3 * Readelf and objdump can now display and use the contents of .debug_sup
6 * Readelf and objdump will now follow links to separate debug info files by
7 default. This behaviour can be stopped via the use of the new -wN or
8 --debug-dump=no-follow-links options for readelf and the -WN or
9 --dwarf=no-follow-links options for objdump. Also the old behaviour can be
10 restored by the use of the --enable-follow-debug-links=no configure time
13 * Nm has a new command line option: --quiet. This suppresses "no symbols"
18 * Update elfedit and readelf with LAM_U48 and LAM_U57 support.
20 * Nm has a new command line option: --ifunc-chars=CHARS. This specifies a
21 string of one or two characters. The first character is used as the type
22 character when displaying global ifunc symbols. The second character, if
23 present is used when displaying local ifunc symbols.
25 In addition a new configure time option --enable-f-for-ifunc-symbols has been
26 created, which if used will change nm's default characters for ifunc symbols
27 from i (both local and global) to F (global) and f (local).
29 * The ar tool's previously unused l modifier is now used for specifying
30 dependencies of a static library. The arguments of this option
31 (or --record-libdeps long form option) will be stored verbatim in the
32 __.LIBDEP member of the archive, which the linker may read at link time.
34 * Readelf can now display the contents of LTO symbol table sections when asked
35 to do so via the --lto-syms command line option.
37 * Readelf now accepts the -C command line option to enable the demangling of
38 symbol names. In addition the --demangle=<style>, --no-demangle,
39 --recurse-limit and --no-recurse-limit options are also now availale.
41 * Add support for the SHF_GNU_RETAIN ELF section flag.
42 This flag specifies that the section should not be garbage collected by the
47 * Changed readelf's display of symbol names when wide mode is not enabled.
48 If the name is too long it will be truncated and the last five characters
49 replaced with "[...]". The old behaviour of displaying 5 more characters but
50 not indicating that truncation has happened can be restored by the use of the
51 -T or --silent-truncation options.
53 * X86 NaCl target support is removed.
55 * The readelf tool now has a -L or --lint or --enable-checks option which turns
56 on warning messages about possible problems with the file(s) being examined.
57 These checks include things like zero-sized sections, which are allowed by
58 the ELF standard but which nevertheless might be of concern if the user
59 was expecting them to actually contain something.
63 * Binutils now supports debuginfod, an HTTP server for distributing
64 ELF/DWARF debugging information as well as source code. When built with
65 debuginfod, readelf and objdump can automatically query debuginfod
66 servers for separate debug files when they otherwise cannot be found.
67 To build binutils with debuginfod, pass --with-debuginfod to configure.
68 This requires libdebuginfod, the debuginfod client library. debuginfod
69 is distributed with elfutils, starting with version 0.178. For more
70 information see https://sourceware.org/elfutils.
72 * Add --output option to the "ar" program. This option can be used to specify
73 the output directory when extracting members from an archive.
75 * Add --keep-section option to objcopy and strip. This option keeps the
76 specified section from being removed.
78 * Add visualization of jumps inside a function by drawing an ascii character
79 graph between the address and the disassembler column. Enabled via the
80 --visualize-jumps command line option for objdump. Currently supported by
81 the x86, x86_64, and ARM targets. The output looks something like this:
83 c6: | | \----------> be 00 00 00 00 mov $0x0,%esi
84 cb: | | /----> 48 8b 3d 00 00 00 00 mov 0x0(%rip),%rdi # d2 <main+0xd2>
85 d2: | | | 31 c0 xor %eax,%eax
86 d4: | | | /-- e8 00 00 00 00 callq d9 <main+0xd9>
87 d9: | | | \-> bf 02 00 00 00 mov $0x2,%edi
88 de: | +-----------|----- e8 00 00 00 00 callq e3 <main+0xe3>
89 e3: | \-----------|----> 48 89 da mov %rbx,%rdx
90 e6: | | be 00 00 00 00 mov $0x0,%esi
91 eb: | \----- eb de jmp cb <main+0xcb>
92 ed: \-------------------> 48 8b 16 mov (%rsi),%rdx
94 Additional arguments to the --visualize-jumps option add colors to the
99 * Add --source-comment[=<txt>] option to objdump which if present,
100 provides a prefix to source code lines displayed in a disassembly.
