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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 | ||
f42974dc DW |
36 | @c Copyright (C) 2001 Free Software Foundation, Inc. |
37 | @c *** Converted to texinfo by Dean Wakerley, dean@wakerley.com | |
38 | ||
39 | @c Include everything if we're not making html | |
40 | @ifnothtml | |
41 | @set indexhtml | |
42 | @set specifichtml | |
43 | @set downloadhtml | |
44 | @set configurehtml | |
45 | @set buildhtml | |
46 | @set testhtml | |
47 | @set finalinstallhtml | |
48 | @set binarieshtml | |
49 | @end ifnothtml | |
50 | ||
51 | @c Part 2 Summary Description and Copyright | |
52 | @ifinfo | |
53 | ||
54 | Copyright @copyright{} 2001 Free Software Foundation, Inc. | |
55 | @end ifinfo | |
56 | ||
57 | @c Part 3 Titlepage and Copyright | |
58 | @titlepage | |
59 | @sp 10 | |
60 | @comment The title is printed in a large font. | |
ef88b07d | 61 | @center @titlefont{Installing GCC} |
f42974dc DW |
62 | |
63 | @c The following two commands start the copyright page. | |
64 | @page | |
ef88b07d | 65 | @vskip 0pt plus 1filll |
f42974dc DW |
66 | Copyright @copyright{} 2001 Free Software Foundation, Inc. |
67 | @end titlepage | |
68 | ||
69 | @c Part 4 Top node and Master Menu | |
70 | @ifinfo | |
71 | @node Top, , , (dir) | |
72 | @comment node-name, next, Previous, up | |
73 | ||
74 | @menu | |
75 | * Installing GCC:: This document describes the generic installation | |
76 | procedure for GCC as well as detailing some target | |
f9047ed3 | 77 | specific installation instructions. |
f42974dc DW |
78 | |
79 | * Specific:: Host/target specific installation notes for GCC. | |
80 | * Binaries:: Where to get pre-compiled binaries. | |
81 | ||
82 | * Concept Index:: This index has two entries. | |
83 | @end menu | |
84 | @end ifinfo | |
85 | ||
86 | @c Part 5 The Body of the Document | |
87 | @c ***Installing GCC********************************************************** | |
6cfb3f16 | 88 | @ifnothtml |
f42974dc DW |
89 | @comment node-name, next, previous, up |
90 | @node Installing GCC, Binaries, , Top | |
6cfb3f16 | 91 | @end ifnothtml |
f42974dc DW |
92 | @ifset indexhtml |
93 | @html | |
94 | <h1 align="center">Installing GCC</h1> | |
95 | @end html | |
96 | @ifnothtml | |
97 | @chapter Installing GCC | |
98 | @end ifnothtml | |
99 | ||
100 | The latest version of this document is always available at | |
f9047ed3 | 101 | @uref{http://gcc.gnu.org/install/,,http://gcc.gnu.org/install/}. |
f42974dc DW |
102 | |
103 | This document describes the generic installation procedure for GCC as well | |
f9047ed3 | 104 | as detailing some target specific installation instructions. |
f42974dc | 105 | |
f9047ed3 JM |
106 | GCC includes several components that previously were separate distributions |
107 | with their own installation instructions. This document supersedes all | |
eea81d3e | 108 | package specific installation instructions. |
f42974dc | 109 | |
f9047ed3 | 110 | @emph{Before} starting the build/install procedure please check the |
f42974dc | 111 | @ifnothtml |
eea81d3e | 112 | @ref{Specific, host/target specific installation notes}. |
f42974dc | 113 | @end ifnothtml |
c009f01f | 114 | @ifhtml |
f9047ed3 | 115 | @uref{specific.html,,host/target specific installation notes}. |
c009f01f | 116 | @end ifhtml |
f9047ed3 | 117 | We recommend you browse the entire generic installation instructions before |
f42974dc DW |
118 | you proceed. |
119 | ||
c009f01f JJ |
120 | Lists of successful builds for released versions of GCC are |
121 | available at our web pages for | |
122 | @uref{http://gcc.gnu.org/gcc-3.0/buildstat.html,,3.0} | |
123 | and | |
124 | @uref{http://gcc.gnu.org/gcc-2.95/buildstat.html,,2.95}. | |
125 | These lists are updated as new information becomes available. | |
126 | ||
f9047ed3 | 127 | The installation procedure itself is broken into five steps. |
f42974dc DW |
128 | |
129 | @ifinfo | |
130 | @menu | |
131 | * Downloading the source:: | |
132 | * Configuration:: | |
133 | * Building:: | |
134 | * Testing:: (optional) | |
135 | * Final install:: | |
136 | @end menu | |
137 | @end ifinfo | |
c009f01f | 138 | @ifhtml |
f42974dc | 139 | @enumerate |
f9047ed3 | 140 | @item |
f42974dc | 141 | @uref{download.html,,Downloading the source} |
f42974dc | 142 | @item |
f9047ed3 JM |
143 | @uref{configure.html,,Configuration} |
144 | @item | |
145 | @uref{build.html,,Building} | |
146 | @item | |
147 | @uref{test.html,,Testing} (optional) | |
f42974dc DW |
148 | @item |
149 | @uref{finalinstall.html,,Final install} | |
150 | @end enumerate | |
c009f01f | 151 | @end ifhtml |
f42974dc | 152 | |
38209993 | 153 | Please note that GCC does not support @samp{make uninstall} and probably |
f9047ed3 | 154 | won't do so in the near future as this would open a can of worms. Instead, |
f42974dc | 155 | we suggest that you install GCC into a directory of its own and simply |
38209993 | 156 | remove that directory when you do not need that specific version of GCC |
eea81d3e RO |
157 | any longer, and, if shared libraries are installed there as well, no |
158 | more binaries exist that use them. | |
f42974dc DW |
159 | |
160 | @html | |
161 | <hr> | |
162 | <p> | |
163 | @end html | |
164 | @ifhtml | |
165 | @uref{./index.html,,Return to the GCC Installation page} | |
166 | @end ifhtml | |
167 | @end ifset | |
168 | ||
169 | @c ***Downloading the source************************************************** | |
6cfb3f16 | 170 | @ifnothtml |
f42974dc DW |
171 | @comment node-name, next, previous, up |
172 | @node Downloading the source, Configuration, , Installing GCC | |
6cfb3f16 | 173 | @end ifnothtml |
f42974dc DW |
174 | @ifset downloadhtml |
175 | @html | |
176 | <h1 align="center">Downloading GCC</h1> | |
177 | @end html | |
178 | @ifnothtml | |
179 | @chapter Downloading GCC | |
180 | @end ifnothtml | |
181 | @cindex Downloading GCC | |
182 | @cindex Downloading the Source | |
183 | ||
eea81d3e RO |
184 | GCC is distributed via @uref{http://gcc.gnu.org/cvs.html,,CVS} and FTP |
185 | tarballs compressed with @command{gzip} or | |
6cfb3f16 | 186 | @command{bzip2}. It is possible to download a full distribution or specific |
f42974dc DW |
187 | components. |
188 | ||
189 | Please refer to our @uref{http://gcc.gnu.org/releases.html,,releases web page} | |
161d7b59 | 190 | for information on how to obtain GCC@. |
f42974dc DW |
191 | |
192 | The full distribution includes the C, C++, Objective-C, Fortran, Java, | |
eea81d3e RO |
193 | and CHILL compilers. The full distribution also includes runtime libraries |
194 | for C++, Objective-C, Fortran, Java and CHILL. (GCC 3.0 does not | |
195 | include CHILL.) In GCC 3.0 and later versions, GNU compiler testsuites | |
ecb7d6b3 | 196 | are also included in the full distribution. |
f42974dc DW |
197 | |
198 | If you choose to download specific components, you must download the core | |
eea81d3e | 199 | GCC distribution plus any language specific distributions you wish to |
6c0a4eab | 200 | use. The core distribution includes the C language front end as well as the |
767094dd | 201 | shared components. Each language has a tarball which includes the language |
6c0a4eab | 202 | front end as well as the language runtime (when appropriate). |
f42974dc DW |
203 | |
204 | Unpack the core distribution as well as any language specific | |
205 | distributions in the same directory. | |
206 | ||
207 | If you also intend to build binutils (either to upgrade an existing | |
208 | installation or for use in place of the corresponding tools of your | |
209 | OS), unpack the binutils distribution either in the same directory or | |
210 | a separate one. In the latter case, add symbolic links to any | |
211 | components of the binutils you intend to build alongside the compiler | |
6cfb3f16 JM |
212 | (@file{bfd}, @file{binutils}, @file{gas}, @file{gprof}, @file{ld}, |
213 | @file{opcodes}, @dots{}) to the directory containing the GCC sources. | |
f42974dc DW |
214 | |
215 | @html | |
216 | <hr> | |
217 | <p> | |
218 | @end html | |
219 | @ifhtml | |
220 | @uref{./index.html,,Return to the GCC Installation page} | |
221 | @end ifhtml | |
222 | @end ifset | |
223 | ||
224 | @c ***Configuration*********************************************************** | |
6cfb3f16 | 225 | @ifnothtml |
f42974dc DW |
226 | @comment node-name, next, previous, up |
227 | @node Configuration, Building, Downloading the source, Installing GCC | |
6cfb3f16 | 228 | @end ifnothtml |
f42974dc DW |
229 | @ifset configurehtml |
230 | @html | |
231 | <h1 align="center">Installing GCC: Configuration</h1> | |
232 | @end html | |
233 | @ifnothtml | |
234 | @chapter Installing GCC: Configuration | |
235 | @end ifnothtml | |
236 | @cindex Configuration | |
237 | @cindex Installing GCC: Configuration | |
238 | ||
239 | Like most GNU software, GCC must be configured before it can be built. | |
240 | This document describes the recommended configuration procedure | |
241 | for both native and cross targets. | |
242 | ||
38209993 LG |
243 | We use @var{srcdir} to refer to the toplevel source directory for |
244 | GCC; we use @var{objdir} to refer to the toplevel build/object directory. | |
245 | ||
246 | If you obtained the sources via CVS, @var{srcdir} must refer to the top | |
247 | @file{gcc} directory, the one where the @file{MAINTAINERS} can be found, | |
248 | and not its @file{gcc} subdirectory, otherwise the build will fail. | |
f42974dc DW |
249 | |
250 | First, we @strong{highly} recommend that GCC be built into a | |
251 | separate directory than the sources which does @strong{not} reside | |
252 | within the source tree. This is how we generally build GCC; building | |
38209993 LG |
253 | where @var{srcdir} == @var{objdir} should still work, but doesn't |
254 | get extensive testing; building where @var{objdir} is a subdirectory | |
255 | of @var{srcdir} is unsupported. | |
f42974dc | 256 | |
eea81d3e | 257 | If you have previously built GCC in the same directory for a |
f85b8d1a JM |
258 | different target machine, do @samp{make distclean} to delete all files |
259 | that might be invalid. One of the files this deletes is | |
260 | @file{Makefile}; if @samp{make distclean} complains that @file{Makefile} | |
261 | does not exist, it probably means that the directory is already suitably | |
262 | clean. However, with the recommended method of building in a separate | |
263 | @var{objdir}, you should simply use a different @var{objdir} for each | |
264 | target. | |
265 | ||
38209993 LG |
266 | Second, when configuring a native system, either @command{cc} or |
267 | @command{gcc} must be in your path or you must set @env{CC} in | |
df002c7d DE |
268 | your environment before running configure. Otherwise the configuration |
269 | scripts may fail. | |
f42974dc | 270 | |
eea81d3e RO |
271 | Note that the bootstrap compiler and the resulting GCC must be link |
272 | compatible, else the bootstrap will fail with linker errors about | |
273 | incompatible object file formats. Several multilibed targets are | |
e69aa433 GP |
274 | affected by this requirement, see |
275 | @ifnothtml | |
276 | @ref{Specific, host/target specific installation notes}. | |
277 | @end ifnothtml | |
c009f01f | 278 | @ifhtml |
e69aa433 | 279 | @uref{specific.html,,host/target specific installation notes}. |
c009f01f | 280 | @end ifhtml |
eea81d3e | 281 | |
f42974dc DW |
282 | To configure GCC: |
283 | ||
284 | @example | |
38209993 LG |
285 | % mkdir @var{objdir} |
286 | % cd @var{objdir} | |
eea81d3e | 287 | % @var{srcdir}/configure [@var{options}] [@var{target}] |
f42974dc DW |
288 | @end example |
289 | ||
290 | ||
ef88b07d | 291 | @heading Target specification |
f42974dc DW |
292 | @itemize @bullet |
293 | @item | |
38209993 | 294 | GCC has code to correctly determine the correct value for @var{target} |
f9047ed3 | 295 | for nearly all native systems. Therefore, we highly recommend you not |
f42974dc DW |
296 | provide a configure target when configuring a native compiler. |
297 | ||
298 | @item | |
6cfb3f16 | 299 | @var{target} must be specified as @option{--target=@var{target}} |
f9047ed3 | 300 | when configuring a cross compiler; examples of valid targets would be |
f42974dc DW |
301 | i960-rtems, m68k-coff, sh-elf, etc. |
302 | ||
303 | @item | |
6cfb3f16 | 304 | Specifying just @var{target} instead of @option{--target=@var{target}} |
38209993 | 305 | implies that the host defaults to @var{target}. |
