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1 | \input texinfo.tex @c -*-texinfo-*- | |
2 | @c @ifnothtml | |
3 | @c %**start of header | |
4 | @setfilename install.info | |
5 | @settitle Installing GCC | |
6 | @setchapternewpage odd | |
7 | @c %**end of header | |
8 | @c @end ifnothtml | |
9 | ||
10 | @c Specify title for specific html page | |
11 | @ifset indexhtml | |
12 | @settitle Installing GCC | |
13 | @end ifset | |
14 | @ifset specifichtml | |
15 | @settitle Host/Target specific installation notes for GCC | |
16 | @end ifset | |
17 | @ifset downloadhtml | |
18 | @settitle Downloading GCC | |
19 | @end ifset | |
20 | @ifset configurehtml | |
21 | @settitle Installing GCC: Configuration | |
22 | @end ifset | |
23 | @ifset buildhtml | |
24 | @settitle Installing GCC: Building | |
25 | @end ifset | |
26 | @ifset testhtml | |
27 | @settitle Installing GCC: Testing | |
28 | @end ifset | |
29 | @ifset finalinstallhtml | |
30 | @settitle Installing GCC: Final installation | |
31 | @end ifset | |
32 | @ifset binarieshtml | |
33 | @settitle Installing GCC: Binaries | |
34 | @end ifset | |
35 | @ifset oldhtml | |
36 | @settitle Installing GCC: Old documentation | |
37 | @end ifset | |
38 | @ifset gfdlhtml | |
39 | @settitle Installing GCC: GNU Free Documentation License | |
40 | @end ifset | |
41 | ||
42 | @c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, | |
43 | @c 1999, 2000, 2001, 2002 Free Software Foundation, Inc. | |
44 | @c *** Converted to texinfo by Dean Wakerley, dean@wakerley.com | |
45 | ||
46 | @c Include everything if we're not making html | |
47 | @ifnothtml | |
48 | @set indexhtml | |
49 | @set specifichtml | |
50 | @set downloadhtml | |
51 | @set configurehtml | |
52 | @set buildhtml | |
53 | @set testhtml | |
54 | @set finalinstallhtml | |
55 | @set binarieshtml | |
56 | @set oldhtml | |
57 | @set gfdlhtml | |
58 | @end ifnothtml | |
59 | ||
60 | @c Part 2 Summary Description and Copyright | |
61 | @macro copyrightnotice | |
62 | Copyright @copyright{} 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, | |
63 | 1999, 2000, 2001, 2002 Free Software Foundation, Inc. | |
64 | @sp 1 | |
65 | Permission is granted to copy, distribute and/or modify this document | |
66 | under the terms of the GNU Free Documentation License, Version 1.1 or | |
67 | any later version published by the Free Software Foundation; with no | |
68 | Invariant Sections, the Front-Cover texts being (a) (see below), and | |
69 | with the Back-Cover Texts being (b) (see below). A copy of the | |
70 | license is included in the section entitled ``@uref{./gfdl.html,,GNU | |
71 | Free Documentation License}''. | |
72 | ||
73 | (a) The FSF's Front-Cover Text is: | |
74 | ||
75 | A GNU Manual | |
76 | ||
77 | (b) The FSF's Back-Cover Text is: | |
78 | ||
79 | You have freedom to copy and modify this GNU Manual, like GNU | |
80 | software. Copies published by the Free Software Foundation raise | |
81 | funds for GNU development. | |
82 | @end macro | |
83 | @ifinfo | |
84 | @copyrightnotice{} | |
85 | @end ifinfo | |
86 | ||
87 | @c Part 3 Titlepage and Copyright | |
88 | @titlepage | |
89 | @sp 10 | |
90 | @comment The title is printed in a large font. | |
91 | @center @titlefont{Installing GCC} | |
92 | ||
93 | @c The following two commands start the copyright page. | |
94 | @page | |
95 | @vskip 0pt plus 1filll | |
96 | @copyrightnotice{} | |
97 | @end titlepage | |
98 | ||
99 | @c Part 4 Top node and Master Menu | |
100 | @ifinfo | |
101 | @node Top, , , (dir) | |
102 | @comment node-name, next, Previous, up | |
103 | ||
104 | @menu | |
105 | * Installing GCC:: This document describes the generic installation | |
106 | procedure for GCC as well as detailing some target | |
107 | specific installation instructions. | |
108 | ||
109 | * Specific:: Host/target specific installation notes for GCC. | |
110 | * Binaries:: Where to get pre-compiled binaries. | |
111 | ||
112 | * Old:: Old installation documentation. | |
113 | ||
114 | * GNU Free Documentation License:: How you can copy and share this manual. | |
115 | * Concept Index:: This index has two entries. | |
116 | @end menu | |
117 | @end ifinfo | |
118 | ||
119 | @c Part 5 The Body of the Document | |
120 | @c ***Installing GCC********************************************************** | |
121 | @ifnothtml | |
122 | @comment node-name, next, previous, up | |
123 | @node Installing GCC, Binaries, , Top | |
124 | @end ifnothtml | |
125 | @ifset indexhtml | |
126 | @html | |
127 | <h1 align="center">Installing GCC</h1> | |
128 | @end html | |
129 | @ifnothtml | |
130 | @chapter Installing GCC | |
131 | @end ifnothtml | |
132 | ||
133 | The latest version of this document is always available at | |
134 | @uref{http://gcc.gnu.org/install/,,http://gcc.gnu.org/install/}. | |
135 | ||
136 | This document describes the generic installation procedure for GCC as well | |
137 | as detailing some target specific installation instructions. | |
138 | ||
139 | GCC includes several components that previously were separate distributions | |
140 | with their own installation instructions. This document supersedes all | |
141 | package specific installation instructions. | |
142 | ||
143 | @emph{Before} starting the build/install procedure please check the | |
144 | @ifnothtml | |
145 | @ref{Specific, host/target specific installation notes}. | |
146 | @end ifnothtml | |
147 | @ifhtml | |
148 | @uref{specific.html,,host/target specific installation notes}. | |
149 | @end ifhtml | |
150 | We recommend you browse the entire generic installation instructions before | |
151 | you proceed. | |
152 | ||
153 | Lists of successful builds for released versions of GCC are | |
154 | available at our web pages for | |
155 | @uref{http://gcc.gnu.org/gcc-3.1/buildstat.html,,3.1}, | |
156 | @uref{http://gcc.gnu.org/gcc-3.0/buildstat.html,,3.0} | |
157 | and | |
158 | @uref{http://gcc.gnu.org/gcc-2.95/buildstat.html,,2.95}. | |
159 | These lists are updated as new information becomes available. | |
160 | ||
161 | The installation procedure itself is broken into five steps. | |
162 | ||
163 | @ifinfo | |
164 | @menu | |
165 | * Downloading the source:: | |
166 | * Configuration:: | |
167 | * Building:: | |
168 | * Testing:: (optional) | |
169 | * Final install:: | |
170 | @end menu | |
171 | @end ifinfo | |
172 | @ifhtml | |
173 | @enumerate | |
174 | @item | |
175 | @uref{download.html,,Downloading the source} | |
176 | @item | |
177 | @uref{configure.html,,Configuration} | |
178 | @item | |
179 | @uref{build.html,,Building} | |
180 | @item | |
181 | @uref{test.html,,Testing} (optional) | |
182 | @item | |
183 | @uref{finalinstall.html,,Final install} | |
184 | @end enumerate | |
185 | @end ifhtml | |
186 | ||
187 | Please note that GCC does not support @samp{make uninstall} and probably | |
188 | won't do so in the near future as this would open a can of worms. Instead, | |
189 | we suggest that you install GCC into a directory of its own and simply | |
190 | remove that directory when you do not need that specific version of GCC | |
191 | any longer, and, if shared libraries are installed there as well, no | |
192 | more binaries exist that use them. | |
193 | ||
194 | @ifhtml | |
195 | There are also some @uref{old.html,,old installation instructions}, | |
196 | which are mostly obsolete but still contain some information which has | |
197 | not yet been merged into the main part of this manual. | |
198 | @end ifhtml | |
199 | ||
200 | @html | |
201 | <hr> | |
202 | <p> | |
203 | @end html | |
204 | @ifhtml | |
205 | @uref{./index.html,,Return to the GCC Installation page} | |
206 | ||
207 | @copyrightnotice{} | |
208 | @end ifhtml | |
209 | @end ifset | |
210 | ||
211 | @c ***Downloading the source************************************************** | |
212 | @ifnothtml | |
213 | @comment node-name, next, previous, up | |
214 | @node Downloading the source, Configuration, , Installing GCC | |
215 | @end ifnothtml | |
216 | @ifset downloadhtml | |
217 | @html | |
218 | <h1 align="center">Downloading GCC</h1> | |
219 | @end html | |
220 | @ifnothtml | |
221 | @chapter Downloading GCC | |
222 | @end ifnothtml | |
223 | @cindex Downloading GCC | |
224 | @cindex Downloading the Source | |
225 | ||
226 | GCC is distributed via @uref{http://gcc.gnu.org/cvs.html,,CVS} and FTP | |
227 | tarballs compressed with @command{gzip} or | |
228 | @command{bzip2}. It is possible to download a full distribution or specific | |
229 | components. | |
230 | ||
231 | Please refer to our @uref{http://gcc.gnu.org/releases.html,,releases web page} | |
232 | for information on how to obtain GCC@. | |
233 | ||
234 | The full distribution includes the C, C++, Objective-C, Fortran, Java, | |
235 | and Ada (in case of GCC 3.1 and later) compilers. The full distribution | |
236 | also includes runtime libraries for C++, Objective-C, Fortran, and Java. | |
237 | In GCC 3.0 and later versions, GNU compiler testsuites are also included | |
238 | in the full distribution. | |
239 | ||
240 | If you choose to download specific components, you must download the core | |
241 | GCC distribution plus any language specific distributions you wish to | |
242 | use. The core distribution includes the C language front end as well as the | |
243 | shared components. Each language has a tarball which includes the language | |
244 | front end as well as the language runtime (when appropriate). | |
245 | ||
246 | Unpack the core distribution as well as any language specific | |
247 | distributions in the same directory. | |
248 | ||
249 | If you also intend to build binutils (either to upgrade an existing | |
250 | installation or for use in place of the corresponding tools of your | |
251 | OS), unpack the binutils distribution either in the same directory or | |
252 | a separate one. In the latter case, add symbolic links to any | |
253 | components of the binutils you intend to build alongside the compiler | |
254 | (@file{bfd}, @file{binutils}, @file{gas}, @file{gprof}, @file{ld}, | |
255 | @file{opcodes}, @dots{}) to the directory containing the GCC sources. | |
256 | ||
257 | @html | |
258 | <hr> | |
259 | <p> | |
260 | @end html | |
261 | @ifhtml | |
262 | @uref{./index.html,,Return to the GCC Installation page} | |
263 | @end ifhtml | |
264 | @end ifset | |
265 | ||
266 | @c ***Configuration*********************************************************** | |
267 | @ifnothtml | |
268 | @comment node-name, next, previous, up | |
269 | @node Configuration, Building, Downloading the source, Installing GCC | |
270 | @end ifnothtml | |
271 | @ifset configurehtml | |
272 | @html | |
273 | <h1 align="center">Installing GCC: Configuration</h1> | |
274 | @end html | |
275 | @ifnothtml | |
276 | @chapter Installing GCC: Configuration | |
277 | @end ifnothtml | |
278 | @cindex Configuration | |
279 | @cindex Installing GCC: Configuration | |
280 | ||
281 | Like most GNU software, GCC must be configured before it can be built. | |
282 | This document describes the recommended configuration procedure | |
283 | for both native and cross targets. | |
284 | ||
285 | We use @var{srcdir} to refer to the toplevel source directory for | |
286 | GCC; we use @var{objdir} to refer to the toplevel build/object directory. | |
287 | ||
288 | If you obtained the sources via CVS, @var{srcdir} must refer to the top | |
289 | @file{gcc} directory, the one where the @file{MAINTAINERS} can be found, | |
290 | and not its @file{gcc} subdirectory, otherwise the build will fail. | |
291 | ||
292 | First, in general, GCC @strong{must} be built into a separate directory | |
293 | than the sources which does @strong{not} reside within the source tree. | |
294 | This is how almost all developers build GCC; building where @var{srcdir} | |
295 | == @var{objdir} is completely unsupported; building where @var{objdir} | |
296 | is a subdirectory of @var{srcdir} is completely unsupported. | |
297 | ||
298 | If you have previously built GCC in the same directory for a | |
299 | different target machine, do @samp{make distclean} to delete all files | |
300 | that might be invalid. One of the files this deletes is | |
301 | @file{Makefile}; if @samp{make distclean} complains that @file{Makefile} | |
302 | does not exist, it probably means that the directory is already suitably | |
303 | clean. However, with the recommended method of building in a separate | |
304 | @var{objdir}, you should simply use a different @var{objdir} for each | |
305 | target. | |
306 | ||
307 | Second, when configuring a native system, either @command{cc} or | |
308 | @command{gcc} must be in your path or you must set @env{CC} in | |
309 | your environment before running configure. Otherwise the configuration | |
310 | scripts may fail. | |
311 | ||
312 | Note that the bootstrap compiler and the resulting GCC must be link | |
313 | compatible, else the bootstrap will fail with linker errors about | |
314 | incompatible object file formats. Several multilibed targets are | |
315 | affected by this requirement, see | |
316 | @ifnothtml | |
317 | @ref{Specific, host/target specific installation notes}. | |
318 | @end ifnothtml | |
319 | @ifhtml | |
320 | @uref{specific.html,,host/target specific installation notes}. | |
321 | @end ifhtml | |
322 | ||
323 | To configure GCC: | |
324 | ||
325 | @example | |
326 | % mkdir @var{objdir} | |
327 | % cd @var{objdir} | |
328 | % @var{srcdir}/configure [@var{options}] [@var{target}] | |
329 | @end example | |
330 | ||
331 | ||
332 | @heading Target specification | |
333 | @itemize @bullet | |
334 | @item | |
335 | GCC has code to correctly determine the correct value for @var{target} | |
336 | for nearly all native systems. Therefore, we highly recommend you not | |
337 | provide a configure target when configuring a native compiler. | |
338 | ||
339 | @item | |
340 | @var{target} must be specified as @option{--target=@var{target}} | |
341 | when configuring a cross compiler; examples of valid targets would be | |
342 | i960-rtems, m68k-coff, sh-elf, etc. | |
343 | ||
344 | @item | |
345 | Specifying just @var{target} instead of @option{--target=@var{target}} | |
346 | implies that the host defaults to @var{target}. | |
347 | @end itemize | |
348 | ||
349 | ||
350 | @heading Options specification | |
351 | ||
352 | Use @var{options} to override several configure time options for | |
353 | GCC@. A list of supported @var{options} follows; @command{configure | |
354 | --help} may list other options, but those not listed below may not | |
355 | work and should not normally be used. | |
356 | ||
357 | @table @code | |
358 | @item --prefix=@var{dirname} | |
359 | Specify the toplevel installation | |
360 | directory. This is the recommended way to install the tools into a directory | |
361 | other than the default. The toplevel installation directory defaults to | |
362 | @file{/usr/local}. | |
363 | ||
364 | We @strong{highly} recommend against @var{dirname} being the same or a | |
365 | subdirectory of @var{objdir} or vice versa. | |
366 | ||
367 | These additional options control where certain parts of the distribution | |
368 | are installed. Normally you should not need to use these options. | |
369 | @table @code | |
370 | ||
371 | @item --exec-prefix=@var{dirname} | |
372 | Specify the toplevel installation directory for architecture-dependent | |
373 | files. The default is @file{@var{prefix}}. | |
374 | ||
375 | @item --bindir=@var{dirname} | |
376 | Specify the installation directory for the executables called by users | |
377 | (such as @command{gcc} and @command{g++}). The default is | |
378 | @file{@var{exec-prefix}/bin}. | |
379 | ||
380 | @item --libdir=@var{dirname} | |
381 | Specify the installation directory for object code libraries and | |
382 | internal parts of GCC@. The default is @file{@var{exec-prefix}/lib}. | |
383 | ||
384 | @item --with-slibdir=@var{dirname} | |
385 | Specify the installation directory for the shared libgcc library. The | |
386 | default is @file{@var{libdir}}. | |
387 | ||
388 | @item --infodir=@var{dirname} | |
389 | Specify the installation directory for documentation in info format. | |
390 | The default is @file{@var{prefix}/info}. | |
391 | ||
392 | @item --mandir=@var{dirname} | |
393 | Specify the installation directory for manual pages. The default is | |
394 | @file{@var{prefix}/man}. (Note that the manual pages are only extracts from | |
395 | the full GCC manuals, which are provided in Texinfo format. The | |
396 | @command{g77} manpage is unmaintained and may be out of date; the others | |
397 | are derived by an automatic conversion process from parts of the full | |
398 | manual.) | |
399 | ||
400 | @item --with-gxx-include-dir=@var{dirname} | |
401 | Specify | |
402 | the installation directory for G++ header files. The default is | |
403 | @file{@var{prefix}/include/g++-v3}. | |
404 | ||
405 | @end table | |
406 | ||
407 | @item --program-prefix=@var{prefix} | |
408 | GCC supports some transformations of the names of its programs when | |
409 | installing them. This option prepends @var{prefix} to the names of | |
410 | programs to install in @var{bindir} (see above). For example, specifying | |
411 | @option{--program-prefix=foo-} would result in @samp{gcc} | |
412 | being installed as @file{/usr/local/bin/foo-gcc}. | |
413 | ||
414 | @item --program-suffix=@var{suffix} | |
415 | Appends @var{suffix} to the names of programs to install in @var{bindir} | |
416 | (see above). For example, specifying @option{--program-suffix=-3.1} | |
417 | would result in @samp{gcc} being installed as | |
418 | @file{/usr/local/bin/gcc-3.1}. | |
419 | ||
420 | @item --program-transform-name=@var{pattern} | |
421 | Applies the @samp{sed} script @var{pattern} to be applied to the names | |
422 | of programs to install in @var{bindir} (see above). @var{pattern} has to | |
423 | consist of one or more basic @samp{sed} editing commands, separated by | |
424 | semicolons. For example, if you want the @samp{gcc} program name to be | |
425 | transformed to the installed program @file{/usr/local/bin/myowngcc} and | |
426 | the @samp{g++} program name to be transformed to | |
427 | @file{/usr/local/bin/gspecial++} without changing other program names, | |
428 | you could use the pattern | |
429 | @option{--program-transform-name='s/^gcc$/myowngcc/; s/^g++$/gspecial++/'} | |
430 | to achieve this effect. | |
431 | ||
432 | All three options can be combined and used together, resulting in more | |
433 | complex conversion patterns. As a basic rule, @var{prefix} (and | |
434 | @var{suffix}) are prepended (appended) before further transformations | |
435 | can happen with a special transformation script @var{pattern}. | |
436 | ||
437 | As currently implemented, this options only take effect for native | |
438 | builds; cross compiler binaries' names are not transformed even when a | |
439 | transformation is explicitly asked for by one of this options. | |
440 | ||
441 | For native builds, some of the installed programs are also installed | |
442 | with the target alias in front of their name, as in | |
443 | @samp{i686-pc-linux-gnu-gcc}. All of the above transformations happen | |
444 | before the target alias is prepended to the name - so, specifying | |
445 | @option{--program-prefix=foo-} and @option{program-suffix=-3.1}, the | |
446 | resulting binary would be installed as | |
447 | @file{/usr/local/bin/i686-pc-linux-gnu-foo-gcc-3.1}. | |
448 | ||
449 | As a last shortcoming, none of the installed Ada programs are | |
450 | transformed yet, which will be fixed in some time. | |
451 | ||
452 | @item --with-local-prefix=@var{dirname} | |
453 | Specify the | |
454 | installation directory for local include files. The default is | |
455 | @file{/usr/local}. Specify this option if you want the compiler to | |
456 | search directory @file{@var{dirname}/include} for locally installed | |
457 | header files @emph{instead} of @file{/usr/local/include}. | |
458 | ||
459 | You should specify @option{--with-local-prefix} @strong{only} if your | |
460 | site has a different convention (not @file{/usr/local}) for where to put | |
461 | site-specific files. | |
462 | ||
463 | The default value for @option{--with-local-prefix} is @file{/usr/local} | |
464 | regardless of the value of @option{--prefix}. Specifying | |
465 | @option{--prefix} has no effect on which directory GCC searches for | |
466 | local header files. This may seem counterintuitive, but actually it is | |
467 | logical. | |
468 | ||
469 | The purpose of @option{--prefix} is to specify where to @emph{install | |
470 | GCC}. The local header files in @file{/usr/local/include}---if you put | |
471 | any in that directory---are not part of GCC@. They are part of other | |
472 | programs---perhaps many others. (GCC installs its own header files in | |
473 | another directory which is based on the @option{--prefix} value.) | |
474 | ||
475 | @strong{Do not} specify @file{/usr} as the @option{--with-local-prefix}! | |
476 | The directory you use for @option{--with-local-prefix} @strong{must not} | |
477 | contain any of the system's standard header files. If it did contain | |
478 | them, certain programs would be miscompiled (including GNU Emacs, on | |
479 | certain targets), because this would override and nullify the header | |
480 | file corrections made by the @code{fixincludes} script. | |
481 | ||
482 | Indications are that people who use this option use it based on mistaken | |
483 | ideas of what it is for. People use it as if it specified where to | |
484 | install part of GCC@. Perhaps they make this assumption because | |
485 | installing GCC creates the directory. | |
486 | ||
487 | @item --enable-shared[=@var{package}[,@dots{}]] | |
488 | Build shared versions of libraries, if shared libraries are supported on | |
489 | the target platform. Unlike GCC 2.95.x and earlier, shared libraries | |
490 | are enabled by default on all platforms that support shared libraries, | |
491 | except for @samp{libobjc} which is built as a static library only by | |
492 | default. | |
493 | ||
