ELF Tool Chain

Revision: 2891
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2891&view=rev
Author:   kaiwang27
Date:     2013-01-15 23:04:55 +0000 (Tue, 15 Jan 2013)
Log Message:
-----------
* Symbols converted to "local" by version script can not be overridden.
* The linker doesn't need to create PLT for function symbols that can
  not be overridden, when it generates a DSO.

Modified Paths:
--------------
    trunk/ld/amd64.c
    trunk/ld/ld_reloc.c
    trunk/ld/ld_symbols.c

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Revision: 2892
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2892&view=rev
Author:   kaiwang27
Date:     2013-01-15 23:05:08 +0000 (Tue, 15 Jan 2013)
Log Message:
-----------
*_RELATIVE relocation can be generated instead of *_GLOB_DAT
relocation for symbols that can not be overridden.

Modified Paths:
--------------
    trunk/ld/amd64.c
    trunk/ld/ld_dynamic.c
    trunk/ld/ld_output.c
    trunk/ld/ld_reloc.c
    trunk/ld/ld_reloc.h

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Revision: 2893
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2893&view=rev
Author:   kaiwang27
Date:     2013-01-15 23:05:16 +0000 (Tue, 15 Jan 2013)
Log Message:
-----------
Symbols referenced only by *_RELATIVE relocations don't need to be
added to the dynamic symbol table.

Modified Paths:
--------------
    trunk/ld/amd64.c
    trunk/ld/ld_reloc.c

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Revision: 2894
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2894&view=rev
Author:   kaiwang27
Date:     2013-01-15 23:05:24 +0000 (Tue, 15 Jan 2013)
Log Message:
-----------
Add support for "--print-gc-sections" and "--no-print-gc-sections"
options.

Modified Paths:
--------------
    trunk/ld/ld.h
    trunk/ld/ld_options.c
    trunk/ld/ld_options.h

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Revision: 2895
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2895&view=rev
Author:   kaiwang27
Date:     2013-01-15 23:05:31 +0000 (Tue, 15 Jan 2013)
Log Message:
-----------
Add utility function "ld_info" which emits linker information to
stdout.

Modified Paths:
--------------
    trunk/ld/ld.h
    trunk/ld/ld_error.c

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Revision: 2896
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2896&view=rev
Author:   kaiwang27
Date:     2013-01-15 23:05:41 +0000 (Tue, 15 Jan 2013)
Log Message:
-----------
Add support for command line options "--gc-sections" and
"--no-gc-sections".

Modified Paths:
--------------
    trunk/ld/ld.h
    trunk/ld/ld_options.c

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Revision: 2897
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2897&view=rev
Author:   kaiwang27
Date:     2013-01-15 23:05:50 +0000 (Tue, 15 Jan 2013)
Log Message:
-----------
Implement function "ld_reloc_gc_sections" that performs a breadth-first
search for sections referenced by relocations associated with "used"
sections, i.e, to find sections that should not be garbage-collected.
The initial set of "used" sections consists of sections containing
the entry symbol and extern (-u) symbols. The search is recursive:
"used" sections found are inserted to the set and their relocations
will be used to search for more "used" sections.

Modified Paths:
--------------
    trunk/ld/ld.h
    trunk/ld/ld_input.h
    trunk/ld/ld_reloc.c
    trunk/ld/ld_reloc.h

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Revision: 2898
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2898&view=rev
Author:   kaiwang27
Date:     2013-01-15 23:05:59 +0000 (Tue, 15 Jan 2013)
Log Message:
-----------
When garbage collection (option "--gc-sections") is enabled:
* Do not add unused (garbage) sections to the output object.
* Relocation scan is deferred until search for garbage sections
  is finished.

