Change readelf's display of symbol names (when not in --wide mode) so that if they...
[deliverable/binutils-gdb.git] / binutils / NEWS
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252b5132 1-*- text -*-
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3* Changed readelf's display of symbol names when wide mode is not enabled.
4 If the name is too long it will be truncated and the last five characters
5 replaced with "[...]". The old behaviour of displaying 5 more characters but
6 not indicating that truncation has happened can be restored by the use of the
7 -T or --silent-truncation options.
8
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9* X86 NaCl target support is removed.
10
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11* The readelf tool now has a -L or --lint or --enable-checks option which turns
12 on warning messages about possible problems with the file(s) being examined.
13 These checks include things like zero-sized sections, which are allowed by
14 the ELF standard but which nevertheless might be of concern if the user
15 was expecting them to actually contain something.
16
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17Changes in 2.34:
18
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19* Binutils now supports debuginfod, an HTTP server for distributing
20 ELF/DWARF debugging information as well as source code. When built with
21 debuginfod, readelf and objdump can automatically query debuginfod
22 servers for separate debug files when they otherwise cannot be found.
23 To build binutils with debuginfod, pass --with-debuginfod to configure.
24 This requires libdebuginfod, the debuginfod client library. debuginfod
25 is distributed with elfutils, starting with version 0.178. For more
26 information see https://sourceware.org/elfutils.
27
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28* Add --output option to the "ar" program. This option can be used to specify
29 the output directory when extracting members from an archive.
30
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31* Add --keep-section option to objcopy and strip. This option keeps the
32 specified section from being removed.
33
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34 * Add visualization of jumps inside a function by drawing an ascii character
35 graph between the address and the disassembler column. Enabled via the
36 --visualize-jumps command line option for objdump. Currently supported by
37 the x86, x86_64, and ARM targets. The output looks something like this:
38
39 c6: | | \----------> be 00 00 00 00 mov $0x0,%esi
40 cb: | | /----> 48 8b 3d 00 00 00 00 mov 0x0(%rip),%rdi # d2 <main+0xd2>
41 d2: | | | 31 c0 xor %eax,%eax
42 d4: | | | /-- e8 00 00 00 00 callq d9 <main+0xd9>
43 d9: | | | \-> bf 02 00 00 00 mov $0x2,%edi
44 de: | +-----------|----- e8 00 00 00 00 callq e3 <main+0xe3>
45 e3: | \-----------|----> 48 89 da mov %rbx,%rdx
46 e6: | | be 00 00 00 00 mov $0x0,%esi
47 eb: | \----- eb de jmp cb <main+0xcb>
48 ed: \-------------------> 48 8b 16 mov (%rsi),%rdx
49
50 Additional arguments to the --visualize-jumps option add colors to the
51 output.
52
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53Changes in 2.33:
54
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55* Add --source-comment[=<txt>] option to objdump which if present,
56 provides a prefix to source code lines displayed in a disassembly.
2c610e4b 57
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58* Add --set-section-alignment <section-name>=<align> option to objcopy to allow
59 the changing of section alignments.
60
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61* Add --verilog-data-width option to objcopy for verilog targets to control
62 width of data elements in verilog hex format.
63
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64* Add support for the Armv8.1-M Mainline and M-profile Vector Extension (MVE)
65 instructions.
66
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67* The separate debug info file options of readelf (--debug-dump=links
68 and --debug-dump=follow) and objdump (--dwarf=links and
69 --dwarf=follow-links) will now display and/or follow multiple links if
70 more than one are present in a file. (This usually happens when gcc's
71 -gsplit-dwarf option is used).
72
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73 In addition objdump's --dwarf=follow-links now also affects its other
74 display options, so that for example, when combined with --syms it will
75 cause the symbol tables in any linked debug info files to also be
76 displayed. In addition when combined with --disassemble the --dwarf=
77 follow-links option will ensure that any symbol tables in the linked
78 files are read and used when disassembling code in the main file.
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79
80 * Add support for dumping types encoded in the Compact Type Format
81 to objdump and readelf.
82
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83Changes in 2.32:
84
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85* The addr2line, c++filt, nm and objdump tools now have a limit on the
86 maximum amount of recursion that is allowed whilst demangling strings.
87 The value for this limit is defined by the DEMANGLE_RECRUSE_LIMIT
88 constant declared in the include/demangle.h header file. At the time
69799d67 89 of writing this constant has the value of 2048.
