size
, PROT_READ
| PROT_WRITE
| PROT_EXEC
);
1469 /***********************************************************************
1470 * virtual_handle_fault
1472 NTSTATUS
virtual_handle_fault( LPCVOID addr
, DWORD err
)
1475 NTSTATUS ret
= STATUS_ACCESS_VIOLATION
;
1478 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1479 if ((view
= VIRTUAL_FindView( addr
, 0 )))
1481 void *page
= ROUND_ADDR( addr
, page_mask
);
1482 BYTE
*vprot
= &view
->prot
[((const char *)page
- (const char *)view
->base
) >> page_shift
];
1483 if (*vprot
& VPROT_GUARD
)
1485 VIRTUAL_SetProt( view
, page
, page_size
, *vprot
& ~VPROT_GUARD
);
1486 ret
= STATUS_GUARD_PAGE_VIOLATION
;
1488 if ((err
& EXCEPTION_WRITE_FAULT
) && (view
->protect
& VPROT_WRITEWATCH
))
1490 if (*vprot
& VPROT_WRITEWATCH
)
1492 *vprot
&= ~VPROT_WRITEWATCH
;
1493 VIRTUAL_SetProt( view
, page
, page_size
, *vprot
);
1495 /* ignore fault if page is writable now */
1496 if (VIRTUAL_GetUnixProt( *vprot
) & PROT_WRITE
) ret
= STATUS_SUCCESS
;
1499 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1505 /***********************************************************************
1506 * virtual_handle_stack_fault
1508 * Handle an access fault inside the current thread stack.
1509 * Called from inside a signal handler.
1511 BOOL
virtual_handle_stack_fault( void *addr
)
1516 RtlEnterCriticalSection( &csVirtual
); /* no need for signal masking inside signal handler */
1517 if ((view
= VIRTUAL_FindView( addr
, 0 )))
1519 void *page
= ROUND_ADDR( addr
, page_mask
);
1520 BYTE vprot
= view
->prot
[((const char *)page
- (const char *)view
->base
) >> page_shift
];
1521 if (vprot
& VPROT_GUARD
)
1523 VIRTUAL_SetProt( view
, page
, page_size
, vprot
& ~VPROT_GUARD
);
1524 if ((char *)page
+ page_size
== NtCurrentTeb()->Tib
.StackLimit
)
1525 NtCurrentTeb()->Tib
.StackLimit
= page
;
1529 RtlLeaveCriticalSection( &csVirtual
);
1534 /***********************************************************************
1535 * virtual_check_buffer_for_read
1537 * Check if a memory buffer can be read, triggering page faults if needed for DIB section access.
1539 BOOL
virtual_check_buffer_for_read( const void *ptr
, SIZE_T size
)
1541 if (!size
) return TRUE
;
1542 if (!ptr
) return FALSE
;
1546 volatile const char *p
= ptr
;
1548 SIZE_T count
= size
;
1550 while (count
> page_size
)
1557 dummy
= p
[count
- 1];
1568 /***********************************************************************
1569 * virtual_check_buffer_for_write
1571 * Check if a memory buffer can be written to, triggering page faults if needed for write watches.
1573 BOOL
virtual_check_buffer_for_write( void *ptr
, SIZE_T size
)
1575 if (!size
) return TRUE
;
1576 if (!ptr
) return FALSE
;
1580 volatile char *p
= ptr
;
1581 SIZE_T count
= size
;
1583 while (count
> page_size
)
1601 /***********************************************************************
1602 * VIRTUAL_SetForceExec
1604 * Whether to force exec prot on all views.
1606 void VIRTUAL_SetForceExec( BOOL enable
)
1608 struct file_view
*view
;
1611 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1612 if (!force_exec_prot
!= !enable
) /* change all existing views */
1614 force_exec_prot
= enable
;
1616 LIST_FOR_EACH_ENTRY( view
, &views_list
, struct file_view
, entry
)
1619 char *addr
= view
->base
;
1620 BYTE commit
= view
->mapping
? VPROT_COMMITTED
: 0; /* file mappings are always accessible */
1621 int unix_prot
= VIRTUAL_GetUnixProt( view
->prot
[0] | commit
);
1623 if (view
->protect
& VPROT_NOEXEC
) continue;
1624 for (count
= i
= 1; i
< view
->size
>> page_shift
; i
++, count
++)
1626 int prot
= VIRTUAL_GetUnixProt( view
->prot
[i
] | commit
);
1627 if (prot
== unix_prot
) continue;
1628 if ((unix_prot
& PROT_READ
) && !(unix_prot
& PROT_EXEC
))
1630 TRACE( "%s exec prot for %p-%p\n",
1631 force_exec_prot
? "enabling" : "disabling",
1632 addr
, addr
+ (count
<< page_shift
) - 1 );
1633 mprotect( addr
, count
<< page_shift
,
1634 unix_prot
| (force_exec_prot
? PROT_EXEC
: 0) );
1636 addr
+= (count
<< page_shift
);
1642 if ((unix_prot
& PROT_READ
) && !(unix_prot
& PROT_EXEC
))
1644 TRACE( "%s exec prot for %p-%p\n",
1645 force_exec_prot
? "enabling" : "disabling",
1646 addr
, addr
+ (count
<< page_shift
) - 1 );
1647 mprotect( addr
, count
<< page_shift
,
1648 unix_prot
| (force_exec_prot
? PROT_EXEC
: 0) );
1653 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1662 /* free reserved areas above the limit; callback for wine_mmap_enum_reserved_areas */
1663 static int free_reserved_memory( void *base
, size_t size
, void *arg
)
1665 struct free_range
*range
= arg
;
1667 if ((char *)base
>= range
->limit
) return 0;
1668 if ((char *)base
+ size
<= range
->base
) return 0;
1669 if ((char *)base
< range
->base
)
1671 size
-= range
->base
- (char *)base
;
1674 if ((char *)base
+ size
> range
->limit
) size
= range
->limit
- (char *)base
;
1675 remove_reserved_area( base
, size
);
1676 return 1; /* stop enumeration since the list has changed */
1679 /***********************************************************************
1680 * virtual_release_address_space
1682 * Release some address space once we have loaded and initialized the app.
