ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

libwine: Reserve memory areas for 64-bit in case we don't have a preloader.

This commit is contained in:
Alexandre Julliard 2010-12-17 13:25:41 +01:00
parent 5af634fd3b
commit ea8ee88f98
1 changed files with 16 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
libs/wine/mmap.c
View File

@ -243,8 +243,7 @@ static inline int mmap_reserve( void *addr, size_t size )
* *
* Reserve as much memory as possible in the given area. * Reserve as much memory as possible in the given area.
*/ */
#ifdef __i386__ static inline void reserve_area( void *addr, void *end )
static void reserve_area( void *addr, void *end )
{ {
size_t size = (char *)end - (char *)addr; size_t size = (char *)end - (char *)addr;
@ -294,7 +293,7 @@ static void reserve_area( void *addr, void *end )
* Solaris malloc is not smart enough to obtain space through mmap(), so try to make * Solaris malloc is not smart enough to obtain space through mmap(), so try to make
* sure that there is some available sbrk() space before we reserve other things. * sure that there is some available sbrk() space before we reserve other things.
*/ */
static void reserve_malloc_space( size_t size ) static inline void reserve_malloc_space( size_t size )
{ {
#ifdef __sun #ifdef __sun
size_t i, count = size / 1024; size_t i, count = size / 1024;
@ -309,15 +308,13 @@ static void reserve_malloc_space( size_t size )
#endif #endif
} }
#endif /* __i386__ */
/*********************************************************************** /***********************************************************************
* reserve_dos_area * reserve_dos_area
* *
* Reserve the DOS area (0x00000000-0x00110000). * Reserve the DOS area (0x00000000-0x00110000).
*/ */
static void reserve_dos_area(void) static inline void reserve_dos_area(void)
{ {
const size_t page_size = getpagesize(); const size_t page_size = getpagesize();
const size_t dos_area_size = 0x110000; const size_t dos_area_size = 0x110000;
@ -341,9 +338,9 @@ static void reserve_dos_area(void)
*/ */
void mmap_init(void) void mmap_init(void)
{ {
#ifdef __i386__
struct reserved_area *area; struct reserved_area *area;
struct list *ptr; struct list *ptr;
#ifdef __i386__
char stack; char stack;
char * const stack_ptr = &stack; char * const stack_ptr = &stack;
char *user_space_limit = (char *)0x7ffe0000; char *user_space_limit = (char *)0x7ffe0000;
@ -383,7 +380,6 @@ void mmap_init(void)
reserve_area( base, end ); reserve_area( base, end );
} }
else reserve_area( user_space_limit, 0 ); else reserve_area( user_space_limit, 0 );
#endif /* __i386__ */
/* reserve the DOS area if not already done */ /* reserve the DOS area if not already done */
@ -394,6 +390,18 @@ void mmap_init(void)
if (!area->base) return; /* already reserved */ if (!area->base) return; /* already reserved */
} }
reserve_dos_area(); reserve_dos_area();
#elif defined(__x86_64__)
if (!list_head( &reserved_areas ))
{
/* if we don't have a preloader, try to reserve the space now */
reserve_area( (void *)0x000000010000, (void *)0x000068000000 );
reserve_area( (void *)0x00007ff00000, (void *)0x00007fff0000 );
reserve_area( (void *)0x7ffffe000000, (void *)0x7fffffff0000 );
}
#endif
} }