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#include <as.h>
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#include <as.h>
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#include <libc.h>
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#include <libc.h>
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#include <unistd.h>
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#include <unistd.h>
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#include <align.h>
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#include <align.h>
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#include <types.h>
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/**
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 * Either 4*256M on 32-bit architecures or 16*256M on 64-bit architectures.
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 */
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#define MAX_HEAP_SIZE   (sizeof(uintptr_t)<<28)
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/** Create address space area.
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/** Create address space area.
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 *
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 *
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 * @param address Virtual address where to place new address space area.
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 * @param address Virtual address where to place new address space area.
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 * @param size Size of the area.
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 * @param size Size of the area.
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{
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{
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    void *res;
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    void *res;
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    /* Set heapsize to some meaningful value */
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    /* Set heapsize to some meaningful value */
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    if (maxheapsize == -1)
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    if (maxheapsize == -1)
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        set_maxheapsize(ALIGN_UP(USER_ADDRESS_SPACE_SIZE_ARCH >> 1, PAGE_SIZE));
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        set_maxheapsize(MAX_HEAP_SIZE);
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    if (!last_allocated)
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    if (!last_allocated)
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        last_allocated = (void *) ALIGN_UP((void *) &_heap + maxheapsize, PAGE_SIZE);
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        last_allocated = (void *) ALIGN_UP((void *) &_heap + maxheapsize, PAGE_SIZE);
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    sz = ALIGN_UP(sz, PAGE_SIZE);
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    sz = ALIGN_UP(sz, PAGE_SIZE);