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/list.h"
57 #include "wine/debug.h"
58 #include "ntdll_misc.h"
60 WINE_DEFAULT_DEBUG_CHANNEL(virtual);
61 WINE_DECLARE_DEBUG_CHANNEL(module);
68 #define MAP_NORESERVE 0
72 typedef struct file_view
74 struct list entry; /* Entry in global view list */
75 void *base; /* Base address */
76 size_t size; /* Size in bytes */
77 HANDLE mapping; /* Handle to the file mapping */
78 unsigned int protect; /* Protection for all pages at allocation time */
79 BYTE prot[1]; /* Protection byte for each page */
83 /* Conversion from VPROT_* to Win32 flags */
84 static const BYTE VIRTUAL_Win32Flags[16] =
86 PAGE_NOACCESS, /* 0 */
87 PAGE_READONLY, /* READ */
88 PAGE_READWRITE, /* WRITE */
89 PAGE_READWRITE, /* READ | WRITE */
90 PAGE_EXECUTE, /* EXEC */
91 PAGE_EXECUTE_READ, /* READ | EXEC */
92 PAGE_EXECUTE_READWRITE, /* WRITE | EXEC */
93 PAGE_EXECUTE_READWRITE, /* READ | WRITE | EXEC */
94 PAGE_WRITECOPY, /* WRITECOPY */
95 PAGE_WRITECOPY, /* READ | WRITECOPY */
96 PAGE_WRITECOPY, /* WRITE | WRITECOPY */
97 PAGE_WRITECOPY, /* READ | WRITE | WRITECOPY */
98 PAGE_EXECUTE_WRITECOPY, /* EXEC | WRITECOPY */
99 PAGE_EXECUTE_WRITECOPY, /* READ | EXEC | WRITECOPY */
100 PAGE_EXECUTE_WRITECOPY, /* WRITE | EXEC | WRITECOPY */
101 PAGE_EXECUTE_WRITECOPY /* READ | WRITE | EXEC | WRITECOPY */
104 static struct list views_list = LIST_INIT(views_list);
106 static RTL_CRITICAL_SECTION csVirtual;
107 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
110 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
111 0, 0, { (DWORD_PTR)(__FILE__ ": csVirtual") }
113 static RTL_CRITICAL_SECTION csVirtual = { &critsect_debug, -1, 0, 0, 0, 0 };
116 /* These are always the same on an i386, and it will be faster this way */
117 # define page_mask 0xfff
118 # define page_shift 12
119 # define page_size 0x1000
120 /* Note: these are Windows limits, you cannot change them. */
121 static void *address_space_limit = (void *)0xc0000000; /* top of the total available address space */
122 static void *user_space_limit = (void *)0x7fff0000; /* top of the user address space */
124 static UINT page_shift;
125 static UINT page_size;
126 static UINT_PTR page_mask;
127 static void * const address_space_limit = 0; /* no limit needed on other platforms */
128 static void * const user_space_limit = 0; /* no limit needed on other platforms */
129 #endif /* __i386__ */
131 #define ROUND_ADDR(addr,mask) \
132 ((void *)((UINT_PTR)(addr) & ~(UINT_PTR)(mask)))
134 #define ROUND_SIZE(addr,size) \
135 (((UINT)(size) + ((UINT_PTR)(addr) & page_mask) + page_mask) & ~page_mask)
137 #define VIRTUAL_DEBUG_DUMP_VIEW(view) \
138 do { if (TRACE_ON(virtual)) VIRTUAL_DumpView(view); } while (0)
140 #define VIRTUAL_HEAP_SIZE (4*1024*1024)
142 static HANDLE virtual_heap;
143 static void *preload_reserve_start;
144 static void *preload_reserve_end;
145 static int use_locks;
146 static int force_exec_prot; /* whether to force PROT_EXEC on all PROT_READ mmaps */
149 /***********************************************************************
152 static const char *VIRTUAL_GetProtStr( BYTE prot )
154 static char buffer[6];
155 buffer[0] = (prot & VPROT_COMMITTED) ? 'c' : '-';
156 buffer[1] = (prot & VPROT_GUARD) ? 'g' : '-';
157 buffer[2] = (prot & VPROT_READ) ? 'r' : '-';
158 buffer[3] = (prot & VPROT_WRITECOPY) ? 'W' : ((prot & VPROT_WRITE) ? 'w' : '-');
159 buffer[4] = (prot & VPROT_EXEC) ? 'x' : '-';
165 /***********************************************************************
166 * VIRTUAL_GetUnixProt
168 * Convert page protections to protection for mmap/mprotect.
170 static int VIRTUAL_GetUnixProt( BYTE vprot )
173 if ((vprot & VPROT_COMMITTED) && !(vprot & VPROT_GUARD))
175 if (vprot & VPROT_READ) prot |= PROT_READ;
176 if (vprot & VPROT_WRITE) prot |= PROT_WRITE;
177 if (vprot & VPROT_WRITECOPY) prot |= PROT_WRITE;
178 if (vprot & VPROT_EXEC) prot |= PROT_EXEC;
180 if (!prot) prot = PROT_NONE;
185 /***********************************************************************
188 static void VIRTUAL_DumpView( FILE_VIEW *view )
191 char *addr = view->base;
192 BYTE prot = view->prot[0];
194 TRACE( "View: %p - %p", addr, addr + view->size - 1 );
195 if (view->protect & VPROT_SYSTEM)
196 TRACE( " (system)\n" );
197 else if (view->protect & VPROT_VALLOC)
198 TRACE( " (valloc)\n" );
199 else if (view->mapping)
200 TRACE( " %p\n", view->mapping );
202 TRACE( " (anonymous)\n");
204 for (count = i = 1; i < view->size >> page_shift; i++, count++)
206 if (view->prot[i] == prot) continue;
207 TRACE( " %p - %p %s\n",
208 addr, addr + (count << page_shift) - 1, VIRTUAL_GetProtStr(prot) );
209 addr += (count << page_shift);
210 prot = view->prot[i];
214 TRACE( " %p - %p %s\n",
215 addr, addr + (count << page_shift) - 1, VIRTUAL_GetProtStr(prot) );
219 /***********************************************************************
223 static void VIRTUAL_Dump(void)
226 struct file_view *view;
228 TRACE( "Dump of all virtual memory views:\n" );
229 server_enter_uninterrupted_section( &csVirtual, &sigset );
230 LIST_FOR_EACH_ENTRY( view, &views_list, FILE_VIEW, entry )
232 VIRTUAL_DumpView( view );
234 server_leave_uninterrupted_section( &csVirtual, &sigset );
239 /***********************************************************************
242 * Find the view containing a given address. The csVirtual section must be held by caller.
251 static struct file_view *VIRTUAL_FindView( const void *addr )
253 struct file_view *view;
255 LIST_FOR_EACH_ENTRY( view, &views_list, struct file_view, entry )
257 if (view->base > addr) break;
258 if ((const char*)view->base + view->size > (const char*)addr) return view;
264 /***********************************************************************
267 static inline UINT_PTR get_mask( ULONG zero_bits )
269 if (!zero_bits) return 0xffff; /* allocations are aligned to 64K by default */
270 if (zero_bits < page_shift) zero_bits = page_shift;
271 return (1 << zero_bits) - 1;
275 /***********************************************************************
278 * Find the first view overlapping at least part of the specified range.
279 * The csVirtual section must be held by caller.
281 static struct file_view *find_view_range( const void *addr, size_t size )
283 struct file_view *view;
285 LIST_FOR_EACH_ENTRY( view, &views_list, struct file_view, entry )
287 if ((const char *)view->base >= (const char *)addr + size) break;
288 if ((const char *)view->base + view->size > (const char *)addr) return view;
294 /***********************************************************************
297 * Find a free area between views inside the specified range.
298 * The csVirtual section must be held by caller.
300 static void *find_free_area( void *base, void *end, size_t size, size_t mask, int top_down )
307 start = ROUND_ADDR( (char *)end - size, mask );
308 if (start >= end || start < base) return NULL;
310 for (ptr = views_list.prev; ptr != &views_list; ptr = ptr->prev)
312 struct file_view *view = LIST_ENTRY( ptr, struct file_view, entry );
314 if ((char *)view->base + view->size <= (char *)start) break;
315 if ((char *)view->base >= (char *)start + size) continue;
316 start = ROUND_ADDR( (char *)view->base - size, mask );
317 /* stop if remaining space is not large enough */
318 if (!start || start >= end || start < base) return NULL;
323 start = ROUND_ADDR( (char *)base + mask, mask );
324 if (start >= end || (char *)end - (char *)start < size) return NULL;
326 for (ptr = views_list.next; ptr != &views_list; ptr = ptr->next)
328 struct file_view *view = LIST_ENTRY( ptr, struct file_view, entry );
330 if ((char *)view->base >= (char *)start + size) break;
331 if ((char *)view->base + view->size <= (char *)start) continue;
332 start = ROUND_ADDR( (char *)view->base + view->size + mask, mask );
333 /* stop if remaining space is not large enough */
334 if (!start || start >= end || (char *)end - (char *)start < size) return NULL;
341 /***********************************************************************
344 * Add a reserved area to the list maintained by libwine.
345 * The csVirtual section must be held by caller.
347 static void add_reserved_area( void *addr, size_t size )
349 TRACE( "adding %p-%p\n", addr, (char *)addr + size );
351 if (addr < user_space_limit)
353 /* unmap the part of the area that is below the limit */
354 assert( (char *)addr + size > (char *)user_space_limit );
355 munmap( addr, (char *)user_space_limit - (char *)addr );
356 size -= (char *)user_space_limit - (char *)addr;
357 addr = user_space_limit;
359 /* blow away existing mappings */
360 wine_anon_mmap( addr, size, PROT_NONE, MAP_NORESERVE | MAP_FIXED );
361 wine_mmap_add_reserved_area( addr, size );
365 /***********************************************************************
368 * Check if an address range goes beyond a given limit.
