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authorCary Coutant <ccoutant@google.com>2014-04-02 14:21:14 -0700
committerCary Coutant <ccoutant@google.com>2014-05-02 16:33:43 -0700
commitd1bddd3c4b9c17736bf6c59aa336670a589ca844 (patch)
tree22accc61c3d63aa3cf79facc32915548d0ad9c69 /gold/resolve.cc
parent30a1e6cc7750ce016ea70afa795c0764d07d21ae (diff)
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Fix handling of __ehdr_start when it cannot be defined.
2014-05-02 Cary Coutant <ccoutant@google.com> * defstd.cc (in_segment): Define __ehdr_start here... * layout.cc (Layout::finalize): ...Instead of here. Set the output segment when known. * resolve.cc (Symbol::override_base_with_special): Remember the original binding. * symtab.cc (Symbol::set_output_segment): New function. (Symbol::set_undefined): New function. * symtab.h (Symbol::is_weak_undefined): Check original undef binding. (Symbol::is_strong_undefined): New function. (Symbol::set_output_segment): New function. (Symbol::set_undefined): New function. * target-reloc.h (is_strong_undefined): Remove. (issue_undefined_symbol_error): Call Symbol::is_weak_undefined. Check for hidden undefs. (relocate_section): Call Symbol::is_strong_undefined. * testsuite/Makefile.am (ehdr_start_test_1) (ehdr_start_test_2, ehdr_start_test_3) (ehdr_start_test_4, ehdr_start_test_5): New test cases. * testsuite/Makefile.in: Regenerate. * testsuite/ehdr_start_def.cc: New source file. * testsuite/ehdr_start_test.cc: New source file. * testsuite/ehdr_start_test.t: New linker script. * testsuite/ehdr_start_test_4.sh: New shell script.
Diffstat (limited to 'gold/resolve.cc')
-rw-r--r--gold/resolve.cc4
1 files changed, 4 insertions, 0 deletions
diff --git a/gold/resolve.cc b/gold/resolve.cc
index 9b442e2..8cc637a 100644
--- a/gold/resolve.cc
+++ b/gold/resolve.cc
@@ -915,6 +915,10 @@ Symbol::override_base_with_special(const Symbol* from)
bool same_name = this->name_ == from->name_;
gold_assert(same_name || this->has_alias());
+ // If we are overriding an undef, remember the original binding.
+ if (this->is_undefined())
+ this->set_undef_binding(this->binding_);
+
this->source_ = from->source_;
switch (from->source_)
{