FreeChainXenon/binutils-gdb
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Fix handling of __ehdr_start when it cannot be defined.

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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.
This commit is contained in:
Cary Coutant 2014-04-02 14:21:14 -07:00
parent 30a1e6cc77
commit d1bddd3c4b
13 changed files with 533 additions and 44 deletions
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4
gold/resolve.cc
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@ -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_)
{