102 * Add --set-section-alignment <section-name>=<align> option to objcopy to allow
103 the changing of section alignments.
105 * Add --verilog-data-width option to objcopy for verilog targets to control
106 width of data elements in verilog hex format.
108 * Add support for the Armv8.1-M Mainline and M-profile Vector Extension (MVE)
111 * The separate debug info file options of readelf (--debug-dump=links
112 and --debug-dump=follow) and objdump (--dwarf=links and
113 --dwarf=follow-links) will now display and/or follow multiple links if
114 more than one are present in a file. (This usually happens when gcc's
115 -gsplit-dwarf option is used).
117 In addition objdump's --dwarf=follow-links now also affects its other
118 display options, so that for example, when combined with --syms it will
119 cause the symbol tables in any linked debug info files to also be
120 displayed. In addition when combined with --disassemble the --dwarf=
121 follow-links option will ensure that any symbol tables in the linked
122 files are read and used when disassembling code in the main file.
124 * Add support for dumping types encoded in the Compact Type Format
125 to objdump and readelf.
129 * The addr2line, c++filt, nm and objdump tools now have a limit on the
130 maximum amount of recursion that is allowed whilst demangling strings.
131 The value for this limit is defined by the DEMANGLE_RECRUSE_LIMIT
132 constant declared in the include/demangle.h header file. At the time
133 of writing this constant has the value of 2048.
135 The --no-recurse-limit option can be used to remove the limit, restoring
136 the behaviour of earlier versions of these tools. This may be needed in
137 order to dmangle truly complicated names, but it also leaves the tools
138 vulnerable to stack exhaustion from maliciously constructed mangled names.
140 * Objdump's --disassemble option can now take a parameter, specifying the
141 starting symbol for disassembly. Disassembly will continue from this
142 symbol up to the next symbol or the end of the function.
144 * The MIPS port now supports the Loongson 2K1000 processor which implements
145 the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE, Loongson-ext ASE,
146 Loongson-ext2 ASE and MSA ASE instructions. Add -march=gs264e option for
147 Loongson 2K1000 processor.
149 * The MIPS port now supports the Loongson 3A2000/3A3000 processor which
150 implements the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE,
151 Loongson-ext ASE and Loongson-ext2 ASE instructions. Add -march=gs464e
152 option for Loongson 3A2000/3A3000 processor.
154 * The MIPS port now supports the Loongson 3A1000 processor, aka Loongson3a,
155 which implements the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE
156 and Loongson-ext ASE instructions. Add -march=gs464 option for Loongson
157 3A1000 processor, The -march=loongson3a is an alias of -march=gs464 for
160 * The size tool now has a new output format '--format=GNU' or '-G'. The
161 results are displayed in a similar manor to the default berkeley layout,
162 except read-only data is counted in the data column, not the text column.
163 Additionally the total is only included once.
167 * Add support for disassembling netronome Flow Processor (NFP) firmware files.
169 * The AArch64 port now supports showing disassembly notes which are emitted
170 when inconsistencies are found with the instruction that may result in the
171 instruction being invalid. These can be turned on with the option -M notes
174 * The AArch64 port now emits warnings when a combination of an instruction and
175 a named register could be invalid.
177 * Added O modifier to ar to display member offsets inside an archive
181 * Add --debug-dump=links option to readelf and --dwarf=links option to objdump
182 which displays the contents of any .gnu_debuglink or .gnu_debugaltlink
185 Add a --debug-dump=follow-links option to readelf and a --dwarf=follow-links
186 option to objdump which causes indirect links into separate debug info files
187 to be followed when dumping other DWARF sections.
191 * The MIPS port now supports microMIPS eXtended Physical Addressing (XPA)
192 instructions for assembly and disassembly.
