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- -*- text -*-
- * Add an option to objdump and readelf to prevent attempts to access debuginfod
- servers when following links.
- * objcopy --weaken, --weaken-symbol, and --weaken-symbols now make ELF
- STB_GNU_UNIQUE symbols weak.
- * objdump now supports syntax highlighting of disassembler output for some
- architectures. Use the --disassembler-color=MODE command line flag, with
- mode being either off, color, or extended-color.
- Changes in 2.38:
- * elfedit: Add --output-abiversion option to update ABIVERSION.
- * Add support for the LoongArch instruction set.
- * Tools which display symbols or strings (readelf, strings, nm, objdump)
- have a new command line option which controls how unicode characters are
- handled. By default they are treated as normal for the tool. Using
- --unicode=locale will display them according to the current locale.
- Using --unicode=hex will display them as hex byte values, whilst
- --unicode=escape will display them as escape sequences. In addition
- using --unicode=highlight will display them as unicode escape sequences
- highlighted in red (if supported by the output device).
- * readelf -r dumps RELR relative relocations now.
- * Support for efi-app-aarch64, efi-rtdrv-aarch64 and efi-bsdrv-aarch64 has been
- added to objcopy in order to enable UEFI development using binutils.
- * ar: Add --thin for creating thin archives. -T is a deprecated alias without
- diagnostics. In many ar implementations -T has a different meaning, as
- specified by X/Open System Interface.
- Changes in 2.37:
- * The readelf tool has a new command line option which can be used to specify
- how the numeric values of symbols are reported. --sym-base=0|8|10|16 tells
- readelf to display the values in base 8, base 10 or base 16. A sym base of 0
- represents the default action of displaying values under 10000 in base 10 and
- values above that in base 16.
- * Binutils now requires a C99 compiler and library to build.
- * A new format has been added to the nm program. Specifying
- --format=just-symbols (or just using -j) will tell the program to only
- display symbol names and nothing else.
- * A new command line --keep-section-symbols has been added to objcopy and
- strip. This stops the removal of unused section symbols when the file is
- copied. Removing these symbols saves space, but sometimes they are needed by
- other tools.
- * objcopy --weaken, --weaken-symbol and --weaken-symbols now make undefined
- symbols weak on targets that support weak symbols.
- * Readelf and objdump can now display and use the contents of .debug_sup
- sections.
- * Readelf and objdump will now follow links to separate debug info files by
- default. This behaviour can be stopped via the use of the new -wN or
- --debug-dump=no-follow-links options for readelf and the -WN or
- --dwarf=no-follow-links options for objdump. Also the old behaviour can be
- restored by the use of the --enable-follow-debug-links=no configure time
- option.
- The semantics of the =follow-links option have also been slightly changed.
- When enabled, the option allows for the loading of symbol tables and string
- tables from the separate files which can be used to enhance the information
- displayed when dumping other sections, but it does not automatically imply
- that information from the separate files should be displayed.
- If other debug section display options are also enabled (eg
- --debug-dump=info) then the contents of matching sections in both the main
- file and the separate debuginfo file *will* be displayed. This is because in
- most cases the debug section will only be present in one of the files.
- If however non-debug section display options are enabled (eg --sections) then
- the contents of matching parts of the separate debuginfo file will *not* be
- displayed. This is because in most cases the user probably only wanted to
- load the symbol information from the separate debuginfo file. In order to
- change this behaviour a new command line option --process-links can be used.
- This will allow di0pslay options to applied to both the main file and any
- separate debuginfo files.
- * Nm has a new command line option: --quiet. This suppresses "no symbols"
- diagnostic.
- Changes in 2.36:
- * Update elfedit and readelf with LAM_U48 and LAM_U57 support.
- * Nm has a new command line option: --ifunc-chars=CHARS. This specifies a
- string of one or two characters. The first character is used as the type
- character when displaying global ifunc symbols. The second character, if
- present is used when displaying local ifunc symbols.
- In addition a new configure time option --enable-f-for-ifunc-symbols has been
- created, which if used will change nm's default characters for ifunc symbols
- from i (both local and global) to F (global) and f (local).
- * The ar tool's previously unused l modifier is now used for specifying
- dependencies of a static library. The arguments of this option
- (or --record-libdeps long form option) will be stored verbatim in the
- __.LIBDEP member of the archive, which the linker may read at link time.