370 static inline int is_beyond_limit( const void *addr, size_t size, const void *limit )
372 return (limit && (addr >= limit || (const char *)addr + size > (const char *)limit));
376 /***********************************************************************
379 * Unmap an area, or simply replace it by an empty mapping if it is
380 * in a reserved area. The csVirtual section must be held by caller.
382 static inline void unmap_area( void *addr, size_t size )
384 if (wine_mmap_is_in_reserved_area( addr, size ))
385 wine_anon_mmap( addr, size, PROT_NONE, MAP_NORESERVE | MAP_FIXED );
386 else if (is_beyond_limit( addr, size, user_space_limit ))
387 add_reserved_area( addr, size );
389 munmap( addr, size );
393 /***********************************************************************
396 * Deletes a view. The csVirtual section must be held by caller.
398 static void delete_view( struct file_view *view ) /* [in] View */
400 if (!(view->protect & VPROT_SYSTEM)) unmap_area( view->base, view->size );
401 list_remove( &view->entry );
402 if (view->mapping) NtClose( view->mapping );
403 RtlFreeHeap( virtual_heap, 0, view );
407 /***********************************************************************
410 * Create a view. The csVirtual section must be held by caller.
412 static NTSTATUS create_view( struct file_view **view_ret, void *base, size_t size, unsigned int vprot )
414 struct file_view *view;
416 int unix_prot = VIRTUAL_GetUnixProt( vprot );
418 assert( !((UINT_PTR)base & page_mask) );
419 assert( !(size & page_mask) );
421 /* Create the view structure */
423 if (!(view = RtlAllocateHeap( virtual_heap, 0, sizeof(*view) + (size >> page_shift) - 1 )))
425 FIXME( "out of memory in virtual heap for %p-%p\n", base, (char *)base + size );
426 return STATUS_NO_MEMORY;
432 view->protect = vprot;
433 memset( view->prot, vprot, size >> page_shift );
435 /* Insert it in the linked list */
437 LIST_FOR_EACH( ptr, &views_list )
439 struct file_view *next = LIST_ENTRY( ptr, struct file_view, entry );
440 if (next->base > base) break;
442 list_add_before( ptr, &view->entry );
444 /* Check for overlapping views. This can happen if the previous view
445 * was a system view that got unmapped behind our back. In that case
446 * we recover by simply deleting it. */
448 if ((ptr = list_prev( &views_list, &view->entry )) != NULL)
450 struct file_view *prev = LIST_ENTRY( ptr, struct file_view, entry );
451 if ((char *)prev->base + prev->size > (char *)base)
453 TRACE( "overlapping prev view %p-%p for %p-%p\n",
454 prev->base, (char *)prev->base + prev->size,
455 base, (char *)base + view->size );
456 assert( prev->protect & VPROT_SYSTEM );
460 if ((ptr = list_next( &views_list, &view->entry )) != NULL)
462 struct file_view *next = LIST_ENTRY( ptr, struct file_view, entry );
463 if ((char *)base + view->size > (char *)next->base)
465 TRACE( "overlapping next view %p-%p for %p-%p\n",
466 next->base, (char *)next->base + next->size,
467 base, (char *)base + view->size );
468 assert( next->protect & VPROT_SYSTEM );
474 VIRTUAL_DEBUG_DUMP_VIEW( view );
476 if (force_exec_prot && !(vprot & VPROT_NOEXEC) && (unix_prot & PROT_READ) && !(unix_prot & PROT_EXEC))
478 TRACE( "forcing exec permission on %p-%p\n", base, (char *)base + size - 1 );
479 mprotect( base, size, unix_prot | PROT_EXEC );
481 return STATUS_SUCCESS;
485 /***********************************************************************
486 * VIRTUAL_GetWin32Prot
488 * Convert page protections to Win32 flags.
490 static DWORD VIRTUAL_GetWin32Prot( BYTE vprot )
492 DWORD ret = VIRTUAL_Win32Flags[vprot & 0x0f];
493 if (vprot & VPROT_NOCACHE) ret |= PAGE_NOCACHE;
494 if (vprot & VPROT_GUARD) ret |= PAGE_GUARD;
499 /***********************************************************************
502 * Build page protections from Win32 flags.
505 * protect [I] Win32 protection flags
508 * Value of page protection flags
510 static BYTE VIRTUAL_GetProt( DWORD protect )
514 switch(protect & 0xff)
520 vprot = VPROT_READ | VPROT_WRITE;
523 /* MSDN CreateFileMapping() states that if PAGE_WRITECOPY is given,
524 * that the hFile must have been opened with GENERIC_READ and
525 * GENERIC_WRITE access. This is WRONG as tests show that you
526 * only need GENERIC_READ access (at least for Win9x,
527 * FIXME: what about NT?). Thus, we don't put VPROT_WRITE in
528 * PAGE_WRITECOPY and PAGE_EXECUTE_WRITECOPY.
530 vprot = VPROT_READ | VPROT_WRITECOPY;
535 case PAGE_EXECUTE_READ:
536 vprot = VPROT_EXEC | VPROT_READ;
538 case PAGE_EXECUTE_READWRITE:
539 vprot = VPROT_EXEC | VPROT_READ | VPROT_WRITE;
541 case PAGE_EXECUTE_WRITECOPY:
542 /* See comment for PAGE_WRITECOPY above */
543 vprot = VPROT_EXEC | VPROT_READ | VPROT_WRITECOPY;
550 if (protect & PAGE_GUARD) vprot |= VPROT_GUARD;
551 if (protect & PAGE_NOCACHE) vprot |= VPROT_NOCACHE;
556 /***********************************************************************
559 * Change the protection of a range of pages.
565 static BOOL VIRTUAL_SetProt( FILE_VIEW *view, /* [in] Pointer to view */
566 void *base, /* [in] Starting address */
567 size_t size, /* [in] Size in bytes */
568 BYTE vprot ) /* [in] Protections to use */
570 int unix_prot = VIRTUAL_GetUnixProt(vprot);
573 base, (char *)base + size - 1, VIRTUAL_GetProtStr( vprot ) );
575 /* if setting stack guard pages, store the permissions first, as the guard may be
576 * triggered at any point after mprotect and change the permissions again */
577 if ((vprot & VPROT_GUARD) &&
578 ((char *)base >= (char *)NtCurrentTeb()->DeallocationStack) &&
579 ((char *)base < (char *)NtCurrentTeb()->Tib.StackBase))
581 memset( view->prot + (((char *)base - (char *)view->base) >> page_shift),
582 vprot, size >> page_shift );
583 mprotect( base, size, unix_prot );
584 VIRTUAL_DEBUG_DUMP_VIEW( view );
588 if (force_exec_prot && !(view->protect & VPROT_NOEXEC) &&
589 (unix_prot & PROT_READ) && !(unix_prot & PROT_EXEC))
591 TRACE( "forcing exec permission on %p-%p\n", base, (char *)base + size - 1 );
592 if (!mprotect( base, size, unix_prot | PROT_EXEC )) goto done;
593 /* exec + write may legitimately fail, in that case fall back to write only */
594 if (!(unix_prot & PROT_WRITE)) return FALSE;
597 if (mprotect( base, size, unix_prot )) return FALSE; /* FIXME: last error */
600 memset( view->prot + (((char *)base - (char *)view->base) >> page_shift),
601 vprot, size >> page_shift );
602 VIRTUAL_DEBUG_DUMP_VIEW( view );
607 /***********************************************************************
610 * Release the extra memory while keeping the range starting on the granularity boundary.
612 static inline void *unmap_extra_space( void *ptr, size_t total_size, size_t wanted_size, size_t mask )
614 if ((ULONG_PTR)ptr & mask)
616 size_t extra = mask + 1 - ((ULONG_PTR)ptr & mask);
617 munmap( ptr, extra );
618 ptr = (char *)ptr + extra;
621 if (total_size > wanted_size)
622 munmap( (char *)ptr + wanted_size, total_size - wanted_size );
635 /***********************************************************************
636 * alloc_reserved_area_callback
638 * Try to map some space inside a reserved area. Callback for wine_mmap_enum_reserved_areas.
640 static int alloc_reserved_area_callback( void *start, size_t size, void *arg )
642 static void * const address_space_start = (void *)0x110000;
643 struct alloc_area *alloc = arg;
644 void *end = (char *)start + size;
646 if (start < address_space_start) start = address_space_start;
647 if (user_space_limit && end > user_space_limit) end = user_space_limit;
648 if (start >= end) return 0;
650 /* make sure we don't touch the preloader reserved range */
651 if (preload_reserve_end >= start)
653 if (preload_reserve_end >= end)
655 if (preload_reserve_start <= start) return 0; /* no space in that area */
656 if (preload_reserve_start < end) end = preload_reserve_start;
658 else if (preload_reserve_start <= start) start = preload_reserve_end;
661 /* range is split in two by the preloader reservation, try first part */
662 if ((alloc->result = find_free_area( start, preload_reserve_start, alloc->size,
663 alloc->mask, alloc->top_down )))
665 /* then fall through to try second part */
666 start = preload_reserve_end;
669 if ((alloc->result = find_free_area( start, end, alloc->size, alloc->mask, alloc->top_down )))
676 /***********************************************************************
679 * Create a view and mmap the corresponding memory area.
680 * The csVirtual section must be held by caller.
