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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 | ||
e6855a2d | 36 | @comment $Id: install.texi,v 1.2 2001/05/16 14:57:06 dje Exp $ |
f42974dc DW |
37 | @c Copyright (C) 2001 Free Software Foundation, Inc. |
38 | @c *** Converted to texinfo by Dean Wakerley, dean@wakerley.com | |
39 | ||
40 | @c Include everything if we're not making html | |
41 | @ifnothtml | |
42 | @set indexhtml | |
43 | @set specifichtml | |
44 | @set downloadhtml | |
45 | @set configurehtml | |
46 | @set buildhtml | |
47 | @set testhtml | |
48 | @set finalinstallhtml | |
49 | @set binarieshtml | |
50 | @end ifnothtml | |
51 | ||
52 | @c Part 2 Summary Description and Copyright | |
53 | @ifinfo | |
54 | ||
55 | Copyright @copyright{} 2001 Free Software Foundation, Inc. | |
56 | @end ifinfo | |
57 | ||
58 | @c Part 3 Titlepage and Copyright | |
59 | @titlepage | |
60 | @sp 10 | |
61 | @comment The title is printed in a large font. | |
62 | @center @titlefont{Sample Title} | |
63 | ||
64 | @c The following two commands start the copyright page. | |
65 | @page | |
66 | vskip 0pt plus 1filll | |
67 | Copyright @copyright{} 2001 Free Software Foundation, Inc. | |
68 | @end titlepage | |
69 | ||
70 | @c Part 4 Top node and Master Menu | |
71 | @ifinfo | |
72 | @node Top, , , (dir) | |
73 | @comment node-name, next, Previous, up | |
74 | ||
75 | @menu | |
76 | * Installing GCC:: This document describes the generic installation | |
77 | procedure for GCC as well as detailing some target | |
78 | specific installation instructions. | |
79 | ||
80 | * Specific:: Host/target specific installation notes for GCC. | |
81 | * Binaries:: Where to get pre-compiled binaries. | |
82 | ||
83 | * Concept Index:: This index has two entries. | |
84 | @end menu | |
85 | @end ifinfo | |
86 | ||
87 | @c Part 5 The Body of the Document | |
88 | @c ***Installing GCC********************************************************** | |
89 | @ifinfo | |
90 | @comment node-name, next, previous, up | |
91 | @node Installing GCC, Binaries, , Top | |
92 | @end ifinfo | |
93 | @ifset indexhtml | |
94 | @html | |
95 | <h1 align="center">Installing GCC</h1> | |
96 | @end html | |
97 | @ifnothtml | |
98 | @chapter Installing GCC | |
99 | @end ifnothtml | |
100 | ||
101 | The latest version of this document is always available at | |
102 | @uref{http://gcc.gnu.org/install/,,http://gcc.gnu.org/install/}. | |
103 | ||
104 | This document describes the generic installation procedure for GCC as well | |
105 | as detailing some target specific installation instructions. | |
106 | ||
107 | GCC includes several components that previously were separate distributions | |
108 | with their own installation instructions. This document supersedes all | |
109 | package specific installation instructions. We provide the component | |
110 | specific installation information in the source distribution for historical | |
111 | reference purposes only. | |
112 | ||
113 | @emph{Before} starting the build/install procedure please check the | |
114 | @ifnothtml | |
115 | @xref{Specific, host/target specific installation notes}. | |
116 | @end ifnothtml | |
117 | @ifnotinfo | |
118 | @uref{specific.html,,host/target specific installation notes}. | |
119 | @end ifnotinfo | |
120 | We recommend you browse the entire generic installation instructions before | |
121 | you proceed. | |
122 | ||
123 | The installation procedure itself is broken into five steps. | |
124 | ||
125 | @ifinfo | |
126 | @menu | |
127 | * Downloading the source:: | |
128 | * Configuration:: | |
129 | * Building:: | |
130 | * Testing:: (optional) | |
131 | * Final install:: | |
132 | @end menu | |
133 | @end ifinfo | |
134 | @ifnotinfo | |
135 | @enumerate | |
136 | @item | |
137 | @uref{download.html,,Downloading the source} | |
138 | @item | |
139 | @uref{configure.html,,Configuration} | |
140 | @item | |
141 | @uref{build.html,,Building} | |
142 | @item | |
143 | @uref{test.html,,Testing} (optional) | |
144 | @item | |
145 | @uref{finalinstall.html,,Final install} | |
146 | @end enumerate | |
147 | @end ifnotinfo | |
148 | ||
149 | Please note that GCC does not support `@code{make uninstall}' and probably | |
150 | won't do so in the near future as this would open a can of worms. Instead, | |
151 | we suggest that you install GCC into a directory of its own and simply | |
152 | remove that directory when you do not need that specific version of GCC any longer. | |
153 | ||
154 | @html | |
155 | <hr> | |
156 | <p> | |
157 | @end html | |
158 | @ifhtml | |
159 | @uref{./index.html,,Return to the GCC Installation page} | |
160 | @end ifhtml | |
161 | @end ifset | |
162 | ||
163 | @c ***Downloading the source************************************************** | |
164 | @ifinfo | |
165 | @comment node-name, next, previous, up | |
166 | @node Downloading the source, Configuration, , Installing GCC | |
167 | @end ifinfo | |
168 | @ifset downloadhtml | |
169 | @html | |
170 | <h1 align="center">Downloading GCC</h1> | |
171 | @end html | |
172 | @ifnothtml | |
173 | @chapter Downloading GCC | |
174 | @end ifnothtml | |
175 | @cindex Downloading GCC | |
176 | @cindex Downloading the Source | |
177 | ||
178 | GCC is distributed via CVS and FTP tarballs compressed with gzip or | |
179 | bzip2. It is possible to download a full distribution or specific | |
180 | components. | |
181 | ||
182 | Please refer to our @uref{http://gcc.gnu.org/releases.html,,releases web page} | |
183 | for information on how to obtain GCC. | |
184 | ||
185 | The full distribution includes the C, C++, Objective-C, Fortran, Java, | |
186 | and Chill compilers. The full distribution also includes runtime libraries | |
187 | for C++, Objective-C and Fortran. In the future the GNU compiler testsuites | |
188 | will be included in the full distribution. | |
189 | ||
190 | If you choose to download specific components, you must download the core | |
191 | gcc distribution plus any language specific distributions you wish to | |
192 | use. The core distribution includes the C language front-end as well as the | |
193 | shared components. Each language has a tarball which includes the language | |
194 | front-end as well as the language runtime (when appropriate). | |
195 | ||
196 | Unpack the core distribution as well as any language specific | |
197 | distributions in the same directory. | |
198 | ||
199 | If you also intend to build binutils (either to upgrade an existing | |
200 | installation or for use in place of the corresponding tools of your | |
201 | OS), unpack the binutils distribution either in the same directory or | |
202 | a separate one. In the latter case, add symbolic links to any | |
203 | components of the binutils you intend to build alongside the compiler | |
204 | (bfd, binutils, gas, gprof, ld, opcodes,...) to the directory containing | |
205 | the GCC sources. | |
206 | ||
207 | @html | |
208 | <hr> | |
209 | <p> | |
210 | @end html | |
211 | @ifhtml | |
212 | @uref{./index.html,,Return to the GCC Installation page} | |
213 | @end ifhtml | |
214 | @end ifset | |
215 | ||
216 | @c ***Configuration*********************************************************** | |
217 | @ifinfo | |
218 | @comment node-name, next, previous, up | |
219 | @node Configuration, Building, Downloading the source, Installing GCC | |
220 | @end ifinfo | |
221 | @ifset configurehtml | |
222 | @html | |
223 | <h1 align="center">Installing GCC: Configuration</h1> | |
224 | @end html | |
225 | @ifnothtml | |
226 | @chapter Installing GCC: Configuration | |
227 | @end ifnothtml | |
228 | @cindex Configuration | |
229 | @cindex Installing GCC: Configuration | |
230 | ||
231 | Like most GNU software, GCC must be configured before it can be built. | |
232 | This document describes the recommended configuration procedure | |
233 | for both native and cross targets. | |
234 | ||
235 | We use @emph{srcdir} to refer to the toplevel source directory for | |
236 | GCC; we use @emph{objdir} to refer to the toplevel build/object directory. | |
237 | ||
238 | First, we @strong{highly} recommend that GCC be built into a | |
239 | separate directory than the sources which does @strong{not} reside | |
240 | within the source tree. This is how we generally build GCC; building | |
241 | where @emph{srcdir} == @emph{objdir} should still work, but doesn't | |
242 | get extensive testing; building where @emph{objdir} is a subdirectory | |
243 | of @emph{srcdir} is unsupported. | |
244 | ||
df002c7d DE |
245 | Second, when configuring a native system, either ``@command{cc}'' or |
246 | ``@command{gcc}'' must be in your path or you must set @command{CC} in | |
247 | your environment before running configure. Otherwise the configuration | |
248 | scripts may fail. | |
f42974dc DW |
249 | |
250 | To configure GCC: | |
251 | ||
252 | @example | |
253 | % mkdir @emph{objdir} | |
254 | % cd @emph{objdir} | |
255 | % @emph{srcdir}/configure @strong{[target] [options]} | |
256 | @end example | |
257 | ||
258 | ||
259 | @strong{target specification} | |
260 | @itemize @bullet | |
261 | @item | |
262 | GCC has code to correctly determine the correct value for @strong{target} | |
263 | for nearly all native systems. Therefore, we highly recommend you not | |
264 | provide a configure target when configuring a native compiler. | |
265 | ||
266 | @item | |
267 | @strong{target} must be specified as @option{--target=}@emph{target} | |
268 | when configuring a cross compiler; examples of valid targets would be | |
269 | i960-rtems, m68k-coff, sh-elf, etc. | |
270 | ||
271 | @item | |
272 | Specifying just @strong{target} instead of @option{--target=}@emph{target} | |
273 | implies that the host defaults to @strong{target}. | |
274 | @end itemize | |
275 | ||
276 | ||
277 | @strong{options specification} | |
278 | ||
279 | Use @strong{options} to override several configure time options for | |
280 | GCC. A partial list of supported @option{options}: | |
281 | ||
282 | @itemize @bullet | |
283 | @item | |
284 | @option{--prefix=}@emph{dirname} @minus{}@minus{} Specify the toplevel installation | |
285 | directory. This is the recommended way to install the tools into a directory | |