1684 void virtual_release_address_space( BOOL free_high_mem
)
1686 struct free_range range
;
1689 if (user_space_limit
== address_space_limit
) return; /* no need to free anything */
1691 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1693 /* no large address space on win9x */
1694 if (free_high_mem
&& NtCurrentTeb()->Peb
->OSPlatformId
== VER_PLATFORM_WIN32_NT
)
1696 range
.base
= (char *)0x82000000;
1697 range
.limit
= address_space_limit
;
1698 while (wine_mmap_enum_reserved_areas( free_reserved_memory
, &range
, 1 )) /* nothing */;
1699 user_space_limit
= working_set_limit
= address_space_limit
;
1703 #ifndef __APPLE__ /* dyld doesn't support parts of the WINE_DOS segment being unmapped */
1704 range
.base
= (char *)0x20000000;
1705 range
.limit
= (char *)0x7f000000;
1706 while (wine_mmap_enum_reserved_areas( free_reserved_memory
, &range
, 0 )) /* nothing */;
1710 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1714 /***********************************************************************
1715 * NtAllocateVirtualMemory (NTDLL.@)
1716 * ZwAllocateVirtualMemory (NTDLL.@)
1718 NTSTATUS WINAPI
NtAllocateVirtualMemory( HANDLE process
, PVOID
*ret
, ULONG zero_bits
,
1719 SIZE_T
*size_ptr
, ULONG type
, ULONG protect
)
1723 SIZE_T size
= *size_ptr
;
1724 SIZE_T mask
= get_mask( zero_bits
);
1725 NTSTATUS status
= STATUS_SUCCESS
;
1726 struct file_view
*view
;
1729 TRACE("%p %p %08lx %x %08x\n", process
, *ret
, size
, type
, protect
);
1731 if (!size
) return STATUS_INVALID_PARAMETER
;
1733 if (process
!= NtCurrentProcess())
1736 apc_result_t result
;
1738 memset( &call
, 0, sizeof(call
) );
1740 call
.virtual_alloc
.type
= APC_VIRTUAL_ALLOC
;
1741 call
.virtual_alloc
.addr
= wine_server_client_ptr( *ret
);
1742 call
.virtual_alloc
.size
= *size_ptr
;
1743 call
.virtual_alloc
.zero_bits
= zero_bits
;
1744 call
.virtual_alloc
.op_type
= type
;
1745 call
.virtual_alloc
.prot
= protect
;
1746 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
1747 if (status
!= STATUS_SUCCESS
) return status
;
1749 if (result
.virtual_alloc
.status
== STATUS_SUCCESS
)
1751 *ret
= wine_server_get_ptr( result
.virtual_alloc
.addr
);
1752 *size_ptr
= result
.virtual_alloc
.size
;
1754 return result
.virtual_alloc
.status
;
1757 /* Round parameters to a page boundary */
1759 if (is_beyond_limit( 0, size
, working_set_limit
)) return STATUS_WORKING_SET_LIMIT_RANGE
;
1761 if ((status
= get_vprot_flags( protect
, &vprot
))) return status
;
1762 vprot
|= VPROT_VALLOC
;
1763 if (type
& MEM_COMMIT
) vprot
|= VPROT_COMMITTED
;
1767 if (type
& MEM_RESERVE
) /* Round down to 64k boundary */
1768 base
= ROUND_ADDR( *ret
, mask
);
1770 base
= ROUND_ADDR( *ret
, page_mask
);
1771 size
= (((UINT_PTR
)*ret
+ size
+ page_mask
) & ~page_mask
) - (UINT_PTR
)base
;
1773 /* address 1 is magic to mean DOS area */
1774 if (!base
&& *ret
== (void *)1 && size
== 0x110000)
1776 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1777 status
= allocate_dos_memory( &view
, vprot
);
1778 if (status
== STATUS_SUCCESS
)
1781 *size_ptr
= view
->size
;
1783 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1787 /* disallow low 64k, wrap-around and kernel space */
1788 if (((char *)base
< (char *)0x10000) ||
1789 ((char *)base
+ size
< (char *)base
) ||
1790 is_beyond_limit( base
, size
, address_space_limit
))
1791 return STATUS_INVALID_PARAMETER
;
1796 size
= (size
+ page_mask
) & ~page_mask
;
1799 /* Compute the alloc type flags */
1801 if (!(type
& (MEM_COMMIT
| MEM_RESERVE
| MEM_RESET
)) ||
1802 (type
& ~(MEM_COMMIT
| MEM_RESERVE
| MEM_TOP_DOWN
| MEM_WRITE_WATCH
| MEM_RESET
)))
1804 WARN("called with wrong alloc type flags (%08x) !\n", type
);
1805 return STATUS_INVALID_PARAMETER
;
1808 /* Reserve the memory */
1810 if (use_locks
) server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1812 if ((type
& MEM_RESERVE
) || !base
)
1814 if (type
& MEM_WRITE_WATCH
) vprot
|= VPROT_WRITEWATCH
;
1815 status
= map_view( &view
, base
, size
, mask
, type
& MEM_TOP_DOWN
, vprot
);
1816 if (status
== STATUS_SUCCESS
) base
= view
->base
;
1818 else if (type
& MEM_RESET
)
1820 if (!(view
= VIRTUAL_FindView( base
, size
))) status
= STATUS_NOT_MAPPED_VIEW
;
1821 else madvise( base
, size
, MADV_DONTNEED
);
1823 else /* commit the pages */