194 * The MIPS port now supports the microMIPS Release 5 ISA for assembly and
197 * The MIPS port now supports the Imagination interAptiv MR2 processor,
198 which implements the MIPS32r3 ISA, the MIPS16e2 ASE as well as a couple
199 of implementation-specific regular MIPS and MIPS16e2 ASE instructions.
201 * The SPARC port now supports the SPARC M8 processor, which implements the
202 Oracle SPARC Architecture 2017.
204 * The MIPS port now supports the MIPS16e2 ASE for assembly and disassembly.
206 * Add support for ELF SHF_GNU_MBIND and PT_GNU_MBIND_XXX.
208 * Add support for the wasm32 ELF conversion of the WebAssembly file format.
210 * Add --inlines option to objdump, which extends the --line-numbers option
211 so that inlined functions will display their nesting information.
213 * Add --merge-notes options to objcopy to reduce the size of notes in
214 a binary file by merging and deleting redundant notes.
216 * Add support for locating separate debug info files using the build-id
217 method, where the separate file has a name based upon the build-id of
222 * This version of binutils fixes a problem with PowerPC VLE 16A and 16D
223 relocations which were functionally swapped, for example,
224 R_PPC_VLE_HA16A performed like R_PPC_VLE_HA16D while R_PPC_VLE_HA16D
225 performed like R_PPC_VLE_HA16A. This could have been fixed by
226 renumbering relocations, which would keep object files created by an
227 older version of gas compatible with a newer ld. However, that would
228 require an ABI update, affecting other assemblers and linkers that
229 create and process the relocations correctly. It is recommended that
230 all VLE object files be recompiled, but ld can modify the relocations
231 if --vle-reloc-fixup is passed to ld. If the new ld command-line
232 option is not used, ld will ld warn on finding relocations inconsistent
233 with the instructions being relocated.
235 * The nm program has a new command-line option (--with-version-strings)
236 which will display a symbol's version information, if any, after the
239 * The ARC port of objdump now accepts a -M option to specify the extra
240 instruction class(es) that should be disassembled.
242 * The --remove-section option for objcopy and strip now accepts section
243 patterns starting with an exclamation point to indicate a non-matching
244 section. A non-matching section is removed from the set of sections
245 matched by an earlier --remove-section pattern.
247 * The --only-section option for objcopy now accepts section patterns
248 starting with an exclamation point to indicate a non-matching section.
249 A non-matching section is removed from the set of sections matched by
250 an earlier --only-section pattern.
252 * New --remove-relocations=SECTIONPATTERN option for objcopy and strip.
253 This option can be used to remove sections containing relocations.
254 The SECTIONPATTERN is the section to which the relocations apply, not
255 the relocation section itself.
259 * Add a configure option, --enable-64-bit-archive, to force use of a
260 64-bit format when creating an archive symbol index.
262 * Add --elf-stt-common= option to objcopy for ELF targets to control
263 whether to convert common symbols to the STT_COMMON type.
267 * Add option to objcopy to insert new symbols into a file:
268 --add-symbol <name>=[<section>:]<value>[,<flags>]
270 * Add support for the ARC EM/HS, and ARC600/700 architectures.
272 * Extend objcopy --compress-debug-sections option to support
273 --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF
276 * Add --update-section option to objcopy.
278 * Add --output-separator option to strings.
282 * Add --data option to strings to only print strings in loadable, initialized
283 data sections. Change the default behaviour to be --all, but add a new
284 configure time option of --disable-default-strings-all to restore the old
287 * Add --include-all-whitespace to strings.
289 * Add --dump-section option to objcopy.
291 * Add support for the Andes NDS32.
295 * Objcopy now supports wildcard characters in command-line options that take
298 * Add support for Altera Nios II.
302 * Add support for the VLE extension to the PowerPC architecture.
304 * Add support for x64 Windows target of the delayed-load-library.
306 * Add support for the Renesas RL78 architecture.
310 * Add support for displaying the contents of .debug.macro sections.
312 * Add --preprocessor-arg option to windres to specify additional options
313 passed to preprocessor.