286 | other than the default. The toplevel installation directory defaults to | |
287 | @code{/usr/local}. | |
288 | ||
289 | We @strong{highly} recommend against @emph{dirname} being the same or a | |
290 | subdirectory of @emph{objdir} or vice versa. | |
291 | ||
292 | These additional options control where certain parts of the distribution | |
293 | are installed. Normally you should not need to use these options. | |
294 | @itemize @bullet | |
295 | @item | |
296 | @option{--with-local-prefix=}@emph{dirname} @minus{}@minus{} Specify the installation | |
297 | directory for local include files. The default is @code{/usr/local}. | |
298 | ||
299 | @item | |
300 | @option{--with-gxx-include-dir=}@emph{dirname} @minus{}@minus{} Specify the installation | |
301 | directory for g++ header files. The default is @command{/usr/local/include/g++}. | |
302 | ||
303 | @end itemize | |
304 | ||
305 | @item | |
306 | @option{--enable-shared} @minus{}@minus{} Build shared versions of the C++ runtime | |
307 | libraries if supported. This is the default on most systems. Use @option{--disable-shared} | |
308 | for static libraries. Note that up to the gcc version 2.95.x series, static | |
309 | libraries were the default on all systems. | |
310 | ||
311 | @item | |
312 | @option{--with-gnu-as} @minus{}@minus{} Specify that the compiler should assume that the | |
313 | assembler it finds is the GNU assembler. However, this does not modify the rules to find an | |
314 | assembler and will result in confusion if found assembler is not actually the GNU assembler. | |
315 | If you have more than one assembler installed on your system, you may want to use this option | |
316 | in connection with @option{--with-as=/path/to/gas}. | |
317 | ||
318 | @item | |
319 | @option{--with-as=@emph{/path/to/as}} @minus{}@minus{} Specify that the compiler should use the | |
320 | assembler pointed to by @emph{pathname}, rather than the one found by the standard rules to | |
321 | find an assembler, which are: | |
322 | @itemize @bullet | |
323 | @item | |
324 | Check the @emph{$exec_prefix/lib/gcc-lib/$target/$version} directory, where @emph{$exec_prefix} | |
325 | defaults to @emph{$prefix} which defaults to @file{/usr/local} unless overridden by the | |
326 | @option{--prefix=/pathname} switch described above. @emph{$target} is the target system triple, | |
327 | such as @emph{sparc-sun-solaris2.7}, and @emph{$version} denotes the GCC version, such as 2.95.2. | |
328 | @item | |
329 | Check operating system specific directories (e.g. @file{/usr/ccs/bin} on Sun Solaris). | |
330 | @end itemize | |
331 | Note that these rules do not check for the value of @emph{$PATH}. You may want to use | |
332 | @option{--with-as} if no assembler is installed in the directories listed above, or if you have | |
333 | multiple assemblers installed and want to choose one that is not found by the above rules. | |
334 | ||
335 | @item | |
336 | @option{--with-gnu-ld} @minus{}@minus{} Same as @option{--with-gnu-as} but for linker. | |
337 | ||
338 | @item | |
339 | @option{--with-ld=@emph{/path/to/ld}} @minus{}@minus{} Same as @option{--with-as}, but for the | |
340 | linker. | |
341 | ||
342 | @item | |
343 | @option{--with-stabs} @minus{}@minus{} Specify that stabs debugging information should be used | |
344 | instead of whatever format the host normally uses. Normally GCC uses the | |
345 | same debug format as the host system. | |
346 | ||
347 | @item | |
348 | @option{--enable-multilib} @minus{}@minus{} Specify that multiple target libraries | |
349 | should be built to support different target variants, calling conventions, | |
350 | etc. This is the default. | |
351 | ||
352 | @item | |
353 | @option{--enable-threads} @minus{}@minus{} Specify that the target supports threads. | |
354 | This affects the Objective-C compiler and runtime library, and exception | |
355 | handling for other languages like C++ and Java. | |
356 | ||
357 | @item | |
358 | @option{--enable-threads=}@emph{lib} @minus{}@minus{} Specify that @emph{lib} is the thread | |
359 | support library. This affects the Objective-C compiler and runtime library, | |
360 | and exception handling for other languages like C++ and Java. | |
361 | ||
362 | @item | |
363 | @option{--with-cpu=}@emph{cpu} @minus{}@minus{} Specify which cpu variant the | |
364 | compiler should generate code for by default. This is currently | |
365 | only supported on the some ports, specifically arm, powerpc, and | |
366 | SPARC. If configure does not recognize the model name (e.g. arm700, | |
367 | 603e, or ultrasparc) you provide, please check the configure script | |
368 | for a complete list of supported models. | |
369 | ||
370 | @item | |
371 | @option{--enable-target-optspace} @minus{}@minus{} Specify that target libraries | |
372 | should be optimized for code space instead of code speed. This is the | |
373 | default for the m32r platform. | |
374 | ||
375 | @item | |
376 | @option{--enable-cpp} @minus{}@minus{} Specify that a shell script which emulates | |
377 | traditional cpp functionality should be installed. | |
378 | ||
379 | @item | |
380 | @option{--enable-cpplib} @minus{}@minus{} Specify that the functionality of | |
381 | CPP should be integrated into the compiler itself. This option is | |
382 | not supported by snapshots since November 2000. In snapshots where | |
383 | it is supported, it is not enabled by default, except for snapshots | |
384 | very close to November 2000. | |
385 | ||
386 | @item | |
387 | @option{--without-fast-fixincludes} @minus{}@minus{} Specify that the old, slower | |
388 | method of fixing the system header files should be used. | |
389 | EGCS 1.1.x and older releases default to the slow version. GCC 2.95 and | |
390 | newer releases will default to the fast version. | |
391 | ||
392 | @item | |
393 | @option{--enable-version-specific-runtime-libs} @minus{}@minus{} Specify that runtime | |
394 | libraries should be installed in the compiler specific subdirectory | |
395 | (@option{$@{libsubdir@}}) rather than the usual places. | |
396 | In addition, libstdc++'s include files will be installed in | |
397 | @option{$@{libsubdir@}/include/g++} unless you overruled it by using | |
398 | @option{--with-gxx-include-dir=}@emph{dirname}. | |
399 | Using this option is particularly useful if you intend to use several | |
400 | versions of GCC in parallel. This is currently supported by @option{libf2c} | |
401 | and @option{libstdc++}. | |
402 | ||
403 | @item | |
404 | @option{--enable-languages=}@emph{lang1}@option{,}@emph{lang2}@option{,...} | |
405 | @minus{}@minus{} Specify that only a particular subset of compilers and their runtime libraries | |
406 | should be built. For a list of valid values for @emph{lang}@option{x} you can issue | |
407 | the following command in the @option{gcc} directory of your GCC source tree:@* | |
408 | @command{grep language= */config-lang.in}@* | |
409 | Currently, you can use any of the following: @code{c++}, @code{f77}, @code{java} and @code{objc}. | |
410 | @code{CHILL} is not currently maintained, and will almost | |
411 | certainly fail to compile. Note that this switch does not work with | |
412 | EGCS 1.1.2 or older versions of egcs. It is supported in GCC 2.95 | |
413 | and newer versions.@* | |
414 | If you do not pass this flag, all languages available in the @code{gcc} sub-tree | |
415 | will be configured. Re-defining LANGUAGES when calling @command{make bootstrap} | |
416 | @strong{*does not*} work anymore, as those language sub-directories might not have been | |
417 | configured! | |
418 | ||
419 | @item | |
420 | @option{--disable-libgcj} @minus{}@minus{} Specify that the run-time libraries | |
421 | used by GCJ should not be built. This is useful in case you intend | |
422 | to use GCJ with some other run-time, or you're going to install it | |
423 | separately, or it just happens not to build on your particular | |
424 | machine. In general, if the Java front-end is enabled, the GCJ | |
425 | libraries will be enabled too, unless they're known to not work on | |
426 | the target platform. If GCJ is enabled but libgcj isn't built, you | |
427 | may need to port it; in this case, before modifying the top-level | |
428 | configure.in so that libgcj is enabled by default on this platform, | |
429 | you may use @option{--enable-libgcj} to override the default. | |
430 | ||
431 | @item | |
432 | @option{--with-dwarf2} @minus{}@minus{} Specify that the compiler should use DWARF2 | |
433 | debugging information as the default. | |
434 | @end itemize | |
435 | ||
436 | Some options which only apply to building cross compilers: | |
437 | @itemize @bullet | |
438 | @item | |
439 | @option{--with-headers=}@emph{dir} @minus{}@minus{} Specifies a directory which has | |
440 | target include files. | |
441 | @emph{This options is required} when building a cross | |
442 | compiler, if @code{$@{prefix@}/$@{target@}/sys-include} doesn't pre-exist. | |
443 | These include files will be copied into the @code{gcc} install directory. | |
444 | Fixincludes will be run on these files to make them compatible with @command{gcc}. | |
445 | @item | |
446 | @option{--with-libs=}@emph{``dir1 dir2 ... dirN''} @minus{}@minus{} Specifies a list of | |
447 | directories which contain the target runtime libraries. These libraries will | |
448 | be copied into the @code{gcc} install directory. | |
449 | @item | |
450 | @option{--with-newlib} @minus{}@minus{} Specifies that ``newlib'' is being used as the target | |
451 | C library. This causes @code{__eprintf} to be omitted from libgcc.a on the | |
452 | assumption that it will be provided by newlib. | |
453 | @end itemize | |
454 | ||
455 | Note that each @option{--enable} option has a corresponding @option{--disable} option and | |
456 | that each @option{--with} option has a corresponding @option{--without} option. | |
457 | ||
458 | @html | |
459 | <hr> | |
460 | <p> | |
461 | @end html | |
462 | @ifhtml | |
463 | @uref{./index.html,,Return to the GCC Installation page} | |
464 | @end ifhtml | |
465 | @end ifset | |
466 | ||
467 | @c ***Building**************************************************************** | |
468 | @ifinfo | |