494 | If a list of packages is given as an argument, build shared libraries | |
495 | only for the listed packages. For other packages, only static libraries | |
496 | will be built. Package names currently recognized in the GCC tree are | |
497 | @samp{libgcc} (also known as @samp{gcc}), @samp{libstdc++} (not | |
498 | @samp{libstdc++-v3}), @samp{libffi}, @samp{zlib}, @samp{boehm-gc} and | |
499 | @samp{libjava}. Note that @samp{libobjc} does not recognize itself by | |
500 | any name, so, if you list package names in @option{--enable-shared}, | |
501 | you will only get static Objective-C libraries. @samp{libf2c} and | |
502 | @samp{libiberty} do not support shared libraries at all. | |
503 | ||
504 | Use @option{--disable-shared} to build only static libraries. Note that | |
505 | @option{--disable-shared} does not accept a list of package names as | |
506 | argument, only @option{--enable-shared} does. | |
507 | ||
508 | @item @anchor{with-gnu-as}--with-gnu-as | |
509 | Specify that the compiler should assume that the | |
510 | assembler it finds is the GNU assembler. However, this does not modify | |
511 | the rules to find an assembler and will result in confusion if found | |
512 | assembler is not actually the GNU assembler. (Confusion will also | |
513 | result if the compiler finds the GNU assembler but has not been | |
514 | configured with @option{--with-gnu-as}.) If you have more than one | |
515 | assembler installed on your system, you may want to use this option in | |
516 | connection with @option{--with-as=@var{pathname}}. | |
517 | ||
518 | The systems where it makes a difference whether you use the GNU assembler are | |
519 | @samp{hppa1.0-@var{any}-@var{any}}, @samp{hppa1.1-@var{any}-@var{any}}, | |
520 | @samp{i386-@var{any}-sysv}, @samp{i386-@var{any}-isc}, | |
521 | @samp{i860-@var{any}-bsd}, @samp{m68k-bull-sysv}, | |
522 | @samp{m68k-hp-hpux}, @samp{m68k-sony-bsd}, | |
523 | @samp{m68k-altos-sysv}, @samp{m68000-hp-hpux}, | |
524 | @samp{m68000-att-sysv}, @samp{@var{any}-lynx-lynxos}, | |
525 | and @samp{mips-@var{any}}. | |
526 | On any other system, @option{--with-gnu-as} has no effect. | |
527 | ||
528 | On the systems listed above (except for the HP-PA, for ISC on the | |
529 | 386, and for @samp{mips-sgi-irix5.*}), if you use the GNU assembler, | |
530 | you should also use the GNU linker (and specify @option{--with-gnu-ld}). | |
531 | ||
532 | @item --with-as=@var{pathname} | |
533 | Specify that the | |
534 | compiler should use the assembler pointed to by @var{pathname}, rather | |
535 | than the one found by the standard rules to find an assembler, which | |
536 | are: | |
537 | @itemize @bullet | |
538 | @item | |
539 | Check the | |
540 | @file{@var{exec_prefix}/lib/gcc-lib/@var{target}/@var{version}} | |
541 | directory, where @var{exec_prefix} defaults to @var{prefix} which | |
542 | defaults to @file{/usr/local} unless overridden by the | |
543 | @option{--prefix=@var{pathname}} switch described above. @var{target} is the | |
544 | target system triple, such as @samp{sparc-sun-solaris2.7}, and | |
545 | @var{version} denotes the GCC version, such as 3.0. | |
546 | @item | |
547 | Check operating system specific directories (e.g.@: @file{/usr/ccs/bin} on | |
548 | Sun Solaris 2). | |
549 | @end itemize | |
550 | Note that these rules do not check for the value of @env{PATH}. You may | |
551 | want to use @option{--with-as} if no assembler is installed in the | |
552 | directories listed above, or if you have multiple assemblers installed | |
553 | and want to choose one that is not found by the above rules. | |
554 | ||
555 | @item @anchor{with-gnu-ld}--with-gnu-ld | |
556 | Same as @uref{#with-gnu-as,,@option{--with-gnu-as}} | |
557 | but for linker. | |
558 | ||
559 | ||
560 | @item --with-ld=@var{pathname} | |
561 | Same as | |
562 | @option{--with-as}, but for the linker. | |
563 | ||
564 | @item --with-stabs | |
565 | Specify that stabs debugging | |
566 | information should be used instead of whatever format the host normally | |
567 | uses. Normally GCC uses the same debug format as the host system. | |
568 | ||
569 | On MIPS based systems and on Alphas, you must specify whether you want | |
570 | GCC to create the normal ECOFF debugging format, or to use BSD-style | |
571 | stabs passed through the ECOFF symbol table. The normal ECOFF debug | |
572 | format cannot fully handle languages other than C@. BSD stabs format can | |
573 | handle other languages, but it only works with the GNU debugger GDB@. | |
574 | ||
575 | Normally, GCC uses the ECOFF debugging format by default; if you | |
576 | prefer BSD stabs, specify @option{--with-stabs} when you configure GCC@. | |
577 | ||
578 | No matter which default you choose when you configure GCC, the user | |
579 | can use the @option{-gcoff} and @option{-gstabs+} options to specify explicitly | |
580 | the debug format for a particular compilation. | |
581 | ||
582 | @option{--with-stabs} is meaningful on the ISC system on the 386, also, if | |
583 | @option{--with-gas} is used. It selects use of stabs debugging | |
584 | information embedded in COFF output. This kind of debugging information | |
585 | supports C++ well; ordinary COFF debugging information does not. | |
586 | ||
587 | @option{--with-stabs} is also meaningful on 386 systems running SVR4. It | |
588 | selects use of stabs debugging information embedded in ELF output. The | |
589 | C++ compiler currently (2.6.0) does not support the DWARF debugging | |
590 | information normally used on 386 SVR4 platforms; stabs provide a | |
591 | workable alternative. This requires gas and gdb, as the normal SVR4 | |
592 | tools can not generate or interpret stabs. | |
593 | ||
594 | @item --disable-multilib | |
595 | Specify that multiple target | |
596 | libraries to support different target variants, calling | |
597 | conventions, etc should not be built. The default is to build a | |
598 | predefined set of them. | |
599 | ||
600 | Some targets provide finer-grained control over which multilibs are built | |
601 | (e.g., @option{--disable-softfloat}): | |
602 | @table @code | |
603 | ||
604 | @item arc-*-elf* | |
605 | biendian. | |
606 | ||
607 | @item arm-*-* | |
608 | fpu, 26bit, underscore, interwork, biendian, nofmult. | |
609 | ||
610 | @item m68*-*-* | |
611 | softfloat, m68881, m68000, m68020. | |
612 | ||
613 | @item mips*-*-* | |
614 | single-float, biendian, softfloat. | |
615 | ||
616 | @item powerpc*-*-*, rs6000*-*-* | |
617 | aix64, pthread, softfloat, powercpu, powerpccpu, powerpcos, biendian, | |
618 | sysv, aix. | |
619 | ||
620 | @end table | |
621 | ||
622 | @item --enable-threads | |
623 | Specify that the target | |
624 | supports threads. This affects the Objective-C compiler and runtime | |
625 | library, and exception handling for other languages like C++ and Java. | |
626 | On some systems, this is the default. | |
627 | ||
628 | In general, the best (and, in many cases, the only known) threading | |
629 | model available will be configured for use. Beware that on some | |
630 | systems, gcc has not been taught what threading models are generally | |
631 | available for the system. In this case, @option{--enable-threads} is an | |
632 | alias for @option{--enable-threads=single}. | |
633 | ||
634 | @item --disable-threads | |
635 | Specify that threading support should be disabled for the system. | |
636 | This is an alias for @option{--enable-threads=single}. | |
637 | ||
638 | @item --enable-threads=@var{lib} | |
639 | Specify that | |
640 | @var{lib} is the thread support library. This affects the Objective-C | |
641 | compiler and runtime library, and exception handling for other languages | |
642 | like C++ and Java. The possibilities for @var{lib} are: | |
643 | ||
644 | @table @code | |
645 | @item aix | |
646 | AIX thread support. | |
647 | @item dce | |
648 | DCE thread support. | |
649 | @item mach | |
650 | Generic MACH thread support, known to work on NeXTSTEP@. (Please note | |
651 | that the file needed to support this configuration, @file{gthr-mach.h}, is | |
652 | missing and thus this setting will cause a known bootstrap failure.) | |
653 | @item no | |
654 | This is an alias for @samp{single}. | |
655 | @item posix | |
656 | Generic POSIX thread support. | |
657 | @item pthreads | |
658 | Same as @samp{posix} on arm*-*-linux*, *-*-chorusos* and *-*-freebsd* | |
659 | only. A future release of gcc might remove this alias or extend it | |
660 | to all platforms. | |
661 | @item rtems | |
662 | RTEMS thread support. | |
663 | @item single | |
664 | Disable thread support, should work for all platforms. | |
665 | @item solaris | |
666 | Sun Solaris 2 thread support. | |
667 | @item vxworks | |
668 | VxWorks thread support. | |
669 | @item win32 | |
670 | Microsoft Win32 API thread support. | |
671 | @end table | |
672 | ||
673 | @item --with-cpu=@var{cpu} | |
674 | Specify which cpu variant the | |
675 | compiler should generate code for by default. This is currently | |
676 | only supported on the some ports, specifically arm, powerpc, and | |
677 | SPARC@. If configure does not recognize the model name (e.g.@: arm700, | |
678 | 603e, or ultrasparc) you provide, please check the configure script | |
679 | for a complete list of supported models. | |
680 | ||
681 | @item --enable-altivec | |
682 | Specify that the target supports AltiVec vector enhancements. This | |
683 | option will adjust the ABI for AltiVec enhancements, as well as generate | |
684 | AltiVec code when appropriate. This option is only available for | |
685 | PowerPC systems. | |
686 | ||
687 | @item --enable-target-optspace | |
688 | Specify that target | |
689 | libraries should be optimized for code space instead of code speed. | |
690 | This is the default for the m32r platform. | |
691 | ||
692 | @item --disable-cpp | |
693 | Specify that a user visible @command{cpp} program should not be installed. | |
694 | ||
695 | @item --with-cpp-install-dir=@var{dirname} | |
696 | Specify that the user visible @command{cpp} program should be installed | |
697 | in @file{@var{prefix}/@var{dirname}/cpp}, in addition to @var{bindir}. | |
698 | ||
699 | @item --enable-maintainer-mode | |
700 | The build rules that | |
701 | regenerate the GCC master message catalog @file{gcc.pot} are normally | |
702 | disabled. This is because it can only be rebuilt if the complete source | |
703 | tree is present. If you have changed the sources and want to rebuild the | |
704 | catalog, configuring with @option{--enable-maintainer-mode} will enable | |
705 | this. Note that you need a recent version of the @code{gettext} tools | |
706 | to do so. | |
707 | ||
708 | @item --enable-version-specific-runtime-libs | |
709 | Specify | |
710 | that runtime libraries should be installed in the compiler specific | |
711 | subdirectory (@file{@var{libsubdir}}) rather than the usual places. In | |
712 | addition, @samp{libstdc++}'s include files will be installed in | |
713 | @file{@var{libsubdir}/include/g++} unless you overruled it by using | |
714 | @option{--with-gxx-include-dir=@var{dirname}}. Using this option is | |
715 | particularly useful if you intend to use several versions of GCC in | |
716 | parallel. This is currently supported by @samp{libf2c} and | |
717 | @samp{libstdc++}, and is the default for @samp{libobjc} which cannot be | |
718 | changed in this case. | |
719 | ||
720 | @item --enable-languages=@var{lang1},@var{lang2},@dots{} | |
721 | Specify that only a particular subset of compilers and | |
722 | their runtime libraries should be built. For a list of valid values for | |
723 | @var{langN} you can issue the following command in the | |
724 | @file{gcc} directory of your GCC source tree:@* | |
725 | @example | |
726 | grep language= */config-lang.in | |
727 | @end example | |
728 | Currently, you can use any of the following: | |
729 | @code{ada}, @code{c}, @code{c++}, @code{f77}, @code{java}, @code{objc}. | |
730 | Building the Ada compiler has special requirements, see below.@* | |
731 | If you do not pass this flag, all languages available in the @file{gcc} | |
732 | sub-tree will be configured. Re-defining @code{LANGUAGES} when calling | |
733 | @samp{make bootstrap} @strong{does not} work anymore, as those | |
734 | language sub-directories might not have been configured! | |
735 | ||
736 | @item --disable-libgcj | |
737 | Specify that the run-time libraries | |
738 | used by GCJ should not be built. This is useful in case you intend | |
739 | to use GCJ with some other run-time, or you're going to install it | |
740 | separately, or it just happens not to build on your particular | |
741 | machine. In general, if the Java front end is enabled, the GCJ | |
742 | libraries will be enabled too, unless they're known to not work on | |
743 | the target platform. If GCJ is enabled but @samp{libgcj} isn't built, you | |
744 | may need to port it; in this case, before modifying the top-level | |
745 | @file{configure.in} so that @samp{libgcj} is enabled by default on this platform, | |
746 | you may use @option{--enable-libgcj} to override the default. | |
747 | ||
748 | @item --with-dwarf2 | |
749 | Specify that the compiler should | |
750 | use DWARF 2 debugging information as the default. | |
751 | ||
752 | @item --enable-win32-registry | |
753 | @itemx --enable-win32-registry=@var{key} | |
754 | @itemx --disable-win32-registry | |
755 | The @option{--enable-win32-registry} option enables Windows-hosted GCC | |
756 | to look up installations paths in the registry using the following key: | |
757 | ||
758 | @smallexample | |
759 | @code{HKEY_LOCAL_MACHINE\SOFTWARE\Free Software Foundation\@var{key}} | |
760 | @end smallexample | |
761 | ||
762 | @var{key} defaults to GCC version number, and can be overridden by the | |
763 | @option{--enable-win32-registry=@var{key}} option. Vendors and distributors | |
764 | who use custom installers are encouraged to provide a different key, | |
765 | perhaps one comprised of vendor name and GCC version number, to | |
766 | avoid conflict with existing installations. This feature is enabled | |
767 | by default, and can be disabled by @option{--disable-win32-registry} | |
768 | option. This option has no effect on the other hosts. | |
769 | ||
770 | @item --nfp | |
771 | Specify that the machine does not have a floating point unit. This | |
772 | option only applies to @samp{m68k-sun-sunos@var{n}} and | |
773 | @samp{m68k-isi-bsd}. On any other system, @option{--nfp} has no effect. | |
774 | ||
775 | @item --enable-checking | |
776 | @itemx --enable-checking=@var{list} | |
777 | When you specify this option, the compiler is built to perform checking | |
778 | of tree node types when referencing fields of that node, and some other | |
779 | internal consistency checks. This does not change the generated code, | |
780 | but adds error checking within the compiler. This will slow down the | |
781 | compiler and may only work properly if you are building the compiler | |
782 | with GCC@. This is on by default when building from CVS or snapshots, | |
783 | but off for releases. More control over the checks may be had by | |
784 | specifying @var{list}; the categories of checks available are | |
785 | @samp{misc}, @samp{tree}, @samp{gc}, @samp{rtl} and @samp{gcac}. The | |
786 | default when @var{list} is not specified is @samp{misc,tree,gc}; the | |
787 | checks @samp{rtl} and @samp{gcac} are very expensive. | |
788 | ||
789 | @item --enable-nls | |
790 | @itemx --disable-nls | |
791 | The @option{--enable-nls} option enables Native Language Support (NLS), | |
792 | which lets GCC output diagnostics in languages other than American | |
793 | English. Native Language Support is enabled by default if not doing a | |
794 | canadian cross build. The @option{--disable-nls} option disables NLS@. | |
795 | ||
796 | @item --with-included-gettext | |
797 | If NLS is enabled, the @option{--with-included-gettext} option causes the build | |
798 | procedure to prefer its copy of GNU @command{gettext}. | |
799 | ||
800 | @item --with-catgets | |
801 | If NLS is enabled, and if the host lacks @code{gettext} but has the | |
802 | inferior @code{catgets} interface, the GCC build procedure normally | |
803 | ignores @code{catgets} and instead uses GCC's copy of the GNU | |
804 | @code{gettext} library. The @option{--with-catgets} option causes the | |
805 | build procedure to use the host's @code{catgets} in this situation. | |
806 | ||
807 | @item --with-libiconv-prefix=@var{dir} | |
808 | Search for libiconv header files in @file{@var{dir}/include} and | |
809 | libiconv library files in @file{@var{dir}/lib}. | |
810 | ||
811 | @item --with-system-zlib | |
812 | Use installed zlib rather than that included with GCC@. This option | |
813 | only applies if the Java front end is being built. | |
814 | ||
815 | @item --enable-obsolete | |
816 | Enable configuration for an obsoleted system. If you attempt to | |
817 | configure GCC for a system (build, host, or target) which has been | |
818 | obsoleted, and you do not specify this flag, configure will halt with an | |
819 | error message. | |
820 | ||
821 | All support for systems which have been obsoleted in one release of GCC | |
822 | is removed entirely in the next major release, unless someone steps | |
823 | forward to maintain the port. | |
824 | @end table | |
825 | ||
826 | Some options which only apply to building cross compilers: | |
827 | @table @code | |
828 | @item --with-headers=@var{dir} | |
829 | Specifies a directory | |
830 | which has target include files. | |
831 | @emph{This options is required} when building a cross | |
832 | compiler, if @file{@var{prefix}/@var{target}/sys-include} doesn't pre-exist. | |
833 | These include files will be copied into the @file{gcc} install directory. | |
834 | Fixincludes will be run on these files to make them compatible with | |
835 | GCC. | |
836 | @item --with-libs=``@var{dir1} @var{dir2} @dots{} @var{dirN}'' | |
837 | Specifies a list of directories which contain the target runtime | |
838 | libraries. These libraries will be copied into the @file{gcc} install | |
839 | directory. | |
840 | @item --with-newlib | |
841 | Specifies that @samp{newlib} is | |
842 | being used as the target C library. This causes @code{__eprintf} to be | |
843 | omitted from @file{libgcc.a} on the assumption that it will be provided by | |
844 | @samp{newlib}. | |
845 | @end table | |
846 | ||
847 | Note that each @option{--enable} option has a corresponding | |
848 | @option{--disable} option and that each @option{--with} option has a | |
849 | corresponding @option{--without} option. | |
850 | ||
851 | @html | |
852 | <hr> | |
853 | <p> | |
854 | @end html | |
855 | @ifhtml | |
856 | @uref{./index.html,,Return to the GCC Installation page} | |
857 | @end ifhtml | |
858 | @end ifset | |
859 | ||
860 | @c ***Building**************************************************************** | |
861 | @ifnothtml | |
862 | @comment node-name, next, previous, up | |
863 | @node Building, Testing, Configuration, Installing GCC | |
864 | @end ifnothtml | |
865 | @ifset buildhtml | |
866 | @html | |
867 | <h1 align="center">Installing GCC: Building</h1> | |
868 | @end html | |
869 | @ifnothtml | |
870 | @chapter Building | |
871 | @end ifnothtml | |
872 | @cindex Installing GCC: Building | |
873 | ||
874 | Now that GCC is configured, you are ready to build the compiler and | |
875 | runtime libraries. | |
876 | ||
877 | We @strong{highly} recommend that GCC be built using GNU make; | |
878 | other versions may work, then again they might not. | |
879 | GNU make is required for compiling GNAT (the Ada compiler) and the Java | |
880 | runtime library. | |
881 | ||
882 | (For example, many broken versions of make will fail if you use the | |
883 | recommended setup where @var{objdir} is different from @var{srcdir}. | |
884 | Other broken versions may recompile parts of the compiler when | |
885 | installing the compiler.) | |
886 | ||
887 | Some commands executed when making the compiler may fail (return a | |
888 | nonzero status) and be ignored by @code{make}. These failures, which | |
889 | are often due to files that were not found, are expected, and can safely | |
890 | be ignored. | |
891 | ||
892 | It is normal to have compiler warnings when compiling certain files. | |
893 | Unless you are a GCC developer, you can generally ignore these warnings | |
894 | unless they cause compilation to fail. | |
895 | ||
896 | On certain old systems, defining certain environment variables such as | |
897 | @env{CC} can interfere with the functioning of @command{make}. | |
898 | ||
899 | If you encounter seemingly strange errors when trying to build the | |
900 | compiler in a directory other than the source directory, it could be | |
901 | because you have previously configured the compiler in the source | |
902 | directory. Make sure you have done all the necessary preparations. | |
903 | ||
904 | If you build GCC on a BSD system using a directory stored in an old System | |
905 | V file system, problems may occur in running @code{fixincludes} if the | |
906 | System V file system doesn't support symbolic links. These problems | |
907 | result in a failure to fix the declaration of @code{size_t} in | |
908 | @file{sys/types.h}. If you find that @code{size_t} is a signed type and | |
909 | that type mismatches occur, this could be the cause. | |
910 | ||
911 | The solution is not to use such a directory for building GCC@. | |
912 | ||
913 | When building from CVS or snapshots, or if you modify parser sources, | |
914 | you need the Bison parser generator installed. Any version 1.25 or | |
915 | later should work; older versions may also work. If you do not modify | |
916 | parser sources, releases contain the Bison-generated files and you do | |
917 | not need Bison installed to build them. | |
918 | ||
919 | When building from CVS or snapshots, or if you modify Texinfo | |
920 | documentation, you need version 4.1 or later of Texinfo installed if you | |
921 | want Info documentation to be regenerated. Releases contain Info | |
