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Commit | Line | Data |
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252b5132 | 1 | -*- text -*- |
0bd09323 | 2 | |
9012d781 MR |
3 | * The MIPS port now supports the Sony Interactive Entertainment Allegrex |
4 | processor, used with the PlayStation Portable, which implements the MIPS | |
5 | II ISA along with a single-precision FPU and a few implementation-specific | |
6 | integer instructions. | |
7 | ||
45b8517a NC |
8 | * Objdump's --private option can now be used on PE format files to display the |
9 | fields in the file header and section headers. | |
fa3d73eb IB |
10 | |
11 | * New versioned release of libsframe: libsframe.so.1. This release introduces | |
12 | versioned symbols with version node name LIBSFRAME_1.0. This release also | |
13 | updates the ABI in an incompatible way: this includes removal of | |
14 | sframe_get_funcdesc_with_addr API, change in the behavior of | |
15 | sframe_fre_get_ra_offset and sframe_fre_get_fp_offset APIs. | |
45b8517a | 16 | |
a72b0718 NC |
17 | Changes in 2.40: |
18 | ||
c7ce51d8 NC |
19 | * Objdump has a new command line option --show-all-symbols which will make it |
20 | display all symbols that match a given address when disassembling. (Normally | |
21 | only the first symbol that matches an address is shown). | |
22 | ||
18bf5643 NC |
23 | * Add --enable-colored-disassembly configure time option to enable colored |
24 | disassembly output by default, if the output device is a terminal. Note, | |
25 | this configure option is disabled by default. | |
26 | ||
816be8d8 NC |
27 | * DCO signed contributions are now accepted. |
28 | ||
2cac01e3 FS |
29 | * objcopy --decompress-debug-sections now supports zstd compressed debug |
30 | sections. The new option --compress-debug-sections=zstd compresses debug | |
31 | sections with zstd. | |
32 | ||
33 | * addr2line and objdump --dwarf now support zstd compressed debug sections. | |
34 | ||
25ee24d9 NC |
35 | * The dlltool program now accepts --deterministic-libraries and |
36 | --non-deterministic-libraries as command line options to control whether or | |
37 | not it generates deterministic output libraries. If neither of these options | |
38 | are used the default is whatever was set when the binutils were configured. | |
39 | ||
9968a11f IB |
40 | * readelf and objdump now have a newly added option --sframe which dumps the |
41 | SFrame section. | |
42 | ||
0bd09323 NC |
43 | Changes in 2.39: |
44 | ||
2c3cc81e | 45 | * Add --no-weak/-W option to nm to make it ignore weak symbols. |
60391a25 | 46 | |
bed566bb NC |
47 | * Add an option to objdump and readelf to prevent attempts to access debuginfod |
48 | servers when following links. | |
2c3cc81e | 49 | |
260ecdce FS |
50 | * objcopy --weaken, --weaken-symbol, and --weaken-symbols now make ELF |
51 | STB_GNU_UNIQUE symbols weak. | |
bed566bb | 52 | |
60a3da00 AB |
53 | * objdump now supports syntax highlighting of disassembler output for some |
54 | architectures. Use the --disassembler-color=MODE command line flag, with | |
55 | mode being either off, color, or extended-color. | |
56 | ||
a74e1cb3 NC |
57 | Changes in 2.38: |
58 | ||
c9dcc18f L |
59 | * elfedit: Add --output-abiversion option to update ABIVERSION. |
60 | ||
e9a0721f | 61 | * Add support for the LoongArch instruction set. |
62 | ||
b3aa80b4 NC |
63 | * Tools which display symbols or strings (readelf, strings, nm, objdump) |
64 | have a new command line option which controls how unicode characters are | |
65 | handled. By default they are treated as normal for the tool. Using | |
66 | --unicode=locale will display them according to the current locale. | |
67 | Using --unicode=hex will display them as hex byte values, whilst | |
68 | --unicode=escape will display them as escape sequences. In addition | |
69 | using --unicode=highlight will display them as unicode escape sequences | |
70 | highlighted in red (if supported by the output device). | |
71 | ||
a7fd1186 FS |
72 | * readelf -r dumps RELR relative relocations now. |
73 | ||
b69c9d41 TC |
74 | * Support for efi-app-aarch64, efi-rtdrv-aarch64 and efi-bsdrv-aarch64 has been |
75 | added to objcopy in order to enable UEFI development using binutils. | |
76 | ||
d1b69c50 FS |
77 | * ar: Add --thin for creating thin archives. -T is a deprecated alias without |
78 | diagnostics. In many ar implementations -T has a different meaning, as | |
79 | specified by X/Open System Interface. | |
80 | ||
51419248 NC |
81 | Changes in 2.37: |
82 | ||
047c3dbf NL |
83 | * The readelf tool has a new command line option which can be used to specify |
84 | how the numeric values of symbols are reported. --sym-base=0|8|10|16 tells | |
85 | readelf to display the values in base 8, base 10 or base 16. A sym base of 0 | |
86 | represents the default action of displaying values under 10000 in base 10 and | |
87 | values above that in base 16. | |
88 | ||
4db29512 AM |
89 | * Binutils now requires a C99 compiler and library to build. |
90 | ||
1996d0f1 NC |
91 | * A new format has been added to the nm program. Specifying |
92 | --format=just-symbols (or just using -j) will tell the program to only | |
93 | display symbol names and nothing else. | |
94 | ||
ca0e11aa NC |
95 | * A new command line --keep-section-symbols has been added to objcopy and |
96 | strip. This stops the removal of unused section symbols when the file is | |
97 | copied. Removing these symbols saves space, but sometimes they are needed by | |
98 | other tools. | |
99 | ||
fd5c076a AM |
100 | * objcopy --weaken, --weaken-symbol and --weaken-symbols now make undefined |
101 | symbols weak on targets that support weak symbols. | |
102 | ||
e38332c2 NC |
103 | * Readelf and objdump can now display and use the contents of .debug_sup |
104 | sections. | |
105 | ||
c46b7066 NC |
106 | * Readelf and objdump will now follow links to separate debug info files by |