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90
91 The --no-recurse-limit option can be used to remove the limit, restoring
92 the behaviour of earlier versions of these tools. This may be needed in
93 order to dmangle truly complicated names, but it also leaves the tools
94 vulnerable to stack exhaustion from maliciously constructed mangled names.
95
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96* Objdump's --disassemble option can now take a parameter, specifying the
97 starting symbol for disassembly. Disassembly will continue from this
baae986a 98 symbol up to the next symbol or the end of the function.
d3def5d7 99
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100* The MIPS port now supports the Loongson 2K1000 processor which implements
101 the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE, Loongson-ext ASE,
102 Loongson-ext2 ASE and MSA ASE instructions. Add -march=gs264e option for
103 Loongson 2K1000 processor.
104
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105* The MIPS port now supports the Loongson 3A2000/3A3000 processor which
106 implements the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE,
107 Loongson-ext ASE and Loongson-ext2 ASE instructions. Add -march=gs464e
108 option for Loongson 3A2000/3A3000 processor.
109
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110* The MIPS port now supports the Loongson 3A1000 processor, aka Loongson3a,
111 which implements the MIPS64r2 ISA, the Loongson-mmi ASE, Loongson-cam ASE
112 and Loongson-ext ASE instructions. Add -march=gs464 option for Loongson
113 3A1000 processor, The -march=loongson3a is an alias of -march=gs464 for
114 compatibility.
115
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116* The size tool now has a new output format '--format=GNU' or '-G'. The
117 results are displayed in a similar manor to the default berkeley layout,
118 except read-only data is counted in the data column, not the text column.
119 Additionally the total is only included once.
120
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121Changes in 2.31:
122
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123* Add support for disassembling netronome Flow Processor (NFP) firmware files.
124
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125* The AArch64 port now supports showing disassembly notes which are emitted
126 when inconsistencies are found with the instruction that may result in the
127 instruction being invalid. These can be turned on with the option -M notes
128 to objdump.
129
130* The AArch64 port now emits warnings when a combination of an instruction and
131 a named register could be invalid.
132
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133* Added O modifier to ar to display member offsets inside an archive
134
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135Changes in 2.30:
136
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137* Add --debug-dump=links option to readelf and --dwarf=links option to objdump
138 which displays the contents of any .gnu_debuglink or .gnu_debugaltlink
139 sections.
140
141 Add a --debug-dump=follow-links option to readelf and a --dwarf=follow-links
142 option to objdump which causes indirect links into separate debug info files
143 to be followed when dumping other DWARF sections.
144
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145Changes in 2.29:
146
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147* The MIPS port now supports microMIPS eXtended Physical Addressing (XPA)
148 instructions for assembly and disassembly.
149
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150* The MIPS port now supports the microMIPS Release 5 ISA for assembly and
151 disassembly.
152
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153* The MIPS port now supports the Imagination interAptiv MR2 processor,
154 which implements the MIPS32r3 ISA, the MIPS16e2 ASE as well as a couple
155 of implementation-specific regular MIPS and MIPS16e2 ASE instructions.
156
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157* The SPARC port now supports the SPARC M8 processor, which implements the
158 Oracle SPARC Architecture 2017.
159
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160* The MIPS port now supports the MIPS16e2 ASE for assembly and disassembly.
161
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162* Add support for ELF SHF_GNU_MBIND and PT_GNU_MBIND_XXX.
163
efdf7a02 164* Add support for the wasm32 ELF conversion of the WebAssembly file format.
f96bd6c2 165
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166* Add --inlines option to objdump, which extends the --line-numbers option
167 so that inlined functions will display their nesting information.
168
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169* Add --merge-notes options to objcopy to reduce the size of notes in
170 a binary file by merging and deleting redundant notes.
171
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172* Add support for locating separate debug info files using the build-id
173 method, where the separate file has a name based upon the build-id of
174 the original file.
175
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176Changes in 2.28:
177
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178* This version of binutils fixes a problem with PowerPC VLE 16A and 16D
179 relocations which were functionally swapped, for example,
180 R_PPC_VLE_HA16A performed like R_PPC_VLE_HA16D while R_PPC_VLE_HA16D
181 performed like R_PPC_VLE_HA16A. This could have been fixed by
182 renumbering relocations, which would keep object files created by an
183 older version of gas compatible with a newer ld. However, that would
184 require an ABI update, affecting other assemblers and linkers that
185 create and process the relocations correctly. It is recommended that
186 all VLE object files be recompiled, but ld can modify the relocations
a05a5b64 187 if --vle-reloc-fixup is passed to ld. If the new ld command-line
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188 option is not used, ld will ld warn on finding relocations inconsistent
189 with the instructions being relocated.
