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"
34 #include <sys/types.h>
35 #ifdef HAVE_SYS_STAT_H
36 # include <sys/stat.h>
38 #ifdef HAVE_SYS_MMAN_H
39 # include <sys/mman.h>
41 #ifdef HAVE_VALGRIND_VALGRIND_H
42 # include <valgrind/valgrind.h>
45 #define NONAMELESSUNION
46 #define NONAMELESSSTRUCT
48 #define WIN32_NO_STATUS
51 #include "wine/library.h"
52 #include "wine/server.h"
53 #include "wine/exception.h"
54 #include "wine/list.h"
55 #include "wine/debug.h"
56 #include "ntdll_misc.h"
58 WINE_DEFAULT_DEBUG_CHANNEL(virtual);
59 WINE_DECLARE_DEBUG_CHANNEL(module
);
66 #define MAP_NORESERVE 0
72 struct list entry
; /* Entry in global view list */
73 void *base
; /* Base address */
74 size_t size
; /* Size in bytes */
75 HANDLE mapping
; /* Handle to the file mapping */
76 unsigned int map_protect
; /* Mapping protection */
77 unsigned int protect
; /* Protection for all pages at allocation time */
78 BYTE prot
[1]; /* Protection byte for each page */
82 /* Conversion from VPROT_* to Win32 flags */
83 static const BYTE VIRTUAL_Win32Flags
[16] =
85 PAGE_NOACCESS
, /* 0 */
86 PAGE_READONLY
, /* READ */
87 PAGE_READWRITE
, /* WRITE */
88 PAGE_READWRITE
, /* READ | WRITE */
89 PAGE_EXECUTE
, /* EXEC */
90 PAGE_EXECUTE_READ
, /* READ | EXEC */
91 PAGE_EXECUTE_READWRITE
, /* WRITE | EXEC */
92 PAGE_EXECUTE_READWRITE
, /* READ | WRITE | EXEC */
93 PAGE_WRITECOPY
, /* WRITECOPY */
94 PAGE_WRITECOPY
, /* READ | WRITECOPY */
95 PAGE_WRITECOPY
, /* WRITE | WRITECOPY */
96 PAGE_WRITECOPY
, /* READ | WRITE | WRITECOPY */
97 PAGE_EXECUTE_WRITECOPY
, /* EXEC | WRITECOPY */
98 PAGE_EXECUTE_WRITECOPY
, /* READ | EXEC | WRITECOPY */
99 PAGE_EXECUTE_WRITECOPY
, /* WRITE | EXEC | WRITECOPY */
100 PAGE_EXECUTE_WRITECOPY
/* READ | WRITE | EXEC | WRITECOPY */
103 static struct list views_list
= LIST_INIT(views_list
);
105 static RTL_CRITICAL_SECTION csVirtual
;
106 static RTL_CRITICAL_SECTION_DEBUG critsect_debug
=
109 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
110 0, 0, { (DWORD_PTR
)(__FILE__
": csVirtual") }
112 static RTL_CRITICAL_SECTION csVirtual
= { &critsect_debug
, -1, 0, 0, 0, 0 };
115 /* These are always the same on an i386, and it will be faster this way */
116 # define page_mask 0xfff
117 # define page_shift 12
118 # define page_size 0x1000
119 /* Note: these are Windows limits, you cannot change them. */
120 static void *address_space_limit
= (void *)0xc0000000; /* top of the total available address space */
121 static void *user_space_limit
= (void *)0x7fff0000; /* top of the user address space */
122 static void *working_set_limit
= (void *)0x7fff0000; /* top of the current working set */
123 static void *address_space_start
= (void *)0x110000; /* keep DOS area clear */
124 #elif defined(__x86_64__)
125 # define page_mask 0xfff
126 # define page_shift 12
127 # define page_size 0x1000
128 static void *address_space_limit
= (void *)0x7fffffff0000;
129 static void *user_space_limit
= (void *)0x7fffffff0000;
130 static void *working_set_limit
= (void *)0x7fffffff0000;
131 static void *address_space_start
= (void *)0x10000;
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 static void *address_space_start
= (void *)0x10000;
140 #endif /* __i386__ */
141 static const int is_win64
= (sizeof(void *) > sizeof(int));
143 #define ROUND_ADDR(addr,mask) \
144 ((void *)((UINT_PTR)(addr) & ~(UINT_PTR)(mask)))
146 #define ROUND_SIZE(addr,size) \
147 (((SIZE_T)(size) + ((UINT_PTR)(addr) & page_mask) + page_mask) & ~page_mask)
149 #define VIRTUAL_DEBUG_DUMP_VIEW(view) \
150 do { if (TRACE_ON(virtual)) VIRTUAL_DumpView(view); } while (0)
152 #define VIRTUAL_HEAP_SIZE (4*1024*1024)
154 static HANDLE virtual_heap
;
155 static void *preload_reserve_start
;
156 static void *preload_reserve_end
;
157 static int use_locks
;
158 static int force_exec_prot
; /* whether to force PROT_EXEC on all PROT_READ mmaps */
161 /***********************************************************************
164 static const char *VIRTUAL_GetProtStr( BYTE prot
)
166 static char buffer
[6];
167 buffer
[0] = (prot
& VPROT_COMMITTED
) ? 'c' : '-';
168 buffer
[1] = (prot
& VPROT_GUARD
) ? 'g' : ((prot
& VPROT_WRITEWATCH
) ? 'H' : '-');
169 buffer
[2] = (prot
& VPROT_READ
) ? 'r' : '-';
170 buffer
[3] = (prot
& VPROT_WRITECOPY
) ? 'W' : ((prot
& VPROT_WRITE
) ? 'w' : '-');
171 buffer
[4] = (prot
& VPROT_EXEC
) ? 'x' : '-';
177 /***********************************************************************
178 * VIRTUAL_GetUnixProt
180 * Convert page protections to protection for mmap/mprotect.
182 static int VIRTUAL_GetUnixProt( BYTE vprot
)
185 if ((vprot
& VPROT_COMMITTED
) && !(vprot
& VPROT_GUARD
))
187 if (vprot
& VPROT_READ
) prot
|= PROT_READ
;
188 if (vprot
& VPROT_WRITE
) prot
|= PROT_WRITE
| PROT_READ
;
189 if (vprot
& VPROT_WRITECOPY
) prot
|= PROT_WRITE
| PROT_READ
;
190 if (vprot
& VPROT_EXEC
) prot
|= PROT_EXEC
| PROT_READ
;
191 if (vprot
& VPROT_WRITEWATCH
) prot
&= ~PROT_WRITE
;
193 if (!prot
) prot
= PROT_NONE
;
198 /***********************************************************************
201 static void VIRTUAL_DumpView( struct file_view
*view
)
204 char *addr
= view
->base
;
205 BYTE prot
= view
->prot
[0];
207 TRACE( "View: %p - %p", addr
, addr
+ view
->size
- 1 );
208 if (view
->protect
& VPROT_SYSTEM
)
209 TRACE( " (system)\n" );
210 else if (view
->protect
& VPROT_VALLOC
)
211 TRACE( " (valloc)\n" );
212 else if (view
->mapping
)
213 TRACE( " %p\n", view
->mapping
);
215 TRACE( " (anonymous)\n");
217 for (count
= i
= 1; i
< view
->size
>> page_shift
; i
++, count
++)
219 if (view
->prot
[i
] == prot
) continue;
220 TRACE( " %p - %p %s\n",
221 addr
, addr
+ (count
<< page_shift
) - 1, VIRTUAL_GetProtStr(prot
) );
222 addr
+= (count
<< page_shift
);
223 prot
= view
->prot
[i
];
227 TRACE( " %p - %p %s\n",
228 addr
, addr
+ (count
<< page_shift
) - 1, VIRTUAL_GetProtStr(prot
) );
232 /***********************************************************************
236 static void VIRTUAL_Dump(void)
239 struct file_view
*view
;
241 TRACE( "Dump of all virtual memory views:\n" );
242 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
243 LIST_FOR_EACH_ENTRY( view
, &views_list
, struct file_view
, entry
)
245 VIRTUAL_DumpView( view
);
247 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
252 /***********************************************************************
255 * Find the view containing a given address. The csVirtual section must be held by caller.
264 static struct file_view
*VIRTUAL_FindView( const void *addr
, size_t size
)
266 struct file_view
*view
;
268 LIST_FOR_EACH_ENTRY( view
, &views_list
, struct file_view
, entry
)
270 if (view
->base
> addr
) break; /* no matching view */
271 if ((const char *)view
->base
+ view
->size
<= (const char *)addr
) continue;
272 if ((const char *)view
->base
+ view
->size
< (const char *)addr
+ size
) break; /* size too large */
273 if ((const char *)addr
+ size
< (const char *)addr
) break; /* overflow */
280 /***********************************************************************
283 static inline UINT_PTR
get_mask( ULONG zero_bits
)
285 if (!zero_bits
) return 0xffff; /* allocations are aligned to 64K by default */
286 if (zero_bits
< page_shift
) zero_bits
= page_shift
;
287 return (1 << zero_bits
) - 1;
291 /***********************************************************************
294 * Find the first view overlapping at least part of the specified range.
295 * The csVirtual section must be held by caller.
297 static struct file_view
*find_view_range( const void *addr
, size_t size
)
299 struct file_view
*view
;
301 LIST_FOR_EACH_ENTRY( view
, &views_list
, struct file_view
, entry
)
303 if ((const char *)view
->base
>= (const char *)addr
+ size
) break;
304 if ((const char *)view
->base
+ view
->size
> (const char *)addr
) return view
;
310 /***********************************************************************
313 * Find a free area between views inside the specified range.
314 * The csVirtual section must be held by caller.
316 static void *find_free_area( void *base
, void *end
, size_t size
, size_t mask
, int top_down
)
323 start
= ROUND_ADDR( (char *)end
- size
, mask
);
324 if (start
>= end
|| start
< base
) return NULL
;
326 for (ptr
= views_list
.prev
; ptr
!= &views_list
; ptr
= ptr
->prev
)
328 struct file_view
*view
= LIST_ENTRY( ptr
, struct file_view
, entry
);
330 if ((char *)view
->base
+ view
->size
<= (char *)start
) break;
331 if ((char *)view
->base
>= (char *)start
+ size
) continue;
332 start
= ROUND_ADDR( (char *)view
->base
- size
, mask
);
333 /* stop if remaining space is not large enough */
334 if (!start
|| start
>= end
|| start
< base
) return NULL
;
339 start
= ROUND_ADDR( (char *)base
+ mask
, mask
);
340 if (start
>= end
|| (char *)end
- (char *)start
< size
) return NULL
;
342 for (ptr
= views_list
.next
; ptr
!= &views_list
; ptr
= ptr
->next
)
344 struct file_view
*view
= LIST_ENTRY( ptr
, struct file_view
, entry
);
346 if ((char *)view
->base
>= (char *)start
+ size
) break;
347 if ((char *)view
->base
+ view
->size
<= (char *)start
) continue;
348 start
= ROUND_ADDR( (char *)view
->base
+ view
->size
+ mask
, mask
);
349 /* stop if remaining space is not large enough */
350 if (!start
|| start
>= end
|| (char *)end
- (char *)start
< size
) return NULL
;
357 /***********************************************************************
360 * Add a reserved area to the list maintained by libwine.
361 * The csVirtual section must be held by caller.
363 static void add_reserved_area( void *addr
, size_t size
)
365 TRACE( "adding %p-%p\n", addr
, (char *)addr
+ size
);
367 if (addr
< user_space_limit
)
369 /* unmap the part of the area that is below the limit */
370 assert( (char *)addr
+ size
> (char *)user_space_limit
);
371 munmap( addr
, (char *)user_space_limit
- (char *)addr
);
372 size
-= (char *)user_space_limit
- (char *)addr
;
373 addr
= user_space_limit
;
375 /* blow away existing mappings */
376 wine_anon_mmap( addr
, size
, PROT_NONE
, MAP_NORESERVE
| MAP_FIXED
);
377 wine_mmap_add_reserved_area( addr
, size
);
381 /***********************************************************************
382 * remove_reserved_area
384 * Remove a reserved area from the list maintained by libwine.
385 * The csVirtual section must be held by caller.
387 static void remove_reserved_area( void *addr
, size_t size
)
389 struct file_view
*view
;
391 TRACE( "removing %p-%p\n", addr
, (char *)addr
+ size
);
392 wine_mmap_remove_reserved_area( addr
, size
, 0 );
394 /* unmap areas not covered by an existing view */
395 LIST_FOR_EACH_ENTRY( view
, &views_list
, struct file_view
, entry
)
397 if ((char *)view
->base
>= (char *)addr
+ size
)
399 munmap( addr
, size
);
402 if ((char *)view
->base
+ view
->size
<= (char *)addr
) continue;
403 if (view
->base
> addr
) munmap( addr
, (char *)view
->base
- (char *)addr
);
404 if ((char *)view
->base
+ view
->size
> (char *)addr
+ size
) break;
405 size
= (char *)addr
+ size
- ((char *)view
->base
+ view
->size
);
406 addr
= (char *)view
->base
+ view
->size
;
411 /***********************************************************************
414 * Check if an address range goes beyond a given limit.
416 static inline int is_beyond_limit( const void *addr
, size_t size
, const void *limit
)
418 return (addr
>= limit
|| (const char *)addr
+ size
> (const char *)limit
);
422 /***********************************************************************
425 * Unmap an area, or simply replace it by an empty mapping if it is
426 * in a reserved area. The csVirtual section must be held by caller.
