| 1 | -*- text -*- |
| 2 | |
| 3 | * The readelf tool now has a -L or --lint or --enable-checks option which turns |
| 4 | on warning messages about possible problems with the file(s) being examined. |
| 5 | These checks include things like zero-sized sections, which are allowed by |
| 6 | the ELF standard but which nevertheless might be of concern if the user |
| 7 | was expecting them to actually contain something. |
| 8 | |
| 9 | Changes in 2.34: |
| 10 | |
| 11 | * Binutils now supports debuginfod, an HTTP server for distributing |
| 12 | ELF/DWARF debugging information as well as source code. When built with |
| 13 | debuginfod, readelf and objdump can automatically query debuginfod |
| 14 | servers for separate debug files when they otherwise cannot be found. |
| 15 | To build binutils with debuginfod, pass --with-debuginfod to configure. |
| 16 | This requires libdebuginfod, the debuginfod client library. debuginfod |
| 17 | is distributed with elfutils, starting with version 0.178. For more |
| 18 | information see https://sourceware.org/elfutils. |
| 19 | |
| 20 | * Add --output option to the "ar" program. This option can be used to specify |
| 21 | the output directory when extracting members from an archive. |
| 22 | |
| 23 | * Add --keep-section option to objcopy and strip. This option keeps the |
| 24 | specified section from being removed. |
| 25 | |
| 26 | * Add visualization of jumps inside a function by drawing an ascii character |
| 27 | graph between the address and the disassembler column. Enabled via the |
| 28 | --visualize-jumps command line option for objdump. Currently supported by |
| 29 | the x86, x86_64, and ARM targets. The output looks something like this: |
| 30 | |
| 31 | c6: | | \----------> be 00 00 00 00 mov $0x0,%esi |
| 32 | cb: | | /----> 48 8b 3d 00 00 00 00 mov 0x0(%rip),%rdi # d2 <main+0xd2> |
| 33 | d2: | | | 31 c0 xor %eax,%eax |
| 34 | d4: | | | /-- e8 00 00 00 00 callq d9 <main+0xd9> |
| 35 | d9: | | | \-> bf 02 00 00 00 mov $0x2,%edi |
| 36 | de: | +-----------|----- e8 00 00 00 00 callq e3 <main+0xe3> |
| 37 | e3: | \-----------|----> 48 89 da mov %rbx,%rdx |
| 38 | e6: | | be 00 00 00 00 mov $0x0,%esi |
| 39 | eb: | \----- eb de jmp cb <main+0xcb> |
| 40 | ed: \-------------------> 48 8b 16 mov (%rsi),%rdx |
| 41 | |
| 42 | Additional arguments to the --visualize-jumps option add colors to the |
| 43 | output. |
| 44 | |
| 45 | Changes in 2.33: |
| 46 | |
| 47 | * Add --source-comment[=<txt>] option to objdump which if present, |
| 48 | provides a prefix to source code lines displayed in a disassembly. |
| 49 | |
| 50 | * Add --set-section-alignment <section-name>=<align> option to objcopy to allow |
| 51 | the changing of section alignments. |
| 52 | |
| 53 | * Add --verilog-data-width option to objcopy for verilog targets to control |
| 54 | width of data elements in verilog hex format. |
| 55 | |
| 56 | * Add support for the Armv8.1-M Mainline and M-profile Vector Extension (MVE) |
| 57 | instructions. |
| 58 | |
| 59 | * The separate debug info file options of readelf (--debug-dump=links |
| 60 | and --debug-dump=follow) and objdump (--dwarf=links and |
| 61 | --dwarf=follow-links) will now display and/or follow multiple links if |
| 62 | more than one are present in a file. (This usually happens when gcc's |
| 63 | -gsplit-dwarf option is used). |
| 64 | |
| 65 | In addition objdump's --dwarf=follow-links now also affects its other |
| 66 | display options, so that for example, when combined with --syms it will |
| 67 | cause the symbol tables in any linked debug info files to also be |
| 68 | displayed. In addition when combined with --disassemble the --dwarf= |
| 69 | follow-links option will ensure that any symbol tables in the linked |
| 70 | files are read and used when disassembling code in the main file. |
| 71 | |
| 72 | * Add support for dumping types encoded in the Compact Type Format |
| 73 | to objdump and readelf. |
| 74 | |
| 75 | Changes in 2.32: |
| 76 | |
| 77 | * The addr2line, c++filt, nm and objdump tools now have a limit on the |
| 78 | maximum amount of recursion that is allowed whilst demangling strings. |
| 79 | The value for this limit is defined by the DEMANGLE_RECRUSE_LIMIT |
| 80 | constant declared in the include/demangle.h header file. At the time |
| 81 | of writing this constant has the value of 2048. |