315 * Add --dwarf-start and --dwarf-end to readelf and objdump. These are used by
316 the new Emacs mode, see dwarf-mode.el.
318 * Add support for the Tilera TILEPro and TILE-Gx architectures.
322 * Add --interleave-width option to objcopy to allowing copying a range of
323 bytes from the input to the output with the --interleave option.
325 * Add support for the TMS320C6000 (TI C6X) processor family.
327 * Readelf can now display ARM unwind tables (.ARM.exidx / .ARM.extab) using
328 the -u / --unwind option.
330 * Add --dyn-syms to readelf to dump dynamic symbol table.
332 * A new tool - elfedit - has been added to directly manipulate ELF format
335 * Add to dlltool .def file feature of aliasing PE internal symbol name by
338 * Add a new command-line option -a / --addresses to addr2line to display the
339 address before function name or source filename.
341 * Add a new command-line option -p / --pretty-print to addr2line to have
342 a more human readable output.
344 * The hppa/som targets can now be compiled on any host.
348 * Add support for delay importing to dlltool. Use the --output-delaylib <file>
349 switch to create a delay-import library. The resulting app will load the dll
350 as soon as the first function is called. It will link to __delayLoadHelper2()
351 from the static delayimp library, which will import LoadLibraryA and
352 GetProcAddress from kernel32.
354 * Add a new command-line option, --insn-width=WIDTH, to objdump to specify
355 number of bytes to be displayed on a single line when disassembling
358 * Readelf can now display the relocated contents of a section as a sequence
359 of bytes via the --relocated-dump=<name|number> command-line option.
361 * The gprof program has been given a new command-line option:
362 --external-symbols-table=<filename> which reads in symbols from a specified
365 * The plugin target has been added to bfd. It can load the same shared objects
366 used by gold and uses them to provide basic support for new file formats.
368 * The verilog memory hex dump file format is now supported as an output format
371 * Add --file-alignment, --heap, --image-base, --section-alignment,
372 --stack and --subsystem command-line options to objcopy, which will
373 set PE optional header.
375 * Option --dwarf/-W of objdump is now as flexible as readelf --debug-dump/-w.
377 * --as-needed now links in a dynamic library if it satisfies undefined
378 symbols in regular objects, or in other dynamic libraries. In the
379 latter case the library is not linked if it is found in a DT_NEEDED
380 entry of one of the libraries already linked.
382 * Added --prefix=PREFIX and --prefix-strip=LEVEL switches to objdump to
383 add absolute paths for -S.
385 * Add new option --use-nul-prefixed-import-tables to dlltool to allow fall-
386 back to old import table generation with null element prefix.
388 * Added --identify-strict switch to cause --identify <implib> to
389 report an error when the import library is associated with
392 * Added --identify <implib> option to dlltool, which determines the
393 name of the DLL associated with the specified <implib>.
395 * Support for PowerPC booke64 instructions has been removed. The assembler no
396 longer accepts -mbooke32 or -mbooke64 and the disassembler no longer accepts
397 -Mbooke32 or -Mbooke64. Instead, -mbooke and -Mbooke should be used.
401 * Added -wL switch to dump decoded contents of .debug_line.
403 * Added support for "thin" archives which contain pathnames pointing to
404 object files rather than the files themselves and which contain a
405 flattened symbol index for all objects, and archives, which have been
406 added to the archive.
408 * Added -F switch to objdump to include file offsets in the disassembly.
410 * Added -c switch to readelf to allow string dumps of archive symbol index.
412 * Support for SSE5 has been added to the i386 port.
414 * Added -p switch to readelf to allow string dumps of sections.
418 * Resolved 37 coding problems in bfd including static array overruns, null
419 pointer dereferences and use of a malloc buffer after it has been freed, as
420 revealed by static analysis donated by Coverity, Inc. (http://scan.coverity.com).
422 * The binutils sources are now released under version 3 of the GNU General
425 * A new tool "windmc" has been added for some targets. This is a message
426 compiler which attempts to be compatible with the MS version.