1825 if (!(view
= VIRTUAL_FindView( base
, size
))) status
= STATUS_NOT_MAPPED_VIEW
;
1826 else if (!VIRTUAL_SetProt( view
, base
, size
, vprot
)) status
= STATUS_ACCESS_DENIED
;
1827 else if (view
->mapping
&& !(view
->protect
& VPROT_COMMITTED
))
1829 SERVER_START_REQ( add_mapping_committed_range
)
1831 req
->handle
= wine_server_obj_handle( view
->mapping
);
1832 req
->offset
= (char *)base
- (char *)view
->base
;
1834 wine_server_call( req
);
1840 if (use_locks
) server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1842 if (status
== STATUS_SUCCESS
)
1851 /***********************************************************************
1852 * NtFreeVirtualMemory (NTDLL.@)
1853 * ZwFreeVirtualMemory (NTDLL.@)
1855 NTSTATUS WINAPI
NtFreeVirtualMemory( HANDLE process
, PVOID
*addr_ptr
, SIZE_T
*size_ptr
, ULONG type
)
1860 NTSTATUS status
= STATUS_SUCCESS
;
1861 LPVOID addr
= *addr_ptr
;
1862 SIZE_T size
= *size_ptr
;
1864 TRACE("%p %p %08lx %x\n", process
, addr
, size
, type
);
1866 if (process
!= NtCurrentProcess())
1869 apc_result_t result
;
1871 memset( &call
, 0, sizeof(call
) );
1873 call
.virtual_free
.type
= APC_VIRTUAL_FREE
;
1874 call
.virtual_free
.addr
= wine_server_client_ptr( addr
);
1875 call
.virtual_free
.size
= size
;
1876 call
.virtual_free
.op_type
= type
;
1877 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
1878 if (status
!= STATUS_SUCCESS
) return status
;
1880 if (result
.virtual_free
.status
== STATUS_SUCCESS
)
1882 *addr_ptr
= wine_server_get_ptr( result
.virtual_free
.addr
);
1883 *size_ptr
= result
.virtual_free
.size
;
1885 return result
.virtual_free
.status
;
1888 /* Fix the parameters */
1890 size
= ROUND_SIZE( addr
, size
);
1891 base
= ROUND_ADDR( addr
, page_mask
);
1893 /* avoid freeing the DOS area when a broken app passes a NULL pointer */
1894 if (!base
) return STATUS_INVALID_PARAMETER
;
1896 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1898 if (!(view
= VIRTUAL_FindView( base
, size
)) || !(view
->protect
& VPROT_VALLOC
))
1900 status
= STATUS_INVALID_PARAMETER
;
1902 else if (type
== MEM_RELEASE
)
1904 /* Free the pages */
1906 if (size
|| (base
!= view
->base
)) status
= STATUS_INVALID_PARAMETER
;
1909 delete_view( view
);
1914 else if (type
== MEM_DECOMMIT
)
1916 status
= decommit_pages( view
, base
- (char *)view
->base
, size
);
1917 if (status
== STATUS_SUCCESS
)
1925 WARN("called with wrong free type flags (%08x) !\n", type
);
1926 status
= STATUS_INVALID_PARAMETER
;
1929 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1934 /***********************************************************************
1935 * NtProtectVirtualMemory (NTDLL.@)
1936 * ZwProtectVirtualMemory (NTDLL.@)
1938 NTSTATUS WINAPI
NtProtectVirtualMemory( HANDLE process
, PVOID
*addr_ptr
, SIZE_T
*size_ptr
,
1939 ULONG new_prot
, ULONG
*old_prot
)
1943 NTSTATUS status
= STATUS_SUCCESS
;
1946 unsigned int new_vprot
;
1947 SIZE_T size
= *size_ptr
;
1948 LPVOID addr
= *addr_ptr
;
1950 TRACE("%p %p %08lx %08x\n", process
, addr
, size
, new_prot
);
1952 if (process
!= NtCurrentProcess())
1955 apc_result_t result
;
1957 memset( &call
, 0, sizeof(call
) );
1959 call
.virtual_protect
.type
= APC_VIRTUAL_PROTECT
;
1960 call
.virtual_protect
.addr
= wine_server_client_ptr( addr
);
1961 call
.virtual_protect
.size
= size
;
1962 call
.virtual_protect
.prot
= new_prot
;
1963 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
1964 if (status
!= STATUS_SUCCESS
) return status
;
1966 if (result
.virtual_protect
.status
== STATUS_SUCCESS
)
1968 *addr_ptr
= wine_server_get_ptr( result
.virtual_protect
.addr
);
1969 *size_ptr
= result
.virtual_protect
.size
;
1970 if (old_prot
) *old_prot
= result
.virtual_protect
.prot
;
1972 return result
.virtual_protect
.status
;
1975 /* Fix the parameters */
1977 size
= ROUND_SIZE( addr
, size
);
1978 base
= ROUND_ADDR( addr
, page_mask
);
1979 if ((status
= get_vprot_flags( new_prot
, &new_vprot
))) return status
;
1980 new_vprot
|= VPROT_COMMITTED
;
1982 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1984 if (!(view
= VIRTUAL_FindView( base
, size
)))
1986 status
= STATUS_INVALID_PARAMETER
;
1990 /* Make sure all the pages are committed */
1991 if (get_committed_size( view
, base
, &vprot
) >= size
&& (vprot
& VPROT_COMMITTED
