diff options
Diffstat (limited to 'gcc/objc')
| -rw-r--r-- | gcc/objc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/objc/objc-act.c | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/gcc/objc/ChangeLog b/gcc/objc/ChangeLog index 7f43dc0..a1673cd 100644 --- a/gcc/objc/ChangeLog +++ b/gcc/objc/ChangeLog @@ -1,3 +1,8 @@ +2010-02-18 Iain Sandoe <iain.sandoe@sandoe-acoustics.co.uk> + Mike Stump <mikestump@comcast.net> + + * objc-act.c (finish_var_decl): Set the generated symbols as "used". + 2009-12-17 Shujing Zhao <pearly.zhao@oracle.com> * objc-act.c (objc_substitute_decl, build_ivar_reference, diff --git a/gcc/objc/objc-act.c b/gcc/objc/objc-act.c index 2680fd8..fae535c 100644 --- a/gcc/objc/objc-act.c +++ b/gcc/objc/objc-act.c @@ -1524,6 +1524,14 @@ finish_var_decl (tree var, tree initializer) mark_decl_referenced (var); /* Mark the decl to avoid "defined but not used" warning. */ TREE_USED (var) = 1; + /* We reserve the right for the runtime to use/modify these variables + in ways that are opaque to us. */ + DECL_PRESERVE_P (var) = 1; + /* ipa*.c/cgraphunit.c use lookup attribute rather than testing + DECL_PRESERVE_P. Once they switch to testing DECL_PRESERVE_P, + this can be removed. */ + DECL_ATTRIBUTES (var) = tree_cons (get_identifier ("used"), NULL, + DECL_ATTRIBUTES (var)) ; } /* Find the decl for the constant string class reference. This is only |