- * Readelf can now display the contents of LTO symbol table sections when asked
- to do so via the --lto-syms command line option.
- * Readelf now accepts the -C command line option to enable the demangling of
- symbol names. In addition the --demangle=<style>, --no-demangle,
- --recurse-limit and --no-recurse-limit options are also now availale.
- * Add support for the SHF_GNU_RETAIN ELF section flag.
- This flag specifies that the section should not be garbage collected by the
- linker.
- Changes in 2.35:
- * Changed readelf's display of symbol names when wide mode is not enabled.
- If the name is too long it will be truncated and the last five characters
- replaced with "[...]". The old behaviour of displaying 5 more characters but
- not indicating that truncation has happened can be restored by the use of the
- -T or --silent-truncation options.
- * X86 NaCl target support is removed.
- * The readelf tool now has a -L or --lint or --enable-checks option which turns
- on warning messages about possible problems with the file(s) being examined.
- These checks include things like zero-sized sections, which are allowed by
- the ELF standard but which nevertheless might be of concern if the user
- was expecting them to actually contain something.
- Changes in 2.34:
- * Binutils now supports debuginfod, an HTTP server for distributing
- ELF/DWARF debugging information as well as source code. When built with
- debuginfod, readelf and objdump can automatically query debuginfod
- servers for separate debug files when they otherwise cannot be found.
- To build binutils with debuginfod, pass --with-debuginfod to configure.
- This requires libdebuginfod, the debuginfod client library. debuginfod
- is distributed with elfutils, starting with version 0.178. For more
- information see https://sourceware.org/elfutils.
- * Add --output option to the "ar" program. This option can be used to specify
- the output directory when extracting members from an archive.
- * Add --keep-section option to objcopy and strip. This option keeps the
- specified section from being removed.
- * Add visualization of jumps inside a function by drawing an ascii character
- graph between the address and the disassembler column. Enabled via the
- --visualize-jumps command line option for objdump. Currently supported by
- the x86, x86_64, and ARM targets. The output looks something like this:
- c6: | | \----------> be 00 00 00 00 mov $0x0,%esi
- cb: | | /----> 48 8b 3d 00 00 00 00 mov 0x0(%rip),%rdi # d2 <main+0xd2>
- d2: | | | 31 c0 xor %eax,%eax
- d4: | | | /-- e8 00 00 00 00 callq d9 <main+0xd9>
- d9: | | | \-> bf 02 00 00 00 mov $0x2,%edi
- de: | +-----------|----- e8 00 00 00 00 callq e3 <main+0xe3>
- e3: | \-----------|----> 48 89 da mov %rbx,%rdx
- e6: | | be 00 00 00 00 mov $0x0,%esi
- eb: | \----- eb de jmp cb <main+0xcb>
- ed: \-------------------> 48 8b 16 mov (%rsi),%rdx
- Additional arguments to the --visualize-jumps option add colors to the
- output.
- Changes in 2.33:
- * Add --source-comment[=<txt>] option to objdump which if present,
- provides a prefix to source code lines displayed in a disassembly.
- * Add --set-section-alignment <section-name>=<align> option to objcopy to allow
- the changing of section alignments.
- * Add --verilog-data-width option to objcopy for verilog targets to control
- width of data elements in verilog hex format.
- * Add support for the Armv8.1-M Mainline and M-profile Vector Extension (MVE)
- instructions.
- * The separate debug info file options of readelf (--debug-dump=links
- and --debug-dump=follow) and objdump (--dwarf=links and
- --dwarf=follow-links) will now display and/or follow multiple links if
- more than one are present in a file. (This usually happens when gcc's
- -gsplit-dwarf option is used).
- In addition objdump's --dwarf=follow-links now also affects its other
- display options, so that for example, when combined with --syms it will
- cause the symbol tables in any linked debug info files to also be
- displayed. In addition when combined with --disassemble the --dwarf=
- follow-links option will ensure that any symbol tables in the linked
- files are read and used when disassembling code in the main file.
- * Add support for dumping types encoded in the Compact Type Format
- to objdump and readelf.