))
1993 if (old_prot
) *old_prot
= VIRTUAL_GetWin32Prot( vprot
);
1994 if (!VIRTUAL_SetProt( view
, base
, size
, new_vprot
)) status
= STATUS_ACCESS_DENIED
;
1996 else status
= STATUS_NOT_COMMITTED
;
1998 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2000 if (status
== STATUS_SUCCESS
)
2009 /* retrieve state for a free memory area; callback for wine_mmap_enum_reserved_areas */
2010 static int get_free_mem_state_callback( void *start
, size_t size
, void *arg
)
2012 MEMORY_BASIC_INFORMATION
*info
= arg
;
2013 void *end
= (char *)start
+ size
;
2015 if ((char *)info
->BaseAddress
+ info
->RegionSize
< (char *)start
) return 0;
2017 if (info
->BaseAddress
>= end
)
2019 if (info
->AllocationBase
< end
) info
->AllocationBase
= end
;
2023 if (info
->BaseAddress
>= start
)
2025 /* it's a real free area */
2026 info
->State
= MEM_FREE
;
2027 info
->Protect
= PAGE_NOACCESS
;
2028 info
->AllocationBase
= 0;
2029 info
->AllocationProtect
= 0;
2031 if ((char *)info
->BaseAddress
+ info
->RegionSize
> (char *)end
)
2032 info
->RegionSize
= (char *)end
- (char *)info
->BaseAddress
;
2034 else /* outside of the reserved area, pretend it's allocated */
2036 info
->RegionSize
= (char *)start
- (char *)info
->BaseAddress
;
2037 info
->State
= MEM_RESERVE
;
2038 info
->Protect
= PAGE_NOACCESS
;
2039 info
->AllocationProtect
= PAGE_NOACCESS
;
2040 info
->Type
= MEM_PRIVATE
;
2045 #define UNIMPLEMENTED_INFO_CLASS(c) \
2047 FIXME("(process=%p,addr=%p) Unimplemented information class: " #c "\n", process, addr); \
2048 return STATUS_INVALID_INFO_CLASS
2050 /***********************************************************************
2051 * NtQueryVirtualMemory (NTDLL.@)
2052 * ZwQueryVirtualMemory (NTDLL.@)
2054 NTSTATUS WINAPI
NtQueryVirtualMemory( HANDLE process
, LPCVOID addr
,
2055 MEMORY_INFORMATION_CLASS info_class
, PVOID buffer
,
2056 SIZE_T len
, SIZE_T
*res_len
)
2059 char *base
, *alloc_base
= 0;
2062 MEMORY_BASIC_INFORMATION
*info
= buffer
;
2065 if (info_class
!= MemoryBasicInformation
)
2069 UNIMPLEMENTED_INFO_CLASS(MemoryWorkingSetList
);
2070 UNIMPLEMENTED_INFO_CLASS(MemorySectionName
);
2071 UNIMPLEMENTED_INFO_CLASS(MemoryBasicVlmInformation
);
2074 FIXME("(%p,%p,info_class=%d,%p,%ld,%p) Unknown information class\n",
2075 process
, addr
, info_class
, buffer
, len
, res_len
);
2076 return STATUS_INVALID_INFO_CLASS
;
2080 if (process
!= NtCurrentProcess())
2084 apc_result_t result
;
2086 memset( &call
, 0, sizeof(call
) );
2088 call
.virtual_query
.type
= APC_VIRTUAL_QUERY
;
2089 call
.virtual_query
.addr
= wine_server_client_ptr( addr
);
2090 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
2091 if (status
!= STATUS_SUCCESS
) return status
;
2093 if (result
.virtual_query
.status
== STATUS_SUCCESS
)
2095 info
->BaseAddress
= wine_server_get_ptr( result
.virtual_query
.base
);
2096 info
->AllocationBase
= wine_server_get_ptr( result
.virtual_query
.alloc_base
);
2097 info
->RegionSize
= result
.virtual_query
.size
;
2098 info
->Protect
= result
.virtual_query
.prot
;
2099 info
->AllocationProtect
= result
.virtual_query
.alloc_prot
;
2100 info
->State
= (DWORD
)result
.virtual_query
.state
<< 12;
2101 info
->Type
= (DWORD
)result
.virtual_query
.alloc_type
<< 16;
2102 if (info
->RegionSize
!= result
.virtual_query
.size
) /* truncated */
2103 return STATUS_INVALID_PARAMETER
; /* FIXME */
2104 if (res_len
) *res_len
= sizeof(*info
);
2106 return result
.virtual_query
.status
;
2109 base
= ROUND_ADDR( addr
, page_mask
);
2111 if (is_beyond_limit( base
, 1, working_set_limit
)) return STATUS_WORKING_SET_LIMIT_RANGE
;
2113 /* Find the view containing the address */
2115 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2116 ptr
= list_head( &views_list
);
2121 size
= (char *)working_set_limit
- alloc_base
;
2125 view
= LIST_ENTRY( ptr
, struct file_view
, entry
);
2126 if ((char *)view
->base
> base
)
2128 size
= (char *)view
->base
- alloc_base
;
2132 if ((char *)view
->base
+ view
->size
> base
)
2134 alloc_base
= view
->base
;
2138 alloc_base
= (char *)view
->base
+ view
->size
;
2139 ptr
= list_next( &views_list
, ptr
);
2142 /* Fill the info structure */
2144 info
->AllocationBase
= alloc_base
;
2145 info
->BaseAddress
= base
;
2146 info
->RegionSize
= size
- (base
- alloc_base
);