428 static inline void unmap_area( void *addr
, size_t size
)
430 if (wine_mmap_is_in_reserved_area( addr
, size
))
431 wine_anon_mmap( addr
, size
, PROT_NONE
, MAP_NORESERVE
| MAP_FIXED
);
432 else if (is_beyond_limit( addr
, size
, user_space_limit
))
433 add_reserved_area( addr
, size
);
435 munmap( addr
, size
);
439 /***********************************************************************
442 * Deletes a view. The csVirtual section must be held by caller.
444 static void delete_view( struct file_view
*view
) /* [in] View */
446 if (!(view
->protect
& VPROT_SYSTEM
)) unmap_area( view
->base
, view
->size
);
447 list_remove( &view
->entry
);
448 if (view
->mapping
) close_handle( view
->mapping
);
449 RtlFreeHeap( virtual_heap
, 0, view
);
453 /***********************************************************************
456 * Create a view. The csVirtual section must be held by caller.
458 static NTSTATUS
create_view( struct file_view
**view_ret
, void *base
, size_t size
, unsigned int vprot
)
460 struct file_view
*view
;
462 int unix_prot
= VIRTUAL_GetUnixProt( vprot
);
464 assert( !((UINT_PTR
)base
& page_mask
) );
465 assert( !(size
& page_mask
) );
467 /* Create the view structure */
469 if (!(view
= RtlAllocateHeap( virtual_heap
, 0, sizeof(*view
) + (size
>> page_shift
) - 1 )))
471 FIXME( "out of memory in virtual heap for %p-%p\n", base
, (char *)base
+ size
);
472 return STATUS_NO_MEMORY
;
478 view
->map_protect
= 0;
479 view
->protect
= vprot
;
480 memset( view
->prot
, vprot
, size
>> page_shift
);
482 /* Insert it in the linked list */
484 LIST_FOR_EACH( ptr
, &views_list
)
486 struct file_view
*next
= LIST_ENTRY( ptr
, struct file_view
, entry
);
487 if (next
->base
> base
) break;
489 list_add_before( ptr
, &view
->entry
);
491 /* Check for overlapping views. This can happen if the previous view
492 * was a system view that got unmapped behind our back. In that case
493 * we recover by simply deleting it. */
495 if ((ptr
= list_prev( &views_list
, &view
->entry
)) != NULL
)
497 struct file_view
*prev
= LIST_ENTRY( ptr
, struct file_view
, entry
);
498 if ((char *)prev
->base
+ prev
->size
> (char *)base
)
500 TRACE( "overlapping prev view %p-%p for %p-%p\n",
501 prev
->base
, (char *)prev
->base
+ prev
->size
,
502 base
, (char *)base
+ view
->size
);
503 assert( prev
->protect
& VPROT_SYSTEM
);
507 if ((ptr
= list_next( &views_list
, &view
->entry
)) != NULL
)
509 struct file_view
*next
= LIST_ENTRY( ptr
, struct file_view
, entry
);
510 if ((char *)base
+ view
->size
> (char *)next
->base
)
512 TRACE( "overlapping next view %p-%p for %p-%p\n",
513 next
->base
, (char *)next
->base
+ next
->size
,
514 base
, (char *)base
+ view
->size
);
515 assert( next
->protect
& VPROT_SYSTEM
);
521 VIRTUAL_DEBUG_DUMP_VIEW( view
);
523 if (force_exec_prot
&& !(vprot
& VPROT_NOEXEC
) && (unix_prot
& PROT_READ
) && !(unix_prot
& PROT_EXEC
))
525 TRACE( "forcing exec permission on %p-%p\n", base
, (char *)base
+ size
- 1 );
526 mprotect( base
, size
, unix_prot
| PROT_EXEC
);
528 return STATUS_SUCCESS
;
532 /***********************************************************************
533 * VIRTUAL_GetWin32Prot
535 * Convert page protections to Win32 flags.
537 static DWORD
VIRTUAL_GetWin32Prot( BYTE vprot
)
539 DWORD ret
= VIRTUAL_Win32Flags
[vprot
& 0x0f];
540 if (vprot
& VPROT_NOCACHE
) ret
|= PAGE_NOCACHE
;
541 if (vprot
& VPROT_GUARD
) ret
|= PAGE_GUARD
;
546 /***********************************************************************
549 * Build page protections from Win32 flags.
552 * protect [I] Win32 protection flags
555 * Value of page protection flags
557 static NTSTATUS
get_vprot_flags( DWORD protect
, unsigned int *vprot
, BOOL image
)
559 switch(protect
& 0xff)
566 *vprot
= VPROT_READ
| VPROT_WRITECOPY
;
568 *vprot
= VPROT_READ
| VPROT_WRITE
;
571 *vprot
= VPROT_READ
| VPROT_WRITECOPY
;
576 case PAGE_EXECUTE_READ
:
577 *vprot
= VPROT_EXEC
| VPROT_READ
;
579 case PAGE_EXECUTE_READWRITE
:
581 *vprot
= VPROT_EXEC
| VPROT_READ
| VPROT_WRITECOPY
;
583 *vprot
= VPROT_EXEC
| VPROT_READ
| VPROT_WRITE
;
585 case PAGE_EXECUTE_WRITECOPY
:
586 *vprot
= VPROT_EXEC
| VPROT_READ
| VPROT_WRITECOPY
;
592 return STATUS_INVALID_PAGE_PROTECTION
;
594 if (protect
& PAGE_GUARD
) *vprot
|= VPROT_GUARD
;
595 if (protect
& PAGE_NOCACHE
) *vprot
|= VPROT_NOCACHE
;
596 return STATUS_SUCCESS
;
600 /***********************************************************************
603 * Change the protection of a range of pages.
609 static BOOL
VIRTUAL_SetProt( struct file_view
*view
, /* [in] Pointer to view */
610 void *base
, /* [in] Starting address */
611 size_t size
, /* [in] Size in bytes */
612 BYTE vprot
) /* [in] Protections to use */
614 int unix_prot
= VIRTUAL_GetUnixProt(vprot
);
615 BYTE
*p
= view
->prot
+ (((char *)base
- (char *)view
->base
) >> page_shift
);
618 base
, (char *)base
+ size
- 1, VIRTUAL_GetProtStr( vprot
) );
620 if (view
->protect
& VPROT_WRITEWATCH
)
622 /* each page may need different protections depending on write watch flag */
627 p
[0] = vprot
| (p
[0] & VPROT_WRITEWATCH
);
628 unix_prot
= VIRTUAL_GetUnixProt( p
[0] );
629 for (count
= i
= 1; i
< size
>> page_shift
; i
++, count
++)
631 p
[i
] = vprot
| (p
[i
] & VPROT_WRITEWATCH
);
632 prot
= VIRTUAL_GetUnixProt( p
[i
] );
633 if (prot
== unix_prot
) continue;
634 mprotect( addr
, count
<< page_shift
, unix_prot
);
635 addr
+= count
<< page_shift
;
639 if (count
) mprotect( addr
, count
<< page_shift
, unix_prot
);
640 VIRTUAL_DEBUG_DUMP_VIEW( view
);
644 /* if setting stack guard pages, store the permissions first, as the guard may be
645 * triggered at any point after mprotect and change the permissions again */
646 if ((vprot
& VPROT_GUARD
) &&
647 (base
>= NtCurrentTeb()->DeallocationStack
) &&
648 (base
< NtCurrentTeb()->Tib
.StackBase
))
650 memset( p
, vprot
, size
>> page_shift
);
651 mprotect( base
, size
, unix_prot
);
652 VIRTUAL_DEBUG_DUMP_VIEW( view
);
656 if (force_exec_prot
&& !(view
->protect
& VPROT_NOEXEC
) &&
657 (unix_prot
& PROT_READ
) && !(unix_prot
& PROT_EXEC
))
659 TRACE( "forcing exec permission on %p-%p\n", base
, (char *)base
+ size
- 1 );
660 if (!mprotect( base
, size
, unix_prot
| PROT_EXEC
)) goto done
;
661 /* exec + write may legitimately fail, in that case fall back to write only */
662 if (!(unix_prot
& PROT_WRITE
)) return FALSE
;
665 if (mprotect( base
, size
, unix_prot
)) return FALSE
; /* FIXME: last error */
668 memset( p
, vprot
, size
>> page_shift
);
669 VIRTUAL_DEBUG_DUMP_VIEW( view
);
674 /***********************************************************************
675 * reset_write_watches
677 * Reset write watches in a memory range.
679 static void reset_write_watches( struct file_view
*view
, void *base
, SIZE_T size
)
684 BYTE
*p
= view
->prot
+ ((addr
- (char *)view
->base
) >> page_shift
);
686 p
[0] |= VPROT_WRITEWATCH
;
687 unix_prot
= VIRTUAL_GetUnixProt( p
[0] );
688 for (count
= i
= 1; i
< size
>> page_shift
; i
++, count
++)
690 p
[i
] |= VPROT_WRITEWATCH
;
691 prot
= VIRTUAL_GetUnixProt( p
[i
] );
692 if (prot
== unix_prot
) continue;
693 mprotect( addr
, count
<< page_shift
, unix_prot
);
694 addr
+= count
<< page_shift
;
698 if (count
) mprotect( addr
, count
<< page_shift
, unix_prot
);
702 /***********************************************************************
705 * Release the extra memory while keeping the range starting on the granularity boundary.
707 static inline void *unmap_extra_space( void *ptr
, size_t total_size
, size_t wanted_size
, size_t mask
)
709 if ((ULONG_PTR
)ptr
& mask
)
711 size_t extra
= mask
+ 1 - ((ULONG_PTR
)ptr
& mask
);
712 munmap( ptr
, extra
);
713 ptr
= (char *)ptr
+ extra
;
716 if (total_size
> wanted_size
)
717 munmap( (char *)ptr
+ wanted_size
, total_size
- wanted_size
);
731 /***********************************************************************
732 * alloc_reserved_area_callback
734 * Try to map some space inside a reserved area. Callback for wine_mmap_enum_reserved_areas.
736 static int alloc_reserved_area_callback( void *start
, size_t size
, void *arg
)
738 struct alloc_area
*alloc
= arg
;
739 void *end
= (char *)start
+ size
;
741 if (start
< address_space_start
) start
= address_space_start
;
742 if (is_beyond_limit( start
, size
, alloc
->limit
)) end
= alloc
->limit
;
743 if (start
>= end
) return 0;
745 /* make sure we don't touch the preloader reserved range */
746 if (preload_reserve_end
>= start
)
748 if (preload_reserve_end
>= end
)
750 if (preload_reserve_start
<= start
) return 0; /* no space in that area */
751 if (preload_reserve_start
< end
) end
= preload_reserve_start
;
753 else if (preload_reserve_start
<= start
) start
= preload_reserve_end
;
756 /* range is split in two by the preloader reservation, try first part */
757 if ((alloc
->result
= find_free_area( start
, preload_reserve_start
, alloc
->size
,
758 alloc
->mask
, alloc
->top_down
)))
760 /* then fall through to try second part */
761 start
= preload_reserve_end
;
764 if ((alloc
->result
= find_free_area( start
, end
, alloc
->size
, alloc
->mask
, alloc
->top_down
)))
771 /***********************************************************************
774 * Create a view and mmap the corresponding memory area.
775 * The csVirtual section must be held by caller.
777 static NTSTATUS
map_view( struct file_view
**view_ret
, void *base
, size_t size
, size_t mask
,
778 int top_down
, unsigned int vprot
)
785 if (is_beyond_limit( base
, size
, address_space_limit
))
786 return STATUS_WORKING_SET_LIMIT_RANGE
;
788 switch (wine_mmap_is_in_reserved_area( base
, size
))
790 case -1: /* partially in a reserved area */
791 return STATUS_CONFLICTING_ADDRESSES
;
793 case 0: /* not in a reserved area, do a normal allocation */
794 if ((ptr
= wine_anon_mmap( base
, size
, VIRTUAL_GetUnixProt(vprot
), 0 )) == (void *)-1)
796 if (errno
== ENOMEM
) return STATUS_NO_MEMORY
;
797 return STATUS_INVALID_PARAMETER
;
801 /* We couldn't get the address we wanted */
802 if (is_beyond_limit( ptr
, size
, user_space_limit
)) add_reserved_area( ptr
, size
);
803 else munmap( ptr
, size
);
804 return STATUS_CONFLICTING_ADDRESSES
;
809 case 1: /* in a reserved area, make sure the address is available */
810 if (find_view_range( base
, size
)) return STATUS_CONFLICTING_ADDRESSES
;
811 /* replace the reserved area by our mapping */
812 if ((ptr
= wine_anon_mmap( base
, size
, VIRTUAL_GetUnixProt(vprot
), MAP_FIXED
)) != base
)
813 return STATUS_INVALID_PARAMETER
;
816 if (is_beyond_limit( ptr
, size
, working_set_limit
)) working_set_limit
= address_space_limit
;
820 size_t view_size
= size
+ mask
+ 1;
821 struct alloc_area alloc
;
825 alloc
.top_down
= top_down
;
826 alloc
.limit
= user_space_limit
;
827 if (wine_mmap_enum_reserved_areas( alloc_reserved_area_callback
, &alloc
, top_down
))
830 TRACE( "got mem in reserved area %p-%p\n", ptr
, (char *)ptr
+ size
);
831 if (wine_anon_mmap( ptr
, size
, VIRTUAL_GetUnixProt(vprot
), MAP_FIXED
) != ptr
)
832 return STATUS_INVALID_PARAMETER
;
838 if ((ptr
= wine_anon_mmap( NULL
, view_size
, VIRTUAL_GetUnixProt(vprot
), 0 )) == (void *)-1)
840 if (errno
== ENOMEM
) return STATUS_NO_MEMORY
;
841 return STATUS_INVALID_PARAMETER
;
843 TRACE( "got mem with anon mmap %p-%p\n", ptr
, (char *)ptr
+ size
);
844 /* if we got something beyond the user limit, unmap it and retry */
845 if (is_beyond_limit( ptr
, view_size
, user_space_limit
)) add_reserved_area( ptr
, view_size
);
848 ptr
= unmap_extra_space( ptr
, view_size
, size
, mask
);
851 status
= create_view( view_ret
, ptr
, size
, vprot
);
852 if (status
!= STATUS_SUCCESS
) unmap_area( ptr
, size
);
857 /***********************************************************************
860 * Wrapper for mmap() to map a file into a view, falling back to read if mmap fails.
