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Re: [gold commit] Fix handling of __ehdr_start
- From: Cary Coutant <ccoutant at google dot com>
- To: Binutils <binutils at sourceware dot org>
- Date: Tue, 6 May 2014 14:51:40 -0700
- Subject: Re: [gold commit] Fix handling of __ehdr_start
- Authentication-results: sourceware.org; auth=none
- References: <20140502233010 dot 1722219406F7 at ccoutant-macbookpro2 dot roam dot corp dot google dot com>
I've backported this patch to the binutils-2.24 branch.
-cary
> 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.