469 | @comment node-name, next, previous, up | |
470 | @node Building, Testing, Configuration, Installing GCC | |
471 | @end ifinfo | |
472 | @ifset buildhtml | |
473 | @html | |
474 | <h1 align="center">Installing GCC: Building</h1> | |
475 | @end html | |
476 | @ifnothtml | |
477 | @chapter Building | |
478 | @end ifnothtml | |
479 | @cindex Installing GCC: Building | |
480 | ||
481 | Now that GCC is configured, you are ready to build the compiler and | |
482 | runtime libraries. | |
483 | ||
484 | We @strong{highly} recommend that GCC be built using GNU make; | |
485 | other versions may work, then again they might not. | |
486 | ||
487 | (For example, many broken versions of make will fail if you use the | |
488 | recommended setup where @emph{objdir} is different from @emph{srcdir}.) | |
489 | ||
490 | ||
491 | @section Building a native compiler | |
492 | ||
493 | For a native build issue the command `@code{make bootstrap}'. This | |
494 | will build the entire GCC system, which includes the following steps: | |
495 | ||
496 | @itemize @bullet | |
497 | @item | |
498 | Build host tools necessary to build the compiler such as texinfo, bison, | |
499 | gperf. | |
500 | ||
501 | @item | |
502 | Build target tools for use by the compiler such as binutils (bfd, | |
503 | binutils, gas, gprof, ld, and opcodes)@* | |
504 | if they have been individually linked | |
505 | or moved into the top level GCC source tree before configuring. | |
506 | ||
507 | @item | |
508 | Perform a 3-stage bootstrap of the compiler. | |
509 | ||
510 | @item | |
511 | Perform a comparison test of the stage2 and stage3 compilers. | |
512 | ||
513 | @item | |
514 | Build runtime libraries using the stage3 compiler from the previous step. | |
515 | ||
516 | @end itemize | |
517 | ||
518 | If you are short on disk space you might consider `@code{make | |
519 | bootstrap-lean}' instead. This is identical to `@code{make | |
520 | bootstrap}' except that object files from the stage1 and | |
521 | stage2 of the 3-stage bootstrap of the compiler are deleted as | |
522 | soon as they are no longer needed. | |
523 | ||
524 | ||
525 | If you want to save additional space during the bootstrap and in | |
526 | the final installation as well, you can build the compiler binaries | |
527 | without debugging information with ``@code{make CFLAGS='-O' LIBCFLAGS='-g | |
528 | -O2' LIBCXXFLAGS='-g -O2 -fno-implicit-templates' bootstrap}''. This will save | |
529 | roughly 40% of disk space both for the bootstrap and the final installation. | |
530 | (Libraries will still contain debugging information.) | |
531 | ||
532 | If you used the flag @code{--enable-languages=...} to restrict | |
533 | the compilers to be built, only those you've actually enabled will be | |
534 | built. This will of course only build those runtime libraries, for | |
535 | which the particular compiler has been built. Please note, | |
536 | that re-defining LANGUAGES when calling `@code{make bootstrap}' | |
537 | @strong{*does not*} work anymore! | |
538 | ||
539 | ||
540 | @section Building a cross compiler | |
541 | ||
542 | We recommend reading the | |
543 | @uref{http://www.objsw.com/CrossGCC/,,crossgcc FAQ} | |
544 | for information about building cross compilers. | |
545 | ||
546 | When building a cross compiler, it is not generally possible to do a | |
547 | 3-stage bootstrap of the compiler. This makes for an interesting problem | |
548 | as parts of GCC can only be built with GCC. | |
549 | ||
550 | To build a cross compiler, we first recommend building and installing a | |
551 | native compiler. You can then use the native GCC compiler to build the | |
552 | cross compiler. | |
553 | ||
554 | Assuming you have already installed a native copy of GCC and configured | |
555 | your cross compiler, issue the command `@code{make}', which performs the | |
556 | following steps: | |
557 | ||
558 | @itemize @bullet | |
559 | @item | |
560 | Build host tools necessary to build the compiler such as texinfo, bison, | |
561 | gperf. | |
562 | ||
563 | @item | |
564 | Build target tools for use by the compiler such as binutils (bfd, | |
565 | binutils, gas, gprof, ld, and opcodes) | |
566 | if they have been individually linked or moved into the top level GCC source | |
567 | tree before configuring. | |
568 | ||
569 | @item | |
570 | Build the compiler (single stage only). | |
571 | ||
572 | @item | |
573 | Build runtime libraries using the compiler from the previous step. | |
574 | @end itemize | |
575 | ||
576 | Note that if an error occurs in any step the make process will exit. | |
577 | ||
578 | @section Building in parallel | |
579 | ||
580 | If you have a multiprocessor system you can use `@code{make bootstrap | |
581 | MAKE="make -j 2" -j 2}' or just `@code{make -j 2 bootstrap}' | |
582 | for GNU Make 3.79 and above instead of just `@code{make bootstrap}' | |
583 | when building GCC. You can use a bigger number instead of two if | |
584 | you like. In most cases, it won't help to use a number bigger than | |
585 | the number of processors in your machine. | |
586 | ||
587 | @html | |
588 | <hr> | |
589 | <p> | |
590 | @end html | |
591 | @ifhtml | |
592 | @uref{./index.html,,Return to the GCC Installation page} | |
593 | @end ifhtml | |
594 | @end ifset | |
595 | ||
596 | @c ***Testing***************************************************************** | |
597 | @ifinfo | |
598 | @comment node-name, next, previous, up | |
599 | @node Testing, Final install, Building, Installing GCC | |
600 | @end ifinfo | |
601 | @ifset testhtml | |
602 | @html | |
603 | <h1 align="center">Installing GCC: Testing</h1> | |
604 | @end html | |
605 | @ifnothtml | |
606 | @chapter Installing GCC: Testing | |
607 | @end ifnothtml | |
608 | @cindex Testing | |
609 | @cindex Installing GCC: Testing | |
610 | @cindex Testsuite | |
611 | ||
612 | @strong{Please note that this is only applicable | |
613 | to current development versions of GCC and GCC 3.0 or later. | |
614 | GCC 2.95.x does not come with a testsuite.} | |
615 | ||
616 | Before you install GCC, you might wish to run the testsuite. This | |
617 | step is optional and may require you to download additional software. | |
618 | ||
619 | First, you must have @uref{download.html,,downloaded the testsuites}. | |
620 | The full distribution contains testsuites; only if you downloaded the | |
621 | ``core'' compiler plus any front ends, you do not have the testsuites. | |
622 | ||
623 | Second, you must have a @uref{http://www.gnu.org/software/dejagnu/,,current version of DejaGnu} installed; | |
624 | dejagnu 1.3 is not sufficient. | |
625 | ||
626 | Now you may need specific preparations: | |
627 | ||
628 | @itemize @bullet | |
629 | @item | |
630 | In order to run the libio tests on targets which do not fully | |
631 | support Unix/POSIX commands (e.g. Cygwin), the references to the dbz | |
632 | directory have to be deleted from @code{libio/configure.in}. | |
633 | ||
634 | @item | |
635 | The following environment variables must be set appropriately, as in | |
636 | the following example (which assumes that DejaGnu has been installed | |
637 | under @code{/usr/local}): | |
638 | ||
639 | @example | |
640 | TCL_LIBRARY = /usr/local/share/tcl8.0 | |
641 | DEJAGNULIBS = /usr/local/share/dejagnu | |
642 | @end example | |
643 | ||
644 | On systems such as Cygwin, these paths are required to be actual | |
645 | paths, not mounts or links; presumably this is due to some lack of | |
646 | portability in the DejaGnu code. | |
647 | ||
648 | @end itemize | |
649 | ||
650 | Finally, you can run the testsuite (which may take a long time): | |
651 | @example | |
652 | cd @emph{objdir}; make -k check | |
653 | @end example | |
654 | ||
655 | The testing process will try to test as many components in the GCC | |
656 | distribution as possible, including the C, C++ and Fortran compilers as | |
657 | well as the C++ runtime libraries. | |
658 | ||
659 | @section How can I run the test suite on selected tests? | |
660 | ||
661 | As a first possibility to cut down the number of tests that are run it is | |
662 | possible to use `@code{make check-gcc}' or `@code{make check-g++}' | |
663 | in the gcc subdirectory of the object directory. To further cut down the | |
664 | tests the following is possible: | |
665 | ||
666 | @example | |
667 | make check-gcc RUNTESTFLAGS="execute.exp <other options>" | |
668 | @end example | |
669 | ||
670 | This will run all gcc execute tests in the testsuite. | |
671 | ||
672 | @example | |
673 | make check-g++ RUNTESTFLAGS="old-deja.exp=9805* <other options>" | |
674 | @end example | |
675 | ||
676 | This will run the g++ "old-deja" tests in the testsuite where the filename | |
677 | matches 9805*. | |
678 | ||
679 | The *.exp files are located in the testsuite directories of the GCC | |
680 | source, the most important ones being compile.exp, execute.exp, dg.exp | |
681 | and old-deja.exp. To get a list of the possible *.exp files, pipe the | |
682 | output of `@code{make check}' into a file and look at the | |
683 | "@code{Running ... .exp}" lines. | |
684 | ||
685 | @section How to interpret test results | |
686 | ||
687 | After the testsuite has run you'll find various *.sum and *.log | |
688 | files in the testsuite subdirectories. The *.log files contain a | |
689 | detailed log of the compiler invocations and the corresponding | |
690 | results, the *.sum files summarize the results. These summaries list | |
691 | all the tests that have been run with a corresponding status code: | |
692 | ||
693 | @itemize @bullet | |
694 | @item | |
695 | PASS: the test passed as expected | |
696 | @item | |
697 | XPASS: the test unexpectedly passed | |
698 | @item | |
699 | FAIL: the test unexpectedly failed | |
700 | @item | |
701 | XFAIL: the test failed as expected | |
702 | @item | |
703 | UNSUPPORTED: the test is not supported on this platform | |
704 | @item | |
705 | ERROR: the testsuite detected an error | |
706 | @item | |
707 | WARNING: the testsuite detected a possible problem | |
708 | @end itemize | |
709 | ||
710 | It is normal for some tests to report unexpected failures. At the current time | |
711 | our testing harness does not allow fine grained control over whether or not a | |