190
a05a5b64 191* The nm program has a new command-line option (--with-version-strings)
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192 which will display a symbol's version information, if any, after the
193 symbol's name.
194
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195* The ARC port of objdump now accepts a -M option to specify the extra
196 instruction class(es) that should be disassembled.
197
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198* The --remove-section option for objcopy and strip now accepts section
199 patterns starting with an exclamation point to indicate a non-matching
200 section. A non-matching section is removed from the set of sections
201 matched by an earlier --remove-section pattern.
202
203* The --only-section option for objcopy now accepts section patterns
204 starting with an exclamation point to indicate a non-matching section.
205 A non-matching section is removed from the set of sections matched by
206 an earlier --only-section pattern.
207
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208* New --remove-relocations=SECTIONPATTERN option for objcopy and strip.
209 This option can be used to remove sections containing relocations.
210 The SECTIONPATTERN is the section to which the relocations apply, not
211 the relocation section itself.
212
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213Changes in 2.27:
214
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215* Add a configure option, --enable-64-bit-archive, to force use of a
216 64-bit format when creating an archive symbol index.
217
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218* Add --elf-stt-common= option to objcopy for ELF targets to control
219 whether to convert common symbols to the STT_COMMON type.
220
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221Changes in 2.26:
222
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223* Add option to objcopy to insert new symbols into a file:
224 --add-symbol <name>=[<section>:]<value>[,<flags>]
225
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226* Add support for the ARC EM/HS, and ARC600/700 architectures.
227
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228* Extend objcopy --compress-debug-sections option to support
229 --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF
230 targets.
231
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232* Add --update-section option to objcopy.
233
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234* Add --output-separator option to strings.
235
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236Changes in 2.25:
237
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238* Add --data option to strings to only print strings in loadable, initialized
239 data sections. Change the default behaviour to be --all, but add a new
240 configure time option of --disable-default-strings-all to restore the old
241 default behaviour.
242
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243* Add --include-all-whitespace to strings.
244
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245* Add --dump-section option to objcopy.
246
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247* Add support for the Andes NDS32.
248
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249Changes in 2.24:
250
a05a5b64 251* Objcopy now supports wildcard characters in command-line options that take
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252 section names.
253
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254* Add support for Altera Nios II.
255
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256Changes in 2.23:
257
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258* Add support for the VLE extension to the PowerPC architecture.
259
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260* Add support for x64 Windows target of the delayed-load-library.
261
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262* Add support for the Renesas RL78 architecture.
263
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264Changes in 2.22:
265
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266* Add support for displaying the contents of .debug.macro sections.
267
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268* Add --preprocessor-arg option to windres to specify additional options
269 passed to preprocessor.
44f45767 270
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271* Add --dwarf-start and --dwarf-end to readelf and objdump. These are used by
272 the new Emacs mode, see dwarf-mode.el.
273
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274* Add support for the Tilera TILEPro and TILE-Gx architectures.
275
276changes in 2.21:
44f45767 277
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278* Add --interleave-width option to objcopy to allowing copying a range of
279 bytes from the input to the output with the --interleave option.
280
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281* Add support for the TMS320C6000 (TI C6X) processor family.
282
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283* Readelf can now display ARM unwind tables (.ARM.exidx / .ARM.extab) using
284 the -u / --unwind option.
285
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286* Add --dyn-syms to readelf to dump dynamic symbol table.
287
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288* A new tool - elfedit - has been added to directly manipulate ELF format
289 binaries.
81c23f82 290
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291* Add to dlltool .def file feature of aliasing PE internal symbol name by
292 '== <ID>' option.
293
a05a5b64 294* Add a new command-line option -a / --addresses to addr2line to display the
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295 address before function name or source filename.
296
a05a5b64 297* Add a new command-line option -p / --pretty-print to addr2line to have
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298 a more human readable output.
299
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300* The hppa/som targets can now be compiled on any host.