f42974dc DW |
306 | @end itemize |
307 | ||
308 | ||
ef88b07d | 309 | @heading Options specification |
f42974dc | 310 | |
ef88b07d | 311 | Use @var{options} to override several configure time options for |
80f9249a JM |
312 | GCC@. A list of supported @var{options} follows; @command{configure |
313 | --help} may list other options, but those not listed below may not | |
314 | work and should not normally be used. | |
f42974dc | 315 | |
ef88b07d JM |
316 | @table @code |
317 | @item --prefix=@var{dirname} | |
318 | Specify the toplevel installation | |
f42974dc DW |
319 | directory. This is the recommended way to install the tools into a directory |
320 | other than the default. The toplevel installation directory defaults to | |
6cfb3f16 | 321 | @file{/usr/local}. |
f42974dc | 322 | |
38209993 LG |
323 | We @strong{highly} recommend against @var{dirname} being the same or a |
324 | subdirectory of @var{objdir} or vice versa. | |
f42974dc DW |
325 | |
326 | These additional options control where certain parts of the distribution | |
327 | are installed. Normally you should not need to use these options. | |
ef88b07d | 328 | @table @code |
f42974dc | 329 | |
ab130aa5 JM |
330 | @item --exec-prefix=@var{dirname} |
331 | Specify the toplevel installation directory for architecture-dependent | |
332 | files. The default is @file{@var{prefix}}. | |
333 | ||
334 | @item --bindir=@var{dirname} | |
335 | Specify the installation directory for the executables called by users | |
336 | (such as @command{gcc} and @command{g++}). The default is | |
337 | @file{@var{exec-prefix}/bin}. | |
338 | ||
339 | @item --libdir=@var{dirname} | |
340 | Specify the installation directory for object code libraries and | |
161d7b59 | 341 | internal parts of GCC@. The default is @file{@var{exec-prefix}/lib}. |
ab130aa5 JM |
342 | |
343 | @item --with-slibdir=@var{dirname} | |
344 | Specify the installation directory for the shared libgcc library. The | |
345 | default is @file{@var{libdir}}. | |
346 | ||
347 | @item --infodir=@var{dirname} | |
348 | Specify the installation directory for documentation in info format. | |
349 | The default is @file{@var{prefix}/info}. | |
350 | ||
351 | @item --mandir=@var{dirname} | |
352 | Specify the installation directory for manual pages. The default is | |
353 | @file{@var{prefix}/man}. (Note that the manual pages are only extracts from | |
354 | the full GCC manuals, which are provided in Texinfo format. The | |
355 | @command{g77} manpage is unmaintained and may be out of date; the others | |
356 | are derived by an automatic conversion process from parts of the full | |
357 | manual.) | |
358 | ||
ef88b07d JM |
359 | @item --with-gxx-include-dir=@var{dirname} |
360 | Specify | |
eea81d3e | 361 | the installation directory for G++ header files. The default is |
ecb7d6b3 JM |
362 | @file{@var{prefix}/include/g++-v3}. |
363 | ||
ef88b07d | 364 | @end table |
f42974dc | 365 | |
ef88b07d JM |
366 | @item --with-local-prefix=@var{dirname} |
367 | Specify the | |
6ac48571 JM |
368 | installation directory for local include files. The default is |
369 | @file{/usr/local}. Specify this option if you want the compiler to | |
370 | search directory @file{@var{dirname}/include} for locally installed | |
371 | header files @emph{instead} of @file{/usr/local/include}. | |
372 | ||
373 | You should specify @option{--with-local-prefix} @strong{only} if your | |
374 | site has a different convention (not @file{/usr/local}) for where to put | |
375 | site-specific files. | |
376 | ||
377 | The default value for @option{--with-local-prefix} is @file{/usr/local} | |
378 | regardless of the value of @option{--prefix}. Specifying | |
379 | @option{--prefix} has no effect on which directory GCC searches for | |
380 | local header files. This may seem counterintuitive, but actually it is | |
381 | logical. | |
382 | ||
383 | The purpose of @option{--prefix} is to specify where to @emph{install | |
384 | GCC}. The local header files in @file{/usr/local/include}---if you put | |
161d7b59 | 385 | any in that directory---are not part of GCC@. They are part of other |
6ac48571 JM |
386 | programs---perhaps many others. (GCC installs its own header files in |
387 | another directory which is based on the @option{--prefix} value.) | |
388 | ||
389 | @strong{Do not} specify @file{/usr} as the @option{--with-local-prefix}! | |
390 | The directory you use for @option{--with-local-prefix} @strong{must not} | |
391 | contain any of the system's standard header files. If it did contain | |
392 | them, certain programs would be miscompiled (including GNU Emacs, on | |
393 | certain targets), because this would override and nullify the header | |
394 | file corrections made by the @code{fixincludes} script. | |
395 | ||
396 | Indications are that people who use this option use it based on mistaken | |
397 | ideas of what it is for. People use it as if it specified where to | |
161d7b59 | 398 | install part of GCC@. Perhaps they make this assumption because |
6ac48571 JM |
399 | installing GCC creates the directory. |
400 | ||
6cfb3f16 | 401 | @item --enable-shared[=@var{package}[,@dots{}]] |
0cb98517 AO |
402 | Build shared versions of libraries, if shared libraries are supported on |
403 | the target platform. Unlike GCC 2.95.x and earlier, shared libraries | |
eea81d3e RO |
404 | are enabled by default on all platforms that support shared libraries, |
405 | except for @samp{libobjc} which is built as a static library only by | |
406 | default. | |
0cb98517 AO |
407 | |
408 | If a list of packages is given as an argument, build shared libraries | |
409 | only for the listed packages. For other packages, only static libraries | |
410 | will be built. Package names currently recognized in the GCC tree are | |
411 | @samp{libgcc} (also known as @samp{gcc}), @samp{libstdc++} (not | |
412 | @samp{libstdc++-v3}), @samp{libffi}, @samp{zlib}, @samp{boehm-gc} and | |
413 | @samp{libjava}. Note that @samp{libobjc} does not recognize itself by | |
414 | any name, so, if you list package names in @option{--enable-shared}, | |
eea81d3e | 415 | you will only get static Objective-C libraries. @samp{libf2c} and |
0cb98517 AO |
416 | @samp{libiberty} do not support shared libraries at all. |
417 | ||
418 | Use @option{--disable-shared} to build only static libraries. Note that | |
419 | @option{--disable-shared} does not accept a list of package names as | |
420 | argument, only @option{--enable-shared} does. | |
f42974dc | 421 | |
ef88b07d JM |
422 | @item @anchor{with-gnu-as}--with-gnu-as |
423 | Specify that the compiler should assume that the | |
767094dd | 424 | assembler it finds is the GNU assembler. However, this does not modify |
38209993 | 425 | the rules to find an assembler and will result in confusion if found |
8c26c999 JM |
426 | assembler is not actually the GNU assembler. (Confusion will also |
427 | result if the compiler finds the GNU assembler but has not been | |
428 | configured with @option{--with-gnu-as}.) If you have more than one | |
38209993 | 429 | assembler installed on your system, you may want to use this option in |
eea81d3e | 430 | connection with @option{--with-as=@var{pathname}}. |
38209993 | 431 | |
8c26c999 JM |
432 | The systems where it makes a difference whether you use the GNU assembler are |
433 | @samp{hppa1.0-@var{any}-@var{any}}, @samp{hppa1.1-@var{any}-@var{any}}, | |
434 | @samp{i386-@var{any}-sysv}, @samp{i386-@var{any}-isc}, | |
435 | @samp{i860-@var{any}-bsd}, @samp{m68k-bull-sysv}, | |
436 | @samp{m68k-hp-hpux}, @samp{m68k-sony-bsd}, | |
437 | @samp{m68k-altos-sysv}, @samp{m68000-hp-hpux}, | |
438 | @samp{m68000-att-sysv}, @samp{@var{any}-lynx-lynxos}, | |
439 | and @samp{mips-@var{any}}. | |
440 | On any other system, @option{--with-gnu-as} has no effect. | |
441 | ||
442 | On the systems listed above (except for the HP-PA, for ISC on the | |
443 | 386, and for @samp{mips-sgi-irix5.*}), if you use the GNU assembler, | |
444 | you should also use the GNU linker (and specify @option{--with-gnu-ld}). | |
445 | ||
eea81d3e | 446 | @item --with-as=@var{pathname} |
ef88b07d | 447 | Specify that the |
38209993 LG |
448 | compiler should use the assembler pointed to by @var{pathname}, rather |
449 | than the one found by the standard rules to find an assembler, which | |
450 | are: | |
f42974dc DW |
451 | @itemize @bullet |
452 | @item | |
38209993 LG |
453 | Check the |
454 | @file{@var{exec_prefix}/lib/gcc-lib/@var{target}/@var{version}} | |
455 | directory, where @var{exec_prefix} defaults to @var{prefix} which | |
456 | defaults to @file{/usr/local} unless overridden by the | |
eea81d3e | 457 | @option{--prefix=@var{pathname}} switch described above. @var{target} is the |
b953cc4b | 458 | target system triple, such as @samp{sparc-sun-solaris2.7}, and |
eea81d3e | 459 | @var{version} denotes the GCC version, such as 3.0. |
f42974dc | 460 | @item |
e979f9e8 | 461 | Check operating system specific directories (e.g.@: @file{/usr/ccs/bin} on |
250d5688 | 462 | Sun Solaris 2). |
f42974dc | 463 | @end itemize |
767094dd | 464 | Note that these rules do not check for the value of @env{PATH}. You may |
38209993 LG |
465 | want to use @option{--with-as} if no assembler is installed in the |
466 | directories listed above, or if you have multiple assemblers installed | |
467 | and want to choose one that is not found by the above rules. | |
f42974dc | 468 | |
ef88b07d JM |
469 | @item @anchor{with-gnu-ld}--with-gnu-ld |
470 | Same as @uref{#with-gnu-as,,@option{--with-gnu-as}} | |
38209993 | 471 | but for linker. |
20293b4c | 472 | |
f42974dc | 473 | |
eea81d3e | 474 | @item --with-ld=@var{pathname} |
ef88b07d | 475 | Same as |
38209993 | 476 | @option{--with-as}, but for the linker. |
f42974dc | 477 | |
ef88b07d JM |
478 | @item --with-stabs |
479 | Specify that stabs debugging | |
38209993 LG |
480 | information should be used instead of whatever format the host normally |
481 | uses. Normally GCC uses the same debug format as the host system. | |
f42974dc | 482 | |
8c26c999 JM |
483 | On MIPS based systems and on Alphas, you must specify whether you want |
484 | GCC to create the normal ECOFF debugging format, or to use BSD-style | |
485 | stabs passed through the ECOFF symbol table. The normal ECOFF debug | |
161d7b59 JM |
486 | format cannot fully handle languages other than C@. BSD stabs format can |
487 | handle other languages, but it only works with the GNU debugger GDB@. | |
8c26c999 JM |
488 | |
489 | Normally, GCC uses the ECOFF debugging format by default; if you | |
161d7b59 | 490 | prefer BSD stabs, specify @option{--with-stabs} when you configure GCC@. |
8c26c999 JM |
491 | |
492 | No matter which default you choose when you configure GCC, the user | |
493 | can use the @option{-gcoff} and @option{-gstabs+} options to specify explicitly | |
494 | the debug format for a particular compilation. | |
495 | ||
496 | @option{--with-stabs} is meaningful on the ISC system on the 386, also, if | |
497 | @option{--with-gas} is used. It selects use of stabs debugging | |
498 | information embedded in COFF output. This kind of debugging information | |
499 | supports C++ well; ordinary COFF debugging information does not. | |
500 | ||
501 | @option{--with-stabs} is also meaningful on 386 systems running SVR4. It | |
502 | selects use of stabs debugging information embedded in ELF output. The | |
503 | C++ compiler currently (2.6.0) does not support the DWARF debugging | |
504 | information normally used on 386 SVR4 platforms; stabs provide a | |
505 | workable alternative. This requires gas and gdb, as the normal SVR4 | |
506 | tools can not generate or interpret stabs. | |
507 | ||
eea81d3e | 508 | @item --disable-multilib |
ef88b07d | 509 | Specify that multiple target |
eea81d3e RO |
510 | libraries to support different target variants, calling |
511 | conventions, etc should not be built. The default is to build a | |
512 | predefined set of them. | |
f42974dc | 513 | |
e8515283 DE |
514 | Some targets provide finer-grained control over which multilibs are built |
515 | (e.g., @option{--disable-softfloat}): | |
516 | @table @code | |
517 | ||
518 | @item arc-*-elf* | |
519 | biendian. | |
520 | ||
521 | @item arm-*-* | |
522 | fpu, 26bit, underscore, interwork, biendian, nofmult. | |
523 | ||
524 | @item m68*-*-* | |
525 | softfloat, m68881, m68000, m68020. | |
526 | ||
527 | @item mips*-*-* | |