922 | documentation pre-built for the unmodified documentation in the release. | |
923 | ||
924 | @section Building a native compiler | |
925 | ||
926 | For a native build issue the command @samp{make bootstrap}. This | |
927 | will build the entire GCC system, which includes the following steps: | |
928 | ||
929 | @itemize @bullet | |
930 | @item | |
931 | Build host tools necessary to build the compiler such as texinfo, bison, | |
932 | gperf. | |
933 | ||
934 | @item | |
935 | Build target tools for use by the compiler such as binutils (bfd, | |
936 | binutils, gas, gprof, ld, and opcodes) | |
937 | if they have been individually linked | |
938 | or moved into the top level GCC source tree before configuring. | |
939 | ||
940 | @item | |
941 | Perform a 3-stage bootstrap of the compiler. | |
942 | ||
943 | @item | |
944 | Perform a comparison test of the stage2 and stage3 compilers. | |
945 | ||
946 | @item | |
947 | Build runtime libraries using the stage3 compiler from the previous step. | |
948 | ||
949 | @end itemize | |
950 | ||
951 | If you are short on disk space you might consider @samp{make | |
952 | bootstrap-lean} instead. This is identical to @samp{make | |
953 | bootstrap} except that object files from the stage1 and | |
954 | stage2 of the 3-stage bootstrap of the compiler are deleted as | |
955 | soon as they are no longer needed. | |
956 | ||
957 | ||
958 | If you want to save additional space during the bootstrap and in | |
959 | the final installation as well, you can build the compiler binaries | |
960 | without debugging information with @samp{make CFLAGS='-O' LIBCFLAGS='-g | |
961 | -O2' LIBCXXFLAGS='-g -O2 -fno-implicit-templates' bootstrap}. This will save | |
962 | roughly 40% of disk space both for the bootstrap and the final installation. | |
963 | (Libraries will still contain debugging information.) | |
964 | ||
965 | If you wish to use non-default GCC flags when compiling the stage2 and | |
966 | stage3 compilers, set @code{BOOT_CFLAGS} on the command line when doing | |
967 | @samp{make bootstrap}. Non-default optimization flags are less well | |
968 | tested here than the default of @samp{-g -O2}, but should still work. | |
969 | In a few cases, you may find that you need to specify special flags such | |
970 | as @option{-msoft-float} here to complete the bootstrap; or, if the | |
971 | native compiler miscompiles the stage1 compiler, you may need to work | |
972 | around this, by choosing @code{BOOT_CFLAGS} to avoid the parts of the | |
973 | stage1 compiler that were miscompiled, or by using @samp{make | |
974 | bootstrap4} to increase the number of stages of bootstrap. | |
975 | ||
976 | If you used the flag @option{--enable-languages=@dots{}} to restrict | |
977 | the compilers to be built, only those you've actually enabled will be | |
978 | built. This will of course only build those runtime libraries, for | |
979 | which the particular compiler has been built. Please note, | |
980 | that re-defining @env{LANGUAGES} when calling @samp{make bootstrap} | |
981 | @strong{does not} work anymore! | |
982 | ||
983 | If the comparison of stage2 and stage3 fails, this normally indicates | |
984 | that the stage2 compiler has compiled GCC incorrectly, and is therefore | |
985 | a potentially serious bug which you should investigate and report. (On | |
986 | a few systems, meaningful comparison of object files is impossible; they | |
987 | always appear ``different''. If you encounter this problem, you will | |
988 | need to disable comparison in the @file{Makefile}.) | |
989 | ||
990 | @section Building a cross compiler | |
991 | ||
992 | We recommend reading the | |
993 | @uref{http://www.objsw.com/CrossGCC/,,crossgcc FAQ} | |
994 | for information about building cross compilers. | |
995 | ||
996 | When building a cross compiler, it is not generally possible to do a | |
997 | 3-stage bootstrap of the compiler. This makes for an interesting problem | |
998 | as parts of GCC can only be built with GCC@. | |
999 | ||
1000 | To build a cross compiler, we first recommend building and installing a | |
1001 | native compiler. You can then use the native GCC compiler to build the | |
1002 | cross compiler. The installed native compiler needs to be GCC version | |
1003 | 2.95 or later. | |
1004 | ||
1005 | Assuming you have already installed a native copy of GCC and configured | |
1006 | your cross compiler, issue the command @command{make}, which performs the | |
1007 | following steps: | |
1008 | ||
1009 | @itemize @bullet | |
1010 | @item | |
1011 | Build host tools necessary to build the compiler such as texinfo, bison, | |
1012 | gperf. | |
1013 | ||
1014 | @item | |
1015 | Build target tools for use by the compiler such as binutils (bfd, | |
1016 | binutils, gas, gprof, ld, and opcodes) | |
1017 | if they have been individually linked or moved into the top level GCC source | |
1018 | tree before configuring. | |
1019 | ||
1020 | @item | |
1021 | Build the compiler (single stage only). | |
1022 | ||
1023 | @item | |
1024 | Build runtime libraries using the compiler from the previous step. | |
1025 | @end itemize | |
1026 | ||
1027 | Note that if an error occurs in any step the make process will exit. | |
1028 | ||
1029 | @section Building in parallel | |
1030 | ||
1031 | If you have a multiprocessor system you can use @samp{make bootstrap | |
1032 | MAKE="make -j 2" -j 2} or just @samp{make -j 2 bootstrap} | |
1033 | for GNU Make 3.79 and above instead of just @samp{make bootstrap} | |
1034 | when building GCC@. You can use a bigger number instead of two if | |
1035 | you like. In most cases, it won't help to use a number bigger than | |
1036 | the number of processors in your machine. | |
1037 | ||
1038 | @section Building the Ada compiler | |
1039 | ||
1040 | In order to build GNAT, the Ada compiler, you need a working GNAT | |
1041 | compiler (GNAT version 3.13 or later, or GCC version 3.1 or later), | |
1042 | since the Ada front end is written in Ada (with some | |
1043 | GNAT-specific extensions), and GNU make. | |
1044 | ||
1045 | However, you do not need a full installation of GNAT, just the GNAT | |
1046 | binary @file{gnat1}, a copy of @file{gnatbind}, and a compiler driver | |
1047 | which can deal with Ada input (by invoking the @file{gnat1} binary). | |
1048 | You can specify this compiler driver by setting the @env{ADAC} | |
1049 | environment variable at the configure step. @command{configure} can | |
1050 | detect the driver automatically if it has got a common name such as | |
1051 | @command{gcc} or @command{gnatgcc}. Of course, you still need a working | |
1052 | C compiler (the compiler driver can be different or not). | |
1053 | @command{configure} does not test whether the GNAT installation works | |
1054 | and has a sufficiently recent version; if too old a GNAT version is | |
1055 | installed, the build will fail unless @option{--enable-languages} is | |
1056 | used to disable building the Ada front end. | |
1057 | ||
1058 | Additional build tools (such as @command{gnatmake}) or a working GNAT | |
1059 | run-time library installation are usually @emph{not} required. However, | |
1060 | if you want to boostrap the compiler using a minimal version of GNAT, | |
1061 | you have to issue the following commands before invoking @samp{make | |
1062 | boostrap} (this assumes that you start with an unmodified and consistent | |
1063 | source distribution): | |
1064 | ||
1065 | @example | |
1066 | cd @var{srcdir}/gcc/ada | |
1067 | touch treeprs.ads [es]info.h nmake.ad[bs] | |
1068 | @end example | |
1069 | ||
1070 | At the moment, the GNAT library and several tools for GNAT are not built | |
1071 | by @samp{make bootstrap}. You have to invoke | |
1072 | @samp{make gnatlib_and_tools} in the @file{@var{objdir}/gcc} | |
1073 | subdirectory before proceeding with the next steps. | |
1074 | ||
1075 | For example, you can build a native Ada compiler by issuing the | |
1076 | following commands (assuming @command{make} is GNU make): | |
1077 | ||
1078 | @example | |
1079 | cd @var{objdir} | |
1080 | @var{srcdir}/configure --enable-languages=c,ada | |
1081 | cd @var{srcdir}/gcc/ada | |
1082 | touch treeprs.ads [es]info.h nmake.ad[bs] | |
1083 | cd @var{objdir} | |
1084 | make bootstrap | |
1085 | cd gcc | |
1086 | make gnatlib_and_tools | |
1087 | cd .. | |
1088 | @end example | |
1089 | ||
1090 | Currently, when compiling the Ada front end, you cannot use the parallel | |
1091 | build feature described in the previous section. | |
1092 | ||
1093 | @html | |
1094 | <hr> | |
1095 | <p> | |
1096 | @end html | |
1097 | @ifhtml | |
1098 | @uref{./index.html,,Return to the GCC Installation page} | |
1099 | @end ifhtml | |
1100 | @end ifset | |
1101 | ||
1102 | @c ***Testing***************************************************************** | |
1103 | @ifnothtml | |
1104 | @comment node-name, next, previous, up | |
1105 | @node Testing, Final install, Building, Installing GCC | |
1106 | @end ifnothtml | |
1107 | @ifset testhtml | |
1108 | @html | |
1109 | <h1 align="center">Installing GCC: Testing</h1> | |
1110 | @end html | |
1111 | @ifnothtml | |
1112 | @chapter Installing GCC: Testing | |
1113 | @end ifnothtml | |
1114 | @cindex Testing | |
1115 | @cindex Installing GCC: Testing | |
1116 | @cindex Testsuite | |
1117 | ||
1118 | Before you install GCC, we encourage you to run the testsuites and to | |
1119 | compare your results with results from a similar configuration that have | |
1120 | been submitted to the | |
1121 | @uref{http://gcc.gnu.org/ml/gcc-testresults/,,gcc-testresults mailing list}. | |
1122 | This step is optional and may require you to download additional software, | |
1123 | but it can give you confidence in your new GCC installation or point out | |
1124 | problems before you install and start using your new GCC. | |
1125 | ||
1126 | First, you must have @uref{download.html,,downloaded the testsuites}. | |
1127 | These are part of the full distribution, but if you downloaded the | |
1128 | ``core'' compiler plus any front ends, you must download the testsuites | |
1129 | separately. | |
1130 | ||
1131 | Second, you must have the testing tools installed. This includes | |
1132 | a @uref{http://www.gnu.org/software/dejagnu/,,current version of DejaGnu}; | |
1133 | dejagnu 1.3 is not sufficient. | |
1134 | It also includes Tcl and Expect; the DejaGnu site has links to these. | |
1135 | ||
1136 | Now you may need specific preparations: | |
1137 | ||
1138 | @itemize @bullet | |
1139 | ||
1140 | @item | |
1141 | The following environment variables may need to be set appropriately, as in | |
1142 | the following example (which assumes that DejaGnu has been installed | |
1143 | under @file{/usr/local}): | |
1144 | ||
1145 | @example | |
1146 | TCL_LIBRARY = /usr/local/share/tcl8.0 | |
1147 | DEJAGNULIBS = /usr/local/share/dejagnu | |
1148 | @end example | |
1149 | ||
1150 | On systems such as Cygwin, these paths are required to be actual | |
1151 | paths, not mounts or links; presumably this is due to some lack of | |
1152 | portability in the DejaGnu code. | |
1153 | ||
1154 | If the directories where @command{runtest} and @command{expect} were | |
1155 | installed are in the @env{PATH}, it should not be necessary to set these | |
1156 | environment variables. | |
1157 | ||
1158 | @end itemize | |
1159 | ||
1160 | Finally, you can run the testsuite (which may take a long time): | |
1161 | @example | |
1162 | cd @var{objdir}; make -k check | |
1163 | @end example | |
1164 | ||
1165 | The testing process will try to test as many components in the GCC | |
1166 | distribution as possible, including the C, C++, Objective-C and Fortran | |
1167 | compilers as well as the C++ and Java runtime libraries. | |
1168 | ||
1169 | @section How can I run the test suite on selected tests? | |
1170 | ||
1171 | As a first possibility to cut down the number of tests that are run it is | |
1172 | possible to use @samp{make check-gcc} or @samp{make check-g++} | |
1173 | in the @file{gcc} subdirectory of the object directory. To further cut down the | |
1174 | tests the following is possible: | |
1175 | ||
1176 | @example | |
1177 | make check-gcc RUNTESTFLAGS="execute.exp @var{other-options}" | |
1178 | @end example | |
1179 | ||
1180 | This will run all @command{gcc} execute tests in the testsuite. | |
1181 | ||
1182 | @example | |
1183 | make check-g++ RUNTESTFLAGS="old-deja.exp=9805* @var{other-options}" | |
1184 | @end example | |
1185 | ||
1186 | This will run the @command{g++} ``old-deja'' tests in the testsuite where the filename | |
1187 | matches @samp{9805*}. | |
1188 | ||
1189 | The @file{*.exp} files are located in the testsuite directories of the GCC | |
1190 | source, the most important ones being @file{compile.exp}, | |
1191 | @file{execute.exp}, @file{dg.exp} and @file{old-deja.exp}. | |
1192 | To get a list of the possible @file{*.exp} files, pipe the | |
1193 | output of @samp{make check} into a file and look at the | |
1194 | @samp{Running @dots{} .exp} lines. | |
1195 | ||
1196 | @section How to interpret test results | |
1197 | ||
1198 | After the testsuite has run you'll find various @file{*.sum} and @file{*.log} | |
1199 | files in the testsuite subdirectories. The @file{*.log} files contain a | |
1200 | detailed log of the compiler invocations and the corresponding | |
1201 | results, the @file{*.sum} files summarize the results. These summaries list | |
1202 | all the tests that have been run with a corresponding status code: | |
1203 | ||
1204 | @itemize @bullet | |
1205 | @item | |
1206 | PASS: the test passed as expected | |
1207 | @item | |
1208 | XPASS: the test unexpectedly passed | |
1209 | @item | |
1210 | FAIL: the test unexpectedly failed | |
1211 | @item | |
1212 | XFAIL: the test failed as expected | |
1213 | @item | |
1214 | UNSUPPORTED: the test is not supported on this platform | |
1215 | @item | |
1216 | ERROR: the testsuite detected an error | |
1217 | @item | |
1218 | WARNING: the testsuite detected a possible problem | |
1219 | @end itemize | |
1220 | ||
1221 | It is normal for some tests to report unexpected failures. At the | |
1222 | current time our testing harness does not allow fine grained control | |
1223 | over whether or not a test is expected to fail. We expect to fix this | |
1224 | problem in future releases. | |
1225 | ||
1226 | ||
1227 | @section Submitting test results | |
1228 | ||
1229 | If you want to report the results to the GCC project, use the | |
1230 | @file{contrib/test_summary} shell script. Start it in the @var{objdir} with | |
1231 | ||
1232 | @example | |
1233 | @var{srcdir}/contrib/test_summary -p your_commentary.txt \ | |
1234 | -m gcc-testresults@@gcc.gnu.org |sh | |
1235 | @end example | |
1236 | ||
1237 | This script uses the @command{Mail} program to send the results, so | |
1238 | make sure it is in your @env{PATH}. The file @file{your_commentary.txt} is | |
1239 | prepended to the testsuite summary and should contain any special | |
1240 | remarks you have on your results or your build environment. Please | |
1241 | do not edit the testsuite result block or the subject line, as these | |
1242 | messages are automatically parsed and presented at the | |
1243 | @uref{http://gcc.gnu.org/testresults/,,GCC testresults} web | |
1244 | page. Here you can also gather information on how specific tests | |
1245 | behave on different platforms and compare them with your results. A | |
1246 | few failing testcases are possible even on released versions and you | |
1247 | should look here first if you think your results are unreasonable. | |
1248 | ||
1249 | @html | |
1250 | <hr> | |
1251 | <p> | |
1252 | @end html | |
1253 | @ifhtml | |
1254 | @uref{./index.html,,Return to the GCC Installation page} | |
1255 | @end ifhtml | |
1256 | @end ifset | |
1257 | ||
1258 | @c ***Final install*********************************************************** | |
1259 | @ifnothtml | |
1260 | @comment node-name, next, previous, up | |
1261 | @node Final install, , Testing, Installing GCC | |
1262 | @end ifnothtml | |
1263 | @ifset finalinstallhtml | |
1264 | @html | |
1265 | <h1 align="center">Installing GCC: Final installation</h1> | |
1266 | @end html | |
1267 | @ifnothtml | |
1268 | @chapter Installing GCC: Final installation | |
1269 | @end ifnothtml | |
1270 | ||
1271 | Now that GCC has been built (and optionally tested), you can install it with | |
1272 | @example | |
1273 | cd @var{objdir}; make install | |
1274 | @end example | |
1275 | ||
1276 | That step completes the installation of GCC; user level binaries can | |
1277 | be found in @file{@var{prefix}/bin} where @var{prefix} is the value you | |
1278 | specified with the @option{--prefix} to configure (or @file{/usr/local} | |
1279 | by default). (If you specified @option{--bindir}, that directory will | |
1280 | be used instead; otherwise, if you specified @option{--exec-prefix}, | |
1281 | @file{@var{exec-prefix}/bin} will be used.) Headers for the C++ and | |
1282 | Java libraries are installed in @file{@var{prefix}/include}; libraries | |
1283 | in @file{@var{libdir}} (normally @file{@var{prefix}/lib}); internal | |
1284 | parts of the compiler in @file{@var{libdir}/gcc-lib}; documentation in | |
1285 | info format in @file{@var{infodir}} (normally @file{@var{prefix}/info}). | |
1286 | ||
1287 | If you built a released version of GCC using @samp{make bootstrap} then please | |
1288 | quickly review the build status page for | |
1289 | @uref{http://gcc.gnu.org/gcc-3.1/buildstat.html,,3.1}, | |
1290 | @uref{http://gcc.gnu.org/gcc-3.0/buildstat.html,,3.0}, or | |
1291 | @uref{http://gcc.gnu.org/gcc-2.95/buildstat.html,,2.95}. | |
1292 | If your system is not listed for the version of GCC that you built, | |
1293 | send a note to | |
1294 | @email{gcc@@gcc.gnu.org} indicating | |
1295 | that you successfully built and installed GCC. | |
1296 | Include the following information: | |
1297 | ||
1298 | @itemize @bullet | |
1299 | @item | |
1300 | Output from running @file{@var{srcdir}/config.guess}. Do not send us | |
1301 | that file itself, just the one-line output from running it. | |
1302 | ||
1303 | @item | |
1304 | The output of @samp{gcc -v} for your newly installed gcc. | |
1305 | This tells us which version of GCC you built and the options you passed to | |
1306 | configure. | |
1307 | ||
1308 | @item | |
1309 | Whether you enabled all languages or a subset of them. If you used a | |
1310 | full distribution then this information is part of the configure | |
1311 | options in the output of @samp{gcc -v}, but if you downloaded the | |
1312 | ``core'' compiler plus additional front ends then it isn't apparent | |
1313 | which ones you built unless you tell us about it. | |
1314 | ||
1315 | @item | |
1316 | If the build was for GNU/Linux, also include: | |
1317 | @itemize @bullet | |
1318 | @item | |
1319 | The distribution name and version (e.g., Red Hat 7.1 or Debian 2.2.3); | |
1320 | this information should be available from @file{/etc/issue}. | |
1321 | ||
1322 | @item | |
1323 | The version of the Linux kernel, available from @samp{uname --version} | |
1324 | or @samp{uname -a}. | |
1325 | ||
1326 | @item | |
1327 | The version of glibc you used; for RPM-based systems like Red Hat, | |
1328 | Mandrake, and SuSE type @samp{rpm -q glibc} to get the glibc version, | |
1329 | and on systems like Debian and Progeny use @samp{dpkg -l libc6}. | |
1330 | @end itemize | |
1331 | For other systems, you can include similar information if you think it is | |
1332 | relevant. | |
1333 | ||
1334 | @item | |
1335 | Any other information that you think would be useful to people building | |
1336 | GCC on the same configuration. The new entry in the build status list | |
1337 | will include a link to the archived copy of your message. | |
1338 | @end itemize | |
1339 | ||
1340 | We'd also like to know if the | |
1341 | @ifnothtml | |
1342 | @ref{Specific, host/target specific installation notes} | |
1343 | @end ifnothtml | |
1344 | @ifhtml | |
1345 | @uref{specific.html,,host/target specific installation notes} | |
1346 | @end ifhtml | |
1347 | didn't include your host/target information or if that information is | |
1348 | incomplete or out of date. Send a note to | |
1349 | @email{gcc@@gcc.gnu.org} telling us how the information should be changed. | |
1350 | ||
1351 | If you find a bug, please report it following our | |
1352 | @uref{../bugs.html,,bug reporting guidelines}. | |
1353 | ||
1354 | If you want to print the GCC manuals, do @samp{cd @var{objdir}; make | |
1355 | dvi}. You will need to have @command{texi2dvi} (version at least 4.1) | |
1356 | and @TeX{} installed. This creates a number of @file{.dvi} files in | |
1357 | subdirectories of @file{@var{objdir}}; these may be converted for | |
1358 | printing with programs such as @command{dvips}. You can also | |
1359 | @uref{http://www.gnu.org/order/order.html,,buy printed manuals from the | |
1360 | Free Software Foundation}, though such manuals may not be for the most | |
1361 | recent version of GCC@. | |
1362 | ||
1363 | @html | |
1364 | <hr> | |
1365 | <p> | |
1366 | @end html | |
1367 | @ifhtml | |
1368 | @uref{./index.html,,Return to the GCC Installation page} | |
1369 | @end ifhtml | |
1370 | @end ifset | |
1371 | ||
1372 | @c ***Binaries**************************************************************** | |
1373 | @ifnothtml | |
1374 | @comment node-name, next, previous, up | |
1375 | @node Binaries, Specific, Installing GCC, Top | |
1376 | @end ifnothtml | |
1377 | @ifset binarieshtml | |
1378 | @html | |
1379 | <h1 align="center">Installing GCC: Binaries</h1> | |
1380 | @end html | |
1381 | @ifnothtml | |
1382 | @chapter Installing GCC: Binaries | |
1383 | @end ifnothtml | |
1384 | @cindex Binaries | |
1385 | @cindex Installing GCC: Binaries | |
1386 | ||
1387 | We are often asked about pre-compiled versions of GCC@. While we cannot | |
1388 | provide these for all platforms, below you'll find links to binaries for | |
1389 | various platforms where creating them by yourself is not easy due to various | |
1390 | reasons. | |
1391 | ||