2150 if (!wine_mmap_enum_reserved_areas( get_free_mem_state_callback
, info
, 0 ))
2152 /* not in a reserved area at all, pretend it's allocated */
2154 info
->State
= MEM_RESERVE
;
2155 info
->Protect
= PAGE_NOACCESS
;
2156 info
->AllocationProtect
= PAGE_NOACCESS
;
2157 info
->Type
= MEM_PRIVATE
;
2159 info
->State
= MEM_FREE
;
2160 info
->Protect
= PAGE_NOACCESS
;
2161 info
->AllocationBase
= 0;
2162 info
->AllocationProtect
= 0;
2170 SIZE_T range_size
= get_committed_size( view
, base
, &vprot
);
2172 info
->State
= (vprot
& VPROT_COMMITTED
) ? MEM_COMMIT
: MEM_RESERVE
;
2173 info
->Protect
= (vprot
& VPROT_COMMITTED
) ? VIRTUAL_GetWin32Prot( vprot
) : 0;
2174 info
->AllocationBase
= alloc_base
;
2175 info
->AllocationProtect
= VIRTUAL_GetWin32Prot( view
->protect
);
2176 if (view
->protect
& VPROT_IMAGE
) info
->Type
= MEM_IMAGE
;
2177 else if (view
->protect
& VPROT_VALLOC
) info
->Type
= MEM_PRIVATE
;
2178 else info
->Type
= MEM_MAPPED
;
2179 for (size
= base
- alloc_base
; size
< base
+ range_size
- alloc_base
; size
+= page_size
)
2180 if ((view
->prot
[size
>> page_shift
] ^ vprot
) & ~VPROT_WRITEWATCH
) break;
2181 info
->RegionSize
= size
- (base
- alloc_base
);
2183 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2185 if (res_len
) *res_len
= sizeof(*info
);
2186 return STATUS_SUCCESS
;
2190 /***********************************************************************
2191 * NtLockVirtualMemory (NTDLL.@)
2192 * ZwLockVirtualMemory (NTDLL.@)
2194 NTSTATUS WINAPI
NtLockVirtualMemory( HANDLE process
, PVOID
*addr
, SIZE_T
*size
, ULONG unknown
)
2196 NTSTATUS status
= STATUS_SUCCESS
;
2198 if (process
!= NtCurrentProcess())
2201 apc_result_t result
;
2203 memset( &call
, 0, sizeof(call
) );
2205 call
.virtual_lock
.type
= APC_VIRTUAL_LOCK
;
2206 call
.virtual_lock
.addr
= wine_server_client_ptr( *addr
);
2207 call
.virtual_lock
.size
= *size
;
2208 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
2209 if (status
!= STATUS_SUCCESS
) return status
;
2211 if (result
.virtual_lock
.status
== STATUS_SUCCESS
)
2213 *addr
= wine_server_get_ptr( result
.virtual_lock
.addr
);
2214 *size
= result
.virtual_lock
.size
;
2216 return result
.virtual_lock
.status
;
2219 *size
= ROUND_SIZE( *addr
, *size
);
2220 *addr
= ROUND_ADDR( *addr
, page_mask
);
2222 if (mlock( *addr
, *size
)) status
= STATUS_ACCESS_DENIED
;
2227 /***********************************************************************
2228 * NtUnlockVirtualMemory (NTDLL.@)
2229 * ZwUnlockVirtualMemory (NTDLL.@)
2231 NTSTATUS WINAPI
NtUnlockVirtualMemory( HANDLE process
, PVOID
*addr
, SIZE_T
*size
, ULONG unknown
)
2233 NTSTATUS status
= STATUS_SUCCESS
;
2235 if (process
!= NtCurrentProcess())
2238 apc_result_t result
;
2240 memset( &call
, 0, sizeof(call
) );
2242 call
.virtual_unlock
.type
= APC_VIRTUAL_UNLOCK
;
2243 call
.virtual_unlock
.addr
= wine_server_client_ptr( *addr
);
2244 call
.virtual_unlock
.size
= *size
;
2245 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
2246 if (status
!= STATUS_SUCCESS
) return status
;
2248 if (result
.virtual_unlock
.status
== STATUS_SUCCESS
)
2250 *addr
= wine_server_get_ptr( result
.virtual_unlock
.addr
);
2251 *size
= result
.virtual_unlock
.size
;
2253 return result
.virtual_unlock
.status
;
2256 *size
= ROUND_SIZE( *addr
, *size
);
2257 *addr
= ROUND_ADDR( *addr
, page_mask
);
2259 if (munlock( *addr
, *size
)) status
= STATUS_ACCESS_DENIED
;
2264 /***********************************************************************
2265 * NtCreateSection (NTDLL.@)
2266 * ZwCreateSection (NTDLL.@)
2268 NTSTATUS WINAPI
NtCreateSection( HANDLE
*handle
, ACCESS_MASK access
, const OBJECT_ATTRIBUTES
*attr
,
2269 const LARGE_INTEGER
*size
, ULONG protect
,
2270 ULONG sec_flags
, HANDLE file
)
2274 DWORD len
= (attr
&& attr
->ObjectName
) ? attr
->ObjectName
->Length
: 0;
2275 struct security_descriptor
*sd
= NULL
;
2276 struct object_attributes objattr
;
2278 /* Check parameters */
2280 if (len
> MAX_PATH
*sizeof(WCHAR
)) return STATUS_NAME_TOO_LONG
;
2282 if ((ret
= get_vprot_flags( protect
, &vprot
))) return ret
;
2284 objattr
.rootdir
= wine_server_obj_handle( attr
? attr
->RootDirectory
: 0 );
2286 objattr
.name_len
= len
;
2289 ret
= NTDLL_create_struct_sd( attr
->SecurityDescriptor
, &sd
, &objattr