| 82 | |
| 83 | The --no-recurse-limit option can be used to remove the limit, restoring |
| 84 | the behaviour of earlier versions of these tools. This may be needed in |
| 85 | order to dmangle truly complicated names, but it also leaves the tools |
| 86 | vulnerable to stack exhaustion from maliciously constructed mangled names. |
| 87 | |
| 88 | * Objdump's --disassemble option can now take a parameter, specifying the |
| 89 | starting symbol for disassembly. Disassembly will continue from this |
| 90 | symbol up to the next symbol or the end of the function. |
| 91 | |
| 92 | * The MIPS port now supports the Loongson 2K1000 processor which implements |
| 93 | the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE, Loongson-ext ASE, |
| 94 | Loongson-ext2 ASE and MSA ASE instructions. Add -march=gs264e option for |
| 95 | Loongson 2K1000 processor. |
| 96 | |
| 97 | * The MIPS port now supports the Loongson 3A2000/3A3000 processor which |
| 98 | implements the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE, |
| 99 | Loongson-ext ASE and Loongson-ext2 ASE instructions. Add -march=gs464e |
| 100 | option for Loongson 3A2000/3A3000 processor. |
| 101 | |
| 102 | * The MIPS port now supports the Loongson 3A1000 processor, aka Loongson3a, |
| 103 | which implements the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE |
| 104 | and Loongson-ext ASE instructions. Add -march=gs464 option for Loongson |
| 105 | 3A1000 processor, The -march=loongson3a is an alias of -march=gs464 for |
| 106 | compatibility. |
| 107 | |
| 108 | * The size tool now has a new output format '--format=GNU' or '-G'. The |
| 109 | results are displayed in a similar manor to the default berkeley layout, |
| 110 | except read-only data is counted in the data column, not the text column. |
| 111 | Additionally the total is only included once. |
| 112 | |
| 113 | Changes in 2.31: |
| 114 | |
| 115 | * Add support for disassembling netronome Flow Processor (NFP) firmware files. |
| 116 | |
| 117 | * The AArch64 port now supports showing disassembly notes which are emitted |
| 118 | when inconsistencies are found with the instruction that may result in the |
| 119 | instruction being invalid. These can be turned on with the option -M notes |
| 120 | to objdump. |
| 121 | |
| 122 | * The AArch64 port now emits warnings when a combination of an instruction and |
| 123 | a named register could be invalid. |
| 124 | |
| 125 | * Added O modifier to ar to display member offsets inside an archive |
| 126 | |
| 127 | Changes in 2.30: |
| 128 | |
| 129 | * Add --debug-dump=links option to readelf and --dwarf=links option to objdump |
| 130 | which displays the contents of any .gnu_debuglink or .gnu_debugaltlink |
| 131 | sections. |
| 132 | |
| 133 | Add a --debug-dump=follow-links option to readelf and a --dwarf=follow-links |
| 134 | option to objdump which causes indirect links into separate debug info files |
| 135 | to be followed when dumping other DWARF sections. |
| 136 | |
| 137 | Changes in 2.29: |
| 138 | |
| 139 | * The MIPS port now supports microMIPS eXtended Physical Addressing (XPA) |
| 140 | instructions for assembly and disassembly. |
| 141 | |
| 142 | * The MIPS port now supports the microMIPS Release 5 ISA for assembly and |
| 143 | disassembly. |
| 144 | |
| 145 | * The MIPS port now supports the Imagination interAptiv MR2 processor, |
| 146 | which implements the MIPS32r3 ISA, the MIPS16e2 ASE as well as a couple |
| 147 | of implementation-specific regular MIPS and MIPS16e2 ASE instructions. |
| 148 | |
| 149 | * The SPARC port now supports the SPARC M8 processor, which implements the |
| 150 | Oracle SPARC Architecture 2017. |
| 151 | |
| 152 | * The MIPS port now supports the MIPS16e2 ASE for assembly and disassembly. |
| 153 | |
| 154 | * Add support for ELF SHF_GNU_MBIND and PT_GNU_MBIND_XXX. |
| 155 | |
| 156 | * Add support for the wasm32 ELF conversion of the WebAssembly file format. |
| 157 | |
| 158 | * Add --inlines option to objdump, which extends the --line-numbers option |
| 159 | so that inlined functions will display their nesting information. |
| 160 | |
| 161 | * Add --merge-notes options to objcopy to reduce the size of notes in |
| 162 | a binary file by merging and deleting redundant notes. |
| 163 | |
| 164 | * Add support for locating separate debug info files using the build-id |