528 | single-float, biendian, softfloat. | |
529 | ||
530 | @item powerpc*-*-*, rs6000*-*-* | |
531 | aix64, pthread, softfloat, powercpu, powerpccpu, powerpcos, biendian, | |
532 | sysv, aix. | |
533 | ||
534 | @end table | |
535 | ||
ef88b07d JM |
536 | @item --enable-threads |
537 | Specify that the target | |
38209993 LG |
538 | supports threads. This affects the Objective-C compiler and runtime |
539 | library, and exception handling for other languages like C++ and Java. | |
6ac48571 | 540 | On some systems, this is the default. |
f42974dc | 541 | |
f6160ed5 LR |
542 | In general, the best (and, in many cases, the only known) threading |
543 | model available will be configured for use. Beware that on some | |
544 | systems, gcc has not been taught what threading models are generally | |
3c6bb1db LR |
545 | available for the system. In this case, @option{--enable-threads} is an |
546 | alias for @option{--enable-threads=single}. | |
f6160ed5 LR |
547 | |
548 | @item --disable-threads | |
549 | Specify that threading support should be disabled for the system. | |
3c6bb1db | 550 | This is an alias for @option{--enable-threads=single}. |
f6160ed5 | 551 | |
ef88b07d JM |
552 | @item --enable-threads=@var{lib} |
553 | Specify that | |
38209993 LG |
554 | @var{lib} is the thread support library. This affects the Objective-C |
555 | compiler and runtime library, and exception handling for other languages | |
f85b8d1a JM |
556 | like C++ and Java. The possibilities for @var{lib} are: |
557 | ||
558 | @table @code | |
559 | @item aix | |
560 | AIX thread support. | |
561 | @item dce | |
562 | DCE thread support. | |
f85b8d1a | 563 | @item mach |
eea81d3e | 564 | Generic MACH thread support, known to work on NeXTSTEP@. (Please note |
3c6bb1db | 565 | that the file needed to support this configuration, @file{gthr-mach.h}, is |
f6160ed5 LR |
566 | missing and thus this setting will cause a known bootstrap failure.) |
567 | @item no | |
568 | This is an alias for @samp{single}. | |
f85b8d1a | 569 | @item posix |
c771326b | 570 | Generic POSIX thread support. |
f85b8d1a | 571 | @item pthreads |
f6160ed5 LR |
572 | Same as @samp{posix} on arm*-*-linux*, *-*-chorusos* and *-*-freebsd* |
573 | only. A future release of gcc might remove this alias or extend it | |
574 | to all platforms. | |
575 | @item rtems | |
576 | RTEMS thread support. | |
f85b8d1a JM |
577 | @item single |
578 | Disable thread support, should work for all platforms. | |
579 | @item solaris | |
eea81d3e | 580 | Sun Solaris 2 thread support. |
f85b8d1a JM |
581 | @item vxworks |
582 | VxWorks thread support. | |
583 | @item win32 | |
584 | Microsoft Win32 API thread support. | |
585 | @end table | |
f42974dc | 586 | |
ef88b07d JM |
587 | @item --with-cpu=@var{cpu} |
588 | Specify which cpu variant the | |
f42974dc DW |
589 | compiler should generate code for by default. This is currently |
590 | only supported on the some ports, specifically arm, powerpc, and | |
161d7b59 | 591 | SPARC@. If configure does not recognize the model name (e.g.@: arm700, |
f42974dc DW |
592 | 603e, or ultrasparc) you provide, please check the configure script |
593 | for a complete list of supported models. | |
594 | ||
ef88b07d JM |
595 | @item --enable-target-optspace |
596 | Specify that target | |
38209993 LG |
597 | libraries should be optimized for code space instead of code speed. |
598 | This is the default for the m32r platform. | |
f42974dc | 599 | |
ab130aa5 JM |
600 | @item --disable-cpp |
601 | Specify that a user visible @command{cpp} program should not be installed. | |
602 | ||
603 | @item --with-cpp-install-dir=@var{dirname} | |
604 | Specify that the user visible @command{cpp} program should be installed | |
605 | in @file{@var{prefix}/@var{dirname}/cpp}, in addition to @var{bindir}. | |
f42974dc | 606 | |
ef88b07d JM |
607 | @item --enable-maintainer-mode |
608 | The build rules that | |
6cfb3f16 | 609 | regenerate the GCC master message catalog @file{gcc.pot} are normally |
767094dd JM |
610 | disabled. This is because it can only be rebuilt if the complete source |
611 | tree is present. If you have changed the sources and want to rebuild the | |
6ac48571 | 612 | catalog, configuring with @option{--enable-maintainer-mode} will enable |
767094dd | 613 | this. Note that you need a recent version of the @code{gettext} tools |
6ac48571 JM |
614 | to do so. |
615 | ||
ef88b07d JM |
616 | @item --enable-version-specific-runtime-libs |
617 | Specify | |
38209993 LG |
618 | that runtime libraries should be installed in the compiler specific |
619 | subdirectory (@file{@var{libsubdir}}) rather than the usual places. In | |
eea81d3e | 620 | addition, @samp{libstdc++}'s include files will be installed in |
38209993 | 621 | @file{@var{libsubdir}/include/g++} unless you overruled it by using |
6cfb3f16 | 622 | @option{--with-gxx-include-dir=@var{dirname}}. Using this option is |
38209993 | 623 | particularly useful if you intend to use several versions of GCC in |
eea81d3e RO |
624 | parallel. This is currently supported by @samp{libf2c} and |
625 | @samp{libstdc++}, and is the default for @samp{libobjc} which cannot be | |
626 | changed in this case. | |
38209993 | 627 | |
ef88b07d JM |
628 | @item --enable-languages=@var{lang1},@var{lang2},@dots{} |
629 | Specify that only a particular subset of compilers and | |
767094dd | 630 | their runtime libraries should be built. For a list of valid values for |
6cfb3f16 | 631 | @var{langN} you can issue the following command in the |
eea81d3e RO |
632 | @file{gcc} directory of your GCC source tree:@* |
633 | @example | |
634 | grep language= */config-lang.in | |
635 | @end example | |
636 | Currently, you can use any of the following: | |
e23381df | 637 | @code{ada}, @code{c}, @code{c++}, @code{f77}, @code{java}, @code{objc}. |
f42974dc | 638 | @code{CHILL} is not currently maintained, and will almost |
e23381df GB |
639 | certainly fail to compile. Building the Ada compiler has special |
640 | requirements, see below.@* | |
38209993 | 641 | If you do not pass this flag, all languages available in the @file{gcc} |
6cfb3f16 | 642 | sub-tree will be configured. Re-defining @code{LANGUAGES} when calling |
ef88b07d | 643 | @samp{make bootstrap} @strong{does not} work anymore, as those |
38209993 | 644 | language sub-directories might not have been configured! |
f42974dc | 645 | |
ef88b07d JM |
646 | @item --disable-libgcj |
647 | Specify that the run-time libraries | |
f42974dc DW |
648 | used by GCJ should not be built. This is useful in case you intend |
649 | to use GCJ with some other run-time, or you're going to install it | |
650 | separately, or it just happens not to build on your particular | |
6c0a4eab | 651 | machine. In general, if the Java front end is enabled, the GCJ |
f42974dc | 652 | libraries will be enabled too, unless they're known to not work on |
eea81d3e | 653 | the target platform. If GCJ is enabled but @samp{libgcj} isn't built, you |
f42974dc | 654 | may need to port it; in this case, before modifying the top-level |
eea81d3e | 655 | @file{configure.in} so that @samp{libgcj} is enabled by default on this platform, |
f42974dc DW |
656 | you may use @option{--enable-libgcj} to override the default. |
657 | ||
ef88b07d JM |
658 | @item --with-dwarf2 |
659 | Specify that the compiler should | |
eea81d3e | 660 | use DWARF 2 debugging information as the default. |
f85b8d1a JM |
661 | |
662 | @item --enable-win32-registry | |
eea81d3e | 663 | @itemx --enable-win32-registry=@var{key} |
f85b8d1a | 664 | @itemx --disable-win32-registry |
6cfb3f16 | 665 | The @option{--enable-win32-registry} option enables Windows-hosted GCC |
f85b8d1a JM |
666 | to look up installations paths in the registry using the following key: |
667 | ||
668 | @smallexample | |
eea81d3e | 669 | @code{HKEY_LOCAL_MACHINE\SOFTWARE\Free Software Foundation\@var{key}} |
f85b8d1a JM |
670 | @end smallexample |
671 | ||
eea81d3e RO |
672 | @var{key} defaults to GCC version number, and can be overridden by the |
673 | @option{--enable-win32-registry=@var{key}} option. Vendors and distributors | |
f85b8d1a JM |
674 | who use custom installers are encouraged to provide a different key, |
675 | perhaps one comprised of vendor name and GCC version number, to | |
767094dd | 676 | avoid conflict with existing installations. This feature is enabled |
6cfb3f16 | 677 | by default, and can be disabled by @option{--disable-win32-registry} |
f85b8d1a JM |
678 | option. This option has no effect on the other hosts. |
679 | ||
680 | @item --nfp | |
681 | Specify that the machine does not have a floating point unit. This | |
682 | option only applies to @samp{m68k-sun-sunos@var{n}} and | |
6cfb3f16 | 683 | @samp{m68k-isi-bsd}. On any other system, @option{--nfp} has no effect. |
f85b8d1a JM |
684 | |
685 | @item --enable-checking | |
686 | @itemx --enable-checking=@var{list} | |
687 | When you specify this option, the compiler is built to perform checking | |
688 | of tree node types when referencing fields of that node, and some other | |
689 | internal consistency checks. This does not change the generated code, | |
690 | but adds error checking within the compiler. This will slow down the | |
691 | compiler and may only work properly if you are building the compiler | |
161d7b59 | 692 | with GCC@. This is on by default when building from CVS or snapshots, |
f85b8d1a JM |
693 | but off for releases. More control over the checks may be had by |
694 | specifying @var{list}; the categories of checks available are | |
695 | @samp{misc}, @samp{tree}, @samp{gc}, @samp{rtl} and @samp{gcac}. The | |
696 | default when @var{list} is not specified is @samp{misc,tree,gc}; the | |
697 | checks @samp{rtl} and @samp{gcac} are very expensive. | |
698 | ||
699 | @item --enable-nls | |
700 | @itemx --disable-nls | |
6cfb3f16 | 701 | The @option{--enable-nls} option enables Native Language Support (NLS), |
f85b8d1a | 702 | which lets GCC output diagnostics in languages other than American |
767094dd | 703 | English. Native Language Support is enabled by default if not doing a |
161d7b59 | 704 | canadian cross build. The @option{--disable-nls} option disables NLS@. |
f85b8d1a JM |
705 | |
706 | @item --with-included-gettext | |
c771326b | 707 | If NLS is enabled, the @option{--with-included-gettext} option causes the build |
021c4bfd | 708 | procedure to prefer its copy of GNU @command{gettext}. |
f85b8d1a JM |
709 | |
710 | @item --with-catgets | |
711 | If NLS is enabled, and if the host lacks @code{gettext} but has the | |
712 | inferior @code{catgets} interface, the GCC build procedure normally | |
713 | ignores @code{catgets} and instead uses GCC's copy of the GNU | |
6cfb3f16 | 714 | @code{gettext} library. The @option{--with-catgets} option causes the |
f85b8d1a | 715 | build procedure to use the host's @code{catgets} in this situation. |
80f9249a JM |
716 | |
717 | @item --with-system-zlib | |
718 | Use installed zlib rather than that included with GCC@. This option | |
719 | only applies if the Java front end is being built. | |
ef88b07d | 720 | @end table |
f42974dc DW |
721 | |
722 | Some options which only apply to building cross compilers: | |
ef88b07d JM |
723 | @table @code |
724 | @item --with-headers=@var{dir} | |
725 | Specifies a directory | |
38209993 | 726 | which has target include files. |
f42974dc | 727 | @emph{This options is required} when building a cross |
38209993 LG |
728 | compiler, if @file{@var{prefix}/@var{target}/sys-include} doesn't pre-exist. |
729 | These include files will be copied into the @file{gcc} install directory. | |
730 | Fixincludes will be run on these files to make them compatible with | |
eea81d3e | 731 | GCC. |
ef88b07d | 732 | @item --with-libs=``@var{dir1} @var{dir2} @dots{} @var{dirN}'' |
38209993 LG |
733 | Specifies a list of directories which contain the target runtime |
734 | libraries. These libraries will be copied into the @file{gcc} install | |
735 | directory. | |
ef88b07d | 736 | @item --with-newlib |
eea81d3e | 737 | Specifies that @samp{newlib} is |
38209993 | 738 | being used as the target C library. This causes @code{__eprintf} to be |
eea81d3e RO |
739 | omitted from @file{libgcc.a} on the assumption that it will be provided by |
740 | @samp{newlib}. | |
ef88b07d | 741 | @end table |
f9047ed3 | 742 | |
38209993 LG |
743 | Note that each @option{--enable} option has a corresponding |
