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[/] [openrisc/] [trunk/] [gnu-stable/] [binutils-2.20.1/] [binutils/] [NEWS] - Blame information for rev 818

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1 205 julius
-*- text -*-
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Changes in 2.20:
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5
* Add support for delay importing to dlltool.  Use the --output-delaylib 
6
  switch to create a delay-import library.  The resulting app will load the dll
7
  as soon as the first function is called.  It will link to __delayLoadHelper2()
8
  from the static delayimp library, which will import LoadLibraryA and
9
  GetProcAddress from kernel32.
10
 
11
* Add a new command line option, --insn-width=WIDTH, to objdump to specify
12
  number of bytes to be displayed on a single line when disassembling
13
  instructions.
14
 
15
* Readelf can now display the relocated contents of a section as a sequence
16
  of bytes via the --relocated-dump= command line option.
17
 
18
* The gprof program has been given a new command line option:
19
  --external-symbols-table= which reads in symbols from a specified
20
  file.
21
 
22
* The plugin target has been added to bfd. It can load the same shared objects
23
  used by gold and uses them to provide basic support for new file formats.
24
 
25
* The verilog memory hex dump file format is now supported as an output format
26
  for objcopy.
27
 
28
* Add --file-alignment, --heap, --image-base, --section-alignment,
29
  --stack and --subsystem command line options to objcopy, which will
30
  set PE optional header.
31
 
32
* Option --dwarf/-W of objdump is now as flexible as readelf --debug-dump/-w.
33
 
34
* --as-needed now links in a dynamic library if it satisfies undefined
35
  symbols in regular objects, or in other dynamic libraries.  In the
36
  latter case the library is not linked if it is found in a DT_NEEDED
37
  entry of one of the libraries already linked.
38
 
39
* Added --prefix=PREFIX and --prefix-strip=LEVEL switches to objdump to
40
  add absolute paths for -S.
41
 
42
* Add new option --use-nul-prefixed-import-tables to dlltool to allow fall-
43
  back to old import table generation with null element prefix.
44
 
45
* Added --identify-strict switch to cause --identify  to
46
  report an error when the import library is associated with
47
  multiple DLLs.
48
 
49
* Added --identify  option to dlltool, which determines the
50
  name of the DLL associated with the specified .
51
 
52
* Support for PowerPC booke64 instructions has been removed.  The assembler no
53
  longer accepts -mbooke32 or -mbooke64 and the disassembler no longer accepts
54
  -Mbooke32 or -Mbooke64.  Instead, -mbooke and -Mbooke should be used.
55
 
56
Changes in 2.19:
57
 
58
* Added -wL switch to dump decoded contents of .debug_line.
59
 
60
* Added support for "thin" archives which contain pathnames pointing to
61
  object files rather than the files themselves and which contain a
62
  flattened symbol index for all objects, and archives, which have been
63
  added to the archive.
64
 
65
* Added -F switch to objdump to include file offsets in the disassembly.
66
 
67
* Added -c switch to readelf to allow string dumps of archive symbol index.
68
 
69
* Support for SSE5 has been added to the i386 port.
70
 
71
* Added -p switch to readelf to allow string dumps of sections.
72
 
73
Changes in 2.18:
74
 
75
* Resolved 37 coding problems in bfd including static array overruns, null
76
  pointer dereferences and use of a malloc buffer after it has been freed, as
77
  revealed by static analysis donated by Coverity, Inc. (http://scan.coverity.com).
78
 
79
* The binutils sources are now released under version 3 of the GNU General
80
  Public License.
81
 
82
* A new tool "windmc" has been added for some targets.  This is a message
83
  compiler which attempts to be compatible with the MS version.
84
 
85
* Add codepage support to the windres tool.  It now supports many new
86
  resource types (e.g. MANIFEST, TOOLBAR, etc).  The output generation
87
  for binary files is done now via bfd itself.  The endianess problems
88
  for different hosts are solved.  Dumps of .res files can now be
89
  re-compiled by windres without lossing resources or compilation errors.
90
  Some problems on dialog resource translations are corrected.
91
 
92
* Add --extract-symbol command line option to objcopy, which will
93
  strip everything out of an ordinary object file or executable except
94
  for its symbol table.  Files containing just symbols can be useful
95
  to some OSes.
96
 
97
Changes in 2.17:
98
 
99
* Add "-x NAME" to readelf in addition to "-x NUMBER".
100
 
101
* Add -i and -t switches to cxxfilt.  -i disables the display of implementation
102
  specific extra demangling information (if any) and -t disables the demangling
103
  of types.
104
 