682 static NTSTATUS map_view( struct file_view **view_ret, void *base, size_t size, size_t mask,
683 int top_down, unsigned int vprot )
690 if (is_beyond_limit( base, size, address_space_limit ))
691 return STATUS_WORKING_SET_LIMIT_RANGE;
693 switch (wine_mmap_is_in_reserved_area( base, size ))
695 case -1: /* partially in a reserved area */
696 return STATUS_CONFLICTING_ADDRESSES;
698 case 0: /* not in a reserved area, do a normal allocation */
699 if ((ptr = wine_anon_mmap( base, size, VIRTUAL_GetUnixProt(vprot), 0 )) == (void *)-1)
701 if (errno == ENOMEM) return STATUS_NO_MEMORY;
702 return STATUS_INVALID_PARAMETER;
706 /* We couldn't get the address we wanted */
707 if (is_beyond_limit( ptr, size, user_space_limit )) add_reserved_area( ptr, size );
708 else munmap( ptr, size );
709 return STATUS_CONFLICTING_ADDRESSES;
714 case 1: /* in a reserved area, make sure the address is available */
715 if (find_view_range( base, size )) return STATUS_CONFLICTING_ADDRESSES;
716 /* replace the reserved area by our mapping */
717 if ((ptr = wine_anon_mmap( base, size, VIRTUAL_GetUnixProt(vprot), MAP_FIXED )) != base)
718 return STATUS_INVALID_PARAMETER;
724 size_t view_size = size + mask + 1;
725 struct alloc_area alloc;
729 alloc.top_down = top_down;
730 if (wine_mmap_enum_reserved_areas( alloc_reserved_area_callback, &alloc, top_down ))
733 TRACE( "got mem in reserved area %p-%p\n", ptr, (char *)ptr + size );
734 if (wine_anon_mmap( ptr, size, VIRTUAL_GetUnixProt(vprot), MAP_FIXED ) != ptr)
735 return STATUS_INVALID_PARAMETER;
741 if ((ptr = wine_anon_mmap( NULL, view_size, VIRTUAL_GetUnixProt(vprot), 0 )) == (void *)-1)
743 if (errno == ENOMEM) return STATUS_NO_MEMORY;
744 return STATUS_INVALID_PARAMETER;
746 TRACE( "got mem with anon mmap %p-%p\n", ptr, (char *)ptr + size );
747 /* if we got something beyond the user limit, unmap it and retry */
748 if (is_beyond_limit( ptr, view_size, user_space_limit )) add_reserved_area( ptr, view_size );
751 ptr = unmap_extra_space( ptr, view_size, size, mask );
754 status = create_view( view_ret, ptr, size, vprot );
755 if (status != STATUS_SUCCESS) unmap_area( ptr, size );
760 /***********************************************************************
763 * Linux kernels before 2.4.x can support non page-aligned offsets, as
764 * long as the offset is aligned to the filesystem block size. This is
765 * a big performance gain so we want to take advantage of it.
767 * However, when we use 64-bit file support this doesn't work because
768 * glibc rejects unaligned offsets. Also glibc 2.1.3 mmap64 is broken
769 * in that it rounds unaligned offsets down to a page boundary. For
770 * these reasons we do a direct system call here.
772 static void *unaligned_mmap( void *addr, size_t length, unsigned int prot,
773 unsigned int flags, int fd, off_t offset )
775 #if defined(linux) && defined(__i386__) && defined(__GNUC__)
776 if (!(offset >> 32) && (offset & page_mask))
791 args.length = length;
795 args.offset = offset;
797 __asm__ __volatile__("push %%ebx\n\t"
802 : "0" (90), /* SYS_mmap */
805 if (ret < 0 && ret > -4096)
813 return mmap( addr, length, prot, flags, fd, offset );
817 /***********************************************************************
820 * Wrapper for mmap() to map a file into a view, falling back to read if mmap fails.
821 * The csVirtual section must be held by caller.
823 static NTSTATUS map_file_into_view( struct file_view *view, int fd, size_t start, size_t size,
824 off_t offset, unsigned int vprot, BOOL removable )
827 int prot = VIRTUAL_GetUnixProt( vprot );
828 BOOL shared_write = (vprot & VPROT_WRITE) != 0;
830 assert( start < view->size );
831 assert( start + size <= view->size );
833 /* only try mmap if media is not removable (or if we require write access) */
834 if (!removable || shared_write)
836 int flags = MAP_FIXED | (shared_write ? MAP_SHARED : MAP_PRIVATE);
838 if (unaligned_mmap( (char *)view->base + start, size, prot, flags, fd, offset ) != (void *)-1)
841 /* mmap() failed; if this is because the file offset is not */
842 /* page-aligned (EINVAL), or because the underlying filesystem */
843 /* does not support mmap() (ENOEXEC,ENODEV), we do it by hand. */
844 if ((errno != ENOEXEC) && (errno != EINVAL) && (errno != ENODEV)) return FILE_GetNtStatus();
845 if (shared_write) /* we cannot fake shared write mappings */
847 if (errno == EINVAL) return STATUS_INVALID_PARAMETER;
848 ERR( "shared writable mmap not supported, broken filesystem?\n" );
849 return STATUS_NOT_SUPPORTED;
853 /* Reserve the memory with an anonymous mmap */
854 ptr = wine_anon_mmap( (char *)view->base + start, size, PROT_READ | PROT_WRITE, MAP_FIXED );
855 if (ptr == (void *)-1) return FILE_GetNtStatus();
856 /* Now read in the file */
857 pread( fd, ptr, size, offset );
858 if (prot != (PROT_READ|PROT_WRITE)) mprotect( ptr, size, prot ); /* Set the right protection */
860 memset( view->prot + (start >> page_shift), vprot, ROUND_SIZE(start,size) >> page_shift );
861 return STATUS_SUCCESS;
865 /***********************************************************************
868 * Decommit some pages of a given view.
869 * The csVirtual section must be held by caller.
871 static NTSTATUS decommit_pages( struct file_view *view, size_t start, size_t size )
873 if (wine_anon_mmap( (char *)view->base + start, size, PROT_NONE, MAP_FIXED ) != (void *)-1)
875 BYTE *p = view->prot + (start >> page_shift);
877 while (size--) *p++ &= ~VPROT_COMMITTED;
878 return STATUS_SUCCESS;
880 return FILE_GetNtStatus();
884 /***********************************************************************
887 * Map an executable (PE format) image into memory.
889 static NTSTATUS map_image( HANDLE hmapping, int fd, char *base, SIZE_T total_size, SIZE_T mask,
890 SIZE_T header_size, int shared_fd, HANDLE dup_mapping, PVOID *addr_ptr )
892 IMAGE_DOS_HEADER *dos;
893 IMAGE_NT_HEADERS *nt;
894 IMAGE_SECTION_HEADER *sec;
895 IMAGE_DATA_DIRECTORY *imports;
896 NTSTATUS status = STATUS_CONFLICTING_ADDRESSES;
901 struct file_view *view = NULL;
902 char *ptr, *header_end;
905 /* zero-map the whole range */
907 server_enter_uninterrupted_section( &csVirtual, &sigset );
909 if (base >= (char *)0x110000) /* make sure the DOS area remains free */
910 status = map_view( &view, base, total_size, mask, FALSE,
911 VPROT_COMMITTED | VPROT_READ | VPROT_EXEC | VPROT_WRITECOPY | VPROT_IMAGE );
913 if (status == STATUS_CONFLICTING_ADDRESSES)
914 status = map_view( &view, NULL, total_size, mask, FALSE,
915 VPROT_COMMITTED | VPROT_READ | VPROT_EXEC | VPROT_WRITECOPY | VPROT_IMAGE );
917 if (status != STATUS_SUCCESS) goto error;
920 TRACE_(module)( "mapped PE file at %p-%p\n", ptr, ptr + total_size );
924 if (fstat( fd, &st ) == -1)
926 status = FILE_GetNtStatus();
929 status = STATUS_INVALID_IMAGE_FORMAT; /* generic error */
930 if (!st.st_size) goto error;
931 header_size = min( header_size, st.st_size );
932 if (map_file_into_view( view, fd, 0, header_size, 0, VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY,
933 !dup_mapping ) != STATUS_SUCCESS) goto error;
934 dos = (IMAGE_DOS_HEADER *)ptr;
935 nt = (IMAGE_NT_HEADERS *)(ptr + dos->e_lfanew);
936 header_end = ptr + ROUND_SIZE( 0, header_size );
937 memset( ptr + header_size, 0, header_end - (ptr + header_size) );
938 if ((char *)(nt + 1) > header_end) goto error;
939 sec = (IMAGE_SECTION_HEADER*)((char*)&nt->OptionalHeader+nt->FileHeader.SizeOfOptionalHeader);
940 if ((char *)(sec + nt->FileHeader.NumberOfSections) > header_end) goto error;
942 imports = nt->OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_IMPORT;
943 if (!imports->Size || !imports->VirtualAddress) imports = NULL;
945 /* check the architecture */
947 if (nt->FileHeader.Machine != IMAGE_FILE_MACHINE_I386)
