diff options
Diffstat (limited to 'gcc/crtstuff.c')
| -rw-r--r-- | gcc/crtstuff.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/gcc/crtstuff.c b/gcc/crtstuff.c index 1619e65d55c..c4a437a28ef 100644 --- a/gcc/crtstuff.c +++ b/gcc/crtstuff.c @@ -52,6 +52,7 @@ Boston, MA 02111-1307, USA. */ compiled for the target, and hence definitions concerning only the host do not apply. */ +#include "auto-host.h" #include "tm.h" #include "tsystem.h" @@ -132,7 +133,17 @@ typedef void (*func_ptr) (void); #ifdef OBJECT_FORMAT_ELF /* Declare the __dso_handle variable. It should have a unique value - in every shared-object; in a main program its value is zero. */ + in every shared-object; in a main program its value is zero. The + object should in any case be protected. This means the instance + in one DSO or the main program is not used in another object. The + dynamic linker takes care of this. */ + +/* XXX Ideally the following should be implemented using + __attribute__ ((__visibility__ ("hidden"))) + but the __attribute__ support is not yet there. */ +#ifdef HAVE_GAS_HIDDEN +asm (".hidden\t__dso_handle"); +#endif #ifdef CRTSTUFFS_O void *__dso_handle = &__dso_handle; |