107 | default. This behaviour can be stopped via the use of the new -wN or | |
108 | --debug-dump=no-follow-links options for readelf and the -WN or | |
109 | --dwarf=no-follow-links options for objdump. Also the old behaviour can be | |
110 | restored by the use of the --enable-follow-debug-links=no configure time | |
111 | option. | |
112 | ||
ca0e11aa NC |
113 | The semantics of the =follow-links option have also been slightly changed. |
114 | When enabled, the option allows for the loading of symbol tables and string | |
115 | tables from the separate files which can be used to enhance the information | |
116 | displayed when dumping other sections, but it does not automatically imply | |
117 | that information from the separate files should be displayed. | |
118 | ||
119 | If other debug section display options are also enabled (eg | |
120 | --debug-dump=info) then the contents of matching sections in both the main | |
121 | file and the separate debuginfo file *will* be displayed. This is because in | |
122 | most cases the debug section will only be present in one of the files. | |
123 | ||
124 | If however non-debug section display options are enabled (eg --sections) then | |
125 | the contents of matching parts of the separate debuginfo file will *not* be | |
126 | displayed. This is because in most cases the user probably only wanted to | |
127 | load the symbol information from the separate debuginfo file. In order to | |
128 | change this behaviour a new command line option --process-links can be used. | |
129 | This will allow di0pslay options to applied to both the main file and any | |
130 | separate debuginfo files. | |
131 | ||
7fe1b138 FS |
132 | * Nm has a new command line option: --quiet. This suppresses "no symbols" |
133 | diagnostic. | |
134 | ||
055bc77a NC |
135 | Changes in 2.36: |
136 | ||
279d901e L |
137 | * Update elfedit and readelf with LAM_U48 and LAM_U57 support. |
138 | ||
e6f6aa8d NC |
139 | * Nm has a new command line option: --ifunc-chars=CHARS. This specifies a |
140 | string of one or two characters. The first character is used as the type | |
141 | character when displaying global ifunc symbols. The second character, if | |
142 | present is used when displaying local ifunc symbols. | |
143 | ||
144 | In addition a new configure time option --enable-f-for-ifunc-symbols has been | |
145 | created, which if used will change nm's default characters for ifunc symbols | |
146 | from i (both local and global) to F (global) and f (local). | |
147 | ||
f3016d6c HC |
148 | * The ar tool's previously unused l modifier is now used for specifying |
149 | dependencies of a static library. The arguments of this option | |
150 | (or --record-libdeps long form option) will be stored verbatim in the | |
151 | __.LIBDEP member of the archive, which the linker may read at link time. | |
152 | ||
0f03783c NC |
153 | * Readelf can now display the contents of LTO symbol table sections when asked |
154 | to do so via the --lto-syms command line option. | |
155 | ||
79bc120c NC |
156 | * Readelf now accepts the -C command line option to enable the demangling of |
157 | symbol names. In addition the --demangle=<style>, --no-demangle, | |
158 | --recurse-limit and --no-recurse-limit options are also now availale. | |
159 | ||
99fabbc9 JL |
160 | * Add support for the SHF_GNU_RETAIN ELF section flag. |
161 | This flag specifies that the section should not be garbage collected by the | |
162 | linker. | |
163 | ||
b115b9fd NC |
164 | Changes in 2.35: |
165 | ||
0942c7ab NC |
166 | * Changed readelf's display of symbol names when wide mode is not enabled. |
167 | If the name is too long it will be truncated and the last five characters | |
168 | replaced with "[...]". The old behaviour of displaying 5 more characters but | |
169 | not indicating that truncation has happened can be restored by the use of the | |
170 | -T or --silent-truncation options. | |
171 | ||
bbd19b19 L |
172 | * X86 NaCl target support is removed. |
173 | ||
1b513401 NC |
174 | * The readelf tool now has a -L or --lint or --enable-checks option which turns |
175 | on warning messages about possible problems with the file(s) being examined. | |
176 | These checks include things like zero-sized sections, which are allowed by | |
177 | the ELF standard but which nevertheless might be of concern if the user | |
178 | was expecting them to actually contain something. | |
179 | ||
ae774686 NC |
180 | Changes in 2.34: |
181 | ||
301a9420 AM |
182 | * Binutils now supports debuginfod, an HTTP server for distributing |
183 | ELF/DWARF debugging information as well as source code. When built with | |
184 | debuginfod, readelf and objdump can automatically query debuginfod | |
185 | servers for separate debug files when they otherwise cannot be found. | |
186 | To build binutils with debuginfod, pass --with-debuginfod to configure. | |
187 | This requires libdebuginfod, the debuginfod client library. debuginfod | |
188 | is distributed with elfutils, starting with version 0.178. For more | |
189 | information see https://sourceware.org/elfutils. | |
190 | ||
197245e3 FS |
191 | * Add --output option to the "ar" program. This option can be used to specify |
192 | the output directory when extracting members from an archive. | |
193 | ||
64f52b3e FS |
194 | * Add --keep-section option to objcopy and strip. This option keeps the |
195 | specified section from being removed. | |
196 | ||
1d67fe3b TT |
197 | * Add visualization of jumps inside a function by drawing an ascii character |
198 | graph between the address and the disassembler column. Enabled via the | |
199 | --visualize-jumps command line option for objdump. Currently supported by | |
200 | the x86, x86_64, and ARM targets. The output looks something like this: | |
201 | ||
202 | c6: | | \----------> be 00 00 00 00 mov $0x0,%esi | |