949 MESSAGE("Trying to load PE image for unsupported architecture (");
950 switch (nt->FileHeader.Machine)
952 case IMAGE_FILE_MACHINE_UNKNOWN: MESSAGE("Unknown"); break;
953 case IMAGE_FILE_MACHINE_I860: MESSAGE("I860"); break;
954 case IMAGE_FILE_MACHINE_R3000: MESSAGE("R3000"); break;
955 case IMAGE_FILE_MACHINE_R4000: MESSAGE("R4000"); break;
956 case IMAGE_FILE_MACHINE_R10000: MESSAGE("R10000"); break;
957 case IMAGE_FILE_MACHINE_ALPHA: MESSAGE("Alpha"); break;
958 case IMAGE_FILE_MACHINE_POWERPC: MESSAGE("PowerPC"); break;
959 case IMAGE_FILE_MACHINE_IA64: MESSAGE("IA-64"); break;
960 case IMAGE_FILE_MACHINE_ALPHA64: MESSAGE("Alpha-64"); break;
961 case IMAGE_FILE_MACHINE_AMD64: MESSAGE("AMD-64"); break;
962 case IMAGE_FILE_MACHINE_ARM: MESSAGE("ARM"); break;
963 default: MESSAGE("Unknown-%04x", nt->FileHeader.Machine); break;
969 /* check for non page-aligned binary */
971 if (nt->OptionalHeader.SectionAlignment <= page_mask)
973 /* unaligned sections, this happens for native subsystem binaries */
974 /* in that case Windows simply maps in the whole file */
976 if (map_file_into_view( view, fd, 0, total_size, 0, VPROT_COMMITTED | VPROT_READ,
977 !dup_mapping ) != STATUS_SUCCESS) goto error;
979 /* check that all sections are loaded at the right offset */
980 if (nt->OptionalHeader.FileAlignment != nt->OptionalHeader.SectionAlignment) goto error;
981 for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
983 if (sec[i].VirtualAddress != sec[i].PointerToRawData)
984 goto error; /* Windows refuses to load in that case too */
987 /* set the image protections */
988 VIRTUAL_SetProt( view, ptr, total_size,
989 VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY | VPROT_EXEC );
991 /* no relocations are performed on non page-aligned binaries */
996 /* map all the sections */
998 for (i = pos = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
1000 static const SIZE_T sector_align = 0x1ff;
1001 SIZE_T map_size, file_start, file_size, end;
1003 if (!sec->Misc.VirtualSize)
1004 map_size = ROUND_SIZE( 0, sec->SizeOfRawData );
1006 map_size = ROUND_SIZE( 0, sec->Misc.VirtualSize );
1008 /* file positions are rounded to sector boundaries regardless of OptionalHeader.FileAlignment */
1009 file_start = sec->PointerToRawData & ~sector_align;
1010 file_size = (sec->SizeOfRawData + (sec->PointerToRawData & sector_align) + sector_align) & ~sector_align;
1011 if (file_size > map_size) file_size = map_size;
1013 /* a few sanity checks */
1014 end = sec->VirtualAddress + ROUND_SIZE( sec->VirtualAddress, map_size );
1015 if (sec->VirtualAddress > total_size || end > total_size || end < sec->VirtualAddress)
1017 WARN_(module)( "Section %.8s too large (%x+%lx/%lx)\n",
1018 sec->Name, sec->VirtualAddress, map_size, total_size );
1022 if ((sec->Characteristics & IMAGE_SCN_MEM_SHARED) &&
1023 (sec->Characteristics & IMAGE_SCN_MEM_WRITE))
1025 TRACE_(module)( "mapping shared section %.8s at %p off %x (%x) size %lx (%lx) flags %x\n",
1026 sec->Name, ptr + sec->VirtualAddress,
1027 sec->PointerToRawData, (int)pos, file_size, map_size,
1028 sec->Characteristics );
1029 if (map_file_into_view( view, shared_fd, sec->VirtualAddress, map_size, pos,
1030 VPROT_COMMITTED | VPROT_READ | VPROT_WRITE,
1031 FALSE ) != STATUS_SUCCESS)
1033 ERR_(module)( "Could not map shared section %.8s\n", sec->Name );
1037 /* check if the import directory falls inside this section */
1038 if (imports && imports->VirtualAddress >= sec->VirtualAddress &&
1039 imports->VirtualAddress < sec->VirtualAddress + map_size)
1041 UINT_PTR base = imports->VirtualAddress & ~page_mask;
1042 UINT_PTR end = base + ROUND_SIZE( imports->VirtualAddress, imports->Size );
1043 if (end > sec->VirtualAddress + map_size) end = sec->VirtualAddress + map_size;
1045 map_file_into_view( view, shared_fd, base, end - base,
1046 pos + (base - sec->VirtualAddress),
1047 VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY,
1054 TRACE_(module)( "mapping section %.8s at %p off %x size %x virt %x flags %x\n",
1055 sec->Name, ptr + sec->VirtualAddress,
1056 sec->PointerToRawData, sec->SizeOfRawData,
1057 sec->Misc.VirtualSize, sec->Characteristics );
1059 if (!sec->PointerToRawData || !file_size) continue;
1061 /* Note: if the section is not aligned properly map_file_into_view will magically
1062 * fall back to read(), so we don't need to check anything here.
1064 end = file_start + file_size;
1065 if (sec->PointerToRawData >= st.st_size ||
1066 end > ((st.st_size + sector_align) & ~sector_align) ||
1068 map_file_into_view( view, fd, sec->VirtualAddress, file_size, file_start,
1069 VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY,
1070 !dup_mapping ) != STATUS_SUCCESS)
1072 ERR_(module)( "Could not map section %.8s, file probably truncated\n", sec->Name );
1076 if (file_size & page_mask)
1078 end = ROUND_SIZE( 0, file_size );
1079 if (end > map_size) end = map_size;
1080 TRACE_(module)("clearing %p - %p\n",
1081 ptr + sec->VirtualAddress + file_size,
1082 ptr + sec->VirtualAddress + end );
1083 memset( ptr + sec->VirtualAddress + file_size, 0, end - file_size );
1088 /* perform base relocation, if necessary */
1091 ((nt->FileHeader.Characteristics & IMAGE_FILE_DLL) ||
1092 !NtCurrentTeb()->Peb->ImageBaseAddress) )
1094 IMAGE_BASE_RELOCATION *rel, *end;
1095 const IMAGE_DATA_DIRECTORY *relocs;
1097 if (nt->FileHeader.Characteristics & IMAGE_FILE_RELOCS_STRIPPED)
1099 WARN_(module)( "Need to relocate module from %p to %p, but there are no relocation records\n",
1101 status = STATUS_CONFLICTING_ADDRESSES;
1105 TRACE_(module)( "relocating from %p-%p to %p-%p\n",
1106 base, base + total_size, ptr, ptr + total_size );
1108 relocs = &nt->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
1109 rel = (IMAGE_BASE_RELOCATION *)(ptr + relocs->VirtualAddress);
1110 end = (IMAGE_BASE_RELOCATION *)(ptr + relocs->VirtualAddress + relocs->Size);
1113 while (rel < end - 1 && rel->SizeOfBlock)
1115 if (rel->VirtualAddress >= total_size)
1117 WARN_(module)( "invalid address %p in relocation %p\n", ptr + rel->VirtualAddress, rel );
1118 status = STATUS_ACCESS_VIOLATION;
1121 rel = LdrProcessRelocationBlock( ptr + rel->VirtualAddress,
1122 (rel->SizeOfBlock - sizeof(*rel)) / sizeof(USHORT),
1123 (USHORT *)(rel + 1), delta );
1124 if (!rel) goto error;
1128 /* set the image protections */
1130 VIRTUAL_SetProt( view, ptr, ROUND_SIZE( 0, header_size ), VPROT_COMMITTED | VPROT_READ );
1132 sec = (IMAGE_SECTION_HEADER*)((char *)&nt->OptionalHeader+nt->FileHeader.SizeOfOptionalHeader);
1133 for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
1136 BYTE vprot = VPROT_COMMITTED;
1138 if (sec->Misc.VirtualSize)
1139 size = ROUND_SIZE( sec->VirtualAddress, sec->Misc.VirtualSize );
1141 size = ROUND_SIZE( sec->VirtualAddress, sec->SizeOfRawData );
1143 if (sec->Characteristics & IMAGE_SCN_MEM_READ) vprot |= VPROT_READ;
1144 if (sec->Characteristics & IMAGE_SCN_MEM_WRITE) vprot |= VPROT_READ|VPROT_WRITECOPY;
1145 if (sec->Characteristics & IMAGE_SCN_MEM_EXECUTE) vprot |= VPROT_EXEC;
1147 /* Dumb game crack lets the AOEP point into a data section. Adjust. */
1148 if ((nt->OptionalHeader.AddressOfEntryPoint >= sec->VirtualAddress) &&
1149 (nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress + size))
1150 vprot |= VPROT_EXEC;
1152 VIRTUAL_SetProt( view, ptr + sec->VirtualAddress, size, vprot );
1156 view->mapping = dup_mapping;
1157 server_leave_uninterrupted_section( &csVirtual, &sigset );
1160 #ifdef VALGRIND_LOAD_PDB_DEBUGINFO
1161 VALGRIND_LOAD_PDB_DEBUGINFO(fd, ptr, total_size, delta);
1163 return STATUS_SUCCESS;
1166 if (view) delete_view( view );
1167 server_leave_uninterrupted_section( &csVirtual, &sigset );
1168 if (dup_mapping) NtClose( dup_mapping );