744 | @option{--disable} option and that each @option{--with} option has a | |
745 | corresponding @option{--without} option. | |
f42974dc DW |
746 | |
747 | @html | |
748 | <hr> | |
749 | <p> | |
750 | @end html | |
751 | @ifhtml | |
752 | @uref{./index.html,,Return to the GCC Installation page} | |
753 | @end ifhtml | |
754 | @end ifset | |
755 | ||
756 | @c ***Building**************************************************************** | |
6cfb3f16 | 757 | @ifnothtml |
f42974dc DW |
758 | @comment node-name, next, previous, up |
759 | @node Building, Testing, Configuration, Installing GCC | |
6cfb3f16 | 760 | @end ifnothtml |
f42974dc DW |
761 | @ifset buildhtml |
762 | @html | |
763 | <h1 align="center">Installing GCC: Building</h1> | |
764 | @end html | |
765 | @ifnothtml | |
766 | @chapter Building | |
767 | @end ifnothtml | |
768 | @cindex Installing GCC: Building | |
769 | ||
770 | Now that GCC is configured, you are ready to build the compiler and | |
771 | runtime libraries. | |
772 | ||
773 | We @strong{highly} recommend that GCC be built using GNU make; | |
e23381df GB |
774 | other versions may work, then again they might not. |
775 | GNU make is required for compiling GNAT, the Ada compiler. | |
f42974dc DW |
776 | |
777 | (For example, many broken versions of make will fail if you use the | |
b8df899a JM |
778 | recommended setup where @var{objdir} is different from @var{srcdir}. |
779 | Other broken versions may recompile parts of the compiler when | |
780 | installing the compiler.) | |
f42974dc | 781 | |
b8df899a | 782 | Some commands executed when making the compiler may fail (return a |
df2a54e9 | 783 | nonzero status) and be ignored by @code{make}. These failures, which |
b8df899a JM |
784 | are often due to files that were not found, are expected, and can safely |
785 | be ignored. | |
786 | ||
787 | It is normal to have compiler warnings when compiling certain files. | |
788 | Unless you are a GCC developer, you can generally ignore these warnings | |
789 | unless they cause compilation to fail. | |
790 | ||
791 | On certain old systems, defining certain environment variables such as | |
6cfb3f16 | 792 | @env{CC} can interfere with the functioning of @command{make}. |
b8df899a JM |
793 | |
794 | If you encounter seemingly strange errors when trying to build the | |
795 | compiler in a directory other than the source directory, it could be | |
796 | because you have previously configured the compiler in the source | |
797 | directory. Make sure you have done all the necessary preparations. | |
798 | ||
799 | If you build GCC on a BSD system using a directory stored in an old System | |
800 | V file system, problems may occur in running @code{fixincludes} if the | |
801 | System V file system doesn't support symbolic links. These problems | |
802 | result in a failure to fix the declaration of @code{size_t} in | |
803 | @file{sys/types.h}. If you find that @code{size_t} is a signed type and | |
804 | that type mismatches occur, this could be the cause. | |
805 | ||
161d7b59 | 806 | The solution is not to use such a directory for building GCC@. |
f42974dc | 807 | |
f85b8d1a JM |
808 | When building from CVS or snapshots, or if you modify parser sources, |
809 | you need the Bison parser generator installed. Any version 1.25 or | |
810 | later should work; older versions may also work. If you do not modify | |
811 | parser sources, releases contain the Bison-generated files and you do | |
812 | not need Bison installed to build them. | |
813 | ||
814 | When building from CVS or snapshots, or if you modify Texinfo | |
815 | documentation, you need version 4.0 or later of Texinfo installed if you | |
816 | want Info documentation to be regenerated. Releases contain Info | |
817 | documentation pre-built for the unmodified documentation in the release. | |
818 | ||
f42974dc DW |
819 | @section Building a native compiler |
820 | ||
f9047ed3 | 821 | For a native build issue the command @samp{make bootstrap}. This |
f42974dc DW |
822 | will build the entire GCC system, which includes the following steps: |
823 | ||
824 | @itemize @bullet | |
825 | @item | |
826 | Build host tools necessary to build the compiler such as texinfo, bison, | |
827 | gperf. | |
828 | ||
829 | @item | |
830 | Build target tools for use by the compiler such as binutils (bfd, | |
eea81d3e RO |
831 | binutils, gas, gprof, ld, and opcodes) |
832 | if they have been individually linked | |
f42974dc DW |
833 | or moved into the top level GCC source tree before configuring. |
834 | ||
835 | @item | |
836 | Perform a 3-stage bootstrap of the compiler. | |
837 | ||
838 | @item | |
839 | Perform a comparison test of the stage2 and stage3 compilers. | |
840 | ||
841 | @item | |
842 | Build runtime libraries using the stage3 compiler from the previous step. | |
f9047ed3 | 843 | |
f42974dc DW |
844 | @end itemize |
845 | ||
38209993 LG |
846 | If you are short on disk space you might consider @samp{make |
847 | bootstrap-lean} instead. This is identical to @samp{make | |
848 | bootstrap} except that object files from the stage1 and | |
f42974dc DW |
849 | stage2 of the 3-stage bootstrap of the compiler are deleted as |
850 | soon as they are no longer needed. | |
851 | ||
852 | ||
853 | If you want to save additional space during the bootstrap and in | |
854 | the final installation as well, you can build the compiler binaries | |
38209993 LG |
855 | without debugging information with @samp{make CFLAGS='-O' LIBCFLAGS='-g |
856 | -O2' LIBCXXFLAGS='-g -O2 -fno-implicit-templates' bootstrap}. This will save | |
f42974dc DW |
857 | roughly 40% of disk space both for the bootstrap and the final installation. |
858 | (Libraries will still contain debugging information.) | |
859 | ||
eea81d3e RO |
860 | If you wish to use non-default GCC flags when compiling the stage2 and |
861 | stage3 compilers, set @code{BOOT_CFLAGS} on the command line when doing | |
f85b8d1a JM |
862 | @samp{make bootstrap}. Non-default optimization flags are less well |
863 | tested here than the default of @samp{-g -O2}, but should still work. | |
864 | In a few cases, you may find that you need to specify special flags such | |
865 | as @option{-msoft-float} here to complete the bootstrap; or, if the | |
866 | native compiler miscompiles the stage1 compiler, you may need to work | |
867 | around this, by choosing @code{BOOT_CFLAGS} to avoid the parts of the | |
868 | stage1 compiler that were miscompiled, or by using @samp{make | |
869 | bootstrap4} to increase the number of stages of bootstrap. | |
870 | ||
6cfb3f16 | 871 | If you used the flag @option{--enable-languages=@dots{}} to restrict |
f42974dc | 872 | the compilers to be built, only those you've actually enabled will be |
767094dd | 873 | built. This will of course only build those runtime libraries, for |
f42974dc | 874 | which the particular compiler has been built. Please note, |
eea81d3e | 875 | that re-defining @env{LANGUAGES} when calling @samp{make bootstrap} |
ef88b07d | 876 | @strong{does not} work anymore! |
f42974dc | 877 | |
f85b8d1a | 878 | If the comparison of stage2 and stage3 fails, this normally indicates |
eea81d3e | 879 | that the stage2 compiler has compiled GCC incorrectly, and is therefore |
f85b8d1a JM |
880 | a potentially serious bug which you should investigate and report. (On |
881 | a few systems, meaningful comparison of object files is impossible; they | |
882 | always appear ``different''. If you encounter this problem, you will | |
883 | need to disable comparison in the @file{Makefile}.) | |
f42974dc DW |
884 | |
885 | @section Building a cross compiler | |
886 | ||
887 | We recommend reading the | |
888 | @uref{http://www.objsw.com/CrossGCC/,,crossgcc FAQ} | |
889 | for information about building cross compilers. | |
890 | ||
891 | When building a cross compiler, it is not generally possible to do a | |
892 | 3-stage bootstrap of the compiler. This makes for an interesting problem | |
161d7b59 | 893 | as parts of GCC can only be built with GCC@. |
f42974dc DW |
894 | |
895 | To build a cross compiler, we first recommend building and installing a | |
896 | native compiler. You can then use the native GCC compiler to build the | |
897 | cross compiler. | |
898 | ||
899 | Assuming you have already installed a native copy of GCC and configured | |
6cfb3f16 | 900 | your cross compiler, issue the command @command{make}, which performs the |
f42974dc DW |
901 | following steps: |
902 | ||
903 | @itemize @bullet | |
904 | @item | |
905 | Build host tools necessary to build the compiler such as texinfo, bison, | |
906 | gperf. | |
907 | ||
908 | @item | |
909 | Build target tools for use by the compiler such as binutils (bfd, | |
910 | binutils, gas, gprof, ld, and opcodes) | |
911 | if they have been individually linked or moved into the top level GCC source | |
912 | tree before configuring. | |
913 | ||
914 | @item | |
915 | Build the compiler (single stage only). | |
916 | ||
917 | @item | |
918 | Build runtime libraries using the compiler from the previous step. | |
919 | @end itemize | |
920 | ||
921 | Note that if an error occurs in any step the make process will exit. | |
922 | ||
923 | @section Building in parallel | |
924 | ||
38209993 LG |
925 | If you have a multiprocessor system you can use @samp{make bootstrap |
926 | MAKE="make -j 2" -j 2} or just @samp{make -j 2 bootstrap} | |
927 | for GNU Make 3.79 and above instead of just @samp{make bootstrap} | |
161d7b59 | 928 | when building GCC@. You can use a bigger number instead of two if |
f42974dc DW |
929 | you like. In most cases, it won't help to use a number bigger than |
930 | the number of processors in your machine. | |
931 | ||
e23381df GB |
932 | @section Building the Ada compiler |
933 | ||
934 | In order to build GNAT, the Ada compiler, you need a working GNAT | |
935 | compiler, since the Ada front end is written in Ada (with some | |
936 | GNAT-specific extensions), and GNU make. | |
937 | ||
938 | However, you do not need a full installation of GNAT, just the GNAT | |
939 | binary @file{gnat1}, a copy of @file{gnatbind}, and a compiler driver | |
940 | which can deal with Ada input (by invoking the @file{gnat1} binary). | |
941 | You can specify this compiler driver by setting the @env{ADAC} | |
942 | environment variable at the configure step. @command{configure} can | |
943 | detect the driver automatically if it has got a common name such as | |
944 | @command{gcc} or @command{gnatgcc}. Of course, you still need a working | |
945 | C compiler (the compiler driver can be different or not). | |
946 | ||
947 | Additional build tools (such as @command{gnatmake}) or a working GNAT | |
948 | run-time library installation are usually @emph{not} required. However, | |
949 | if you want to boostrap the compiler using a minimal version of GNAT, | |
950 | you have to issue the following commands before invoking @samp{make | |
951 | boostrap} (this assumes that you start with an unmodified and consistent | |
952 | source distribution): | |
953 | ||
954 | @example | |
955 | cd @var{srcdir}/gcc/ada | |
956 | touch treeprs.ads [es]info.h nmake.ad[bs] | |
957 | @end example | |
958 | ||
959 | At the moment, the GNAT library and several tools for GNAT are not built | |
960 | by @samp{make bootstrap}. You have to invoke | |
961 | @samp{make gnatlib_and_tools} in the @file{@var{objdir}/gcc} | |
962 | subdirectory before proceeding with the next steps. | |
963 | ||
964 | For example, you can build a native Ada compiler by issuing the | |
965 | following commands (assuming @command{make} is GNU make): | |
966 | ||
967 | @example | |
968 | cd @var{objdir} | |
969 | @var{srcdir}/configure --enable-languages=c,ada | |
970 | cd @var{srcdir}/gcc/ada | |
971 | touch treeprs.ads [es]info.h nmake.ad[bs] | |
972 | cd @var{objdir} | |
973 | make bootstrap | |
974 | cd gcc | |
975 | make gnatlib_and_tools | |
976 | cd .. | |
977 | @end example | |
978 | ||
979 | Currently, when compiling the Ada front end, you cannot use the parallel | |
980 | build feature described in the previous section. | |
981 | ||
f42974dc DW |
982 | @html |
983 | <hr> | |
984 | <p> | |
985 | @end html | |
986 | @ifhtml | |
987 | @uref{./index.html,,Return to the GCC Installation page} | |
988 | @end ifhtml | |
989 | @end ifset | |
990 | ||
991 | @c ***Testing***************************************************************** | |
6cfb3f16 | 992 | @ifnothtml |