- Changes in 2.32:
- * The addr2line, c++filt, nm and objdump tools now have a limit on the
- maximum amount of recursion that is allowed whilst demangling strings.
- The value for this limit is defined by the DEMANGLE_RECRUSE_LIMIT
- constant declared in the include/demangle.h header file. At the time
- of writing this constant has the value of 2048.
- The --no-recurse-limit option can be used to remove the limit, restoring
- the behaviour of earlier versions of these tools. This may be needed in
- order to dmangle truly complicated names, but it also leaves the tools
- vulnerable to stack exhaustion from maliciously constructed mangled names.
- * Objdump's --disassemble option can now take a parameter, specifying the
- starting symbol for disassembly. Disassembly will continue from this
- symbol up to the next symbol or the end of the function.
- * The MIPS port now supports the Loongson 2K1000 processor which implements
- the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE, Loongson-ext ASE,
- Loongson-ext2 ASE and MSA ASE instructions. Add -march=gs264e option for
- Loongson 2K1000 processor.
- * The MIPS port now supports the Loongson 3A2000/3A3000 processor which
- implements the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE,
- Loongson-ext ASE and Loongson-ext2 ASE instructions. Add -march=gs464e
- option for Loongson 3A2000/3A3000 processor.
- * The MIPS port now supports the Loongson 3A1000 processor, aka Loongson3a,
- which implements the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE
- and Loongson-ext ASE instructions. Add -march=gs464 option for Loongson
- 3A1000 processor, The -march=loongson3a is an alias of -march=gs464 for
- compatibility.
- * The size tool now has a new output format '--format=GNU' or '-G'. The
- results are displayed in a similar manor to the default berkeley layout,
- except read-only data is counted in the data column, not the text column.
- Additionally the total is only included once.
- Changes in 2.31:
- * Add support for disassembling netronome Flow Processor (NFP) firmware files.
- * The AArch64 port now supports showing disassembly notes which are emitted
- when inconsistencies are found with the instruction that may result in the
- instruction being invalid. These can be turned on with the option -M notes
- to objdump.
- * The AArch64 port now emits warnings when a combination of an instruction and
- a named register could be invalid.
- * Added O modifier to ar to display member offsets inside an archive
- Changes in 2.30:
- * Add --debug-dump=links option to readelf and --dwarf=links option to objdump
- which displays the contents of any .gnu_debuglink or .gnu_debugaltlink
- sections.
- Add a --debug-dump=follow-links option to readelf and a --dwarf=follow-links
- option to objdump which causes indirect links into separate debug info files
- to be followed when dumping other DWARF sections.
- Changes in 2.29:
- * The MIPS port now supports microMIPS eXtended Physical Addressing (XPA)
- instructions for assembly and disassembly.
- * The MIPS port now supports the microMIPS Release 5 ISA for assembly and
- disassembly.
- * The MIPS port now supports the Imagination interAptiv MR2 processor,
- which implements the MIPS32r3 ISA, the MIPS16e2 ASE as well as a couple
- of implementation-specific regular MIPS and MIPS16e2 ASE instructions.
- * The SPARC port now supports the SPARC M8 processor, which implements the
- Oracle SPARC Architecture 2017.
- * The MIPS port now supports the MIPS16e2 ASE for assembly and disassembly.
- * Add support for ELF SHF_GNU_MBIND and PT_GNU_MBIND_XXX.
- * Add support for the wasm32 ELF conversion of the WebAssembly file format.
- * Add --inlines option to objdump, which extends the --line-numbers option
- so that inlined functions will display their nesting information.
- * Add --merge-notes options to objcopy to reduce the size of notes in
- a binary file by merging and deleting redundant notes.
- * Add support for locating separate debug info files using the build-id
- method, where the separate file has a name based upon the build-id of
- the original file.
- Changes in 2.28:
- * This version of binutils fixes a problem with PowerPC VLE 16A and 16D
- relocations which were functionally swapped, for example,
- R_PPC_VLE_HA16A performed like R_PPC_VLE_HA16D while R_PPC_VLE_HA16D
- performed like R_PPC_VLE_HA16A. This could have been fixed by
- renumbering relocations, which would keep object files created by an
- older version of gas compatible with a newer ld. However, that would
- require an ABI update, affecting other assemblers and linkers that
- create and process the relocations correctly. It is recommended that
- all VLE object files be recompiled, but ld can modify the relocations
- if --vle-reloc-fixup is passed to ld. If the new ld command-line
- option is not used, ld will ld warn on finding relocations inconsistent
- with the instructions being relocated.