861 * The csVirtual section must be held by caller.
863 static NTSTATUS
map_file_into_view( struct file_view
*view
, int fd
, size_t start
, size_t size
,
864 off_t offset
, unsigned int vprot
, BOOL removable
)
867 int prot
= VIRTUAL_GetUnixProt( vprot
| VPROT_COMMITTED
/* make sure it is accessible */ );
868 BOOL shared_write
= (vprot
& VPROT_WRITE
) != 0;
870 assert( start
< view
->size
);
871 assert( start
+ size
<= view
->size
);
873 if (force_exec_prot
&& !(vprot
& VPROT_NOEXEC
) && (vprot
& VPROT_READ
))
875 TRACE( "forcing exec permission on mapping %p-%p\n",
876 (char *)view
->base
+ start
, (char *)view
->base
+ start
+ size
- 1 );
880 /* only try mmap if media is not removable (or if we require write access) */
881 if (!removable
|| shared_write
)
883 int flags
= MAP_FIXED
| (shared_write
? MAP_SHARED
: MAP_PRIVATE
);
885 if (mmap( (char *)view
->base
+ start
, size
, prot
, flags
, fd
, offset
) != (void *)-1)
888 if ((errno
== EPERM
) && (prot
& PROT_EXEC
))
889 ERR( "failed to set %08x protection on file map, noexec filesystem?\n", prot
);
891 /* mmap() failed; if this is because the file offset is not */
892 /* page-aligned (EINVAL), or because the underlying filesystem */
893 /* does not support mmap() (ENOEXEC,ENODEV), we do it by hand. */
894 if ((errno
!= ENOEXEC
) && (errno
!= EINVAL
) && (errno
!= ENODEV
)) return FILE_GetNtStatus();
895 if (shared_write
) /* we cannot fake shared write mappings */
897 if (errno
== EINVAL
) return STATUS_INVALID_PARAMETER
;
898 ERR( "shared writable mmap not supported, broken filesystem?\n" );
899 return STATUS_NOT_SUPPORTED
;
903 /* Reserve the memory with an anonymous mmap */
904 ptr
= wine_anon_mmap( (char *)view
->base
+ start
, size
, PROT_READ
| PROT_WRITE
, MAP_FIXED
);
905 if (ptr
== (void *)-1) return FILE_GetNtStatus();
906 /* Now read in the file */
907 pread( fd
, ptr
, size
, offset
);
908 if (prot
!= (PROT_READ
|PROT_WRITE
)) mprotect( ptr
, size
, prot
); /* Set the right protection */
910 memset( view
->prot
+ (start
>> page_shift
), vprot
, ROUND_SIZE(start
,size
) >> page_shift
);
911 return STATUS_SUCCESS
;
915 /***********************************************************************
918 * Get the size of the committed range starting at base.
919 * Also return the protections for the first page.
921 static SIZE_T
get_committed_size( struct file_view
*view
, void *base
, BYTE
*vprot
)
925 start
= ((char *)base
- (char *)view
->base
) >> page_shift
;
926 *vprot
= view
->prot
[start
];
928 if (view
->mapping
&& !(view
->protect
& VPROT_COMMITTED
))
931 SERVER_START_REQ( get_mapping_committed_range
)
933 req
->handle
= wine_server_obj_handle( view
->mapping
);
934 req
->offset
= start
<< page_shift
;
935 if (!wine_server_call( req
))
938 if (reply
->committed
)
940 *vprot
|= VPROT_COMMITTED
;
941 for (i
= 0; i
< ret
>> page_shift
; i
++) view
->prot
[start
+i
] |= VPROT_COMMITTED
;
948 for (i
= start
+ 1; i
< view
->size
>> page_shift
; i
++)
949 if ((*vprot
^ view
->prot
[i
]) & VPROT_COMMITTED
) break;
950 return (i
- start
) << page_shift
;
954 /***********************************************************************
957 * Decommit some pages of a given view.
958 * The csVirtual section must be held by caller.
960 static NTSTATUS
decommit_pages( struct file_view
*view
, size_t start
, size_t size
)
962 if (wine_anon_mmap( (char *)view
->base
+ start
, size
, PROT_NONE
, MAP_FIXED
) != (void *)-1)
964 BYTE
*p
= view
->prot
+ (start
>> page_shift
);
966 while (size
--) *p
++ &= ~VPROT_COMMITTED
;
967 return STATUS_SUCCESS
;
969 return FILE_GetNtStatus();
973 /***********************************************************************
974 * allocate_dos_memory
976 * Allocate the DOS memory range.
978 static NTSTATUS
allocate_dos_memory( struct file_view
**view
, unsigned int vprot
)
982 void * const low_64k
= (void *)0x10000;
983 const size_t dosmem_size
= 0x110000;
984 int unix_prot
= VIRTUAL_GetUnixProt( vprot
);
987 /* check for existing view */
989 if ((ptr
= list_head( &views_list
)))
991 struct file_view
*first_view
= LIST_ENTRY( ptr
, struct file_view
, entry
);
992 if (first_view
->base
< (void *)dosmem_size
) return STATUS_CONFLICTING_ADDRESSES
;
995 /* check without the first 64K */
997 if (wine_mmap_is_in_reserved_area( low_64k
, dosmem_size
- 0x10000 ) != 1)
999 addr
= wine_anon_mmap( low_64k
, dosmem_size
- 0x10000, unix_prot
, 0 );
1000 if (addr
!= low_64k
)
1002 if (addr
!= (void *)-1) munmap( addr
, dosmem_size
- 0x10000 );
1003 return map_view( view
, NULL
, dosmem_size
, 0xffff, 0, vprot
);
1007 /* now try to allocate the low 64K too */
1009 if (wine_mmap_is_in_reserved_area( NULL
, 0x10000 ) != 1)
1011 addr
= wine_anon_mmap( (void *)page_size
, 0x10000 - page_size
, unix_prot
, 0 );
1012 if (addr
== (void *)page_size
)
1014 if (!wine_anon_mmap( NULL
, page_size
, unix_prot
, MAP_FIXED
))
1017 TRACE( "successfully mapped low 64K range\n" );
1019 else TRACE( "failed to map page 0\n" );
1023 if (addr
!= (void *)-1) munmap( addr
, 0x10000 - page_size
);
1025 TRACE( "failed to map low 64K range\n" );
1029 /* now reserve the whole range */
1031 size
= (char *)dosmem_size
- (char *)addr
;
1032 wine_anon_mmap( addr
, size
, unix_prot
, MAP_FIXED
);
1033 return create_view( view
, addr
, size
, vprot
);
1037 /***********************************************************************
1038 * check_architecture
1040 * Check the architecture of a PE binary.
1042 static NTSTATUS
check_architecture( const IMAGE_NT_HEADERS
*nt
)
1044 static const char *arch
;
1047 if (nt
->FileHeader
.Machine
== IMAGE_FILE_MACHINE_I386
) return STATUS_SUCCESS
;
1048 if (nt
->FileHeader
.Machine
== IMAGE_FILE_MACHINE_AMD64
)
1050 if (nt
->FileHeader
.Characteristics
& IMAGE_FILE_DLL
) /* don't warn for a 64-bit exe */
1051 WARN( "loading amd64 dll in 32-bit mode will fail\n" );
1052 return STATUS_INVALID_IMAGE_FORMAT
;
1054 #elif defined(__x86_64__)
1055 if (nt
->FileHeader
.Machine
== IMAGE_FILE_MACHINE_AMD64
) return STATUS_SUCCESS
;
1056 if (nt
->FileHeader
.Machine
== IMAGE_FILE_MACHINE_I386
)
1058 if (nt
->FileHeader
.Characteristics
& IMAGE_FILE_DLL
) /* don't warn for a 32-bit exe */
1059 WARN( "loading 32-bit dll in 64-bit mode will fail\n" );
1060 return STATUS_INVALID_IMAGE_FORMAT
;
1062 #elif defined(__arm__) && !defined(__ARMEB__)
1063 if (nt
->FileHeader
.Machine
== IMAGE_FILE_MACHINE_ARM
||
1064 #if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__)
1065 nt
->FileHeader
.Machine
== IMAGE_FILE_MACHINE_ARMV7
||
1067 nt
->FileHeader
.Machine
== IMAGE_FILE_MACHINE_THUMB
)
1068 return STATUS_SUCCESS
;
1071 switch (nt
->FileHeader
.Machine
)
1073 case IMAGE_FILE_MACHINE_UNKNOWN
: arch
= "Unknown"; break;
1074 case IMAGE_FILE_MACHINE_I860
: arch
= "I860"; break;
1075 case IMAGE_FILE_MACHINE_I386
: arch
= "I386"; break;
1076 case IMAGE_FILE_MACHINE_R3000
: arch
= "R3000"; break;
1077 case IMAGE_FILE_MACHINE_R4000
: arch
= "R4000"; break;
1078 case IMAGE_FILE_MACHINE_R10000
: arch
= "R10000"; break;
1079 case IMAGE_FILE_MACHINE_ALPHA
: arch
= "Alpha"; break;
1080 case IMAGE_FILE_MACHINE_POWERPC
: arch
= "PowerPC"; break;
1081 case IMAGE_FILE_MACHINE_IA64
: arch
= "IA-64"; break;
1082 case IMAGE_FILE_MACHINE_ALPHA64
: arch
= "Alpha-64"; break;
1083 case IMAGE_FILE_MACHINE_AMD64
: arch
= "AMD-64"; break;
1084 case IMAGE_FILE_MACHINE_ARM
: arch
= "ARM"; break;
1085 case IMAGE_FILE_MACHINE_ARMV7
: arch
= "ARMv7"; break;
1086 case IMAGE_FILE_MACHINE_THUMB
: arch
= "ARM Thumb"; break;
1087 case IMAGE_FILE_MACHINE_SPARC
: arch
= "SPARC"; break;
1088 default: arch
= wine_dbg_sprintf( "Unknown-%04x", nt
->FileHeader
.Machine
); break;
1090 ERR( "Trying to load PE image for unsupported architecture %s\n", arch
);
1091 return STATUS_INVALID_IMAGE_FORMAT
;
1095 /***********************************************************************
1098 * Stat the underlying file for a memory view.
1100 static NTSTATUS
stat_mapping_file( struct file_view
*view
, struct stat
*st
)
1103 int unix_fd
, needs_close
;
1105 if (!view
->mapping
) return STATUS_NOT_MAPPED_VIEW
;
1106 if (!(status
= server_get_unix_fd( view
->mapping
, 0, &unix_fd
, &needs_close
, NULL
, NULL
)))
1108 if (fstat( unix_fd
, st
) == -1) status
= FILE_GetNtStatus();
1109 if (needs_close
) close( unix_fd
);
1115 /***********************************************************************
1118 * Map an executable (PE format) image into memory.