105
* Add support for the "@" syntax to the command lines of all tools, so
106
  that extra switches can be read from .
107
 
108
* Add "-W/--dwarf" to objdump to display the contents of the DWARF
109
  debug sections.
110
 
111
* Add "-t/--section-details" to readelf to display section details.
112
  "-N/--full-section-name" is deprecated.
113
 
114
* powerpc-linux ld now supports a variant form of PLT and GOT for the security
115
  conscious.  This form will automatically be chosen when ld detects that all
116
  code in regular object files was generated by gcc -msecure-plt.  The old PLT
117
  and GOT may be forced by a new ld option, --bss-plt.
118
 
119
* Add "-i/--inlines" to addr2line to print enclosing scope information
120
  for inlined function chains, back to first non-inlined function.
121
 
122
* Add "-N/--full-section-name" to readelf to display full section name.
123
 
124
* Add "-M entry:" switch to objdump to specify a function entry address
125
  when disassembling VAX binaries.
126
 
127
* Add "--globalize-symbol " and "--globalize-symbols " switches
128
  to objcopy to convert local symbols into global symbols.
129
 
130
* gprof now allows input files to have histogram records for
131
  several memory ranges, provided those ranges are disjoint.
132
 
133
Changes in 2.16:
134
 
135
* Add "-g/--section-groups" to readelf to display section groups.
136
 
137
* objcopy recognizes two new options --strip-unneeded-symbol and
138
  --strip-unneeded-symbols, namely for use together with the wildcard
139
  matching the original --strip-symbol/--strip-symbols provided, but
140
  retaining any symbols matching but needed by relocations.
141
 
142
* readelf can now display address ranges from .debug_range sections.  This
143
  happens automatically when a DW_AT_range attribute is encountered.  The
144
  command line switch --debug-dump=Ranges (or -wR) can also be used to display
145
  the contents of the .debug_range section.
146
 
147
* nm and objdump now have a switch "--special-syms" to enable the displaying of
148
  symbols which the target considers to be special.  By default these symbols
149
  are no longer displayed.  Currently the only special symbols are the Mapping
150
  symbols used by the ARM port to mark transitions between text and data and
151
  between ARM and THUMB code.
152
 
153
* dlltool has a switch "--ext-prefix-alias " to generate additional
154
  import and export symbols with  prepended to them.
155
 
156
Changes in 2.15:
157
 
158
* objcopy for MIPS targets now accepts "-M no-aliases" as an option to the
159
  disassembler to print the "raw" mips instruction mnemonic instead of some
160
  pseudo instruction name.  I.E. print "daddu" or "or" instead of "move",
161
  "sll" instead of "nop", etc.
162
 
163
* objcopy and strip can now take wildcard patterns in symbol names specified on
164
  the command line provided that the --wildcard switch is used to enable them.
165
 
166
* readelf can now parse archives.
167
 
168
* objdump now accepts --debugging-tags to print the debug information in a
169
  format compatible with ctags tool.
170
 
171
* objcopy and strip now accept --only-keep-debug to create a file containing
172
  those sections that would be stripped out by --strip-debug.  The idea is that
173
  this can be used in conjunction with the --add-gnu-debuglink switch to create
174
  a two part program distribution - one a stripped executable and the other the
175
  debugging info.
176
 
177
* objcopy now accepts --add-gnu-debuglink= to insert a .gnu_debuglink
178
  section into a (presumably stripped) executable.  This allows the debug
179
  information for the file to be held in a separate file.
180
 
181
* BFD marks the sections .comment and .note as 'n' in the BSD/POSIX
182
  single-character representation.  This can be checked by running nm
183
  with the -a switch.
184
 
185
Changes in 2.14:
186
 
187
* Added --info switch to objcopy and strip.
188
 
189
* Support for Vitesse IQ2000 added by Red Hat.
190
 
191
* Added 'S' encoding to strings to allow the display of 8-bit characters.
192
 
193
* Added --prefix-symbols=, --prefix-sections= and
194
  --prefix-alloc-sections= to objcopy.
195
 
196
* readelf can handle the extensions to the DWARF2 spec used by the Unified
197
  Parallel C compiler.
198
 
199
* BFD no longer declares a "boolean" type, to avoid clashes with other
200
  headers that declare the same.  Users of BFD should replace boolean,
201
  false and true, with int, 0 and 1, or define their own boolean type.
202
 