f42974dc DW |
993 | @comment node-name, next, previous, up |
994 | @node Testing, Final install, Building, Installing GCC | |
6cfb3f16 | 995 | @end ifnothtml |
f42974dc DW |
996 | @ifset testhtml |
997 | @html | |
998 | <h1 align="center">Installing GCC: Testing</h1> | |
999 | @end html | |
1000 | @ifnothtml | |
1001 | @chapter Installing GCC: Testing | |
1002 | @end ifnothtml | |
1003 | @cindex Testing | |
1004 | @cindex Installing GCC: Testing | |
1005 | @cindex Testsuite | |
1006 | ||
767094dd | 1007 | Before you install GCC, you might wish to run the testsuite. This |
f42974dc DW |
1008 | step is optional and may require you to download additional software. |
1009 | ||
f9047ed3 JM |
1010 | First, you must have @uref{download.html,,downloaded the testsuites}. |
1011 | The full distribution contains testsuites; only if you downloaded the | |
f42974dc DW |
1012 | ``core'' compiler plus any front ends, you do not have the testsuites. |
1013 | ||
1014 | Second, you must have a @uref{http://www.gnu.org/software/dejagnu/,,current version of DejaGnu} installed; | |
1015 | dejagnu 1.3 is not sufficient. | |
1016 | ||
1017 | Now you may need specific preparations: | |
1018 | ||
1019 | @itemize @bullet | |
f42974dc DW |
1020 | |
1021 | @item | |
ecb7d6b3 | 1022 | The following environment variables may need to be set appropriately, as in |
f42974dc | 1023 | the following example (which assumes that DejaGnu has been installed |
6cfb3f16 | 1024 | under @file{/usr/local}): |
f42974dc DW |
1025 | |
1026 | @example | |
1027 | TCL_LIBRARY = /usr/local/share/tcl8.0 | |
1028 | DEJAGNULIBS = /usr/local/share/dejagnu | |
1029 | @end example | |
1030 | ||
1031 | On systems such as Cygwin, these paths are required to be actual | |
1032 | paths, not mounts or links; presumably this is due to some lack of | |
1033 | portability in the DejaGnu code. | |
1034 | ||
ecb7d6b3 JM |
1035 | If the directories where @command{runtest} and @command{expect} were |
1036 | installed are in the @env{PATH}, it should not be necessary to set these | |
1037 | environment variables. | |
1038 | ||
f42974dc DW |
1039 | @end itemize |
1040 | ||
1041 | Finally, you can run the testsuite (which may take a long time): | |
1042 | @example | |
ef88b07d | 1043 | cd @var{objdir}; make -k check |
f42974dc DW |
1044 | @end example |
1045 | ||
1046 | The testing process will try to test as many components in the GCC | |
2147b154 | 1047 | distribution as possible, including the C, C++, Objective-C and Fortran |
ecb7d6b3 | 1048 | compilers as well as the C++ and Java runtime libraries. |
f42974dc DW |
1049 | |
1050 | @section How can I run the test suite on selected tests? | |
1051 | ||
1052 | As a first possibility to cut down the number of tests that are run it is | |
38209993 | 1053 | possible to use @samp{make check-gcc} or @samp{make check-g++} |
eea81d3e | 1054 | in the @file{gcc} subdirectory of the object directory. To further cut down the |
f42974dc DW |
1055 | tests the following is possible: |
1056 | ||
1057 | @example | |
6cfb3f16 | 1058 | make check-gcc RUNTESTFLAGS="execute.exp @var{other-options}" |
f42974dc DW |
1059 | @end example |
1060 | ||
eea81d3e | 1061 | This will run all @command{gcc} execute tests in the testsuite. |
f42974dc DW |
1062 | |
1063 | @example | |
6cfb3f16 | 1064 | make check-g++ RUNTESTFLAGS="old-deja.exp=9805* @var{other-options}" |
f42974dc DW |
1065 | @end example |
1066 | ||
eea81d3e | 1067 | This will run the @command{g++} ``old-deja'' tests in the testsuite where the filename |
6cfb3f16 | 1068 | matches @samp{9805*}. |
f42974dc | 1069 | |
6cfb3f16 JM |
1070 | The @file{*.exp} files are located in the testsuite directories of the GCC |
1071 | source, the most important ones being @file{compile.exp}, | |
1072 | @file{execute.exp}, @file{dg.exp} and @file{old-deja.exp}. | |
1073 | To get a list of the possible @file{*.exp} files, pipe the | |
38209993 | 1074 | output of @samp{make check} into a file and look at the |
6cfb3f16 | 1075 | @samp{Running @dots{} .exp} lines. |
f42974dc DW |
1076 | |
1077 | @section How to interpret test results | |
1078 | ||
6cfb3f16 | 1079 | After the testsuite has run you'll find various @file{*.sum} and @file{*.log} |
767094dd | 1080 | files in the testsuite subdirectories. The @file{*.log} files contain a |
f42974dc | 1081 | detailed log of the compiler invocations and the corresponding |
767094dd | 1082 | results, the @file{*.sum} files summarize the results. These summaries list |
f42974dc DW |
1083 | all the tests that have been run with a corresponding status code: |
1084 | ||
1085 | @itemize @bullet | |
1086 | @item | |
1087 | PASS: the test passed as expected | |
1088 | @item | |
1089 | XPASS: the test unexpectedly passed | |
1090 | @item | |
1091 | FAIL: the test unexpectedly failed | |
1092 | @item | |
1093 | XFAIL: the test failed as expected | |
1094 | @item | |
1095 | UNSUPPORTED: the test is not supported on this platform | |
1096 | @item | |
1097 | ERROR: the testsuite detected an error | |
1098 | @item | |
1099 | WARNING: the testsuite detected a possible problem | |
1100 | @end itemize | |
1101 | ||
38209993 LG |
1102 | It is normal for some tests to report unexpected failures. At the |
1103 | current time our testing harness does not allow fine grained control | |
1104 | over whether or not a test is expected to fail. We expect to fix this | |
1105 | problem in future releases. | |
f42974dc DW |
1106 | |
1107 | ||
1108 | @section Submitting test results | |
1109 | ||
1110 | If you want to report the results to the GCC project, use the | |
767094dd | 1111 | @file{contrib/test_summary} shell script. Start it in the @var{objdir} with |
f42974dc DW |
1112 | |
1113 | @example | |
6cfb3f16 JM |
1114 | @var{srcdir}/contrib/test_summary -p your_commentary.txt \ |
1115 | -m gcc-testresults@@gcc.gnu.org |sh | |
f42974dc DW |
1116 | @end example |
1117 | ||
6cfb3f16 | 1118 | This script uses the @command{Mail} program to send the results, so |
767094dd | 1119 | make sure it is in your @env{PATH}. The file @file{your_commentary.txt} is |
f42974dc | 1120 | prepended to the testsuite summary and should contain any special |
767094dd | 1121 | remarks you have on your results or your build environment. Please |
f42974dc | 1122 | do not edit the testsuite result block or the subject line, as these |
f9047ed3 | 1123 | messages are automatically parsed and presented at the |
f42974dc DW |
1124 | @uref{http://gcc.gnu.org/testresults/,,GCC testresults} web |
1125 | page. Here you can also gather information on how specific tests | |
767094dd | 1126 | behave on different platforms and compare them with your results. A |
f42974dc DW |
1127 | few failing testcases are possible even on released versions and you |
1128 | should look here first if you think your results are unreasonable. | |
1129 | ||
1130 | @end ifset | |
1131 | ||
1132 | @c ***Final install*********************************************************** | |
6cfb3f16 | 1133 | @ifnothtml |
f42974dc DW |
1134 | @comment node-name, next, previous, up |
1135 | @node Final install, , Testing, Installing GCC | |
6cfb3f16 | 1136 | @end ifnothtml |
f42974dc DW |
1137 | @ifset finalinstallhtml |
1138 | @html | |
1139 | <h1 align="center">Installing GCC: Final installation</h1> | |
1140 | @end html | |
1141 | @ifnothtml | |
1142 | @chapter Installing GCC: Final installation | |
1143 | @end ifnothtml | |
1144 | ||
eea81d3e RO |
1145 | Now that GCC has been built (and optionally tested), you can install it with |
1146 | @example | |
1147 | cd @var{objdir}; make install | |
1148 | @end example | |
f42974dc DW |
1149 | |
1150 | That step completes the installation of GCC; user level binaries can | |
38209993 LG |
1151 | be found in @file{@var{prefix}/bin} where @var{prefix} is the value you |
1152 | specified with the @option{--prefix} to configure (or @file{/usr/local} | |
ab130aa5 JM |
1153 | by default). (If you specified @option{--bindir}, that directory will |
1154 | be used instead; otherwise, if you specified @option{--exec-prefix}, | |
1155 | @file{@var{exec-prefix}/bin} will be used.) Headers for the C++ and | |
1156 | Java libraries are installed in @file{@var{prefix}/include}; libraries | |
1157 | in @file{@var{libdir}} (normally @file{@var{prefix}/lib}); internal | |
1158 | parts of the compiler in @file{@var{libdir}/gcc-lib}; documentation in | |
1159 | info format in @file{@var{infodir}} (normally @file{@var{prefix}/info}). | |
f42974dc | 1160 | |
c009f01f JJ |
1161 | If you built a released version of GCC then if you don't mind, please |
1162 | quickly review the build status page for | |
1163 | @uref{http://gcc.gnu.org/gcc-3.0/buildstat.html,,3.0} or | |
1164 | @uref{http://gcc.gnu.org/gcc-2.95/buildstat.html,,2.95}. | |
f42974dc | 1165 | If your system is not listed, send a note to |
eea81d3e RO |
1166 | @email{gcc@@gcc.gnu.org} indicating |
1167 | that you successfully built and installed GCC. | |
f42974dc | 1168 | |
c474f76b | 1169 | Include the output from running @file{@var{srcdir}/config.guess}. (Do |
eea81d3e | 1170 | not send us the @file{config.guess} file itself, just the one-line output from |
c009f01f | 1171 | running it!) Also specify which version you built. |
b9da07da JJ |
1172 | If the build was for GNU/Linux, also include the distribution name and version |
1173 | (e.g., Red Hat 7.1 or Debian 2.2.3, available from @file{/etc/issue}) | |
1174 | and the version of glibc you used; for RPM-based systems like Red Hat, | |
1175 | Mandrake, and SuSE type @samp{rpm -q glibc} to get the glibc version, | |
1176 | and on systems like Debian and Progeny use @samp{dpkg -l libc6}. | |
c009f01f JJ |
1177 | |
1178 | We'd also like to know if the | |
1179 | @ifnothtml | |
1180 | @ref{Specific, host/target specific installation notes} | |
1181 | @end ifnothtml | |
1182 | @ifhtml | |
1183 | @uref{specific.html,,host/target specific installation notes} | |
1184 | @end ifhtml | |
1185 | didn't include your host/target information or if that information is | |
1186 | incomplete or out of date. Send a note to | |
1187 | @email{gcc@@gcc.gnu.org} telling us how the information should be changed. | |
f42974dc DW |
1188 | |
1189 | If you find a bug, please report it following our | |
1190 | @uref{../bugs.html,,bug reporting guidelines}. | |
1191 | ||
ab130aa5 JM |
1192 | If you want to print the GCC manuals, do @samp{cd @var{objdir}; make |
1193 | dvi}. You will need to have @command{texi2dvi} (version at least 4.0) | |
1194 | and @TeX{} installed. This creates a number of @file{.dvi} files in | |
1195 | subdirectories of @file{@var{objdir}}; these may be converted for | |
1196 | printing with programs such as @command{dvips}. You can also | |
1197 | @uref{http://www.gnu.org/order/order.html,,buy printed manuals from the | |
1198 | Free Software Foundation}, though such manuals may not be for the most | |
161d7b59 | 1199 | recent version of GCC@. |
ab130aa5 | 1200 | |
f42974dc DW |
1201 | @html |
1202 | <hr> | |
1203 | <p> | |
1204 | @end html | |
1205 | @ifhtml | |
1206 | @uref{./index.html,,Return to the GCC Installation page} | |
1207 | @end ifhtml | |
1208 | @end ifset | |
1209 | ||
1210 | @c ***Binaries**************************************************************** | |
6cfb3f16 | 1211 | @ifnothtml |
f42974dc DW |
1212 | @comment node-name, next, previous, up |
1213 | @node Binaries, Specific, Installing GCC, Top | |
6cfb3f16 | 1214 | @end ifnothtml |
f42974dc DW |
1215 | @ifset binarieshtml |
1216 | @html | |
1217 | <h1 align="center">Installing GCC: Binaries</h1> | |
1218 | @end html | |
1219 | @ifnothtml | |
1220 | @chapter Installing GCC: Binaries | |
1221 | @end ifnothtml | |
1222 | @cindex Binaries | |
1223 | @cindex Installing GCC: Binaries | |
1224 | ||
161d7b59 | 1225 | We are often asked about pre-compiled versions of GCC@. While we cannot |
f42974dc DW |
1226 | provide these for all platforms, below you'll find links to binaries for |
1227 | various platforms where creating them by yourself is not easy due to various | |
1228 | reasons. | |
1229 | ||
1230 | Please note that we did not create these binaries, nor do we | |
1231 | support them. If you have any problems installing them, please | |
1232 | contact their makers. | |
1233 | ||
1234 | @itemize | |
1235 | @item | |
df002c7d DE |
1236 | AIX: |
1237 | @itemize | |
1238 | @item | |
4b5eb038 | 1239 | @uref{http://freeware.bull.net,,Bull's Freeware and Shareware Archive for AIX}; |