1120 static NTSTATUS
map_image( HANDLE hmapping
, int fd
, char *base
, SIZE_T total_size
, SIZE_T mask
,
1121 SIZE_T header_size
, int shared_fd
, HANDLE dup_mapping
, unsigned int map_vprot
, PVOID
*addr_ptr
)
1123 IMAGE_DOS_HEADER
*dos
;
1124 IMAGE_NT_HEADERS
*nt
;
1125 IMAGE_SECTION_HEADER
*sec
= NULL
;
1126 IMAGE_DATA_DIRECTORY
*imports
;
1127 NTSTATUS status
= STATUS_CONFLICTING_ADDRESSES
;
1132 struct file_view
*view
= NULL
;
1133 char *ptr
, *header_end
, *header_start
;
1136 /* zero-map the whole range */
1138 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1140 if (base
>= (char *)address_space_start
) /* make sure the DOS area remains free */
1141 status
= map_view( &view
, base
, total_size
, mask
, FALSE
,
1142 VPROT_COMMITTED
| VPROT_READ
| VPROT_EXEC
| VPROT_WRITECOPY
| VPROT_IMAGE
);
1144 if (status
!= STATUS_SUCCESS
)
1145 status
= map_view( &view
, NULL
, total_size
, mask
, FALSE
,
1146 VPROT_COMMITTED
| VPROT_READ
| VPROT_EXEC
| VPROT_WRITECOPY
| VPROT_IMAGE
);
1148 if (status
!= STATUS_SUCCESS
) goto error
;
1151 TRACE_(module
)( "mapped PE file at %p-%p\n", ptr
, ptr
+ total_size
);
1153 /* map the header */
1155 if (fstat( fd
, &st
) == -1)
1157 status
= FILE_GetNtStatus();
1160 status
= STATUS_INVALID_IMAGE_FORMAT
; /* generic error */
1161 if (!st
.st_size
) goto error
;
1162 header_size
= min( header_size
, st
.st_size
);
1163 if (map_file_into_view( view
, fd
, 0, header_size
, 0, VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITECOPY
,
1164 !dup_mapping
) != STATUS_SUCCESS
) goto error
;
1165 dos
= (IMAGE_DOS_HEADER
*)ptr
;
1166 nt
= (IMAGE_NT_HEADERS
*)(ptr
+ dos
->e_lfanew
);
1167 header_end
= ptr
+ ROUND_SIZE( 0, header_size
);
1168 memset( ptr
+ header_size
, 0, header_end
- (ptr
+ header_size
) );
1169 if ((char *)(nt
+ 1) > header_end
) goto error
;
1170 header_start
= (char*)&nt
->OptionalHeader
+nt
->FileHeader
.SizeOfOptionalHeader
;
1171 if (header_start
+ sizeof(*sec
) * nt
->FileHeader
.NumberOfSections
> header_end
) goto error
;
1172 /* Some applications (e.g. the Steam version of Borderlands) map over the top of the section headers,
1173 * copying the headers into local memory is necessary to properly load such applications. */
1174 sec
= RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*sec
) * nt
->FileHeader
.NumberOfSections
);
1177 status
= STATUS_NO_MEMORY
;
1180 memcpy(sec
, header_start
, sizeof(*sec
) * nt
->FileHeader
.NumberOfSections
);
1182 imports
= nt
->OptionalHeader
.DataDirectory
+ IMAGE_DIRECTORY_ENTRY_IMPORT
;
1183 if (!imports
->Size
|| !imports
->VirtualAddress
) imports
= NULL
;
1185 if (check_architecture( nt
)) goto error
;
1187 /* check for non page-aligned binary */
1189 if (nt
->OptionalHeader
.SectionAlignment
<= page_mask
)
1191 /* unaligned sections, this happens for native subsystem binaries */
1192 /* in that case Windows simply maps in the whole file */
1194 if (map_file_into_view( view
, fd
, 0, total_size
, 0, VPROT_COMMITTED
| VPROT_READ
,
1195 !dup_mapping
) != STATUS_SUCCESS
) goto error
;
1197 /* check that all sections are loaded at the right offset */
1198 if (nt
->OptionalHeader
.FileAlignment
!= nt
->OptionalHeader
.SectionAlignment
) goto error
;
1199 for (i
= 0; i
< nt
->FileHeader
.NumberOfSections
; i
++)
1201 if (sec
[i
].VirtualAddress
!= sec
[i
].PointerToRawData
)
1202 goto error
; /* Windows refuses to load in that case too */
1205 /* set the image protections */
1206 VIRTUAL_SetProt( view
, ptr
, total_size
,
1207 VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITECOPY
| VPROT_EXEC
);
1209 /* no relocations are performed on non page-aligned binaries */
1214 /* map all the sections */
1216 for (i
= pos
= 0; i
< nt
->FileHeader
.NumberOfSections
; i
++, sec
++)
1218 static const SIZE_T sector_align
= 0x1ff;
1219 SIZE_T map_size
, file_start
, file_size
, end
;
1221 if (!sec
->Misc
.VirtualSize
)
1222 map_size
= ROUND_SIZE( 0, sec
->SizeOfRawData
);
1224 map_size
= ROUND_SIZE( 0, sec
->Misc
.VirtualSize
);
1226 /* file positions are rounded to sector boundaries regardless of OptionalHeader.FileAlignment */
1227 file_start
= sec
->PointerToRawData
& ~sector_align
;
1228 file_size
= (sec
->SizeOfRawData
+ (sec
->PointerToRawData
& sector_align
) + sector_align
) & ~sector_align
;
1229 if (file_size
> map_size
) file_size
= map_size
;
1231 /* a few sanity checks */
1232 end
= sec
->VirtualAddress
+ ROUND_SIZE( sec
->VirtualAddress
, map_size
);
1233 if (sec
->VirtualAddress
> total_size
|| end
> total_size
|| end
< sec
->VirtualAddress
)
1235 WARN_(module
)( "Section %.8s too large (%x+%lx/%lx)\n",
1236 sec
->Name
, sec
->VirtualAddress
, map_size
, total_size
);
1240 if ((sec
->Characteristics
& IMAGE_SCN_MEM_SHARED
) &&
1241 (sec
->Characteristics
& IMAGE_SCN_MEM_WRITE
))
1243 TRACE_(module
)( "mapping shared section %.8s at %p off %x (%x) size %lx (%lx) flags %x\n",
1244 sec
->Name
, ptr
+ sec
->VirtualAddress
,
1245 sec
->PointerToRawData
, (int)pos
, file_size
, map_size
,
1246 sec
->Characteristics
);
1247 if (map_file_into_view( view
, shared_fd
, sec
->VirtualAddress
, map_size
, pos
,
1248 VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITE
,
1249 FALSE
) != STATUS_SUCCESS
)
1251 ERR_(module
)( "Could not map shared section %.8s\n", sec
->Name
);
1255 /* check if the import directory falls inside this section */
1256 if (imports
&& imports
->VirtualAddress
>= sec
->VirtualAddress
&&
1257 imports
->VirtualAddress
< sec
->VirtualAddress
+ map_size
)
1259 UINT_PTR base
= imports
->VirtualAddress
& ~page_mask
;
1260 UINT_PTR end
= base
+ ROUND_SIZE( imports
->VirtualAddress
, imports
->Size
);
1261 if (end
> sec
->VirtualAddress
+ map_size
) end
= sec
->VirtualAddress
+ map_size
;
1263 map_file_into_view( view
, shared_fd
, base
, end
- base
,
1264 pos
+ (base
- sec
->VirtualAddress
),
1265 VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITECOPY
,
1272 TRACE_(module
)( "mapping section %.8s at %p off %x size %x virt %x flags %x\n",
1273 sec
->Name
, ptr
+ sec
->VirtualAddress
,
1274 sec
->PointerToRawData
, sec
->SizeOfRawData
,
1275 sec
->Misc
.VirtualSize
, sec
->Characteristics
);
1277 if (!sec
->PointerToRawData
|| !file_size
) continue;
1279 /* Note: if the section is not aligned properly map_file_into_view will magically
1280 * fall back to read(), so we don't need to check anything here.
1282 end
= file_start
+ file_size
;
1283 if (sec
->PointerToRawData
>= st
.st_size
||
1284 end
> ((st
.st_size
+ sector_align
) & ~sector_align
) ||
1286 map_file_into_view( view
, fd
, sec
->VirtualAddress
, file_size
, file_start
,
1287 VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITECOPY
,
1288 !dup_mapping
) != STATUS_SUCCESS
)
1290 ERR_(module
)( "Could not map section %.8s, file probably truncated\n", sec
->Name
);
1294 if (file_size
& page_mask
)
1296 end
= ROUND_SIZE( 0, file_size
);
1297 if (end
> map_size
) end
= map_size
;
1298 TRACE_(module
)("clearing %p - %p\n",
1299 ptr
+ sec
->VirtualAddress
+ file_size
,
1300 ptr
+ sec
->VirtualAddress
+ end
);
1301 memset( ptr
+ sec
->VirtualAddress
+ file_size
, 0, end
- file_size
);
1306 /* perform base relocation, if necessary */
1309 ((nt
->FileHeader
.Characteristics
& IMAGE_FILE_DLL
) ||
1310 !NtCurrentTeb()->Peb
->ImageBaseAddress
) )
1312 IMAGE_BASE_RELOCATION
*rel
, *end
;
1313 const IMAGE_DATA_DIRECTORY
*relocs
;
1315 if (nt
->FileHeader
.Characteristics
& IMAGE_FILE_RELOCS_STRIPPED
)
1317 WARN_(module
)( "Need to relocate module from %p to %p, but there are no relocation records\n",
1319 status
= STATUS_CONFLICTING_ADDRESSES
;
1323 TRACE_(module
)( "relocating from %p-%p to %p-%p\n",
1324 base
, base
+ total_size
, ptr
, ptr
+ total_size
);
1326 relocs
= &nt
->OptionalHeader
.DataDirectory
[IMAGE_DIRECTORY_ENTRY_BASERELOC
];
1327 rel
= (IMAGE_BASE_RELOCATION
*)(ptr
+ relocs
->VirtualAddress
);
1328 end
= (IMAGE_BASE_RELOCATION
*)(ptr
+ relocs
->VirtualAddress
+ relocs
->Size
);
1331 while (rel
< end
- 1 && rel
->SizeOfBlock
)
1333 if (rel
->VirtualAddress
>= total_size
)
1335 WARN_(module
)( "invalid address %p in relocation %p\n", ptr
+ rel
->VirtualAddress
, rel
);
1336 status
= STATUS_ACCESS_VIOLATION
;
1339 rel
= LdrProcessRelocationBlock( ptr
+ rel
->VirtualAddress
,
1340 (rel
->SizeOfBlock
- sizeof(*rel
)) / sizeof(USHORT
),
1341 (USHORT
*)(rel
+ 1), delta
);
1342 if (!rel
) goto error
;
1346 /* set the image protections */
1348 VIRTUAL_SetProt( view
, ptr
, ROUND_SIZE( 0, header_size
), VPROT_COMMITTED
| VPROT_READ
);
1350 sec
= (IMAGE_SECTION_HEADER
*)((char *)&nt
->OptionalHeader
+nt
->FileHeader
.SizeOfOptionalHeader
);
1351 for (i
= 0; i
< nt
->FileHeader
.NumberOfSections
; i
++, sec
++)
1354 BYTE vprot
= VPROT_COMMITTED
;
1356 if (sec
->Misc
.VirtualSize
)
1357 size
= ROUND_SIZE( sec
->VirtualAddress
, sec
->Misc
.VirtualSize
);
1359 size
= ROUND_SIZE( sec
->VirtualAddress
, sec
->SizeOfRawData
);
1361 if (sec
->Characteristics
& IMAGE_SCN_MEM_READ
) vprot
|= VPROT_READ
;
1362 if (sec
->Characteristics
& IMAGE_SCN_MEM_WRITE
) vprot
|= VPROT_WRITECOPY
;
1363 if (sec
->Characteristics
& IMAGE_SCN_MEM_EXECUTE
) vprot
|= VPROT_EXEC
;
1365 /* Dumb game crack lets the AOEP point into a data section. Adjust. */
1366 if ((nt
->OptionalHeader
.AddressOfEntryPoint
>= sec
->VirtualAddress
) &&
1367 (nt
->OptionalHeader
.AddressOfEntryPoint
< sec
->VirtualAddress
+ size
))
1368 vprot
|= VPROT_EXEC
;
1370 if (!VIRTUAL_SetProt( view
, ptr
+ sec
->VirtualAddress
, size
, vprot
) && (vprot
& VPROT_EXEC
))
1371 ERR( "failed to set %08x protection on section %.8s, noexec filesystem?\n",
1372 sec
->Characteristics
, sec
->Name
);
1376 RtlFreeHeap( GetProcessHeap(), 0, sec
);
1377 view
->mapping
= dup_mapping
;
1378 view
->map_protect
= map_vprot
;
1379 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1382 #ifdef VALGRIND_LOAD_PDB_DEBUGINFO
1383 VALGRIND_LOAD_PDB_DEBUGINFO(fd
, ptr
, total_size
, delta
);
1385 if (ptr
!= base
) return STATUS_IMAGE_NOT_AT_BASE
;
1386 return STATUS_SUCCESS
;
1389 RtlFreeHeap( GetProcessHeap(), 0, sec
);
1390 if (view
) delete_view( view
);
1391 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1392 if (dup_mapping
) NtClose( dup_mapping
);
1397 /* callback for wine_mmap_enum_reserved_areas to allocate space for the virtual heap */
1398 static int alloc_virtual_heap( void *base
, size_t size
, void *arg
)
1400 void **heap_base
= arg
;
1402 if (is_beyond_limit( base
, size
, address_space_limit
)) address_space_limit
= (char *)base
+ size
;
1403 if (size
< VIRTUAL_HEAP_SIZE
) return 0;
1404 if (is_win64
&& base
< (void *)0x80000000) return 0;
1405 *heap_base
= wine_anon_mmap( (char *)base
+ size
- VIRTUAL_HEAP_SIZE
,
1406 VIRTUAL_HEAP_SIZE
, PROT_READ
|PROT_WRITE
, MAP_FIXED
);
1407 return (*heap_base
!= (void *)-1);
1410 /***********************************************************************
1413 void virtual_init(void)
1415 const char *preload
;
1418 struct file_view
*heap_view
;
1421 page_size
= getpagesize();
1422 page_mask
= page_size
- 1;
1423 /* Make sure we have a power of 2 */
1424 assert( !(page_size
& page_mask
) );
1426 while ((1 << page_shift
) != page_size
) page_shift
++;
1427 user_space_limit
= working_set_limit
= address_space_limit
= (void *)~page_mask