712 | test is expected to fail. We expect to fix this problem in future releases. | |
713 | ||
714 | ||
715 | @section Submitting test results | |
716 | ||
717 | If you want to report the results to the GCC project, use the | |
718 | @code{contrib/test_summary} shell script. Start it in the @emph{objdir} with | |
719 | ||
720 | @example | |
721 | @emph{srcdir}/contrib/test_summary -p your_commentary.txt -m gcc-testresults@@gcc.gnu.org |sh | |
722 | @end example | |
723 | ||
724 | This script uses the @code{Mail} program to send the results, so | |
725 | make sure it is in your @env{PATH}. The file @file{your_commentary.txt} is | |
726 | prepended to the testsuite summary and should contain any special | |
727 | remarks you have on your results or your build environment. Please | |
728 | do not edit the testsuite result block or the subject line, as these | |
729 | messages are automatically parsed and presented at the | |
730 | @uref{http://gcc.gnu.org/testresults/,,GCC testresults} web | |
731 | page. Here you can also gather information on how specific tests | |
732 | behave on different platforms and compare them with your results. A | |
733 | few failing testcases are possible even on released versions and you | |
734 | should look here first if you think your results are unreasonable. | |
735 | ||
736 | @end ifset | |
737 | ||
738 | @c ***Final install*********************************************************** | |
739 | @ifinfo | |
740 | @comment node-name, next, previous, up | |
741 | @node Final install, , Testing, Installing GCC | |
742 | @end ifinfo | |
743 | @ifset finalinstallhtml | |
744 | @html | |
745 | <h1 align="center">Installing GCC: Final installation</h1> | |
746 | @end html | |
747 | @ifnothtml | |
748 | @chapter Installing GCC: Final installation | |
749 | @end ifnothtml | |
750 | ||
751 | Now that GCC has been built and tested, you can install it with | |
752 | `@command{cd @emph{objdir}; make install}' for a native compiler or | |
753 | `@command{cd @emph{objdir}; make install LANGUAGES="c c++"}' for | |
754 | a cross compiler (note installing cross compilers will be easier in the | |
755 | next release!). | |
756 | ||
757 | That step completes the installation of GCC; user level binaries can | |
758 | be found in @code{@emph{prefix}/bin} where @code{@emph{prefix}} is the value you specified | |
759 | with the @option{--prefix} to configure (or @file{/usr/local} by default). | |
760 | ||
761 | If you don't mind, please quickly review the | |
762 | @uref{http://gcc.gnu.org/gcc-2.95/buildstat.html,,build status page}. | |
763 | If your system is not listed, send a note to | |
764 | @uref{mailto:gcc@@gcc.gnu.org,,gcc@@gcc.gnu.org} indicating | |
765 | that you successfully built and installed GCC. | |
766 | ||
767 | Include the output from running @code{@emph{srcdir}/config.guess}. (Do not | |
768 | send us the config.guess file itself, just the output from running | |
769 | it!) | |
770 | ||
771 | If you find a bug, please report it following our | |
772 | @uref{../bugs.html,,bug reporting guidelines}. | |
773 | ||
774 | @html | |
775 | <hr> | |
776 | <p> | |
777 | @end html | |
778 | @ifhtml | |
779 | @uref{./index.html,,Return to the GCC Installation page} | |
780 | @end ifhtml | |
781 | @end ifset | |
782 | ||
783 | @c ***Binaries**************************************************************** | |
784 | @ifinfo | |
785 | @comment node-name, next, previous, up | |
786 | @node Binaries, Specific, Installing GCC, Top | |
787 | @end ifinfo | |
788 | @ifset binarieshtml | |
789 | @html | |
790 | <h1 align="center">Installing GCC: Binaries</h1> | |
791 | @end html | |
792 | @ifnothtml | |
793 | @chapter Installing GCC: Binaries | |
794 | @end ifnothtml | |
795 | @cindex Binaries | |
796 | @cindex Installing GCC: Binaries | |
797 | ||
798 | We are often asked about pre-compiled versions of GCC. While we cannot | |
799 | provide these for all platforms, below you'll find links to binaries for | |
800 | various platforms where creating them by yourself is not easy due to various | |
801 | reasons. | |
802 | ||
803 | Please note that we did not create these binaries, nor do we | |
804 | support them. If you have any problems installing them, please | |
805 | contact their makers. | |
806 | ||
807 | @itemize | |
808 | @item | |
df002c7d DE |
809 | AIX: |
810 | @itemize | |
811 | @item | |
812 | @uref{http://www-frec.bull.com/docs/download.htm,,Bull's Freeware and Shareware Archive for AIX}; | |
813 | ||
814 | @item | |
815 | @uref{http://aixpdlib.seas.ucla.edu,,UCLA Software Library for AIX}; | |
816 | @end itemize | |
f42974dc DW |
817 | |
818 | @item | |
819 | DOS - @uref{http://www.delorie.com/djgpp/,,DJGPP}; | |
820 | ||
821 | @item | |
822 | @uref{http://hpux.cae.wisc.edu/,,HP-UX Porting Center}; | |
823 | ||
824 | @item | |
825 | @uref{http://www.sco.com/skunkware/devtools/index.html#gcc,,SCO OpenServer/Unixware}; | |
826 | ||
827 | @item | |
828 | Solaris (SPARC, Intel) - @uref{http://www.sunfreeware.com/,,Sunfreeware}; | |
829 | ||
830 | @item | |
831 | SGI - @uref{http://freeware.sgi.com/,,SGI Freeware}; | |
832 | ||
833 | @item | |
834 | Windows 95, 98, and NT: | |
835 | @itemize | |
836 | @item | |
837 | The @uref{http://sources.redhat.com/cygwin/,,Cygwin} project; | |
838 | @item | |
839 | @uref{http://www.xraylith.wisc.edu/~khan/software/gnu-win32/,,GNU Win32} | |
840 | related projects by Mumit Khan. | |
841 | @end itemize | |
842 | ||
843 | @item | |
844 | @uref{ftp://ftp.thewrittenword.com/packages/free/by-name/gcc-2.95.2/,,The | |
845 | Written Word} offers binaries for Solaris 2.5.1, 2.6, 2.7/SPARC, 2.7/Intel, | |
846 | IRIX 6.2, 6.5, Digital UNIX 4.0D, HP-UX 10.20, and HP-UX 11.00. | |
847 | ||
848 | @item | |
849 | Hitachi H8/300[HS] - | |
850 | @uref{http://h8300-hms.sourceforge.net/,,GNU Development Tools for the | |
851 | Hitachi H8/300[HS] Series} | |
852 | ||
853 | @end itemize | |
854 | ||
855 | In addition to those specific offerings, you can get a binary | |
856 | distribution CD-ROM from the | |
857 | @uref{http://www.fsf.org/order/order.html,,Free Software Foundation}. | |
858 | It contains binaries for a number of platforms, and | |
859 | includes not only GCC, but other stuff as well. The current CD does | |
860 | not contain the latest version of GCC, but it should allow | |
861 | bootstrapping the compiler. An updated version of that disk is in the | |
862 | works. | |
863 | ||
864 | @html | |
865 | <hr> | |
866 | <p> | |
867 | @end html | |
868 | @ifhtml | |
869 | @uref{./index.html,,Return to the GCC Installation page} | |
870 | @end ifhtml | |
871 | @end ifset | |
872 | ||
873 | @c ***Specific**************************************************************** | |
874 | @ifinfo | |
875 | @comment node-name, next, previous, up | |
876 | @node Specific, Concept Index, Binaries, Top | |
877 | @end ifinfo | |
878 | @ifset specifichtml | |
879 | @html | |
880 | <h1 align="center">Host/target specific installation notes for GCC</h1> | |
881 | @end html | |
882 | @ifnothtml | |
883 | @chapter Host/target specific installation notes for GCC | |
884 | @end ifnothtml | |
885 | @cindex Specific | |
886 | @cindex Specific installation notes | |
887 | @cindex Target specific installation | |
888 | @cindex Host specific installation | |
889 | @cindex Target specific installation notes | |
890 | ||
891 | Please read this document carefully @emph{before} installing the | |
892 | GNU Compiler Collection on your machine. | |
893 | ||
894 | @itemize | |
895 | @item | |
896 | @uref{#alpha*-dec-linux*,,alpha*-dec-linux*} | |
897 | @item | |
898 | @uref{#alpha*-dec-osf*,,alpha*-dec-osf*} | |
899 | @item | |
900 | @uref{#avr,,avr} | |
901 | @item | |
902 | @uref{#dos,,DOS} | |
903 | @item | |
904 | @uref{#h8300-hms,,h8300-hms} | |
905 | @item | |
906 | @uref{#hppa*-hp-hpux*,,hppa*-hp-hpux*} | |
907 | @item | |
908 | @uref{#hppa*-hp-hpux9,,hppa*-hp-hpux9} | |
909 | @item | |
910 | @uref{#hppa*-hp-hpux10,,hppa*-hp-hpux10} | |
911 | @item | |
912 | @uref{#hppa*-hp-hpux11,,hppa*-hp-hpux11} | |
913 | @item | |
914 | @uref{#*-*-linux-gnu,,*-*-linux-gnu} | |
915 | @item | |
916 | @uref{#ix86-*-linux*,,i?86-*-linux*} | |
917 | @item | |
918 | @uref{#ix86-*-sco3.2v5*,,i?86-*-sco3.2v5*} | |
919 | @item | |
920 | @uref{#ix86-*-solaris*,,i?86-*-solaris*} | |
921 | @item | |
922 | @uref{#ix86-*-udk,,i?86-*-udk} | |
923 | @item | |
924 | @uref{#*-ibm-aix*,,*-ibm-aix*} | |
925 | @item | |
926 | @uref{#m68k-*-nextstep*,,m68k-*-nextstep*} | |
927 | @item | |
928 | @uref{#m68k-sun-sunos4.1.1,,m68k-sun-sunos4.1.1} | |
929 | @item | |
930 | @uref{#mips*-sgi-irix[45],,mips*-sgi-irix[45]} | |
931 | @item | |
932 | @uref{#mips*-sgi-irix6,,mips*-sgi-irix6} | |
933 | @item | |
934 | @uref{#powerpc-*-linux-gnu*,,powerpc-*-linux-gnu*} | |
935 | @item | |
936 | @uref{#*-*-solaris*,,*-*-solaris*} | |
937 | @item | |
938 | @uref{#sparc-sun-solaris*,,sparc-sun-solaris*} | |
939 | @item | |
940 | @uref{#sparc-sun-solaris2.7,,sparc-sun-solaris2.7} | |
941 | @item | |
942 | @uref{#*-sun-solaris2.8,,*-sun-solaris2.8} | |
943 | @item | |
944 | @uref{#sunv5,,Sun V5.0 Compiler Bugs} | |
945 | @item | |
946 | @uref{#sparc-sun-sunos*,,sparc-sun-sunos*} | |
947 | @item | |
948 | @uref{#sparc-unknown-linux-gnulibc1,,sparc-unknown-linux-gnulibc1} | |
949 | @item | |
950 | @uref{#sparc64-*-*,,sparc64-*-*} | |
951 | @item | |
952 | @uref{#windows,,Microsoft Windows} | |
953 | @item | |
954 | @uref{#os2,,OS/2} | |
955 | @item | |
956 | @uref{#older,,Older systems} | |
957 | @end itemize | |
958 | ||
959 | @itemize | |
960 | @item | |
961 | @uref{#elf_targets,,all ELF targets} (SVR4, Solaris, etc.) | |
962 | @end itemize | |
963 | ||
964 | ||
965 | @html | |
966 | <!-- -------- host/target specific issues start here ---------------- --> | |
967 | <hr> | |
968 | <h3><a name="alpha*-dec-linux*">alpha*-dec-linux*</a></h3> | |
969 | @end html | |
970 | ||
971 | We strongly recommend to upgrade to binutils 2.10 (or newer). | |
972 | ||
973 | The following error: | |
974 | @example | |
975 | Error: macro requires $at register while noat in effect | |
976 | @end example | |
977 | ||
978 | indicates that you should upgrade to a newer version of | |