.sd_len
);
2290 if (ret
!= STATUS_SUCCESS
) return ret
;
2293 if (!(sec_flags
& SEC_RESERVE
)) vprot
|= VPROT_COMMITTED
;
2294 if (sec_flags
& SEC_NOCACHE
) vprot
|= VPROT_NOCACHE
;
2295 if (sec_flags
& SEC_IMAGE
) vprot
|= VPROT_IMAGE
;
2297 /* Create the server object */
2299 SERVER_START_REQ( create_mapping
)
2301 req
->access
= access
;
2302 req
->attributes
= (attr
) ? attr
->Attributes
: 0;
2303 req
->file_handle
= wine_server_obj_handle( file
);
2304 req
->size
= size
? size
->QuadPart
: 0;
2305 req
->protect
= vprot
;
2306 wine_server_add_data( req
, &objattr
, sizeof(objattr
) );
2307 if (objattr
.sd_len
) wine_server_add_data( req
, sd
, objattr
.sd_len
);
2308 if (len
) wine_server_add_data( req
, attr
->ObjectName
->Buffer
, len
);
2309 ret
= wine_server_call( req
);
2310 *handle
= wine_server_ptr_handle( reply
->handle
);
2314 NTDLL_free_struct_sd( sd
);
2320 /***********************************************************************
2321 * NtOpenSection (NTDLL.@)
2322 * ZwOpenSection (NTDLL.@)
2324 NTSTATUS WINAPI
NtOpenSection( HANDLE
*handle
, ACCESS_MASK access
, const OBJECT_ATTRIBUTES
*attr
)
2327 DWORD len
= attr
->ObjectName
->Length
;
2329 if (len
> MAX_PATH
*sizeof(WCHAR
)) return STATUS_NAME_TOO_LONG
;
2331 SERVER_START_REQ( open_mapping
)
2333 req
->access
= access
;
2334 req
->attributes
= attr
->Attributes
;
2335 req
->rootdir
= wine_server_obj_handle( attr
->RootDirectory
);
2336 wine_server_add_data( req
, attr
->ObjectName
->Buffer
, len
);
2337 if (!(ret
= wine_server_call( req
))) *handle
= wine_server_ptr_handle( reply
->handle
);
2344 /***********************************************************************
2345 * NtMapViewOfSection (NTDLL.@)
2346 * ZwMapViewOfSection (NTDLL.@)
2348 NTSTATUS WINAPI
NtMapViewOfSection( HANDLE handle
, HANDLE process
, PVOID
*addr_ptr
, ULONG zero_bits
,
2349 SIZE_T commit_size
, const LARGE_INTEGER
*offset_ptr
, SIZE_T
*size_ptr
,
2350 SECTION_INHERIT inherit
, ULONG alloc_type
, ULONG protect
)
2353 mem_size_t full_size
;
2355 SIZE_T size
, mask
= get_mask( zero_bits
);
2356 int unix_handle
= -1, needs_close
;
2357 unsigned int map_vprot
, vprot
;
2359 struct file_view
*view
;
2361 HANDLE dup_mapping
, shared_file
;
2362 LARGE_INTEGER offset
;
2365 offset
.QuadPart
= offset_ptr
? offset_ptr
->QuadPart
: 0;
2367 TRACE("handle=%p process=%p addr=%p off=%x%08x size=%lx access=%x\n",
2368 handle
, process
, *addr_ptr
, offset
.u
.HighPart
, offset
.u
.LowPart
, *size_ptr
, protect
);
2370 /* Check parameters */
2372 if ((offset
.u
.LowPart
& mask
) || (*addr_ptr
&& ((UINT_PTR
)*addr_ptr
& mask
)))
2373 return STATUS_INVALID_PARAMETER
;
2380 case PAGE_READWRITE
:
2381 case PAGE_EXECUTE_READWRITE
:
2382 access
= SECTION_MAP_WRITE
;
2385 case PAGE_WRITECOPY
:
2387 case PAGE_EXECUTE_READ
:
2388 case PAGE_EXECUTE_WRITECOPY
:
2389 access
= SECTION_MAP_READ
;
2392 return STATUS_INVALID_PARAMETER
;
2395 if (process
!= NtCurrentProcess())
2398 apc_result_t result
;
2400 memset( &call
, 0, sizeof(call
) );
2402 call
.map_view
.type
= APC_MAP_VIEW
;
2403 call
.map_view
.handle
= wine_server_obj_handle( handle
);
2404 call
.map_view
.addr
= wine_server_client_ptr( *addr_ptr
);
2405 call
.map_view
.size
= *size_ptr
;
2406 call
.map_view
.offset
= offset
.QuadPart
;
2407 call
.map_view
.zero_bits
= zero_bits
;
2408 call
.map_view
.alloc_type
= alloc_type
;
2409 call
.map_view
.prot
= protect
;
2410 res
= NTDLL_queue_process_apc( process
, &call
, &result
);
2411 if (res
!= STATUS_SUCCESS
) return res
;
2413 if ((NTSTATUS
)result
.map_view
.status
>= 0)
2415 *addr_ptr
= wine_server_get_ptr( result
.map_view
.addr
);
2416 *size_ptr
= result
.map_view
.size
;
2418 return result
.map_view
.status
;
2421 SERVER_START_REQ( get_mapping_info
)
2423 req
->handle
= wine_server_obj_handle( handle
);
2424 req
->access
= access
;
2425 res
= wine_server_call( req
);
2426 map_vprot
= reply
->protect
;
2427 base
= wine_server_get_ptr( reply
->base
);
2428 full_size
= reply
->size
;
2429 header_size
= reply
->header_size
;
2430 dup_mapping
= wine_server_ptr_handle( reply
->mapping
);
2431 shared_file
= wine_server_ptr_handle( reply
->shared_file
);
2432 if ((ULONG_PTR
)base
!= reply
->base
) base
= NULL
;
2435 if (res
) return res
;
2437 if ((res