| 165 | method, where the separate file has a name based upon the build-id of |
| 166 | the original file. |
| 167 | |
| 168 | Changes in 2.28: |
| 169 | |
| 170 | * This version of binutils fixes a problem with PowerPC VLE 16A and 16D |
| 171 | relocations which were functionally swapped, for example, |
| 172 | R_PPC_VLE_HA16A performed like R_PPC_VLE_HA16D while R_PPC_VLE_HA16D |
| 173 | performed like R_PPC_VLE_HA16A. This could have been fixed by |
| 174 | renumbering relocations, which would keep object files created by an |
| 175 | older version of gas compatible with a newer ld. However, that would |
| 176 | require an ABI update, affecting other assemblers and linkers that |
| 177 | create and process the relocations correctly. It is recommended that |
| 178 | all VLE object files be recompiled, but ld can modify the relocations |
| 179 | if --vle-reloc-fixup is passed to ld. If the new ld command-line |
| 180 | option is not used, ld will ld warn on finding relocations inconsistent |
| 181 | with the instructions being relocated. |
| 182 | |
| 183 | * The nm program has a new command-line option (--with-version-strings) |
| 184 | which will display a symbol's version information, if any, after the |
| 185 | symbol's name. |
| 186 | |
| 187 | * The ARC port of objdump now accepts a -M option to specify the extra |
| 188 | instruction class(es) that should be disassembled. |
| 189 | |
| 190 | * The --remove-section option for objcopy and strip now accepts section |
| 191 | patterns starting with an exclamation point to indicate a non-matching |
| 192 | section. A non-matching section is removed from the set of sections |
| 193 | matched by an earlier --remove-section pattern. |
| 194 | |
| 195 | * The --only-section option for objcopy now accepts section patterns |
| 196 | starting with an exclamation point to indicate a non-matching section. |
| 197 | A non-matching section is removed from the set of sections matched by |
| 198 | an earlier --only-section pattern. |
| 199 | |
| 200 | * New --remove-relocations=SECTIONPATTERN option for objcopy and strip. |
| 201 | This option can be used to remove sections containing relocations. |
| 202 | The SECTIONPATTERN is the section to which the relocations apply, not |
| 203 | the relocation section itself. |
| 204 | |
| 205 | Changes in 2.27: |
| 206 | |
| 207 | * Add a configure option, --enable-64-bit-archive, to force use of a |
| 208 | 64-bit format when creating an archive symbol index. |
| 209 | |
| 210 | * Add --elf-stt-common= option to objcopy for ELF targets to control |
| 211 | whether to convert common symbols to the STT_COMMON type. |
| 212 | |
| 213 | Changes in 2.26: |
| 214 | |
| 215 | * Add option to objcopy to insert new symbols into a file: |
| 216 | --add-symbol <name>=[<section>:]<value>[,<flags>] |
| 217 | |
| 218 | * Add support for the ARC EM/HS, and ARC600/700 architectures. |
| 219 | |
| 220 | * Extend objcopy --compress-debug-sections option to support |
| 221 | --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF |
| 222 | targets. |
| 223 | |
| 224 | * Add --update-section option to objcopy. |
| 225 | |
| 226 | * Add --output-separator option to strings. |
| 227 | |
| 228 | Changes in 2.25: |
| 229 | |
| 230 | * Add --data option to strings to only print strings in loadable, initialized |
| 231 | data sections. Change the default behaviour to be --all, but add a new |
| 232 | configure time option of --disable-default-strings-all to restore the old |
| 233 | default behaviour. |
| 234 | |
| 235 | * Add --include-all-whitespace to strings. |
| 236 | |
| 237 | * Add --dump-section option to objcopy. |
| 238 | |
| 239 | * Add support for the Andes NDS32. |
| 240 | |
| 241 | Changes in 2.24: |
| 242 | |
| 243 | * Objcopy now supports wildcard characters in command-line options that take |
| 244 | section names. |
| 245 | |
| 246 | * Add support for Altera Nios II. |
| 247 | |
| 248 | Changes in 2.23: |
| 249 | |
| 250 | * Add support for the VLE extension to the PowerPC architecture. |
| 251 | |
| 252 | * Add support for x64 Windows target of the delayed-load-library. |
| 253 | |
| 254 | * Add support for the Renesas RL78 architecture. |
| 255 | |
| 256 | Changes in 2.22: |
| 257 | |
| 258 | * Add support for displaying the contents of .debug.macro sections. |
| 259 | |
