2009年10月19日

[installer 2110] binutils-2.20

binutils-2.20 出ています。

gold が新たに加わっています。元々は Google で開発されて、その後 FSF に
寄贈された ELF リンカだそうです。

☆ binutils-2.20
http://www.gnu.org/software/binutils/
http://ftp.gnu.org/gnu/binutils/binutils-2.20.tar.gz

ftp://ftp.gnu.org/gnu/binutils/binutils-2.20.tar.gz

[binutils]
Changes in 2.20:

* Add support for delay importing to dlltool. Use the --output-delaylib <file>
switch to create a delay-import library. The resulting app will load the dll
as soon as the first function is called. It will link to __delayLoadHelper2()
from the static delayimp library, which will import LoadLibraryA and
GetProcAddress from kernel32.

* Add a new command line option, --insn-width=WIDTH, to objdump to specify
number of bytes to be displayed on a single line when disassembling
instructions.

* Readelf can now display the relocated contents of a section as a sequence
of bytes via the --relocated-dump=<name|number> command line option.

* The gprof program has been given a new command line option:
--external-symbols-table=<filename> which reads in symbols from a specified
file.

* The plugin target has been added to bfd. It can load the same shared objects
used by gold and uses them to provide basic support for new file formats.

* The verilog memory hex dump file format is now supported as an output format
for objcopy.

* Add --file-alignment, --heap, --image-base, --section-alignment,
--stack and --subsystem command line options to objcopy, which will
set PE optional header.

* Option --dwarf/-W of objdump is now as flexible as readelf --debug-dump/-w.

* --as-needed now links in a dynamic library if it satisfies undefined
symbols in regular objects, or in other dynamic libraries. In the
latter case the library is not linked if it is found in a DT_NEEDED
entry of one of the libraries already linked.

* Added --prefix=PREFIX and --prefix-strip=LEVEL switches to objdump to
add absolute paths for -S.

* Add new option --use-nul-prefixed-import-tables to dlltool to allow fall-
back to old import table generation with null element prefix.

* Added --identify-strict switch to cause --identify <implib> to
report an error when the import library is associated with
multiple DLLs.

* Added --identify <implib> option to dlltool, which determines the
name of the DLL associated with the specified <implib>.

* Support for PowerPC booke64 instructions has been removed. The assembler no
longer accepts -mbooke32 or -mbooke64 and the disassembler no longer accepts
-Mbooke32 or -Mbooke64. Instead, -mbooke and -Mbooke should be used.

[gas]
Changes in 2.20:

* GNU/Linux targets now supports "gnu_unique_object" as a value in the .type
pseudo op. It marks the symbol as being globally unique in the entire
process.

* ARM assembler now supports .inst[.nw] pseudo-ops to insert opcodes specified
in binary rather than text.

* Add support for common symbol alignment to PE formats.

* Add support for the new discriminator column in the DWARF line table,
with a discriminator operand for the .loc directive.

* Add support for Sunplus score architecture.

* The .type pseudo-op now accepts a type of STT_GNU_IFUNC which can be used to
indicate that if the symbol is the target of a relocation, its value should
not be use. Instead the function should be invoked and its result used as
the value.

* Add support for Lattice Mico32 (lm32) architecture.

* Add support for Xilinx MicroBlaze architecture.

[gold]
* gold added to GNU binutils.

[ld]
Changes in 2.20:

* GNU/Linux targets now support the STB_GNU_UNIQUE symbol binding. This is a
GNU extension to the standard set of ELF symbol bindings. The binding will
be passed on to the dynamic linker which will make sure that in the entire
process there is just one symbol with the given name and type in use.

* PE targets now support a GNU extension to allow the alignment of common
common symbols to be specified. This support uses custom options in
the .drectve section, which will be disregarded by the native tools.

* PE targets now add primitive support for ELF version scripts; symbols
are not versioned, but the local and global symbol visibility directives
are respected when filtering symbols in auto-export mode.

* New option --no-export-dynamic to undo the effect of the -E and
--export-dynamic options.

* ELF: --warn-alternate-em option to warn if an object has alternate
ELF machine code.

* New script function REGION_ALIAS to add alias names to memory regions.

* PE targets no longer make use of the long section names PE extension to
the COFF format when generating executable images, by default. The old
(slightly non-conformant) behaviour can still be invoked by using the
new '--enable-long-section-names' command-line option. It is also enabled
automatically in the presence of un-stripped debug information, as GDB
needs to be able to find the debug info sections by their full names.

* For GNU/Linux systems the linker will now avoid processing any relocations
made against symbols of the STT_GNU_IFUNC type and instead emit them into
the resulting binary for processing by the loader.

* --as-needed now links in a dynamic library if it satisfies undefined
symbols in regular objects, or in other dynamic libraries. In the
latter case the library is not linked if it is found in a DT_NEEDED
entry of one of the libraries already linked.

* Add a new command line option, -Ttext-segment ADDR, for ELF targets
to set the address of the first byte of the text segment.

* Add support for Sunplus score architecture.

* Add new option --use-nul-prefixed-import-tables to ld for PE targets to
allow fallback to old import table generation with null element prefix.

* Windows PE systems now support a new --exclude-modules-for-implib option,
allowing users to partition object files and archive members between a DLL
and its associated import library as they are generated during linking.

* Add support for Lattice Mico32 (lm32) architecture.

* Add CR16 ELF --embedded-relocs (used to embedded relocations into binaries
for Embedded-PIC code) option.

* Add to the PE/PE+ targets the support of two different kinds of
pseudo-relocations. They can be selected by the switches
--enable-runtime-pseudo-reloc-v1 and --enable-runtime-pseudo-reloc-v2.
For the switch --enable-runtime-pseudo-reloc it uses for 32-bit
runtime pseudo relocation version one, for 64-bit the version two.

----
こがよういちろう


投稿者 xml-rpc : 2009年10月19日 14:01
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