df002c7d DE |
1240 | |
1241 | @item | |
9da6e781 | 1242 | @uref{http://aixpdslib.seas.ucla.edu,,UCLA Software Library for AIX}; |
df002c7d | 1243 | @end itemize |
f42974dc DW |
1244 | |
1245 | @item | |
6cfb3f16 | 1246 | DOS---@uref{http://www.delorie.com/djgpp/,,DJGPP}; |
f42974dc | 1247 | |
f404402c MW |
1248 | @item |
1249 | HP-UX: | |
1250 | @itemize | |
f42974dc DW |
1251 | @item |
1252 | @uref{http://hpux.cae.wisc.edu/,,HP-UX Porting Center}; | |
1253 | ||
f404402c MW |
1254 | @item |
1255 | @uref{ftp://sunsite.informatik.rwth-aachen.de/pub/packages/gcc_hpux/,,Binaries for HP-UX 11.00 at Aachen University of Technology}. | |
1256 | @end itemize | |
1257 | ||
f42974dc | 1258 | @item |
38209993 LG |
1259 | @uref{http://www.sco.com/skunkware/devtools/index.html#gcc,,SCO |
1260 | OpenServer/Unixware}; | |
f42974dc DW |
1261 | |
1262 | @item | |
250d5688 | 1263 | Solaris 2 (SPARC, Intel)---@uref{http://www.sunfreeware.com/,,Sunfreeware}; |
f42974dc DW |
1264 | |
1265 | @item | |
6cfb3f16 | 1266 | SGI---@uref{http://freeware.sgi.com/,,SGI Freeware}; |
f42974dc DW |
1267 | |
1268 | @item | |
1269 | Windows 95, 98, and NT: | |
1270 | @itemize | |
1271 | @item | |
1272 | The @uref{http://sources.redhat.com/cygwin/,,Cygwin} project; | |
1273 | @item | |
1274 | @uref{http://www.xraylith.wisc.edu/~khan/software/gnu-win32/,,GNU Win32} | |
1275 | related projects by Mumit Khan. | |
1276 | @end itemize | |
1277 | ||
1278 | @item | |
1279 | @uref{ftp://ftp.thewrittenword.com/packages/free/by-name/gcc-2.95.2/,,The | |
1280 | Written Word} offers binaries for Solaris 2.5.1, 2.6, 2.7/SPARC, 2.7/Intel, | |
1281 | IRIX 6.2, 6.5, Digital UNIX 4.0D, HP-UX 10.20, and HP-UX 11.00. | |
1282 | ||
1283 | @item | |
6cfb3f16 JM |
1284 | Hitachi H8/300[HS]---@uref{http://h8300-hms.sourceforge.net/,,GNU |
1285 | Development Tools for the Hitachi H8/300[HS] Series} | |
f42974dc DW |
1286 | |
1287 | @end itemize | |
1288 | ||
1289 | In addition to those specific offerings, you can get a binary | |
1290 | distribution CD-ROM from the | |
f9047ed3 | 1291 | @uref{http://www.fsf.org/order/order.html,,Free Software Foundation}. |
f42974dc | 1292 | It contains binaries for a number of platforms, and |
767094dd | 1293 | includes not only GCC, but other stuff as well. The current CD does |
f42974dc | 1294 | not contain the latest version of GCC, but it should allow |
767094dd | 1295 | bootstrapping the compiler. An updated version of that disk is in the |
f42974dc DW |
1296 | works. |
1297 | ||
1298 | @html | |
1299 | <hr> | |
1300 | <p> | |
1301 | @end html | |
1302 | @ifhtml | |
1303 | @uref{./index.html,,Return to the GCC Installation page} | |
1304 | @end ifhtml | |
1305 | @end ifset | |
1306 | ||
1307 | @c ***Specific**************************************************************** | |
6cfb3f16 | 1308 | @ifnothtml |
f42974dc DW |
1309 | @comment node-name, next, previous, up |
1310 | @node Specific, Concept Index, Binaries, Top | |
6cfb3f16 | 1311 | @end ifnothtml |
f42974dc DW |
1312 | @ifset specifichtml |
1313 | @html | |
1314 | <h1 align="center">Host/target specific installation notes for GCC</h1> | |
1315 | @end html | |
1316 | @ifnothtml | |
1317 | @chapter Host/target specific installation notes for GCC | |
1318 | @end ifnothtml | |
1319 | @cindex Specific | |
1320 | @cindex Specific installation notes | |
1321 | @cindex Target specific installation | |
1322 | @cindex Host specific installation | |
1323 | @cindex Target specific installation notes | |
1324 | ||
1325 | Please read this document carefully @emph{before} installing the | |
1326 | GNU Compiler Collection on your machine. | |
1327 | ||
c009f01f JJ |
1328 | Lists of successful builds for released versions of GCC are |
1329 | available at our web pages for | |
1330 | @uref{http://gcc.gnu.org/gcc-3.0/buildstat.html,,3.0} | |
1331 | and | |
1332 | @uref{http://gcc.gnu.org/gcc-2.95/buildstat.html,,2.95}. | |
1333 | These lists are updated as new information becomes available. | |
1334 | ||
ef88b07d | 1335 | @ifhtml |
f42974dc DW |
1336 | @itemize |
1337 | @item | |
b8df899a JM |
1338 | @uref{#1750a-*-*,,1750a-*-*} |
1339 | @item | |
1340 | @uref{#a29k,,a29k} | |
1341 | @item | |
1342 | @uref{#a29k-*-bsd,,a29k-*-bsd} | |
1343 | @item | |
333e14b0 | 1344 | @uref{#alpha*-*-*,,alpha*-*-*} |
f42974dc DW |
1345 | @item |
1346 | @uref{#alpha*-dec-osf*,,alpha*-dec-osf*} | |
1347 | @item | |
71b96724 RL |
1348 | @uref{#alphaev5-cray-unicosmk*,,alphaev5-cray-unicosmk*} |
1349 | @item | |
b8df899a JM |
1350 | @uref{#arc-*-elf,,arc-*-elf} |
1351 | @item | |
1352 | @uref{#arm-*-aout,,arm-*-aout} | |
1353 | @item | |
1354 | @uref{#arm-*-elf,,arm-*-elf} | |
1355 | @item | |
476c334e PB |
1356 | @uref{#arm*-*-linux-gnu,,arm*-*-linux-gnu} |
1357 | @item | |
b8df899a JM |
1358 | @uref{#arm-*-riscix,,arm-*-riscix} |
1359 | @item | |
f42974dc DW |
1360 | @uref{#avr,,avr} |
1361 | @item | |
0132e321 MH |
1362 | @uref{#c4x,,c4x} |
1363 | @item | |
f42974dc DW |
1364 | @uref{#dos,,DOS} |
1365 | @item | |
b8df899a JM |
1366 | @uref{#dsp16xx,,dsp16xx} |
1367 | @item | |
1368 | @uref{#elxsi-elxsi-bsd,,elxsi-elxsi-bsd} | |
1369 | @item | |
021c4bfd RO |
1370 | @uref{#*-*-freebsd*,,*-*-freebsd*} |
1371 | @item | |
f42974dc DW |
1372 | @uref{#h8300-hms,,h8300-hms} |
1373 | @item | |
1374 | @uref{#hppa*-hp-hpux*,,hppa*-hp-hpux*} | |
1375 | @item | |
1376 | @uref{#hppa*-hp-hpux9,,hppa*-hp-hpux9} | |
1377 | @item | |
1378 | @uref{#hppa*-hp-hpux10,,hppa*-hp-hpux10} | |
1379 | @item | |
1380 | @uref{#hppa*-hp-hpux11,,hppa*-hp-hpux11} | |
1381 | @item | |
b8df899a JM |
1382 | @uref{#i370-*-*,,i370-*-*} |
1383 | @item | |
f42974dc DW |
1384 | @uref{#*-*-linux-gnu,,*-*-linux-gnu} |
1385 | @item | |
b8df899a JM |
1386 | @uref{#ix86-*-linux*oldld,,i?86-*-linux*oldld} |
1387 | @item | |
1388 | @uref{#ix86-*-linux*aout,,i?86-*-linux*aout} | |
1389 | @item | |
f42974dc DW |
1390 | @uref{#ix86-*-linux*,,i?86-*-linux*} |
1391 | @item | |
b8df899a JM |
1392 | @uref{#ix86-*-sco,,i?86-*-sco} |
1393 | @item | |
1394 | @uref{#ix86-*-sco3.2v4,,i?86-*-sco3.2v4} | |
1395 | @item | |
f42974dc DW |
1396 | @uref{#ix86-*-sco3.2v5*,,i?86-*-sco3.2v5*} |
1397 | @item | |
f42974dc DW |
1398 | @uref{#ix86-*-udk,,i?86-*-udk} |
1399 | @item | |
b8df899a JM |
1400 | @uref{#ix86-*-isc,,i?86-*-isc} |
1401 | @item | |
1402 | @uref{#ix86-*-esix,,i?86-*-esix} | |
1403 | @item | |
1404 | @uref{#ix86-ibm-aix,,i?86-ibm-aix} | |
1405 | @item | |
1406 | @uref{#ix86-sequent-bsd,,i?86-sequent-bsd} | |
1407 | @item | |
1408 | @uref{#ix86-sequent-ptx1*,,i?86-sequent-ptx1*, i?86-sequent-ptx2*} | |
1409 | @item | |
1410 | @uref{#ix86-*-sysv3*,,i?86-*-sysv3*} | |
1411 | @item | |
1412 | @uref{#i860-intel-osf*,,i860-intel-osf*} | |
1413 | @item | |
b499d9ab JJ |
1414 | @uref{#ia64-*-linux,,ia64-*-linux} |
1415 | @item | |
b8df899a JM |
1416 | @uref{#*-lynx-lynxos,,*-lynx-lynxos} |
1417 | @item | |
f42974dc DW |
1418 | @uref{#*-ibm-aix*,,*-ibm-aix*} |
1419 | @item | |
b8df899a JM |
1420 | @uref{#m32r-*-elf,,m32r-*-elf} |
1421 | @item | |
1422 | @uref{#m68000-hp-bsd,,m68000-hp-bsd} | |
1423 | @item | |
1424 | @uref{#m6811-elf,,m6811-elf} | |
1425 | @item | |
1426 | @uref{#m6812-elf,,m6812-elf} | |
1427 | @item | |
1428 | @uref{#m68k-altos,,m68k-altos} | |
1429 | @item | |
1430 | @uref{#m68k-apple-aux,,m68k-apple-aux} | |
1431 | @item | |
1432 | @uref{#m68k-att-sysv,,m68k-att-sysv} | |
1433 | @item | |
1434 | @uref{#m68k-bull-sysv,,m68k-bull-sysv} | |
1435 | @item | |
1436 | @uref{#m68k-crds-unox,,m68k-crds-unox} | |
1437 | @item | |
1438 | @uref{#m68k-hp-hpux,,m68k-hp-hpux} | |
1439 | @item | |
f42974dc DW |
1440 | @uref{#m68k-*-nextstep*,,m68k-*-nextstep*} |
1441 | @item | |
b8df899a JM |
1442 | @uref{#m68k-ncr-*,,m68k-ncr-*} |
1443 | @item | |
1444 | @uref{#m68k-sun,,m68k-sun} | |
1445 | @item | |
f42974dc DW |
1446 | @uref{#m68k-sun-sunos4.1.1,,m68k-sun-sunos4.1.1} |
1447 | @item | |
b8df899a JM |
1448 | @uref{#m88k-*-svr3,,m88k-*-svr3} |
1449 | @item | |
1450 | @uref{#m88k-*-dgux,,m88k-*-dgux} | |
1451 | @item | |
1452 | @uref{#m88k-tektronix-sysv3,,m88k-tektronix-sysv3} | |
1453 | @item | |
1454 | @uref{#mips-*-*,,mips-*-*} | |
1455 | @item | |
021c4bfd RO |
1456 | @uref{#mips-dec-*,,mips-dec-*} |
1457 | @item | |
b8df899a JM |
1458 | @uref{#mips-mips-bsd,,mips-mips-bsd} |
1459 | @item | |
1460 | @uref{#mips-mips-riscos*,,mips-mips-riscos*} | |
1461 | @item | |
b953cc4b | 1462 | @uref{#mips-sgi-irix4,,mips-sgi-irix4} |
213ba345 | 1463 | @item |
b953cc4b | 1464 | @uref{#mips-sgi-irix5,,mips-sgi-irix5} |
f42974dc | 1465 | @item |
b953cc4b | 1466 | @uref{#mips-sgi-irix6,,mips-sgi-irix6} |
f42974dc | 1467 | @item |
b8df899a JM |
1468 | @uref{#mips-sony-sysv,,mips-sony-sysv} |
1469 | @item | |
1470 | @uref{#ns32k-encore,,ns32k-encore} | |
1471 | @item | |
1472 | @uref{#ns32k-*-genix,,ns32k-*-genix} | |
1473 | @item | |
1474 | @uref{#ns32k-sequent,,ns32k-sequent} | |
1475 | @item | |
1476 | @uref{#ns32k-utek,,ns32k-utek} | |
1477 | @item | |
021c4bfd RO |
1478 | @uref{#powerpc*-*-*,,powerpc*-*-*, powerpc-*-sysv4} |
1479 | @item | |
4f2b1139 SS |
1480 | @uref{#powerpc-*-darwin*,,powerpc-*-darwin*} |
1481 | @item | |
b8df899a JM |
1482 | @uref{#powerpc-*-elf,,powerpc-*-elf, powerpc-*-sysv4} |
1483 | @item | |
f42974dc DW |
1484 | @uref{#powerpc-*-linux-gnu*,,powerpc-*-linux-gnu*} |
1485 | @item | |
edf1b3f3 AC |
1486 | @uref{#powerpc-*-netbsd*,,powerpc-*-netbsd*} |
1487 | @item | |
b8df899a JM |
1488 | @uref{#powerpc-*-eabiaix,,powerpc-*-eabiaix} |
1489 | @item | |
1490 | @uref{#powerpc-*-eabisim,,powerpc-*-eabisim} | |
1491 | @item | |
1492 | @uref{#powerpc-*-eabi,,powerpc-*-eabi} | |
1493 | @item | |
1494 | @uref{#powerpcle-*-elf,,powerpcle-*-elf, powerpcle-*-sysv4} | |
1495 | @item | |
1496 | @uref{#powerpcle-*-eabisim,,powerpcle-*-eabisim} | |
1497 | @item | |
1498 | @uref{#powerpcle-*-eabi,,powerpcle-*-eabi} | |
1499 | @item | |
1500 | @uref{#powerpcle-*-winnt,,powerpcle-*-winnt, powerpcle-*-pe} | |
1501 | @item | |
1502 | @uref{#romp-*-aos,,romp-*-aos, romp-*-mach} | |
1503 | @item | |
91abf72d HP |
1504 | @uref{#s390-*-linux*} |
1505 | @item | |
1506 | @uref{#s390x-*-linux*} | |
1507 | @item | |
250d5688 | 1508 | @uref{#*-*-solaris2*,,*-*-solaris2*} |
f42974dc | 1509 | @item |
250d5688 | 1510 | @uref{#sparc-sun-solaris2*,,sparc-sun-solaris2*} |
f42974dc DW |
1511 | @item |
1512 | @uref{#sparc-sun-solaris2.7,,sparc-sun-solaris2.7} | |
1513 | @item | |
250d5688 | 1514 | @uref{#*-*-solaris2.8,,*-*-solaris2.8} |
f42974dc | 1515 | @item |
250d5688 | 1516 | @uref{#sparc-sun-sunos4*,,sparc-sun-sunos4*} |
f42974dc DW |
1517 | @item |
1518 | @uref{#sparc-unknown-linux-gnulibc1,,sparc-unknown-linux-gnulibc1} | |
1519 | @item | |
1520 | @uref{#sparc64-*-*,,sparc64-*-*} | |
1521 | @item | |
b8df899a JM |
1522 | @uref{#*-*-sysv*,,*-*-sysv*} |
1523 | @item | |
1524 | @uref{#vax-dec-ultrix,,vax-dec-ultrix} | |
1525 | @item | |
1526 | @uref{#we32k-*-*,,we32k-*-*} | |
1527 | @item | |
f42974dc DW |
1528 | @uref{#windows,,Microsoft Windows} |
1529 | @item | |
1530 | @uref{#os2,,OS/2} | |
1531 | @item | |
1532 | @uref{#older,,Older systems} | |
1533 | @end itemize | |
1534 | ||
1535 | @itemize | |
1536 | @item | |
250d5688 | 1537 | @uref{#elf_targets,,all ELF targets} (SVR4, Solaris 2, etc.) |
f42974dc | 1538 | @end itemize |
ef88b07d | 1539 | @end ifhtml |
f42974dc DW |
1540 | |
1541 | ||
1542 | @html | |
1543 | <!-- -------- host/target specific issues start here ---------------- --> | |
1544 | <hr> | |
f42974dc | 1545 | @end html |
b8df899a JM |
1546 | @heading @anchor{1750a-*-*}1750a-*-* |
1547 | MIL-STD-1750A processors. | |
1548 | ||
1549 | The MIL-STD-1750A cross configuration produces output for | |
021c4bfd | 1550 | @code{as1750}, an assembler/linker available under the GNU General Public |
161d7b59 | 1551 | License for the 1750A@. @code{as1750} can be obtained at |
b8df899a JM |
1552 | @uref{ftp://ftp.fta-berlin.de/pub/crossgcc/1750gals/}. |
1553 | A similarly licensed simulator for | |
1554 | the 1750A is available from same address. | |
1555 | ||
021c4bfd RO |
1556 | You should ignore a fatal error during the building of @samp{libgcc} |
1557 | (@samp{libgcc} is not yet implemented for the 1750A@.) | |
b8df899a JM |
1558 | |
1559 | The @code{as1750} assembler requires the file @file{ms1750.inc}, which is | |
021c4bfd | 1560 | found in the directory @file{gcc/config/1750a}. |
b8df899a | 1561 | |