= server_get_unix_fd( handle
, 0, &unix_handle
, &needs_close
, NULL
, NULL
))) goto done
;
2439 if (map_vprot
& VPROT_IMAGE
)
2442 if (size
!= full_size
) /* truncated */
2444 WARN( "Modules larger than 4Gb (%s) not supported\n", wine_dbgstr_longlong(full_size
) );
2445 res
= STATUS_INVALID_PARAMETER
;
2450 int shared_fd
, shared_needs_close
;
2452 if ((res
= server_get_unix_fd( shared_file
, FILE_READ_DATA
|FILE_WRITE_DATA
,
2453 &shared_fd
, &shared_needs_close
, NULL
, NULL
))) goto done
;
2454 res
= map_image( handle
, unix_handle
, base
, size
, mask
, header_size
,
2455 shared_fd
, dup_mapping
, addr_ptr
);
2456 if (shared_needs_close
) close( shared_fd
);
2457 NtClose( shared_file
);
2461 res
= map_image( handle
, unix_handle
, base
, size
, mask
, header_size
,
2462 -1, dup_mapping
, addr_ptr
);
2464 if (needs_close
) close( unix_handle
);
2465 if (res
>= 0) *size_ptr
= size
;
2469 res
= STATUS_INVALID_PARAMETER
;
2470 if (offset
.QuadPart
>= full_size
) goto done
;
2473 if (*size_ptr
> full_size
- offset
.QuadPart
) goto done
;
2474 size
= ROUND_SIZE( offset
.u
.LowPart
, *size_ptr
);
2475 if (size
< *size_ptr
) goto done
; /* wrap-around */
2479 size
= full_size
- offset
.QuadPart
;
2480 if (size
!= full_size
- offset
.QuadPart
) /* truncated */
2482 WARN( "Files larger than 4Gb (%s) not supported on this platform\n",
2483 wine_dbgstr_longlong(full_size
) );
2488 /* Reserve a properly aligned area */
2490 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2492 get_vprot_flags( protect
, &vprot
);
2493 vprot
|= (map_vprot
& VPROT_COMMITTED
);
2494 res
= map_view( &view
, *addr_ptr
, size
, mask
, FALSE
, vprot
);
2497 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2503 TRACE("handle=%p size=%lx offset=%x%08x\n",
2504 handle
, size
, offset
.u
.HighPart
, offset
.u
.LowPart
);
2506 res
= map_file_into_view( view
, unix_handle
, 0, size
, offset
.QuadPart
, vprot
, !dup_mapping
);
2507 if (res
== STATUS_SUCCESS
)
2509 *addr_ptr
= view
->base
;
2511 view
->mapping
= dup_mapping
;
2512 dup_mapping
= 0; /* don't close it */
2516 ERR( "map_file_into_view %p %lx %x%08x failed\n",
2517 view
->base
, size
, offset
.u
.HighPart
, offset
.u
.LowPart
);
2518 delete_view( view
);
2521 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2524 if (dup_mapping
) NtClose( dup_mapping
);
2525 if (needs_close
) close( unix_handle
);
2530 /***********************************************************************
2531 * NtUnmapViewOfSection (NTDLL.@)
2532 * ZwUnmapViewOfSection (NTDLL.@)
2534 NTSTATUS WINAPI
NtUnmapViewOfSection( HANDLE process
, PVOID addr
)
2537 NTSTATUS status
= STATUS_NOT_MAPPED_VIEW
;
2539 void *base
= ROUND_ADDR( addr
, page_mask
);
2541 if (process
!= NtCurrentProcess())
2544 apc_result_t result
;
2546 memset( &call
, 0, sizeof(call
) );
2548 call
.unmap_view
.type
= APC_UNMAP_VIEW
;
2549 call
.unmap_view
.addr
= wine_server_client_ptr( addr
);
2550 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
2551 if (status
== STATUS_SUCCESS
) status
= result
.unmap_view
.status
;
2555 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2556 if ((view
= VIRTUAL_FindView( base
, 0 )) && (base
== view
->base
) && !(view
->protect
& VPROT_VALLOC
))
2558 delete_view( view
);
2559 status
= STATUS_SUCCESS
;
2561 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2566 /***********************************************************************
2567 * NtFlushVirtualMemory (NTDLL.@)
2568 * ZwFlushVirtualMemory (NTDLL.@)
2570 NTSTATUS WINAPI
NtFlushVirtualMemory( HANDLE process
, LPCVOID
*addr_ptr
,
2571 SIZE_T
*size_ptr
, ULONG unknown
)
2574 NTSTATUS status
= STATUS_SUCCESS
;
2576 void *addr
= ROUND_ADDR( *addr_ptr
, page_mask
);
2578 if (process
!= NtCurrentProcess())
2581 apc_result_t result
;
2583 memset( &call
, 0, sizeof(call
) );
2585 call
.virtual_flush
.type
= APC_VIRTUAL_FLUSH
;
2586 call
.virtual_flush
.addr
= wine_server_client_ptr( addr
);
2587 call
.virtual_flush
.size
= *size_ptr
;
2588 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
2589 if (status
!= STATUS_SUCCESS
) return status
;
2591 if (result
.virtual_flush
.status
== STATUS_SUCCESS
)
2593 *addr_ptr
= wine_server_get_ptr( result
.virtual_flush
.addr
);
2594 *size_ptr
= result
.virtual_flush
.size
;
2596 return result