301
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302Changes in 2.20:
303
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304* Add support for delay importing to dlltool. Use the --output-delaylib <file>
305 switch to create a delay-import library. The resulting app will load the dll
306 as soon as the first function is called. It will link to __delayLoadHelper2()
307 from the static delayimp library, which will import LoadLibraryA and
308 GetProcAddress from kernel32.
309
a05a5b64 310* Add a new command-line option, --insn-width=WIDTH, to objdump to specify
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311 number of bytes to be displayed on a single line when disassembling
312 instructions.
3dcb3fcb 313
cf13d699 314* Readelf can now display the relocated contents of a section as a sequence
a05a5b64 315 of bytes via the --relocated-dump=<name|number> command-line option.
cf13d699 316
a05a5b64 317* The gprof program has been given a new command-line option:
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318 --external-symbols-table=<filename> which reads in symbols from a specified
319 file.
6e33da12 320
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321* The plugin target has been added to bfd. It can load the same shared objects
322 used by gold and uses them to provide basic support for new file formats.
323
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324* The verilog memory hex dump file format is now supported as an output format
325 for objcopy.
c067354b 326
92dd4511 327* Add --file-alignment, --heap, --image-base, --section-alignment,
a05a5b64 328 --stack and --subsystem command-line options to objcopy, which will
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329 set PE optional header.
330
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331* Option --dwarf/-W of objdump is now as flexible as readelf --debug-dump/-w.
332
333* --as-needed now links in a dynamic library if it satisfies undefined
334 symbols in regular objects, or in other dynamic libraries. In the
335 latter case the library is not linked if it is found in a DT_NEEDED
336 entry of one of the libraries already linked.
337
0dafdf3f 338* Added --prefix=PREFIX and --prefix-strip=LEVEL switches to objdump to
28024d9d 339 add absolute paths for -S.
0dafdf3f 340
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341* Add new option --use-nul-prefixed-import-tables to dlltool to allow fall-
342 back to old import table generation with null element prefix.
343
3aade688 344* Added --identify-strict switch to cause --identify <implib> to
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345 report an error when the import library is associated with
346 multiple DLLs.
347
348* Added --identify <implib> option to dlltool, which determines the
349 name of the DLL associated with the specified <implib>.
350
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351* Support for PowerPC booke64 instructions has been removed. The assembler no
352 longer accepts -mbooke32 or -mbooke64 and the disassembler no longer accepts
353 -Mbooke32 or -Mbooke64. Instead, -mbooke and -Mbooke should be used.
354
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355Changes in 2.19:
356
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357* Added -wL switch to dump decoded contents of .debug_line.
358
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359* Added support for "thin" archives which contain pathnames pointing to
360 object files rather than the files themselves and which contain a
361 flattened symbol index for all objects, and archives, which have been
362 added to the archive.
3aade688 363
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364* Added -F switch to objdump to include file offsets in the disassembly.
365
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366* Added -c switch to readelf to allow string dumps of archive symbol index.
367
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368* Support for SSE5 has been added to the i386 port.
369
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370* Added -p switch to readelf to allow string dumps of sections.
371
876c34bf 372Changes in 2.18:
98ec6e72 373
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374* Resolved 37 coding problems in bfd including static array overruns, null
375 pointer dereferences and use of a malloc buffer after it has been freed, as
376 revealed by static analysis donated by Coverity, Inc. (http://scan.coverity.com).
1e4cf259 377
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378* The binutils sources are now released under version 3 of the GNU General
379 Public License.
380
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381* A new tool "windmc" has been added for some targets. This is a message
382 compiler which attempts to be compatible with the MS version.
383
384* Add codepage support to the windres tool. It now supports many new
385 resource types (e.g. MANIFEST, TOOLBAR, etc). The output generation
386 for binary files is done now via bfd itself. The endianess problems
387 for different hosts are solved. Dumps of .res files can now be
388 re-compiled by windres without lossing resources or compilation errors.
389 Some problems on dialog resource translations are corrected.
d856f2dd 390
a05a5b64 391* Add --extract-symbol command-line option to objcopy, which will
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392 strip everything out of an ordinary object file or executable except
393 for its symbol table. Files containing just symbols can be useful
394 to some OSes.
395
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396Changes in 2.17:
397
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398* Add "-x NAME" to readelf in addition to "-x NUMBER".
399
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400* Add -i and -t switches to cxxfilt. -i disables the display of implementation
401 specific extra demangling information (if any) and -t disables the demangling
402 of types.