f0523f02 | 1562 | GCC produced the same sections as the Fairchild F9450 C Compiler, |
b8df899a JM |
1563 | namely: |
1564 | ||
1565 | @table @code | |
1566 | @item Normal | |
1567 | The program code section. | |
1568 | ||
1569 | @item Static | |
1570 | The read/write (RAM) data section. | |
1571 | ||
1572 | @item Konst | |
1573 | The read-only (ROM) constants section. | |
1574 | ||
1575 | @item Init | |
161d7b59 | 1576 | Initialization section (code to copy KREL to SREL)@. |
b8df899a JM |
1577 | @end table |
1578 | ||
021c4bfd | 1579 | The smallest addressable unit is 16 bits (@code{BITS_PER_UNIT} is 16). This |
6cfb3f16 JM |
1580 | means that type @code{char} is represented with a 16-bit word per character. |
1581 | The 1750A's ``Load/Store Upper/Lower Byte'' instructions are not used by | |
161d7b59 | 1582 | GCC@. |
b8df899a JM |
1583 | |
1584 | @html | |
1585 | </p> | |
1586 | <hr> | |
1587 | @end html | |
1588 | @heading @anchor{a29k}a29k | |
1589 | AMD Am29k-family processors. These are normally used in embedded | |
1590 | applications. There are no standard Unix configurations. | |
1591 | This configuration | |
1592 | corresponds to AMD's standard calling sequence and binary interface | |
1593 | and is compatible with other 29k tools. | |
1594 | ||
1595 | You may need to make a variant of the file @file{a29k.h} for your | |
1596 | particular configuration. | |
1597 | ||
1598 | @html | |
1599 | </p> | |
1600 | <hr> | |
1601 | @end html | |
1602 | @heading @anchor{a29k-*-bsd}a29k-*-bsd | |
1603 | AMD Am29050 used in a system running a variant of BSD Unix. | |
1604 | ||
1605 | @html | |
1606 | </p> | |
1607 | <hr> | |
1608 | @end html | |
333e14b0 LR |
1609 | @heading @anchor{alpha*-*-*}alpha*-*-* |
1610 | ||
1611 | This section contains general configuration information for all | |
1612 | alpha-based platforms using ELF (in particular, ignore this section for | |
161d7b59 | 1613 | DEC OSF/1, Digital UNIX and Tru64 UNIX)@. In addition to reading this |
f2541106 | 1614 | section, please read all other sections that match your target. |
333e14b0 | 1615 | |
021c4bfd RO |
1616 | We require binutils 2.11.2 or newer. |
1617 | Previous binutils releases had a number of problems with DWARF 2 | |
333e14b0 LR |
1618 | debugging information, not the least of which is incorrect linking of |
1619 | shared libraries. | |
1620 | ||
b8df899a JM |
1621 | @html |
1622 | </p> | |
1623 | <hr> | |
1624 | @end html | |
f2541106 | 1625 | @heading @anchor{alpha*-dec-osf*}alpha*-dec-osf* |
b8df899a | 1626 | Systems using processors that implement the DEC Alpha architecture and |
f2541106 RO |
1627 | are running the DEC/Compaq Unix (DEC OSF/1, Digital UNIX, or Compaq |
1628 | Tru64 UNIX) operating system, for example the DEC Alpha AXP systems. | |
1629 | ||
1630 | In Tru64 UNIX V5.1, Compaq introduced a new assembler that does not | |
1631 | currently (2001-06-13) work with @command{mips-tfile}. As a workaround, | |
1632 | we need to use the old assembler, invoked via the barely documented | |
1633 | @option{-oldas} option. To bootstrap GCC, you either need to use the | |
1634 | Compaq C Compiler: | |
1635 | ||
1636 | @example | |
eea81d3e | 1637 | % CC=cc @var{srcdir}/configure [@var{options}] [@var{target}] |
f2541106 RO |
1638 | @end example |
1639 | ||
1640 | or you can use a copy of GCC 2.95.3 or higher built on Tru64 UNIX V4.0: | |
1641 | ||
1642 | @example | |
eea81d3e | 1643 | % CC=gcc -Wa,-oldas @var{srcdir}/configure [@var{options}] [@var{target}] |
f2541106 | 1644 | @end example |
b8df899a | 1645 | |
b953cc4b RO |
1646 | As of GNU binutils 2.11.2, neither GNU @command{as} nor GNU @command{ld} |
1647 | are supported on Tru64 UNIX, so you must not configure GCC with | |
1648 | @option{--with-gnu-as} or @option{--with-gnu-ld}. | |
1649 | ||
1650 | The @option{--enable-threads} options isn't supported yet. A patch is | |
1651 | in preparation for a future release. The Java runtime library has been | |
1652 | reported to work on Tru64 UNIX V4.0F, V5.0, and V5.1, so you may try | |
1653 | @option{--enable-libgcj} and report your results. | |
1654 | ||
f0523f02 | 1655 | GCC writes a @samp{.verstamp} directive to the assembler output file |
b8df899a JM |
1656 | unless it is built as a cross-compiler. It gets the version to use from |
1657 | the system header file @file{/usr/include/stamp.h}. If you install a | |
1658 | new version of DEC Unix, you should rebuild GCC to pick up the new version | |
1659 | stamp. | |
1660 | ||
1661 | Note that since the Alpha is a 64-bit architecture, cross-compilers from | |
1662 | 32-bit machines will not generate code as efficient as that generated | |
1663 | when the compiler is running on a 64-bit machine because many | |
1664 | optimizations that depend on being able to represent a word on the | |
1665 | target in an integral value on the host cannot be performed. Building | |
1666 | cross-compilers on the Alpha for 32-bit machines has only been tested in | |
1667 | a few cases and may not work properly. | |
1668 | ||
1669 | @code{make compare} may fail on old versions of DEC Unix unless you add | |
6cfb3f16 | 1670 | @option{-save-temps} to @code{CFLAGS}. On these systems, the name of the |
b8df899a JM |
1671 | assembler input file is stored in the object file, and that makes |
1672 | comparison fail if it differs between the @code{stage1} and | |
6cfb3f16 | 1673 | @code{stage2} compilations. The option @option{-save-temps} forces a |
b8df899a | 1674 | fixed name to be used for the assembler input file, instead of a |
6cfb3f16 | 1675 | randomly chosen name in @file{/tmp}. Do not add @option{-save-temps} |
b8df899a | 1676 | unless the comparisons fail without that option. If you add |
6cfb3f16 | 1677 | @option{-save-temps}, you will have to manually delete the @samp{.i} and |
b8df899a JM |
1678 | @samp{.s} files after each series of compilations. |
1679 | ||
f0523f02 | 1680 | GCC now supports both the native (ECOFF) debugging format used by DBX |
161d7b59 | 1681 | and GDB and an encapsulated STABS format for use only with GDB@. See the |
6cfb3f16 | 1682 | discussion of the @option{--with-stabs} option of @file{configure} above |
b8df899a JM |
1683 | for more information on these formats and how to select them. |
1684 | ||
1685 | There is a bug in DEC's assembler that produces incorrect line numbers | |
1686 | for ECOFF format when the @samp{.align} directive is used. To work | |
f0523f02 | 1687 | around this problem, GCC will not emit such alignment directives |
b8df899a JM |
1688 | while writing ECOFF format debugging information even if optimization is |
1689 | being performed. Unfortunately, this has the very undesirable | |
6cfb3f16 JM |
1690 | side-effect that code addresses when @option{-O} is specified are |
1691 | different depending on whether or not @option{-g} is also specified. | |
b8df899a | 1692 | |
6cfb3f16 | 1693 | To avoid this behavior, specify @option{-gstabs+} and use GDB instead of |
161d7b59 | 1694 | DBX@. DEC is now aware of this problem with the assembler and hopes to |
b8df899a JM |
1695 | provide a fix shortly. |
1696 | ||
71b96724 RL |
1697 | @html |
1698 | </p> | |
1699 | <hr> | |
1700 | @end html | |
1701 | @heading @anchor{alphaev5-cray-unicosmk*}alphaev5-cray-unicosmk* | |
1702 | Cray T3E systems running Unicos/Mk. | |
1703 | ||
1704 | This port is incomplete and has many known bugs. We hope to improve the | |
1705 | support for this target soon. Currently, only the C front end is supported, | |
1706 | and it is not possible to build parallel applications. Cray modules are not | |
1707 | supported; in particular, Craylibs are assumed to be in | |
1708 | @file{/opt/ctl/craylibs/craylibs}. | |
1709 | ||
1710 | You absolutely @strong{must} use GNU make on this platform. Also, you | |
1711 | need to tell GCC where to find the assembler and the linker. The | |
1712 | simplest way to do so is by providing @option{--with-as} and | |
1713 | @option{--with-ld} to @file{configure}, e.g.@: | |
1714 | ||
068e5714 | 1715 | @samp{configure --with-as=/opt/ctl/bin/cam --with-ld=/opt/ctl/bin/cld |
71b96724 RL |
1716 | --enable-languages=c} |
1717 | ||
1718 | The comparison test during @samp{make bootstrap} fails on Unicos/Mk | |
1719 | because the assembler inserts timestamps into object files. You should | |
1720 | be able to work around this by doing @samp{make all} after getting this | |
1721 | failure. | |
1722 | ||
b8df899a JM |
1723 | @html |
1724 | </p> | |
1725 | <hr> | |
1726 | @end html | |
1727 | @heading @anchor{arc-*-elf}arc-*-elf | |
1728 | Argonaut ARC processor. | |
1729 | This configuration is intended for embedded systems. | |
1730 | ||
1731 | @html | |
1732 | </p> | |
1733 | <hr> | |
1734 | @end html | |
1735 | @heading @anchor{arm-*-aout}arm-*-aout | |
1736 | Advanced RISC Machines ARM-family processors. These are often used in | |
1737 | embedded applications. There are no standard Unix configurations. | |
1738 | This configuration corresponds to the basic instruction sequences and will | |
1739 | produce @file{a.out} format object modules. | |
1740 | ||
1741 | You may need to make a variant of the file @file{arm.h} for your particular | |
1742 | configuration. | |
1743 | ||
1744 | @html | |
1745 | </p> | |
1746 | <hr> | |
1747 | @end html | |
1748 | @heading @anchor{arm-*-elf}arm-*-elf | |
1749 | This configuration is intended for embedded systems. | |
1750 | ||
476c334e PB |
1751 | @html |
1752 | </p> | |
1753 | <hr> | |
476c334e | 1754 | @end html |
ef88b07d | 1755 | @heading @anchor{arm*-*-linux-gnu}arm*-*-linux-gnu |
476c334e PB |
1756 | |
1757 | We require GNU binutils 2.10 or newer. | |
1758 | ||
b8df899a JM |
1759 | @html |
1760 | </p> | |
1761 | <hr> | |
1762 | @end html | |
1763 | @heading @anchor{arm-*-riscix}arm-*-riscix | |
1764 | The ARM2 or ARM3 processor running RISC iX, Acorn's port of BSD Unix. | |
1765 | If you are running a version of RISC iX prior to 1.2 then you must | |
1766 | specify the version number during configuration. Note that the | |
1767 | assembler shipped with RISC iX does not support stabs debugging | |
1768 | information; a new version of the assembler, with stabs support | |
1769 | included, is now available from Acorn and via ftp | |
1770 | @uref{ftp://ftp.acorn.com/pub/riscix/as+xterm.tar.Z}. To enable stabs | |
6cfb3f16 | 1771 | debugging, pass @option{--with-gnu-as} to configure. |
b8df899a | 1772 | |
6cfb3f16 | 1773 | You will need to install GNU @command{sed} before you can run configure. |
b8df899a | 1774 | |
f42974dc DW |
1775 | @html |
1776 | </p> | |
1777 | <hr> | |
f42974dc | 1778 | @end html |
ef88b07d | 1779 | @heading @anchor{avr}avr |
f42974dc | 1780 | |
b8df899a | 1781 | ATMEL AVR-family micro controllers. These are used in embedded |
ca52d046 GP |
1782 | applications. There are no standard Unix configurations. |
1783 | @ifnothtml | |
1784 | @xref{AVR Options,, AVR Options, gcc, Using and Porting the GNU Compiler | |
1785 | Collection (GCC)}, | |
1786 | @end ifnothtml | |
98999d8b | 1787 | @ifhtml |
ca52d046 | 1788 | See ``AVR Options'' in the main manual |
98999d8b | 1789 | @end ifhtml |
ca52d046 | 1790 | for the list of supported MCU types. |
b8df899a | 1791 | |
161d7b59 | 1792 | Use @samp{configure --target=avr --enable-languages="c"} to configure GCC@. |
f42974dc DW |
1793 | |
1794 | Further installation notes and other useful information about AVR tools | |
1795 | can also be obtained from: | |
1796 | ||
1797 | @itemize @bullet | |
1798 | @item | |
1799 | @uref{http://home.overta.ru/users/denisc,,http://home.overta.ru/users/denisc} | |
1800 | @item | |
1801 | @uref{http://www.itnet.pl/amelektr/avr,,http://www.itnet.pl/amelektr/avr} | |
1802 | @end itemize | |
1803 | ||
20293b4c | 1804 | We @emph{strongly} recommend using binutils 2.11 or newer. |
f42974dc DW |
1805 | |
1806 | The following error: | |
1807 | @example | |
1808 | Error: register required | |
1809 | @end example | |
1810 | ||
1811 | indicates that you should upgrade to a newer version of the binutils. | |
1812 | ||
0132e321 MH |
1813 | @html |
1814 | </p> | |
1815 | <hr> | |
1816 | @end html | |
1817 | @heading @anchor{c4x}c4x | |
1818 | ||
1819 | Texas Instruments TMS320C3x and TMS320C4x Floating Point Digital Signal | |
1820 | Processors. These are used in embedded applications. There are no | |
d8393f64 GP |
1821 | standard Unix configurations. |
1822 | @ifnothtml | |
1823 | @xref{TMS320C3x/C4x Options,, TMS320C3x/C4x Options, gcc, Using and | |