428 * Add codepage support to the windres tool. It now supports many new
429 resource types (e.g. MANIFEST, TOOLBAR, etc). The output generation
430 for binary files is done now via bfd itself. The endianess problems
431 for different hosts are solved. Dumps of .res files can now be
432 re-compiled by windres without lossing resources or compilation errors.
433 Some problems on dialog resource translations are corrected.
435 * Add --extract-symbol command-line option to objcopy, which will
436 strip everything out of an ordinary object file or executable except
437 for its symbol table. Files containing just symbols can be useful
442 * Add "-x NAME" to readelf in addition to "-x NUMBER".
444 * Add -i and -t switches to cxxfilt. -i disables the display of implementation
445 specific extra demangling information (if any) and -t disables the demangling
448 * Add support for the "@<file>" syntax to the command lines of all tools, so
449 that extra switches can be read from <file>.
451 * Add "-W/--dwarf" to objdump to display the contents of the DWARF
454 * Add "-t/--section-details" to readelf to display section details.
455 "-N/--full-section-name" is deprecated.
457 * powerpc-linux ld now supports a variant form of PLT and GOT for the security
458 conscious. This form will automatically be chosen when ld detects that all
459 code in regular object files was generated by gcc -msecure-plt. The old PLT
460 and GOT may be forced by a new ld option, --bss-plt.
462 * Add "-i/--inlines" to addr2line to print enclosing scope information
463 for inlined function chains, back to first non-inlined function.
465 * Add "-N/--full-section-name" to readelf to display full section name.
467 * Add "-M entry:<addr>" switch to objdump to specify a function entry address
468 when disassembling VAX binaries.
470 * Add "--globalize-symbol <name>" and "--globalize-symbols <filename>" switches
471 to objcopy to convert local symbols into global symbols.
473 * gprof now allows input files to have histogram records for
474 several memory ranges, provided those ranges are disjoint.
478 * Add "-g/--section-groups" to readelf to display section groups.
480 * objcopy recognizes two new options --strip-unneeded-symbol and
481 --strip-unneeded-symbols, namely for use together with the wildcard
482 matching the original --strip-symbol/--strip-symbols provided, but
483 retaining any symbols matching but needed by relocations.
485 * readelf can now display address ranges from .debug_range sections. This
486 happens automatically when a DW_AT_range attribute is encountered. The
487 command-line switch --debug-dump=Ranges (or -wR) can also be used to display
488 the contents of the .debug_range section.
490 * nm and objdump now have a switch "--special-syms" to enable the displaying of
491 symbols which the target considers to be special. By default these symbols
492 are no longer displayed. Currently the only special symbols are the Mapping
493 symbols used by the ARM port to mark transitions between text and data and
494 between ARM and THUMB code.
496 * dlltool has a switch "--ext-prefix-alias <prefix>" to generate additional
497 import and export symbols with <preifx> prepended to them.
501 * objcopy for MIPS targets now accepts "-M no-aliases" as an option to the
502 disassembler to print the "raw" mips instruction mnemonic instead of some
503 pseudo instruction name. I.E. print "daddu" or "or" instead of "move",
504 "sll" instead of "nop", etc.
506 * objcopy and strip can now take wildcard patterns in symbol names specified on
507 the command line provided that the --wildcard switch is used to enable them.
509 * readelf can now parse archives.
511 * objdump now accepts --debugging-tags to print the debug information in a
512 format compatible with ctags tool.
514 * objcopy and strip now accept --only-keep-debug to create a file containing
515 those sections that would be stripped out by --strip-debug. The idea is that
516 this can be used in conjunction with the --add-gnu-debuglink switch to create
517 a two part program distribution - one a stripped executable and the other the
520 * objcopy now accepts --add-gnu-debuglink=<file> to insert a .gnu_debuglink
521 section into a (presumably stripped) executable. This allows the debug
522 information for the file to be held in a separate file.
524 * BFD marks the sections .comment and .note as 'n' in the BSD/POSIX
525 single-character representation. This can be checked by running nm
530 * Added --info switch to objcopy and strip.
532 * Support for Vitesse IQ2000 added by Red Hat.