203
* Support for IP2K added by Denis Chertykov.
204
 
205
Changes in 2.13:
206
 
207
* Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400
208
  and FR500 included.
209
 
210
Changes in version 2.12:
211
 
212
* Support for Don Knuth's MMIX, by Hans-Peter Nilsson.
213
 
214
* size: Add --totals to display summary of sizes (Berkeley format only).
215
 
216
* readelf: Add --wide option to not break section header or segment listing
217
  lines to fit into 80 columns.
218
 
219
* strings: Add --encoding to display wide character strings.  By Markus Kuhn.
220
 
221
* objcopy: Add --rename-section to change section names.
222
 
223
* readelf: Support added for DWARF 2.1 extensions.  Support added for
224
  displaying the contents of .debug.macinfo sections.
225
 
226
* New command line switches added to objcopy to allow symbols to be kept as
227
  global symbols, and also to specify files containing lists of such symbols.
228
  by Honda Hiroki.
229
 
230
* Support for OpenRISC by Johan Rydberg.
231
 
232
* New command line switch to objcopy --alt-machine-code which creates a binary
233
  with an alternate machine code if one is defined in the architecture
234
  description.  Only supported for ELF targets.  By Alexandre Oliva.
235
 
236
* New command line switch to objcopy -B (or --binary-architecture) which sets
237
  the architecture of the output file to the given argument.  This option only
238
  makes sense, if the input target is binary.  Otherwise it is ignored.
239
  By Stefan Geuken.
240
 
241
* Support for PDP-11 by Lars Brinkhoff.
242
 
243
Changes in binutils 2.11:
244
 
245
* Add support for ARM v5t and v5te architectures and Intel's XScale ARM
246
  extenstions.
247
 
248
* Add --srec-len and --srec-forceS3 command line switch to objcopy.
249
  By Luciano Gemme.
250
 
251
* Support for the MIPS32, by Anders Norlander.
252
 
253
* Support for the i860, by Jason Eckhardt.
254
 
255
* Support for CRIS (Axis Communications ETRAX series).
256
 
257
Changes in binutils 2.10:
258
 
259
* Support for 64-bit ELF on HPPA.
260
 
261
* New command line switch to objdump --file-start-context which shows the
262
  entire file contents up to the source line first encountered for a given
263
  file.
264
 
265
* New command line switch to objdump -M (or --disassembler-options) which takes
266
  a parameter which can then be interpreted on a per-target basis by the
267
  disassembler.  Used by ARM targets to select register name sets, ISA, APCS or
268
  raw verions.
269
 
270
* objdump support for -mi386:intel which causes disassembly to be displayed
271
  with intel syntax.
272
 
273
* New program: readelf.  This displays the contents of ELF format files,
274
  regardless of target machine.
275
 
276
* objcopy now takes --change-section-lma, --change-section-vma, and
277
  --change-section-address options.  The old --adjust-section-vma option is
278
  equivalent to --change-section-address.  The other --adjust-* options are now
279
  renamed to --change-*, although --adjust-* continues to work.
280
 
281
* objcopy has a --redefine-sym option that lets you rename symbols.
282
 
283
* objcopy now takes a -j/--only-section option to copy only the specified
284
  sections.
285
 
286
* dlltool now supports the IMPORTS command.
287
 
288
* dlltool now takes --export-all-symbols, --no-export-all-symbols,
289
  --exclude-symbols, and --no-default-excludes options.
290
 
291
Changes in binutils 2.9:
292
 
293
* Added windres program, which can be used to manipulate resources in WIN32
294
  files as used on Windows 95 and Windows NT.
295
 
296
* The objcopy --gap-fill and --pad-to options operate on the LMA rather than
297
  the VMA of the sections.
298
 
299
* Added S modifier to ar to not build a symbol table.
300
 
301
Changes in binutils 2.8:
302
 
303
* The objdump disassembly format has been changed, and hopefully improved.  Use
304
  the new --prefix-addresses option to get the old format.  There are also new
305
  --disassemble-zeroes and --no-show-raw-insn options which affect disassembler
306
  output.
307
 
308
* Formats may now be specified as configuration triplets.  For example,
309
  objdump -b i386-pc-linux.  The triplets are not passed through config.sub,
310
  so they must be in canonical form.
311
 
312
* Added new addr2line program.  This uses the debugging information to convert
313
  an address into a file name and line number within a program.
314
 