1392 | Please note that we did not create these binaries, nor do we | |
1393 | support them. If you have any problems installing them, please | |
1394 | contact their makers. | |
1395 | ||
1396 | @itemize | |
1397 | @item | |
1398 | AIX: | |
1399 | @itemize | |
1400 | @item | |
1401 | @uref{http://freeware.bull.net,,Bull's Freeware and Shareware Archive for AIX}; | |
1402 | ||
1403 | @item | |
1404 | @uref{http://aixpdslib.seas.ucla.edu,,UCLA Software Library for AIX}; | |
1405 | @end itemize | |
1406 | ||
1407 | @item | |
1408 | DOS---@uref{http://www.delorie.com/djgpp/,,DJGPP}; | |
1409 | ||
1410 | @item | |
1411 | HP-UX: | |
1412 | @itemize | |
1413 | @item | |
1414 | @uref{http://hpux.cae.wisc.edu/,,HP-UX Porting Center}; | |
1415 | ||
1416 | @item | |
1417 | @uref{ftp://sunsite.informatik.rwth-aachen.de/pub/packages/gcc_hpux/,,Binaries for HP-UX 11.00 at Aachen University of Technology}. | |
1418 | @end itemize | |
1419 | ||
1420 | @item | |
1421 | @uref{http://www.sco.com/skunkware/devtools/index.html#gcc,,SCO | |
1422 | OpenServer/Unixware}; | |
1423 | ||
1424 | @item | |
1425 | Solaris 2 (SPARC, Intel)---@uref{http://www.sunfreeware.com/,,Sunfreeware}; | |
1426 | ||
1427 | @item | |
1428 | SGI---@uref{http://freeware.sgi.com/,,SGI Freeware}; | |
1429 | ||
1430 | @item | |
1431 | Windows 95, 98, and NT: | |
1432 | @itemize | |
1433 | @item | |
1434 | The @uref{http://sources.redhat.com/cygwin/,,Cygwin} project; | |
1435 | @item | |
1436 | @uref{http://www.xraylith.wisc.edu/~khan/software/gnu-win32/,,GNU Win32} | |
1437 | related projects by Mumit Khan. | |
1438 | @end itemize | |
1439 | ||
1440 | @item | |
1441 | @uref{ftp://ftp.thewrittenword.com/packages/free/by-name/,,The | |
1442 | Written Word} offers binaries for Solaris 2.5.1, 2.6, 2.7/SPARC, 2.7/Intel, | |
1443 | IRIX 6.2, 6.5, Digital UNIX 4.0D, HP-UX 10.20, and HP-UX 11.00. | |
1444 | ||
1445 | @item | |
1446 | Hitachi H8/300[HS]---@uref{http://h8300-hms.sourceforge.net/,,GNU | |
1447 | Development Tools for the Hitachi H8/300[HS] Series} | |
1448 | ||
1449 | @end itemize | |
1450 | ||
1451 | In addition to those specific offerings, you can get a binary | |
1452 | distribution CD-ROM from the | |
1453 | @uref{http://www.fsf.org/order/order.html,,Free Software Foundation}. | |
1454 | It contains binaries for a number of platforms, and | |
1455 | includes not only GCC, but other stuff as well. The current CD does | |
1456 | not contain the latest version of GCC, but it should allow | |
1457 | bootstrapping the compiler. An updated version of that disk is in the | |
1458 | works. | |
1459 | ||
1460 | @html | |
1461 | <hr> | |
1462 | <p> | |
1463 | @end html | |
1464 | @ifhtml | |
1465 | @uref{./index.html,,Return to the GCC Installation page} | |
1466 | @end ifhtml | |
1467 | @end ifset | |
1468 | ||
1469 | @c ***Specific**************************************************************** | |
1470 | @ifnothtml | |
1471 | @comment node-name, next, previous, up | |
1472 | @node Specific, Old, Binaries, Top | |
1473 | @end ifnothtml | |
1474 | @ifset specifichtml | |
1475 | @html | |
1476 | <h1 align="center">Host/target specific installation notes for GCC</h1> | |
1477 | @end html | |
1478 | @ifnothtml | |
1479 | @chapter Host/target specific installation notes for GCC | |
1480 | @end ifnothtml | |
1481 | @cindex Specific | |
1482 | @cindex Specific installation notes | |
1483 | @cindex Target specific installation | |
1484 | @cindex Host specific installation | |
1485 | @cindex Target specific installation notes | |
1486 | ||
1487 | Please read this document carefully @emph{before} installing the | |
1488 | GNU Compiler Collection on your machine. | |
1489 | ||
1490 | @ifhtml | |
1491 | @itemize | |
1492 | @item | |
1493 | @uref{#1750a-*-*,,1750a-*-*} | |
1494 | @item | |
1495 | @uref{#a29k,,a29k} | |
1496 | @item | |
1497 | @uref{#a29k-*-bsd,,a29k-*-bsd} | |
1498 | @item | |
1499 | @uref{#alpha*-*-*,,alpha*-*-*} | |
1500 | @item | |
1501 | @uref{#alpha*-dec-osf*,,alpha*-dec-osf*} | |
1502 | @item | |
1503 | @uref{#alphaev5-cray-unicosmk*,,alphaev5-cray-unicosmk*} | |
1504 | @item | |
1505 | @uref{#arc-*-elf,,arc-*-elf} | |
1506 | @item | |
1507 | @uref{#arm-*-aout,,arm-*-aout} | |
1508 | @item | |
1509 | @uref{#arm-*-elf,,arm-*-elf} | |
1510 | @item | |
1511 | @uref{#arm*-*-linux-gnu,,arm*-*-linux-gnu} | |
1512 | @item | |
1513 | @uref{#arm-*-riscix,,arm-*-riscix} | |
1514 | @item | |
1515 | @uref{#avr,,avr} | |
1516 | @item | |
1517 | @uref{#c4x,,c4x} | |
1518 | @item | |
1519 | @uref{#dos,,DOS} | |
1520 | @item | |
1521 | @uref{#dsp16xx,,dsp16xx} | |
1522 | @item | |
1523 | @uref{#elxsi-elxsi-bsd,,elxsi-elxsi-bsd} | |
1524 | @item | |
1525 | @uref{#*-*-freebsd*,,*-*-freebsd*} | |
1526 | @item | |
1527 | @uref{#h8300-hms,,h8300-hms} | |
1528 | @item | |
1529 | @uref{#hppa*-hp-hpux*,,hppa*-hp-hpux*} | |
1530 | @item | |
1531 | @uref{#hppa*-hp-hpux9,,hppa*-hp-hpux9} | |
1532 | @item | |
1533 | @uref{#hppa*-hp-hpux10,,hppa*-hp-hpux10} | |
1534 | @item | |
1535 | @uref{#hppa*-hp-hpux11,,hppa*-hp-hpux11} | |
1536 | @item | |
1537 | @uref{#i370-*-*,,i370-*-*} | |
1538 | @item | |
1539 | @uref{#*-*-linux-gnu,,*-*-linux-gnu} | |
1540 | @item | |
1541 | @uref{#ix86-*-linux*oldld,,i?86-*-linux*oldld} | |
1542 | @item | |
1543 | @uref{#ix86-*-linux*aout,,i?86-*-linux*aout} | |
1544 | @item | |
1545 | @uref{#ix86-*-linux*,,i?86-*-linux*} | |
1546 | @item | |
1547 | @uref{#ix86-*-sco,,i?86-*-sco} | |
1548 | @item | |
1549 | @uref{#ix86-*-sco3.2v4,,i?86-*-sco3.2v4} | |
1550 | @item | |
1551 | @uref{#ix86-*-sco3.2v5*,,i?86-*-sco3.2v5*} | |
1552 | @item | |
1553 | @uref{#ix86-*-udk,,i?86-*-udk} | |
1554 | @item | |
1555 | @uref{#ix86-*-isc,,i?86-*-isc} | |
1556 | @item | |
1557 | @uref{#ix86-*-esix,,i?86-*-esix} | |
1558 | @item | |
1559 | @uref{#ix86-ibm-aix,,i?86-ibm-aix} | |
1560 | @item | |
1561 | @uref{#ix86-sequent-bsd,,i?86-sequent-bsd} | |
1562 | @item | |
1563 | @uref{#ix86-sequent-ptx1*,,i?86-sequent-ptx1*, i?86-sequent-ptx2*, i?86-sequent-sysv3*} | |
1564 | @item | |
1565 | @uref{#i860-intel-osf*,,i860-intel-osf*} | |
1566 | @item | |
1567 | @uref{#ia64-*-linux,,ia64-*-linux} | |
1568 | @item | |
1569 | @uref{#*-lynx-lynxos,,*-lynx-lynxos} | |
1570 | @item | |
1571 | @uref{#*-ibm-aix*,,*-ibm-aix*} | |
1572 | @item | |
1573 | @uref{#m32r-*-elf,,m32r-*-elf} | |
1574 | @item | |
1575 | @uref{#m68000-hp-bsd,,m68000-hp-bsd} | |
1576 | @item | |
1577 | @uref{#m6811-elf,,m6811-elf} | |
1578 | @item | |
1579 | @uref{#m6812-elf,,m6812-elf} | |
1580 | @item | |
1581 | @uref{#m68k-altos,,m68k-altos} | |
1582 | @item | |
1583 | @uref{#m68k-apple-aux,,m68k-apple-aux} | |
1584 | @item | |
1585 | @uref{#m68k-att-sysv,,m68k-att-sysv} | |
1586 | @item | |
1587 | @uref{#m68k-bull-sysv,,m68k-bull-sysv} | |
1588 | @item | |
1589 | @uref{#m68k-crds-unos,,m68k-crds-unos} | |
1590 | @item | |
1591 | @uref{#m68k-hp-hpux,,m68k-hp-hpux} | |
1592 | @item | |
1593 | @uref{#m68k-*-nextstep*,,m68k-*-nextstep*} | |
1594 | @item | |
1595 | @uref{#m68k-ncr-*,,m68k-ncr-*} | |
1596 | @item | |
1597 | @uref{#m68k-sun,,m68k-sun} | |
1598 | @item | |
1599 | @uref{#m68k-sun-sunos4.1.1,,m68k-sun-sunos4.1.1} | |
1600 | @item | |
1601 | @uref{#m88k-*-svr3,,m88k-*-svr3} | |
1602 | @item | |
1603 | @uref{#m88k-*-dgux,,m88k-*-dgux} | |
1604 | @item | |
1605 | @uref{#m88k-tektronix-sysv3,,m88k-tektronix-sysv3} | |
1606 | @item | |
1607 | @uref{#mips-*-*,,mips-*-*} | |
1608 | @item | |
1609 | @uref{#mips-dec-*,,mips-dec-*} | |
1610 | @item | |
1611 | @uref{#mips-mips-bsd,,mips-mips-bsd} | |
1612 | @item | |
1613 | @uref{#mips-mips-riscos*,,mips-mips-riscos*} | |
1614 | @item | |
1615 | @uref{#mips-sgi-irix4,,mips-sgi-irix4} | |
1616 | @item | |
1617 | @uref{#mips-sgi-irix5,,mips-sgi-irix5} | |
1618 | @item | |
1619 | @uref{#mips-sgi-irix6,,mips-sgi-irix6} | |
1620 | @item | |
1621 | @uref{#mips-sony-sysv,,mips-sony-sysv} | |
1622 | @item | |
1623 | @uref{#ns32k-encore,,ns32k-encore} | |
1624 | @item | |
1625 | @uref{#ns32k-*-genix,,ns32k-*-genix} | |
1626 | @item | |
1627 | @uref{#ns32k-sequent,,ns32k-sequent} | |
1628 | @item | |
1629 | @uref{#ns32k-utek,,ns32k-utek} | |
1630 | @item | |
1631 | @uref{#powerpc*-*-*,,powerpc*-*-*, powerpc-*-sysv4} | |
1632 | @item | |
1633 | @uref{#powerpc-*-darwin*,,powerpc-*-darwin*} | |
1634 | @item | |
1635 | @uref{#powerpc-*-elf,,powerpc-*-elf, powerpc-*-sysv4} | |
1636 | @item | |
1637 | @uref{#powerpc-*-linux-gnu*,,powerpc-*-linux-gnu*} | |
1638 | @item | |
1639 | @uref{#powerpc-*-netbsd*,,powerpc-*-netbsd*} | |
1640 | @item | |
1641 | @uref{#powerpc-*-eabiaix,,powerpc-*-eabiaix} | |
1642 | @item | |
1643 | @uref{#powerpc-*-eabisim,,powerpc-*-eabisim} | |
1644 | @item | |
1645 | @uref{#powerpc-*-eabi,,powerpc-*-eabi} | |
1646 | @item | |
1647 | @uref{#powerpcle-*-elf,,powerpcle-*-elf, powerpcle-*-sysv4} | |
1648 | @item | |
1649 | @uref{#powerpcle-*-eabisim,,powerpcle-*-eabisim} | |
1650 | @item | |
1651 | @uref{#powerpcle-*-eabi,,powerpcle-*-eabi} | |
1652 | @item | |
1653 | @uref{#powerpcle-*-winnt,,powerpcle-*-winnt, powerpcle-*-pe} | |
1654 | @item | |
1655 | @uref{#romp-*-aos,,romp-*-aos, romp-*-mach} | |
1656 | @item | |
1657 | @uref{#s390-*-linux*} | |
1658 | @item | |
1659 | @uref{#s390x-*-linux*} | |
1660 | @item | |
1661 | @uref{#*-*-solaris2*,,*-*-solaris2*} | |
1662 | @item | |
1663 | @uref{#sparc-sun-solaris2*,,sparc-sun-solaris2*} | |
1664 | @item | |
1665 | @uref{#sparc-sun-solaris2.7,,sparc-sun-solaris2.7} | |
1666 | @item | |
1667 | @uref{#sparc-sun-sunos4*,,sparc-sun-sunos4*} | |
1668 | @item | |
1669 | @uref{#sparc-unknown-linux-gnulibc1,,sparc-unknown-linux-gnulibc1} | |
1670 | @item | |
1671 | @uref{#sparc-*-linux*,,sparc-*-linux*} | |
1672 | @item | |
1673 | @uref{#sparc64-*-*,,sparc64-*-*} | |
1674 | @item | |
1675 | @uref{#sparcv9-*-solaris2*,,sparcv9-*-solaris2*} | |
1676 | @item | |
1677 | @uref{#*-*-sysv*,,*-*-sysv*} | |
1678 | @item | |
1679 | @uref{#vax-dec-ultrix,,vax-dec-ultrix} | |
1680 | @item | |
1681 | @uref{#we32k-*-*,,we32k-*-*} | |
1682 | @item | |
1683 | @uref{#xtensa-*-elf,,xtensa-*-elf} | |
1684 | @item | |
1685 | @uref{#xtensa-*-linux*,,xtensa-*-linux*} | |
1686 | @item | |
1687 | @uref{#windows,,Microsoft Windows} | |
1688 | @item | |
1689 | @uref{#os2,,OS/2} | |
1690 | @item | |
1691 | @uref{#older,,Older systems} | |
1692 | @end itemize | |
1693 | ||
1694 | @itemize | |
1695 | @item | |
1696 | @uref{#elf_targets,,all ELF targets} (SVR4, Solaris 2, etc.) | |
1697 | @end itemize | |
1698 | @end ifhtml | |
1699 | ||
1700 | ||
1701 | @html | |
1702 | <!-- -------- host/target specific issues start here ---------------- --> | |
1703 | <hr> | |
1704 | @end html | |
1705 | @heading @anchor{1750a-*-*}1750a-*-* | |
1706 | MIL-STD-1750A processors. This target is obsoleted in GCC 3.1. | |
1707 | ||
1708 | The MIL-STD-1750A cross configuration produces output for | |
1709 | @code{as1750}, an assembler/linker available under the GNU General Public | |
1710 | License for the 1750A@. @code{as1750} can be obtained at | |
1711 | @uref{ftp://ftp.fta-berlin.de/pub/crossgcc/1750gals/}. | |
1712 | A similarly licensed simulator for | |
1713 | the 1750A is available from same address. | |
1714 | ||
1715 | You should ignore a fatal error during the building of @samp{libgcc} | |
1716 | (@samp{libgcc} is not yet implemented for the 1750A@.) | |
1717 | ||
1718 | The @code{as1750} assembler requires the file @file{ms1750.inc}, which is | |
1719 | found in the directory @file{gcc/config/1750a}. | |
1720 | ||
1721 | GCC produced the same sections as the Fairchild F9450 C Compiler, | |
1722 | namely: | |
1723 | ||
1724 | @table @code | |
1725 | @item Normal | |
1726 | The program code section. | |
1727 | ||
1728 | @item Static | |
1729 | The read/write (RAM) data section. | |
1730 | ||
1731 | @item Konst | |
1732 | The read-only (ROM) constants section. | |
1733 | ||
1734 | @item Init | |
1735 | Initialization section (code to copy KREL to SREL)@. | |
1736 | @end table | |
1737 | ||
1738 | The smallest addressable unit is 16 bits (@code{BITS_PER_UNIT} is 16). This | |
1739 | means that type @code{char} is represented with a 16-bit word per character. | |
1740 | The 1750A's ``Load/Store Upper/Lower Byte'' instructions are not used by | |
1741 | GCC@. | |
1742 | ||
1743 | @html | |
1744 | </p> | |
1745 | <hr> | |
1746 | @end html | |
1747 | @heading @anchor{a29k}a29k | |
1748 | AMD Am29k-family processors. These are normally used in embedded | |
1749 | applications. This configuration corresponds to AMD's standard calling | |
1750 | sequence and binary interface and is compatible with other 29k tools. | |
1751 | ||
1752 | AMD has abandoned this processor. All existing a29k targets are obsoleted | |
1753 | in GCC 3.1. | |
1754 | ||
1755 | You may need to make a variant of the file @file{a29k.h} for your | |
1756 | particular configuration. | |
1757 | ||
1758 | @html | |
1759 | </p> | |
1760 | <hr> | |
1761 | @end html | |
1762 | @heading @anchor{a29k-*-bsd}a29k-*-bsd | |
1763 | AMD Am29050 used in a system running a variant of BSD Unix. | |
1764 | ||
1765 | @html | |
1766 | </p> | |
1767 | <hr> | |
1768 | @end html | |
1769 | @heading @anchor{alpha*-*-*}alpha*-*-* | |
1770 | ||
1771 | This section contains general configuration information for all | |
1772 | alpha-based platforms using ELF (in particular, ignore this section for | |
1773 | DEC OSF/1, Digital UNIX and Tru64 UNIX)@. In addition to reading this | |
1774 | section, please read all other sections that match your target. | |
1775 | ||
1776 | We require binutils 2.11.2 or newer. | |
1777 | Previous binutils releases had a number of problems with DWARF 2 | |
1778 | debugging information, not the least of which is incorrect linking of | |
1779 | shared libraries. | |
1780 | ||
1781 | @html | |
1782 | </p> | |
1783 | <hr> | |
1784 | @end html | |
1785 | @heading @anchor{alpha*-dec-osf*}alpha*-dec-osf* | |
1786 | Systems using processors that implement the DEC Alpha architecture and | |
1787 | are running the DEC/Compaq Unix (DEC OSF/1, Digital UNIX, or Compaq | |
1788 | Tru64 UNIX) operating system, for example the DEC Alpha AXP systems. | |
1789 | ||
1790 | Support for versions before @code{alpha*-dec-osf4} is obsoleted in GCC | |
1791 | 3.1. (These are the versions which identify themselves as DEC OSF/1.) | |
1792 | ||
1793 | In Tru64 UNIX V5.1, Compaq introduced a new assembler that does not | |
1794 | currently (2001-06-13) work with @command{mips-tfile}. As a workaround, | |
1795 | we need to use the old assembler, invoked via the barely documented | |
1796 | @option{-oldas} option. To bootstrap GCC, you either need to use the | |
1797 | Compaq C Compiler: | |
1798 | ||
1799 | @example | |
1800 | % CC=cc @var{srcdir}/configure [@var{options}] [@var{target}] | |
1801 | @end example | |
1802 | ||
1803 | or you can use a copy of GCC 2.95.3 or higher built on Tru64 UNIX V4.0: | |
1804 | ||
1805 | @example | |
1806 | % CC=gcc -Wa,-oldas @var{srcdir}/configure [@var{options}] [@var{target}] | |
1807 | @end example | |
1808 | ||
1809 | As of GNU binutils 2.11.2, neither GNU @command{as} nor GNU @command{ld} | |
1810 | are supported on Tru64 UNIX, so you must not configure GCC with | |
1811 | @option{--with-gnu-as} or @option{--with-gnu-ld}. | |
1812 | ||
1813 | The @option{--enable-threads} options isn't supported yet. A patch is | |
1814 | in preparation for a future release. | |
1815 | ||
1816 | GCC writes a @samp{.verstamp} directive to the assembler output file | |
1817 | unless it is built as a cross-compiler. It gets the version to use from | |
1818 | the system header file @file{/usr/include/stamp.h}. If you install a | |
1819 | new version of DEC Unix, you should rebuild GCC to pick up the new version | |
1820 | stamp. | |
1821 | ||
1822 | Note that since the Alpha is a 64-bit architecture, cross-compilers from | |
1823 | 32-bit machines will not generate code as efficient as that generated | |
1824 | when the compiler is running on a 64-bit machine because many | |
1825 | optimizations that depend on being able to represent a word on the | |
1826 | target in an integral value on the host cannot be performed. Building | |
1827 | cross-compilers on the Alpha for 32-bit machines has only been tested in | |
1828 | a few cases and may not work properly. | |
1829 | ||
1830 | @code{make compare} may fail on old versions of DEC Unix unless you add | |
1831 | @option{-save-temps} to @code{CFLAGS}. On these systems, the name of the | |
1832 | assembler input file is stored in the object file, and that makes | |
1833 | comparison fail if it differs between the @code{stage1} and | |
1834 | @code{stage2} compilations. The option @option{-save-temps} forces a | |
1835 | fixed name to be used for the assembler input file, instead of a | |
1836 | randomly chosen name in @file{/tmp}. Do not add @option{-save-temps} | |
1837 | unless the comparisons fail without that option. If you add | |
1838 | @option{-save-temps}, you will have to manually delete the @samp{.i} and | |
1839 | @samp{.s} files after each series of compilations. | |
1840 | ||
1841 | GCC now supports both the native (ECOFF) debugging format used by DBX | |
1842 | and GDB and an encapsulated STABS format for use only with GDB@. See the | |
1843 | discussion of the @option{--with-stabs} option of @file{configure} above | |
1844 | for more information on these formats and how to select them. | |
1845 | ||
1846 | There is a bug in DEC's assembler that produces incorrect line numbers | |
1847 | for ECOFF format when the @samp{.align} directive is used. To work | |
1848 | around this problem, GCC will not emit such alignment directives | |
1849 | while writing ECOFF format debugging information even if optimization is | |
1850 | being performed. Unfortunately, this has the very undesirable | |
1851 | side-effect that code addresses when @option{-O} is specified are | |
1852 | different depending on whether or not @option{-g} is also specified. | |
1853 | ||
1854 | To avoid this behavior, specify @option{-gstabs+} and use GDB instead of | |
1855 | DBX@. DEC is now aware of this problem with the assembler and hopes to | |
1856 | provide a fix shortly. | |
1857 | ||
1858 | @html | |
1859 | </p> | |
1860 | <hr> | |
1861 | @end html | |
1862 | @heading @anchor{alphaev5-cray-unicosmk*}alphaev5-cray-unicosmk* | |
1863 | Cray T3E systems running Unicos/Mk. | |
1864 | ||
1865 | This port is incomplete and has many known bugs. We hope to improve the | |
1866 | support for this target soon. Currently, only the C front end is supported, | |
1867 | and it is not possible to build parallel applications. Cray modules are not | |
1868 | supported; in particular, Craylibs are assumed to be in | |
1869 | @file{/opt/ctl/craylibs/craylibs}. | |
1870 | ||
1871 | You absolutely @strong{must} use GNU make on this platform. Also, you | |
1872 | need to tell GCC where to find the assembler and the linker. The | |
1873 | simplest way to do so is by providing @option{--with-as} and | |
1874 | @option{--with-ld} to @file{configure}, e.g.@: | |
1875 | ||
1876 | @samp{configure --with-as=/opt/ctl/bin/cam --with-ld=/opt/ctl/bin/cld | |
1877 | --enable-languages=c} | |
1878 | ||
1879 | The comparison test during @samp{make bootstrap} fails on Unicos/Mk | |
1880 | because the assembler inserts timestamps into object files. You should | |
1881 | be able to work around this by doing @samp{make all} after getting this | |
1882 | failure. | |
1883 | ||
1884 | @html | |
1885 | </p> | |
1886 | <hr> | |
1887 | @end html | |
1888 | @heading @anchor{arc-*-elf}arc-*-elf | |
1889 | Argonaut ARC processor. | |
1890 | This configuration is intended for embedded systems. | |
1891 | ||
1892 | @html | |
1893 | </p> | |
1894 | <hr> | |
1895 | @end html | |
1896 | @heading @anchor{arm-*-aout}arm-*-aout | |
1897 | Advanced RISC Machines ARM-family processors. These are often used in | |
1898 | embedded applications. There are no standard Unix configurations. | |
1899 | This configuration corresponds to the basic instruction sequences and will | |
1900 | produce @file{a.out} format object modules. | |
1901 | ||
1902 | You may need to make a variant of the file @file{arm.h} for your particular | |
1903 | configuration. | |
1904 | ||
1905 | @html | |
1906 | </p> | |
1907 | <hr> | |
1908 | @end html | |
1909 | @heading @anchor{arm-*-elf}arm-*-elf | |
1910 | This configuration is intended for embedded systems. | |
1911 | ||
1912 | @html | |
1913 | </p> | |
1914 | <hr> | |
1915 | @end html | |
1916 | @heading @anchor{arm*-*-linux-gnu}arm*-*-linux-gnu | |
1917 | ||
1918 | We require GNU binutils 2.10 or newer. | |
1919 | ||
1920 | @html | |
1921 | </p> | |
1922 | <hr> | |
1923 | @end html | |
1924 | @heading @anchor{arm-*-riscix}arm-*-riscix | |
1925 | The ARM2 or ARM3 processor running RISC iX, Acorn's port of BSD Unix. | |
1926 | This configuration is obsoleted in GCC 3.1. | |
1927 | ||
1928 | If you are running a version of RISC iX prior to 1.2 then you must | |
1929 | specify the version number during configuration. Note that the | |
1930 | assembler shipped with RISC iX does not support stabs debugging | |
1931 | information; a new version of the assembler, with stabs support | |
1932 | included, is now available from Acorn and via ftp | |
1933 | @uref{ftp://ftp.acorn.com/pub/riscix/as+xterm.tar.Z}. To enable stabs | |
1934 | debugging, pass @option{--with-gnu-as} to configure. | |
1935 | ||
1936 | You will need to install GNU @command{sed} before you can run configure. | |
1937 | ||
1938 | @html | |
1939 | </p> | |
1940 | <hr> | |
1941 | @end html | |
1942 | @heading @anchor{avr}avr | |
1943 | ||
1944 | ATMEL AVR-family micro controllers. These are used in embedded | |
1945 | applications. There are no standard Unix configurations. | |
1946 | @ifnothtml | |
1947 | @xref{AVR Options,, AVR Options, gcc, Using and Porting the GNU Compiler | |
1948 | Collection (GCC)}, | |
1949 | @end ifnothtml | |
1950 | @ifhtml | |
1951 | See ``AVR Options'' in the main manual | |
1952 | @end ifhtml | |
1953 | for the list of supported MCU types. | |
1954 | ||
1955 | Use @samp{configure --target=avr --enable-languages="c"} to configure GCC@. | |