.virtual_flush
.status
;
2599 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2600 if (!(view
= VIRTUAL_FindView( addr
, *size_ptr
))) status
= STATUS_INVALID_PARAMETER
;
2603 if (!*size_ptr
) *size_ptr
= view
->size
;
2605 if (msync( addr
, *size_ptr
, MS_SYNC
)) status
= STATUS_NOT_MAPPED_DATA
;
2607 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2612 /***********************************************************************
2613 * NtGetWriteWatch (NTDLL.@)
2614 * ZwGetWriteWatch (NTDLL.@)
2616 NTSTATUS WINAPI
NtGetWriteWatch( HANDLE process
, ULONG flags
, PVOID base
, SIZE_T size
, PVOID
*addresses
,
2617 ULONG_PTR
*count
, ULONG
*granularity
)
2619 struct file_view
*view
;
2620 NTSTATUS status
= STATUS_SUCCESS
;
2623 size
= ROUND_SIZE( base
, size
);
2624 base
= ROUND_ADDR( base
, page_mask
);
2626 if (!count
|| !granularity
) return STATUS_ACCESS_VIOLATION
;
2627 if (!*count
|| !size
) return STATUS_INVALID_PARAMETER
;
2628 if (flags
& ~WRITE_WATCH_FLAG_RESET
) return STATUS_INVALID_PARAMETER
;
2630 if (!addresses
) return STATUS_ACCESS_VIOLATION
;
2632 TRACE( "%p %x %p-%p %p %lu\n", process
, flags
, base
, (char *)base
+ size
,
2633 addresses
, *count
);
2635 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2637 if ((view
= VIRTUAL_FindView( base
, size
)) && (view
->protect
& VPROT_WRITEWATCH
))
2641 char *end
= addr
+ size
;
2643 while (pos
< *count
&& addr
< end
)
2645 BYTE prot
= view
->prot
[(addr
- (char *)view
->base
) >> page_shift
];
2646 if (!(prot
& VPROT_WRITEWATCH
)) addresses
[pos
++] = addr
;
2649 if (flags
& WRITE_WATCH_FLAG_RESET
) reset_write_watches( view
, base
, addr
- (char *)base
);
2651 *granularity
= page_size
;
2653 else status
= STATUS_INVALID_PARAMETER
;
2655 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2660 /***********************************************************************
2661 * NtResetWriteWatch (NTDLL.@)
2662 * ZwResetWriteWatch (NTDLL.@)
2664 NTSTATUS WINAPI
NtResetWriteWatch( HANDLE process
, PVOID base
, SIZE_T size
)
2666 struct file_view
*view
;
2667 NTSTATUS status
= STATUS_SUCCESS
;
2670 size
= ROUND_SIZE( base
, size
);
2671 base
= ROUND_ADDR( base
, page_mask
);
2673 TRACE( "%p %p-%p\n", process
, base
, (char *)base
+ size
);
2675 if (!size
) return STATUS_INVALID_PARAMETER
;
2677 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2679 if ((view
= VIRTUAL_FindView( base
, size
)) && (view
->protect
& VPROT_WRITEWATCH
))
2680 reset_write_watches( view
, base
, size
);
2682 status
= STATUS_INVALID_PARAMETER
;
2684 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2689 /***********************************************************************
2690 * NtReadVirtualMemory (NTDLL.@)
2691 * ZwReadVirtualMemory (NTDLL.@)
2693 NTSTATUS WINAPI
NtReadVirtualMemory( HANDLE process
, const void *addr
, void *buffer
,
2694 SIZE_T size
, SIZE_T
*bytes_read
)
2698 if (virtual_check_buffer_for_write( buffer
, size
))
2700 SERVER_START_REQ( read_process_memory
)
2702 req
->handle
= wine_server_obj_handle( process
);
2703 req
->addr
= wine_server_client_ptr( addr
);
2704 wine_server_set_reply( req
, buffer
, size
);
2705 if ((status
= wine_server_call( req
))) size
= 0;
2711 status
= STATUS_ACCESS_VIOLATION
;
2714 if (bytes_read
) *bytes_read
= size
;
2719 /***********************************************************************
2720 * NtWriteVirtualMemory (NTDLL.@)
2721 * ZwWriteVirtualMemory (NTDLL.@)
2723 NTSTATUS WINAPI
NtWriteVirtualMemory( HANDLE process
, void *addr
, const void *buffer
,
2724 SIZE_T size
, SIZE_T
*bytes_written
)
2728 if (virtual_check_buffer_for_read( buffer
, size
))
2730 SERVER_START_REQ( write_process_memory
)
2732 req
->handle
= wine_server_obj_handle( process
);
2733 req
->addr
= wine_server_client_ptr( addr
);
2734 wine_server_add_data( req
, buffer
, size
);
2735 if ((status
= wine_server_call( req
))) size
= 0;
2741 status
= STATUS_PARTIAL_COPY
;
2744 if (bytes_written
) *bytes_written
= size
;
2749 /***********************************************************************
2750 * NtAreMappedFilesTheSame (NTDLL.@)
2751 * ZwAreMappedFilesTheSame (NTDLL.@)
2753 NTSTATUS WINAPI
NtAreMappedFilesTheSame(PVOID addr1
, PVOID addr2
)
2755 TRACE("%p %p\n", addr1
, addr2
);
2757 return STATUS_NOT_SAME_DEVICE
;