| 260 | * Add --preprocessor-arg option to windres to specify additional options |
| 261 | passed to preprocessor. |
| 262 | |
| 263 | * Add --dwarf-start and --dwarf-end to readelf and objdump. These are used by |
| 264 | the new Emacs mode, see dwarf-mode.el. |
| 265 | |
| 266 | * Add support for the Tilera TILEPro and TILE-Gx architectures. |
| 267 | |
| 268 | changes in 2.21: |
| 269 | |
| 270 | * Add --interleave-width option to objcopy to allowing copying a range of |
| 271 | bytes from the input to the output with the --interleave option. |
| 272 | |
| 273 | * Add support for the TMS320C6000 (TI C6X) processor family. |
| 274 | |
| 275 | * Readelf can now display ARM unwind tables (.ARM.exidx / .ARM.extab) using |
| 276 | the -u / --unwind option. |
| 277 | |
| 278 | * Add --dyn-syms to readelf to dump dynamic symbol table. |
| 279 | |
| 280 | * A new tool - elfedit - has been added to directly manipulate ELF format |
| 281 | binaries. |
| 282 | |
| 283 | * Add to dlltool .def file feature of aliasing PE internal symbol name by |
| 284 | '== <ID>' option. |
| 285 | |
| 286 | * Add a new command-line option -a / --addresses to addr2line to display the |
| 287 | address before function name or source filename. |
| 288 | |
| 289 | * Add a new command-line option -p / --pretty-print to addr2line to have |
| 290 | a more human readable output. |
| 291 | |
| 292 | * The hppa/som targets can now be compiled on any host. |
| 293 | |
| 294 | Changes in 2.20: |
| 295 | |
| 296 | * Add support for delay importing to dlltool. Use the --output-delaylib <file> |
| 297 | switch to create a delay-import library. The resulting app will load the dll |
| 298 | as soon as the first function is called. It will link to __delayLoadHelper2() |
| 299 | from the static delayimp library, which will import LoadLibraryA and |
| 300 | GetProcAddress from kernel32. |
| 301 | |
| 302 | * Add a new command-line option, --insn-width=WIDTH, to objdump to specify |
| 303 | number of bytes to be displayed on a single line when disassembling |
| 304 | instructions. |
| 305 | |
| 306 | * Readelf can now display the relocated contents of a section as a sequence |
| 307 | of bytes via the --relocated-dump=<name|number> command-line option. |
| 308 | |
| 309 | * The gprof program has been given a new command-line option: |
| 310 | --external-symbols-table=<filename> which reads in symbols from a specified |
| 311 | file. |
| 312 | |
| 313 | * The plugin target has been added to bfd. It can load the same shared objects |
| 314 | used by gold and uses them to provide basic support for new file formats. |
| 315 | |
| 316 | * The verilog memory hex dump file format is now supported as an output format |
| 317 | for objcopy. |
| 318 | |
| 319 | * Add --file-alignment, --heap, --image-base, --section-alignment, |
| 320 | --stack and --subsystem command-line options to objcopy, which will |
| 321 | set PE optional header. |
| 322 | |
| 323 | * Option --dwarf/-W of objdump is now as flexible as readelf --debug-dump/-w. |
| 324 | |
| 325 | * --as-needed now links in a dynamic library if it satisfies undefined |
| 326 | symbols in regular objects, or in other dynamic libraries. In the |
| 327 | latter case the library is not linked if it is found in a DT_NEEDED |
| 328 | entry of one of the libraries already linked. |
| 329 | |
| 330 | * Added --prefix=PREFIX and --prefix-strip=LEVEL switches to objdump to |
| 331 | add absolute paths for -S. |
| 332 | |
| 333 | * Add new option --use-nul-prefixed-import-tables to dlltool to allow fall- |
| 334 | back to old import table generation with null element prefix. |
| 335 | |
| 336 | * Added --identify-strict switch to cause --identify <implib> to |
| 337 | report an error when the import library is associated with |
| 338 | multiple DLLs. |
| 339 | |
| 340 | * Added --identify <implib> option to dlltool, which determines the |
| 341 | name of the DLL associated with the specified <implib>. |
| 342 | |
| 343 | * Support for PowerPC booke64 instructions has been removed. The assembler no |
| 344 | longer accepts -mbooke32 or -mbooke64 and the disassembler no longer accepts |
| 345 | -Mbooke32 or -Mbooke64. Instead, -mbooke and -Mbooke should be used. |
| 346 | |
| 347 | Changes in 2.19: |
| 348 | |
| 349 | * Added -wL switch to dump decoded contents of .debug_line. |
| 350 | |