;
1428 #endif /* page_mask */
1429 if ((preload
= getenv("WINEPRELOADRESERVE")))
1431 unsigned long start
, end
;
1432 if (sscanf( preload
, "%lx-%lx", &start
, &end
) == 2)
1434 preload_reserve_start
= (void *)start
;
1435 preload_reserve_end
= (void *)end
;
1439 /* try to find space in a reserved area for the virtual heap */
1440 if (!wine_mmap_enum_reserved_areas( alloc_virtual_heap
, &heap_base
, 1 ))
1441 heap_base
= wine_anon_mmap( NULL
, VIRTUAL_HEAP_SIZE
, PROT_READ
|PROT_WRITE
, 0 );
1443 assert( heap_base
!= (void *)-1 );
1444 virtual_heap
= RtlCreateHeap( HEAP_NO_SERIALIZE
, heap_base
, VIRTUAL_HEAP_SIZE
,
1445 VIRTUAL_HEAP_SIZE
, NULL
, NULL
);
1446 create_view( &heap_view
, heap_base
, VIRTUAL_HEAP_SIZE
, VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITE
);
1448 /* make the DOS area accessible (except the low 64K) to hide bugs in broken apps like Excel 2003 */
1449 size
= (char *)address_space_start
- (char *)0x10000;
1450 if (size
&& wine_mmap_is_in_reserved_area( (void*)0x10000, size
) == 1)
1451 wine_anon_mmap( (void *)0x10000, size
, PROT_READ
| PROT_WRITE
, MAP_FIXED
);
1455 /***********************************************************************
1456 * virtual_init_threading
1458 void virtual_init_threading(void)
1464 /***********************************************************************
1465 * virtual_get_system_info
1467 void virtual_get_system_info( SYSTEM_BASIC_INFORMATION
*info
)
1470 info
->KeMaximumIncrement
= 0; /* FIXME */
1471 info
->PageSize
= page_size
;
1472 info
->MmLowestPhysicalPage
= 1;
1473 info
->MmHighestPhysicalPage
= 0x7fffffff / page_size
;
1474 info
->MmNumberOfPhysicalPages
= info
->MmHighestPhysicalPage
- info
->MmLowestPhysicalPage
;
1475 info
->AllocationGranularity
= get_mask(0) + 1;
1476 info
->LowestUserAddress
= (void *)0x10000;
1477 info
->HighestUserAddress
= (char *)user_space_limit
- 1;
1478 info
->ActiveProcessorsAffinityMask
= (1 << NtCurrentTeb()->Peb
->NumberOfProcessors
) - 1;
1479 info
->NumberOfProcessors
= NtCurrentTeb()->Peb
->NumberOfProcessors
;
1483 /***********************************************************************
1484 * virtual_create_builtin_view
1486 NTSTATUS
virtual_create_builtin_view( void *module
)
1490 IMAGE_NT_HEADERS
*nt
= RtlImageNtHeader( module
);
1491 SIZE_T size
= nt
->OptionalHeader
.SizeOfImage
;
1492 IMAGE_SECTION_HEADER
*sec
;
1493 struct file_view
*view
;
1497 size
= ROUND_SIZE( module
, size
);
1498 base
= ROUND_ADDR( module
, page_mask
);
1499 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1500 status
= create_view( &view
, base
, size
, VPROT_SYSTEM
| VPROT_IMAGE
|
1501 VPROT_COMMITTED
| VPROT_READ
| VPROT_WRITECOPY
| VPROT_EXEC
);
1502 if (!status
) TRACE( "created %p-%p\n", base
, (char *)base
+ size
);
1503 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1505 if (status
) return status
;
1507 /* The PE header is always read-only, no write, no execute. */
1508 view
->prot
[0] = VPROT_COMMITTED
| VPROT_READ
;
1510 sec
= (IMAGE_SECTION_HEADER
*)((char *)&nt
->OptionalHeader
+ nt
->FileHeader
.SizeOfOptionalHeader
);
1511 for (i
= 0; i
< nt
->FileHeader
.NumberOfSections
; i
++)
1513 BYTE flags
= VPROT_COMMITTED
;
1515 if (sec
[i
].Characteristics
& IMAGE_SCN_MEM_EXECUTE
) flags
|= VPROT_EXEC
;
1516 if (sec
[i
].Characteristics
& IMAGE_SCN_MEM_READ
) flags
|= VPROT_READ
;
1517 if (sec
[i
].Characteristics
& IMAGE_SCN_MEM_WRITE
) flags
|= VPROT_WRITE
;
1518 memset (view
->prot
+ (sec
[i
].VirtualAddress
>> page_shift
), flags
,
1519 ROUND_SIZE( sec
[i
].VirtualAddress
, sec
[i
].Misc
.VirtualSize
) >> page_shift
);
1526 /***********************************************************************
1527 * virtual_alloc_thread_stack
1529 NTSTATUS
virtual_alloc_thread_stack( TEB
*teb
, SIZE_T reserve_size
, SIZE_T commit_size
)
1531 struct file_view
*view
;
1536 if (!reserve_size
|| !commit_size
)
1538 IMAGE_NT_HEADERS
*nt
= RtlImageNtHeader( NtCurrentTeb()->Peb
->ImageBaseAddress
);
1539 if (!reserve_size
) reserve_size
= nt
->OptionalHeader
.SizeOfStackReserve
;
1540 if (!commit_size
) commit_size
= nt
->OptionalHeader
.SizeOfStackCommit
;
1543 size
= max( reserve_size
, commit_size
);
1544 if (size
< 1024 * 1024) size
= 1024 * 1024; /* Xlib needs a large stack */
1545 size
= (size
+ 0xffff) & ~0xffff; /* round to 64K boundary */
1547 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1549 if ((status
= map_view( &view
, NULL
, size
, 0xffff, 0,
1550 VPROT_READ
| VPROT_WRITE
| VPROT_COMMITTED
| VPROT_VALLOC
)) != STATUS_SUCCESS
)
1553 #ifdef VALGRIND_STACK_REGISTER
1554 VALGRIND_STACK_REGISTER( view
->base
, (char *)view
->base
+ view
->size
);
1557 /* setup no access guard page */
1558 VIRTUAL_SetProt( view
, view
->base
, page_size
, VPROT_COMMITTED
);
1559 VIRTUAL_SetProt( view
, (char *)view
->base
+ page_size
, page_size
,
1560 VPROT_READ
| VPROT_WRITE
| VPROT_COMMITTED
| VPROT_GUARD
);
1562 /* note: limit is lower than base since the stack grows down */
1563 teb
->DeallocationStack
= view
->base
;
1564 teb
->Tib
.StackBase
= (char *)view
->base
+ view
->size
;
1565 teb
->Tib
.StackLimit
= (char *)view
->base
+ 2 * page_size
;
1567 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1572 /***********************************************************************
1573 * virtual_clear_thread_stack
1575 * Clear the stack contents before calling the main entry point, some broken apps need that.
1577 void virtual_clear_thread_stack(void)
1579 void *stack
= NtCurrentTeb()->Tib
.StackLimit
;
1580 size_t size
= (char *)NtCurrentTeb()->Tib
.StackBase
- (char *)NtCurrentTeb()->Tib
.StackLimit
;
1582 wine_anon_mmap( stack
, size
, PROT_READ
| PROT_WRITE
, MAP_FIXED
);
1583 if (force_exec_prot
) mprotect( stack
, size
, PROT_READ
| PROT_WRITE
| PROT_EXEC
);
1587 /***********************************************************************
1588 * virtual_handle_fault
1590 NTSTATUS
virtual_handle_fault( LPCVOID addr
, DWORD err
)
1592 struct file_view
*view
;
1593 NTSTATUS ret
= STATUS_ACCESS_VIOLATION
;
1596 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1597 if ((view
= VIRTUAL_FindView( addr
, 0 )))
1599 void *page
= ROUND_ADDR( addr
, page_mask
);
1600 BYTE
*vprot
= &view
->prot
[((const char *)page
- (const char *)view
->base
) >> page_shift
];
1601 if (*vprot
& VPROT_GUARD
)
1603 VIRTUAL_SetProt( view
, page
, page_size
, *vprot
& ~VPROT_GUARD
);
1604 ret
= STATUS_GUARD_PAGE_VIOLATION
;
1606 if ((err
& EXCEPTION_WRITE_FAULT
) && (view
->protect
& VPROT_WRITEWATCH
))
1608 if (*vprot
& VPROT_WRITEWATCH
)
1610 *vprot
&= ~VPROT_WRITEWATCH
;
1611 VIRTUAL_SetProt( view
, page
, page_size
, *vprot
);
1613 /* ignore fault if page is writable now */
1614 if (VIRTUAL_GetUnixProt( *vprot
) & PROT_WRITE
) ret
= STATUS_SUCCESS
;
1617 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1623 /***********************************************************************
1624 * virtual_handle_stack_fault
1626 * Handle an access fault inside the current thread stack.
1627 * Called from inside a signal handler.
1629 BOOL
virtual_handle_stack_fault( void *addr
)
1631 struct file_view
*view
;
1634 RtlEnterCriticalSection( &csVirtual
); /* no need for signal masking inside signal handler */
1635 if ((view
= VIRTUAL_FindView( addr
, 0 )))
1637 void *page
= ROUND_ADDR( addr
, page_mask
);
1638 BYTE vprot
= view
->prot
[((const char *)page
- (const char *)view
->base
) >> page_shift
];
1639 if (vprot
& VPROT_GUARD
)
1641 VIRTUAL_SetProt( view
, page
, page_size
, vprot
& ~VPROT_GUARD
);
1642 NtCurrentTeb()->Tib
.StackLimit
= page
;
1643 if ((char *)page
>= (char *)NtCurrentTeb()->DeallocationStack
+ 2*page_size
)
1645 vprot
= view
->prot
[((char *)page
- page_size
- (char *)view
->base
) >> page_shift
];
1646 VIRTUAL_SetProt( view
, (char *)page
- page_size
, page_size
, vprot
| VPROT_GUARD
);
1651 RtlLeaveCriticalSection( &csVirtual
);
1656 /***********************************************************************
1657 * virtual_check_buffer_for_read
1659 * Check if a memory buffer can be read, triggering page faults if needed for DIB section access.
1661 BOOL
virtual_check_buffer_for_read( const void *ptr
, SIZE_T size
)
1663 if (!size
) return TRUE
;
1664 if (!ptr
) return FALSE
;
1668 volatile const char *p
= ptr
;
1669 char dummy
__attribute__((unused
));
1670 SIZE_T count
= size
;
1672 while (count
> page_size
)
1679 dummy
= p
[count
- 1];
1690 /***********************************************************************
1691 * virtual_check_buffer_for_write
1693 * Check if a memory buffer can be written to, triggering page faults if needed for write watches.
1695 BOOL
virtual_check_buffer_for_write( void *ptr
, SIZE_T size
)
1697 if (!size
) return TRUE
;
1698 if (!ptr
) return FALSE
;
1702 volatile char *p
= ptr
;
1703 SIZE_T count
= size
;
1705 while (count
> page_size
)
1723 /***********************************************************************
1724 * VIRTUAL_SetForceExec
1726 * Whether to force exec prot on all views.
1728 void VIRTUAL_SetForceExec( BOOL enable
)
1730 struct file_view
*view
;
1733 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1734 if (!force_exec_prot
!= !enable
) /* change all existing views */
1736 force_exec_prot
= enable
;
1738 LIST_FOR_EACH_ENTRY( view
, &views_list
, struct file_view
, entry
)
1741 char *addr
= view
->base
;
1742 BYTE commit
= view
->mapping
? VPROT_COMMITTED
: 0; /* file mappings are always accessible */
1743 int unix_prot
= VIRTUAL_GetUnixProt( view
->prot
[0] | commit
);
1745 if (view
->protect
& VPROT_NOEXEC
) continue;
1746 for (count
= i
= 1; i
< view
->size
>> page_shift
; i
++, count
++)
1748 int prot
= VIRTUAL_GetUnixProt( view
->prot
[i
] | commit
);
1749 if (prot
== unix_prot
) continue;
1750 if ((unix_prot
& PROT_READ
) && !(unix_prot
& PROT_EXEC
))
1752 TRACE( "%s exec prot for %p-%p\n",
1753 force_exec_prot
? "enabling" : "disabling",
1754 addr
, addr
+ (count
<< page_shift
) - 1 );
1755 mprotect( addr
, count
<< page_shift
,
1756 unix_prot
| (force_exec_prot
? PROT_EXEC
: 0) );
1758 addr
+= (count
<< page_shift
);
1764 if ((unix_prot
& PROT_READ
) && !(unix_prot
& PROT_EXEC
))
1766 TRACE( "%s exec prot for %p-%p\n",
1767 force_exec_prot
? "enabling" : "disabling",
1768 addr
, addr
+ (count
<< page_shift
) - 1 );
1769 mprotect( addr
, count
<< page_shift
,
1770 unix_prot
| (force_exec_prot
? PROT_EXEC
: 0) );
1775 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1784 /* free reserved areas above the limit; callback for wine_mmap_enum_reserved_areas */
1785 static int free_reserved_memory( void *base
, size_t size
, void *arg
)
1787 struct free_range
*range
= arg
;
1789 if ((char *)base
>= range
->limit
) return 0;
1790 if ((char *)base
+ size
<= range
->base
) return 0;
1791 if ((char *)base
< range
->base
)
1793 size
-= range
->base
- (char *)base
;
1796 if ((char *)base
+ size
> range
->limit
) size
= range
->limit
- (char *)base
;
1797 remove_reserved_area( base
, size
);
1798 return 1; /* stop enumeration since the list has changed */
1801 /***********************************************************************
1802 * virtual_release_address_space
1804 * Release some address space once we have loaded and initialized the app.