1173 /* callback for wine_mmap_enum_reserved_areas to allocate space for the virtual heap */
1174 static int alloc_virtual_heap( void *base, size_t size, void *arg )
1176 void **heap_base = arg;
1178 if (address_space_limit) address_space_limit = max( (char *)address_space_limit, (char *)base + size );
1179 if (size < VIRTUAL_HEAP_SIZE) return 0;
1180 *heap_base = wine_anon_mmap( (char *)base + size - VIRTUAL_HEAP_SIZE,
1181 VIRTUAL_HEAP_SIZE, PROT_READ|PROT_WRITE, MAP_FIXED );
1182 return (*heap_base != (void *)-1);
1185 /***********************************************************************
1188 void virtual_init(void)
1190 const char *preload;
1192 struct file_view *heap_view;
1195 page_size = getpagesize();
1196 page_mask = page_size - 1;
1197 /* Make sure we have a power of 2 */
1198 assert( !(page_size & page_mask) );
1200 while ((1 << page_shift) != page_size) page_shift++;
1201 #endif /* page_mask */
1202 if ((preload = getenv("WINEPRELOADRESERVE")))
1204 unsigned long start, end;
1205 if (sscanf( preload, "%lx-%lx", &start, &end ) == 2)
1207 preload_reserve_start = (void *)start;
1208 preload_reserve_end = (void *)end;
1212 /* try to find space in a reserved area for the virtual heap */
1213 if (!wine_mmap_enum_reserved_areas( alloc_virtual_heap, &heap_base, 1 ))
1214 heap_base = wine_anon_mmap( NULL, VIRTUAL_HEAP_SIZE, PROT_READ|PROT_WRITE, 0 );
1216 assert( heap_base != (void *)-1 );
1217 virtual_heap = RtlCreateHeap( HEAP_NO_SERIALIZE, heap_base, VIRTUAL_HEAP_SIZE,
1218 VIRTUAL_HEAP_SIZE, NULL, NULL );
1219 create_view( &heap_view, heap_base, VIRTUAL_HEAP_SIZE, VPROT_COMMITTED | VPROT_READ | VPROT_WRITE );
1223 /***********************************************************************
1224 * virtual_init_threading
1226 void virtual_init_threading(void)
1232 /***********************************************************************
1233 * virtual_get_system_info
1235 void virtual_get_system_info( SYSTEM_BASIC_INFORMATION *info )
1237 info->dwUnknown1 = 0;
1238 info->uKeMaximumIncrement = 0; /* FIXME */
1239 info->uPageSize = page_size;
1240 info->uMmLowestPhysicalPage = 1;
1241 info->uMmHighestPhysicalPage = 0x7fffffff / page_size;
1242 info->uMmNumberOfPhysicalPages = info->uMmHighestPhysicalPage - info->uMmLowestPhysicalPage;
1243 info->uAllocationGranularity = get_mask(0) + 1;
1244 info->pLowestUserAddress = (void *)0x10000;
1245 info->pMmHighestUserAddress = (char *)user_space_limit - 1;
1246 info->uKeActiveProcessors = NtCurrentTeb()->Peb->NumberOfProcessors;
1247 info->bKeNumberProcessors = info->uKeActiveProcessors;
1251 /***********************************************************************
1252 * virtual_alloc_thread_stack
1254 NTSTATUS virtual_alloc_thread_stack( void *base, SIZE_T size )
1260 server_enter_uninterrupted_section( &csVirtual, &sigset );
1262 if (base) /* already allocated, create a system view */
1264 size = ROUND_SIZE( base, size );
1265 base = ROUND_ADDR( base, page_mask );
1266 if ((status = create_view( &view, base, size,
1267 VPROT_READ | VPROT_WRITE | VPROT_COMMITTED | VPROT_VALLOC | VPROT_SYSTEM )) != STATUS_SUCCESS)
1272 size = (size + 0xffff) & ~0xffff; /* round to 64K boundary */
1273 if ((status = map_view( &view, NULL, size, 0xffff, 0,
1274 VPROT_READ | VPROT_WRITE | VPROT_COMMITTED | VPROT_VALLOC )) != STATUS_SUCCESS)
1276 #ifdef VALGRIND_STACK_REGISTER
1277 /* no need to de-register the stack as it's the one of the main thread */
1278 VALGRIND_STACK_REGISTER( view->base, (char *)view->base + view->size );
1282 /* setup no access guard page */
1283 VIRTUAL_SetProt( view, view->base, page_size, VPROT_COMMITTED );
1284 VIRTUAL_SetProt( view, (char *)view->base + page_size, page_size,
1285 VPROT_READ | VPROT_WRITE | VPROT_COMMITTED | VPROT_GUARD );
1287 /* note: limit is lower than base since the stack grows down */
1288 NtCurrentTeb()->DeallocationStack = view->base;
1289 NtCurrentTeb()->Tib.StackBase = (char *)view->base + view->size;
1290 NtCurrentTeb()->Tib.StackLimit = (char *)view->base + 2 * page_size;
1293 server_leave_uninterrupted_section( &csVirtual, &sigset );
1298 /***********************************************************************
1299 * virtual_clear_thread_stack
1301 * Clear the stack contents before calling the main entry point, some broken apps need that.
1303 void virtual_clear_thread_stack(void)
1305 void *stack = NtCurrentTeb()->Tib.StackLimit;
1306 size_t size = (char *)NtCurrentTeb()->Tib.StackBase - (char *)NtCurrentTeb()->Tib.StackLimit;
1308 wine_anon_mmap( stack, size, PROT_READ | PROT_WRITE, MAP_FIXED );
1309 if (force_exec_prot) mprotect( stack, size, PROT_READ | PROT_WRITE | PROT_EXEC );
1313 /***********************************************************************
1314 * VIRTUAL_HandleFault
1316 NTSTATUS VIRTUAL_HandleFault( LPCVOID addr )
1319 NTSTATUS ret = STATUS_ACCESS_VIOLATION;
1322 server_enter_uninterrupted_section( &csVirtual, &sigset );
1323 if ((view = VIRTUAL_FindView( addr )))
1325 void *page = ROUND_ADDR( addr, page_mask );
1326 BYTE vprot = view->prot[((const char *)page - (const char *)view->base) >> page_shift];
1327 if (vprot & VPROT_GUARD)
1329 VIRTUAL_SetProt( view, page, page_size, vprot & ~VPROT_GUARD );
1330 ret = STATUS_GUARD_PAGE_VIOLATION;
1333 server_leave_uninterrupted_section( &csVirtual, &sigset );
1339 /***********************************************************************
1340 * virtual_handle_stack_fault
1342 * Handle an access fault inside the current thread stack.
1343 * Called from inside a signal handler.
1345 BOOL virtual_handle_stack_fault( void *addr )
1350 RtlEnterCriticalSection( &csVirtual ); /* no need for signal masking inside signal handler */
1351 if ((view = VIRTUAL_FindView( addr )))
1353 void *page = ROUND_ADDR( addr, page_mask );
1354 BYTE vprot = view->prot[((const char *)page - (const char *)view->base) >> page_shift];
1355 if (vprot & VPROT_GUARD)
1357 VIRTUAL_SetProt( view, page, page_size, vprot & ~VPROT_GUARD );
1358 if ((char *)page + page_size == NtCurrentTeb()->Tib.StackLimit)
1359 NtCurrentTeb()->Tib.StackLimit = page;
1363 RtlLeaveCriticalSection( &csVirtual );
1368 /***********************************************************************
1369 * VIRTUAL_SetForceExec
1371 * Whether to force exec prot on all views.
1373 void VIRTUAL_SetForceExec( BOOL enable )
1375 struct file_view *view;
1378 server_enter_uninterrupted_section( &csVirtual, &sigset );
1379 if (!force_exec_prot != !enable) /* change all existing views */
1381 force_exec_prot = enable;
1383 LIST_FOR_EACH_ENTRY( view, &views_list, struct file_view, entry )
1387 char *addr = view->base;
1388 BYTE prot = view->prot[0];
1390 if (view->protect & VPROT_NOEXEC) continue;
1391 for (count = i = 1; i < view->size >> page_shift; i++, count++)
1393 if (view->prot[i] == prot) continue;
1394 unix_prot = VIRTUAL_GetUnixProt( prot );
1395 if ((unix_prot & PROT_READ) && !(unix_prot & PROT_EXEC))
1397 TRACE( "%s exec prot for %p-%p\n",
1398 force_exec_prot ? "enabling" : "disabling",
1399 addr, addr + (count << page_shift) - 1 );
1400 mprotect( addr, count << page_shift,
1401 unix_prot | (force_exec_prot ? PROT_EXEC : 0) );
1403 addr += (count << page_shift);
1404 prot = view->prot[i];
1409 unix_prot = VIRTUAL_GetUnixProt( prot );
1410 if ((unix_prot & PROT_READ) && !(unix_prot & PROT_EXEC))
1412 TRACE( "%s exec prot for %p-%p\n",
1413 force_exec_prot ? "enabling" : "disabling",
1414 addr, addr + (count << page_shift) - 1 );
1415 mprotect( addr, count << page_shift,
1416 unix_prot | (force_exec_prot ? PROT_EXEC : 0) );
1421 server_leave_uninterrupted_section( &csVirtual, &sigset );
1425 /***********************************************************************
1426 * VIRTUAL_UseLargeAddressSpace
1428 * Increase the address space size for apps that support it.