203 | cb: | | /----> 48 8b 3d 00 00 00 00 mov 0x0(%rip),%rdi # d2 <main+0xd2> | |
204 | d2: | | | 31 c0 xor %eax,%eax | |
205 | d4: | | | /-- e8 00 00 00 00 callq d9 <main+0xd9> | |
206 | d9: | | | \-> bf 02 00 00 00 mov $0x2,%edi | |
207 | de: | +-----------|----- e8 00 00 00 00 callq e3 <main+0xe3> | |
208 | e3: | \-----------|----> 48 89 da mov %rbx,%rdx | |
209 | e6: | | be 00 00 00 00 mov $0x0,%esi | |
210 | eb: | \----- eb de jmp cb <main+0xcb> | |
211 | ed: \-------------------> 48 8b 16 mov (%rsi),%rdx | |
212 | ||
213 | Additional arguments to the --visualize-jumps option add colors to the | |
214 | output. | |
215 | ||
60391a25 PB |
216 | Changes in 2.33: |
217 | ||
a1c110a3 NC |
218 | * Add --source-comment[=<txt>] option to objdump which if present, |
219 | provides a prefix to source code lines displayed in a disassembly. | |
2c610e4b | 220 | |
fa463e9f N |
221 | * Add --set-section-alignment <section-name>=<align> option to objcopy to allow |
222 | the changing of section alignments. | |
223 | ||
37d0d091 JH |
224 | * Add --verilog-data-width option to objcopy for verilog targets to control |
225 | width of data elements in verilog hex format. | |
226 | ||
514bbb0f AV |
227 | * Add support for the Armv8.1-M Mainline and M-profile Vector Extension (MVE) |
228 | instructions. | |
229 | ||
24841daa NC |
230 | * The separate debug info file options of readelf (--debug-dump=links |
231 | and --debug-dump=follow) and objdump (--dwarf=links and | |
232 | --dwarf=follow-links) will now display and/or follow multiple links if | |
233 | more than one are present in a file. (This usually happens when gcc's | |
234 | -gsplit-dwarf option is used). | |
235 | ||
39f0547e NC |
236 | In addition objdump's --dwarf=follow-links now also affects its other |
237 | display options, so that for example, when combined with --syms it will | |
238 | cause the symbol tables in any linked debug info files to also be | |
239 | displayed. In addition when combined with --disassemble the --dwarf= | |
240 | follow-links option will ensure that any symbol tables in the linked | |
241 | files are read and used when disassembling code in the main file. | |
7d9813f1 NA |
242 | |
243 | * Add support for dumping types encoded in the Compact Type Format | |
244 | to objdump and readelf. | |
245 | ||
f974f26c NC |
246 | Changes in 2.32: |
247 | ||
af03af8f NC |
248 | * The addr2line, c++filt, nm and objdump tools now have a limit on the |
249 | maximum amount of recursion that is allowed whilst demangling strings. | |
250 | The value for this limit is defined by the DEMANGLE_RECRUSE_LIMIT | |
251 | constant declared in the include/demangle.h header file. At the time | |
69799d67 | 252 | of writing this constant has the value of 2048. |
af03af8f NC |
253 | |
254 | The --no-recurse-limit option can be used to remove the limit, restoring | |
255 | the behaviour of earlier versions of these tools. This may be needed in | |
256 | order to dmangle truly complicated names, but it also leaves the tools | |
257 | vulnerable to stack exhaustion from maliciously constructed mangled names. | |
258 | ||
d3def5d7 MY |
259 | * Objdump's --disassemble option can now take a parameter, specifying the |
260 | starting symbol for disassembly. Disassembly will continue from this | |
baae986a | 261 | symbol up to the next symbol or the end of the function. |
d3def5d7 | 262 | |
9108bc33 CX |
263 | * The MIPS port now supports the Loongson 2K1000 processor which implements |
264 | the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE, Loongson-ext ASE, | |
265 | Loongson-ext2 ASE and MSA ASE instructions. Add -march=gs264e option for | |
266 | Loongson 2K1000 processor. | |
267 | ||
bd782c07 CX |
268 | * The MIPS port now supports the Loongson 3A2000/3A3000 processor which |
269 | implements the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE, | |
270 | Loongson-ext ASE and Loongson-ext2 ASE instructions. Add -march=gs464e | |
271 | option for Loongson 3A2000/3A3000 processor. | |
272 | ||
ac8cb70f CX |
273 | * The MIPS port now supports the Loongson 3A1000 processor, aka Loongson3a, |
274 | which implements the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE | |
275 | and Loongson-ext ASE instructions. Add -march=gs464 option for Loongson | |
276 | 3A1000 processor, The -march=loongson3a is an alias of -march=gs464 for | |
277 | compatibility. | |
278 | ||
46cbf38d AB |
279 | * The size tool now has a new output format '--format=GNU' or '-G'. The |
280 | results are displayed in a similar manor to the default berkeley layout, | |
281 | except read-only data is counted in the data column, not the text column. | |
282 | Additionally the total is only included once. | |
283 | ||
719d8288 NC |
284 | Changes in 2.31: |
285 | ||
fe944acf FT |
286 | * Add support for disassembling netronome Flow Processor (NFP) firmware files. |
287 | ||
7d02540a TC |
288 | * The AArch64 port now supports showing disassembly notes which are emitted |
289 | when inconsistencies are found with the instruction that may result in the | |
290 | instruction being invalid. These can be turned on with the option -M notes | |
291 | to objdump. | |
292 | ||
293 | * The AArch64 port now emits warnings when a combination of an instruction and | |
294 | a named register could be invalid. | |
295 | ||
1869e86f AB |
296 | * Added O modifier to ar to display member offsets inside an archive |
297 | ||
9176ac5b NC |
298 | Changes in 2.30: |
299 | ||
dda8d76d NC |
300 | * Add --debug-dump=links option to readelf and --dwarf=links option to objdump |
301 | which displays the contents of any .gnu_debuglink or .gnu_debugaltlink | |
302 | sections. | |
303 | ||
304 | Add a --debug-dump=follow-links option to readelf and a --dwarf=follow-links | |
305 | option to objdump which causes indirect links into separate debug info files | |
306 | to be followed when dumping other DWARF sections. | |