1956 | ||
1957 | Further installation notes and other useful information about AVR tools | |
1958 | can also be obtained from: | |
1959 | ||
1960 | @itemize @bullet | |
1961 | @item | |
1962 | @uref{http://home.overta.ru/users/denisc,,http://home.overta.ru/users/denisc} | |
1963 | @item | |
1964 | @uref{http://www.amelek.gda.pl/avr,,http://www.amelek.gda.pl/avr} | |
1965 | @end itemize | |
1966 | ||
1967 | We @emph{strongly} recommend using binutils 2.11 or newer. | |
1968 | ||
1969 | The following error: | |
1970 | @example | |
1971 | Error: register required | |
1972 | @end example | |
1973 | ||
1974 | indicates that you should upgrade to a newer version of the binutils. | |
1975 | ||
1976 | @html | |
1977 | </p> | |
1978 | <hr> | |
1979 | @end html | |
1980 | @heading @anchor{c4x}c4x | |
1981 | ||
1982 | Texas Instruments TMS320C3x and TMS320C4x Floating Point Digital Signal | |
1983 | Processors. These are used in embedded applications. There are no | |
1984 | standard Unix configurations. | |
1985 | @ifnothtml | |
1986 | @xref{TMS320C3x/C4x Options,, TMS320C3x/C4x Options, gcc, Using and | |
1987 | Porting the GNU Compiler Collection (GCC)}, | |
1988 | @end ifnothtml | |
1989 | @ifhtml | |
1990 | See ``TMS320C3x/C4x Options'' in the main manual | |
1991 | @end ifhtml | |
1992 | for the list of supported MCU types. | |
1993 | ||
1994 | GCC can be configured as a cross compiler for both the C3x and C4x | |
1995 | architectures on the same system. Use @samp{configure --target=c4x | |
1996 | --enable-languages="c,c++"} to configure. | |
1997 | ||
1998 | ||
1999 | Further installation notes and other useful information about C4x tools | |
2000 | can also be obtained from: | |
2001 | ||
2002 | @itemize @bullet | |
2003 | @item | |
2004 | @uref{http://www.elec.canterbury.ac.nz/c4x/,,http://www.elec.canterbury.ac.nz/c4x/} | |
2005 | @end itemize | |
2006 | ||
2007 | @html | |
2008 | </p> | |
2009 | <hr> | |
2010 | @end html | |
2011 | @heading @anchor{cris}CRIS | |
2012 | ||
2013 | CRIS is the CPU architecture in Axis Communications ETRAX system-on-a-chip | |
2014 | series. These are used in embedded applications. | |
2015 | ||
2016 | @ifnothtml | |
2017 | @xref{CRIS Options,, CRIS Options, gcc, Using and Porting the GNU Compiler | |
2018 | Collection (GCC)}, | |
2019 | @end ifnothtml | |
2020 | @ifhtml | |
2021 | See ``CRIS Options'' in the main manual | |
2022 | @end ifhtml | |
2023 | for a list of CRIS-specific options. | |
2024 | ||
2025 | There are a few different CRIS targets: | |
2026 | @table @code | |
2027 | @item cris-axis-aout | |
2028 | Old target. Includes a multilib for the @samp{elinux} a.out-based | |
2029 | target. No multilibs for newer architecture variants. | |
2030 | @item cris-axis-elf | |
2031 | Mainly for monolithic embedded systems. Includes a multilib for the | |
2032 | @samp{v10} core used in @samp{ETRAX 100 LX}. | |
2033 | @item cris-axis-linux-gnu | |
2034 | A GNU/Linux port for the CRIS architecture, currently targeting | |
2035 | @samp{ETRAX 100 LX} by default. | |
2036 | @end table | |
2037 | ||
2038 | For @code{cris-axis-aout} and @code{cris-axis-elf} you need binutils 2.11 | |
2039 | or newer. For @code{cris-axis-linux-gnu} you need binutils 2.12 or newer. | |
2040 | ||
2041 | Pre-packaged tools can be obtained from | |
2042 | @uref{ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/}. More | |
2043 | information about this platform is available at | |
2044 | @uref{http://developer.axis.com/}. | |
2045 | ||
2046 | @html | |
2047 | </p> | |
2048 | <hr> | |
2049 | @end html | |
2050 | @heading @anchor{dos}DOS | |
2051 | ||
2052 | Please have a look at our @uref{binaries.html,,binaries page}. | |
2053 | ||
2054 | You cannot install GCC by itself on MSDOS; it will not compile under | |
2055 | any MSDOS compiler except itself. You need to get the complete | |
2056 | compilation package DJGPP, which includes binaries as well as sources, | |
2057 | and includes all the necessary compilation tools and libraries. | |
2058 | ||
2059 | @html | |
2060 | </p> | |
2061 | <hr> | |
2062 | @end html | |
2063 | @heading @anchor{dsp16xx}dsp16xx | |
2064 | A port to the AT&T DSP1610 family of processors. | |
2065 | ||
2066 | @html | |
2067 | </p> | |
2068 | <hr> | |
2069 | @end html | |
2070 | @heading @anchor{*-*-freebsd*}*-*-freebsd* | |
2071 | ||
2072 | The version of binutils installed in @file{/usr/bin} is known to work unless | |
2073 | otherwise specified in any per-architecture notes. However, binutils | |
2074 | 2.12.1 or greater is known to improve overall testsuite results. | |
2075 | ||
2076 | For FreeBSD 1, FreeBSD 2 or any mutant a.out versions of FreeBSD 3: All | |
2077 | configuration support and files as shipped with GCC 2.95 are still in | |
2078 | place. FreeBSD 2.2.7 has been known to bootstrap completely; however, | |
2079 | it is unknown which version of binutils was used (it is assumed that it | |
2080 | was the system copy in @file{/usr/bin}) and C++ EH failures were noted. | |
2081 | ||
2082 | Support for FreeBSD 1 is obsoleted in GCC 3.1. | |
2083 | ||
2084 | For FreeBSD using the ELF file format: DWARF 2 debugging is now the | |
2085 | default for all CPU architectures. It had been the default on | |
2086 | FreeBSD/alpha since its inception. You may use @option{-gstabs} instead | |
2087 | of @option{-g}, if you really want the old debugging format. There are | |
2088 | no known issues with mixing object files and libraries with different | |
2089 | debugging formats. Otherwise, this release of GCC should now match more | |
2090 | of the configuration used in the stock FreeBSD configuration of GCC. In | |
2091 | particular, @option{--enable-threads} is now configured by default. | |
2092 | However, as a general user, do not attempt to replace the system | |
2093 | compiler with this release. Known to bootstrap and check with good | |
2094 | results on FreeBSD 3.0, 3.4, 4.0, 4.2, 4.3, 4.4, 4.5-STABLE and 5-CURRENT@. | |
2095 | ||
2096 | In principle, @option{--enable-threads} is now compatible with | |
2097 | @option{--enable-libgcj} on FreeBSD@. However, it has only been built | |
2098 | and tested on i386-*-freebsd4.5 and alpha-*-freebsd5.0. The static | |
2099 | library may be incorrectly built (symbols are missing at link time). | |
2100 | There is a rare timing-based startup hang (probably involves an | |
2101 | assupmtion about the thread library). Multi-threaded boehm-gc (required for | |
2102 | libjava) exposes severe threaded signal-handling bugs on FreeBSD before | |
2103 | 4.5-RELEASE. The alpha port may not fully bootstrap without some manual | |
2104 | intervention: gcjh will crash with a floating-point exception while | |
2105 | generating @file{java/lang/Double.h} (just copy the version built on | |
2106 | i386-*-freebsd* and rerun the top-level gmake with no arguments and it | |
2107 | should properly complete the bootstrap). Other CPU architectures | |
2108 | supported by FreeBSD will require additional configuration tuning in, at | |
2109 | the very least, both boehm-gc and libffi. | |
2110 | ||
2111 | Shared @file{libgcc_s.so} is now built and installed by default. | |
2112 | ||
2113 | @html | |
2114 | </p> | |
2115 | <hr> | |
2116 | @end html | |
2117 | @heading @anchor{elxsi-elxsi-bsd}elxsi-elxsi-bsd | |
2118 | The Elxsi's C compiler has known limitations that prevent it from | |
2119 | compiling GCC@. Please contact @email{mrs@@wrs.com} for more details. | |
2120 | ||
2121 | Support for this processor is obsoleted in GCC 3.1. | |
2122 | ||
2123 | @html | |
2124 | </p> | |
2125 | <hr> | |
2126 | @end html | |
2127 | @heading @anchor{h8300-hms}h8300-hms | |
2128 | Hitachi H8/300 series of processors. | |
2129 | ||
2130 | Please have a look at our @uref{binaries.html,,binaries page}. | |
2131 | ||
2132 | The calling convention and structure layout has changed in release 2.6. | |
2133 | All code must be recompiled. The calling convention now passes the | |
2134 | first three arguments in function calls in registers. Structures are no | |
2135 | longer a multiple of 2 bytes. | |
2136 | ||
2137 | @html | |
2138 | </p> | |
2139 | <hr> | |
2140 | @end html | |
2141 | @heading @anchor{hppa*-hp-hpux*}hppa*-hp-hpux* | |
2142 | ||
2143 | We @emph{highly} recommend using gas/binutils 2.8 or newer on all hppa | |
2144 | platforms; you may encounter a variety of problems when using the HP | |
2145 | assembler. | |
2146 | ||
2147 | Specifically, @option{-g} does not work on HP-UX (since that system | |
2148 | uses a peculiar debugging format which GCC does not know about), unless you | |
2149 | use GAS and GDB and configure GCC with the | |
2150 | @uref{./configure.html#with-gnu-as,,@option{--with-gnu-as}} and | |
2151 | @option{--with-as=@dots{}} options. | |
2152 | ||
2153 | If you wish to use pa-risc 2.0 architecture support, you must use either | |
2154 | the HP assembler, gas/binutils 2.11 or a recent | |
2155 | @uref{ftp://sources.redhat.com/pub/binutils/snapshots,,snapshot of gas}. | |
2156 | ||
2157 | More specific information to @samp{hppa*-hp-hpux*} targets follows. | |
2158 | ||
2159 | @html | |
2160 | </p> | |
2161 | <hr> | |
2162 | @end html | |
2163 | @heading @anchor{hppa*-hp-hpux9}hppa*-hp-hpux9 | |
2164 | ||
2165 | The HP assembler has major problems on this platform. We've tried to work | |
2166 | around the worst of the problems. However, those workarounds may be causing | |
2167 | linker crashes in some circumstances; the workarounds also probably prevent | |
2168 | shared libraries from working. Use the GNU assembler to avoid these problems. | |
2169 | ||
2170 | ||
2171 | The configuration scripts for GCC will also trigger a bug in the hpux9 | |
2172 | shell. To avoid this problem set @env{CONFIG_SHELL} to @file{/bin/ksh} | |
2173 | and @env{SHELL} to @file{/bin/ksh} in your environment. | |
2174 | ||
2175 | ||
2176 | @html | |
2177 | </p> | |
2178 | <hr> | |
2179 | @end html | |
2180 | @heading @anchor{hppa*-hp-hpux10}hppa*-hp-hpux10 | |
2181 | ||
2182 | For hpux10.20, we @emph{highly} recommend you pick up the latest sed patch | |
2183 | @code{PHCO_19798} from HP@. HP has two sites which provide patches free of | |
2184 | charge: | |
2185 | ||
2186 | @itemize @bullet | |
2187 | @item | |
2188 | @html | |
2189 | <a href="http://us-support.external.hp.com">US, Canada, Asia-Pacific, and | |
2190 | Latin-America</a> | |
2191 | @end html | |
2192 | @ifnothtml | |
2193 | @uref{http://us-support.external.hp.com,,}US, Canada, Asia-Pacific, and | |
2194 | Latin-America | |
2195 | @end ifnothtml | |
2196 | @item | |
2197 | @uref{http://europe-support.external.hp.com,,Europe} | |
2198 | @end itemize | |
2199 | ||
2200 | The HP assembler on these systems is much better than the hpux9 assembler, | |
2201 | but still has some problems. Most notably the assembler inserts timestamps | |
2202 | into each object file it creates, causing the 3-stage comparison test to fail | |
2203 | during a @samp{make bootstrap}. You should be able to continue by | |
2204 | saying @samp{make all} after getting the failure from @samp{make | |
2205 | bootstrap}. | |
2206 | ||
2207 | ||
2208 | @html | |
2209 | </p> | |
2210 | <hr> | |
2211 | @end html | |
2212 | @heading @anchor{hppa*-hp-hpux11}hppa*-hp-hpux11 | |
2213 | ||
2214 | GCC 3.0 and up support HP-UX 11. You must use GNU binutils 2.11 or above on | |
2215 | this platform. Thread support is not currently implemented for this | |
2216 | platform, so @option{--enable-threads} does not work. | |
2217 | See @uref{http://gcc.gnu.org/ml/gcc-prs/2002-01/msg00551.html} | |
2218 | and @uref{http://gcc.gnu.org/ml/gcc-bugs/2002-01/msg00663.html}. | |
2219 | GCC 2.95.x is not supported under HP-UX 11 and cannot be used to | |
2220 | compile GCC 3.0 and up. Refer to @uref{binaries.html,,binaries} for | |
2221 | information about obtaining precompiled GCC binaries for HP-UX. | |
2222 | ||
2223 | @html | |
2224 | </p> | |
2225 | <hr> | |
2226 | @end html | |
2227 | @heading @anchor{i370-*-*}i370-*-* | |
2228 | This port is very preliminary and has many known bugs. We hope to | |
2229 | have a higher-quality port for this machine soon. | |
2230 | ||
2231 | @html | |
2232 | </p> | |
2233 | <hr> | |
2234 | @end html | |
2235 | @heading @anchor{*-*-linux-gnu}*-*-linux-gnu | |
2236 | ||
2237 | If you use glibc 2.2 (or 2.1.9x), GCC 2.95.2 won't install | |
2238 | out-of-the-box. You'll get compile errors while building @samp{libstdc++}. | |
2239 | The patch @uref{glibc-2.2.patch,,glibc-2.2.patch}, that is to be | |
2240 | applied in the GCC source tree, fixes the compatibility problems. | |
2241 | ||
2242 | @html | |
2243 | </p> | |
2244 | @end html | |
2245 | ||
2246 | @html | |
2247 | <p> | |
2248 | @end html | |
2249 | ||
2250 | Currently Glibc 2.2.3 (and older releases) and GCC 3.0 are out of sync | |
2251 | since the latest exception handling changes for GCC@. Compiling glibc | |
2252 | with GCC 3.0 will give a binary incompatible glibc and therefore cause | |
2253 | lots of problems and might make your system completly unusable. This | |
2254 | will definitly need fixes in glibc but might also need fixes in GCC@. We | |
2255 | strongly advise to wait for glibc 2.2.4 and to read the release notes of | |
2256 | glibc 2.2.4 whether patches for GCC 3.0 are needed. You can use glibc | |
2257 | 2.2.3 with GCC 3.0, just do not try to recompile it. | |
2258 | ||
2259 | @html | |
2260 | </p> | |
2261 | <hr> | |
2262 | @end html | |
2263 | @heading @anchor{ix86-*-linux*oldld}i?86-*-linux*oldld | |
2264 | Use this configuration to generate @file{a.out} binaries on Linux-based | |
2265 | GNU systems if you do not have gas/binutils version 2.5.2 or later | |
2266 | installed. | |
2267 | ||
2268 | This configuration is obsoleted in GCC 3.1. | |
2269 | ||
2270 | @html | |
2271 | </p> | |
2272 | <hr> | |
2273 | @end html | |
2274 | @heading @anchor{ix86-*-linux*aout}i?86-*-linux*aout | |
2275 | Use this configuration to generate @file{a.out} binaries on Linux-based | |
2276 | GNU systems. This configuration is being superseded. You must use | |
2277 | gas/binutils version 2.5.2 or later. | |
2278 | ||
2279 | @html | |
2280 | </p> | |
2281 | <hr> | |
2282 | @end html | |
2283 | @heading @anchor{ix86-*-linux*}i?86-*-linux* | |
2284 | ||
2285 | You will need binutils 2.9.1.0.15 or newer for exception handling to work. | |
2286 | ||
2287 | If you receive Signal 11 errors when building on GNU/Linux, then it is | |
2288 | possible you have a hardware problem. Further information on this can be | |
2289 | found on @uref{http://www.bitwizard.nl/sig11/,,www.bitwizard.nl}. | |
2290 | ||
2291 | @html | |
2292 | </p> | |
2293 | <hr> | |
2294 | @end html | |
2295 | @heading @anchor{ix86-*-sco}i?86-*-sco | |
2296 | Compilation with RCC is recommended. Also, it may be a good idea to | |
2297 | link with GNU malloc instead of the malloc that comes with the system. | |
2298 | ||
2299 | @html | |
2300 | </p> | |
2301 | <hr> | |
2302 | @end html | |
2303 | @heading @anchor{ix86-*-sco3.2v4}i?86-*-sco3.2v4 | |
2304 | Use this configuration for SCO release 3.2 version 4. | |
2305 | ||
2306 | @html | |
2307 | </p> | |
2308 | <hr> | |
2309 | @end html | |
2310 | @heading @anchor{ix86-*-sco3.2v5*}i?86-*-sco3.2v5* | |
2311 | Use this for the SCO OpenServer Release 5 family of operating systems. | |
2312 | ||
2313 | Unlike earlier versions of GCC, the ability to generate COFF with this | |
2314 | target is no longer provided. | |
2315 | ||
2316 | Earlier versions of GCC emitted DWARF 1 when generating ELF to allow | |
2317 | the system debugger to be used. That support was too burdensome to | |
2318 | maintain. GCC now emits only DWARF 2 for this target. This means you | |
2319 | may use either the UDK debugger or GDB to debug programs built by this | |
2320 | version of GCC@. | |
2321 | ||
2322 | Use of the @option{-march=pentiumpro} flag can result in | |
2323 | unrecognized opcodes when using the native assembler on OS versions before | |
2324 | 5.0.6. (Support for P6 opcodes was added to the native ELF assembler in | |
2325 | that version.) While it's rather rare to see these emitted by GCC yet, | |
2326 | errors of the basic form: | |
2327 | ||
2328 | @example | |
2329 | /usr/tmp/ccaNlqBc.s:22:unknown instruction: fcomip | |
2330 | /usr/tmp/ccaNlqBc.s:50:unknown instruction: fucomip | |
2331 | @end example | |
2332 | ||
2333 | are symptoms of this problem. You may work around this by not | |
2334 | building affected files with that flag, by using the GNU assembler, or | |
2335 | by using the assembler provided with the current version of the OS@. | |
2336 | Users of GNU assembler should see the note below for hazards on doing | |
2337 | so. | |
2338 | ||
2339 | The native SCO assembler that is provided with the OS at no | |
2340 | charge is normally required. If, however, you must be able to use | |
2341 | the GNU assembler (perhaps you're compiling code with asms that | |
2342 | require GAS syntax) you may configure this package using the flags | |
2343 | @uref{./configure.html#with-gnu-as,,@option{--with-gnu-as}}. You must | |
2344 | use a recent version of GNU binutils; versions past 2.9.1 seem to work | |
2345 | well. | |
2346 | ||
2347 | In general, the @option{--with-gnu-as} option isn't as well tested | |
2348 | as the native assembler. | |
2349 | ||
2350 | Look in @file{gcc/config/i386/sco5.h} (search for ``messy'') for | |
2351 | additional OpenServer-specific flags. | |
2352 | ||
2353 | Systems based on OpenServer before 5.0.4 (@samp{uname -X} | |
2354 | will tell you what you're running) require TLS597 from | |
2355 | @uref{ftp://ftp.sco.com/TLS/,,ftp://ftp.sco.com/TLS/} | |
2356 | for C++ constructors and destructors to work right. | |
2357 | ||
2358 | The system linker in (at least) 5.0.4 and 5.0.5 will sometimes | |
2359 | do the wrong thing for a construct that GCC will emit for PIC | |
2360 | code. This can be seen as execution testsuite failures when using | |
2361 | @option{-fPIC} on @file{921215-1.c}, @file{931002-1.c}, @file{nestfunc-1.c}, and @file{gcov-1.c}. | |
2362 | For 5.0.5, an updated linker that will cure this problem is | |
2363 | available. You must install both | |
2364 | @uref{ftp://ftp.sco.com/Supplements/rs505a/,,ftp://ftp.sco.com/Supplements/rs505a/} | |
2365 | and @uref{ftp://ftp.sco.com/SLS/,,OSS499A}. | |
2366 | ||
2367 | The dynamic linker in OpenServer 5.0.5 (earlier versions may show | |
2368 | the same problem) aborts on certain G77-compiled programs. It's particularly | |
2369 | likely to be triggered by building Fortran code with the @option{-fPIC} flag. | |
2370 | Although it's conceivable that the error could be triggered by other | |
2371 | code, only G77-compiled code has been observed to cause this abort. | |
2372 | If you are getting core dumps immediately upon execution of your | |
2373 | G77 program---and especially if it's compiled with @option{-fPIC}---try applying | |
2374 | @uref{sco_osr5_g77.patch,,@file{sco_osr5_g77.patch}} to your @samp{libf2c} and | |
2375 | rebuilding GCC@. | |
2376 | Affected faults, when analyzed in a debugger, will show a stack | |
2377 | backtrace with a fault occurring in @code{rtld()} and the program | |
2378 | running as @file{/usr/lib/ld.so.1}. This problem has been reported to SCO | |
2379 | engineering and will hopefully be addressed in later releases. | |
2380 | ||
2381 | ||
2382 | @html | |
2383 | </p> | |
2384 | <hr> | |
2385 | @end html | |
2386 | @heading @anchor{ix86-*-udk}i?86-*-udk | |
2387 | ||
2388 | This target emulates the SCO Universal Development Kit and requires that | |
2389 | package be installed. (If it is installed, you will have a | |
2390 | @file{/udk/usr/ccs/bin/cc} file present.) It's very much like the | |
2391 | @samp{i?86-*-unixware7*} target | |
2392 | but is meant to be used when hosting on a system where UDK isn't the | |
2393 | default compiler such as OpenServer 5 or Unixware 2. This target will | |
2394 | generate binaries that will run on OpenServer, Unixware 2, or Unixware 7, | |
2395 | with the same warnings and caveats as the SCO UDK@. | |
2396 | ||
2397 | This target is a little tricky to build because we have to distinguish | |
2398 | it from the native tools (so it gets headers, startups, and libraries | |
2399 | from the right place) while making the tools not think we're actually | |
2400 | building a cross compiler. The easiest way to do this is with a configure | |
2401 | command like this: | |
2402 | ||
2403 | @samp{CC=/udk/usr/ccs/bin/cc @var{/your/path/to}/gcc/configure | |
2404 | --host=i686-pc-udk --target=i686-pc-udk --program-prefix=udk-} | |
2405 | ||
2406 | @emph{You should substitute @samp{i686} in the above command with the appropriate | |
2407 | processor for your host.} | |
2408 | ||
2409 | After the usual @samp{make bootstrap} and | |
2410 | @samp{make install}, you can then access the UDK-targeted GCC | |
2411 | tools by adding @command{udk-} before the commonly known name. For | |
2412 | example, to invoke the C compiler, you would use @command{udk-gcc}. | |
2413 | They will coexist peacefully with any native-target GCC tools you may | |
2414 | have installed. | |
2415 | ||
2416 | ||
2417 | @html | |
2418 | </p> | |
2419 | <hr> | |
2420 | @end html | |
2421 | @heading @anchor{ix86-*-isc}i?86-*-isc | |
2422 | This configuration is obsoleted in GCC 3.1. | |
2423 | ||
2424 | It may be a good idea to link with GNU malloc instead of the malloc that | |
2425 | comes with the system. | |
2426 | ||
2427 | In ISC version 4.1, @command{sed} core dumps when building | |
2428 | @file{deduced.h}. Use the version of @command{sed} from version 4.0. | |
2429 | ||
2430 | @html | |
2431 | </p> | |
2432 | <hr> | |
2433 | @end html | |
2434 | @heading @anchor{ix86-ibm-aix}i?86-ibm-aix | |
2435 | This configuration is obsoleted in GCC 3.1. | |
2436 | ||
2437 | You need to use GAS version 2.1 or later, and LD from | |
2438 | GNU binutils version 2.2 or later. | |
2439 | ||
2440 | @html | |
2441 | </p> | |
2442 | <hr> | |
2443 | @end html | |
2444 | @heading @anchor{ix86-sequent-bsd}i?86-sequent-bsd | |
2445 | This configuration is obsoleted in GCC 3.1. | |
2446 | ||