1430 void VIRTUAL_UseLargeAddressSpace(void)
1432 /* no large address space on win9x */
1433 if (NtCurrentTeb()->Peb->OSPlatformId != VER_PLATFORM_WIN32_NT) return;
1434 user_space_limit = address_space_limit;
1438 /***********************************************************************
1439 * NtAllocateVirtualMemory (NTDLL.@)
1440 * ZwAllocateVirtualMemory (NTDLL.@)
1442 NTSTATUS WINAPI NtAllocateVirtualMemory( HANDLE process, PVOID *ret, ULONG zero_bits,
1443 SIZE_T *size_ptr, ULONG type, ULONG protect )
1447 SIZE_T size = *size_ptr;
1448 SIZE_T mask = get_mask( zero_bits );
1449 NTSTATUS status = STATUS_SUCCESS;
1450 struct file_view *view;
1453 TRACE("%p %p %08lx %x %08x\n", process, *ret, size, type, protect );
1455 if (!size) return STATUS_INVALID_PARAMETER;
1457 if (process != NtCurrentProcess())
1460 apc_result_t result;
1462 memset( &call, 0, sizeof(call) );
1464 call.virtual_alloc.type = APC_VIRTUAL_ALLOC;
1465 call.virtual_alloc.addr = *ret;
1466 call.virtual_alloc.size = *size_ptr;
1467 call.virtual_alloc.zero_bits = zero_bits;
1468 call.virtual_alloc.op_type = type;
1469 call.virtual_alloc.prot = protect;
1470 status = NTDLL_queue_process_apc( process, &call, &result );
1471 if (status != STATUS_SUCCESS) return status;
1473 if (result.virtual_alloc.status == STATUS_SUCCESS)
1475 *ret = result.virtual_alloc.addr;
1476 *size_ptr = result.virtual_alloc.size;
1478 return result.virtual_alloc.status;
1481 /* Round parameters to a page boundary */
1483 if (size > 0x7fc00000) return STATUS_WORKING_SET_LIMIT_RANGE; /* 2Gb - 4Mb */
1487 if (type & MEM_RESERVE) /* Round down to 64k boundary */
1488 base = ROUND_ADDR( *ret, mask );
1490 base = ROUND_ADDR( *ret, page_mask );
1491 size = (((UINT_PTR)*ret + size + page_mask) & ~page_mask) - (UINT_PTR)base;
1493 /* disallow low 64k, wrap-around and kernel space */
1494 if (((char *)base < (char *)0x10000) ||
1495 ((char *)base + size < (char *)base) ||
1496 is_beyond_limit( base, size, address_space_limit ))
1497 return STATUS_INVALID_PARAMETER;
1502 size = (size + page_mask) & ~page_mask;
1505 /* Compute the alloc type flags */
1507 if (!(type & MEM_SYSTEM))
1509 if (!(type & (MEM_COMMIT | MEM_RESERVE)) ||
1510 (type & ~(MEM_COMMIT | MEM_RESERVE | MEM_TOP_DOWN | MEM_WRITE_WATCH | MEM_RESET)))
1512 WARN("called with wrong alloc type flags (%08x) !\n", type);
1513 return STATUS_INVALID_PARAMETER;
1515 if (type & MEM_WRITE_WATCH)
1517 FIXME("MEM_WRITE_WATCH type not supported\n");
1518 return STATUS_NOT_SUPPORTED;
1521 vprot = VIRTUAL_GetProt( protect ) | VPROT_VALLOC;
1522 if (type & MEM_COMMIT) vprot |= VPROT_COMMITTED;
1524 /* Reserve the memory */
1526 if (use_locks) server_enter_uninterrupted_section( &csVirtual, &sigset );
1528 if (type & MEM_SYSTEM)
1530 if (type & MEM_IMAGE) vprot |= VPROT_IMAGE | VPROT_NOEXEC;
1531 status = create_view( &view, base, size, vprot | VPROT_COMMITTED | VPROT_SYSTEM );
1532 if (status == STATUS_SUCCESS) base = view->base;
1534 else if ((type & MEM_RESERVE) || !base)
1536 status = map_view( &view, base, size, mask, type & MEM_TOP_DOWN, vprot );
1537 if (status == STATUS_SUCCESS) base = view->base;
1539 else /* commit the pages */
1541 if (!(view = VIRTUAL_FindView( base )) ||
1542 ((char *)base + size > (char *)view->base + view->size)) status = STATUS_NOT_MAPPED_VIEW;
1543 else if (!VIRTUAL_SetProt( view, base, size, vprot )) status = STATUS_ACCESS_DENIED;
1546 if (use_locks) server_leave_uninterrupted_section( &csVirtual, &sigset );
1548 if (status == STATUS_SUCCESS)
1557 /***********************************************************************
1558 * NtFreeVirtualMemory (NTDLL.@)
1559 * ZwFreeVirtualMemory (NTDLL.@)
1561 NTSTATUS WINAPI NtFreeVirtualMemory( HANDLE process, PVOID *addr_ptr, SIZE_T *size_ptr, ULONG type )
1566 NTSTATUS status = STATUS_SUCCESS;
1567 LPVOID addr = *addr_ptr;
1568 SIZE_T size = *size_ptr;
1570 TRACE("%p %p %08lx %x\n", process, addr, size, type );
1572 if (process != NtCurrentProcess())
1575 apc_result_t result;
1577 memset( &call, 0, sizeof(call) );
1579 call.virtual_free.type = APC_VIRTUAL_FREE;
1580 call.virtual_free.addr = addr;
1581 call.virtual_free.size = size;
1582 call.virtual_free.op_type = type;
1583 status = NTDLL_queue_process_apc( process, &call, &result );
1584 if (status != STATUS_SUCCESS) return status;
1586 if (result.virtual_free.status == STATUS_SUCCESS)
1588 *addr_ptr = result.virtual_free.addr;
1589 *size_ptr = result.virtual_free.size;
1591 return result.virtual_free.status;
1594 /* Fix the parameters */
1596 size = ROUND_SIZE( addr, size );
1597 base = ROUND_ADDR( addr, page_mask );
1599 /* avoid freeing the DOS area when a broken app passes a NULL pointer */
1600 if (!base && !(type & MEM_SYSTEM)) return STATUS_INVALID_PARAMETER;
1602 server_enter_uninterrupted_section( &csVirtual, &sigset );
1604 if (!(view = VIRTUAL_FindView( base )) ||
1605 (base + size > (char *)view->base + view->size) ||
1606 !(view->protect & VPROT_VALLOC))
1608 status = STATUS_INVALID_PARAMETER;
1610 else if (type & MEM_SYSTEM)
1612 /* return the values that the caller should use to unmap the area */
1613 *addr_ptr = view->base;
1614 if (!wine_mmap_is_in_reserved_area( view->base, view->size )) *size_ptr = view->size;
1615 else *size_ptr = 0; /* make sure we don't munmap anything from a reserved area */
1616 view->protect |= VPROT_SYSTEM;
1617 delete_view( view );
1619 else if (type == MEM_RELEASE)
1621 /* Free the pages */
1623 if (size || (base != view->base)) status = STATUS_INVALID_PARAMETER;
1626 delete_view( view );
1631 else if (type == MEM_DECOMMIT)
1633 status = decommit_pages( view, base - (char *)view->base, size );
1634 if (status == STATUS_SUCCESS)
1642 WARN("called with wrong free type flags (%08x) !\n", type);
1643 status = STATUS_INVALID_PARAMETER;
1646 server_leave_uninterrupted_section( &csVirtual, &sigset );
1651 /***********************************************************************
1652 * NtProtectVirtualMemory (NTDLL.@)
1653 * ZwProtectVirtualMemory (NTDLL.@)
1655 NTSTATUS WINAPI NtProtectVirtualMemory( HANDLE process, PVOID *addr_ptr, SIZE_T *size_ptr,
1656 ULONG new_prot, ULONG *old_prot )
1660 NTSTATUS status = STATUS_SUCCESS;
1665 SIZE_T size = *size_ptr;
1666 LPVOID addr = *addr_ptr;
1668 TRACE("%p %p %08lx %08x\n", process, addr, size, new_prot );
1670 if (process != NtCurrentProcess())
1673 apc_result_t result;
1675 memset( &call, 0, sizeof(call) );
1677 call.virtual_protect.type = APC_VIRTUAL_PROTECT;
1678 call.virtual_protect.addr = addr;
1679 call.virtual_protect.size = size;
1680 call.virtual_protect.prot = new_prot;
1681 status = NTDLL_queue_process_apc( process, &call, &result );
1682 if (status != STATUS_SUCCESS) return status;
1684 if (result.virtual_protect.status == STATUS_SUCCESS)
1686 *addr_ptr = result.virtual_protect.addr;
1687 *size_ptr = result.virtual_protect.size;
1688 if (old_prot) *old_prot = result.virtual_protect.prot;
1690 return result.virtual_protect.status;
1693 /* Fix the parameters */
1695 size = ROUND_SIZE( addr, size );
1696 base = ROUND_ADDR( addr, page_mask );
1698 server_enter_uninterrupted_section( &csVirtual, &sigset );
1700 if (!(view = VIRTUAL_FindView( base )) || (base + size > (char *)view->base + view->size))
1702 status = STATUS_INVALID_PARAMETER;
1706 /* Make sure all the pages are committed */
1708 p = view->prot + ((base - (char *)view->base) >> page_shift);
1709 prot = VIRTUAL_GetWin32Prot( *p );
1710 for (i = size >> page_shift; i; i--, p++)
1712 if (!(*p & VPROT_COMMITTED))
1714 status = STATUS_NOT_COMMITTED;
1720 if (old_prot) *old_prot = prot;
1721 vprot = VIRTUAL_GetProt( new_prot ) | VPROT_COMMITTED;
1722 if (!VIRTUAL_SetProt( view, base, size, vprot )) status = STATUS_ACCESS_DENIED;
1725 server_leave_uninterrupted_section( &csVirtual, &sigset );
1727 if (status == STATUS_SUCCESS)
1735 #define UNIMPLEMENTED_INFO_CLASS(c) \
1737 FIXME("(process=%p,addr=%p) Unimplemented information class: " #c "\n", process, addr); \
