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authorNathan Sidwell <nathan@codesourcery.com>2011-05-16 11:34:48 +0000
committerNathan Sidwell <nathan@codesourcery.com>2011-05-16 11:34:48 +0000
commitf37a7048a8608dcc4465a4b425cc4fd3b0f9e1cd (patch)
treebb4270f85ebc2ceb174a8325d81921c0b0bc5058 /ld/ldexp.c
parent27d0bed645075a5aad861d6a9f62a373d45ac176 (diff)
downloadbinutils-gdb-f37a7048a8608dcc4465a4b425cc4fd3b0f9e1cd.tar.gz
* ldlang.c (print_assignment): Use the symbol's section if we
use its value. * ldexp.c (exp_fold_tree_1): Skip self-assignment. Expand comment on copying symbol type.
Diffstat (limited to 'ld/ldexp.c')
-rw-r--r--ld/ldexp.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/ld/ldexp.c b/ld/ldexp.c
index f70634c5c61..68617d8553f 100644
--- a/ld/ldexp.c
+++ b/ld/ldexp.c
@@ -832,6 +832,8 @@ exp_fold_tree_1 (etree_type *tree)
}
else
{
+ etree_type *name;
+
struct bfd_link_hash_entry *h = NULL;
if (tree->type.node_class == etree_provide)
@@ -849,6 +851,23 @@ exp_fold_tree_1 (etree_type *tree)
}
}
+ name = tree->assign.src;
+ if (name->type.node_class == etree_trinary)
+ {
+ exp_fold_tree_1 (name->trinary.cond);
+ if (expld.result.valid_p)
+ name = (expld.result.value
+ ? name->trinary.lhs : name->trinary.rhs);
+ }
+
+ if (name->type.node_class == etree_name
+ && name->type.node_code == NAME
+ && strcmp (tree->assign.dst, name->name.name) == 0)
+ /* Leave it alone. Do not replace a symbol with its own
+ output address, in case there is another section sizing
+ pass. Folding does not preserve input sections. */
+ break;
+
exp_fold_tree_1 (tree->assign.src);
if (expld.result.valid_p
|| (expld.phase == lang_first_phase_enum
@@ -876,7 +895,8 @@ exp_fold_tree_1 (etree_type *tree)
tree->type.node_class = etree_provided;
/* Copy the symbol type if this is a simple assignment of
- one symbol to annother. */
+ one symbol to another. This could be more general
+ (e.g. a ?: operator with NAMEs in each branch). */
if (tree->assign.src->type.node_class == etree_name)
{
struct bfd_link_hash_entry *hsrc;