315
* Added --change-leading-char argument to objcopy.
316
 
317
* Added --weaken argument to objcopy.
318
 
319
* objdump --dynamic-reloc now works on ELF executables and shared libraries.
320
 
321
* Added --adjust-vma option to objdump.
322
 
323
* Added -C/--demangle option to objdump.
324
 
325
* Added -p/--preserve-dates option to strip and objcopy.
326
 
327
Changes in binutils 2.7:
328
 
329
* Added --enable-shared and --enable-commonbfdlib options to configure.
330
 
331
* Added --debugging argument to objdump and objcopy.
332
 
333
* Added --defined-only argument to nm.
334
 
335
* Added --remove-leading-char argument to objcopy.
336
 
337
* The objdump --line-numbers option is now meaningful with --reloc.
338
 
339
* Added --line-numbers option to nm.
340
 
341
* Added --endian/-EB/-EL option to objdump.
342
 
343
* Added support for Alpha OpenVMS/AXP.
344
 
345
Changes in binutils 2.6:
346
 
347
* Added -N/--strip-symbol and -K/--keep-symbol arguments to strip and objcopy.
348
 
349
* Added several arguments to objcopy to provide some control over how the new
350
  file is laid out in memory.  Also added binary output format to BFD to permit
351
  generating plain binary files.
352
 
353
* Added --start-address and --stop-address options to objdump.
354
 
355
* ar and ranlib now work on AIX.  The tools are now built by default on AIX.
356
 
357
Changes in binutils 2.5:
358
 
359
* Changed objdump -dr to dump the relocs interspersed with the assembly
360
  listing, for a more useful listing of relocatable files.
361
 
362
* Changed objdump -d/--disassemble to only disassemble SEC_CODE sections.
363
  Added -D/--disassemble-all option to disassemble all sections.
364
 
365
* Added --size-sort option to nm.
366
 
367
* strip and objcopy should now be able to handle dynamically linked ELF
368
  executables.
369
 
370
Changes in binutils 2.4:
371
 
372
* Support for HP-PA (by Jeff Law), i386 Mach (by David Mackenzie), RS/6000 and
373
  PowerPC (except ar and ranlib; by Ian Taylor).
374
 
375
* Support for Irix 5.
376
 
377
* Programs `strip' and `objcopy' will not attempt to write dynamically linked
378
  ELF output files, since BFD currently can't create them properly.
379
 
380
Changes in binutils 2.3:
381
 
382
* A new --stabs argument has been added to objdump to dump stabs sections in
383
  ELF and COFF files.
384
 
385
* A new program, nlmconv, has been added.  It can convert object files into
386
  Novell NetWare Loadable Modules.
387
 
388
* The strings program has been added.
389
 
390
Changes in binutils 2.2:
391
 
392
* The 'copy' program has been renamed to 'objcopy', for consistency with
393
  'objdump', and because 'copy' might more plausibly be used as a synonym for
394
  'cp'.
395
 
396
* The new stand-alone program c++filt is a filter that converts encoded
397
  (mangled) C++ assembly-level identifiers to user-level names.  (Note: This
398
  may get moved to the gcc distribution.)
399
 
400
* nm -o on an archive now prefixes each line with the archive name, matching
401
  the output from BSD nm.
402
 
403
* ar (and ld) can now read (but not write) BSD4.4-style archives.
404
 
405
* New support for H8500, Z8000, and the Hitach SH.
406
 
407
* Dis-assembler interface changed to allow sharing with gdb.
408
 
409
* There is new Elf code, but it is not yet ready for general use.
410
 
411
* There is the beginnings of a test suite.
412
 
413
Changes in binutils 2.1:
414
 
415
* There is now support for writing ECOFF files, so ld and the other utilities
416
  should work on Risc/Ultrix and Irix.  Please let us know how well this works.
417
 
418
* ar now automatically creates a symbol table (a __.SYMDEF member, in the BSD
419
  version), if there are any object files in the archive.  So running ranlib is
420
  now redundant (unless the non-standard q command is used).  This is required
421
  for Posix.2 conformance.
422
 
423
* The archive-reading code now reads both BSD-style and SYSV-style archives
424
  independently of the selected target format.  This is to encourage people to
425
  switch to SYSV-format, which has a number of advantages.
426
 
427
* The strip and copy programs now have options to remove debug-symbols only
428
  and/or local symbols only.  They now also support long options.
429
 
430
 
431
Local variables:
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fill-column: 79
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