- * The nm program has a new command-line option (--with-version-strings)
- which will display a symbol's version information, if any, after the
- symbol's name.
- * The ARC port of objdump now accepts a -M option to specify the extra
- instruction class(es) that should be disassembled.
- * The --remove-section option for objcopy and strip now accepts section
- patterns starting with an exclamation point to indicate a non-matching
- section. A non-matching section is removed from the set of sections
- matched by an earlier --remove-section pattern.
- * The --only-section option for objcopy now accepts section patterns
- starting with an exclamation point to indicate a non-matching section.
- A non-matching section is removed from the set of sections matched by
- an earlier --only-section pattern.
- * New --remove-relocations=SECTIONPATTERN option for objcopy and strip.
- This option can be used to remove sections containing relocations.
- The SECTIONPATTERN is the section to which the relocations apply, not
- the relocation section itself.
- Changes in 2.27:
- * Add a configure option, --enable-64-bit-archive, to force use of a
- 64-bit format when creating an archive symbol index.
- * Add --elf-stt-common= option to objcopy for ELF targets to control
- whether to convert common symbols to the STT_COMMON type.
- Changes in 2.26:
- * Add option to objcopy to insert new symbols into a file:
- --add-symbol <name>=[<section>:]<value>[,<flags>]
- * Add support for the ARC EM/HS, and ARC600/700 architectures.
- * Extend objcopy --compress-debug-sections option to support
- --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF
- targets.
- * Add --update-section option to objcopy.
- * Add --output-separator option to strings.
- Changes in 2.25:
- * Add --data option to strings to only print strings in loadable, initialized
- data sections. Change the default behaviour to be --all, but add a new
- configure time option of --disable-default-strings-all to restore the old
- default behaviour.
- * Add --include-all-whitespace to strings.
- * Add --dump-section option to objcopy.
- * Add support for the Andes NDS32.
- Changes in 2.24:
- * Objcopy now supports wildcard characters in command-line options that take
- section names.
- * Add support for Altera Nios II.
- Changes in 2.23:
- * Add support for the VLE extension to the PowerPC architecture.
- * Add support for x64 Windows target of the delayed-load-library.
- * Add support for the Renesas RL78 architecture.
- Changes in 2.22:
- * Add support for displaying the contents of .debug.macro sections.
- * Add --preprocessor-arg option to windres to specify additional options
- passed to preprocessor.
- * Add --dwarf-start and --dwarf-end to readelf and objdump. These are used by
- the new Emacs mode, see dwarf-mode.el.
- * Add support for the Tilera TILEPro and TILE-Gx architectures.
- changes in 2.21:
- * Add --interleave-width option to objcopy to allowing copying a range of
- bytes from the input to the output with the --interleave option.
- * Add support for the TMS320C6000 (TI C6X) processor family.
- * Readelf can now display ARM unwind tables (.ARM.exidx / .ARM.extab) using
- the -u / --unwind option.
- * Add --dyn-syms to readelf to dump dynamic symbol table.
- * A new tool - elfedit - has been added to directly manipulate ELF format
- binaries.
- * Add to dlltool .def file feature of aliasing PE internal symbol name by
- '== <ID>' option.
- * Add a new command-line option -a / --addresses to addr2line to display the
- address before function name or source filename.
- * Add a new command-line option -p / --pretty-print to addr2line to have
- a more human readable output.
- * The hppa/som targets can now be compiled on any host.
- 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.
- Changes in 2.19:
- * Added -wL switch to dump decoded contents of .debug_line.
- * Added support for "thin" archives which contain pathnames pointing to
- object files rather than the files themselves and which contain a
- flattened symbol index for all objects, and archives, which have been
- added to the archive.
- * Added -F switch to objdump to include file offsets in the disassembly.
- * Added -c switch to readelf to allow string dumps of archive symbol index.
- * Support for SSE5 has been added to the i386 port.
- * Added -p switch to readelf to allow string dumps of sections.