307 | ||
55a09eb6 TG |
308 | Changes in 2.29: |
309 | ||
909b4e3d MR |
310 | * The MIPS port now supports microMIPS eXtended Physical Addressing (XPA) |
311 | instructions for assembly and disassembly. | |
312 | ||
f5b2fd52 MR |
313 | * The MIPS port now supports the microMIPS Release 5 ISA for assembly and |
314 | disassembly. | |
315 | ||
38bf472a MR |
316 | * The MIPS port now supports the Imagination interAptiv MR2 processor, |
317 | which implements the MIPS32r3 ISA, the MIPS16e2 ASE as well as a couple | |
318 | of implementation-specific regular MIPS and MIPS16e2 ASE instructions. | |
319 | ||
64517994 JM |
320 | * The SPARC port now supports the SPARC M8 processor, which implements the |
321 | Oracle SPARC Architecture 2017. | |
322 | ||
25499ac7 MR |
323 | * The MIPS port now supports the MIPS16e2 ASE for assembly and disassembly. |
324 | ||
a91e1603 L |
325 | * Add support for ELF SHF_GNU_MBIND and PT_GNU_MBIND_XXX. |
326 | ||
efdf7a02 | 327 | * Add support for the wasm32 ELF conversion of the WebAssembly file format. |
f96bd6c2 | 328 | |
4a14e306 AK |
329 | * Add --inlines option to objdump, which extends the --line-numbers option |
330 | so that inlined functions will display their nesting information. | |
331 | ||
9ef920e9 NC |
332 | * Add --merge-notes options to objcopy to reduce the size of notes in |
333 | a binary file by merging and deleting redundant notes. | |
334 | ||
2425a30e NC |
335 | * Add support for locating separate debug info files using the build-id |
336 | method, where the separate file has a name based upon the build-id of | |
337 | the original file. | |
338 | ||
9703a4ef TG |
339 | Changes in 2.28: |
340 | ||
08dc996f AM |
341 | * This version of binutils fixes a problem with PowerPC VLE 16A and 16D |
342 | relocations which were functionally swapped, for example, | |
343 | R_PPC_VLE_HA16A performed like R_PPC_VLE_HA16D while R_PPC_VLE_HA16D | |
344 | performed like R_PPC_VLE_HA16A. This could have been fixed by | |
345 | renumbering relocations, which would keep object files created by an | |
346 | older version of gas compatible with a newer ld. However, that would | |
347 | require an ABI update, affecting other assemblers and linkers that | |
348 | create and process the relocations correctly. It is recommended that | |
349 | all VLE object files be recompiled, but ld can modify the relocations | |
a05a5b64 | 350 | if --vle-reloc-fixup is passed to ld. If the new ld command-line |
08dc996f AM |
351 | option is not used, ld will ld warn on finding relocations inconsistent |
352 | with the instructions being relocated. | |
353 | ||
a05a5b64 | 354 | * The nm program has a new command-line option (--with-version-strings) |
df2c87b5 NC |
355 | which will display a symbol's version information, if any, after the |
356 | symbol's name. | |
357 | ||
37fd5ef3 CZ |
358 | * The ARC port of objdump now accepts a -M option to specify the extra |
359 | instruction class(es) that should be disassembled. | |
360 | ||
e511c9b1 AB |
361 | * The --remove-section option for objcopy and strip now accepts section |
362 | patterns starting with an exclamation point to indicate a non-matching | |
363 | section. A non-matching section is removed from the set of sections | |
364 | matched by an earlier --remove-section pattern. | |
365 | ||
366 | * The --only-section option for objcopy now accepts section patterns | |
367 | starting with an exclamation point to indicate a non-matching section. | |
368 | A non-matching section is removed from the set of sections matched by | |
369 | an earlier --only-section pattern. | |
370 | ||
d3e5f6c8 AB |
371 | * New --remove-relocations=SECTIONPATTERN option for objcopy and strip. |
372 | This option can be used to remove sections containing relocations. | |
373 | The SECTIONPATTERN is the section to which the relocations apply, not | |
374 | the relocation section itself. | |
375 | ||
96a84ea3 TG |
376 | Changes in 2.27: |
377 | ||
e6cc316a L |
378 | * Add a configure option, --enable-64-bit-archive, to force use of a |
379 | 64-bit format when creating an archive symbol index. | |
380 | ||
b8871f35 L |
381 | * Add --elf-stt-common= option to objcopy for ELF targets to control |
382 | whether to convert common symbols to the STT_COMMON type. | |
383 | ||
7feec526 TG |
384 | Changes in 2.26: |
385 | ||
2b35fb28 RH |
386 | * Add option to objcopy to insert new symbols into a file: |
387 | --add-symbol <name>=[<section>:]<value>[,<flags>] | |
388 | ||
886a2506 NC |
389 | * Add support for the ARC EM/HS, and ARC600/700 architectures. |
390 | ||
ea556d25 L |
391 | * Extend objcopy --compress-debug-sections option to support |
392 | --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF | |
393 | targets. | |
394 | ||
acf1419f AB |
395 | * Add --update-section option to objcopy. |
396 | ||
55edd97b EA |
397 | * Add --output-separator option to strings. |
398 | ||
c50415e2 TG |
399 | Changes in 2.25: |
400 | ||
7fac9594 NC |
401 | * Add --data option to strings to only print strings in loadable, initialized |
402 | data sections. Change the default behaviour to be --all, but add a new | |
403 | configure time option of --disable-default-strings-all to restore the old | |
404 | default behaviour. | |
405 | ||
334ac421 EA |
406 | * Add --include-all-whitespace to strings. |
407 | ||
bbad633b NC |
408 | * Add --dump-section option to objcopy. |
409 | ||
35c08157 KLC |
410 | * Add support for the Andes NDS32. |
411 | ||
58ca03a2 TG |
412 | Changes in 2.24: |
413 | ||
a05a5b64 | 414 | * Objcopy now supports wildcard characters in command-line options that take |
2e62b721 NC |
415 | section names. |
416 | ||
36591ba1 SL |
417 | * Add support for Altera Nios II. |
418 | ||
af18cb59 TG |
419 | Changes in 2.23: |
420 | ||
b9c361e0 JL |
421 | * Add support for the VLE extension to the PowerPC architecture. |
422 | ||
9a30f236 KT |