1806 void virtual_release_address_space( BOOL free_high_mem
)
1808 struct free_range range
;
1811 if (user_space_limit
== address_space_limit
) return; /* no need to free anything */
1813 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1815 /* no large address space on win9x */
1816 if (free_high_mem
&& NtCurrentTeb()->Peb
->OSPlatformId
== VER_PLATFORM_WIN32_NT
)
1818 range
.base
= (char *)0x82000000;
1819 range
.limit
= address_space_limit
;
1820 while (wine_mmap_enum_reserved_areas( free_reserved_memory
, &range
, 1 )) /* nothing */;
1821 user_space_limit
= working_set_limit
= address_space_limit
;
1825 #ifndef __APPLE__ /* dyld doesn't support parts of the WINE_DOS segment being unmapped */
1826 range
.base
= (char *)0x20000000;
1827 range
.limit
= (char *)0x7f000000;
1828 while (wine_mmap_enum_reserved_areas( free_reserved_memory
, &range
, 0 )) /* nothing */;
1832 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1836 /***********************************************************************
1837 * NtAllocateVirtualMemory (NTDLL.@)
1838 * ZwAllocateVirtualMemory (NTDLL.@)
1840 NTSTATUS WINAPI
NtAllocateVirtualMemory( HANDLE process
, PVOID
*ret
, ULONG zero_bits
,
1841 SIZE_T
*size_ptr
, ULONG type
, ULONG protect
)
1845 SIZE_T size
= *size_ptr
;
1846 SIZE_T mask
= get_mask( zero_bits
);
1847 NTSTATUS status
= STATUS_SUCCESS
;
1848 struct file_view
*view
;
1851 TRACE("%p %p %08lx %x %08x\n", process
, *ret
, size
, type
, protect
);
1853 if (!size
) return STATUS_INVALID_PARAMETER
;
1855 if (process
!= NtCurrentProcess())
1858 apc_result_t result
;
1860 memset( &call
, 0, sizeof(call
) );
1862 call
.virtual_alloc
.type
= APC_VIRTUAL_ALLOC
;
1863 call
.virtual_alloc
.addr
= wine_server_client_ptr( *ret
);
1864 call
.virtual_alloc
.size
= *size_ptr
;
1865 call
.virtual_alloc
.zero_bits
= zero_bits
;
1866 call
.virtual_alloc
.op_type
= type
;
1867 call
.virtual_alloc
.prot
= protect
;
1868 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
1869 if (status
!= STATUS_SUCCESS
) return status
;
1871 if (result
.virtual_alloc
.status
== STATUS_SUCCESS
)
1873 *ret
= wine_server_get_ptr( result
.virtual_alloc
.addr
);
1874 *size_ptr
= result
.virtual_alloc
.size
;
1876 return result
.virtual_alloc
.status
;
1879 /* Round parameters to a page boundary */
1881 if (is_beyond_limit( 0, size
, working_set_limit
)) return STATUS_WORKING_SET_LIMIT_RANGE
;
1883 if ((status
= get_vprot_flags( protect
, &vprot
, FALSE
))) return status
;
1884 if (vprot
& VPROT_WRITECOPY
) return STATUS_INVALID_PAGE_PROTECTION
;
1885 vprot
|= VPROT_VALLOC
;
1886 if (type
& MEM_COMMIT
) vprot
|= VPROT_COMMITTED
;
1890 if (type
& MEM_RESERVE
) /* Round down to 64k boundary */
1891 base
= ROUND_ADDR( *ret
, mask
);
1893 base
= ROUND_ADDR( *ret
, page_mask
);
1894 size
= (((UINT_PTR
)*ret
+ size
+ page_mask
) & ~page_mask
) - (UINT_PTR
)base
;
1896 /* address 1 is magic to mean DOS area */
1897 if (!base
&& *ret
== (void *)1 && size
== 0x110000)
1899 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1900 status
= allocate_dos_memory( &view
, vprot
);
1901 if (status
== STATUS_SUCCESS
)
1904 *size_ptr
= view
->size
;
1906 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1910 /* disallow low 64k, wrap-around and kernel space */
1911 if (((char *)base
< (char *)0x10000) ||
1912 ((char *)base
+ size
< (char *)base
) ||
1913 is_beyond_limit( base
, size
, address_space_limit
))
1914 return STATUS_INVALID_PARAMETER
;
1919 size
= (size
+ page_mask
) & ~page_mask
;
1922 /* Compute the alloc type flags */
1924 if (!(type
& (MEM_COMMIT
| MEM_RESERVE
| MEM_RESET
)) ||
1925 (type
& ~(MEM_COMMIT
| MEM_RESERVE
| MEM_TOP_DOWN
| MEM_WRITE_WATCH
| MEM_RESET
)))
1927 WARN("called with wrong alloc type flags (%08x) !\n", type
);
1928 return STATUS_INVALID_PARAMETER
;
1931 /* Reserve the memory */
1933 if (use_locks
) server_enter_uninterrupted_section( &csVirtual
, &sigset
);
1935 if ((type
& MEM_RESERVE
) || !base
)
1937 if (type
& MEM_WRITE_WATCH
) vprot
|= VPROT_WRITEWATCH
;
1938 status
= map_view( &view
, base
, size
, mask
, type
& MEM_TOP_DOWN
, vprot
);
1939 if (status
== STATUS_SUCCESS
) base
= view
->base
;
1941 else if (type
& MEM_RESET
)
1943 if (!(view
= VIRTUAL_FindView( base
, size
))) status
= STATUS_NOT_MAPPED_VIEW
;
1944 else madvise( base
, size
, MADV_DONTNEED
);
1946 else /* commit the pages */
1948 if (!(view
= VIRTUAL_FindView( base
, size
))) status
= STATUS_NOT_MAPPED_VIEW
;
1949 else if (!VIRTUAL_SetProt( view
, base
, size
, vprot
)) status
= STATUS_ACCESS_DENIED
;
1950 else if (view
->mapping
&& !(view
->protect
& VPROT_COMMITTED
))
1952 SERVER_START_REQ( add_mapping_committed_range
)
1954 req
->handle
= wine_server_obj_handle( view
->mapping
);
1955 req
->offset
= (char *)base
- (char *)view
->base
;
1957 wine_server_call( req
);
1963 if (use_locks
) server_leave_uninterrupted_section( &csVirtual
, &sigset
);
1965 if (status
== STATUS_SUCCESS
)
1974 /***********************************************************************
1975 * NtFreeVirtualMemory (NTDLL.@)
1976 * ZwFreeVirtualMemory (NTDLL.@)
1978 NTSTATUS WINAPI
NtFreeVirtualMemory( HANDLE process
, PVOID
*addr_ptr
, SIZE_T
*size_ptr
, ULONG type
)
1980 struct file_view
*view
;
1983 NTSTATUS status
= STATUS_SUCCESS
;
1984 LPVOID addr
= *addr_ptr
;
1985 SIZE_T size
= *size_ptr
;
1987 TRACE("%p %p %08lx %x\n", process
, addr
, size
, type
);
1989 if (process
!= NtCurrentProcess())
1992 apc_result_t result
;
1994 memset( &call
, 0, sizeof(call
) );
1996 call
.virtual_free
.type
= APC_VIRTUAL_FREE
;
1997 call
.virtual_free
.addr
= wine_server_client_ptr( addr
);
1998 call
.virtual_free
.size
= size
;
1999 call
.virtual_free
.op_type
= type
;
2000 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
2001 if (status
!= STATUS_SUCCESS
) return status
;
2003 if (result
.virtual_free
.status
== STATUS_SUCCESS
)
2005 *addr_ptr
= wine_server_get_ptr( result
.virtual_free
.addr
);
2006 *size_ptr
= result
.virtual_free
.size
;
2008 return result
.virtual_free
.status
;
2011 /* Fix the parameters */
2013 size
= ROUND_SIZE( addr
, size
);
2014 base
= ROUND_ADDR( addr
, page_mask
);
2016 /* avoid freeing the DOS area when a broken app passes a NULL pointer */
2017 if (!base
) return STATUS_INVALID_PARAMETER
;
2019 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2021 if (!(view
= VIRTUAL_FindView( base
, size
)) || !(view
->protect
& VPROT_VALLOC
))
2023 status
= STATUS_INVALID_PARAMETER
;
2025 else if (type
== MEM_RELEASE
)
2027 /* Free the pages */
2029 if (size
|| (base
!= view
->base
)) status
= STATUS_INVALID_PARAMETER
;
2032 delete_view( view
);
2037 else if (type
== MEM_DECOMMIT
)
2039 status
= decommit_pages( view
, base
- (char *)view
->base
, size
);
2040 if (status
== STATUS_SUCCESS
)
2048 WARN("called with wrong free type flags (%08x) !\n", type
);
2049 status
= STATUS_INVALID_PARAMETER
;
2052 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2056 static ULONG
map_protection_to_access( ULONG vprot
)
2058 vprot
&= VPROT_READ
| VPROT_WRITE
| VPROT_EXEC
| VPROT_WRITECOPY
;
2059 if (vprot
& VPROT_EXEC
)
2061 if (vprot
& VPROT_WRITE
) vprot
|= VPROT_WRITECOPY
;
2063 else vprot
&= ~VPROT_WRITECOPY
;
2067 static BOOL
is_compatible_protection( const struct file_view
*view
, ULONG new_prot
)
2069 ULONG view_prot
, map_prot
;
2071 view_prot
= map_protection_to_access( view
->protect
);
2072 new_prot
= map_protection_to_access( new_prot
);
2074 if (view_prot
== new_prot
) return TRUE
;
2075 if (!view_prot
) return FALSE
;
2077 if ((view_prot
& new_prot
) != new_prot
) return FALSE
;
2079 map_prot
= map_protection_to_access( view
->map_protect
);
2080 if ((map_prot
& new_prot
) == new_prot
) return TRUE
;
2085 /***********************************************************************
2086 * NtProtectVirtualMemory (NTDLL.@)
2087 * ZwProtectVirtualMemory (NTDLL.@)
2089 NTSTATUS WINAPI
NtProtectVirtualMemory( HANDLE process
, PVOID
*addr_ptr
, SIZE_T
*size_ptr
,
2090 ULONG new_prot
, ULONG
*old_prot
)
2092 struct file_view
*view
;
2094 NTSTATUS status
= STATUS_SUCCESS
;
2097 unsigned int new_vprot
;
2098 SIZE_T size
= *size_ptr
;
2099 LPVOID addr
= *addr_ptr
;
2101 TRACE("%p %p %08lx %08x\n", process
, addr
, size
, new_prot
);
2103 if (process
!= NtCurrentProcess())
2106 apc_result_t result
;
2108 memset( &call
, 0, sizeof(call
) );
2110 call
.virtual_protect
.type
= APC_VIRTUAL_PROTECT
;
2111 call
.virtual_protect
.addr
= wine_server_client_ptr( addr
);
2112 call
.virtual_protect
.size
= size
;
2113 call
.virtual_protect
.prot
= new_prot
;
2114 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
2115 if (status
!= STATUS_SUCCESS
) return status
;
2117 if (result
.virtual_protect
.status
== STATUS_SUCCESS
)
2119 *addr_ptr
= wine_server_get_ptr( result
.virtual_protect
.addr
);
2120 *size_ptr
= result
.virtual_protect
.size
;
2121 if (old_prot
) *old_prot
= result
.virtual_protect
.prot
;
2123 return result
.virtual_protect
.status
;
2126 /* Fix the parameters */
2128 size
= ROUND_SIZE( addr
, size
);
2129 base
= ROUND_ADDR( addr
, page_mask
);
2131 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2133 if ((view
= VIRTUAL_FindView( base
, size
)))
2135 /* Make sure all the pages are committed */
2136 if (get_committed_size( view
, base
, &vprot
) >= size
&& (vprot
& VPROT_COMMITTED
))
2138 if (!(status
= get_vprot_flags( new_prot
, &new_vprot
, view
->protect
& VPROT_IMAGE
)))
2140 if ((new_vprot
& VPROT_WRITECOPY
) && (view
->protect
& VPROT_VALLOC
))
2141 status
= STATUS_INVALID_PAGE_PROTECTION
;
2144 if (!view
->mapping
|| is_compatible_protection( view
, new_vprot
))
2146 new_vprot
|= VPROT_COMMITTED
;
2147 if (old_prot
) *old_prot
= VIRTUAL_GetWin32Prot( vprot
);
2148 if (!VIRTUAL_SetProt( view
, base
, size
, new_vprot
)) status
= STATUS_ACCESS_DENIED
;
2150 else status
= STATUS_INVALID_PAGE_PROTECTION
;
2154 else status
= STATUS_NOT_COMMITTED
;
2156 else status
= STATUS_INVALID_PARAMETER
;
2158 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2160 if (status
== STATUS_SUCCESS
)
2169 /* retrieve state for a free memory area; callback for wine_mmap_enum_reserved_areas */
2170 static int get_free_mem_state_callback( void *start
, size_t size
, void *arg
)
2172 MEMORY_BASIC_INFORMATION
*info
= arg
;
2173 void *end
= (char *)start
+ size
;
2175 if ((char *)info
->BaseAddress
+ info
->RegionSize
< (char *)start
) return 0;
2177 if (info
->BaseAddress
>= end
)
2179 if (info
->AllocationBase
< end
) info
->AllocationBase
= end
;
2183 if (info
->BaseAddress
>= start
|| start
<= address_space_start
)
2185 /* it's a real free area */
2186 info
->State
= MEM_FREE
;
2187 info
->Protect
= PAGE_NOACCESS
;
2188 info
->AllocationBase
= 0;
2189 info
->AllocationProtect
= 0;
2191 if ((char *)info
->BaseAddress
+ info
