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ntdll: Pass the allocation size to the alloc_virtual_heap function. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2017-09-05 16:09:51 +02:00
parent 4069c4a4d1
commit eb5c187254
1 changed files with 18 additions and 11 deletions
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29
dlls/ntdll/virtual.c
View File

@ -1404,17 +1404,23 @@ static NTSTATUS map_image( HANDLE hmapping, int fd, char *base, SIZE_T total_siz
} }
struct alloc_virtual_heap
{
void *base;
size_t size;
};
/* callback for wine_mmap_enum_reserved_areas to allocate space for the virtual heap */ /* callback for wine_mmap_enum_reserved_areas to allocate space for the virtual heap */
static int alloc_virtual_heap( void *base, size_t size, void *arg ) static int alloc_virtual_heap( void *base, size_t size, void *arg )
{ {
void **heap_base = arg; struct alloc_virtual_heap *alloc = arg;
if (is_beyond_limit( base, size, address_space_limit )) address_space_limit = (char *)base + size; if (is_beyond_limit( base, size, address_space_limit )) address_space_limit = (char *)base + size;
if (size < VIRTUAL_HEAP_SIZE) return 0; if (size < alloc->size) return 0;
if (is_win64 && base < (void *)0x80000000) return 0; if (is_win64 && base < (void *)0x80000000) return 0;
*heap_base = wine_anon_mmap( (char *)base + size - VIRTUAL_HEAP_SIZE, alloc->base = wine_anon_mmap( (char *)base + size - alloc->size, alloc->size,
VIRTUAL_HEAP_SIZE, PROT_READ|PROT_WRITE, MAP_FIXED ); PROT_READ|PROT_WRITE, MAP_FIXED );
return (*heap_base != (void *)-1); return (alloc->base != (void *)-1);
} }
/*********************************************************************** /***********************************************************************
@ -1423,7 +1429,7 @@ static int alloc_virtual_heap( void *base, size_t size, void *arg )
void virtual_init(void) void virtual_init(void)
{ {
const char *preload; const char *preload;
void *heap_base; struct alloc_virtual_heap alloc_heap;
size_t size; size_t size;
struct file_view *heap_view; struct file_view *heap_view;
@ -1447,13 +1453,14 @@ void virtual_init(void)
} }
/* try to find space in a reserved area for the virtual heap */ /* try to find space in a reserved area for the virtual heap */
if (!wine_mmap_enum_reserved_areas( alloc_virtual_heap, &heap_base, 1 )) alloc_heap.size = VIRTUAL_HEAP_SIZE;
heap_base = wine_anon_mmap( NULL, VIRTUAL_HEAP_SIZE, PROT_READ|PROT_WRITE, 0 ); if (!wine_mmap_enum_reserved_areas( alloc_virtual_heap, &alloc_heap, 1 ))
alloc_heap.base = wine_anon_mmap( NULL, alloc_heap.size, PROT_READ|PROT_WRITE, 0 );
assert( heap_base != (void *)-1 ); assert( alloc_heap.base != (void *)-1 );
virtual_heap = RtlCreateHeap( HEAP_NO_SERIALIZE, heap_base, VIRTUAL_HEAP_SIZE, virtual_heap = RtlCreateHeap( HEAP_NO_SERIALIZE, alloc_heap.base, VIRTUAL_HEAP_SIZE,
VIRTUAL_HEAP_SIZE, NULL, NULL ); VIRTUAL_HEAP_SIZE, NULL, NULL );
create_view( &heap_view, heap_base, VIRTUAL_HEAP_SIZE, VPROT_COMMITTED | VPROT_READ | VPROT_WRITE ); create_view( &heap_view, alloc_heap.base, alloc_heap.size, VPROT_COMMITTED|VPROT_READ|VPROT_WRITE );
/* make the DOS area accessible (except the low 64K) to hide bugs in broken apps like Excel 2003 */ /* make the DOS area accessible (except the low 64K) to hide bugs in broken apps like Excel 2003 */
size = (char *)address_space_start - (char *)0x10000; size = (char *)address_space_start - (char *)0x10000;