403
404* Add support for the "@<file>" syntax to the command lines of all tools, so
405 that extra switches can be read from <file>.
406
4de2ad99 407* Add "-W/--dwarf" to objdump to display the contents of the DWARF
cbf1f5df 408 debug sections.
4de2ad99 409
5477e8a0 410* Add "-t/--section-details" to readelf to display section details.
cbf1f5df 411 "-N/--full-section-name" is deprecated.
5477e8a0 412
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413* powerpc-linux ld now supports a variant form of PLT and GOT for the security
414 conscious. This form will automatically be chosen when ld detects that all
415 code in regular object files was generated by gcc -msecure-plt. The old PLT
416 and GOT may be forced by a new ld option, --bss-plt.
417
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418* Add "-i/--inlines" to addr2line to print enclosing scope information
419 for inlined function chains, back to first non-inlined function.
420
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421* Add "-N/--full-section-name" to readelf to display full section name.
422
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423* Add "-M entry:<addr>" switch to objdump to specify a function entry address
424 when disassembling VAX binaries.
425
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426* Add "--globalize-symbol <name>" and "--globalize-symbols <filename>" switches
427 to objcopy to convert local symbols into global symbols.
3aade688 428
9fbad737 429* gprof now allows input files to have histogram records for
3aade688 430 several memory ranges, provided those ranges are disjoint.
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431
432Changes in 2.16:
433
b12fe839 434* Add "-g/--section-groups" to readelf to display section groups.
81fc812e 435
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436* objcopy recognizes two new options --strip-unneeded-symbol and
437 --strip-unneeded-symbols, namely for use together with the wildcard
438 matching the original --strip-symbol/--strip-symbols provided, but
439 retaining any symbols matching but needed by relocations.
440
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441* readelf can now display address ranges from .debug_range sections. This
442 happens automatically when a DW_AT_range attribute is encountered. The
a05a5b64 443 command-line switch --debug-dump=Ranges (or -wR) can also be used to display
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444 the contents of the .debug_range section.
445
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446* nm and objdump now have a switch "--special-syms" to enable the displaying of
447 symbols which the target considers to be special. By default these symbols
448 are no longer displayed. Currently the only special symbols are the Mapping
449 symbols used by the ARM port to mark transitions between text and data and
450 between ARM and THUMB code.
451
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452* dlltool has a switch "--ext-prefix-alias <prefix>" to generate additional
453 import and export symbols with <preifx> prepended to them.
454
455Changes in 2.15:
456
e39893d7 457* objcopy for MIPS targets now accepts "-M no-aliases" as an option to the
9d317d34 458 disassembler to print the "raw" mips instruction mnemonic instead of some
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459 pseudo instruction name. I.E. print "daddu" or "or" instead of "move",
460 "sll" instead of "nop", etc.
461
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462* objcopy and strip can now take wildcard patterns in symbol names specified on
463 the command line provided that the --wildcard switch is used to enable them.
464
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465* readelf can now parse archives.
466
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467* objdump now accepts --debugging-tags to print the debug information in a
468 format compatible with ctags tool.
469
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470* objcopy and strip now accept --only-keep-debug to create a file containing
471 those sections that would be stripped out by --strip-debug. The idea is that
472 this can be used in conjunction with the --add-gnu-debuglink switch to create
473 a two part program distribution - one a stripped executable and the other the
474 debugging info.
475
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476* objcopy now accepts --add-gnu-debuglink=<file> to insert a .gnu_debuglink
477 section into a (presumably stripped) executable. This allows the debug
50c2245b 478 information for the file to be held in a separate file.
3aade688 479
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480* BFD marks the sections .comment and .note as 'n' in the BSD/POSIX
481 single-character representation. This can be checked by running nm
482 with the -a switch.
483
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484Changes in 2.14:
485
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486* Added --info switch to objcopy and strip.
487
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488* Support for Vitesse IQ2000 added by Red Hat.
489
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490* Added 'S' encoding to strings to allow the display of 8-bit characters.
491
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492* Added --prefix-symbols=<text>, --prefix-sections=<text> and
493 --prefix-alloc-sections=<text> to objcopy.