| 351 | * Added support for "thin" archives which contain pathnames pointing to |
| 352 | object files rather than the files themselves and which contain a |
| 353 | flattened symbol index for all objects, and archives, which have been |
| 354 | added to the archive. |
| 355 | |
| 356 | * Added -F switch to objdump to include file offsets in the disassembly. |
| 357 | |
| 358 | * Added -c switch to readelf to allow string dumps of archive symbol index. |
| 359 | |
| 360 | * Support for SSE5 has been added to the i386 port. |
| 361 | |
| 362 | * Added -p switch to readelf to allow string dumps of sections. |
| 363 | |
| 364 | Changes in 2.18: |
| 365 | |
| 366 | * Resolved 37 coding problems in bfd including static array overruns, null |
| 367 | pointer dereferences and use of a malloc buffer after it has been freed, as |
| 368 | revealed by static analysis donated by Coverity, Inc. (http://scan.coverity.com). |
| 369 | |
| 370 | * The binutils sources are now released under version 3 of the GNU General |
| 371 | Public License. |
| 372 | |
| 373 | * A new tool "windmc" has been added for some targets. This is a message |
| 374 | compiler which attempts to be compatible with the MS version. |
| 375 | |
| 376 | * Add codepage support to the windres tool. It now supports many new |
| 377 | resource types (e.g. MANIFEST, TOOLBAR, etc). The output generation |
| 378 | for binary files is done now via bfd itself. The endianess problems |
| 379 | for different hosts are solved. Dumps of .res files can now be |
| 380 | re-compiled by windres without lossing resources or compilation errors. |
| 381 | Some problems on dialog resource translations are corrected. |
| 382 | |
| 383 | * Add --extract-symbol command-line option to objcopy, which will |
| 384 | strip everything out of an ordinary object file or executable except |
| 385 | for its symbol table. Files containing just symbols can be useful |
| 386 | to some OSes. |
| 387 | |
| 388 | Changes in 2.17: |
| 389 | |
| 390 | * Add "-x NAME" to readelf in addition to "-x NUMBER". |
| 391 | |
| 392 | * Add -i and -t switches to cxxfilt. -i disables the display of implementation |
| 393 | specific extra demangling information (if any) and -t disables the demangling |
| 394 | of types. |
| 395 | |
| 396 | * Add support for the "@<file>" syntax to the command lines of all tools, so |
| 397 | that extra switches can be read from <file>. |
| 398 | |
| 399 | * Add "-W/--dwarf" to objdump to display the contents of the DWARF |
| 400 | debug sections. |
| 401 | |
| 402 | * Add "-t/--section-details" to readelf to display section details. |
| 403 | "-N/--full-section-name" is deprecated. |
| 404 | |
| 405 | * powerpc-linux ld now supports a variant form of PLT and GOT for the security |
| 406 | conscious. This form will automatically be chosen when ld detects that all |
| 407 | code in regular object files was generated by gcc -msecure-plt. The old PLT |
| 408 | and GOT may be forced by a new ld option, --bss-plt. |
| 409 | |
| 410 | * Add "-i/--inlines" to addr2line to print enclosing scope information |
| 411 | for inlined function chains, back to first non-inlined function. |
| 412 | |
| 413 | * Add "-N/--full-section-name" to readelf to display full section name. |
| 414 | |
| 415 | * Add "-M entry:<addr>" switch to objdump to specify a function entry address |
| 416 | when disassembling VAX binaries. |
| 417 | |
| 418 | * Add "--globalize-symbol <name>" and "--globalize-symbols <filename>" switches |
| 419 | to objcopy to convert local symbols into global symbols. |
| 420 | |
| 421 | * gprof now allows input files to have histogram records for |
| 422 | several memory ranges, provided those ranges are disjoint. |
| 423 | |
| 424 | Changes in 2.16: |
| 425 | |
| 426 | * Add "-g/--section-groups" to readelf to display section groups. |
| 427 | |
| 428 | * objcopy recognizes two new options --strip-unneeded-symbol and |
| 429 | --strip-unneeded-symbols, namely for use together with the wildcard |
| 430 | matching the original --strip-symbol/--strip-symbols provided, but |
| 431 | retaining any symbols matching but needed by relocations. |
| 432 | |
| 433 | * readelf can now display address ranges from .debug_range sections. This |
| 434 | happens automatically when a DW_AT_range attribute is encountered. The |
| 435 | command-line switch --debug-dump=Ranges (or -wR) can also be used to display |