- Changes in 2.18:
- * Resolved 37 coding problems in bfd including static array overruns, null
- pointer dereferences and use of a malloc buffer after it has been freed, as
- revealed by static analysis donated by Coverity, Inc. (http://scan.coverity.com).
- * The binutils sources are now released under version 3 of the GNU General
- Public License.
- * A new tool "windmc" has been added for some targets. This is a message
- compiler which attempts to be compatible with the MS version.
- * Add codepage support to the windres tool. It now supports many new
- resource types (e.g. MANIFEST, TOOLBAR, etc). The output generation
- for binary files is done now via bfd itself. The endianess problems
- for different hosts are solved. Dumps of .res files can now be
- re-compiled by windres without lossing resources or compilation errors.
- Some problems on dialog resource translations are corrected.
- * Add --extract-symbol command-line option to objcopy, which will
- strip everything out of an ordinary object file or executable except
- for its symbol table. Files containing just symbols can be useful
- to some OSes.
- Changes in 2.17:
- * Add "-x NAME" to readelf in addition to "-x NUMBER".
- * Add -i and -t switches to cxxfilt. -i disables the display of implementation
- specific extra demangling information (if any) and -t disables the demangling
- of types.
- * Add support for the "@<file>" syntax to the command lines of all tools, so
- that extra switches can be read from <file>.
- * Add "-W/--dwarf" to objdump to display the contents of the DWARF
- debug sections.
- * Add "-t/--section-details" to readelf to display section details.
- "-N/--full-section-name" is deprecated.
- * powerpc-linux ld now supports a variant form of PLT and GOT for the security
- conscious. This form will automatically be chosen when ld detects that all
- code in regular object files was generated by gcc -msecure-plt. The old PLT
- and GOT may be forced by a new ld option, --bss-plt.
- * Add "-i/--inlines" to addr2line to print enclosing scope information
- for inlined function chains, back to first non-inlined function.
- * Add "-N/--full-section-name" to readelf to display full section name.
- * Add "-M entry:<addr>" switch to objdump to specify a function entry address
- when disassembling VAX binaries.
- * Add "--globalize-symbol <name>" and "--globalize-symbols <filename>" switches
- to objcopy to convert local symbols into global symbols.
- * gprof now allows input files to have histogram records for
- several memory ranges, provided those ranges are disjoint.
- Changes in 2.16:
- * Add "-g/--section-groups" to readelf to display section groups.
- * objcopy recognizes two new options --strip-unneeded-symbol and
- --strip-unneeded-symbols, namely for use together with the wildcard
- matching the original --strip-symbol/--strip-symbols provided, but
- retaining any symbols matching but needed by relocations.
- * readelf can now display address ranges from .debug_range sections. This
- happens automatically when a DW_AT_range attribute is encountered. The
- command-line switch --debug-dump=Ranges (or -wR) can also be used to display
- the contents of the .debug_range section.
- * nm and objdump now have a switch "--special-syms" to enable the displaying of
- symbols which the target considers to be special. By default these symbols
- are no longer displayed. Currently the only special symbols are the Mapping
- symbols used by the ARM port to mark transitions between text and data and
- between ARM and THUMB code.
- * dlltool has a switch "--ext-prefix-alias <prefix>" to generate additional
- import and export symbols with <preifx> prepended to them.
- Changes in 2.15:
- * objcopy for MIPS targets now accepts "-M no-aliases" as an option to the
- disassembler to print the "raw" mips instruction mnemonic instead of some
- pseudo instruction name. I.E. print "daddu" or "or" instead of "move",
- "sll" instead of "nop", etc.
- * objcopy and strip can now take wildcard patterns in symbol names specified on
- the command line provided that the --wildcard switch is used to enable them.
- * readelf can now parse archives.
- * objdump now accepts --debugging-tags to print the debug information in a
- format compatible with ctags tool.
- * objcopy and strip now accept --only-keep-debug to create a file containing
- those sections that would be stripped out by --strip-debug. The idea is that
- this can be used in conjunction with the --add-gnu-debuglink switch to create
- a two part program distribution - one a stripped executable and the other the
- debugging info.
- * objcopy now accepts --add-gnu-debuglink=<file> to insert a .gnu_debuglink
- section into a (presumably stripped) executable. This allows the debug
- information for the file to be held in a separate file.