494
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495* readelf can handle the extensions to the DWARF2 spec used by the Unified
496 Parallel C compiler.
497
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498* BFD no longer declares a "boolean" type, to avoid clashes with other
499 headers that declare the same. Users of BFD should replace boolean,
500 false and true, with int, 0 and 1, or define their own boolean type.
501
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502* Support for IP2K added by Denis Chertykov.
503
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504Changes in 2.13:
505
506* Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400
507 and FR500 included.
252b5132 508
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509Changes in version 2.12:
510
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511* Support for Don Knuth's MMIX, by Hans-Peter Nilsson.
512
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513* size: Add --totals to display summary of sizes (Berkeley format only).
514
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515* readelf: Add --wide option to not break section header or segment listing
516 lines to fit into 80 columns.
517
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518* strings: Add --encoding to display wide character strings. By Markus Kuhn.
519
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520* objcopy: Add --rename-section to change section names.
521
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522* readelf: Support added for DWARF 2.1 extensions. Support added for
523 displaying the contents of .debug.macinfo sections.
524
a05a5b64 525* New command-line switches added to objcopy to allow symbols to be kept as
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526 global symbols, and also to specify files containing lists of such symbols.
527 by Honda Hiroki.
528
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529* Support for OpenRISC by Johan Rydberg.
530
a05a5b64 531* New command-line switch to objcopy --alt-machine-code which creates a binary
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532 with an alternate machine code if one is defined in the architecture
533 description. Only supported for ELF targets. By Alexandre Oliva.
534
a05a5b64 535* New command-line switch to objcopy -B (or --binary-architecture) which sets
09ad7db3 536 the architecture of the output file to the given argument. This option only
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537 makes sense, if the input target is binary. Otherwise it is ignored.
538 By Stefan Geuken.
539
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540* Support for PDP-11 by Lars Brinkhoff.
541
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542Changes in binutils 2.11:
543
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544* Add support for ARM v5t and v5te architectures and Intel's XScale ARM
545 extenstions.
546
a05a5b64 547* Add --srec-len and --srec-forceS3 command-line switch to objcopy.
077b8428 548 By Luciano Gemme.
7d036af2 549
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550* Support for the MIPS32, by Anders Norlander.
551
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552* Support for the i860, by Jason Eckhardt.
553
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554* Support for CRIS (Axis Communications ETRAX series).
555
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556Changes in binutils 2.10:
557
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558* Support for 64-bit ELF on HPPA.
559
a05a5b64 560* New command-line switch to objdump --file-start-context which shows the
f1563258 561 entire file contents up to the source line first encountered for a given
7d036af2 562 file.
f1563258 563
a05a5b64 564* New command-line switch to objdump -M (or --disassembler-options) which takes
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565 a parameter which can then be interpreted on a per-target basis by the
566 disassembler. Used by ARM targets to select register name sets, ISA, APCS or
567 raw verions.
7d036af2 568
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569* objdump support for -mi386:intel which causes disassembly to be displayed
570 with intel syntax.
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571
572* New program: readelf. This displays the contents of ELF format files,
573 regardless of target machine.
574
575* objcopy now takes --change-section-lma, --change-section-vma, and
576 --change-section-address options. The old --adjust-section-vma option is
577 equivalent to --change-section-address. The other --adjust-* options are now
578 renamed to --change-*, although --adjust-* continues to work.
579
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580* objcopy has a --redefine-sym option that lets you rename symbols.
581
582* objcopy now takes a -j/--only-section option to copy only the specified
583 sections.
584
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585* dlltool now supports the IMPORTS command.
586
587* dlltool now takes --export-all-symbols, --no-export-all-symbols,
588 --exclude-symbols, and --no-default-excludes options.
589
590Changes in binutils 2.9:
591
592* Added windres program, which can be used to manipulate resources in WIN32
593 files as used on Windows 95 and Windows NT.
594
595* The objcopy --gap-fill and --pad-to options operate on the LMA rather than
596 the VMA of the sections.
597
598* Added S modifier to ar to not build a symbol table.
599
600Changes in binutils 2.8:
601
602* The objdump disassembly format has been changed, and hopefully improved. Use
603 the new --prefix-addresses option to get the old format. There are also new
604 --disassemble-zeroes and --no-show-raw-insn options which affect disassembler
605 output.
606
607* Formats may now be specified as configuration triplets. For example,
608 objdump -b i386-pc-linux. The triplets are not passed through config.sub,
609 so they must be in canonical form.
