diff options
| 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 | 6c6b28ea7f9fa815972f6308ab3cbb336516fecb (patch) | |
| tree | 697ba9221157c4387e6d766ae56d5e2060fba533 /src/mem-limits.h | |
| parent | c8e9dd5444cb0cc9277d92e65577035d421015d7 (diff) | |
| download | emacs-6c6b28ea7f9fa815972f6308ab3cbb336516fecb.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 */ |