2447 | Go to the Berkeley universe before compiling. | |
2448 | ||
2449 | @html | |
2450 | </p> | |
2451 | <hr> | |
2452 | @end html | |
2453 | @heading @anchor{ix86-sequent-ptx1*}i?86-sequent-ptx1*, i?86-sequent-ptx2*, i?86-sequent-sysv3* | |
2454 | This configuration is obsoleted in GCC 3.1. | |
2455 | ||
2456 | You must install GNU @command{sed} before running @command{configure}. | |
2457 | ||
2458 | The @code{fixproto} shell script may trigger a bug in the system shell. | |
2459 | If you encounter this problem, upgrade your operating system or | |
2460 | use @command{bash} (the GNU shell) to run @code{fixproto}. | |
2461 | ||
2462 | @html | |
2463 | </p> | |
2464 | <hr> | |
2465 | @end html | |
2466 | @heading @anchor{i860-intel-osf*}i860-intel-osf* | |
2467 | All support for the i860 processor is obsoleted in GCC 3.1. | |
2468 | ||
2469 | On the Intel Paragon (an i860 machine), if you are using operating | |
2470 | system version 1.0, you will get warnings or errors about redefinition | |
2471 | of @code{va_arg} when you build GCC@. | |
2472 | ||
2473 | If this happens, then you need to link most programs with the library | |
2474 | @file{iclib.a}. You must also modify @file{stdio.h} as follows: before | |
2475 | the lines | |
2476 | ||
2477 | @example | |
2478 | #if defined(__i860__) && !defined(_VA_LIST) | |
2479 | #include <va_list.h> | |
2480 | @end example | |
2481 | ||
2482 | @noindent | |
2483 | insert the line | |
2484 | ||
2485 | @example | |
2486 | #if __PGC__ | |
2487 | @end example | |
2488 | ||
2489 | @noindent | |
2490 | and after the lines | |
2491 | ||
2492 | @example | |
2493 | extern int vprintf(const char *, va_list ); | |
2494 | extern int vsprintf(char *, const char *, va_list ); | |
2495 | #endif | |
2496 | @end example | |
2497 | ||
2498 | @noindent | |
2499 | insert the line | |
2500 | ||
2501 | @example | |
2502 | #endif /* __PGC__ */ | |
2503 | @end example | |
2504 | ||
2505 | These problems don't exist in operating system version 1.1. | |
2506 | ||
2507 | @html | |
2508 | </p> | |
2509 | <hr> | |
2510 | @end html | |
2511 | @heading @anchor{ia64-*-linux}ia64-*-linux | |
2512 | IA-64 processor (also known as IPF, or Itanium Processor Family) | |
2513 | running GNU/Linux. | |
2514 | ||
2515 | The toolchain is not completely finished, so requirements will continue | |
2516 | to change. | |
2517 | GCC 3.0.1 and later require glibc 2.2.4. | |
2518 | GCC 3.0.2 requires binutils from 2001-09-05 or later. | |
2519 | GCC 3.0.1 requires binutils 2.11.1 or later. | |
2520 | ||
2521 | None of the following versions of GCC has an ABI that is compatible | |
2522 | with any of the other versions in this list, with the exception that | |
2523 | Red Hat 2.96 and Trillian 000171 are compatible with each other: | |
2524 | 3.0.2, 3.0.1, 3.0, Red Hat 2.96, and Trillian 000717. | |
2525 | This primarily affects C++ programs and programs that create shared libraries. | |
2526 | Because of these ABI incompatibilities, GCC 3.0.2 is not recommended for | |
2527 | user programs on GNU/Linux systems built using earlier compiler releases. | |
2528 | GCC 3.0.2 is recommended for compiling linux, the kernel. | |
2529 | GCC 3.0.2 is believed to be fully ABI compliant, and hence no more major | |
2530 | ABI changes are expected. | |
2531 | ||
2532 | @html | |
2533 | </p> | |
2534 | <hr> | |
2535 | @end html | |
2536 | @heading @anchor{*-lynx-lynxos}*-lynx-lynxos | |
2537 | LynxOS 2.2 and earlier comes with GCC 1.x already installed as | |
2538 | @file{/bin/gcc}. You should compile with this instead of @file{/bin/cc}. | |
2539 | You can tell GCC to use the GNU assembler and linker, by specifying | |
2540 | @samp{--with-gnu-as --with-gnu-ld} when configuring. These will produce | |
2541 | COFF format object files and executables; otherwise GCC will use the | |
2542 | installed tools, which produce @file{a.out} format executables. | |
2543 | ||
2544 | @html | |
2545 | </p> | |
2546 | <hr> | |
2547 | <!-- rs6000-ibm-aix*, powerpc-ibm-aix* --> | |
2548 | @end html | |
2549 | @heading @anchor{*-ibm-aix*}*-ibm-aix* | |
2550 | ||
2551 | AIX Make frequently has problems with GCC makefiles. GNU Make 3.76 or | |
2552 | newer is recommended to build on this platform. | |
2553 | ||
2554 | Errors involving @code{alloca} when building GCC generally are due | |
2555 | to an incorrect definition of @code{CC} in the Makefile or mixing files | |
2556 | compiled with the native C compiler and GCC@. During the stage1 phase of | |
2557 | the build, the native AIX compiler @strong{must} be invoked as @command{cc} | |
2558 | (not @command{xlc}). Once @command{configure} has been informed of | |
2559 | @command{xlc}, one needs to use @samp{make distclean} to remove the | |
2560 | configure cache files and ensure that @env{CC} environment variable | |
2561 | does not provide a definition that will confuse @command{configure}. | |
2562 | If this error occurs during stage2 or later, then the problem most likely | |
2563 | is the version of Make (see above). | |
2564 | ||
2565 | The GNU Assembler incorrectly reports that it supports WEAK symbols on | |
2566 | AIX which causes GCC to try to utilize weak symbol functionality which | |
2567 | is not really supported on the platform. The native @command{as} and | |
2568 | @command{ld} still are recommended. The native AIX tools do | |
2569 | interoperate with GCC@. | |
2570 | ||
2571 | Building @file{libstdc++.a} requires a fix for a AIX Assembler bug | |
2572 | APAR IY26685 (AIX 4.3) or APAR IY25528 (AIX 5.1). | |
2573 | ||
2574 | Linking executables and shared libraries may produce warnings of | |
2575 | duplicate symbols. The assembly files generated by GCC for AIX always | |
2576 | have included multiple symbol definitions for certain global variable | |
2577 | and function declarations in the original program. The warnings should | |
2578 | not prevent the linker from producing a correct library or runnable | |
2579 | executable. | |
2580 | ||
2581 | AIX 4.3 utilizes a ``large format'' archive to support both 32-bit and | |
2582 | 64-bit object modules. The routines provided in AIX 4.3.0 and AIX 4.3.1 | |
2583 | to parse archive libraries did not handle the new format correctly. | |
2584 | These routines are used by GCC and result in error messages during | |
2585 | linking such as ``not a COFF file''. The version of the routines shipped | |
2586 | with AIX 4.3.1 should work for a 32-bit environment. The @option{-g} | |
2587 | option of the archive command may be used to create archives of 32-bit | |
2588 | objects using the original ``small format''. A correct version of the | |
2589 | routines is shipped with AIX 4.3.2 and above. | |
2590 | ||
2591 | Some versions of the AIX binder (linker) can fail with a relocation | |
2592 | overflow severe error when the @option{-bbigtoc} option is used to link | |
2593 | GCC-produced object files into an executable that overflows the TOC@. A fix | |
2594 | for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC) is | |
2595 | available from IBM Customer Support and from its | |
2596 | @uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com} | |
2597 | website as PTF U455193. | |
2598 | ||
2599 | The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core | |
2600 | with a segmentation fault when invoked by any version of GCC@. A fix for | |
2601 | APAR IX87327 is available from IBM Customer Support and from its | |
2602 | @uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com} | |
2603 | website as PTF U461879. This fix is incorporated in AIX 4.3.3 and above. | |
2604 | ||
2605 | The initial assembler shipped with AIX 4.3.0 generates incorrect object | |
2606 | files. A fix for APAR IX74254 (64BIT DISASSEMBLED OUTPUT FROM COMPILER FAILS | |
2607 | TO ASSEMBLE/BIND) is available from IBM Customer Support and from its | |
2608 | @uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com} | |
2609 | website as PTF U453956. This fix is incorporated in AIX 4.3.1 and above. | |
2610 | ||
2611 | AIX provides National Language Support (NLS)@. Compilers and assemblers | |
2612 | use NLS to support locale-specific representations of various data | |
2613 | formats including floating-point numbers (e.g., @samp{.} vs @samp{,} for | |
2614 | separating decimal fractions). There have been problems reported where | |
2615 | GCC does not produce the same floating-point formats that the assembler | |
2616 | expects. If one encounters this problem, set the @env{LANG} | |
2617 | environment variable to @samp{C} or @samp{En_US}. | |
2618 | ||
2619 | By default, GCC for AIX 4.1 and above produces code that can be used on | |
2620 | both Power or PowerPC processors. | |
2621 | ||
2622 | A default can be specified with the @option{-mcpu=@var{cpu_type}} | |
2623 | switch and using the configure option @option{--with-cpu-@var{cpu_type}}. | |
2624 | ||
2625 | @html | |
2626 | </p> | |
2627 | <hr> | |
2628 | @end html | |
2629 | @heading @anchor{m32r-*-elf}m32r-*-elf | |
2630 | Mitsubishi M32R processor. | |
2631 | This configuration is intended for embedded systems. | |
2632 | ||
2633 | @html | |
2634 | </p> | |
2635 | <hr> | |
2636 | @end html | |
2637 | @heading @anchor{m68000-hp-bsd}m68000-hp-bsd | |
2638 | HP 9000 series 200 running BSD@. Note that the C compiler that comes | |
2639 | with this system cannot compile GCC; contact @email{law@@cygnus.com} | |
2640 | to get binaries of GCC for bootstrapping. | |
2641 | ||
2642 | @html | |
2643 | </p> | |
2644 | <hr> | |
2645 | @end html | |
2646 | @heading @anchor{m6811-elf}m6811-elf | |
2647 | Motorola 68HC11 family micro controllers. These are used in embedded | |
2648 | applications. There are no standard Unix configurations. | |
2649 | ||
2650 | @html | |
2651 | </p> | |
2652 | <hr> | |
2653 | @end html | |
2654 | @heading @anchor{m6812-elf}m6812-elf | |
2655 | Motorola 68HC12 family micro controllers. These are used in embedded | |
2656 | applications. There are no standard Unix configurations. | |
2657 | ||
2658 | @html | |
2659 | </p> | |
2660 | <hr> | |
2661 | @end html | |
2662 | @heading @anchor{m68k-altos}m68k-altos | |
2663 | Altos 3068. This configuration is obsoleted in GCC 3.1. | |
2664 | ||
2665 | You must use the GNU assembler, linker and debugger. | |
2666 | Also, you must fix a kernel bug. | |
2667 | ||
2668 | @html | |
2669 | </p> | |
2670 | <hr> | |
2671 | @end html | |
2672 | @heading @anchor{m68k-apple-aux}m68k-apple-aux | |
2673 | Apple Macintosh running A/UX@. | |
2674 | This configuration is obsoleted in GCC 3.1. | |
2675 | ||
2676 | You may configure GCC to use either the system assembler and | |
2677 | linker or the GNU assembler and linker. You should use the GNU configuration | |
2678 | if you can, especially if you also want to use G++. You enable | |
2679 | that configuration with the @option{--with-gnu-as} and @option{--with-gnu-ld} | |
2680 | options to @code{configure}. | |
2681 | ||
2682 | Note the C compiler that comes | |
2683 | with this system cannot compile GCC@. You can find binaries of GCC | |
2684 | for bootstrapping on @code{jagubox.gsfc.nasa.gov}. | |
2685 | You will also a patched version of @file{/bin/ld} there that | |
2686 | raises some of the arbitrary limits found in the original. | |
2687 | ||
2688 | @html | |
2689 | </p> | |
2690 | <hr> | |
2691 | @end html | |
2692 | @heading @anchor{m68k-att-sysv}m68k-att-sysv | |
2693 | AT&T 3b1, a.k.a.@: 7300 PC@. This version of GCC cannot | |
2694 | be compiled with the system C compiler, which is too buggy. | |
2695 | You will need to get a previous version of GCC and use it to | |
2696 | bootstrap. Binaries are available from the OSU-CIS archive, at | |
2697 | @uref{ftp://archive.cis.ohio-state.edu/pub/att7300/}. | |
2698 | ||
2699 | @html | |
2700 | </p> | |
2701 | <hr> | |
2702 | @end html | |
2703 | @heading @anchor{m68k-bull-sysv}m68k-bull-sysv | |
2704 | Bull DPX/2 series 200 and 300 with BOS-2.00.45 up to BOS-2.01. | |
2705 | This configuration is obsoleted in GCC 3.1. | |
2706 | ||
2707 | GCC works | |
2708 | either with native assembler or GNU assembler. You can use | |
2709 | GNU assembler with native COFF generation by providing @option{--with-gnu-as} to | |
2710 | the configure script or use GNU assembler with stabs-in-COFF encapsulation | |
2711 | by providing @samp{--with-gnu-as --stabs}. For any problem with the native | |
2712 | assembler or for availability of the DPX/2 port of GAS, contact | |
2713 | @email{F.Pierresteguy@@frcl.bull.fr}. | |
2714 | ||
2715 | @html | |
2716 | </p> | |
2717 | <hr> | |
2718 | @end html | |
2719 | @heading @anchor{m68k-crds-unos}m68k-crds-unos | |
2720 | Use @samp{configure unos} for building on Unos. | |
2721 | ||
2722 | The Unos assembler is named @code{casm} instead of @code{as}. For some | |
2723 | strange reason linking @file{/bin/as} to @file{/bin/casm} changes the | |
2724 | behavior, and does not work. So, when installing GCC, you should | |
2725 | install the following script as @file{as} in the subdirectory where | |
2726 | the passes of GCC are installed: | |
2727 | ||
2728 | @example | |
2729 | #!/bin/sh | |
2730 | casm $* | |
2731 | @end example | |
2732 | ||
2733 | The default Unos library is named @file{libunos.a} instead of | |
2734 | @file{libc.a}. To allow GCC to function, either change all | |
2735 | references to @option{-lc} in @file{gcc.c} to @option{-lunos} or link | |
2736 | @file{/lib/libc.a} to @file{/lib/libunos.a}. | |
2737 | ||
2738 | @cindex @code{alloca}, for Unos | |
2739 | When compiling GCC with the standard compiler, to overcome bugs in | |
2740 | the support of @code{alloca}, do not use @option{-O} when making stage 2. | |
2741 | Then use the stage 2 compiler with @option{-O} to make the stage 3 | |
2742 | compiler. This compiler will have the same characteristics as the usual | |
2743 | stage 2 compiler on other systems. Use it to make a stage 4 compiler | |
2744 | and compare that with stage 3 to verify proper compilation. | |
2745 | ||
2746 | (Perhaps simply defining @code{ALLOCA} in @file{x-crds} as described in | |
2747 | the comments there will make the above paragraph superfluous. Please | |
2748 | inform us of whether this works.) | |
2749 | ||
2750 | Unos uses memory segmentation instead of demand paging, so you will need | |
2751 | a lot of memory. 5 Mb is barely enough if no other tasks are running. | |
2752 | If linking @file{cc1} fails, try putting the object files into a library | |
2753 | and linking from that library. | |
2754 | ||
2755 | @html | |
2756 | </p> | |
2757 | <hr> | |
2758 | @end html | |
2759 | @heading @anchor{m68k-hp-hpux}m68k-hp-hpux | |
2760 | HP 9000 series 300 or 400 running HP-UX@. HP-UX version 8.0 has a bug in | |
2761 | the assembler that prevents compilation of GCC@. This | |
2762 | bug manifests itself during the first stage of compilation, while | |
2763 | building @file{libgcc2.a}: | |
2764 | ||
2765 | @smallexample | |
2766 | _floatdisf | |
2767 | cc1: warning: `-g' option not supported on this version of GCC | |
2768 | cc1: warning: `-g1' option not supported on this version of GCC | |
2769 | ./xgcc: Internal compiler error: program as got fatal signal 11 | |
2770 | @end smallexample | |
2771 | ||
2772 | A patched version of the assembler is available as the file | |
2773 | @uref{ftp://altdorf.ai.mit.edu/archive/cph/hpux-8.0-assembler}. If you | |
2774 | have HP software support, the patch can also be obtained directly from | |
2775 | HP, as described in the following note: | |
2776 | ||
2777 | @quotation | |
2778 | This is the patched assembler, to patch SR#1653-010439, where the | |
2779 | assembler aborts on floating point constants. | |
2780 | ||
2781 | The bug is not really in the assembler, but in the shared library | |
2782 | version of the function ``cvtnum(3c)''. The bug on ``cvtnum(3c)'' is | |
2783 | SR#4701-078451. Anyway, the attached assembler uses the archive | |
2784 | library version of ``cvtnum(3c)'' and thus does not exhibit the bug. | |
2785 | @end quotation | |
2786 | ||
2787 | This patch is also known as PHCO_4484. | |
2788 | ||
2789 | In addition, if you wish to use gas, you must use | |
2790 | gas version 2.1 or later, and you must use the GNU linker version 2.1 or | |
2791 | later. Earlier versions of gas relied upon a program which converted the | |
2792 | gas output into the native HP-UX format, but that program has not been | |
2793 | kept up to date. gdb does not understand that native HP-UX format, so | |
2794 | you must use gas if you wish to use gdb. | |
2795 | ||
2796 | On HP-UX version 8.05, but not on 8.07 or more recent versions, the | |
2797 | @code{fixproto} shell script triggers a bug in the system shell. If you | |
2798 | encounter this problem, upgrade your operating system or use BASH (the | |
2799 | GNU shell) to run @code{fixproto}. This bug will cause the fixproto | |
2800 | program to report an error of the form: | |
2801 | ||
2802 | @example | |
2803 | ./fixproto: sh internal 1K buffer overflow | |
2804 | @end example | |
2805 | ||
2806 | To fix this, you can also change the first line of the fixproto script | |
2807 | to look like: | |
2808 | ||
2809 | @example | |
2810 | #!/bin/ksh | |
2811 | @end example | |
2812 | ||
2813 | ||
2814 | @html | |
2815 | </p> | |
2816 | <hr> | |
2817 | @end html | |
2818 | @heading @anchor{m68k-*-nextstep*}m68k-*-nextstep* | |
2819 | These configurations are obsoleted in GCC 3.1. | |
2820 | ||
2821 | Current GCC versions probably do not work on version 2 of the NeXT | |
2822 | operating system. | |
2823 | ||
2824 | On NeXTStep 3.0, the Objective-C compiler does not work, due, | |
2825 | apparently, to a kernel bug that it happens to trigger. This problem | |
2826 | does not happen on 3.1. | |
2827 | ||
2828 | You absolutely @strong{must} use GNU sed and GNU make on this platform. | |
2829 | ||
2830 | ||
2831 | On NeXTSTEP 3.x where x < 3 the build of GCC will abort during | |
2832 | stage1 with an error message like this: | |
2833 | ||
2834 | @example | |
2835 | _eh | |
2836 | /usr/tmp/ccbbsZ0U.s:987:Unknown pseudo-op: .section | |
2837 | /usr/tmp/ccbbsZ0U.s:987:Rest of line ignored. 1st junk character | |
2838 | valued 95 (_). | |
2839 | @end example | |
2840 | ||
2841 | The reason for this is the fact that NeXT's assembler for these | |
2842 | versions of the operating system does not support the @samp{.section} | |
2843 | pseudo op that's needed for full C++ exception functionality. | |
2844 | ||
2845 | As NeXT's assembler is a derived work from GNU as, a free | |
2846 | replacement that does can be obtained at | |
2847 | @uref{ftp://ftp.next.peak.org:/next-ftp/next/apps/devtools/as.3.3.NIHS.s.tar.gz,,ftp://ftp.next.peak.org:/next-ftp/next/apps/devtools/as.3.3.NIHS.s.tar.gz}. | |
2848 | ||
2849 | If you try to build the integrated C++ & C++ runtime libraries on this system | |
2850 | you will run into trouble with include files. The way to get around this is | |
2851 | to use the following sequence. Note you must have write permission to | |
2852 | the directory @var{prefix} you specified in the configuration process of GCC | |
2853 | for this sequence to work. | |
2854 | ||
2855 | @example | |
2856 | cd bld-gcc | |
2857 | make all-texinfo all-bison all-byacc all-binutils all-gas all-ld | |
2858 | cd gcc | |
2859 | make bootstrap | |
2860 | make install-headers-tar | |
2861 | cd .. | |
2862 | make bootstrap3 | |
2863 | @end example | |
2864 | ||
2865 | @html | |
2866 | </p> | |
2867 | <hr> | |
2868 | @end html | |
2869 | @heading @anchor{m68k-ncr-*}m68k-ncr-* | |
2870 | On the Tower models 4@var{n}0 and 6@var{n}0, by default a process is not | |
2871 | allowed to have more than one megabyte of memory. GCC cannot compile | |
2872 | itself (or many other programs) with @option{-O} in that much memory. | |
2873 | ||
2874 | To solve this problem, reconfigure the kernel adding the following line | |
2875 | to the configuration file: | |
2876 | ||
2877 | @smallexample | |
2878 | MAXUMEM = 4096 | |
2879 | @end smallexample | |
2880 | ||
2881 | ||
2882 | @html | |
2883 | </p> | |
2884 | <hr> | |
2885 | @end html | |
2886 | @heading @anchor{m68k-sun}m68k-sun | |
2887 | Sun 3. We do not provide a configuration file to use the Sun FPA by | |
2888 | default, because programs that establish signal handlers for floating | |
2889 | point traps inherently cannot work with the FPA@. | |
2890 | ||
2891 | @html | |
2892 | </p> | |
2893 | <hr> | |
2894 | @end html | |
2895 | @heading @anchor{m68k-sun-sunos4.1.1}m68k-sun-sunos4.1.1 | |
2896 | ||
2897 | It is reported that you may need the GNU assembler on this platform. | |
2898 | ||
2899 | ||
2900 | @html | |
2901 | </p> | |
2902 | <hr> | |
2903 | @end html | |
2904 | @heading @anchor{m88k-*-svr3}m88k-*-svr3 | |
2905 | Motorola m88k running the AT&T/Unisoft/Motorola V.3 reference port. | |
2906 | These configurations are obsoleted in GCC 3.1. | |
2907 | ||
2908 | These systems tend to use the Green Hills C, revision 1.8.5, as the | |
2909 | standard C compiler. There are apparently bugs in this compiler that | |
2910 | result in object files differences between stage 2 and stage 3. If this | |
2911 | happens, make the stage 4 compiler and compare it to the stage 3 | |
2912 | compiler. If the stage 3 and stage 4 object files are identical, this | |
2913 | suggests you encountered a problem with the standard C compiler; the | |
2914 | stage 3 and 4 compilers may be usable. | |
2915 | ||
2916 | It is best, however, to use an older version of GCC for bootstrapping | |
2917 | if you have one. | |
2918 | ||
2919 | @html | |
2920 | </p> | |
2921 | <hr> | |
2922 | @end html | |
2923 | @heading @anchor{m88k-*-dgux}m88k-*-dgux | |
2924 | Motorola m88k running DG/UX@. | |
2925 | These configurations are obsoleted in GCC 3.1. | |
2926 | ||
2927 | To build 88open BCS native or cross | |
2928 | compilers on DG/UX, specify the configuration name as | |
2929 | @samp{m88k-*-dguxbcs} and build in the 88open BCS software development | |
2930 | environment. To build ELF native or cross compilers on DG/UX, specify | |
2931 | @samp{m88k-*-dgux} and build in the DG/UX ELF development environment. | |
