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| author | Roland McGrath <roland@gnu.org> | 1995-11-16 01:46:10 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1995-11-16 01:46:10 +0000 |
| commit | 4d6b921ffc595d02e36acb60040f6e1402e4c218 (patch) | |
| tree | 1f5aca00c73cb9d8292acb6c66ee4c58542889f0 /src/mem-limits.h | |
| parent | b914f9a1aada5ca49dd0ce79eab845c5ffd5c307 (diff) | |
| download | emacs-4d6b921ffc595d02e36acb60040f6e1402e4c218.tar.gz | |
[_LIBC] (start_of_data): Use weak ref to __data_start; use &etext if not
present.
Diffstat (limited to 'src/mem-limits.h')
| -rw-r--r-- | src/mem-limits.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/mem-limits.h b/src/mem-limits.h index e814de10f0d..c63e0b48399 100644 --- a/src/mem-limits.h +++ b/src/mem-limits.h @@ -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 */ |