| 436 | the contents of the .debug_range section. |
| 437 | |
| 438 | * nm and objdump now have a switch "--special-syms" to enable the displaying of |
| 439 | symbols which the target considers to be special. By default these symbols |
| 440 | are no longer displayed. Currently the only special symbols are the Mapping |
| 441 | symbols used by the ARM port to mark transitions between text and data and |
| 442 | between ARM and THUMB code. |
| 443 | |
| 444 | * dlltool has a switch "--ext-prefix-alias <prefix>" to generate additional |
| 445 | import and export symbols with <preifx> prepended to them. |
| 446 | |
| 447 | Changes in 2.15: |
| 448 | |
| 449 | * objcopy for MIPS targets now accepts "-M no-aliases" as an option to the |
| 450 | disassembler to print the "raw" mips instruction mnemonic instead of some |
| 451 | pseudo instruction name. I.E. print "daddu" or "or" instead of "move", |
| 452 | "sll" instead of "nop", etc. |
| 453 | |
| 454 | * objcopy and strip can now take wildcard patterns in symbol names specified on |
| 455 | the command line provided that the --wildcard switch is used to enable them. |
| 456 | |
| 457 | * readelf can now parse archives. |
| 458 | |
| 459 | * objdump now accepts --debugging-tags to print the debug information in a |
| 460 | format compatible with ctags tool. |
| 461 | |
| 462 | * objcopy and strip now accept --only-keep-debug to create a file containing |
| 463 | those sections that would be stripped out by --strip-debug. The idea is that |
| 464 | this can be used in conjunction with the --add-gnu-debuglink switch to create |
| 465 | a two part program distribution - one a stripped executable and the other the |
| 466 | debugging info. |
| 467 | |
| 468 | * objcopy now accepts --add-gnu-debuglink=<file> to insert a .gnu_debuglink |
| 469 | section into a (presumably stripped) executable. This allows the debug |
| 470 | information for the file to be held in a separate file. |
| 471 | |
| 472 | * BFD marks the sections .comment and .note as 'n' in the BSD/POSIX |
| 473 | single-character representation. This can be checked by running nm |
| 474 | with the -a switch. |
| 475 | |
| 476 | Changes in 2.14: |
| 477 | |
| 478 | * Added --info switch to objcopy and strip. |
| 479 | |
| 480 | * Support for Vitesse IQ2000 added by Red Hat. |
| 481 | |
| 482 | * Added 'S' encoding to strings to allow the display of 8-bit characters. |
| 483 | |
| 484 | * Added --prefix-symbols=<text>, --prefix-sections=<text> and |
| 485 | --prefix-alloc-sections=<text> to objcopy. |
| 486 | |
| 487 | * readelf can handle the extensions to the DWARF2 spec used by the Unified |
| 488 | Parallel C compiler. |
| 489 | |
| 490 | * BFD no longer declares a "boolean" type, to avoid clashes with other |
| 491 | headers that declare the same. Users of BFD should replace boolean, |
| 492 | false and true, with int, 0 and 1, or define their own boolean type. |
| 493 | |
| 494 | * Support for IP2K added by Denis Chertykov. |
| 495 | |
| 496 | Changes in 2.13: |
| 497 | |
| 498 | * Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400 |
| 499 | and FR500 included. |
| 500 | |
| 501 | Changes in version 2.12: |
| 502 | |
| 503 | * Support for Don Knuth's MMIX, by Hans-Peter Nilsson. |
| 504 | |
| 505 | * size: Add --totals to display summary of sizes (Berkeley format only). |
| 506 | |
| 507 | * readelf: Add --wide option to not break section header or segment listing |
| 508 | lines to fit into 80 columns. |
| 509 | |
| 510 | * strings: Add --encoding to display wide character strings. By Markus Kuhn. |
| 511 | |
| 512 | * objcopy: Add --rename-section to change section names. |
| 513 | |
| 514 | * readelf: Support added for DWARF 2.1 extensions. Support added for |
| 515 | displaying the contents of .debug.macinfo sections. |
| 516 | |
| 517 | * New command-line switches added to objcopy to allow symbols to be kept as |
| 518 | global symbols, and also to specify files containing lists of such symbols. |
| 519 | by Honda Hiroki. |
| 520 | |
| 521 | * Support for OpenRISC by Johan Rydberg. |
| 522 | |
| 523 | * New command-line switch to objcopy --alt-machine-code which creates a binary |
| 524 | with an alternate machine code if one is defined in the architecture |
| 525 | description. Only supported for ELF targets. By Alexandre Oliva. |
| 526 | |