610
611* Added new addr2line program. This uses the debugging information to convert
612 an address into a file name and line number within a program.
613
614* Added --change-leading-char argument to objcopy.
615
616* Added --weaken argument to objcopy.
617
618* objdump --dynamic-reloc now works on ELF executables and shared libraries.
619
620* Added --adjust-vma option to objdump.
621
622* Added -C/--demangle option to objdump.
623
624* Added -p/--preserve-dates option to strip and objcopy.
625
626Changes in binutils 2.7:
627
628* Added --enable-shared and --enable-commonbfdlib options to configure.
629
630* Added --debugging argument to objdump and objcopy.
631
632* Added --defined-only argument to nm.
633
634* Added --remove-leading-char argument to objcopy.
635
636* The objdump --line-numbers option is now meaningful with --reloc.
637
638* Added --line-numbers option to nm.
639
640* Added --endian/-EB/-EL option to objdump.
641
642* Added support for Alpha OpenVMS/AXP.
643
644Changes in binutils 2.6:
645
646* Added -N/--strip-symbol and -K/--keep-symbol arguments to strip and objcopy.
647
648* Added several arguments to objcopy to provide some control over how the new
649 file is laid out in memory. Also added binary output format to BFD to permit
650 generating plain binary files.
651
652* Added --start-address and --stop-address options to objdump.
653
654* ar and ranlib now work on AIX. The tools are now built by default on AIX.
655
656Changes in binutils 2.5:
657
658* Changed objdump -dr to dump the relocs interspersed with the assembly
1049f94e 659 listing, for a more useful listing of relocatable files.
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660
661* Changed objdump -d/--disassemble to only disassemble SEC_CODE sections.
662 Added -D/--disassemble-all option to disassemble all sections.
663
664* Added --size-sort option to nm.
665
666* strip and objcopy should now be able to handle dynamically linked ELF
667 executables.
668
669Changes in binutils 2.4:
670
671* Support for HP-PA (by Jeff Law), i386 Mach (by David Mackenzie), RS/6000 and
672 PowerPC (except ar and ranlib; by Ian Taylor).
673
674* Support for Irix 5.
675
676* Programs `strip' and `objcopy' will not attempt to write dynamically linked
677 ELF output files, since BFD currently can't create them properly.
678
679Changes in binutils 2.3:
680
681* A new --stabs argument has been added to objdump to dump stabs sections in
682 ELF and COFF files.
683
684* A new program, nlmconv, has been added. It can convert object files into
685 Novell NetWare Loadable Modules.
686
687* The strings program has been added.
688
689Changes in binutils 2.2:
690
691* The 'copy' program has been renamed to 'objcopy', for consistency with
692 'objdump', and because 'copy' might more plausibly be used as a synonym for
693 'cp'.
694
695* The new stand-alone program c++filt is a filter that converts encoded
696 (mangled) C++ assembly-level identifiers to user-level names. (Note: This
697 may get moved to the gcc distribution.)
698
699* nm -o on an archive now prefixes each line with the archive name, matching
700 the output from BSD nm.
701
702* ar (and ld) can now read (but not write) BSD4.4-style archives.
703
704* New support for H8500, Z8000, and the Hitach SH.
705
706* Dis-assembler interface changed to allow sharing with gdb.
707
708* There is new Elf code, but it is not yet ready for general use.
709
710* There is the beginnings of a test suite.
711
712Changes in binutils 2.1:
713
714* There is now support for writing ECOFF files, so ld and the other utilities
715 should work on Risc/Ultrix and Irix. Please let us know how well this works.
716
717* ar now automatically creates a symbol table (a __.SYMDEF member, in the BSD
718 version), if there are any object files in the archive. So running ranlib is
719 now redundant (unless the non-standard q command is used). This is required
720 for Posix.2 conformance.
721
722* The archive-reading code now reads both BSD-style and SYSV-style archives
723 independently of the selected target format. This is to encourage people to
724 switch to SYSV-format, which has a number of advantages.
725
726* The strip and copy programs now have options to remove debug-symbols only
727 and/or local symbols only. They now also support long options.
728
729\f
b3adc24a 730Copyright (C) 2012-2020 Free Software Foundation, Inc.
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731
732Copying and distribution of this file, with or without modification,
733are permitted in any medium without royalty provided the copyright
734notice and this notice are preserved.
735
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736Local variables:
737fill-column: 79
738End:
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