84 lines
		
	
	
		
			973 B
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			84 lines
		
	
	
		
			973 B
		
	
	
	
		
			C
		
	
	
	
#include <sys/types.h>
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#include <sys/stat.h>
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static char *heap_end = 0;
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int
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brk (void *ptr)
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{
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  heap_end = ptr;
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  return 0;
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}
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caddr_t
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sbrk (int amt)
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{
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  extern char 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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  prev_heap_end = heap_end;
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  heap_end += amt;
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  return ((caddr_t) prev_heap_end);
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}
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int
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isatty (int file)
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{
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  return file<3;
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}
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int
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fstat (int file, struct stat *st)
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{
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  st->st_mode = S_IFCHR;
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  return 0;
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}
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int
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stat (const char *__restrict filename, struct stat *__restrict st)
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{
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  st->st_mode = S_IFCHR;
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  return 0;
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}
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int
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lseek (int fd, off_t offset, int type)
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{
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  return _sys_lseek (fd, offset, type);
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}
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int
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open (char *file, int mode, int perms)
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{
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  return _sys_open (file, mode, perms);
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}
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int
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close (int fd)
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{
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  return _sys_close (fd);
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}
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int
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getpid ()
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{
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  return -1;
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}
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int
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kill (int pid, int signal)
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{
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  exit (signal);
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}
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#if 0
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/* This conflicts with the abort defined in newlib.  */
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void
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abort ()
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{
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  exit (6);
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}
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#endif
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