1738 return STATUS_INVALID_INFO_CLASS
1740 /***********************************************************************
1741 * NtQueryVirtualMemory (NTDLL.@)
1742 * ZwQueryVirtualMemory (NTDLL.@)
1744 NTSTATUS WINAPI NtQueryVirtualMemory( HANDLE process, LPCVOID addr,
1745 MEMORY_INFORMATION_CLASS info_class, PVOID buffer,
1746 SIZE_T len, SIZE_T *res_len )
1749 char *base, *alloc_base = 0;
1752 MEMORY_BASIC_INFORMATION *info = buffer;
1755 if (info_class != MemoryBasicInformation)
1759 UNIMPLEMENTED_INFO_CLASS(MemoryWorkingSetList);
1760 UNIMPLEMENTED_INFO_CLASS(MemorySectionName);
1761 UNIMPLEMENTED_INFO_CLASS(MemoryBasicVlmInformation);
1764 FIXME("(%p,%p,info_class=%d,%p,%ld,%p) Unknown information class\n",
1765 process, addr, info_class, buffer, len, res_len);
1766 return STATUS_INVALID_INFO_CLASS;
1769 if (address_space_limit && addr >= address_space_limit)
1770 return STATUS_WORKING_SET_LIMIT_RANGE;
1772 if (process != NtCurrentProcess())
1776 apc_result_t result;
1778 memset( &call, 0, sizeof(call) );
1780 call.virtual_query.type = APC_VIRTUAL_QUERY;
1781 call.virtual_query.addr = addr;
1782 status = NTDLL_queue_process_apc( process, &call, &result );
1783 if (status != STATUS_SUCCESS) return status;
1785 if (result.virtual_query.status == STATUS_SUCCESS)
1787 info->BaseAddress = result.virtual_query.base;
1788 info->AllocationBase = result.virtual_query.alloc_base;
1789 info->RegionSize = result.virtual_query.size;
1790 info->State = result.virtual_query.state;
1791 info->Protect = result.virtual_query.prot;
1792 info->AllocationProtect = result.virtual_query.alloc_prot;
1793 info->Type = result.virtual_query.alloc_type;
1794 if (res_len) *res_len = sizeof(*info);
1796 return result.virtual_query.status;
1799 base = ROUND_ADDR( addr, page_mask );
1801 /* Find the view containing the address */
1803 server_enter_uninterrupted_section( &csVirtual, &sigset );
1804 ptr = list_head( &views_list );
1809 /* make the address space end at the user limit, except if
1810 * the last view was mapped beyond that */
1811 if (alloc_base <= (char *)user_space_limit)
1813 if (user_space_limit && base >= (char *)user_space_limit)
1815 server_leave_uninterrupted_section( &csVirtual, &sigset );
1816 return STATUS_WORKING_SET_LIMIT_RANGE;
1818 size = (char *)user_space_limit - alloc_base;
1820 else size = (char *)address_space_limit - alloc_base;
1824 view = LIST_ENTRY( ptr, struct file_view, entry );
1825 if ((char *)view->base > base)
1827 size = (char *)view->base - alloc_base;
1831 if ((char *)view->base + view->size > base)
1833 alloc_base = view->base;
1837 alloc_base = (char *)view->base + view->size;
1838 ptr = list_next( &views_list, ptr );
1841 /* Fill the info structure */
1845 info->State = MEM_FREE;
1846 info->Protect = PAGE_NOACCESS;
1847 info->AllocationBase = 0;
1848 info->AllocationProtect = 0;
1853 BYTE vprot = view->prot[(base - alloc_base) >> page_shift];
1854 info->State = (vprot & VPROT_COMMITTED) ? MEM_COMMIT : MEM_RESERVE;
1855 info->Protect = VIRTUAL_GetWin32Prot( vprot );
1856 info->AllocationBase = alloc_base;
1857 info->AllocationProtect = VIRTUAL_GetWin32Prot( view->protect );
1858 if (view->protect & VPROT_IMAGE) info->Type = MEM_IMAGE;
1859 else if (view->protect & VPROT_VALLOC) info->Type = MEM_PRIVATE;
1860 else info->Type = MEM_MAPPED;
1861 for (size = base - alloc_base; size < view->size; size += page_size)
1862 if (view->prot[size >> page_shift] != vprot) break;
1864 server_leave_uninterrupted_section( &csVirtual, &sigset );
1866 info->BaseAddress = base;
1867 info->RegionSize = size - (base - alloc_base);
1868 if (res_len) *res_len = sizeof(*info);
1869 return STATUS_SUCCESS;
1873 /***********************************************************************
1874 * NtLockVirtualMemory (NTDLL.@)
1875 * ZwLockVirtualMemory (NTDLL.@)
1877 NTSTATUS WINAPI NtLockVirtualMemory( HANDLE process, PVOID *addr, SIZE_T *size, ULONG unknown )
1879 NTSTATUS status = STATUS_SUCCESS;
1881 if (process != NtCurrentProcess())
1884 apc_result_t result;
1886 memset( &call, 0, sizeof(call) );
1888 call.virtual_lock.type = APC_VIRTUAL_LOCK;
1889 call.virtual_lock.addr = *addr;
1890 call.virtual_lock.size = *size;
1891 status = NTDLL_queue_process_apc( process, &call, &result );
1892 if (status != STATUS_SUCCESS) return status;
1894 if (result.virtual_lock.status == STATUS_SUCCESS)
1896 *addr = result.virtual_lock.addr;
1897 *size = result.virtual_lock.size;
1899 return result.virtual_lock.status;
1902 *size = ROUND_SIZE( *addr, *size );
1903 *addr = ROUND_ADDR( *addr, page_mask );
1905 if (mlock( *addr, *size )) status = STATUS_ACCESS_DENIED;
1910 /***********************************************************************
1911 * NtUnlockVirtualMemory (NTDLL.@)
1912 * ZwUnlockVirtualMemory (NTDLL.@)
1914 NTSTATUS WINAPI NtUnlockVirtualMemory( HANDLE process, PVOID *addr, SIZE_T *size, ULONG unknown )
1916 NTSTATUS status = STATUS_SUCCESS;
1918 if (process != NtCurrentProcess())
1921 apc_result_t result;
1923 memset( &call, 0, sizeof(call) );
1925 call.virtual_unlock.type = APC_VIRTUAL_UNLOCK;
1926 call.virtual_unlock.addr = *addr;
1927 call.virtual_unlock.size = *size;
1928 status = NTDLL_queue_process_apc( process, &call, &result );
1929 if (status != STATUS_SUCCESS) return status;
1931 if (result.virtual_unlock.status == STATUS_SUCCESS)
1933 *addr = result.virtual_unlock.addr;
1934 *size = result.virtual_unlock.size;
1936 return result.virtual_unlock.status;
1939 *size = ROUND_SIZE( *addr, *size );
1940 *addr = ROUND_ADDR( *addr, page_mask );
1942 if (munlock( *addr, *size )) status = STATUS_ACCESS_DENIED;
1947 /***********************************************************************
1948 * NtCreateSection (NTDLL.@)
1949 * ZwCreateSection (NTDLL.@)
1951 NTSTATUS WINAPI NtCreateSection( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
1952 const LARGE_INTEGER *size, ULONG protect,
1953 ULONG sec_flags, HANDLE file )
1957 DWORD len = (attr && attr->ObjectName) ? attr->ObjectName->Length : 0;
1958 struct security_descriptor *sd = NULL;
1959 struct object_attributes objattr;
1961 /* Check parameters */
1963 if (len > MAX_PATH*sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
1965 objattr.rootdir = attr ? attr->RootDirectory : 0;
1967 objattr.name_len = len;
1970 ret = NTDLL_create_struct_sd( attr->SecurityDescriptor, &sd, &objattr.sd_len );
1971 if (ret != STATUS_SUCCESS) return ret;
1974 vprot = VIRTUAL_GetProt( protect );
1975 if (sec_flags & SEC_RESERVE)
1977 if (file) return STATUS_INVALID_PARAMETER;
1979 else vprot |= VPROT_COMMITTED;
1980 if (sec_flags & SEC_NOCACHE) vprot |= VPROT_NOCACHE;
1981 if (sec_flags & SEC_IMAGE) vprot |= VPROT_IMAGE;
1983 /* Create the server object */
1985 SERVER_START_REQ( create_mapping )
1987 req->access = access;
1988 req->attributes = (attr) ? attr->Attributes : 0;
1989 req->file_handle = file;
1990 req->size = size ? size->QuadPart : 0;
1991 req->protect = vprot;
1992 wine_server_add_data( req, &objattr, sizeof(objattr) );
1993 if (objattr.sd_len) wine_server_add_data( req, sd, objattr.sd_len );
1994 if (len) wine_server_add_data( req, attr->ObjectName->Buffer, len );
1995 ret = wine_server_call( req );
1996 *handle = reply->handle;
2000 NTDLL_free_struct_sd( sd );
2006 /***********************************************************************
2007 * NtOpenSection (NTDLL.@)
2008 * ZwOpenSection (NTDLL.@)
2010 NTSTATUS WINAPI NtOpenSection( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
2013 DWORD len = attr->ObjectName->Length;
2015 if (len > MAX_PATH*sizeof(WCHAR)) return STATUS_NAME_TOO_LONG;
2017 SERVER_START_REQ( open_mapping )
2019 req->access = access;
2020 req->attributes = attr->Attributes;
2021 req->rootdir = attr->RootDirectory;
2022 wine_server_add_data( req, attr->ObjectName->Buffer, len );
2023 if (!(ret = wine_server_call( req ))) *handle = reply->handle;
2030 /***********************************************************************