979 | the assembler, 2.9 or later. If you can not upgrade the assembler, the | |
980 | compiler option "-Wa,-m21164a" may work around this problem. | |
981 | ||
982 | @html | |
983 | </p> | |
984 | <hr> | |
985 | <h3><a name="alpha*-dec-osf*">alpha*-dec-osf*</a></h3> | |
986 | @end html | |
987 | ||
988 | If you install a shared libstdc++ and, when you link a non-trivial C++ | |
989 | program (for example, @code{gcc/testsuite/g++.other/delete3.C}), | |
990 | the linker reports a couple of errors about multiply-defined symbols | |
991 | (for example, @code{nothrow}, @code{__throw} and | |
992 | @code{terminate(void)}), you've probably got a linker bug, for | |
993 | which there's no known fix. The officially recommended work-around is | |
994 | to remove the shared libstdc++. | |
995 | ||
996 | An alternative solution is to arrange that all symbols from | |
997 | @code{libgcc} get copied to the shared @code{libstdc++}; | |
998 | see detailed solution below. (Surprising as it may seem, this does | |
999 | indeed fix the problem!) @emph{Beware} that this may bring you | |
1000 | binary-compatibility problems in the future, if you don't use the same | |
1001 | work-around next time you build @code{libstdc++}: if programs | |
1002 | start to depend on @code{libstdc++} to provide symbols that used | |
1003 | to be only in @code{libgcc}, you must arrange that | |
1004 | @code{libstdc++} keeps providing them, otherwise the programs | |
1005 | will have to be relinked. | |
1006 | ||
1007 | The magic spell is to add @code{-Wl,-all,-lgcc,-none} to the | |
1008 | definition of macro @code{SHDEPS} in | |
1009 | @code{libstdc++/config/dec-osf.ml} @emph{before} | |
1010 | @code{alpha*-dec-osf*/libstdc++/Makefile} is created (a | |
1011 | @uref{dec-osf-shlibstdc++.patch,,patch} | |
1012 | that does just that is available). If the Makefile already exists, run | |
1013 | @code{./config.status} within directory | |
1014 | @code{alpha*-dec-osf*/libstdc++} (and | |
1015 | @code{alpha*-dec-osf*/ieee/libstdc++}, if it also exists). | |
1016 | Remove any existing @code{libstdc++.so*} from such directories, | |
1017 | and run @code{make all-target-libstdc++} in the top-level | |
1018 | directory, then @code{make install-target-libstdc++}. | |
1019 | ||
1020 | If you have already removed the build tree, you may just remove | |
1021 | @code{libstdc++.so.2.10.0} from the install tree and re-create | |
1022 | it with the command | |
1023 | @code{gcc -shared -o libstdc++.so.2.10.0 -Wl,-all,-lstdc++,-lgcc,-none -lm}. | |
1024 | If the @code{ieee} | |
1025 | sub-directory exists, repeat this command in it, with the additional | |
1026 | flag @code{-mieee}. | |
1027 | ||
1028 | @html | |
1029 | </p> | |
1030 | <hr> | |
1031 | <h3><a name="avr">avr</a></h3> | |
1032 | @end html | |
1033 | ||
1034 | Use `@command{configure} @option{--target=avr} | |
1035 | @option{--enable-languages="c"}' to configure GCC. | |
1036 | ||
1037 | Further installation notes and other useful information about AVR tools | |
1038 | can also be obtained from: | |
1039 | ||
1040 | @itemize @bullet | |
1041 | @item | |
1042 | @uref{http://home.overta.ru/users/denisc,,http://home.overta.ru/users/denisc} | |
1043 | @item | |
1044 | @uref{http://www.itnet.pl/amelektr/avr,,http://www.itnet.pl/amelektr/avr} | |
1045 | @end itemize | |
1046 | ||
1047 | We strongly recommend to upgrade to binutils 2.11 | |
1048 | (or a current snapshot until 2.11 has been released). | |
1049 | ||
1050 | The following error: | |
1051 | @example | |
1052 | Error: register required | |
1053 | @end example | |
1054 | ||
1055 | indicates that you should upgrade to a newer version of the binutils. | |
1056 | ||
1057 | @html | |
1058 | </p> | |
1059 | <hr> | |
1060 | <h3><a name="dos">DOS</a></h3> | |
1061 | @end html | |
1062 | ||
1063 | Please have a look at our @uref{binaries.html,,binaries page}. | |
1064 | ||
1065 | @html | |
1066 | </p> | |
1067 | <hr> | |
1068 | <h3><a name="h8300-hms">h8300-hms</a></h3> | |
1069 | @end html | |
1070 | ||
1071 | Please have a look at our @uref{binaries.html,,binaries page}. | |
1072 | ||
1073 | @html | |
1074 | </p> | |
1075 | <hr> | |
1076 | <h3><a name="hppa*-hp-hpux*">hppa*-hp-hpux*</a></h3> | |
1077 | @end html | |
1078 | ||
1079 | We @emph{highly} recommend using gas/binutils-2.8 or newer on all hppa | |
1080 | platforms; you may encounter a variety of problems when using the HP | |
1081 | assembler. | |
1082 | ||
1083 | Specifically, @option{-g} does not work on HP-UX (since that system | |
1084 | uses a peculiar debugging format which GCC does not know about), unless you | |
1085 | use GAS and GDB and configure GCC with the @option{--with-gnu-as} | |
1086 | option. | |
1087 | ||
1088 | If you wish to use pa-risc 2.0 architecture support, you must use either | |
1089 | the HP assembler or a recent | |
1090 | @uref{ftp://sources.redhat.com/pub/binutils/snapshots,,snapshot of gas}. | |
1091 | ||
1092 | More specific information to hppa*-hp-hpux* targets follows. | |
1093 | ||
1094 | @html | |
1095 | </p> | |
1096 | <hr> | |
1097 | <h3><a name="hppa*-hp-hpux9">hppa*-hp-hpux9</a></h3> | |
1098 | @end html | |
1099 | ||
1100 | The HP assembler has major problems on this platform. We've tried to work | |
1101 | around the worst of the problems. However, those workarounds may be causing | |
1102 | linker crashes in some circumstances; the workarounds also probably prevent | |
1103 | shared libraries from working. Use the GNU assembler to avoid these problems. | |
1104 | ||
1105 | ||
1106 | The configuration scripts for GCC will also trigger a bug in the hpux9 | |
1107 | shell. To avoid this problem set CONFIG_SHELL to @file{/bin/ksh} and SHELL | |
1108 | to @file{/bin/ksh} in your environment. | |
1109 | ||
1110 | ||
1111 | @html | |
1112 | </p> | |
1113 | <hr> | |
1114 | <h3><a name="hppa*-hp-hpux10">hppa*-hp-hpux10</a></h3> | |
1115 | @end html | |
1116 | ||
1117 | For hpux10.20, we @emph{highly} recommend you pick up the latest sed patch | |
1118 | @code{PHCO_19798} from HP. HP has two sites which provide patches free of | |
1119 | charge: | |
1120 | ||
1121 | @itemize @bullet | |
1122 | @item | |
1123 | @html | |
1124 | <a href="http://us-support.external.hp.com">US, Canada, Asia-Pacific, and | |
1125 | Latin-America</a> | |
1126 | @end html | |
1127 | @ifnothtml | |
1128 | @uref{http://us-support.external.hp.com,,}US, Canada, Asia-Pacific, and | |
1129 | Latin-America | |
1130 | @end ifnothtml | |
1131 | @item | |
1132 | @uref{http://europe-support.external.hp.com,,Europe} | |
1133 | @end itemize | |
1134 | ||
1135 | The HP assembler on these systems is much better than the hpux9 assembler, | |
1136 | but still has some problems. Most notably the assembler inserts timestamps | |
1137 | into each object file it creates, causing the 3-stage comparison test to fail | |
1138 | during a `@code{make bootstrap}'. You should be able to continue by | |
1139 | saying `@code{make all}' after getting the failure from `@code{make | |
1140 | bootstrap}'. | |
1141 | ||
1142 | ||
1143 | @html | |
1144 | </p> | |
1145 | <hr> | |
1146 | <h3><a name="hppa*-hp-hpux11">hppa*-hp-hpux11</a></h3> | |
1147 | @end html | |
1148 | ||
1149 | GCC 2.95.2 does not support HP-UX 11, and it cannot generate 64-bit | |
1150 | object files. Current (as of late 2000) snapshots and GCC 3.0 do support | |
1151 | HP-UX 11. | |
1152 | ||
1153 | ||
1154 | @html | |
1155 | </p> | |
1156 | <hr> | |
1157 | <h3><a name="*-*-linux-gnu">*-*-linux-gnu</a></h3> | |
1158 | @end html | |
1159 | ||
1160 | If you use glibc 2.2 (or 2.1.9x), GCC 2.95.2 won't install | |
1161 | out-of-the-box. You'll get compile errors while building libstdc++. | |
1162 | The patch @uref{glibc-2.2.patch,,glibc-2.2.patch}, that is to be | |
1163 | applied in the GCC source tree, fixes the compatibility problems. | |
1164 | ||
1165 | @html | |
1166 | </p> | |
1167 | <hr> | |
1168 | <h3><a name="ix86-*-linux*">i?86-*-linux*</a></h3> | |
1169 | @end html | |
1170 | ||
1171 | You will need binutils-2.9.1.0.15 or newer for exception handling to work. | |
1172 | ||
1173 | If you receive Signal 11 errors when building on GNU/Linux, then it is | |
1174 | possible you have a hardware problem. Further information on this can be | |
1175 | found on @uref{http://www.bitwizard.nl/sig11/,,www.bitwizard.nl}. | |
1176 | ||
1177 | @html | |
1178 | </p> | |
1179 | <hr> | |
1180 | <h3><a name="ix86-*-sco3.2v5*">i?86-*-sco3.2v5*</a></h3> | |
1181 | @end html | |
1182 | ||
1183 | Unlike earlier versions of GCC, the ability to generate COFF with this | |
1184 | target is no longer provided. | |
1185 | ||
1186 | Earlier versions of GCC emitted Dwarf-1 when generating ELF to allow | |
1187 | the system debugger to be used. That support was too burdensome to | |
1188 | maintain. GCC now emits only dwarf-2 for this target. This means you | |
1189 | may use either the UDK debugger or GDB to debug programs built by this | |
1190 | version of GCC. | |
1191 | ||
1192 | If you are building languages other than C, you must follow the instructions | |
1193 | about invoking `@code{make bootstrap}' because the native OpenServer | |
1194 | compiler will build a @code{cc1plus} that will not correctly parse many | |
1195 | valid C++ programs including those in @code{libgcc.a}. | |
1196 | @strong{You must do a `@code{make bootstrap}' if you are building with the | |
1197 | native compiler.} | |
1198 | ||
1199 | Use of the `@option{-march-pentiumpro}' flag can result in | |
1200 | unrecognized opcodes when using the native assembler on OS versions before | |
1201 | 5.0.6. (Support for P6 opcodes was added to the native ELF assembler in | |
1202 | that version.) While it's rather rare to see these emitted by GCC yet, | |
1203 | errors of the basic form: | |
1204 | ||
1205 | @example | |
1206 | /usr/tmp/ccaNlqBc.s:22:unknown instruction: fcomip | |
1207 | /usr/tmp/ccaNlqBc.s:50:unknown instruction: fucomip | |
1208 | @end example | |
1209 | ||
1210 | are symptoms of this problem. You may work around this by not | |
1211 | building affected files with that flag, by using the GNU assembler, or | |
1212 | by using the assembler provided with the current version of the OS. | |