423 | * Add support for x64 Windows target of the delayed-load-library. |
424 | ||
99c513f6 DD |
425 | * Add support for the Renesas RL78 architecture. |
426 | ||
a7142d94 TG |
427 | Changes in 2.22: |
428 | ||
4ccf1e31 JJ |
429 | * Add support for displaying the contents of .debug.macro sections. |
430 | ||
ec25acb3 NC |
431 | * Add --preprocessor-arg option to windres to specify additional options |
432 | passed to preprocessor. | |
44f45767 | 433 | |
fd2f0033 TT |
434 | * Add --dwarf-start and --dwarf-end to readelf and objdump. These are used by |
435 | the new Emacs mode, see dwarf-mode.el. | |
436 | ||
69f56ae1 WL |
437 | * Add support for the Tilera TILEPro and TILE-Gx architectures. |
438 | ||
439 | changes in 2.21: | |
44f45767 | 440 | |
b7dd81f7 NC |
441 | * Add --interleave-width option to objcopy to allowing copying a range of |
442 | bytes from the input to the output with the --interleave option. | |
443 | ||
40b36596 JM |
444 | * Add support for the TMS320C6000 (TI C6X) processor family. |
445 | ||
0b6ae522 DJ |
446 | * Readelf can now display ARM unwind tables (.ARM.exidx / .ARM.extab) using |
447 | the -u / --unwind option. | |
448 | ||
2c610e4b L |
449 | * Add --dyn-syms to readelf to dump dynamic symbol table. |
450 | ||
d2420a8c NC |
451 | * A new tool - elfedit - has been added to directly manipulate ELF format |
452 | binaries. | |
81c23f82 | 453 | |
bf201fdd KT |
454 | * Add to dlltool .def file feature of aliasing PE internal symbol name by |
455 | '== <ID>' option. | |
456 | ||
a05a5b64 | 457 | * Add a new command-line option -a / --addresses to addr2line to display the |
be6f6493 TG |
458 | address before function name or source filename. |
459 | ||
a05a5b64 | 460 | * Add a new command-line option -p / --pretty-print to addr2line to have |
68cdf72f TG |
461 | a more human readable output. |
462 | ||
75875724 TG |
463 | * The hppa/som targets can now be compiled on any host. |
464 | ||
81c23f82 TG |
465 | Changes in 2.20: |
466 | ||
10e636d2 DK |
467 | * Add support for delay importing to dlltool. Use the --output-delaylib <file> |
468 | switch to create a delay-import library. The resulting app will load the dll | |
469 | as soon as the first function is called. It will link to __delayLoadHelper2() | |
470 | from the static delayimp library, which will import LoadLibraryA and | |
471 | GetProcAddress from kernel32. | |
472 | ||
a05a5b64 | 473 | * Add a new command-line option, --insn-width=WIDTH, to objdump to specify |
10e636d2 DK |
474 | number of bytes to be displayed on a single line when disassembling |
475 | instructions. | |
3dcb3fcb | 476 | |
cf13d699 | 477 | * Readelf can now display the relocated contents of a section as a sequence |
a05a5b64 | 478 | of bytes via the --relocated-dump=<name|number> command-line option. |
cf13d699 | 479 | |
a05a5b64 | 480 | * The gprof program has been given a new command-line option: |
0e27a8f6 NC |
481 | --external-symbols-table=<filename> which reads in symbols from a specified |
482 | file. | |
6e33da12 | 483 | |
ce3c775b NC |
484 | * The plugin target has been added to bfd. It can load the same shared objects |
485 | used by gold and uses them to provide basic support for new file formats. | |
486 | ||
43cd3ced AG |
487 | * The verilog memory hex dump file format is now supported as an output format |
488 | for objcopy. | |
c067354b | 489 | |
92dd4511 | 490 | * Add --file-alignment, --heap, --image-base, --section-alignment, |
a05a5b64 | 491 | --stack and --subsystem command-line options to objcopy, which will |
92dd4511 L |
492 | set PE optional header. |
493 | ||
4cb93e3b TG |
494 | * Option --dwarf/-W of objdump is now as flexible as readelf --debug-dump/-w. |
495 | ||
496 | * --as-needed now links in a dynamic library if it satisfies undefined | |
497 | symbols in regular objects, or in other dynamic libraries. In the | |
498 | latter case the library is not linked if it is found in a DT_NEEDED | |
499 | entry of one of the libraries already linked. | |
500 | ||
0dafdf3f | 501 | * Added --prefix=PREFIX and --prefix-strip=LEVEL switches to objdump to |
28024d9d | 502 | add absolute paths for -S. |
0dafdf3f | 503 | |
e77b97d4 KT |
504 | * Add new option --use-nul-prefixed-import-tables to dlltool to allow fall- |
505 | back to old import table generation with null element prefix. | |
506 | ||
3aade688 | 507 | * Added --identify-strict switch to cause --identify <implib> to |
71c57c16 NC |
508 | report an error when the import library is associated with |
509 | multiple DLLs. | |
510 | ||
511 | * Added --identify <implib> option to dlltool, which determines the | |
512 | name of the DLL associated with the specified <implib>. | |
513 | ||
2f3bb96a BE |
514 | * Support for PowerPC booke64 instructions has been removed. The assembler no |
515 | longer accepts -mbooke32 or -mbooke64 and the disassembler no longer accepts | |
516 | -Mbooke32 or -Mbooke64. Instead, -mbooke and -Mbooke should be used. | |
517 | ||
6e33da12 TG |
518 | Changes in 2.19: |
519 | ||
a262ae96 NC |
520 | * Added -wL switch to dump decoded contents of .debug_line. |
521 | ||
a8da6403 NC |
522 | * Added support for "thin" archives which contain pathnames pointing to |
523 | object files rather than the files themselves and which contain a | |
524 | flattened symbol index for all objects, and archives, which have been | |
525 | added to the archive. | |
3aade688 | 526 | |
98ec6e72 NC |
527 | * Added -F switch to objdump to include file offsets in the disassembly. |
528 | ||
4145f1d5 NC |
529 | * Added -c switch to readelf to allow string dumps of archive symbol index. |
530 | ||
85f10a01 MM |
531 | * Support for SSE5 has been added to the i386 port. |
532 | ||
09c11c86 NC |
533 | * Added -p switch to readelf to allow string dumps of sections. |
534 | ||
876c34bf | 535 | Changes in 2.18: |
98ec6e72 | 536 | |
ad71ef64 NC |
537 | * Resolved 37 coding problems in bfd including static array overruns, null |