| 527 | * New command-line switch to objcopy -B (or --binary-architecture) which sets |
| 528 | the architecture of the output file to the given argument. This option only |
| 529 | makes sense, if the input target is binary. Otherwise it is ignored. |
| 530 | By Stefan Geuken. |
| 531 | |
| 532 | * Support for PDP-11 by Lars Brinkhoff. |
| 533 | |
| 534 | Changes in binutils 2.11: |
| 535 | |
| 536 | * Add support for ARM v5t and v5te architectures and Intel's XScale ARM |
| 537 | extenstions. |
| 538 | |
| 539 | * Add --srec-len and --srec-forceS3 command-line switch to objcopy. |
| 540 | By Luciano Gemme. |
| 541 | |
| 542 | * Support for the MIPS32, by Anders Norlander. |
| 543 | |
| 544 | * Support for the i860, by Jason Eckhardt. |
| 545 | |
| 546 | * Support for CRIS (Axis Communications ETRAX series). |
| 547 | |
| 548 | Changes in binutils 2.10: |
| 549 | |
| 550 | * Support for 64-bit ELF on HPPA. |
| 551 | |
| 552 | * New command-line switch to objdump --file-start-context which shows the |
| 553 | entire file contents up to the source line first encountered for a given |
| 554 | file. |
| 555 | |
| 556 | * New command-line switch to objdump -M (or --disassembler-options) which takes |
| 557 | a parameter which can then be interpreted on a per-target basis by the |
| 558 | disassembler. Used by ARM targets to select register name sets, ISA, APCS or |
| 559 | raw verions. |
| 560 | |
| 561 | * objdump support for -mi386:intel which causes disassembly to be displayed |
| 562 | with intel syntax. |
| 563 | |
| 564 | * New program: readelf. This displays the contents of ELF format files, |
| 565 | regardless of target machine. |
| 566 | |
| 567 | * objcopy now takes --change-section-lma, --change-section-vma, and |
| 568 | --change-section-address options. The old --adjust-section-vma option is |
| 569 | equivalent to --change-section-address. The other --adjust-* options are now |
| 570 | renamed to --change-*, although --adjust-* continues to work. |
| 571 | |
| 572 | * objcopy has a --redefine-sym option that lets you rename symbols. |
| 573 | |
| 574 | * objcopy now takes a -j/--only-section option to copy only the specified |
| 575 | sections. |
| 576 | |
| 577 | * dlltool now supports the IMPORTS command. |
| 578 | |
| 579 | * dlltool now takes --export-all-symbols, --no-export-all-symbols, |
| 580 | --exclude-symbols, and --no-default-excludes options. |
| 581 | |
| 582 | Changes in binutils 2.9: |
| 583 | |
| 584 | * Added windres program, which can be used to manipulate resources in WIN32 |
| 585 | files as used on Windows 95 and Windows NT. |
| 586 | |
| 587 | * The objcopy --gap-fill and --pad-to options operate on the LMA rather than |
| 588 | the VMA of the sections. |
| 589 | |
| 590 | * Added S modifier to ar to not build a symbol table. |
| 591 | |
| 592 | Changes in binutils 2.8: |
| 593 | |
| 594 | * The objdump disassembly format has been changed, and hopefully improved. Use |
| 595 | the new --prefix-addresses option to get the old format. There are also new |
| 596 | --disassemble-zeroes and --no-show-raw-insn options which affect disassembler |
| 597 | output. |
| 598 | |
| 599 | * Formats may now be specified as configuration triplets. For example, |
| 600 | objdump -b i386-pc-linux. The triplets are not passed through config.sub, |
| 601 | so they must be in canonical form. |
| 602 | |
| 603 | * Added new addr2line program. This uses the debugging information to convert |
| 604 | an address into a file name and line number within a program. |
| 605 | |
| 606 | * Added --change-leading-char argument to objcopy. |
| 607 | |
| 608 | * Added --weaken argument to objcopy. |
| 609 | |
| 610 | * objdump --dynamic-reloc now works on ELF executables and shared libraries. |
| 611 | |
| 612 | * Added --adjust-vma option to objdump. |
| 613 | |
| 614 | * Added -C/--demangle option to objdump. |
| 615 | |
| 616 | * Added -p/--preserve-dates option to strip and objcopy. |
| 617 | |
| 618 | Changes in binutils 2.7: |
| 619 | |
| 620 | * Added --enable-shared and --enable-commonbfdlib options to configure. |
| 621 | |
| 622 | * Added --debugging argument to objdump and objcopy. |
| 623 | |
| 624 | * Added --defined-only argument to nm. |
| 625 | |
| 626 | * Added --remove-leading-char argument to objcopy. |
| 627 | |
| 628 | * The objdump --line-numbers option is now meaningful with --reloc. |