Modified Paths:
--------------
    trunk/ld/ld_layout.c
    trunk/ld/ld_main.c
    trunk/ld/ld_reloc.c
    trunk/ld/ld_reloc.h

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Revision: 2907
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2907&view=rev
Author:   kaiwang27
Date:     2013-02-03 06:05:54 +0000 (Sun, 03 Feb 2013)
Log Message:
-----------
Implement .eh_frame optimization: eliminate duplicate Common
Information Entries collected from input objects when generating
output .eh_frame section, so that the linker will produce smaller
output object.

Modified Paths:
--------------
    trunk/ld/Makefile
    trunk/ld/ld.h
    trunk/ld/ld_layout.c
    trunk/ld/ld_output.c

Added Paths:
-----------
    trunk/ld/ld_ehframe.c
    trunk/ld/ld_ehframe.h

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Revision: 2909
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2909&view=rev
Author:   kaiwang27
Date:     2013-02-03 06:06:09 +0000 (Sun, 03 Feb 2013)
Log Message:
-----------
Add support for "--eh-frame-hdr" command line option.

Modified Paths:
--------------
    trunk/ld/ld.h
    trunk/ld/ld_options.c

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Revision: 2910
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2910&view=rev
Author:   kaiwang27
Date:     2013-02-03 06:06:23 +0000 (Sun, 03 Feb 2013)
Log Message:
-----------
Implement support for creating ".eh_frame_hdr" output section.

Modified Paths:
--------------
    trunk/ld/Makefile
    trunk/ld/ld.h
    trunk/ld/ld_ehframe.c
    trunk/ld/ld_ehframe.h
    trunk/ld/ld_input.h
    trunk/ld/ld_layout.c
    trunk/ld/ld_main.c
    trunk/ld/ld_output.c
    trunk/ld/ld_output.h

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Revision: 2913
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2913&view=rev
Author:   kaiwang27
Date:     2013-02-16 07:15:24 +0000 (Sat, 16 Feb 2013)
Log Message:
-----------
Generate DT_RELCOUNT/DT_RELACOUNT if the linker emits *_RELATIVE
dynamic relocations.

Modified Paths:
--------------
    trunk/ld/amd64.c
    trunk/ld/ld.h
    trunk/ld/ld_arch.h
    trunk/ld/ld_dynamic.c
    trunk/ld/ld_reloc.c

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Revision: 2915
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2915&view=rev
Author:   kaiwang27
Date:     2013-02-16 07:15:43 +0000 (Sat, 16 Feb 2013)
Log Message:
-----------
* Do not create .interp section for shared libraries.
* Do not emit PT_PHDR or PT_INTERP program headers for shared libraries.

Modified Paths:
--------------
    trunk/ld/ld_dynamic.c
    trunk/ld/ld_layout.c
    trunk/ld/ld_output.c

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Revision: 2916
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2916&view=rev
Author:   kaiwang27
Date:     2013-02-16 07:15:52 +0000 (Sat, 16 Feb 2013)
Log Message:
-----------
Emit PT_GNU_EH_FRAME segment when command line option "--eh-frame-hdr"
is specified.

Modified Paths:
--------------
    trunk/ld/ld_ehframe.c
    trunk/ld/ld_layout.c
    trunk/ld/ld_output.c
    trunk/ld/ld_output.h

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Revision: 2917
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2917&view=rev
Author:   kaiwang27
Date:     2013-02-16 07:16:02 +0000 (Sat, 16 Feb 2013)
Log Message:
-----------
When generating dynamic objects:
* Link .dynamic section to .dynstr section.
* Link .hash section to .dynsym section.

Modified Paths:
--------------
    trunk/ld/ld_dynamic.c
    trunk/ld/ld_hash.c
    trunk/ld/ld_layout.c
    trunk/ld/ld_output.c
    trunk/ld/ld_output.h
    trunk/ld/ld_symver.c

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Revision: 2918
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2918&view=rev
Author:   kaiwang27
Date:     2013-02-16 07:16:10 +0000 (Sat, 16 Feb 2013)
Log Message:
-----------
Make sure "sh_info" field of .dynamic section header is set to the
index of the first non-local symbol in the dynamic symbol table.