1213 | Users of GNU assembler should see the note below for hazards on doing | |
1214 | so. | |
1215 | ||
1216 | The native SCO assembler that is provided with the OS at no | |
1217 | charge is normally required. If, however, you must be able to use | |
1218 | the GNU assembler (perhaps you're compiling code with asms that | |
1219 | require GAS syntax) you may configure this package using the flags | |
1220 | @option{--with-gnu-as}. You must use a recent version of GNU | |
1221 | binutils; versions past 2.9.1 seem to work well. | |
1222 | ||
1223 | In general, the @option{--with-gnu-as} option isn't as well tested | |
1224 | as the native assembler. | |
1225 | ||
1226 | Look in @file{gcc/config/i386/sco5.h} (search for "messy") for | |
1227 | additional OpenServer-specific flags. | |
1228 | ||
1229 | Systems based on OpenServer before 5.0.4 (`@code{uname -X}' | |
1230 | will tell you what you're running) require TLS597 from ftp.sco.com/TLS | |
1231 | for C++ constructors and destructors to work right. | |
1232 | ||
1233 | The system linker in (at least) 5.0.4 and 5.0.5 will sometimes | |
1234 | do the wrong thing for a construct that GCC will emit for PIC | |
1235 | code. This can be seen as execution testsuite failures when using | |
1236 | -fPIC on 921215-1.c, 931002-1.c, nestfunc-1.c, and gcov-1.c. | |
1237 | For 5.0.5, an updated linker that will cure this problem is | |
1238 | available. You must install both | |
1239 | @uref{ftp://ftp.sco.com/Supplements/rs505a/,,ftp://ftp.sco.com/Supplements/rs505a/} | |
1240 | and @uref{ftp://ftp.sco.com/SLS/,,OSS499A}. | |
1241 | ||
1242 | The dynamic linker in OpenServer 5.0.5 (earlier versions may show | |
1243 | the same problem) aborts on certain g77-compiled programs. It's particularly | |
1244 | likely to be triggered by building Fortran code with the @option{-fPIC} flag. | |
1245 | Although it's conceivable that the error could be triggered by other | |
1246 | code, only G77-compiled code has been observed to cause this abort. | |
1247 | If you are getting core dumps immediately upon execution of your | |
1248 | g77 program - and especially if it's compiled with -fPIC - try applying | |
1249 | @uref{sco_osr5_g77.patch,,@code{`sco_osr5_g77.patch'}} to your libf2c and | |
1250 | rebuilding GCC. | |
1251 | Affected faults, when analyzed in a debugger, will show a stack | |
1252 | backtrace with a fault occurring in @code{rtld()} and the program | |
1253 | running as @code{/usr/lib/ld.so.1}. This problem has been reported to SCO | |
1254 | engineering and will hopefully be addressed in later releases. | |
1255 | ||
1256 | ||
1257 | @html | |
1258 | </p> | |
1259 | <hr> | |
1260 | <h3><a name="ix86-*-solaris*">i?86-*-solaris*</a></h3> | |
1261 | @end html | |
1262 | ||
1263 | GCC 2.95.2, when configured to use the GNU assembler, would invoke | |
1264 | it with the @code{-s} switch, that GNU as up to 2.9.5.0.12 does | |
1265 | not support. If you'd rather not use a newer GNU as nor the native | |
1266 | assembler, you'll need the patch | |
1267 | @uref{x86-sol2-gas.patch,,@code{`x86-sol2-gas.patch'}}. | |
1268 | ||
1269 | ||
1270 | @html | |
1271 | </p> | |
1272 | <hr> | |
1273 | <h3><a name="ix86-*-udk">i?86-*-udk</a></h3> | |
1274 | @end html | |
1275 | ||
1276 | This target emulates the SCO Universal Development Kit and requires that | |
1277 | package be installed. (If it is installed, you will have a | |
1278 | @file{/udk/usr/ccs/bin/cc } file present.) It's very much like the | |
1279 | @code{i?86-*-unixware7*} target | |
1280 | but is meant to be used when hosting on a system where UDK isn't the | |
1281 | default compiler such as OpenServer 5 or Unixware 2. This target will | |
1282 | generate binaries that will run on OpenServer, Unixware 2, or Unixware 7, | |
1283 | with the same warnings and caveats as the SCO UDK. | |
1284 | ||
1285 | You can stage1 with either your native compiler or with UDK. If you | |
1286 | don't do a full bootstrap when initially building with your native compiler | |
1287 | you will have an utterly unusable pile of bits as your reward. | |
1288 | ||
1289 | This target is a little tricky to build because we have to distinguish | |
1290 | it from the native tools (so it gets headers, startups, and libraries | |
1291 | from the right place) while making the tools not think we're actually | |
1292 | building a cross compiler. The easiest way to do this is with a configure | |
1293 | command like this: | |
1294 | ||
1295 | @command{ CC=/udk/usr/ccs/bin/cc <i>/your/path/to/</i>gcc/configure | |
1296 | --host=i686-pc-udk --target=i686-pc-udk --program-prefix=udk-} | |
1297 | ||
1298 | @emph{You should substitute 'i686' in the above command with the appropriate | |
1299 | processor for your host.} | |
1300 | ||
1301 | You should follow this with a `@command{make bootstrap}' then | |
1302 | `@command{make install}'. You can then access the UDK-targeted GCC | |
1303 | tools by adding @code{udk-} before the commonly known name. For example, to | |
1304 | invoke the C compiler, you would use `@code{udk-gcc}'. They will coexist | |
1305 | peacefully with any native-target GCC tools you may have installed. | |
1306 | ||
1307 | ||
1308 | @html | |
1309 | </p> | |
1310 | <hr> | |
1311 | <h3><a name="*-ibm-aix*">*-ibm-aix*</a></h3> | |
1312 | <!-- rs6000-ibm-aix*, powerpc-ibm-aix* --> | |
1313 | @end html | |
1314 | ||
1315 | AIX Make frequently has problems with GCC makefiles. GNU Make 3.76 or | |
1316 | newer is recommended to build on this platform. | |
1317 | ||
1318 | Errors involving "alloca" when building GCC generally are due | |
1319 | to an incorrect definition of @command{CC} in the Makefile or mixing files | |
1320 | compiled with the native C compiler and GCC. During the stage1 phase of | |
1321 | the build, the native AIX compiler @strong{must} be invoked as "cc" | |
1322 | (not "xlc"). Once @command{configure} has been informed of | |
1323 | "xlc", one needs to use "make distclean" to remove the | |
df002c7d | 1324 | configure cache files and ensure that @command{CC} environment variable |
f42974dc DW |
1325 | does not provide a definition that will confuse @command{configure}. |
1326 | If this error occurs during stage2 or later, then the problem most likely | |
1327 | is the version of Make (see above). | |
1328 | ||
df002c7d DE |
1329 | Binutils 2.10 does not support AIX 4.3. Binutils available from the |
1330 | @uref{http://www-1.ibm.com/servers/aix/products/aixos/linux/,,AIX Toolbox for Linux: GNU and Open Source tools for AIX}; | |
1331 | website does work. Binutils 2.11 is expected to include AIX 4.3 | |
1332 | support. The GNU Assembler is necessary for libstdc++ to build. The | |
1333 | AIX native ld still is recommended. The native AIX tools do | |
1334 | interoperate with GCC. | |
1335 | ||
1336 | Linking executables and shared libraries may produce warnings of | |
1337 | duplicate symbols. The assembly files generated by GCC for AIX always | |
1338 | have included multiple symbol definitions for certain global variable | |
1339 | and function declarations in the original program. The warnings should | |
1340 | not prevent the linker from producing a correct library or runnable | |
1341 | executable. | |
1342 | ||
1343 | AIX 4.3 utilizes a "large format" archive to support both 32-bit and | |
1344 | 64-bit object modules. The routines provided in AIX 4.3.0 and AIX 4.3.1 | |
1345 | to parse archive libraries did not handle the new format correctly. | |
1346 | These routines are used by GCC and result in error messages during | |
1347 | linking such as "not a COFF file". The version of the routines shipped | |
1348 | with AIX 4.3.1 should work for a 32-bit environment. The @option{-g} | |
1349 | option of the archive command may be used to create archives of 32-bit | |
1350 | objects using the original "small format". A correct version of the | |
1351 | routines is shipped with AIX 4.3.2. | |
1352 | ||
f42974dc DW |
1353 | Some versions of the AIX binder (linker) can fail with a relocation |
1354 | overflow severe error when the @option{-bbigtoc} option is used to link | |
1355 | GCC-produced object files into an executable that overflows the TOC. A fix | |
1356 | for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC) is | |
1357 | available from IBM Customer Support and from its | |
1358 | @uref{http://service.boulder.ibm.com/,,service.boulder.ibm.com} | |
1359 | website as PTF U455193. | |
1360 | ||
df002c7d DE |
1361 | The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core |
1362 | with a segmentation fault when invoked by any version of GCC. A fix for | |
1363 | APAR IX87327 is available from IBM Customer Support and from its | |
1364 | @uref{http://service.boulder.ibm.com/,,service.boulder.ibm.com} | |
1365 | website as PTF U461879. This fix is incorporated in AIX 4.3.3 and above. | |
f42974dc DW |
1366 | |
1367 | The initial assembler shipped with AIX 4.3.0 generates incorrect object | |
1368 | files. A fix for APAR IX74254 (64BIT DISASSEMBLED OUTPUT FROM COMPILER FAILS | |
1369 | TO ASSEMBLE/BIND) is available from IBM Customer Support and from its | |
1370 | @uref{http://service.boulder.ibm.com/,,service.boulder.ibm.com} | |
1371 | website as PTF U453956. This fix is incorporated in AIX 4.3.1 and above. | |
1372 | ||
df002c7d DE |
1373 | AIX provides National Language Support (NLS). Compilers and assemblers |
1374 | use NLS to support locale-specific representations of various data | |
1375 | formats including floating-point numbers (e.g., "." vs "," for | |
1376 | separating decimal fractions). There have been problems reported where | |
1377 | GCC does not produce the same floating-point formats that the assembler | |
1378 | expects. If one encouters this problem, set the @command{LANG} | |
1379 | environment variable to "C" or "En_US". | |
f42974dc DW |
1380 | |
1381 | ||
1382 | @html | |
1383 | </p> | |
1384 | <hr> | |
1385 | <h3><a name="m68k-*-nextstep*">m68k-*-nextstep*</a></h3> | |
1386 | @end html | |
1387 | ||
1388 | You absolutely @strong{must} use GNU sed and GNU make on this platform. | |
1389 | ||
1390 | ||
1391 | On NEXTSTEP 3.x where x < 3 the build of GCC will abort during | |
1392 | stage1 with an error message like this: | |