->RegionSize
> (char *)end
)
2192 info
->RegionSize
= (char *)end
- (char *)info
->BaseAddress
;
2194 else /* outside of the reserved area, pretend it's allocated */
2196 info
->RegionSize
= (char *)start
- (char *)info
->BaseAddress
;
2197 info
->State
= MEM_RESERVE
;
2198 info
->Protect
= PAGE_NOACCESS
;
2199 info
->AllocationProtect
= PAGE_NOACCESS
;
2200 info
->Type
= MEM_PRIVATE
;
2205 #define UNIMPLEMENTED_INFO_CLASS(c) \
2207 FIXME("(process=%p,addr=%p) Unimplemented information class: " #c "\n", process, addr); \
2208 return STATUS_INVALID_INFO_CLASS
2210 /***********************************************************************
2211 * NtQueryVirtualMemory (NTDLL.@)
2212 * ZwQueryVirtualMemory (NTDLL.@)
2214 NTSTATUS WINAPI
NtQueryVirtualMemory( HANDLE process
, LPCVOID addr
,
2215 MEMORY_INFORMATION_CLASS info_class
, PVOID buffer
,
2216 SIZE_T len
, SIZE_T
*res_len
)
2218 struct file_view
*view
;
2219 char *base
, *alloc_base
= 0;
2222 MEMORY_BASIC_INFORMATION
*info
= buffer
;
2225 if (info_class
!= MemoryBasicInformation
)
2229 UNIMPLEMENTED_INFO_CLASS(MemoryWorkingSetList
);
2230 UNIMPLEMENTED_INFO_CLASS(MemorySectionName
);
2231 UNIMPLEMENTED_INFO_CLASS(MemoryBasicVlmInformation
);
2234 FIXME("(%p,%p,info_class=%d,%p,%ld,%p) Unknown information class\n",
2235 process
, addr
, info_class
, buffer
, len
, res_len
);
2236 return STATUS_INVALID_INFO_CLASS
;
2240 if (process
!= NtCurrentProcess())
2244 apc_result_t result
;
2246 memset( &call
, 0, sizeof(call
) );
2248 call
.virtual_query
.type
= APC_VIRTUAL_QUERY
;
2249 call
.virtual_query
.addr
= wine_server_client_ptr( addr
);
2250 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
2251 if (status
!= STATUS_SUCCESS
) return status
;
2253 if (result
.virtual_query
.status
== STATUS_SUCCESS
)
2255 info
->BaseAddress
= wine_server_get_ptr( result
.virtual_query
.base
);
2256 info
->AllocationBase
= wine_server_get_ptr( result
.virtual_query
.alloc_base
);
2257 info
->RegionSize
= result
.virtual_query
.size
;
2258 info
->Protect
= result
.virtual_query
.prot
;
2259 info
->AllocationProtect
= result
.virtual_query
.alloc_prot
;
2260 info
->State
= (DWORD
)result
.virtual_query
.state
<< 12;
2261 info
->Type
= (DWORD
)result
.virtual_query
.alloc_type
<< 16;
2262 if (info
->RegionSize
!= result
.virtual_query
.size
) /* truncated */
2263 return STATUS_INVALID_PARAMETER
; /* FIXME */
2264 if (res_len
) *res_len
= sizeof(*info
);
2266 return result
.virtual_query
.status
;
2269 base
= ROUND_ADDR( addr
, page_mask
);
2271 if (is_beyond_limit( base
, 1, working_set_limit
)) return STATUS_WORKING_SET_LIMIT_RANGE
;
2273 /* Find the view containing the address */
2275 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2276 ptr
= list_head( &views_list
);
2281 size
= (char *)working_set_limit
- alloc_base
;
2285 view
= LIST_ENTRY( ptr
, struct file_view
, entry
);
2286 if ((char *)view
->base
> base
)
2288 size
= (char *)view
->base
- alloc_base
;
2292 if ((char *)view
->base
+ view
->size
> base
)
2294 alloc_base
= view
->base
;
2298 alloc_base
= (char *)view
->base
+ view
->size
;
2299 ptr
= list_next( &views_list
, ptr
);
2302 /* Fill the info structure */
2304 info
->AllocationBase
= alloc_base
;
2305 info
->BaseAddress
= base
;
2306 info
->RegionSize
= size
- (base
- alloc_base
);
2310 if (!wine_mmap_enum_reserved_areas( get_free_mem_state_callback
, info
, 0 ))
2312 /* not in a reserved area at all, pretend it's allocated */
2314 if (base
>= (char *)address_space_start
)
2316 info
->State
= MEM_RESERVE
;
2317 info
->Protect
= PAGE_NOACCESS
;
2318 info
->AllocationProtect
= PAGE_NOACCESS
;
2319 info
->Type
= MEM_PRIVATE
;
2324 info
->State
= MEM_FREE
;
2325 info
->Protect
= PAGE_NOACCESS
;
2326 info
->AllocationBase
= 0;
2327 info
->AllocationProtect
= 0;
2335 SIZE_T range_size
= get_committed_size( view
, base
, &vprot
);
2337 info
->State
= (vprot
& VPROT_COMMITTED
) ? MEM_COMMIT
: MEM_RESERVE
;
2338 info
->Protect
= (vprot
& VPROT_COMMITTED
) ? VIRTUAL_GetWin32Prot( vprot
) : 0;
2339 info
->AllocationBase
= alloc_base
;
2340 info
->AllocationProtect
= VIRTUAL_GetWin32Prot( view
->protect
);
2341 if (view
->protect
& VPROT_IMAGE
) info
->Type
= MEM_IMAGE
;
2342 else if (view
->protect
& VPROT_VALLOC
) info
->Type
= MEM_PRIVATE
;
2343 else info
->Type
= MEM_MAPPED
;
2344 for (size
= base
- alloc_base
; size
< base
+ range_size
- alloc_base
; size
+= page_size
)
2345 if ((view
->prot
[size
>> page_shift
] ^ vprot
) & ~VPROT_WRITEWATCH
) break;
2346 info
->RegionSize
= size
- (base
- alloc_base
);
2348 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2350 if (res_len
) *res_len
= sizeof(*info
);
2351 return STATUS_SUCCESS
;
2355 /***********************************************************************
2356 * NtLockVirtualMemory (NTDLL.@)
2357 * ZwLockVirtualMemory (NTDLL.@)
2359 NTSTATUS WINAPI
NtLockVirtualMemory( HANDLE process
, PVOID
*addr
, SIZE_T
*size
, ULONG unknown
)
2361 NTSTATUS status
= STATUS_SUCCESS
;
2363 if (process
!= NtCurrentProcess())
2366 apc_result_t result
;
2368 memset( &call
, 0, sizeof(call
) );
2370 call
.virtual_lock
.type
= APC_VIRTUAL_LOCK
;
2371 call
.virtual_lock
.addr
= wine_server_client_ptr( *addr
);
2372 call
.virtual_lock
.size
= *size
;
2373 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
2374 if (status
!= STATUS_SUCCESS
) return status
;
2376 if (result
.virtual_lock
.status
== STATUS_SUCCESS
)
2378 *addr
= wine_server_get_ptr( result
.virtual_lock
.addr
);
2379 *size
= result
.virtual_lock
.size
;
2381 return result
.virtual_lock
.status
;
2384 *size
= ROUND_SIZE( *addr
, *size
);
2385 *addr
= ROUND_ADDR( *addr
, page_mask
);
2387 if (mlock( *addr
, *size
)) status
= STATUS_ACCESS_DENIED
;
2392 /***********************************************************************
2393 * NtUnlockVirtualMemory (NTDLL.@)
2394 * ZwUnlockVirtualMemory (NTDLL.@)
2396 NTSTATUS WINAPI
NtUnlockVirtualMemory( HANDLE process
, PVOID
*addr
, SIZE_T
*size
, ULONG unknown
)
2398 NTSTATUS status
= STATUS_SUCCESS
;
2400 if (process
!= NtCurrentProcess())
2403 apc_result_t result
;
2405 memset( &call
, 0, sizeof(call
) );
2407 call
.virtual_unlock
.type
= APC_VIRTUAL_UNLOCK
;
2408 call
.virtual_unlock
.addr
= wine_server_client_ptr( *addr
);
2409 call
.virtual_unlock
.size
= *size
;
2410 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
2411 if (status
!= STATUS_SUCCESS
) return status
;
2413 if (result
.virtual_unlock
.status
== STATUS_SUCCESS
)
2415 *addr
= wine_server_get_ptr( result
.virtual_unlock
.addr
);
2416 *size
= result
.virtual_unlock
.size
;
2418 return result
.virtual_unlock
.status
;
2421 *size
= ROUND_SIZE( *addr
, *size
);
2422 *addr
= ROUND_ADDR( *addr
, page_mask
);
2424 if (munlock( *addr
, *size
)) status
= STATUS_ACCESS_DENIED
;
2429 /***********************************************************************
2430 * NtCreateSection (NTDLL.@)
2431 * ZwCreateSection (NTDLL.@)
2433 NTSTATUS WINAPI
NtCreateSection( HANDLE
*handle
, ACCESS_MASK access
, const OBJECT_ATTRIBUTES
*attr
,
2434 const LARGE_INTEGER
*size
, ULONG protect
,
2435 ULONG sec_flags
, HANDLE file
)
2439 DWORD len
= (attr
&& attr
->ObjectName
) ? attr
->ObjectName
->Length
: 0;
2440 struct security_descriptor
*sd
= NULL
;
2441 struct object_attributes objattr
;
2443 /* Check parameters */
2445 if (len
> MAX_PATH
*sizeof(WCHAR
)) return STATUS_NAME_TOO_LONG
;
2447 if ((ret
= get_vprot_flags( protect
, &vprot
, sec_flags
& SEC_IMAGE
))) return ret
;
2449 objattr
.rootdir
= wine_server_obj_handle( attr
? attr
->RootDirectory
: 0 );
2451 objattr
.name_len
= len
;
2454 ret
= NTDLL_create_struct_sd( attr
->SecurityDescriptor
, &sd
, &objattr
.sd_len
);
2455 if (ret
!= STATUS_SUCCESS
) return ret
;
2458 if (!(sec_flags
& SEC_RESERVE
)) vprot
|= VPROT_COMMITTED
;
2459 if (sec_flags
& SEC_NOCACHE
) vprot
|= VPROT_NOCACHE
;
2460 if (sec_flags
& SEC_IMAGE
) vprot
|= VPROT_IMAGE
;
2462 /* Create the server object */
2464 SERVER_START_REQ( create_mapping
)
2466 req
->access
= access
;
2467 req
->attributes
= (attr
) ? attr
->Attributes
: 0;
2468 req
->file_handle
= wine_server_obj_handle( file
);
2469 req
->size
= size
? size
->QuadPart
: 0;
2470 req
->protect
= vprot
;
2471 wine_server_add_data( req
, &objattr
, sizeof(objattr
) );
2472 if (objattr
.sd_len
) wine_server_add_data( req
, sd
, objattr
.sd_len
);
2473 if (len
) wine_server_add_data( req
, attr
->ObjectName
->Buffer
, len
);
2474 ret
= wine_server_call( req
);
2475 *handle
= wine_server_ptr_handle( reply
->handle
);
2479 NTDLL_free_struct_sd( sd
);
2485 /***********************************************************************
2486 * NtOpenSection (NTDLL.@)
2487 * ZwOpenSection (NTDLL.@)
2489 NTSTATUS WINAPI
NtOpenSection( HANDLE
*handle
, ACCESS_MASK access
, const OBJECT_ATTRIBUTES
*attr
)
2492 DWORD len
= attr
->ObjectName
->Length
;
2494 if (len
> MAX_PATH
*sizeof(WCHAR
)) return STATUS_NAME_TOO_LONG
;
2496 SERVER_START_REQ( open_mapping
)
2498 req
->access
= access
;
2499 req
->attributes
= attr
->Attributes
;
2500 req
->rootdir
= wine_server_obj_handle( attr
->RootDirectory
);
2501 wine_server_add_data( req
, attr
->ObjectName
->Buffer
, len
);
2502 if (!(ret
= wine_server_call( req
))) *handle
= wine_server_ptr_handle( reply
->handle
);
2509 /***********************************************************************
2510 * NtMapViewOfSection (NTDLL.@)
2511 * ZwMapViewOfSection (NTDLL.@)
2513 NTSTATUS WINAPI
NtMapViewOfSection( HANDLE handle
, HANDLE process
, PVOID
*addr_ptr
, ULONG zero_bits
,
2514 SIZE_T commit_size
, const LARGE_INTEGER
*offset_ptr
, SIZE_T
*size_ptr
,
2515 SECTION_INHERIT inherit
, ULONG alloc_type
, ULONG protect
)
2518 mem_size_t full_size
;
2520 SIZE_T size
, mask
= get_mask( zero_bits
);
2521 int unix_handle
= -1, needs_close
;
2522 unsigned int map_vprot
, vprot
;
2524 struct file_view
*view
;
2526 HANDLE dup_mapping
, shared_file
;
2527 LARGE_INTEGER offset
;
2530 offset
.QuadPart
= offset_ptr
? offset_ptr
->QuadPart
: 0;
2532 TRACE("handle=%p process=%p addr=%p off=%x%08x size=%lx access=%x\n",
2533 handle
, process
, *addr_ptr
, offset
.u
.HighPart
, offset
.u
.LowPart
, *size_ptr
, protect
);
2535 /* Check parameters */
2537 if ((offset
.u
.LowPart
& mask
) || (*addr_ptr
&& ((UINT_PTR
)*addr_ptr
& mask
)))
2538 return STATUS_INVALID_PARAMETER
;
2543 access
= SECTION_MAP_READ
;
2545 case PAGE_READWRITE
:
2546 case PAGE_EXECUTE_READWRITE
:
2547 access
= SECTION_MAP_WRITE
;
2550 case PAGE_WRITECOPY
:
2552 case PAGE_EXECUTE_READ
:
2553 case PAGE_EXECUTE_WRITECOPY
:
2554 access
= SECTION_MAP_READ
;
2557 return STATUS_INVALID_PAGE_PROTECTION
;
2560 if (process
!= NtCurrentProcess())
2563 apc_result_t result
;
2565 memset( &call
, 0, sizeof(call
) );
2567 call
.map_view
.type
= APC_MAP_VIEW
;
2568 call
.map_view