538 | pointer dereferences and use of a malloc buffer after it has been freed, as | |
539 | revealed by static analysis donated by Coverity, Inc. (http://scan.coverity.com). | |
1e4cf259 | 540 | |
32866df7 NC |
541 | * The binutils sources are now released under version 3 of the GNU General |
542 | Public License. | |
543 | ||
692ed3e7 NC |
544 | * A new tool "windmc" has been added for some targets. This is a message |
545 | compiler which attempts to be compatible with the MS version. | |
546 | ||
547 | * Add codepage support to the windres tool. It now supports many new | |
548 | resource types (e.g. MANIFEST, TOOLBAR, etc). The output generation | |
549 | for binary files is done now via bfd itself. The endianess problems | |
550 | for different hosts are solved. Dumps of .res files can now be | |
551 | re-compiled by windres without lossing resources or compilation errors. | |
552 | Some problems on dialog resource translations are corrected. | |
d856f2dd | 553 | |
a05a5b64 | 554 | * Add --extract-symbol command-line option to objcopy, which will |
d3e52d40 RS |
555 | strip everything out of an ordinary object file or executable except |
556 | for its symbol table. Files containing just symbols can be useful | |
557 | to some OSes. | |
558 | ||
32866df7 NC |
559 | Changes in 2.17: |
560 | ||
aef1f6d0 DJ |
561 | * Add "-x NAME" to readelf in addition to "-x NUMBER". |
562 | ||
cbf1f5df NC |
563 | * Add -i and -t switches to cxxfilt. -i disables the display of implementation |
564 | specific extra demangling information (if any) and -t disables the demangling | |
565 | of types. | |
566 | ||
567 | * Add support for the "@<file>" syntax to the command lines of all tools, so | |
568 | that extra switches can be read from <file>. | |
569 | ||
4de2ad99 | 570 | * Add "-W/--dwarf" to objdump to display the contents of the DWARF |
cbf1f5df | 571 | debug sections. |
4de2ad99 | 572 | |
5477e8a0 | 573 | * Add "-t/--section-details" to readelf to display section details. |
cbf1f5df | 574 | "-N/--full-section-name" is deprecated. |
5477e8a0 | 575 | |
b12fe839 AM |
576 | * powerpc-linux ld now supports a variant form of PLT and GOT for the security |
577 | conscious. This form will automatically be chosen when ld detects that all | |
578 | code in regular object files was generated by gcc -msecure-plt. The old PLT | |
579 | and GOT may be forced by a new ld option, --bss-plt. | |
580 | ||
0c552dc1 FF |
581 | * Add "-i/--inlines" to addr2line to print enclosing scope information |
582 | for inlined function chains, back to first non-inlined function. | |
583 | ||
81fc812e L |
584 | * Add "-N/--full-section-name" to readelf to display full section name. |
585 | ||
ec72cfe5 NC |
586 | * Add "-M entry:<addr>" switch to objdump to specify a function entry address |
587 | when disassembling VAX binaries. | |
588 | ||
7b4a0685 NC |
589 | * Add "--globalize-symbol <name>" and "--globalize-symbols <filename>" switches |
590 | to objcopy to convert local symbols into global symbols. | |
3aade688 | 591 | |
9fbad737 | 592 | * gprof now allows input files to have histogram records for |
3aade688 | 593 | several memory ranges, provided those ranges are disjoint. |
7b4a0685 NC |
594 | |
595 | Changes in 2.16: | |
596 | ||
b12fe839 | 597 | * Add "-g/--section-groups" to readelf to display section groups. |
81fc812e | 598 | |
bcf32829 JB |
599 | * objcopy recognizes two new options --strip-unneeded-symbol and |
600 | --strip-unneeded-symbols, namely for use together with the wildcard | |
601 | matching the original --strip-symbol/--strip-symbols provided, but | |
602 | retaining any symbols matching but needed by relocations. | |
603 | ||
18bd398b NC |
604 | * readelf can now display address ranges from .debug_range sections. This |
605 | happens automatically when a DW_AT_range attribute is encountered. The | |
a05a5b64 | 606 | command-line switch --debug-dump=Ranges (or -wR) can also be used to display |
18bd398b NC |
607 | the contents of the .debug_range section. |
608 | ||
3c9458e9 NC |
609 | * nm and objdump now have a switch "--special-syms" to enable the displaying of |
610 | symbols which the target considers to be special. By default these symbols | |
611 | are no longer displayed. Currently the only special symbols are the Mapping | |
612 | symbols used by the ARM port to mark transitions between text and data and | |
613 | between ARM and THUMB code. | |
614 | ||
607dea97 NC |
615 | * dlltool has a switch "--ext-prefix-alias <prefix>" to generate additional |
616 | import and export symbols with <preifx> prepended to them. | |
617 | ||
618 | Changes in 2.15: | |
619 | ||
e39893d7 | 620 | * objcopy for MIPS targets now accepts "-M no-aliases" as an option to the |
9d317d34 | 621 | disassembler to print the "raw" mips instruction mnemonic instead of some |
e39893d7 FF |
622 | pseudo instruction name. I.E. print "daddu" or "or" instead of "move", |
623 | "sll" instead of "nop", etc. | |
624 | ||
5fe11841 NC |
625 | * objcopy and strip can now take wildcard patterns in symbol names specified on |
626 | the command line provided that the --wildcard switch is used to enable them. | |
627 | ||
fb52b2f4 NC |
628 | * readelf can now parse archives. |
629 | ||
51cdc6e0 NC |
630 | * objdump now accepts --debugging-tags to print the debug information in a |
631 | format compatible with ctags tool. | |
632 | ||
ed1653a7 NC |
633 | * objcopy and strip now accept --only-keep-debug to create a file containing |
634 | those sections that would be stripped out by --strip-debug. The idea is that | |
635 | this can be used in conjunction with the --add-gnu-debuglink switch to create | |
636 | a two part program distribution - one a stripped executable and the other the | |
637 | debugging info. | |
638 | ||
2593f09a NC |
639 | * objcopy now accepts --add-gnu-debuglink=<file> to insert a .gnu_debuglink |