- * BFD marks the sections .comment and .note as 'n' in the BSD/POSIX
- single-character representation. This can be checked by running nm
- with the -a switch.
- Changes in 2.14:
- * Added --info switch to objcopy and strip.
- * Support for Vitesse IQ2000 added by Red Hat.
- * Added 'S' encoding to strings to allow the display of 8-bit characters.
- * Added --prefix-symbols=<text>, --prefix-sections=<text> and
- --prefix-alloc-sections=<text> to objcopy.
- * readelf can handle the extensions to the DWARF2 spec used by the Unified
- Parallel C compiler.
- * BFD no longer declares a "boolean" type, to avoid clashes with other
- headers that declare the same. Users of BFD should replace boolean,
- false and true, with int, 0 and 1, or define their own boolean type.
- * Support for IP2K added by Denis Chertykov.
- Changes in 2.13:
- * Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400
- and FR500 included.
- Changes in version 2.12:
- * Support for Don Knuth's MMIX, by Hans-Peter Nilsson.
- * size: Add --totals to display summary of sizes (Berkeley format only).
- * readelf: Add --wide option to not break section header or segment listing
- lines to fit into 80 columns.
- * strings: Add --encoding to display wide character strings. By Markus Kuhn.
- * objcopy: Add --rename-section to change section names.
- * readelf: Support added for DWARF 2.1 extensions. Support added for
- displaying the contents of .debug.macinfo sections.
- * New command-line switches added to objcopy to allow symbols to be kept as
- global symbols, and also to specify files containing lists of such symbols.
- by Honda Hiroki.
- * Support for OpenRISC by Johan Rydberg.
- * New command-line switch to objcopy --alt-machine-code which creates a binary
- with an alternate machine code if one is defined in the architecture
- description. Only supported for ELF targets. By Alexandre Oliva.
- * New command-line switch to objcopy -B (or --binary-architecture) which sets
- the architecture of the output file to the given argument. This option only
- makes sense, if the input target is binary. Otherwise it is ignored.
- By Stefan Geuken.
- * Support for PDP-11 by Lars Brinkhoff.
- Changes in binutils 2.11:
- * Add support for ARM v5t and v5te architectures and Intel's XScale ARM
- extenstions.
- * Add --srec-len and --srec-forceS3 command-line switch to objcopy.
- By Luciano Gemme.
- * Support for the MIPS32, by Anders Norlander.
- * Support for the i860, by Jason Eckhardt.
- * Support for CRIS (Axis Communications ETRAX series).
- Changes in binutils 2.10:
- * Support for 64-bit ELF on HPPA.
- * New command-line switch to objdump --file-start-context which shows the
- entire file contents up to the source line first encountered for a given
- file.
- * New command-line switch to objdump -M (or --disassembler-options) which takes
- a parameter which can then be interpreted on a per-target basis by the
- disassembler. Used by ARM targets to select register name sets, ISA, APCS or
- raw verions.
- * objdump support for -mi386:intel which causes disassembly to be displayed
- with intel syntax.
- * New program: readelf. This displays the contents of ELF format files,
- regardless of target machine.
- * objcopy now takes --change-section-lma, --change-section-vma, and
- --change-section-address options. The old --adjust-section-vma option is
- equivalent to --change-section-address. The other --adjust-* options are now
- renamed to --change-*, although --adjust-* continues to work.
- * objcopy has a --redefine-sym option that lets you rename symbols.
- * objcopy now takes a -j/--only-section option to copy only the specified
- sections.
- * dlltool now supports the IMPORTS command.
- * dlltool now takes --export-all-symbols, --no-export-all-symbols,
- --exclude-symbols, and --no-default-excludes options.
- Changes in binutils 2.9:
- * Added windres program, which can be used to manipulate resources in WIN32
- files as used on Windows 95 and Windows NT.
- * The objcopy --gap-fill and --pad-to options operate on the LMA rather than
- the VMA of the sections.
- * Added S modifier to ar to not build a symbol table.
- Changes in binutils 2.8:
- * The objdump disassembly format has been changed, and hopefully improved. Use
- the new --prefix-addresses option to get the old format. There are also new
- --disassemble-zeroes and --no-show-raw-insn options which affect disassembler
- output.
