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[_LIBC] (start_of_data): Use weak ref to __data_start; use &etext if not

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present.
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Roland McGrath 1995-11-16 01:46:10 +00:00
parent c8e9dd5444
commit 6c6b28ea7f
1 changed files with 4 additions and 3 deletions
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7
src/mem-limits.h
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@ -29,8 +29,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <sys/resource.h>
#define BSD4_2 /* Tell code below to use getrlimit. */
extern int __data_start;
#define start_of_data() &__data_start
/* Old Linux startup code won't define __data_start. */
extern int __data_start; weak_symbol (__data_start)
#define start_of_data() (&__data_start ?: &etext)
#else /* not _LIBC */
@ -88,7 +89,7 @@ extern char etext;
#endif
#endif
#else /* not emacs */
#else /* not emacs */
extern char etext;
#define start_of_data() &etext
#endif /* not emacs */