1393 | ||
1394 | @example | |
1395 | _eh | |
1396 | /usr/tmp/ccbbsZ0U.s:987:Unknown pseudo-op: .section | |
1397 | /usr/tmp/ccbbsZ0U.s:987:Rest of line ignored. 1st junk character | |
1398 | valued 95 (_). | |
1399 | @end example | |
1400 | ||
1401 | The reason for this is the fact that NeXT's assembler for these | |
1402 | versions of the operating system does not support the .section | |
1403 | pseudo op that's needed for full C++ exception functionality. | |
1404 | ||
1405 | As NeXT's assembler is a derived work from GNU as, a free | |
1406 | replacement that does can be obtained at | |
1407 | @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}. | |
1408 | ||
1409 | If you try to build the integrated C++ & C++ runtime libraries on this system | |
1410 | you will run into trouble with include files. The way to get around this is | |
1411 | to use the following sequence. Note you must have write permission to | |
1412 | the directory @emph{prefix} you specified in the configuration process of GCC | |
1413 | for this sequence to work. | |
1414 | ||
1415 | @example | |
1416 | cd bld-gcc | |
1417 | make all-texinfo all-bison all-byacc all-binutils all-gas all-ld | |
1418 | cd gcc | |
1419 | make bootstrap | |
1420 | make install-headers-tar | |
1421 | cd .. | |
1422 | make bootstrap3 | |
1423 | @end example | |
1424 | ||
1425 | ||
1426 | @html | |
1427 | </p> | |
1428 | <hr> | |
1429 | <h3><a name="m68k-sun-sunos4.1.1">m68k-sun-sunos4.1.1</a></h3> | |
1430 | @end html | |
1431 | ||
1432 | It is reported that you may need the GNU assembler on this platform. | |
1433 | ||
1434 | ||
1435 | @html | |
1436 | </p> | |
1437 | <hr> | |
1438 | <h3><a name="mips*-sgi-irix[45]">mips*-sgi-irix[45]</a></h3> | |
1439 | @end html | |
1440 | ||
1441 | You must use GAS on these platforms, as the native assembler can not handle | |
1442 | the code for exception handling support. Either of these messages indicates | |
1443 | that you are using the MIPS assembler when instead you should be using GAS: | |
1444 | ||
1445 | @samp{ as0: Error: ./libgcc2.c, line 1:Badly delimited numeric literal | |
1446 | .4byte $LECIE1-$LSCIE1 | |
1447 | as0: Error: ./libgcc2.c, line 1:malformed statement} | |
1448 | ||
1449 | or: | |
1450 | ||
1451 | @samp{ as0: Error: /src/bld-gcc/gcc/libgcc2.c, line 1:undefined symbol in expression | |
1452 | .word $LECIE1-$LSCIE1} | |
1453 | ||
1454 | These systems don't have ranlib, which various components in GCC need; you | |
1455 | should be able to avoid this problem by installing GNU binutils, which includes | |
1456 | a functional ranlib for this system. | |
1457 | ||
1458 | You may get the following warning on irix4 platforms, it can be safely | |
1459 | ignored. | |
1460 | @example | |
1461 | warning: foo.o does not have gp tables for all its sections. | |
1462 | @end example | |
1463 | ||
1464 | When building GCC, the build process loops rebuilding cc1 over and | |
1465 | over again. This happens on mips-sgi-irix5.2, and possibly other platforms.@* | |
1466 | It has been reported that this is a known bug in the make shipped with | |
1467 | IRIX 5.2. We recommend you use GNU make instead of the vendor supplied | |
1468 | make program; however, you may have success with "smake" on IRIX 5.2 if | |
1469 | you do not have GNU make available. | |
1470 | ||
1471 | See @uref{http://reality.sgi.com/ariel/freeware/,,http://reality.sgi.com/ariel/freeware} for more information about | |
1472 | using GCC on IRIX platforms. | |
1473 | ||
1474 | ||
1475 | @html | |
1476 | </p> | |
1477 | <hr> | |
1478 | <h3><a name="mips*-sgi-irix6">mips*-sgi-irix6</a></h3> | |
1479 | @end html | |
1480 | ||
1481 | You must @emph{not} use GAS on irix6 platforms; doing so will only | |
1482 | cause problems. | |
1483 | ||
1484 | These systems don't have ranlib, which various components in GCC need; you | |
1485 | should be able to avoid this problem by making a dummy script called ranlib | |
1486 | which just exits with zero status and placing it in your path. | |
1487 | ||
1488 | If you are using Irix cc as your bootstrap compiler, you must | |
1489 | ensure that the N32 ABI is in use. To test this, compile a simple C | |
1490 | file with @command{cc} and then run @command{file} on the | |
1491 | resulting object file. The output should look like: | |
1492 | ||
1493 | @example | |
1494 | @code{ test.o: ELF N32 MSB ...} | |
1495 | @end example | |
1496 | ||
1497 | If you see: | |
1498 | @example | |
1499 | @code{ test.o: ELF 32-bit MSB} | |
1500 | @end example | |
1501 | ||
1502 | then your version of @command{cc} uses the O32 ABI default. You | |
1503 | should set the environment variable @command{CC} to 'cc -n32' | |
1504 | before configuring GCC. | |
1505 | ||
1506 | GCC does not currently support generating O32 ABI binaries in the | |
1507 | mips-sgi-irix6 configurations. It used to be possible to create a GCC | |
1508 | with O32 ABI only support by configuring it for the mips-sgi-irix5 | |
1509 | target. See the link below for details. | |
1510 | ||
1511 | GCC does not correctly pass/return structures which are | |
1512 | smaller than 16 bytes and which are not 8 bytes. The problem is very | |
1513 | involved and difficult to fix. It affects a number of other targets also, | |
1514 | but IRIX 6 is affected the most, because it is a 64 bit target, and 4 byte | |
1515 | structures are common. The exact problem is that structures are being padded | |
1516 | at the wrong end, e.g. a 4 byte structure is loaded into the lower 4 bytes | |
1517 | of the register when it should be loaded into the upper 4 bytes of the | |
1518 | register. | |
1519 | ||
1520 | GCC is consistent with itself, but not consistent with the SGI C compiler | |
1521 | (and the SGI supplied runtime libraries), so the only failures that can | |
1522 | happen are when there are library functions that take/return such | |
1523 | structures. There are very few such library functions. I can only recall | |
1524 | seeing two of them: inet_ntoa, and semctl. | |
1525 | ||
1526 | See @uref{http://reality.sgi.com/ariel/freeware/,,http://reality.sgi.com/ariel/freeware} for more information about | |
1527 | using GCC on IRIX platforms. | |
1528 | ||
1529 | ||
1530 | @html | |
1531 | </p> | |
1532 | <hr> | |
1533 | <h3><a name="powerpc-*-linux-gnu*">powerpc-*-linux-gnu*</a></h3> | |
1534 | @end html | |
1535 | ||
1536 | You will need | |
1537 | @uref{ftp://ftp.varesearch.com/pub/support/hjl/binutils,,binutils-2.9.4.0.8} | |
1538 | or newer for a working GCC. It is strongly recommended to recompile binutils | |
1539 | if you initially built it with gcc-2.7.2.x. | |
1540 | ||
1541 | ||
1542 | @html | |
1543 | </p> | |
1544 | <hr> | |
1545 | <h3><a name="*-*-solaris*">*-*-solaris*</a></h3> | |
1546 | @end html | |
1547 | ||
1548 | Starting with Solaris, Sun does not ship a C compiler any more. To | |
1549 | bootstrap and install GCC you first have to install a pre-built | |
1550 | compiler, see our @uref{binaries.html,,binaries page} for | |
1551 | details. | |
1552 | ||
e6855a2d MM |
1553 | You must use GNU Make to build GCC on Solaris 2. If you don't have GNU |
1554 | Make installed, you can use the prebuilt compiler mentioned above to | |
1555 | build it. | |
1556 | ||
f42974dc DW |
1557 | Sun as 4.X is broken in that it cannot cope with long symbol names. |
1558 | A typical error message might look similar to the following: | |
1559 | ||
1560 | @samp{/usr/ccs/bin/as: "/var/tmp/ccMsw135.s", line 11041: | |
1561 | error: can't compute value of an expression involving an external symbol.} | |
1562 | ||
e6855a2d MM |
1563 | This is Sun bug 4237974. This is fixed with patch 108908-02 and has |
1564 | been fixed in later (5.x) versions of the assembler. | |
f42974dc DW |
1565 | @html |
1566 | <p> | |
1567 | <hr> | |
1568 | <h3><a name="sparc-sun-solaris*">sparc-sun-solaris*</a></h3> | |
1569 | @end html | |
1570 | ||
1571 | binutils 2.9.1 has known bugs on this platform. We recommend to use | |
1572 | binutils 2.10 or the vendor tools (Sun as, Sun ld). | |
1573 | ||
1574 | Unfortunately, C++ shared libraries, including libstdc++, won't work | |
1575 | properly if assembled with Sun as: the linker will complain about | |
1576 | relocations in read-only sections, in the definition of virtual | |
1577 | tables. Also, Sun as fails to process long symbols resulting from | |
1578 | mangling template-heavy C++ function names. | |
1579 | ||
1580 | ||
1581 | @html | |
1582 | </p> | |
1583 | <hr> | |
1584 | <h3><a name="sparc-sun-solaris2.7">sparc-sun-solaris2.7</a></h3> | |
1585 | @end html | |
1586 | ||
1587 | Sun patch 107058-01 (1999-01-13) for SPARC Solaris 7 triggers a bug in | |
1588 | the dynamic linker. This problem (Sun bug 4210064) affects GCC 2.8 | |
1589 | and later, including all EGCS releases. Sun formerly recommended | |
1590 | 107058-01 for all Solaris 7 users, but around 1999-09-01 it started to | |
1591 | recommend it only for people who use Sun's compilers. | |
1592 | ||
1593 | Here are some workarounds to this problem: | |
1594 | @itemize @bullet | |
1595 | @item | |
1596 | Do not install Sun patch 107058-01 until after Sun releases a | |
1597 | complete patch for bug 4210064. This is the simplest course to take, | |
1598 | unless you must also use Sun's C compiler. Unfortunately 107058-01 | |
1599 | is preinstalled on some new Solaris-based hosts, so you may have to | |
1600 | back it out. | |
1601 | ||
1602 | @item | |
1603 | Copy the original, unpatched Solaris 7 | |
1604 | @command{/usr/ccs/bin/as} into | |
1605 | @command{/usr/local/lib/gcc-lib/sparc-sun-solaris2.7/2.95.1/as}, | |
1606 | adjusting the latter name to fit your local conventions and software | |
1607 | version numbers. | |
1608 | ||
1609 | @item | |
1610 | Install Sun patch 106950-03 (1999-05-25) or later. Nobody with | |
1611 | both 107058-01 and 106950-03 installed has reported the bug with GCC | |
1612 | and Sun's dynamic linker. This last course of action is riskiest, | |
1613 | for two reasons. First, you must install 106950 on all hosts that | |
1614 | run code generated by GCC; it doesn't suffice to install it only on | |
1615 | the hosts that run GCC itself. Second, Sun says that 106950-03 is | |
