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[/] [openrisc/] [trunk/] [gnu-old/] [newlib-1.17.0/] [libgloss/] [iq2000/] [sbrk.c] - Blame information for rev 822

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Line No. Rev Author Line
1 148 jeremybenn
#include <_ansi.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "trap.h"
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caddr_t
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_sbrk (size_t incr)
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{
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  extern char __stack;       /* Defined by the linker */
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  extern char _end;             /* Defined by the linker */
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  static char *heap_end;
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  char *prev_heap_end;
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  char *sp = (char *)&sp;
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  if (heap_end == 0)
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    {
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      heap_end = &_end;
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    }
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  prev_heap_end = heap_end;
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  heap_end += incr;
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  if (heap_end > sp)
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    {
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      _write (1, "Heap and stack collision\n", 25);
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      errno = ENOMEM;
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      return (caddr_t)-1;
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    }
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  return (caddr_t) prev_heap_end;
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}

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