640 | section into a (presumably stripped) executable. This allows the debug | |
50c2245b | 641 | information for the file to be held in a separate file. |
3aade688 | 642 | |
a3b6428f NC |
643 | * BFD marks the sections .comment and .note as 'n' in the BSD/POSIX |
644 | single-character representation. This can be checked by running nm | |
645 | with the -a switch. | |
646 | ||
43c58ae6 CD |
647 | Changes in 2.14: |
648 | ||
7c29036b NC |
649 | * Added --info switch to objcopy and strip. |
650 | ||
3b36097d SC |
651 | * Support for Vitesse IQ2000 added by Red Hat. |
652 | ||
8745eafa NC |
653 | * Added 'S' encoding to strings to allow the display of 8-bit characters. |
654 | ||
d7fb0dd2 NC |
655 | * Added --prefix-symbols=<text>, --prefix-sections=<text> and |
656 | --prefix-alloc-sections=<text> to objcopy. | |
657 | ||
84ad6ede NC |
658 | * readelf can handle the extensions to the DWARF2 spec used by the Unified |
659 | Parallel C compiler. | |
660 | ||
7d036af2 AM |
661 | * BFD no longer declares a "boolean" type, to avoid clashes with other |
662 | headers that declare the same. Users of BFD should replace boolean, | |
663 | false and true, with int, 0 and 1, or define their own boolean type. | |
664 | ||
1e4cf259 NC |
665 | * Support for IP2K added by Denis Chertykov. |
666 | ||
2cbb2eef NC |
667 | Changes in 2.13: |
668 | ||
669 | * Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400 | |
670 | and FR500 included. | |
252b5132 | 671 | |
9a66911f NC |
672 | Changes in version 2.12: |
673 | ||
49fda6c8 HPN |
674 | * Support for Don Knuth's MMIX, by Hans-Peter Nilsson. |
675 | ||
15c82623 NC |
676 | * size: Add --totals to display summary of sizes (Berkeley format only). |
677 | ||
d974e256 JJ |
678 | * readelf: Add --wide option to not break section header or segment listing |
679 | lines to fit into 80 columns. | |
680 | ||
d132876a NC |
681 | * strings: Add --encoding to display wide character strings. By Markus Kuhn. |
682 | ||
594ef5db NC |
683 | * objcopy: Add --rename-section to change section names. |
684 | ||
e0c60db2 NC |
685 | * readelf: Support added for DWARF 2.1 extensions. Support added for |
686 | displaying the contents of .debug.macinfo sections. | |
687 | ||
a05a5b64 | 688 | * New command-line switches added to objcopy to allow symbols to be kept as |
16b2b71c NC |
689 | global symbols, and also to specify files containing lists of such symbols. |
690 | by Honda Hiroki. | |
691 | ||
87e6d782 NC |
692 | * Support for OpenRISC by Johan Rydberg. |
693 | ||
a05a5b64 | 694 | * New command-line switch to objcopy --alt-machine-code which creates a binary |
1ae8b3d2 AO |
695 | with an alternate machine code if one is defined in the architecture |
696 | description. Only supported for ELF targets. By Alexandre Oliva. | |
697 | ||
a05a5b64 | 698 | * New command-line switch to objcopy -B (or --binary-architecture) which sets |
09ad7db3 | 699 | the architecture of the output file to the given argument. This option only |
43a0748c NC |
700 | makes sense, if the input target is binary. Otherwise it is ignored. |
701 | By Stefan Geuken. | |
702 | ||
e135f41b NC |
703 | * Support for PDP-11 by Lars Brinkhoff. |
704 | ||
09ad7db3 AM |
705 | Changes in binutils 2.11: |
706 | ||
077b8428 NC |
707 | * Add support for ARM v5t and v5te architectures and Intel's XScale ARM |
708 | extenstions. | |
709 | ||
a05a5b64 | 710 | * Add --srec-len and --srec-forceS3 command-line switch to objcopy. |
077b8428 | 711 | By Luciano Gemme. |
7d036af2 | 712 | |
156c2f8b NC |
713 | * Support for the MIPS32, by Anders Norlander. |
714 | ||
22b36938 JE |
715 | * Support for the i860, by Jason Eckhardt. |
716 | ||
5bcac8a4 HPN |
717 | * Support for CRIS (Axis Communications ETRAX series). |
718 | ||
252b5132 RH |
719 | Changes in binutils 2.10: |
720 | ||
09ad7db3 AM |
721 | * Support for 64-bit ELF on HPPA. |
722 | ||
a05a5b64 | 723 | * New command-line switch to objdump --file-start-context which shows the |
f1563258 | 724 | entire file contents up to the source line first encountered for a given |
7d036af2 | 725 | file. |
f1563258 | 726 | |
a05a5b64 | 727 | * New command-line switch to objdump -M (or --disassembler-options) which takes |
dd92f639 NC |
728 | a parameter which can then be interpreted on a per-target basis by the |
729 | disassembler. Used by ARM targets to select register name sets, ISA, APCS or | |
730 | raw verions. | |
7d036af2 | 731 | |
c2c40d93 ILT |
732 | * objdump support for -mi386:intel which causes disassembly to be displayed |
733 | with intel syntax. | |
252b5132 RH |
734 | |
735 | * New program: readelf. This displays the contents of ELF format files, | |
736 | regardless of target machine. | |
737 | ||
738 | * objcopy now takes --change-section-lma, --change-section-vma, and | |
739 | --change-section-address options. The old --adjust-section-vma option is | |
740 | equivalent to --change-section-address. The other --adjust-* options are now | |
741 | renamed to --change-*, although --adjust-* continues to work. | |
742 | ||
57938635 AM |
743 | * objcopy has a --redefine-sym option that lets you rename symbols. |
744 | ||
745 | * objcopy now takes a -j/--only-section option to copy only the specified | |
746 | sections. | |
747 | ||
252b5132 RH |
748 | * dlltool now supports the IMPORTS command. |
749 | ||
750 | * dlltool now takes --export-all-symbols, --no-export-all-symbols, | |
751 | --exclude-symbols, and --no-default-excludes options. | |
752 | ||
753 | Changes in binutils 2.9: | |
754 | ||
755 | * Added windres program, which can be used to manipulate resources in WIN32 | |
756 | files as used on Windows 95 and Windows NT. | |
757 | ||
758 | * The objcopy --gap-fill and --pad-to options operate on the LMA rather than | |
759 | the VMA of the sections. | |
760 | ||
761 | * Added S modifier to ar to not build a symbol table. | |
762 | ||
763 | Changes in binutils 2.8: | |