Modified Paths:
--------------
    trunk/ld/ld_dynamic.c
    trunk/ld/ld_symbols.c

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Revision: 2919
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2919&view=rev
Author:   kaiwang27
Date:     2013-02-16 07:16:18 +0000 (Sat, 16 Feb 2013)
Log Message:
-----------
Use fixed maximum number of internal section to simplify the code and
to avoid bugs like refering to invalid internal section pointers after
the internal section array buffer is reallocated.

Modified Paths:
--------------
    trunk/ld/ld_input.c
    trunk/ld/ld_input.h

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Revision: 2920
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2920&view=rev
Author:   kaiwang27
Date:     2013-02-16 07:16:27 +0000 (Sat, 16 Feb 2013)
Log Message:
-----------
Use a flag to indicate whether an input section need to apply
relocations.

Modified Paths:
--------------
    trunk/ld/ld_input.h
    trunk/ld/ld_layout.c
    trunk/ld/ld_output.c

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Revision: 2923
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2923&view=rev
Author:   kaiwang27
Date:     2013-03-17 22:53:23 +0000 (Sun, 17 Mar 2013)
Log Message:
-----------
Sort dynamic relocations to make the runtime linker run faster.

Modified Paths:
--------------
    trunk/ld/ld_output.c
    trunk/ld/ld_reloc.c

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Revision: 2924
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2924&view=rev
Author:   kaiwang27
Date:     2013-03-17 22:53:36 +0000 (Sun, 17 Mar 2013)
Log Message:
-----------
Introduce a path type and add support for different types of paths.

Modified Paths:
--------------
    trunk/ld/ld.h
    trunk/ld/ld_main.c
    trunk/ld/ld_options.c
    trunk/ld/ld_path.c
    trunk/ld/ld_path.h
    trunk/ld/ld_script_parser.y

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Revision: 2925
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2925&view=rev
Author:   kaiwang27
Date:     2013-03-17 22:53:44 +0000 (Sun, 17 Mar 2013)
Log Message:
-----------
Add support for "-rpath" and "-rpath-link" options.

Modified Paths:
--------------
    trunk/ld/ld_options.c
    trunk/ld/ld_path.c
    trunk/ld/ld_path.h

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Revision: 2926
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2926&view=rev
Author:   kaiwang27
Date:     2013-03-17 22:53:54 +0000 (Sun, 17 Mar 2013)
Log Message:
-----------
Emit DT_RPATH entry when the "-rpath" command line option is
specified.

Modified Paths:
--------------
    trunk/ld/ld_dynamic.c
    trunk/ld/ld_options.c
    trunk/ld/ld_output.h
    trunk/ld/ld_path.c
    trunk/ld/ld_path.h

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Revision: 2930
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2930&view=rev
Author:   kaiwang27
Date:     2013-03-17 22:54:26 +0000 (Sun, 17 Mar 2013)
Log Message:
-----------
Load symbols from shared libraries referenced by the DT_NEEDED entries
found in previously loaded shared libraries.

Modified Paths:
--------------
    trunk/ld/ld_dynamic.c
    trunk/ld/ld_file.c
    trunk/ld/ld_file.h
    trunk/ld/ld_path.c
    trunk/ld/ld_path.h

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Revision: 2940
          http://elftoolchain.svn.sourceforge.net/elftoolchain/?rev=2940&view=rev
Author:   kaiwang27
Date:     2013-05-04 22:22:10 +0000 (Sat, 04 May 2013)
Log Message:
-----------
Add support for SHT_GROUP (section group) sections. SHT_GROUP sections
are treated especially and should not appear in the output executable
or shared library.

Modified Paths:
--------------
    trunk/ld/ld.h
    trunk/ld/ld_input.c
    trunk/ld/ld_input.h
    trunk/ld/ld_symbols.c

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