28 lines
479 B
C
28 lines
479 B
C
/*
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* Version of sbrk for no operating system.
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*/
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#include "config.h"
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#include <_ansi.h>
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#include <_syslist.h>
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#include <sys/types.h>
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#include <errno.h>
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#undef errno
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extern int errno;
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caddr_t
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_DEFUN (_sbrk, (incr),
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int incr)
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{
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extern char end; /* set by linker */
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static char *heap_end;
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char *prev_heap_end;
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if (heap_end == 0) {
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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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return (caddr_t) prev_heap_end;
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}
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