1616 | only a partial fix for bug 4210064, but Sun doesn't know whether the | |
1617 | partial fix is adequate for GCC. Revision -08 or later should fix | |
1618 | the bug, but (as of 1999-10-06) it is still being tested. | |
1619 | @end itemize | |
1620 | ||
1621 | ||
1622 | @html | |
1623 | <p> | |
1624 | <hr> | |
1625 | <h3><a name="*-sun-solaris2.8">*-sun-solaris2.8</a></h3> | |
1626 | <!-- ripped from the same FAQ that I answered --> | |
1627 | @end html | |
1628 | ||
1629 | Sun bug 4296832 turns up when compiling X11 headers with GCC 2.95 or | |
1630 | newer: g++ will complain that types are missing. These headers assume | |
1631 | that omitting the type means 'int'; this assumption worked for C89 but | |
1632 | is wrong for C++, and is now wrong for C99 also. | |
1633 | ||
1634 | g++ accepts such (illegal) constructs with the option @option{-fpermissive}; it | |
1635 | will assume that any missing type is 'int' (as defined by C89). | |
1636 | ||
1637 | For Solaris 8, t<h3><a name="older"></a>Older systems</h3>\r | |
1638 | \r | |
1639 | <p>GCC contains support files for many older (1980s and early\r | |
1640 | 1990s) Unix variants. For the most part, support for these systems\r | |
1641 | has not been deliberately removed, but it has not been maintained for\r | |
1642 | several years and may suffer from bitrot. Support from some systems\r | |
1643 | has been removed from GCC 3: fx80, ns32-ns-genix, pyramid, tahoe,\r | |
1644 | gmicro, spur; most of these targets had not been updated since GCC\r | |
1645 | version 1.</p>\r | |
1646 | \r | |
1647 | <p>Support for older systems as targets for cross-compilation is less\r | |
1648 | problematic than support for them as hosts for GCC; if an\r | |
1649 | enthusiast wishes to make such a target work again\r | |
1650 | (including resurrecting any of the targets that never worked with GCC\r | |
1651 | 2, starting from the last CVS version before they were removed),\r | |
1652 | patches <a href="../contribute.html">following the usual\r | |
1653 | requirements</a> would be likely to be accepted, since they should not\r | |
1654 | affect the support for more modern targets.</p>\r | |
1655 | \r | |
1656 | <p>Support for old systems as hosts for GCC can cause problems if the\r | |
1657 | workarounds for compiler, library and operating system bugs affect the\r | |
1658 | cleanliness or maintainability of the rest of GCC. In some cases, to\r | |
1659 | bring GCC up on such a system, if still possible with current GCC, may\r | |
1660 | require first installing an old version of GCC which did work on that\r | |
1661 | system, and using it to compile a more recent GCC, to avoid bugs in\r | |
1662 | the vendor compiler. Old releases of GCC 1 and GCC 2 are available in\r | |
1663 | the old-releases directory on the <a href="../mirrors.html">GCC mirror\r | |
1664 | sites</a>. Header bugs may generally be avoided using\r | |
1665 | <code>fixincludes</code>, but bugs or deficiencies in libraries and\r | |
1666 | the operating system may still cause problems.</p>\r | |
1667 | \r | |
1668 | <p>For some systems, old versions of GNU binutils may also be useful,\r | |
1669 | and are available from pub/binutils/old-releases on <a\r | |
1670 | href="http://sources.redhat.com/mirrors.html">sources.redhat.com\r | |
1671 | mirror sites</a>.</p>\r | |
1672 | \r | |
1673 | <p>Some of the information on specific systems above relates to\r | |
1674 | such older systems, but much of the information\r | |
1675 | about GCC on such systems (which may no longer be applicable to\r | |
1676 | current GCC) is to be found in the GCC texinfo manual.</p>\r | |
1677 | \r | |
1678 | <hr>\r | |
1679 | his is fixed by revision 24 or later of patch 108652 | |
1680 | (for SPARCs) or 108653 (for Intels). | |
1681 | ||
1682 | ||
1683 | @html | |
1684 | <p> | |
1685 | <hr> | |
1686 | <h3><a name="sunv5">Sun V5.0 Compiler Bugs</a></h3> | |
1687 | @end html | |
1688 | ||
1689 | The Sun V5.0 compilers are known to mis-compile GCC 2.95 and GCC 2.95.1, | |
1690 | which in turn causes GCC to fail its bootstrap comparison test. | |
1691 | GCC 2.95.2 has a workaround. | |
1692 | ||
1693 | ||
1694 | @html | |
1695 | </p> | |
1696 | <hr> | |
1697 | <h3><a name="sparc-sun-sunos*">sparc-sun-sunos*</a></h3> | |
1698 | @end html | |
1699 | ||
1700 | A bug in the SunOS4 linker will cause it to crash when linking | |
1701 | -fPIC compiled objects (and will therefore not allow you to build | |
1702 | shared libraries). | |
1703 | ||
1704 | To fix this problem you can either use the most recent version of | |
1705 | binutils or get the latest SunOS4 linker patch (patch ID 100170-10) | |
1706 | from Sun's patch site. | |
1707 | ||
1708 | ||
1709 | @html | |
1710 | </p> | |
1711 | <hr> | |
1712 | <h3><a name="sparc-unknown-linux-gnulibc1">sparc-unknown-linux-gnulibc1</a></h3> | |
1713 | @end html | |
1714 | ||
1715 | It has been reported that you might need | |
1716 | @uref{ftp://ftp.yggdrasil.com/private/hjl,,binutils-2.8.1.0.23} | |
1717 | for this platform, too. | |
1718 | ||
1719 | ||
1720 | @html | |
1721 | </p> | |
1722 | <hr> | |
1723 | <h3><a name="sparc64-*-*">sparc64-*-*</a></h3> | |
1724 | @end html | |
1725 | ||
1726 | GCC version 2.95 is not able to compile code correctly for | |
1727 | @code{sparc64} targets. Users of the Linux kernel, at least, | |
1728 | 12~can use the @code{sparc32} program to start up a new shell | |
1729 | invocation with an environment that causes @command{configure} to | |
1730 | recognize (via @command{uname -a}) the system as @command{sparc-*-*} instead. | |
1731 | ||
1732 | ||
1733 | @html | |
1734 | </p> | |
1735 | <hr> | |
1736 | <h3><a name="windows"></a>Microsoft Windows (32 bit)</h3> | |
1737 | @end html | |
1738 | ||
1739 | A port of GCC 2.95.x is included with the | |
1740 | @uref{http://www.cygwin.com/,,Cygwin environment}. | |
1741 | ||
1742 | Current (as of early 2001) snapshots of GCC will build under Cygwin | |
1743 | without modification. | |
1744 | ||
1745 | @html | |
1746 | </p> | |
1747 | <hr> | |
1748 | <h3><a name="os2"></a>OS/2</h3> | |
1749 | @end html | |
1750 | ||
1751 | GCC does not currently support OS/2. However, Andrew Zabolotny has been | |
1752 | working on a generic OS/2 port with pgcc. The current code code can be found | |
1753 | at @uref{http://www.goof.com/pcg/os2/,,http://www.goof.com/pcg/os2/}. | |
1754 | ||
1755 | An older copy of GCC 2.8.1 is included with the EMX tools available at | |
1756 | @uref{ftp://ftp.leo.org/pub/comp/os/os2/leo/devtools/emx+gcc/,, | |
1757 | ftp://ftp.leo.org/pub/comp/os/os2/leo/devtools/emx+gcc/}. | |
1758 | ||
1759 | @html | |
1760 | </p> | |
1761 | <hr> | |
1762 | <h3><a name="older"></a>Older systems</h3> | |
1763 | @end html | |
1764 | ||
1765 | GCC contains support files for many older (1980s and early | |
1766 | 1990s) Unix variants. For the most part, support for these systems | |
1767 | has not been deliberately removed, but it has not been maintained for | |
1768 | several years and may suffer from bitrot. Support from some systems | |
1769 | has been removed from GCC 3: fx80, ns32-ns-genix, pyramid, tahoe, | |
1770 | gmicro, spur; most of these targets had not been updated since GCC | |
1771 | version 1. | |
1772 | ||
1773 | Support for older systems as targets for cross-compilation is less | |
1774 | problematic than support for them as hosts for GCC; if an enthusiast | |
1775 | wishes to make such a target work again (including resurrecting any | |
1776 | of the targets that never worked with GCC 2, starting from the last | |
1777 | CVS version before they were removed), patches | |
1778 | @uref{../contribute.html,,following the usual requirements} | |
1779 | would be likely to be accepted, since they should not affect the | |
1780 | support for more modern targets. | |
1781 | ||
1782 | Support for old systems as hosts for GCC can cause problems if the | |
1783 | workarounds for compiler, library and operating system bugs affect the | |
1784 | cleanliness or maintainability of the rest of GCC. In some cases, to | |
1785 | bring GCC up on such a system, if still possible with current GCC, may | |
1786 | require first installing an old version of GCC which did work on that | |
1787 | system, and using it to compile a more recent GCC, to avoid bugs in | |
1788 | the vendor compiler. Old releases of GCC 1 and GCC 2 are available in | |
1789 | the old-releases directory on the | |
1790 | @uref{../mirrors.html,,GCC mirror sites}. Header bugs may generally | |
1791 | be avoided using @code{fixincludes}, but bugs or deficiencies in libraries and | |
1792 | the operating system may still cause problems. | |
1793 | ||
1794 | For some systems, old versions of GNU binutils may also be useful, | |
1795 | and are available from pub/binutils/old-releases on | |
1796 | @uref{http://sources.redhat.com/mirrors.html,,sources.redhat.com mirror sites}. | |
1797 | ||
1798 | Some of the information on specific systems above relates to | |
1799 | such older systems, but much of the information | |
1800 | about GCC on such systems (which may no longer be applicable to | |
1801 | current GCC) is to be found in the GCC texinfo manual. | |
1802 | ||
1803 | @html | |
1804 | </p> | |
1805 | <hr> | |
1806 | <h3><a name="elf_targets">all ELF targets (SVR4, Solaris, etc.)</a></h3> | |
1807 | @end html | |
1808 | ||
1809 | C++ support is significantly better on ELF targets if you use the GNU | |
1810 | linker; duplicate copies of inlines, vtables and template instantiations | |
1811 | will be discarded automatically. | |
1812 | ||
1813 | ||
1814 | @html | |
1815 | </p> | |
1816 | <hr> | |
1817 | <p> | |
1818 | @end html | |
1819 | @ifhtml | |
1820 | @uref{./index.html,,Return to the GCC Installation page} | |
1821 | @end ifhtml | |
1822 | @end ifset | |
1823 | ||
1824 | @c *************************************************************************** | |
1825 | @c Part 6 The End of the Document | |
1826 | @ifinfo | |
1827 | @comment node-name, next, previous, up | |
1828 | @node Concept Index, , Specific, Top | |
1829 | @end ifinfo | |
1830 | ||
1831 | @ifinfo | |
1832 | @unnumbered Concept Index | |
1833 | ||
1834 | @printindex cp | |
1835 | ||
1836 | @contents | |
1837 | @end ifinfo | |
1838 | @bye |