|  | -*- text -*- | 
|  |  | 
|  | * 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. | 
|  |  | 
|  | 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) 2012-2020 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: |