534 * Added 'S' encoding to strings to allow the display of 8-bit characters.
536 * Added --prefix-symbols=<text>, --prefix-sections=<text> and
537 --prefix-alloc-sections=<text> to objcopy.
539 * readelf can handle the extensions to the DWARF2 spec used by the Unified
542 * BFD no longer declares a "boolean" type, to avoid clashes with other
543 headers that declare the same. Users of BFD should replace boolean,
544 false and true, with int, 0 and 1, or define their own boolean type.
546 * Support for IP2K added by Denis Chertykov.
550 * Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400
553 Changes in version 2.12:
555 * Support for Don Knuth's MMIX, by Hans-Peter Nilsson.
557 * size: Add --totals to display summary of sizes (Berkeley format only).
559 * readelf: Add --wide option to not break section header or segment listing
560 lines to fit into 80 columns.
562 * strings: Add --encoding to display wide character strings. By Markus Kuhn.
564 * objcopy: Add --rename-section to change section names.
566 * readelf: Support added for DWARF 2.1 extensions. Support added for
567 displaying the contents of .debug.macinfo sections.
569 * New command-line switches added to objcopy to allow symbols to be kept as
570 global symbols, and also to specify files containing lists of such symbols.
573 * Support for OpenRISC by Johan Rydberg.
575 * New command-line switch to objcopy --alt-machine-code which creates a binary
576 with an alternate machine code if one is defined in the architecture
577 description. Only supported for ELF targets. By Alexandre Oliva.
579 * New command-line switch to objcopy -B (or --binary-architecture) which sets
580 the architecture of the output file to the given argument. This option only
581 makes sense, if the input target is binary. Otherwise it is ignored.
584 * Support for PDP-11 by Lars Brinkhoff.
586 Changes in binutils 2.11:
588 * Add support for ARM v5t and v5te architectures and Intel's XScale ARM
591 * Add --srec-len and --srec-forceS3 command-line switch to objcopy.
594 * Support for the MIPS32, by Anders Norlander.
596 * Support for the i860, by Jason Eckhardt.
598 * Support for CRIS (Axis Communications ETRAX series).
600 Changes in binutils 2.10:
602 * Support for 64-bit ELF on HPPA.
604 * New command-line switch to objdump --file-start-context which shows the
605 entire file contents up to the source line first encountered for a given
608 * New command-line switch to objdump -M (or --disassembler-options) which takes
609 a parameter which can then be interpreted on a per-target basis by the
610 disassembler. Used by ARM targets to select register name sets, ISA, APCS or
613 * objdump support for -mi386:intel which causes disassembly to be displayed
616 * New program: readelf. This displays the contents of ELF format files,
617 regardless of target machine.
619 * objcopy now takes --change-section-lma, --change-section-vma, and
620 --change-section-address options. The old --adjust-section-vma option is
621 equivalent to --change-section-address. The other --adjust-* options are now
622 renamed to --change-*, although --adjust-* continues to work.
624 * objcopy has a --redefine-sym option that lets you rename symbols.
626 * objcopy now takes a -j/--only-section option to copy only the specified
629 * dlltool now supports the IMPORTS command.
631 * dlltool now takes --export-all-symbols, --no-export-all-symbols,
632 --exclude-symbols, and --no-default-excludes options.
634 Changes in binutils 2.9:
636 * Added windres program, which can be used to manipulate resources in WIN32
637 files as used on Windows 95 and Windows NT.
639 * The objcopy --gap-fill and --pad-to options operate on the LMA rather than
640 the VMA of the sections.
642 * Added S modifier to ar to not build a symbol table.
644 Changes in binutils 2.8:
646 * The objdump disassembly format has been changed, and hopefully improved. Use
647 the new --prefix-addresses option to get the old format. There are also new
648 --disassemble-zeroes and --no-show-raw-insn options which affect disassembler
651 * Formats may now be specified as configuration triplets. For example,
652 objdump -b i386-pc-linux. The triplets are not passed through config.sub,
653 so they must be in canonical form.