- * Formats may now be specified as configuration triplets. For example,
- objdump -b i386-pc-linux. The triplets are not passed through config.sub,
- so they must be in canonical form.
- * Added new addr2line program. This uses the debugging information to convert
- an address into a file name and line number within a program.
- * Added --change-leading-char argument to objcopy.
- * Added --weaken argument to objcopy.
- * objdump --dynamic-reloc now works on ELF executables and shared libraries.
- * Added --adjust-vma option to objdump.
- * Added -C/--demangle option to objdump.
- * Added -p/--preserve-dates option to strip and objcopy.
- Changes in binutils 2.7:
- * Added --enable-shared and --enable-commonbfdlib options to configure.
- * Added --debugging argument to objdump and objcopy.
- * Added --defined-only argument to nm.
- * Added --remove-leading-char argument to objcopy.
- * The objdump --line-numbers option is now meaningful with --reloc.
- * Added --line-numbers option to nm.
- * Added --endian/-EB/-EL option to objdump.
- * Added support for Alpha OpenVMS/AXP.
- Changes in binutils 2.6:
- * Added -N/--strip-symbol and -K/--keep-symbol arguments to strip and objcopy.
- * Added several arguments to objcopy to provide some control over how the new
- file is laid out in memory. Also added binary output format to BFD to permit
- generating plain binary files.
- * Added --start-address and --stop-address options to objdump.
- * ar and ranlib now work on AIX. The tools are now built by default on AIX.
- Changes in binutils 2.5:
- * Changed objdump -dr to dump the relocs interspersed with the assembly
- listing, for a more useful listing of relocatable files.
- * Changed objdump -d/--disassemble to only disassemble SEC_CODE sections.
- Added -D/--disassemble-all option to disassemble all sections.
- * Added --size-sort option to nm.
- * strip and objcopy should now be able to handle dynamically linked ELF
- executables.
- Changes in binutils 2.4:
- * Support for HP-PA (by Jeff Law), i386 Mach (by David Mackenzie), RS/6000 and
- PowerPC (except ar and ranlib; by Ian Taylor).
- * Support for Irix 5.
- * Programs `strip' and `objcopy' will not attempt to write dynamically linked
- ELF output files, since BFD currently can't create them properly.
- Changes in binutils 2.3:
- * A new --stabs argument has been added to objdump to dump stabs sections in
- ELF and COFF files.
- * A new program, nlmconv, has been added. It can convert object files into
- Novell NetWare Loadable Modules.
- * The strings program has been added.
- Changes in binutils 2.2:
- * The 'copy' program has been renamed to 'objcopy', for consistency with
- 'objdump', and because 'copy' might more plausibly be used as a synonym for
- 'cp'.
- * The new stand-alone program c++filt is a filter that converts encoded
- (mangled) C++ assembly-level identifiers to user-level names. (Note: This
- may get moved to the gcc distribution.)
- * nm -o on an archive now prefixes each line with the archive name, matching
- the output from BSD nm.
- * ar (and ld) can now read (but not write) BSD4.4-style archives.
- * New support for H8500, Z8000, and the Hitach SH.
- * Dis-assembler interface changed to allow sharing with gdb.
- * There is new Elf code, but it is not yet ready for general use.
- * There is the beginnings of a test suite.
- Changes in binutils 2.1:
- * There is now support for writing ECOFF files, so ld and the other utilities
- should work on Risc/Ultrix and Irix. Please let us know how well this works.
- * ar now automatically creates a symbol table (a __.SYMDEF member, in the BSD
- version), if there are any object files in the archive. So running ranlib is
- now redundant (unless the non-standard q command is used). This is required
- for Posix.2 conformance.
- * The archive-reading code now reads both BSD-style and SYSV-style archives
- independently of the selected target format. This is to encourage people to
- switch to SYSV-format, which has a number of advantages.
- * The strip and copy programs now have options to remove debug-symbols only
- and/or local symbols only. They now also support long options.
- Copyright (C) 2012-2022 Free Software Foundation, Inc.
- Copying and distribution of this file, with or without modification,
- are permitted in any medium without royalty provided the copyright
- notice and this notice are preserved.
- Local variables:
- fill-column: 79
- End:
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