2932 | You set the software development environment by issuing | |
2933 | @samp{sde-target} command and specifying either @samp{m88kbcs} or | |
2934 | @samp{m88kdguxelf} as the operand. | |
2935 | ||
2936 | If you do not specify a configuration name, @file{configure} guesses the | |
2937 | configuration based on the current software development environment. | |
2938 | ||
2939 | @html | |
2940 | </p> | |
2941 | <hr> | |
2942 | @end html | |
2943 | @heading @anchor{m88k-tektronix-sysv3}m88k-tektronix-sysv3 | |
2944 | Tektronix XD88 running UTekV 3.2e. | |
2945 | These configurations are obsoleted in GCC 3.1. | |
2946 | ||
2947 | Do not turn on | |
2948 | optimization while building stage1 if you bootstrap with | |
2949 | the buggy Green Hills compiler. Also, the bundled LAI | |
2950 | System V NFS is buggy so if you build in an NFS mounted | |
2951 | directory, start from a fresh reboot, or avoid NFS all together. | |
2952 | Otherwise you may have trouble getting clean comparisons | |
2953 | between stages. | |
2954 | ||
2955 | @html | |
2956 | </p> | |
2957 | <hr> | |
2958 | @end html | |
2959 | @heading @anchor{mips-*-*}mips-*-* | |
2960 | If you use the 1.31 version of the MIPS assembler (such as was shipped | |
2961 | with Ultrix 3.1), you will need to use the @option{-fno-delayed-branch} switch | |
2962 | when optimizing floating point code. Otherwise, the assembler will | |
2963 | complain when the GCC compiler fills a branch delay slot with a | |
2964 | floating point instruction, such as @code{add.d}. | |
2965 | ||
2966 | If on a MIPS system you get an error message saying ``does not have gp | |
2967 | sections for all it's [sic] sectons [sic]'', don't worry about it. This | |
2968 | happens whenever you use GAS with the MIPS linker, but there is not | |
2969 | really anything wrong, and it is okay to use the output file. You can | |
2970 | stop such warnings by installing the GNU linker. | |
2971 | ||
2972 | It would be nice to extend GAS to produce the gp tables, but they are | |
2973 | optional, and there should not be a warning about their absence. | |
2974 | ||
2975 | Users have reported some problems with version 2.0 of the MIPS | |
2976 | compiler tools that were shipped with Ultrix 4.1. Version 2.10 | |
2977 | which came with Ultrix 4.2 seems to work fine. | |
2978 | ||
2979 | Users have also reported some problems with version 2.20 of the | |
2980 | MIPS compiler tools that were shipped with RISC/os 4.x. The earlier | |
2981 | version 2.11 seems to work fine. | |
2982 | ||
2983 | Some versions of the MIPS linker will issue an assertion failure | |
2984 | when linking code that uses @code{alloca} against shared | |
2985 | libraries on RISC-OS 5.0, and DEC's OSF/1 systems. This is a bug | |
2986 | in the linker, that is supposed to be fixed in future revisions. | |
2987 | To protect against this, GCC passes @option{-non_shared} to the | |
2988 | linker unless you pass an explicit @option{-shared} or | |
2989 | @option{-call_shared} switch. | |
2990 | ||
2991 | @heading @anchor{mips-mips-bsd}mips-mips-bsd | |
2992 | MIPS machines running the MIPS operating system in BSD mode. | |
2993 | These configurations are obsoleted in GCC 3.1. | |
2994 | ||
2995 | It's possible that some old versions of the system lack the functions | |
2996 | @code{memcpy}, @code{memmove}, @code{memcmp}, and @code{memset}. If your | |
2997 | system lacks these, you must remove or undo the definition of | |
2998 | @code{TARGET_MEM_FUNCTIONS} in @file{mips-bsd.h}. | |
2999 | ||
3000 | If you use the MIPS C compiler to bootstrap, it may be necessary | |
3001 | to increase its table size for switch statements with the | |
3002 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
3003 | optimization option, you also need to use @option{-Olimit 3000}. | |
3004 | Both of these options are automatically generated in the | |
3005 | @file{Makefile} that the shell script @file{configure} builds. | |
3006 | If you override the @code{CC} make variable and use the MIPS | |
3007 | compilers, you may need to add @option{-Wf,-XNg1500 -Olimit 3000}. | |
3008 | ||
3009 | @html | |
3010 | </p> | |
3011 | <hr> | |
3012 | @end html | |
3013 | @heading @anchor{mips-dec-*}mips-dec-* | |
3014 | These configurations are obsoleted in GCC 3.1. | |
3015 | ||
3016 | MIPS-based DECstations can support three different personalities: | |
3017 | Ultrix, DEC OSF/1, and OSF/rose. (Alpha-based DECstation products have | |
3018 | a configuration name beginning with @samp{alpha*-dec}.) To configure GCC | |
3019 | for these platforms use the following configurations: | |
3020 | ||
3021 | @table @samp | |
3022 | @item mips-dec-ultrix | |
3023 | Ultrix configuration. | |
3024 | ||
3025 | @item mips-dec-osf1 | |
3026 | DEC's version of OSF/1. | |
3027 | ||
3028 | @item mips-dec-osfrose | |
3029 | Open Software Foundation reference port of OSF/1 which uses the | |
3030 | OSF/rose object file format instead of ECOFF@. Normally, you | |
3031 | would not select this configuration. | |
3032 | @end table | |
3033 | ||
3034 | If you use the MIPS C compiler to bootstrap, it may be necessary | |
3035 | to increase its table size for switch statements with the | |
3036 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
3037 | optimization option, you also need to use @option{-Olimit 3000}. | |
3038 | Both of these options are automatically generated in the | |
3039 | @file{Makefile} that the shell script @file{configure} builds. | |
3040 | If you override the @code{CC} make variable and use the MIPS | |
3041 | compilers, you may need to add @option{-Wf,-XNg1500 -Olimit 3000}. | |
3042 | ||
3043 | @html | |
3044 | </p> | |
3045 | <hr> | |
3046 | @end html | |
3047 | @heading @anchor{mips-mips-riscos*}mips-mips-riscos* | |
3048 | These configurations are obsoleted in GCC 3.1. | |
3049 | ||
3050 | If you use the MIPS C compiler to bootstrap, it may be necessary | |
3051 | to increase its table size for switch statements with the | |
3052 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
3053 | optimization option, you also need to use @option{-Olimit 3000}. | |
3054 | Both of these options are automatically generated in the | |
3055 | @file{Makefile} that the shell script @file{configure} builds. | |
3056 | If you override the @code{CC} make variable and use the MIPS | |
3057 | compilers, you may need to add @samp{-Wf,-XNg1500 -Olimit 3000}. | |
3058 | ||
3059 | MIPS computers running RISC-OS can support four different | |
3060 | personalities: default, BSD 4.3, System V.3, and System V.4 | |
3061 | (older versions of RISC-OS don't support V.4). To configure GCC | |
3062 | for these platforms use the following configurations: | |
3063 | ||
3064 | @table @samp | |
3065 | @item mips-mips-riscos@var{rev} | |
3066 | Default configuration for RISC-OS, revision @var{rev}. | |
3067 | ||
3068 | @item mips-mips-riscos@var{rev}bsd | |
3069 | BSD 4.3 configuration for RISC-OS, revision @var{rev}. | |
3070 | ||
3071 | @item mips-mips-riscos@var{rev}sysv4 | |
3072 | System V.4 configuration for RISC-OS, revision @var{rev}. | |
3073 | ||
3074 | @html | |
3075 | </p> | |
3076 | <hr> | |
3077 | @end html | |
3078 | @item mips-mips-riscos@var{rev}sysv | |
3079 | System V.3 configuration for RISC-OS, revision @var{rev}. | |
3080 | @end table | |
3081 | ||
3082 | The revision @code{rev} mentioned above is the revision of | |
3083 | RISC-OS to use. You must reconfigure GCC when going from a | |
3084 | RISC-OS revision 4 to RISC-OS revision 5. This has the effect of | |
3085 | avoiding a linker bug. | |
3086 | ||
3087 | @html | |
3088 | </p> | |
3089 | <hr> | |
3090 | @end html | |
3091 | @heading @anchor{mips-sgi-irix4}mips-sgi-irix4 | |
3092 | This configuration is obsoleted in GCC 3.1. | |
3093 | ||
3094 | In order to compile GCC on an SGI running IRIX 4, the ``c.hdr.lib'' | |
3095 | option must be installed from the CD-ROM supplied from Silicon Graphics. | |
3096 | This is found on the 2nd CD in release 4.0.1. | |
3097 | ||
3098 | On IRIX version 4.0.5F, and perhaps on some other versions as well, | |
3099 | there is an assembler bug that reorders instructions incorrectly. To | |
3100 | work around it, specify the target configuration | |
3101 | @samp{mips-sgi-irix4loser}. This configuration inhibits assembler | |
3102 | optimization. | |
3103 | ||
3104 | In a compiler configured with target @samp{mips-sgi-irix4}, you can turn | |
3105 | off assembler optimization by using the @option{-noasmopt} option. This | |
3106 | compiler option passes the option @option{-O0} to the assembler, to | |
3107 | inhibit reordering. | |
3108 | ||
3109 | The @option{-noasmopt} option can be useful for testing whether a problem | |
3110 | is due to erroneous assembler reordering. Even if a problem does not go | |
3111 | away with @option{-noasmopt}, it may still be due to assembler | |
3112 | reordering---perhaps GCC itself was miscompiled as a result. | |
3113 | ||
3114 | You may get the following warning on IRIX 4 platforms, it can be safely | |
3115 | ignored. | |
3116 | @example | |
3117 | warning: foo.o does not have gp tables for all its sections. | |
3118 | @end example | |
3119 | ||
3120 | @html | |
3121 | </p> | |
3122 | <hr> | |
3123 | @end html | |
3124 | @heading @anchor{mips-sgi-irix5}mips-sgi-irix5 | |
3125 | ||
3126 | This configuration has considerable problems, which will be fixed in a | |
3127 | future release. | |
3128 | ||
3129 | In order to compile GCC on an SGI running IRIX 5, the ``compiler_dev.hdr'' | |
3130 | subsystem must be installed from the IDO CD-ROM supplied by Silicon | |
3131 | Graphics. It is also available for download from | |
3132 | @uref{http://www.sgi.com/developers/devtools/apis/ido.html,,http://www.sgi.com/developers/devtools/apis/ido.html}. | |
3133 | ||
3134 | @code{make compare} may fail on version 5 of IRIX unless you add | |
3135 | @option{-save-temps} to @code{CFLAGS}. On these systems, the name of the | |
3136 | assembler input file is stored in the object file, and that makes | |
3137 | comparison fail if it differs between the @code{stage1} and | |
3138 | @code{stage2} compilations. The option @option{-save-temps} forces a | |
3139 | fixed name to be used for the assembler input file, instead of a | |
3140 | randomly chosen name in @file{/tmp}. Do not add @option{-save-temps} | |
3141 | unless the comparisons fail without that option. If you do you | |
3142 | @option{-save-temps}, you will have to manually delete the @samp{.i} and | |
3143 | @samp{.s} files after each series of compilations. | |
3144 | ||
3145 | If you use the MIPS C compiler to bootstrap, it may be necessary | |
3146 | to increase its table size for switch statements with the | |
3147 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
3148 | optimization option, you also need to use @option{-Olimit 3000}. | |
3149 | ||
3150 | To enable debugging under IRIX 5, you must use GNU @command{as} 2.11.2 | |
3151 | or later, | |
3152 | and use the @option{--with-gnu-as} configure option when configuring GCC. | |
3153 | GNU @command{as} is distributed as part of the binutils package. | |
3154 | When using release 2.11.2, you need to apply a patch | |
3155 | @uref{http://sources.redhat.com/ml/binutils/2001-07/msg00352.html,,http://sources.redhat.com/ml/binutils/2001-07/msg00352.html} | |
3156 | which will be included in the next release of binutils. | |
3157 | ||
3158 | When building GCC, the build process loops rebuilding @command{cc1} over | |
3159 | and over again. This happens on @samp{mips-sgi-irix5.2}, and possibly | |
3160 | other platforms. It has been reported that this is a known bug in the | |
3161 | @command{make} shipped with IRIX 5.2. We recommend you use GNU | |
3162 | @command{make} instead of the vendor supplied @command{make} program; | |
3163 | however, you may have success with @command{smake} on IRIX 5.2 if you do | |
3164 | not have GNU @command{make} available. | |
3165 | ||
3166 | @html | |
3167 | </p> | |
3168 | <hr> | |
3169 | @end html | |
3170 | @heading @anchor{mips-sgi-irix6}mips-sgi-irix6 | |
3171 | ||
3172 | If you are using IRIX @command{cc} as your bootstrap compiler, you must | |
3173 | ensure that the N32 ABI is in use. To test this, compile a simple C | |
3174 | file with @command{cc} and then run @command{file} on the | |
3175 | resulting object file. The output should look like: | |
3176 | ||
3177 | @example | |
3178 | test.o: ELF N32 MSB @dots{} | |
3179 | @end example | |
3180 | ||
3181 | If you see: | |
3182 | ||
3183 | @example | |
3184 | test.o: ELF 32-bit MSB @dots{} | |
3185 | @end example | |
3186 | ||
3187 | or | |
3188 | ||
3189 | @example | |
3190 | test.o: ELF 64-bit MSB @dots{} | |
3191 | @end example | |
3192 | ||
3193 | then your version of @command{cc} uses the O32 or N64 ABI by default. You | |
3194 | should set the environment variable @env{CC} to @samp{cc -n32} | |
3195 | before configuring GCC@. | |
3196 | ||
3197 | GCC on IRIX 6 is usually built to support both the N32 and N64 ABIs. If | |
3198 | you build GCC on a system that doesn't have the N64 libraries installed, | |
3199 | you need to configure with @option{--disable-multilib} so GCC doesn't | |
3200 | try to use them. Look for @file{/usr/lib64/libc.so.1} to see if you | |
3201 | have the 64-bit libraries installed. | |
3202 | ||
3203 | You must @emph{not} use GNU @command{as} (which isn't built anyway as of | |
3204 | binutils 2.11.2) on IRIX 6 platforms; doing so will only cause problems. | |
3205 | ||
3206 | GCC does not currently support generating O32 ABI binaries in the | |
3207 | @samp{mips-sgi-irix6} configurations. It is possible to create a GCC | |
3208 | with O32 ABI only support by configuring it for the @samp{mips-sgi-irix5} | |
3209 | target and using a patched GNU @command{as} 2.11.2 as documented in the | |
3210 | @uref{#mips-sgi-irix5,,@samp{mips-sgi-irix5}} section above. Using the | |
3211 | native assembler requires patches to GCC which will be included in a | |
3212 | future release. It is | |
3213 | expected that O32 ABI support will be available again in a future release. | |
3214 | ||
3215 | The @option{--enable-threads} option doesn't currently work, a patch is | |
3216 | in preparation for a future release. The @option{--enable-libgcj} | |
3217 | option is disabled by default: IRIX 6 uses a very low default limit | |
3218 | (20480) for the command line length. Although libtool contains a | |
3219 | workaround for this problem, at least the N64 @samp{libgcj} is known not | |
3220 | to build despite this, running into an internal error of the native | |
3221 | @command{ld}. A sure fix is to increase this limit (@samp{ncargs}) to | |
3222 | its maximum of 262144 bytes. If you have root access, you can use the | |
3223 | @command{systune} command to do this. | |
3224 | ||
3225 | GCC does not correctly pass/return structures which are | |
3226 | smaller than 16 bytes and which are not 8 bytes. The problem is very | |
3227 | involved and difficult to fix. It affects a number of other targets also, | |
3228 | but IRIX 6 is affected the most, because it is a 64 bit target, and 4 byte | |
3229 | structures are common. The exact problem is that structures are being padded | |
3230 | at the wrong end, e.g.@: a 4 byte structure is loaded into the lower 4 bytes | |
3231 | of the register when it should be loaded into the upper 4 bytes of the | |
3232 | register. | |
3233 | ||
3234 | GCC is consistent with itself, but not consistent with the SGI C compiler | |
3235 | (and the SGI supplied runtime libraries), so the only failures that can | |
3236 | happen are when there are library functions that take/return such | |
3237 | structures. There are very few such library functions. Currently this | |
3238 | is known to affect @code{inet_ntoa}, @code{inet_lnaof}, | |
3239 | @code{inet_netof}, @code{inet_makeaddr}, and @code{semctl}. Until the | |
3240 | bug is fixed, GCC contains workarounds for the known affected functions. | |
3241 | ||
3242 | See @uref{http://freeware.sgi.com/,,http://freeware.sgi.com/} for more | |
3243 | information about using GCC on IRIX platforms. | |
3244 | ||
3245 | @html | |
3246 | </p> | |
3247 | <hr> | |
3248 | @end html | |
3249 | @heading @anchor{mips-sony-sysv}mips-sony-sysv | |
3250 | Sony MIPS NEWS@. This configuration is obsoleted in GCC 3.1. | |
3251 | ||
3252 | This works in NEWSOS 5.0.1, but not in 5.0.2 (which uses ELF instead of | |
3253 | COFF)@. In particular, the linker does not like the code generated by | |
3254 | GCC when shared libraries are linked in. | |
3255 | ||
3256 | @html | |
3257 | </p> | |
3258 | <hr> | |
3259 | @end html | |
3260 | @heading @anchor{ns32k-encore}ns32k-encore | |
3261 | This configuration is obsoleted in GCC 3.1. | |
3262 | ||
3263 | Encore ns32000 system. Encore systems are supported only under BSD@. | |
3264 | ||
3265 | @html | |
3266 | </p> | |
3267 | <hr> | |
3268 | @end html | |
3269 | @heading @anchor{ns32k-*-genix}ns32k-*-genix | |
3270 | National Semiconductor ns32000 system. This configuration is obsoleted | |
3271 | in GCC 3.1. | |
3272 | ||
3273 | Genix has bugs in @code{alloca} and @code{malloc}; you must get the | |
3274 | compiled versions of these from GNU Emacs. | |
3275 | ||
3276 | @html | |
3277 | </p> | |
3278 | <hr> | |
3279 | @end html | |
3280 | @heading @anchor{ns32k-sequent}ns32k-sequent | |
3281 | This configuration is obsoleted in GCC 3.1. | |
3282 | ||
3283 | Go to the Berkeley universe before compiling. | |
3284 | ||
3285 | @html | |
3286 | </p> | |
3287 | <hr> | |
3288 | @end html | |
3289 | @heading @anchor{ns32k-utek}ns32k-utek | |
3290 | UTEK ns32000 system (``merlin''). This configuration is obsoleted in | |
3291 | GCC 3.1. | |
3292 | ||
3293 | The C compiler that comes with this system cannot compile GCC; contact | |
3294 | @samp{tektronix!reed!mason} to get binaries of GCC for bootstrapping. | |
3295 | ||
3296 | ||
3297 | @html | |
3298 | </p> | |
3299 | <hr> | |
3300 | @end html | |
3301 | @heading @anchor{powerpc*-*-*}powerpc-*-* | |
3302 | ||
3303 | You can specify a default version for the @option{-mcpu=@var{cpu_type}} | |
3304 | switch by using the configure option @option{--with-cpu-@var{cpu_type}}. | |
3305 | ||
3306 | @html | |
3307 | </p> | |
3308 | <hr> | |
3309 | @end html | |
3310 | @heading @anchor{powerpc-*-darwin*}powerpc-*-darwin* | |
3311 | PowerPC running Darwin (Mac OS X kernel). | |
3312 | ||
3313 | GCC 3.0 does not support Darwin, but 3.1 and later releases will work. | |
3314 | ||
3315 | Pre-installed versions of Mac OS X may not include any developer tools, | |
3316 | meaning that you will not be able to build GCC from source. Tool | |
3317 | binaries are available at | |
3318 | @uref{http://www.opensource.apple.com/projects/darwin} (free | |
3319 | registration required). | |
3320 | ||
3321 | Versions of the assembler prior to ``cctools-364'' cannot handle the | |
3322 | 4-argument form of rlwinm and related mask-using instructions. Darwin | |
3323 | 1.3 (Mac OS X 10.0) uses cctools-353 for instance. To get cctools-364, | |
3324 | check out @file{cctools} with tag @samp{Apple-364}, build it, and | |
3325 | install the assembler as @file{usr/bin/as}. See | |
3326 | @uref{http://www.opensource.apple.com/tools/cvs/docs.html} for details. | |
3327 | ||
3328 | Also, the default stack limit of 512K is too small, and a bootstrap will | |
3329 | typically fail when self-compiling @file{expr.c}. Set the stack to 800K | |
3330 | or more, for instance by doing @samp{limit stack 800}. It's also | |
3331 | convenient to use the GNU preprocessor instead of Apple's during the | |
3332 | first stage of bootstrapping; this is automatic when doing @samp{make | |
3333 | bootstrap}, but to do it from the toplevel objdir you will need to say | |
3334 | @samp{make CC='cc -no-cpp-precomp' bootstrap}. | |
3335 | ||
3336 | Note that the version of GCC shipped by Apple typically includes a | |
3337 | number of extensions not available in a standard GCC release. These | |
3338 | extensions are generally specific to Mac programming. | |
3339 | ||
3340 | @html | |
3341 | </p> | |
3342 | <hr> | |
3343 | @end html | |
3344 | @heading @anchor{powerpc-*-elf}powerpc-*-elf, powerpc-*-sysv4 | |
3345 | PowerPC system in big endian mode, running System V.4. | |
3346 | ||
3347 | @html | |
3348 | </p> | |
3349 | <hr> | |
3350 | @end html | |
3351 | @heading @anchor{powerpc-*-linux-gnu*}powerpc-*-linux-gnu* | |
3352 | ||
3353 | You will need | |
3354 | @uref{ftp://ftp.varesearch.com/pub/support/hjl/binutils,,binutils 2.9.4.0.8} | |
3355 | or newer for a working GCC@. It is strongly recommended to recompile binutils | |
3356 | if you initially built it with gcc-2.7.2.x. | |
3357 | ||
3358 | @html | |
3359 | </p> | |
3360 | <hr> | |
3361 | @end html | |
3362 | @heading @anchor{powerpc-*-netbsd*}powerpc-*-netbsd* | |
3363 | PowerPC system in big endian mode running NetBSD@. To build the | |
3364 | documentation you will need Texinfo version 4.1 (NetBSD 1.5.1 included | |
3365 | Texinfo version 3.12). | |
3366 | ||
3367 | @html | |
3368 | </p> | |
3369 | <hr> | |
3370 | @end html | |
3371 | @heading @anchor{powerpc-*-eabiaix}powerpc-*-eabiaix | |
3372 | Embedded PowerPC system in big endian mode with @option{-mcall-aix} selected as | |
3373 | the default. | |
3374 | ||
3375 | @html | |
3376 | </p> | |
3377 | <hr> | |
3378 | @end html | |
3379 | @heading @anchor{powerpc-*-eabisim}powerpc-*-eabisim | |
3380 | Embedded PowerPC system in big endian mode for use in running under the | |
3381 | PSIM simulator. | |
3382 | ||
3383 | @html | |
3384 | </p> | |
3385 | <hr> | |
3386 | @end html | |
3387 | @heading @anchor{powerpc-*-eabi}powerpc-*-eabi | |
3388 | Embedded PowerPC system in big endian mode. | |
3389 | ||
3390 | @html | |
3391 | </p> | |
3392 | <hr> | |
3393 | @end html | |
3394 | @heading @anchor{powerpcle-*-elf}powerpcle-*-elf, powerpcle-*-sysv4 | |
3395 | PowerPC system in little endian mode, running System V.4. | |
3396 | ||
3397 | @html | |
3398 | </p> | |
3399 | <hr> | |
3400 | @end html | |
3401 | @heading @anchor{powerpcle-*-eabisim}powerpcle-*-eabisim | |
3402 | Embedded PowerPC system in little endian mode for use in running under | |