655 * Added new addr2line program. This uses the debugging information to convert
656 an address into a file name and line number within a program.
658 * Added --change-leading-char argument to objcopy.
660 * Added --weaken argument to objcopy.
662 * objdump --dynamic-reloc now works on ELF executables and shared libraries.
664 * Added --adjust-vma option to objdump.
666 * Added -C/--demangle option to objdump.
668 * Added -p/--preserve-dates option to strip and objcopy.
670 Changes in binutils 2.7:
672 * Added --enable-shared and --enable-commonbfdlib options to configure.
674 * Added --debugging argument to objdump and objcopy.
676 * Added --defined-only argument to nm.
678 * Added --remove-leading-char argument to objcopy.
680 * The objdump --line-numbers option is now meaningful with --reloc.
682 * Added --line-numbers option to nm.
684 * Added --endian/-EB/-EL option to objdump.
686 * Added support for Alpha OpenVMS/AXP.
688 Changes in binutils 2.6:
690 * Added -N/--strip-symbol and -K/--keep-symbol arguments to strip and objcopy.
692 * Added several arguments to objcopy to provide some control over how the new
693 file is laid out in memory. Also added binary output format to BFD to permit
694 generating plain binary files.
696 * Added --start-address and --stop-address options to objdump.
698 * ar and ranlib now work on AIX. The tools are now built by default on AIX.
700 Changes in binutils 2.5:
702 * Changed objdump -dr to dump the relocs interspersed with the assembly
703 listing, for a more useful listing of relocatable files.
705 * Changed objdump -d/--disassemble to only disassemble SEC_CODE sections.
706 Added -D/--disassemble-all option to disassemble all sections.
708 * Added --size-sort option to nm.
710 * strip and objcopy should now be able to handle dynamically linked ELF
713 Changes in binutils 2.4:
715 * Support for HP-PA (by Jeff Law), i386 Mach (by David Mackenzie), RS/6000 and
716 PowerPC (except ar and ranlib; by Ian Taylor).
718 * Support for Irix 5.
720 * Programs `strip' and `objcopy' will not attempt to write dynamically linked
721 ELF output files, since BFD currently can't create them properly.
723 Changes in binutils 2.3:
725 * A new --stabs argument has been added to objdump to dump stabs sections in
728 * A new program, nlmconv, has been added. It can convert object files into
729 Novell NetWare Loadable Modules.
731 * The strings program has been added.
733 Changes in binutils 2.2:
735 * The 'copy' program has been renamed to 'objcopy', for consistency with
736 'objdump', and because 'copy' might more plausibly be used as a synonym for
739 * The new stand-alone program c++filt is a filter that converts encoded
740 (mangled) C++ assembly-level identifiers to user-level names. (Note: This
741 may get moved to the gcc distribution.)
743 * nm -o on an archive now prefixes each line with the archive name, matching
744 the output from BSD nm.
746 * ar (and ld) can now read (but not write) BSD4.4-style archives.
748 * New support for H8500, Z8000, and the Hitach SH.
750 * Dis-assembler interface changed to allow sharing with gdb.
752 * There is new Elf code, but it is not yet ready for general use.
754 * There is the beginnings of a test suite.
756 Changes in binutils 2.1:
758 * There is now support for writing ECOFF files, so ld and the other utilities
759 should work on Risc/Ultrix and Irix. Please let us know how well this works.
761 * ar now automatically creates a symbol table (a __.SYMDEF member, in the BSD
762 version), if there are any object files in the archive. So running ranlib is
763 now redundant (unless the non-standard q command is used). This is required
764 for Posix.2 conformance.
766 * The archive-reading code now reads both BSD-style and SYSV-style archives
767 independently of the selected target format. This is to encourage people to
768 switch to SYSV-format, which has a number of advantages.
770 * The strip and copy programs now have options to remove debug-symbols only
771 and/or local symbols only. They now also support long options.
774 Copyright (C) 2012-2021 Free Software Foundation, Inc.
776 Copying and distribution of this file, with or without modification,
777 are permitted in any medium without royalty provided the copyright
778 notice and this notice are preserved.