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libwine: On Mac, don't manually exclude the stack when reserving above the user space limit. 

Since we don't rely on trial and error, there's no advantage to this heuristic.

Signed-off-by: Ken Thomases <ken@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Ken Thomases 2019-03-06 18:59:39 -06:00 committed by Alexandre Julliard
parent 4a89dd1b4d
commit abfa6784ab
1 changed files with 8 additions and 1 deletions
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9
libs/wine/mmap.c
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@ -55,7 +55,9 @@ struct reserved_area
};
static struct list reserved_areas = LIST_INIT(reserved_areas);
#ifndef __APPLE__
static const unsigned int granularity_mask = 0xffff; /* reserved areas have 64k granularity */
#endif
#ifndef MAP_NORESERVE
#define MAP_NORESERVE 0
@ -419,8 +421,10 @@ void mmap_init(void)
#ifdef __i386__
struct reserved_area *area;
struct list *ptr;
#ifndef __APPLE__
char stack;
char * const stack_ptr = &stack;
#endif
char *user_space_limit = (char *)0x7ffe0000;
reserve_malloc_space( 8 * 1024 * 1024 );
@ -444,6 +448,7 @@ void mmap_init(void)
}
}
#ifndef __APPLE__
if (stack_ptr >= user_space_limit)
{
char *end = 0;
@ -457,7 +462,9 @@ void mmap_init(void)
#endif
reserve_area( base, end );
}
else reserve_area( user_space_limit, 0 );
else
#endif
reserve_area( user_space_limit, 0 );
/* reserve the DOS area if not already done */