| 629 | |
| 630 | * Added --line-numbers option to nm. |
| 631 | |
| 632 | * Added --endian/-EB/-EL option to objdump. |
| 633 | |
| 634 | * Added support for Alpha OpenVMS/AXP. |
| 635 | |
| 636 | Changes in binutils 2.6: |
| 637 | |
| 638 | * Added -N/--strip-symbol and -K/--keep-symbol arguments to strip and objcopy. |
| 639 | |
| 640 | * Added several arguments to objcopy to provide some control over how the new |
| 641 | file is laid out in memory. Also added binary output format to BFD to permit |
| 642 | generating plain binary files. |
| 643 | |
| 644 | * Added --start-address and --stop-address options to objdump. |
| 645 | |
| 646 | * ar and ranlib now work on AIX. The tools are now built by default on AIX. |
| 647 | |
| 648 | Changes in binutils 2.5: |
| 649 | |
| 650 | * Changed objdump -dr to dump the relocs interspersed with the assembly |
| 651 | listing, for a more useful listing of relocatable files. |
| 652 | |
| 653 | * Changed objdump -d/--disassemble to only disassemble SEC_CODE sections. |
| 654 | Added -D/--disassemble-all option to disassemble all sections. |
| 655 | |
| 656 | * Added --size-sort option to nm. |
| 657 | |
| 658 | * strip and objcopy should now be able to handle dynamically linked ELF |
| 659 | executables. |
| 660 | |
| 661 | Changes in binutils 2.4: |
| 662 | |
| 663 | * Support for HP-PA (by Jeff Law), i386 Mach (by David Mackenzie), RS/6000 and |
| 664 | PowerPC (except ar and ranlib; by Ian Taylor). |
| 665 | |
| 666 | * Support for Irix 5. |
| 667 | |
| 668 | * Programs `strip' and `objcopy' will not attempt to write dynamically linked |
| 669 | ELF output files, since BFD currently can't create them properly. |
| 670 | |
| 671 | Changes in binutils 2.3: |
| 672 | |
| 673 | * A new --stabs argument has been added to objdump to dump stabs sections in |
| 674 | ELF and COFF files. |
| 675 | |
| 676 | * A new program, nlmconv, has been added. It can convert object files into |
| 677 | Novell NetWare Loadable Modules. |
| 678 | |
| 679 | * The strings program has been added. |
| 680 | |
| 681 | Changes in binutils 2.2: |
| 682 | |
| 683 | * The 'copy' program has been renamed to 'objcopy', for consistency with |
| 684 | 'objdump', and because 'copy' might more plausibly be used as a synonym for |
| 685 | 'cp'. |
| 686 | |
| 687 | * The new stand-alone program c++filt is a filter that converts encoded |
| 688 | (mangled) C++ assembly-level identifiers to user-level names. (Note: This |
| 689 | may get moved to the gcc distribution.) |
| 690 | |
| 691 | * nm -o on an archive now prefixes each line with the archive name, matching |
| 692 | the output from BSD nm. |
| 693 | |
| 694 | * ar (and ld) can now read (but not write) BSD4.4-style archives. |
| 695 | |
| 696 | * New support for H8500, Z8000, and the Hitach SH. |
| 697 | |
| 698 | * Dis-assembler interface changed to allow sharing with gdb. |
| 699 | |
| 700 | * There is new Elf code, but it is not yet ready for general use. |
| 701 | |
| 702 | * There is the beginnings of a test suite. |
| 703 | |
| 704 | Changes in binutils 2.1: |
| 705 | |
| 706 | * There is now support for writing ECOFF files, so ld and the other utilities |
| 707 | should work on Risc/Ultrix and Irix. Please let us know how well this works. |
| 708 | |
| 709 | * ar now automatically creates a symbol table (a __.SYMDEF member, in the BSD |
| 710 | version), if there are any object files in the archive. So running ranlib is |
| 711 | now redundant (unless the non-standard q command is used). This is required |
| 712 | for Posix.2 conformance. |
| 713 | |
| 714 | * The archive-reading code now reads both BSD-style and SYSV-style archives |
| 715 | independently of the selected target format. This is to encourage people to |
| 716 | switch to SYSV-format, which has a number of advantages. |
| 717 | |
| 718 | * The strip and copy programs now have options to remove debug-symbols only |
| 719 | and/or local symbols only. They now also support long options. |
| 720 | |
| 721 | \f |
| 722 | Copyright (C) 2012-2020 Free Software Foundation, Inc. |
| 723 | |
| 724 | Copying and distribution of this file, with or without modification, |
| 725 | are permitted in any medium without royalty provided the copyright |
| 726 | notice and this notice are preserved. |
| 727 | |
| 728 | Local variables: |
| 729 | fill-column: 79 |
| 730 | End: |