764 | ||
765 | * The objdump disassembly format has been changed, and hopefully improved. Use | |
766 | the new --prefix-addresses option to get the old format. There are also new | |
767 | --disassemble-zeroes and --no-show-raw-insn options which affect disassembler | |
768 | output. | |
769 | ||
770 | * Formats may now be specified as configuration triplets. For example, | |
771 | objdump -b i386-pc-linux. The triplets are not passed through config.sub, | |
772 | so they must be in canonical form. | |
773 | ||
774 | * Added new addr2line program. This uses the debugging information to convert | |
775 | an address into a file name and line number within a program. | |
776 | ||
777 | * Added --change-leading-char argument to objcopy. | |
778 | ||
779 | * Added --weaken argument to objcopy. | |
780 | ||
781 | * objdump --dynamic-reloc now works on ELF executables and shared libraries. | |
782 | ||
783 | * Added --adjust-vma option to objdump. | |
784 | ||
785 | * Added -C/--demangle option to objdump. | |
786 | ||
787 | * Added -p/--preserve-dates option to strip and objcopy. | |
788 | ||
789 | Changes in binutils 2.7: | |
790 | ||
791 | * Added --enable-shared and --enable-commonbfdlib options to configure. | |
792 | ||
793 | * Added --debugging argument to objdump and objcopy. | |
794 | ||
795 | * Added --defined-only argument to nm. | |
796 | ||
797 | * Added --remove-leading-char argument to objcopy. | |
798 | ||
799 | * The objdump --line-numbers option is now meaningful with --reloc. | |
800 | ||
801 | * Added --line-numbers option to nm. | |
802 | ||
803 | * Added --endian/-EB/-EL option to objdump. | |
804 | ||
805 | * Added support for Alpha OpenVMS/AXP. | |
806 | ||
807 | Changes in binutils 2.6: | |
808 | ||
809 | * Added -N/--strip-symbol and -K/--keep-symbol arguments to strip and objcopy. | |
810 | ||
811 | * Added several arguments to objcopy to provide some control over how the new | |
812 | file is laid out in memory. Also added binary output format to BFD to permit | |
813 | generating plain binary files. | |
814 | ||
815 | * Added --start-address and --stop-address options to objdump. | |
816 | ||
817 | * ar and ranlib now work on AIX. The tools are now built by default on AIX. | |
818 | ||
819 | Changes in binutils 2.5: | |
820 | ||
821 | * Changed objdump -dr to dump the relocs interspersed with the assembly | |
1049f94e | 822 | listing, for a more useful listing of relocatable files. |
252b5132 RH |
823 | |
824 | * Changed objdump -d/--disassemble to only disassemble SEC_CODE sections. | |
825 | Added -D/--disassemble-all option to disassemble all sections. | |
826 | ||
827 | * Added --size-sort option to nm. | |
828 | ||
829 | * strip and objcopy should now be able to handle dynamically linked ELF | |
830 | executables. | |
831 | ||
832 | Changes in binutils 2.4: | |
833 | ||
834 | * Support for HP-PA (by Jeff Law), i386 Mach (by David Mackenzie), RS/6000 and | |
835 | PowerPC (except ar and ranlib; by Ian Taylor). | |
836 | ||
837 | * Support for Irix 5. | |
838 | ||
839 | * Programs `strip' and `objcopy' will not attempt to write dynamically linked | |
840 | ELF output files, since BFD currently can't create them properly. | |
841 | ||
842 | Changes in binutils 2.3: | |
843 | ||
844 | * A new --stabs argument has been added to objdump to dump stabs sections in | |
845 | ELF and COFF files. | |
846 | ||
847 | * A new program, nlmconv, has been added. It can convert object files into | |
848 | Novell NetWare Loadable Modules. | |
849 | ||
850 | * The strings program has been added. | |
851 | ||
852 | Changes in binutils 2.2: | |
853 | ||
854 | * The 'copy' program has been renamed to 'objcopy', for consistency with | |
855 | 'objdump', and because 'copy' might more plausibly be used as a synonym for | |
856 | 'cp'. | |
857 | ||
858 | * The new stand-alone program c++filt is a filter that converts encoded | |
859 | (mangled) C++ assembly-level identifiers to user-level names. (Note: This | |
860 | may get moved to the gcc distribution.) | |
861 | ||
862 | * nm -o on an archive now prefixes each line with the archive name, matching | |
863 | the output from BSD nm. | |
864 | ||
865 | * ar (and ld) can now read (but not write) BSD4.4-style archives. | |
866 | ||
867 | * New support for H8500, Z8000, and the Hitach SH. | |
868 | ||
869 | * Dis-assembler interface changed to allow sharing with gdb. | |
870 | ||
871 | * There is new Elf code, but it is not yet ready for general use. | |
872 | ||
873 | * There is the beginnings of a test suite. | |
874 | ||
875 | Changes in binutils 2.1: | |
876 | ||
877 | * There is now support for writing ECOFF files, so ld and the other utilities | |
878 | should work on Risc/Ultrix and Irix. Please let us know how well this works. | |
879 | ||
880 | * ar now automatically creates a symbol table (a __.SYMDEF member, in the BSD | |
881 | version), if there are any object files in the archive. So running ranlib is | |
882 | now redundant (unless the non-standard q command is used). This is required | |
883 | for Posix.2 conformance. | |
884 | ||
885 | * The archive-reading code now reads both BSD-style and SYSV-style archives | |
886 | independently of the selected target format. This is to encourage people to | |
887 | switch to SYSV-format, which has a number of advantages. | |
888 | ||
889 | * The strip and copy programs now have options to remove debug-symbols only | |
890 | and/or local symbols only. They now also support long options. | |
891 | ||
892 | \f | |
d87bef3a | 893 | Copyright (C) 2012-2023 Free Software Foundation, Inc. |
5bf135a7 NC |
894 | |
895 | Copying and distribution of this file, with or without modification, | |
896 | are permitted in any medium without royalty provided the copyright | |
897 | notice and this notice are preserved. | |
898 | ||
252b5132 RH |
899 | Local variables: |
900 | fill-column: 79 | |
901 | End: |