diff options
Diffstat (limited to 'gcc/dbxout.c')
| -rw-r--r-- | gcc/dbxout.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/dbxout.c b/gcc/dbxout.c index 3190803..be43ed3 100644 --- a/gcc/dbxout.c +++ b/gcc/dbxout.c @@ -91,6 +91,7 @@ along with GCC; see the file COPYING3. If not see #include "langhooks.h" #include "obstack.h" #include "expr.h" +#include "cgraph.h" #ifdef XCOFF_DEBUGGING_INFO #include "xcoffout.h" @@ -2470,6 +2471,20 @@ dbxout_expand_expr (tree expr) disable debug info for these variables. */ if (!targetm.have_tls && DECL_THREAD_LOCAL_P (expr)) return NULL; + if (TREE_STATIC (expr) + && !TREE_ASM_WRITTEN (expr) + && !DECL_HAS_VALUE_EXPR_P (expr) + && !TREE_PUBLIC (expr) + && DECL_RTL_SET_P (expr) + && MEM_P (DECL_RTL (expr))) + { + /* If this is a var that might not be actually output, + return NULL, otherwise stabs might reference an undefined + symbol. */ + struct varpool_node *node = varpool_get_node (expr); + if (!node || !node->needed) + return NULL; + } /* FALLTHRU */ case PARM_DECL: |