2031 * NtMapViewOfSection (NTDLL.@)
2032 * ZwMapViewOfSection (NTDLL.@)
2034 NTSTATUS WINAPI NtMapViewOfSection( HANDLE handle, HANDLE process, PVOID *addr_ptr, ULONG zero_bits,
2035 SIZE_T commit_size, const LARGE_INTEGER *offset_ptr, SIZE_T *size_ptr,
2036 SECTION_INHERIT inherit, ULONG alloc_type, ULONG protect )
2039 ULONGLONG full_size;
2041 SIZE_T mask = get_mask( zero_bits );
2042 int unix_handle = -1, needs_close;
2045 struct file_view *view;
2047 HANDLE dup_mapping, shared_file;
2048 LARGE_INTEGER offset;
2051 offset.QuadPart = offset_ptr ? offset_ptr->QuadPart : 0;
2053 TRACE("handle=%p process=%p addr=%p off=%x%08x size=%lx access=%x\n",
2054 handle, process, *addr_ptr, offset.u.HighPart, offset.u.LowPart, size, protect );
2056 /* Check parameters */
2058 if ((offset.u.LowPart & mask) || (*addr_ptr && ((UINT_PTR)*addr_ptr & mask)))
2059 return STATUS_INVALID_PARAMETER;
2061 if (process != NtCurrentProcess())
2064 apc_result_t result;
2066 memset( &call, 0, sizeof(call) );
2068 call.map_view.type = APC_MAP_VIEW;
2069 call.map_view.handle = handle;
2070 call.map_view.addr = *addr_ptr;
2071 call.map_view.size = *size_ptr;
2072 call.map_view.offset = offset.QuadPart;
2073 call.map_view.zero_bits = zero_bits;
2074 call.map_view.alloc_type = alloc_type;
2075 call.map_view.prot = protect;
2076 res = NTDLL_queue_process_apc( process, &call, &result );
2077 if (res != STATUS_SUCCESS) return res;
2079 if (result.map_view.status == STATUS_SUCCESS)
2081 *addr_ptr = result.map_view.addr;
2082 *size_ptr = result.map_view.size;
2084 return result.map_view.status;
2087 SERVER_START_REQ( get_mapping_info )
2089 req->handle = handle;
2090 res = wine_server_call( req );
2091 prot = reply->protect;
2093 full_size = reply->size;
2094 header_size = reply->header_size;
2095 dup_mapping = reply->mapping;
2096 shared_file = reply->shared_file;
2099 if (res) return res;
2102 if (sizeof(size) < sizeof(full_size) && (size != full_size))
2103 ERR( "Sizes larger than 4Gb (%x%08x) not supported on this platform\n",
2104 (DWORD)(full_size >> 32), (DWORD)full_size );
2106 if ((res = server_get_unix_fd( handle, 0, &unix_handle, &needs_close, NULL, NULL ))) goto done;
2108 if (prot & VPROT_IMAGE)
2112 int shared_fd, shared_needs_close;
2114 if ((res = server_get_unix_fd( shared_file, FILE_READ_DATA|FILE_WRITE_DATA,
2115 &shared_fd, &shared_needs_close, NULL, NULL ))) goto done;
2116 res = map_image( handle, unix_handle, base, size, mask, header_size,
2117 shared_fd, dup_mapping, addr_ptr );
2118 if (shared_needs_close) close( shared_fd );
2119 NtClose( shared_file );
2123 res = map_image( handle, unix_handle, base, size, mask, header_size,
2124 -1, dup_mapping, addr_ptr );
2126 if (needs_close) close( unix_handle );
2127 if (!res) *size_ptr = size;
2131 if ((offset.QuadPart >= size) || (*size_ptr > size - offset.QuadPart))
2133 res = STATUS_INVALID_PARAMETER;
2136 if (*size_ptr) size = ROUND_SIZE( offset.u.LowPart, *size_ptr );
2137 else size = size - offset.QuadPart;
2143 case PAGE_READWRITE:
2144 case PAGE_EXECUTE_READWRITE:
2145 if (!(prot & VPROT_WRITE))
2147 res = STATUS_INVALID_PARAMETER;
2152 case PAGE_WRITECOPY:
2154 case PAGE_EXECUTE_READ:
2155 case PAGE_EXECUTE_WRITECOPY:
2156 if (prot & VPROT_READ) break;
2159 res = STATUS_INVALID_PARAMETER;
2163 /* FIXME: If a mapping is created with SEC_RESERVE and a process,
2164 * which has a view of this mapping commits some pages, they will
2165 * appear committed in all other processes, which have the same
2166 * view created. Since we don't support this yet, we create the
2167 * whole mapping committed.
2169 prot |= VPROT_COMMITTED;
2171 /* Reserve a properly aligned area */
2173 server_enter_uninterrupted_section( &csVirtual, &sigset );
2175 res = map_view( &view, *addr_ptr, size, mask, FALSE, prot );
2178 server_leave_uninterrupted_section( &csVirtual, &sigset );
2184 TRACE("handle=%p size=%lx offset=%x%08x\n",
2185 handle, size, offset.u.HighPart, offset.u.LowPart );
2187 res = map_file_into_view( view, unix_handle, 0, size, offset.QuadPart, prot, !dup_mapping );
2188 if (res == STATUS_SUCCESS)
2190 *addr_ptr = view->base;
2192 view->mapping = dup_mapping;
2193 dup_mapping = 0; /* don't close it */
2197 ERR( "map_file_into_view %p %lx %x%08x failed\n",
2198 view->base, size, offset.u.HighPart, offset.u.LowPart );
2199 delete_view( view );
2202 server_leave_uninterrupted_section( &csVirtual, &sigset );
2205 if (dup_mapping) NtClose( dup_mapping );
2206 if (needs_close) close( unix_handle );
2211 /***********************************************************************
2212 * NtUnmapViewOfSection (NTDLL.@)
2213 * ZwUnmapViewOfSection (NTDLL.@)
2215 NTSTATUS WINAPI NtUnmapViewOfSection( HANDLE process, PVOID addr )
2218 NTSTATUS status = STATUS_INVALID_PARAMETER;
2220 void *base = ROUND_ADDR( addr, page_mask );
2222 if (process != NtCurrentProcess())
2225 apc_result_t result;
2227 memset( &call, 0, sizeof(call) );
2229 call.unmap_view.type = APC_UNMAP_VIEW;
2230 call.unmap_view.addr = addr;
2231 status = NTDLL_queue_process_apc( process, &call, &result );
2232 if (status == STATUS_SUCCESS) status = result.unmap_view.status;
2236 server_enter_uninterrupted_section( &csVirtual, &sigset );
2237 if ((view = VIRTUAL_FindView( base )) && (base == view->base))
2239 delete_view( view );
2240 status = STATUS_SUCCESS;
2242 server_leave_uninterrupted_section( &csVirtual, &sigset );
2247 /***********************************************************************
2248 * NtFlushVirtualMemory (NTDLL.@)
2249 * ZwFlushVirtualMemory (NTDLL.@)
2251 NTSTATUS WINAPI NtFlushVirtualMemory( HANDLE process, LPCVOID *addr_ptr,
2252 SIZE_T *size_ptr, ULONG unknown )
2255 NTSTATUS status = STATUS_SUCCESS;
2257 void *addr = ROUND_ADDR( *addr_ptr, page_mask );
2259 if (process != NtCurrentProcess())
2262 apc_result_t result;
2264 memset( &call, 0, sizeof(call) );
2266 call.virtual_flush.type = APC_VIRTUAL_FLUSH;
2267 call.virtual_flush.addr = addr;
2268 call.virtual_flush.size = *size_ptr;
2269 status = NTDLL_queue_process_apc( process, &call, &result );
2270 if (status != STATUS_SUCCESS) return status;
2272 if (result.virtual_flush.status == STATUS_SUCCESS)
2274 *addr_ptr = result.virtual_flush.addr;
2275 *size_ptr = result.virtual_flush.size;
2277 return result.virtual_flush.status;
2280 server_enter_uninterrupted_section( &csVirtual, &sigset );
2281 if (!(view = VIRTUAL_FindView( addr ))) status = STATUS_INVALID_PARAMETER;
2284 if (!*size_ptr) *size_ptr = view->size;
2286 if (msync( addr, *size_ptr, MS_SYNC )) status = STATUS_NOT_MAPPED_DATA;
2288 server_leave_uninterrupted_section( &csVirtual, &sigset );
2293 /***********************************************************************
2294 * NtReadVirtualMemory (NTDLL.@)
2295 * ZwReadVirtualMemory (NTDLL.@)
2297 NTSTATUS WINAPI NtReadVirtualMemory( HANDLE process, const void *addr, void *buffer,
2298 SIZE_T size, SIZE_T *bytes_read )
2302 SERVER_START_REQ( read_process_memory )
2304 req->handle = process;
2305 req->addr = (void *)addr;
2306 wine_server_set_reply( req, buffer, size );
2307 if ((status = wine_server_call( req ))) size = 0;
2310 if (bytes_read) *bytes_read = size;
2315 /***********************************************************************
2316 * NtWriteVirtualMemory (NTDLL.@)
2317 * ZwWriteVirtualMemory (NTDLL.@)
2319 NTSTATUS WINAPI NtWriteVirtualMemory( HANDLE process, void *addr, const void *buffer,
2320 SIZE_T size, SIZE_T *bytes_written )
2324 SERVER_START_REQ( write_process_memory )
2326 req->handle = process;
2328 wine_server_add_data( req, buffer, size );
2329 if ((status = wine_server_call( req ))) size = 0;
2332 if (bytes_written) *bytes_written = size;
2337 /***********************************************************************
2338 * NtAreMappedFilesTheSame (NTDLL.@)
2339 * ZwAreMappedFilesTheSame (NTDLL.@)
2341 NTSTATUS WINAPI NtAreMappedFilesTheSame(PVOID addr1, PVOID addr2)
2343 TRACE("%p %p\n", addr1, addr2);
2345 return STATUS_NOT_SAME_DEVICE;