newlib/libc/reent/impure.c

   1 #include <reent.h>
   2
   3 #ifndef _REENT_THREAD_LOCAL
   4
   5 /* Redeclare these symbols locally as weak so that the file containing
   6    their definitions (along with a lot of other stuff) isn't sucked in
   7    unless they are actually used by other compilation units.  This is
   8    important to reduce image size for targets with very small amounts
   9    of memory.  */
  10 #ifdef _REENT_SMALL
  11 extern __FILE __sf[3] _ATTRIBUTE ((weak));
  12 #endif
  13
  14 struct _reent __ATTRIBUTE_IMPURE_DATA__ _impure_data = _REENT_INIT (_impure_data);
  15 #ifdef __CYGWIN__
  16 extern struct _reent reent_data __attribute__ ((alias("_impure_data")));
  17 #endif
  18 struct _reent *__ATTRIBUTE_IMPURE_PTR__ _impure_ptr = &_impure_data;
  19
  20 #endif /* _REENT_THREAD_LOCAL */