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Rev 1357 Rev 1363
Line 67... Line 67...
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{
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{
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    return __SYSCALL1(SYS_AS_AREA_DESTROY, (sysarg_t ) address);
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    return __SYSCALL1(SYS_AS_AREA_DESTROY, (sysarg_t ) address);
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}
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}
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static size_t heapsize = 0;
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static size_t heapsize = 0;
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static size_t maxheapsize = (size_t)(-1);
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/* Start of heap linker symbol */
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/* Start of heap linker symbol */
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extern char _heap;
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extern char _heap;
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/** Sbrk emulation
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/** Sbrk emulation
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 *
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 *
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    if (incr > 0 && incr+heapsize < heapsize)
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    if (incr > 0 && incr+heapsize < heapsize)
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        return NULL;
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        return NULL;
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    /* Check for too small values */
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    /* Check for too small values */
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    if (incr < 0 && incr+heapsize > heapsize)
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    if (incr < 0 && incr+heapsize > heapsize)
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        return NULL;
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        return NULL;
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    /* Check for user limit */
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    if ((maxheapsize!=(size_t)(-1)) && (heapsize + incr)>maxheapsize) return NULL;
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    rc = as_area_resize(&_heap, heapsize + incr,0);
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    rc = as_area_resize(&_heap, heapsize + incr,0);
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    if (rc != 0)
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    if (rc != 0)
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        return NULL;
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        return NULL;
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    heapsize += incr;
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    heapsize += incr;
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    return res;
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    return res;
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}
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}
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void *set_maxheapsize(size_t mhs)
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{
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    maxheapsize=mhs;
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    /* Return pointer to area not managed by sbrk */
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    return (void *)&_heap + maxheapsize;
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- 
 
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}