.handle
= wine_server_obj_handle( handle
);
2569 call
.map_view
.addr
= wine_server_client_ptr( *addr_ptr
);
2570 call
.map_view
.size
= *size_ptr
;
2571 call
.map_view
.offset
= offset
.QuadPart
;
2572 call
.map_view
.zero_bits
= zero_bits
;
2573 call
.map_view
.alloc_type
= alloc_type
;
2574 call
.map_view
.prot
= protect
;
2575 res
= NTDLL_queue_process_apc( process
, &call
, &result
);
2576 if (res
!= STATUS_SUCCESS
) return res
;
2578 if ((NTSTATUS
)result
.map_view
.status
>= 0)
2580 *addr_ptr
= wine_server_get_ptr( result
.map_view
.addr
);
2581 *size_ptr
= result
.map_view
.size
;
2583 return result
.map_view
.status
;
2586 SERVER_START_REQ( get_mapping_info
)
2588 req
->handle
= wine_server_obj_handle( handle
);
2589 req
->access
= access
;
2590 res
= wine_server_call( req
);
2591 map_vprot
= reply
->protect
;
2592 base
= wine_server_get_ptr( reply
->base
);
2593 full_size
= reply
->size
;
2594 header_size
= reply
->header_size
;
2595 dup_mapping
= wine_server_ptr_handle( reply
->mapping
);
2596 shared_file
= wine_server_ptr_handle( reply
->shared_file
);
2597 if ((ULONG_PTR
)base
!= reply
->base
) base
= NULL
;
2600 if (res
) return res
;
2602 if ((res
= server_get_unix_fd( handle
, 0, &unix_handle
, &needs_close
, NULL
, NULL
))) goto done
;
2604 if (map_vprot
& VPROT_IMAGE
)
2607 if (size
!= full_size
) /* truncated */
2609 WARN( "Modules larger than 4Gb (%s) not supported\n", wine_dbgstr_longlong(full_size
) );
2610 res
= STATUS_INVALID_PARAMETER
;
2615 int shared_fd
, shared_needs_close
;
2617 if ((res
= server_get_unix_fd( shared_file
, FILE_READ_DATA
|FILE_WRITE_DATA
,
2618 &shared_fd
, &shared_needs_close
, NULL
, NULL
))) goto done
;
2619 res
= map_image( handle
, unix_handle
, base
, size
, mask
, header_size
,
2620 shared_fd
, dup_mapping
, map_vprot
, addr_ptr
);
2621 if (shared_needs_close
) close( shared_fd
);
2622 NtClose( shared_file
);
2626 res
= map_image( handle
, unix_handle
, base
, size
, mask
, header_size
,
2627 -1, dup_mapping
, map_vprot
, addr_ptr
);
2629 if (needs_close
) close( unix_handle
);
2630 if (res
>= 0) *size_ptr
= size
;
2634 res
= STATUS_INVALID_PARAMETER
;
2635 if (offset
.QuadPart
>= full_size
) goto done
;
2638 if (*size_ptr
> full_size
- offset
.QuadPart
) goto done
;
2639 size
= ROUND_SIZE( offset
.u
.LowPart
, *size_ptr
);
2640 if (size
< *size_ptr
) goto done
; /* wrap-around */
2644 size
= full_size
- offset
.QuadPart
;
2645 if (size
!= full_size
- offset
.QuadPart
) /* truncated */
2647 WARN( "Files larger than 4Gb (%s) not supported on this platform\n",
2648 wine_dbgstr_longlong(full_size
) );
2653 /* Reserve a properly aligned area */
2655 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2657 get_vprot_flags( protect
, &vprot
, map_vprot
& VPROT_IMAGE
);
2658 vprot
|= (map_vprot
& VPROT_COMMITTED
);
2659 res
= map_view( &view
, *addr_ptr
, size
, mask
, FALSE
, vprot
);
2662 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2668 TRACE("handle=%p size=%lx offset=%x%08x\n",
2669 handle
, size
, offset
.u
.HighPart
, offset
.u
.LowPart
);
2671 res
= map_file_into_view( view
, unix_handle
, 0, size
, offset
.QuadPart
, vprot
, !dup_mapping
);
2672 if (res
== STATUS_SUCCESS
)
2674 *addr_ptr
= view
->base
;
2676 view
->mapping
= dup_mapping
;
2677 view
->map_protect
= map_vprot
;
2678 dup_mapping
= 0; /* don't close it */
2682 ERR( "map_file_into_view %p %lx %x%08x failed\n",
2683 view
->base
, size
, offset
.u
.HighPart
, offset
.u
.LowPart
);
2684 delete_view( view
);
2687 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2690 if (dup_mapping
) NtClose( dup_mapping
);
2691 if (needs_close
) close( unix_handle
);
2696 /***********************************************************************
2697 * NtUnmapViewOfSection (NTDLL.@)
2698 * ZwUnmapViewOfSection (NTDLL.@)
2700 NTSTATUS WINAPI
NtUnmapViewOfSection( HANDLE process
, PVOID addr
)
2702 struct file_view
*view
;
2703 NTSTATUS status
= STATUS_NOT_MAPPED_VIEW
;
2705 void *base
= ROUND_ADDR( addr
, page_mask
);
2707 if (process
!= NtCurrentProcess())
2710 apc_result_t result
;
2712 memset( &call
, 0, sizeof(call
) );
2714 call
.unmap_view
.type
= APC_UNMAP_VIEW
;
2715 call
.unmap_view
.addr
= wine_server_client_ptr( addr
);
2716 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
2717 if (status
== STATUS_SUCCESS
) status
= result
.unmap_view
.status
;
2721 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2722 if ((view
= VIRTUAL_FindView( base
, 0 )) && (base
== view
->base
) && !(view
->protect
& VPROT_VALLOC
))
2724 delete_view( view
);
2725 status
= STATUS_SUCCESS
;
2727 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2732 /***********************************************************************
2733 * NtFlushVirtualMemory (NTDLL.@)
2734 * ZwFlushVirtualMemory (NTDLL.@)
2736 NTSTATUS WINAPI
NtFlushVirtualMemory( HANDLE process
, LPCVOID
*addr_ptr
,
2737 SIZE_T
*size_ptr
, ULONG unknown
)
2739 struct file_view
*view
;
2740 NTSTATUS status
= STATUS_SUCCESS
;
2742 void *addr
= ROUND_ADDR( *addr_ptr
, page_mask
);
2744 if (process
!= NtCurrentProcess())
2747 apc_result_t result
;
2749 memset( &call
, 0, sizeof(call
) );
2751 call
.virtual_flush
.type
= APC_VIRTUAL_FLUSH
;
2752 call
.virtual_flush
.addr
= wine_server_client_ptr( addr
);
2753 call
.virtual_flush
.size
= *size_ptr
;
2754 status
= NTDLL_queue_process_apc( process
, &call
, &result
);
2755 if (status
!= STATUS_SUCCESS
) return status
;
2757 if (result
.virtual_flush
.status
== STATUS_SUCCESS
)
2759 *addr_ptr
= wine_server_get_ptr( result
.virtual_flush
.addr
);
2760 *size_ptr
= result
.virtual_flush
.size
;
2762 return result
.virtual_flush
.status
;
2765 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2766 if (!(view
= VIRTUAL_FindView( addr
, *size_ptr
))) status
= STATUS_INVALID_PARAMETER
;
2769 if (!*size_ptr
) *size_ptr
= view
->size
;
2771 if (msync( addr
, *size_ptr
, MS_SYNC
)) status
= STATUS_NOT_MAPPED_DATA
;
2773 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2778 /***********************************************************************
2779 * NtGetWriteWatch (NTDLL.@)
2780 * ZwGetWriteWatch (NTDLL.@)
2782 NTSTATUS WINAPI
NtGetWriteWatch( HANDLE process
, ULONG flags
, PVOID base
, SIZE_T size
, PVOID
*addresses
,
2783 ULONG_PTR
*count
, ULONG
*granularity
)
2785 struct file_view
*view
;
2786 NTSTATUS status
= STATUS_SUCCESS
;
2789 size
= ROUND_SIZE( base
, size
);
2790 base
= ROUND_ADDR( base
, page_mask
);
2792 if (!count
|| !granularity
) return STATUS_ACCESS_VIOLATION
;
2793 if (!*count
|| !size
) return STATUS_INVALID_PARAMETER
;
2794 if (flags
& ~WRITE_WATCH_FLAG_RESET
) return STATUS_INVALID_PARAMETER
;
2796 if (!addresses
) return STATUS_ACCESS_VIOLATION
;
2798 TRACE( "%p %x %p-%p %p %lu\n", process
, flags
, base
, (char *)base
+ size
,
2799 addresses
, *count
);
2801 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2803 if ((view
= VIRTUAL_FindView( base
, size
)) && (view
->protect
& VPROT_WRITEWATCH
))
2807 char *end
= addr
+ size
;
2809 while (pos
< *count
&& addr
< end
)
2811 BYTE prot
= view
->prot
[(addr
- (char *)view
->base
) >> page_shift
];
2812 if (!(prot
& VPROT_WRITEWATCH
)) addresses
[pos
++] = addr
;
2815 if (flags
& WRITE_WATCH_FLAG_RESET
) reset_write_watches( view
, base
, addr
- (char *)base
);
2817 *granularity
= page_size
;
2819 else status
= STATUS_INVALID_PARAMETER
;
2821 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2826 /***********************************************************************
2827 * NtResetWriteWatch (NTDLL.@)
2828 * ZwResetWriteWatch (NTDLL.@)
2830 NTSTATUS WINAPI
NtResetWriteWatch( HANDLE process
, PVOID base
, SIZE_T size
)
2832 struct file_view
*view
;
2833 NTSTATUS status
= STATUS_SUCCESS
;
2836 size
= ROUND_SIZE( base
, size
);
2837 base
= ROUND_ADDR( base
, page_mask
);
2839 TRACE( "%p %p-%p\n", process
, base
, (char *)base
+ size
);
2841 if (!size
) return STATUS_INVALID_PARAMETER
;
2843 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2845 if ((view
= VIRTUAL_FindView( base
, size
)) && (view
->protect
& VPROT_WRITEWATCH
))
2846 reset_write_watches( view
, base
, size
);
2848 status
= STATUS_INVALID_PARAMETER
;
2850 server_leave_uninterrupted_section( &csVirtual
, &sigset
);
2855 /***********************************************************************
2856 * NtReadVirtualMemory (NTDLL.@)
2857 * ZwReadVirtualMemory (NTDLL.@)
2859 NTSTATUS WINAPI
NtReadVirtualMemory( HANDLE process
, const void *addr
, void *buffer
,
2860 SIZE_T size
, SIZE_T
*bytes_read
)
2864 if (virtual_check_buffer_for_write( buffer
, size
))
2866 SERVER_START_REQ( read_process_memory
)
2868 req
->handle
= wine_server_obj_handle( process
);
2869 req
->addr
= wine_server_client_ptr( addr
);
2870 wine_server_set_reply( req
, buffer
, size
);
2871 if ((status
= wine_server_call( req
))) size
= 0;
2877 status
= STATUS_ACCESS_VIOLATION
;
2880 if (bytes_read
) *bytes_read
= size
;
2885 /***********************************************************************
2886 * NtWriteVirtualMemory (NTDLL.@)
2887 * ZwWriteVirtualMemory (NTDLL.@)
2889 NTSTATUS WINAPI
NtWriteVirtualMemory( HANDLE process
, void *addr
, const void *buffer
,
2890 SIZE_T size
, SIZE_T
*bytes_written
)
2894 if (virtual_check_buffer_for_read( buffer
, size
))
2896 SERVER_START_REQ( write_process_memory
)
2898 req
->handle
= wine_server_obj_handle( process
);
2899 req
->addr
= wine_server_client_ptr( addr
);
2900 wine_server_add_data( req
, buffer
, size
);
2901 if ((status
= wine_server_call( req
))) size
= 0;
2907 status
= STATUS_PARTIAL_COPY
;
2910 if (bytes_written
) *bytes_written
= size
;
2915 /***********************************************************************
2916 * NtAreMappedFilesTheSame (NTDLL.@)
2917 * ZwAreMappedFilesTheSame (NTDLL.@)
2919 NTSTATUS WINAPI
NtAreMappedFilesTheSame(PVOID addr1
, PVOID addr2
)
2921 struct file_view
*view1
, *view2
;
2922 struct stat st1
, st2
;
2926 TRACE("%p %p\n", addr1
, addr2
);
2928 server_enter_uninterrupted_section( &csVirtual
, &sigset
);
2930 view1
= VIRTUAL_FindView( addr1
, 0 );
2931 view2
= VIRTUAL_FindView( addr2
, 0 );
2933 if (!view1
|| !view2
)
2934 status
= STATUS_INVALID_ADDRESS
;
2935 else if ((view1
->protect
& VPROT_VALLOC
) || (view2
->protect
& VPROT_VALLOC
))
2936 status
= STATUS_CONFLICTING_ADDRESSES
;
2937 else if (!(view1
->protect
& VPROT_IMAGE
) || !(view2
->protect
& VPROT_IMAGE
))
2938 status
= STATUS_NOT_SAME_DEVICE
;
2939 else if (view1
== view2
)
2940 status
= STATUS_SUCCESS
;
2941 else if (!stat_mapping_file( view1
, &st1
) && !stat_mapping_file( view2
, &st2
) &&
2942 st1
.st_dev
== st2
.st_dev
&& st1
.st_ino
== st2
.st_ino
)
2943 status
= STATUS_SUCCESS
;
2945 status
= STATUS_NOT_SAME_DEVICE
;
2947 server_leave_uninterrupted_section( &csVirtual
, &sigset
);