3403 | the PSIM simulator. | |
3404 | ||
3405 | @html | |
3406 | </p> | |
3407 | <hr> | |
3408 | @end html | |
3409 | @heading @anchor{powerpcle-*-eabi}powerpcle-*-eabi | |
3410 | Embedded PowerPC system in little endian mode. | |
3411 | ||
3412 | @html | |
3413 | </p> | |
3414 | <hr> | |
3415 | @end html | |
3416 | @heading @anchor{powerpcle-*-winnt}powerpcle-*-winnt, powerpcle-*-pe | |
3417 | PowerPC system in little endian mode running Windows NT@. | |
3418 | ||
3419 | @html | |
3420 | </p> | |
3421 | <hr> | |
3422 | @end html | |
3423 | @heading @anchor{romp-*-aos}romp-*-aos, romp-*-mach | |
3424 | These configurations are obsoleted in GCC 3.1. | |
3425 | ||
3426 | We recommend you compile GCC with an earlier version of itself; if you | |
3427 | compile GCC with @command{hc}, the Metaware compiler, it will work, but | |
3428 | you will get mismatches between the stage 2 and stage 3 compilers in | |
3429 | various files. These errors are minor differences in some | |
3430 | floating-point constants and can be safely ignored; the stage 3 compiler | |
3431 | is correct. | |
3432 | ||
3433 | @html | |
3434 | </p> | |
3435 | <hr> | |
3436 | @end html | |
3437 | @heading @anchor{s390-*-linux*}s390-*-linux* | |
3438 | S/390 system running Linux for S/390@. | |
3439 | ||
3440 | @html | |
3441 | </p> | |
3442 | <hr> | |
3443 | @end html | |
3444 | @heading @anchor{s390x-*-linux*}s390x-*-linux* | |
3445 | zSeries system (64 Bit) running Linux for zSeries@. | |
3446 | ||
3447 | @html | |
3448 | </p> | |
3449 | <hr> | |
3450 | @end html | |
3451 | @c Please use Solaris 2 to refer to all release of Solaris, starting | |
3452 | @c with 2.0 until 2.6, 7, and 8. Solaris 1 was a marketing name for | |
3453 | @c SunOS 4 releases which we don't use to avoid confusion. Solaris | |
3454 | @c alone is too unspecific and must be avoided. | |
3455 | @heading @anchor{*-*-solaris2*}*-*-solaris2* | |
3456 | ||
3457 | Sun does not ship a C compiler with Solaris 2. To bootstrap and install | |
3458 | GCC you first have to install a pre-built compiler, see our | |
3459 | @uref{binaries.html,,binaries page} for details. | |
3460 | ||
3461 | The Solaris 2 @command{/bin/sh} will often fail to configure | |
3462 | @file{libstdc++-v3}, @file{boehm-gc} or | |
3463 | @file{libjava}. If you encounter this problem, set @env{CONFIG_SHELL} to | |
3464 | @command{/bin/ksh} in your environment and run @command{make bootstrap} again. | |
3465 | Another possibility that sometimes helps is to remove | |
3466 | @file{*-*-solaris2*/config.cache}. | |
3467 | ||
3468 | Solaris 2 comes with a number of optional OS packages. Some of these | |
3469 | packages are needed to use GCC fully, namely @code{SUNWarc}, | |
3470 | @code{SUNWbtool}, @code{SUNWesu}, @code{SUNWhea}, @code{SUNWlibm}, | |
3471 | @code{SUNWsprot}, and @code{SUNWtoo}. If you did not install all | |
3472 | optional packages when installing Solaris 2, you will need to verify that | |
3473 | the packages that GCC needs are installed. | |
3474 | ||
3475 | To check whether an optional package is installed, use | |
3476 | the @command{pkginfo} command. To add an optional package, use the | |
3477 | @command{pkgadd} command. For further details, see the Solaris 2 | |
3478 | documentation. | |
3479 | ||
3480 | Trying to use the linker and other tools in | |
3481 | @file{/usr/ucb} to install GCC has been observed to cause trouble. | |
3482 | For example, the linker may hang indefinitely. The fix is to remove | |
3483 | @file{/usr/ucb} from your @env{PATH}. | |
3484 | ||
3485 | All releases of GNU binutils prior to 2.11.2 have known bugs on this | |
3486 | platform. We recommend the use of GNU binutils 2.11.2 or the vendor | |
3487 | tools (Sun @command{as}, Sun @command{ld}). | |
3488 | ||
3489 | Sun bug 4296832 turns up when compiling X11 headers with GCC 2.95 or | |
3490 | newer: @command{g++} will complain that types are missing. These headers assume | |
3491 | that omitting the type means @code{int}; this assumption worked for C89 but | |
3492 | is wrong for C++, and is now wrong for C99 also. | |
3493 | ||
3494 | @command{g++} accepts such (invalid) constructs with the option | |
3495 | @option{-fpermissive}; it | |
3496 | will assume that any missing type is @code{int} (as defined by C89). | |
3497 | ||
3498 | There are patches for Solaris 2.6 (105633-56 or newer for SPARC, | |
3499 | 106248-42 or newer for Intel), Solaris 7 (108376-21 or newer for SPARC, | |
3500 | 108377-20 for Intel), and Solaris 8 (108652-24 or newer for SPARC, | |
3501 | 108653-22 for Intel) that fix this bug. | |
3502 | ||
3503 | @html | |
3504 | </p> | |
3505 | <hr> | |
3506 | @end html | |
3507 | @heading @anchor{sparc-sun-solaris2*}sparc-sun-solaris2* | |
3508 | ||
3509 | When GCC is configured to use binutils 2.11.2 or later the binaries | |
3510 | produced are smaller than the ones produced using Sun's native tools; | |
3511 | this difference is quite significant for binaries containing debugging | |
3512 | information. | |
3513 | ||
3514 | Sun @command{as} 4.x is broken in that it cannot cope with long symbol names. | |
3515 | A typical error message might look similar to the following: | |
3516 | ||
3517 | @samp{/usr/ccs/bin/as: "/var/tmp/ccMsw135.s", line 11041: | |
3518 | error: can't compute value of an expression involving an external symbol.} | |
3519 | ||
3520 | This is Sun bug 4237974. This is fixed with patch 108908-02 for Solaris | |
3521 | 2.6 and has been fixed in later (5.x) versions of the assembler, | |
3522 | starting with Solaris 7. | |
3523 | ||
3524 | Starting with Solaris 7, the operating system is capable of executing | |
3525 | 64-bit SPARC V9 binaries. GCC 3.1 and later properly supports | |
3526 | this; the @option{-m64} option enables 64-bit code generation. | |
3527 | However, if all you want is code tuned for the UltraSPARC CPU, you | |
3528 | should try the @option{-mtune=ultrasparc} option instead, which produces | |
3529 | code that, unlike full 64-bit code, can still run on non-UltraSPARC | |
3530 | machines. | |
3531 | ||
3532 | When configuring on a Solaris 7 or later system that is running a kernel | |
3533 | that supports only 32-bit binaries, one must configure with | |
3534 | @option{--disable-multilib}, since we will not be able to build the | |
3535 | 64-bit target libraries. | |
3536 | ||
3537 | @html | |
3538 | </p> | |
3539 | <hr> | |
3540 | @end html | |
3541 | @heading @anchor{sparc-sun-solaris2.7}sparc-sun-solaris2.7 | |
3542 | ||
3543 | Sun patch 107058-01 (1999-01-13) for Solaris 7/SPARC triggers a bug in | |
3544 | the dynamic linker. This problem (Sun bug 4210064) affects GCC 2.8 | |
3545 | and later, including all EGCS releases. Sun formerly recommended | |
3546 | 107058-01 for all Solaris 7 users, but around 1999-09-01 it started to | |
3547 | recommend it only for people who use Sun's compilers. | |
3548 | ||
3549 | Here are some workarounds to this problem: | |
3550 | @itemize @bullet | |
3551 | @item | |
3552 | Do not install Sun patch 107058-01 until after Sun releases a | |
3553 | complete patch for bug 4210064. This is the simplest course to take, | |
3554 | unless you must also use Sun's C compiler. Unfortunately 107058-01 | |
3555 | is preinstalled on some new Solaris 7-based hosts, so you may have to | |
3556 | back it out. | |
3557 | ||
3558 | @item | |
3559 | Copy the original, unpatched Solaris 7 | |
3560 | @command{/usr/ccs/bin/as} into | |
3561 | @command{/usr/local/lib/gcc-lib/sparc-sun-solaris2.7/3.1/as}, | |
3562 | adjusting the latter name to fit your local conventions and software | |
3563 | version numbers. | |
3564 | ||
3565 | @item | |
3566 | Install Sun patch 106950-03 (1999-05-25) or later. Nobody with | |
3567 | both 107058-01 and 106950-03 installed has reported the bug with GCC | |
3568 | and Sun's dynamic linker. This last course of action is riskiest, | |
3569 | for two reasons. First, you must install 106950 on all hosts that | |
3570 | run code generated by GCC; it doesn't suffice to install it only on | |
3571 | the hosts that run GCC itself. Second, Sun says that 106950-03 is | |
3572 | only a partial fix for bug 4210064, but Sun doesn't know whether the | |
3573 | partial fix is adequate for GCC@. Revision -08 or later should fix | |
3574 | the bug. The current (as of 2001-09-24) revision is -14, and is included in | |
3575 | the Solaris 7 Recommended Patch Cluster. | |
3576 | @end itemize | |
3577 | ||
3578 | ||
3579 | @html | |
3580 | <p> | |
3581 | <hr> | |
3582 | @end html | |
3583 | @heading @anchor{sparc-sun-sunos4*}sparc-sun-sunos4* | |
3584 | ||
3585 | A bug in the SunOS 4 linker will cause it to crash when linking | |
3586 | @option{-fPIC} compiled objects (and will therefore not allow you to build | |
3587 | shared libraries). | |
3588 | ||
3589 | To fix this problem you can either use the most recent version of | |
3590 | binutils or get the latest SunOS 4 linker patch (patch ID 100170-10) | |
3591 | from Sun's patch site. | |
3592 | ||
3593 | Sometimes on a Sun 4 you may observe a crash in the program | |
3594 | @command{genflags} or @command{genoutput} while building GCC. This is said to | |
3595 | be due to a bug in @command{sh}. You can probably get around it by running | |
3596 | @command{genflags} or @command{genoutput} manually and then retrying the | |
3597 | @command{make}. | |
3598 | ||
3599 | @html | |
3600 | </p> | |
3601 | <hr> | |
3602 | @end html | |
3603 | @heading @anchor{sparc-unknown-linux-gnulibc1}sparc-unknown-linux-gnulibc1 | |
3604 | ||
3605 | It has been reported that you might need | |
3606 | @uref{ftp://ftp.yggdrasil.com/private/hjl,,binutils 2.8.1.0.23} | |
3607 | for this platform, too. | |
3608 | ||
3609 | ||
3610 | @html | |
3611 | </p> | |
3612 | <hr> | |
3613 | @end html | |
3614 | @heading @anchor{sparc-*-linux*}sparc-*-linux* | |
3615 | ||
3616 | GCC versions 3.0 and higher require binutils 2.11.2 and glibc 2.2.4 | |
3617 | or newer on this platform. All earlier binutils and glibc | |
3618 | releases mishandled unaligned relocations on @code{sparc-*-*} targets. | |
3619 | ||
3620 | ||
3621 | @html | |
3622 | </p> | |
3623 | <hr> | |
3624 | @end html | |
3625 | @heading @anchor{sparc64-*-*}sparc64-*-* | |
3626 | ||
3627 | GCC version 2.95 is not able to compile code correctly for | |
3628 | @code{sparc64} targets. Users of the Linux kernel, at least, | |
3629 | can use the @code{sparc32} program to start up a new shell | |
3630 | invocation with an environment that causes @command{configure} to | |
3631 | recognize (via @samp{uname -a}) the system as @samp{sparc-*-*} instead. | |
3632 | ||
3633 | @html | |
3634 | </p> | |
3635 | <hr> | |
3636 | @end html | |
3637 | @heading @anchor{sparcv9-*-solaris2*}sparcv9-*-solaris2* | |
3638 | ||
3639 | The following compiler flags must be specified in the configure | |
3640 | step in order to bootstrap this target with the Sun compiler: | |
3641 | ||
3642 | @example | |
3643 | % CC="cc -xildoff -xarch=v9" @var{srcdir}/configure [@var{options}] [@var{target}] | |
3644 | @end example | |
3645 | ||
3646 | @option{-xildoff} turns off the incremental linker, and @option{-xarch=v9} | |
3647 | specifies the v9 architecture to the Sun linker and assembler. | |
3648 | ||
3649 | @html | |
3650 | </p> | |
3651 | <hr> | |
3652 | @end html | |
3653 | @heading @anchor{#*-*-sysv*}*-*-sysv* | |
3654 | On System V release 3, you may get this error message | |
3655 | while linking: | |
3656 | ||
3657 | @smallexample | |
3658 | ld fatal: failed to write symbol name @var{something} | |
3659 | in strings table for file @var{whatever} | |
3660 | @end smallexample | |
3661 | ||
3662 | This probably indicates that the disk is full or your ulimit won't allow | |
3663 | the file to be as large as it needs to be. | |
3664 | ||
3665 | This problem can also result because the kernel parameter @code{MAXUMEM} | |
3666 | is too small. If so, you must regenerate the kernel and make the value | |
3667 | much larger. The default value is reported to be 1024; a value of 32768 | |
3668 | is said to work. Smaller values may also work. | |
3669 | ||
3670 | On System V, if you get an error like this, | |
3671 | ||
3672 | @example | |
3673 | /usr/local/lib/bison.simple: In function `yyparse': | |
3674 | /usr/local/lib/bison.simple:625: virtual memory exhausted | |
3675 | @end example | |
3676 | ||
3677 | @noindent | |
3678 | that too indicates a problem with disk space, ulimit, or @code{MAXUMEM}. | |
3679 | ||
3680 | On a System V release 4 system, make sure @file{/usr/bin} precedes | |
3681 | @file{/usr/ucb} in @code{PATH}. The @code{cc} command in | |
3682 | @file{/usr/ucb} uses libraries which have bugs. | |
3683 | ||
3684 | @html | |
3685 | </p> | |
3686 | <hr> | |
3687 | @end html | |
3688 | @heading @anchor{vax-dec-ultrix}vax-dec-ultrix | |
3689 | Don't try compiling with VAX C (@code{vcc}). It produces incorrect code | |
3690 | in some cases (for example, when @code{alloca} is used). | |
3691 | ||
3692 | @html | |
3693 | </p> | |
3694 | <hr> | |
3695 | @end html | |
3696 | @heading @anchor{we32k-*-*}we32k-*-* | |
3697 | These computers are also known as the 3b2, 3b5, 3b20 and other similar | |
3698 | names. (However, the 3b1 is actually a 68000.) | |
3699 | These configurations are obsoleted in GCC 3.1. | |
3700 | ||
3701 | Don't use @option{-g} when compiling with the system's compiler. The | |
3702 | system's linker seems to be unable to handle such a large program with | |
3703 | debugging information. | |
3704 | ||
3705 | The system's compiler runs out of capacity when compiling @file{stmt.c} | |
3706 | in GCC@. You can work around this by building @file{cpp} in GCC | |
3707 | first, then use that instead of the system's preprocessor with the | |
3708 | system's C compiler to compile @file{stmt.c}. Here is how: | |
3709 | ||
3710 | @smallexample | |
3711 | mv /lib/cpp /lib/cpp.att | |
3712 | cp cpp /lib/cpp.gnu | |
3713 | echo '/lib/cpp.gnu -traditional $@{1+"$@@"@}' > /lib/cpp | |
3714 | chmod +x /lib/cpp | |
3715 | @end smallexample | |
3716 | ||
3717 | The system's compiler produces bad code for some of the GCC | |
3718 | optimization files. So you must build the stage 2 compiler without | |
3719 | optimization. Then build a stage 3 compiler with optimization. | |
3720 | That executable should work. Here are the necessary commands: | |
3721 | ||
3722 | @smallexample | |
3723 | make LANGUAGES=c CC=stage1/xgcc CFLAGS="-Bstage1/ -g" | |
3724 | make stage2 | |
3725 | make CC=stage2/xgcc CFLAGS="-Bstage2/ -g -O" | |
3726 | @end smallexample | |
3727 | ||
3728 | You may need to raise the ULIMIT setting to build a C++ compiler, | |
3729 | as the file @file{cc1plus} is larger than one megabyte. | |
3730 | ||
3731 | @html | |
3732 | </p> | |
3733 | <hr> | |
3734 | @end html | |
3735 | @heading @anchor{xtensa-*-elf}xtensa-*-elf | |
3736 | ||
3737 | This target is intended for embedded Xtensa systems using the | |
3738 | @samp{newlib} C library. It uses ELF but does not support shared | |
3739 | objects. Designed-defined instructions specified via the | |
3740 | Tensilica Instruction Extension (TIE) language are only supported | |
3741 | through inline assembly. | |
3742 | ||
3743 | The Xtensa configuration information must be specified prior to | |
3744 | building GCC@. The @file{gcc/config/xtensa/xtensa-config.h} header | |
3745 | file contains the configuration information. If you created your | |
3746 | own Xtensa configuration with the Xtensa Processor Generator, the | |
3747 | downloaded files include a customized copy of this header file, | |
3748 | which you can use to replace the default header file. | |
3749 | ||
3750 | @html | |
3751 | </p> | |
3752 | <hr> | |
3753 | @end html | |
3754 | @heading @anchor{xtensa-*-linux*}xtensa-*-linux* | |
3755 | ||
3756 | This target is for Xtensa systems running GNU/Linux. It supports ELF | |
3757 | shared objects and the GNU C library (glibc). It also generates | |
3758 | position-independent code (PIC) regardless of whether the | |
3759 | @option{-fpic} or @option{-fPIC} options are used. In other | |
3760 | respects, this target is the same as the | |
3761 | @uref{#xtensa-*-elf,,@samp{xtensa-*-elf}} target. | |
3762 | ||
3763 | @html | |
3764 | </p> | |
3765 | <hr> | |
3766 | @end html | |
3767 | @heading @anchor{windows}Microsoft Windows (32 bit) | |
3768 | ||
3769 | A port of GCC 2.95.x is included with the | |
3770 | @uref{http://www.cygwin.com/,,Cygwin environment}. | |
3771 | ||
3772 | Current (as of early 2001) snapshots of GCC will build under Cygwin | |
3773 | without modification. | |
3774 | ||
3775 | @html | |
3776 | </p> | |
3777 | <hr> | |
3778 | @end html | |
3779 | @heading @anchor{os2}OS/2 | |
3780 | ||
3781 | GCC does not currently support OS/2. However, Andrew Zabolotny has been | |
3782 | working on a generic OS/2 port with pgcc. The current code can be found | |
3783 | at @uref{http://www.goof.com/pcg/os2/,,http://www.goof.com/pcg/os2/}. | |
3784 | ||
3785 | An older copy of GCC 2.8.1 is included with the EMX tools available at | |
3786 | @uref{ftp://ftp.leo.org/pub/comp/os/os2/leo/devtools/emx+gcc/,, | |
3787 | ftp://ftp.leo.org/pub/comp/os/os2/leo/devtools/emx+gcc/}. | |
3788 | ||
3789 | @html | |
3790 | </p> | |
3791 | <hr> | |
3792 | @end html | |
3793 | @heading @anchor{older}Older systems | |
3794 | ||
3795 | GCC contains support files for many older (1980s and early | |
3796 | 1990s) Unix variants. For the most part, support for these systems | |
3797 | has not been deliberately removed, but it has not been maintained for | |
3798 | several years and may suffer from bitrot. Support from some systems | |
3799 | has been removed from GCC 3: fx80, ns32-ns-genix, pyramid, tahoe, | |
3800 | gmicro, spur; most of these targets had not been updated since GCC | |
3801 | version 1. | |
3802 | ||
3803 | We are planning to remove support for more older systems, starting in | |
3804 | GCC 3.1. Each release will have a list of ``obsoleted'' systems. | |
3805 | Support for these systems is still present in that release, but | |
3806 | @command{configure} will fail unless the @option{--enable-obsolete} | |
3807 | option is given. Unless a maintainer steps forward, support for | |
3808 | these systems will be removed from the next release of GCC@. | |
3809 | ||
3810 | Support for older systems as targets for cross-compilation is less | |
3811 | problematic than support for them as hosts for GCC; if an enthusiast | |
3812 | wishes to make such a target work again (including resurrecting any | |
3813 | of the targets that never worked with GCC 2, starting from the last | |
3814 | CVS version before they were removed), patches | |
3815 | @uref{../contribute.html,,following the usual requirements} | |
3816 | would be likely to be accepted, since they should not affect the | |
3817 | support for more modern targets. | |
3818 | ||
3819 | Support for old systems as hosts for GCC can cause problems if the | |
3820 | workarounds for compiler, library and operating system bugs affect the | |
3821 | cleanliness or maintainability of the rest of GCC@. In some cases, to | |
3822 | bring GCC up on such a system, if still possible with current GCC, may | |
3823 | require first installing an old version of GCC which did work on that | |
3824 | system, and using it to compile a more recent GCC, to avoid bugs in | |
3825 | the vendor compiler. Old releases of GCC 1 and GCC 2 are available in | |
3826 | the @file{old-releases} directory on the | |
3827 | @uref{../mirrors.html,,GCC mirror sites}. Header bugs may generally | |
3828 | be avoided using @command{fixincludes}, but bugs or deficiencies in | |
3829 | libraries and the operating system may still cause problems. | |
3830 | ||
3831 | For some systems, old versions of GNU binutils may also be useful, | |
3832 | and are available from @file{pub/binutils/old-releases} on | |
3833 | @uref{http://sources.redhat.com/mirrors.html,,sources.redhat.com mirror sites}. | |
3834 | ||
3835 | Some of the information on specific systems above relates to | |
3836 | such older systems, but much of the information | |
3837 | about GCC on such systems (which may no longer be applicable to | |
3838 | current GCC) is to be found in the GCC texinfo manual. | |
3839 | ||
3840 | @html | |
3841 | </p> | |
3842 | <hr> | |
3843 | @end html | |
3844 | @heading @anchor{elf_targets}all ELF targets (SVR4, Solaris 2, etc.) | |
3845 | ||
3846 | C++ support is significantly better on ELF targets if you use the | |
3847 | @uref{./configure.html#with-gnu-ld,,GNU linker}; duplicate copies of | |
3848 | inlines, vtables and template instantiations will be discarded | |
3849 | automatically. | |
3850 | ||
3851 | ||
3852 | @html | |
3853 | </p> | |
3854 | <hr> | |
3855 | <p> | |
3856 | @end html | |
3857 | @ifhtml | |
3858 | @uref{./index.html,,Return to the GCC Installation page} | |
3859 | @end ifhtml | |
3860 | @end ifset | |
3861 | ||
3862 | @c ***Old documentation****************************************************** | |
3863 | @ifset oldhtml | |
3864 | @include install-old.texi | |
3865 | @html | |
3866 | </p> | |
3867 | <hr> | |
3868 | <p> | |
3869 | @end html | |
3870 | @ifhtml | |
3871 | @uref{./index.html,,Return to the GCC Installation page} | |
3872 | @end ifhtml | |
3873 | @end ifset | |
3874 | ||
3875 | @c ***GFDL******************************************************************** | |
3876 | @ifset gfdlhtml | |
3877 | @include fdl.texi | |
3878 | @html | |
3879 | </p> | |
3880 | <hr> | |
3881 | <p> | |
3882 | @end html | |
3883 | @ifhtml | |
3884 | @uref{./index.html,,Return to the GCC Installation page} | |
3885 | @end ifhtml | |
3886 | @end ifset | |
3887 | ||
3888 | @c *************************************************************************** | |
3889 | @c Part 6 The End of the Document | |
3890 | @ifinfo | |
3891 | @comment node-name, next, previous, up | |
3892 | @node Concept Index, , GNU Free Documentation License, Top | |
3893 | @end ifinfo | |
3894 | ||
3895 | @ifinfo | |
3896 | @unnumbered Concept Index | |
3897 | ||
3898 | @printindex cp | |
3899 | ||
3900 | @contents | |
3901 | @end ifinfo | |
3902 | @bye |