1824 | Porting the GNU Compiler Collection (GCC)}, | |
1825 | @end ifnothtml | |
98999d8b | 1826 | @ifhtml |
d8393f64 | 1827 | See ``TMS320C3x/C4x Options'' in the main manual |
98999d8b | 1828 | @end ifhtml |
d8393f64 | 1829 | for the list of supported MCU types. |
0132e321 MH |
1830 | |
1831 | GCC can be configured as a cross compiler for both the C3x and C4x | |
1832 | architectures on the same system. Use @samp{configure --target=c4x | |
1833 | --enable-languages="c,c++"} to configure. | |
1834 | ||
1835 | ||
1836 | Further installation notes and other useful information about C4x tools | |
1837 | can also be obtained from: | |
1838 | ||
1839 | @itemize @bullet | |
1840 | @item | |
d8393f64 | 1841 | @uref{http://www.elec.canterbury.ac.nz/c4x/,,http://www.elec.canterbury.ac.nz/c4x/} |
0132e321 MH |
1842 | @end itemize |
1843 | ||
0b85d816 HPN |
1844 | @html |
1845 | </p> | |
1846 | <hr> | |
1847 | @end html | |
1848 | @heading @anchor{cris}CRIS | |
1849 | ||
1850 | CRIS is the CPU architecture in Axis Communications ETRAX system-on-a-chip | |
1851 | series. These are used in embedded applications. | |
1852 | ||
1853 | @ifnothtml | |
1854 | @xref{CRIS Options,, CRIS Options, gcc, Using and Porting the GNU Compiler | |
1855 | Collection (GCC)}, | |
1856 | @end ifnothtml | |
1857 | @ifhtml | |
1858 | See ``CRIS Options'' in the main manual | |
1859 | @end ifhtml | |
1860 | for a list of CRIS-specific options. | |
1861 | ||
1862 | There are a few different CRIS targets: | |
1863 | @table @code | |
1864 | @item cris-axis-aout | |
1865 | Old target. Includes a multilib for the @samp{elinux} a.out-based | |
1866 | target. No multilibs for newer architecture variants. | |
1867 | @item cris-axis-elf | |
1868 | Mainly for monolithic embedded systems. Includes a multilib for the | |
1869 | @samp{v10} core used in @samp{ETRAX 100 LX}. | |
1870 | @item cris-axis-linux-gnu | |
1871 | A GNU/Linux port for the CRIS architecture, currently targeting | |
1872 | @samp{ETRAX 100 LX} by default. | |
1873 | @end table | |
1874 | ||
1875 | For @code{cris-axis-aout} and @code{cris-axis-elf} you need binutils 2.11 | |
1876 | or newer. For @code{cris-axis-linux-gnu} you need binutils 2.12 or newer. | |
1877 | ||
1878 | Pre-packaged tools can be obtained from | |
1879 | @uref{ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/}. More | |
1880 | information about this platform is available at | |
1881 | @uref{http://developer.axis.com/}. | |
1882 | ||
f42974dc DW |
1883 | @html |
1884 | </p> | |
1885 | <hr> | |
f42974dc | 1886 | @end html |
ef88b07d | 1887 | @heading @anchor{dos}DOS |
f42974dc DW |
1888 | |
1889 | Please have a look at our @uref{binaries.html,,binaries page}. | |
1890 | ||
f0523f02 | 1891 | You cannot install GCC by itself on MSDOS; it will not compile under |
f85b8d1a JM |
1892 | any MSDOS compiler except itself. You need to get the complete |
1893 | compilation package DJGPP, which includes binaries as well as sources, | |
1894 | and includes all the necessary compilation tools and libraries. | |
1895 | ||
b8df899a JM |
1896 | @html |
1897 | </p> | |
1898 | <hr> | |
1899 | @end html | |
1900 | @heading @anchor{dsp16xx}dsp16xx | |
1901 | A port to the AT&T DSP1610 family of processors. | |
1902 | ||
021c4bfd RO |
1903 | @html |
1904 | </p> | |
1905 | <hr> | |
1906 | @end html | |
1907 | @heading @anchor{*-*-freebsd*}*-*-freebsd* | |
1908 | ||
1909 | The version of binutils installed in @file{/usr/bin} is known to work unless | |
1910 | otherwise specified in any per-architecture notes. However, binutils | |
1911 | 2.11 is known to improve overall testsuite results. | |
1912 | ||
1913 | For FreeBSD 1, FreeBSD 2 or any mutant a.out versions of FreeBSD 3: All | |
1914 | configuration support and files as shipped with GCC 2.95 are still in | |
1915 | place. FreeBSD 2.2.7 has been known to bootstrap completely; however, | |
1916 | it is unknown which version of binutils was used (it is assumed that it | |
1917 | was the system copy in @file{/usr/bin}) and C++ EH failures were noted. | |
1918 | ||
1919 | For FreeBSD using the ELF file format: DWARF 2 debugging is now the | |
1920 | default for all CPU architectures. It had been the default on | |
1921 | FreeBSD/alpha since its inception. You may use @option{-gstabs} instead | |
1922 | of @option{-g}, if you really want the old debugging format. There are | |
1923 | no known issues with mixing object files and libraries with different | |
1924 | debugging formats. Otherwise, this release of GCC should now match more | |
1925 | of the configuration used in the stock FreeBSD configuration of GCC. In | |
1926 | particular, @option{--enable-threads} is now configured by default. | |
1927 | However, as a general user, do not attempt to replace the system | |
1928 | compiler with this release. Known to bootstrap and check with good | |
1929 | results on FreeBSD 3.0, 3.4, 4.0, 4.2, 4.3 and 5-CURRENT@. | |
1930 | ||
1931 | At this time, @option{--enable-threads} is not compatible with | |
1932 | @option{--enable-libgcj} on FreeBSD@. | |
1933 | ||
b8df899a JM |
1934 | @html |
1935 | </p> | |
1936 | <hr> | |
1937 | @end html | |
1938 | @heading @anchor{elxsi-elxsi-bsd}elxsi-elxsi-bsd | |
1939 | The Elxsi's C compiler has known limitations that prevent it from | |
f6df5bd2 | 1940 | compiling GCC@. Please contact @email{mrs@@wrs.com} for more details. |
b8df899a | 1941 | |
f42974dc DW |
1942 | @html |
1943 | </p> | |
1944 | <hr> | |
f42974dc | 1945 | @end html |
ef88b07d | 1946 | @heading @anchor{h8300-hms}h8300-hms |
b8df899a | 1947 | Hitachi H8/300 series of processors. |
f42974dc DW |
1948 | |
1949 | Please have a look at our @uref{binaries.html,,binaries page}. | |
1950 | ||
b8df899a JM |
1951 | The calling convention and structure layout has changed in release 2.6. |
1952 | All code must be recompiled. The calling convention now passes the | |
1953 | first three arguments in function calls in registers. Structures are no | |
1954 | longer a multiple of 2 bytes. | |
1955 | ||
f42974dc DW |
1956 | @html |
1957 | </p> | |
1958 | <hr> | |
f42974dc | 1959 | @end html |
ef88b07d | 1960 | @heading @anchor{hppa*-hp-hpux*}hppa*-hp-hpux* |
f42974dc | 1961 | |
021c4bfd | 1962 | We @emph{highly} recommend using gas/binutils 2.8 or newer on all hppa |
f9047ed3 | 1963 | platforms; you may encounter a variety of problems when using the HP |
f42974dc DW |
1964 | assembler. |
1965 | ||
1966 | Specifically, @option{-g} does not work on HP-UX (since that system | |
1967 | uses a peculiar debugging format which GCC does not know about), unless you | |
38209993 LG |
1968 | use GAS and GDB and configure GCC with the |
1969 | @uref{./configure.html#with-gnu-as,,@option{--with-gnu-as}} and | |
6cfb3f16 | 1970 | @option{--with-as=@dots{}} options. |
f42974dc DW |
1971 | |
1972 | If you wish to use pa-risc 2.0 architecture support, you must use either | |
021c4bfd | 1973 | the HP assembler, gas/binutils 2.11 or a recent |
f42974dc DW |
1974 | @uref{ftp://sources.redhat.com/pub/binutils/snapshots,,snapshot of gas}. |
1975 | ||
021c4bfd | 1976 | More specific information to @samp{hppa*-hp-hpux*} targets follows. |
f42974dc DW |
1977 | |
1978 | @html | |
1979 | </p> | |
1980 | <hr> | |
f42974dc | 1981 | @end html |
ef88b07d | 1982 | @heading @anchor{hppa*-hp-hpux9}hppa*-hp-hpux9 |
f42974dc DW |
1983 | |
1984 | The HP assembler has major problems on this platform. We've tried to work | |
1985 | around the worst of the problems. However, those workarounds may be causing | |
1986 | linker crashes in some circumstances; the workarounds also probably prevent | |
1987 | shared libraries from working. Use the GNU assembler to avoid these problems. | |
1988 | ||
1989 | ||
1990 | The configuration scripts for GCC will also trigger a bug in the hpux9 | |
38209993 LG |
1991 | shell. To avoid this problem set @env{CONFIG_SHELL} to @file{/bin/ksh} |
1992 | and @env{SHELL} to @file{/bin/ksh} in your environment. | |
f42974dc DW |
1993 | |
1994 | ||
1995 | @html | |
1996 | </p> | |
1997 | <hr> | |
f42974dc | 1998 | @end html |
ef88b07d | 1999 | @heading @anchor{hppa*-hp-hpux10}hppa*-hp-hpux10 |
f42974dc | 2000 | |
f9047ed3 | 2001 | For hpux10.20, we @emph{highly} recommend you pick up the latest sed patch |
161d7b59 | 2002 | @code{PHCO_19798} from HP@. HP has two sites which provide patches free of |
f42974dc DW |
2003 | charge: |
2004 | ||
2005 | @itemize @bullet | |
2006 | @item | |
2007 | @html | |
2008 | <a href="http://us-support.external.hp.com">US, Canada, Asia-Pacific, and | |
2009 | Latin-America</a> | |
2010 | @end html | |
2011 | @ifnothtml | |
2012 | @uref{http://us-support.external.hp.com,,}US, Canada, Asia-Pacific, and | |
2013 | Latin-America | |
2014 | @end ifnothtml | |
2015 | @item | |
2016 | @uref{http://europe-support.external.hp.com,,Europe} | |
2017 | @end itemize | |
2018 | ||
2019 | The HP assembler on these systems is much better than the hpux9 assembler, | |
2020 | but still has some problems. Most notably the assembler inserts timestamps | |
2021 | into each object file it creates, causing the 3-stage comparison test to fail | |
f9047ed3 JM |
2022 | during a @samp{make bootstrap}. You should be able to continue by |
2023 | saying @samp{make all} after getting the failure from @samp{make | |
38209993 | 2024 | bootstrap}. |
f42974dc DW |
2025 | |
2026 | ||
2027 | @html | |
2028 | </p> | |
2029 | <hr> | |
f42974dc | 2030 | @end html |
ef88b07d | 2031 | @heading @anchor{hppa*-hp-hpux11}hppa*-hp-hpux11 |
f42974dc | 2032 | |
25b5b465 MM |
2033 | GCC 3.0 supports HP-UX 11. You must use GNU binutils 2.11 or above on |
2034 | this platform. | |
f42974dc | 2035 | |
b8df899a JM |
2036 | @html |
2037 | </p> | |
2038 | <hr> | |
2039 | @end html | |
2040 | @heading @anchor{i370-*-*}i370-*-* | |
2041 | This port is very preliminary and has many known bugs. We hope to | |
2042 | have a higher-quality port for this machine soon. | |
2043 | ||
f42974dc DW |
2044 | @html |
2045 | </p> | |
2046 | <hr> | |
f42974dc | 2047 | @end html |
ef88b07d | 2048 | @heading @anchor{*-*-linux-gnu}*-*-linux-gnu |
f42974dc DW |
2049 | |
2050 | If you use glibc 2.2 (or 2.1.9x), GCC 2.95.2 won't install | |
021c4bfd | 2051 | out-of-the-box. You'll get compile errors while building @samp{libstdc++}. |
f42974dc DW |
2052 | The patch @uref{glibc-2.2.patch,,glibc-2.2.patch}, that is to be |
2053 | applied in the GCC source tree, fixes the compatibility problems. | |
2054 | ||
e15ed790 AJ |
2055 | @html |
2056 | </p> | |
2057 | @end html | |
2058 | ||
2059 | @html | |
2060 | <p> | |
2061 | @end html | |
2062 | ||
2063 | Currently Glibc 2.2.3 (and older releases) and GCC 3.0 are out of sync | |
161d7b59 | 2064 | since the latest exception handling changes for GCC@. Compiling glibc |
e15ed790 AJ |
2065 | with GCC 3.0 will give a binary incompatible glibc and therefore cause |
2066 | lots of problems and might make your system completly unusable. This | |
161d7b59 | 2067 | will definitly need fixes in glibc but might also need fixes in GCC@. We |
e15ed790 AJ |
2068 | strongly advise to wait for glibc 2.2.4 and to read the release notes of |
2069 | glibc 2.2.4 whether patches for GCC 3.0 are needed. You can use glibc | |
2070 | 2.2.3 with GCC 3.0, just do not try to recompile it. | |
2071 | ||
b8df899a JM |
2072 | @html |
2073 | </p> | |
2074 | <hr> | |
2075 | @end html | |
2076 | @heading @anchor{ix86-*-linux*oldld}i?86-*-linux*oldld | |
2077 | Use this configuration to generate @file{a.out} binaries on Linux-based | |
2078 | GNU systems if you do not have gas/binutils version 2.5.2 or later | |
767094dd | 2079 | installed. This is an obsolete configuration. |
b8df899a JM |
2080 | |
2081 | @html | |
2082 | </p> | |
2083 | <hr> | |
2084 | @end html | |
2085 | @heading @anchor{ix86-*-linux*aout}i?86-*-linux*aout | |
2086 | Use this configuration to generate @file{a.out} binaries on Linux-based | |
767094dd | 2087 | GNU systems. This configuration is being superseded. You must use |
b8df899a JM |
2088 | gas/binutils version 2.5.2 or later. |
2089 | ||
f42974dc DW |
2090 | @html |
2091 | </p> | |
2092 | <hr> | |
f42974dc | 2093 | @end html |
ef88b07d | 2094 | @heading @anchor{ix86-*-linux*}i?86-*-linux* |
f42974dc | 2095 | |
021c4bfd | 2096 | You will need binutils 2.9.1.0.15 or newer for exception handling to work. |
f42974dc DW |
2097 | |
2098 | If you receive Signal 11 errors when building on GNU/Linux, then it is | |
2099 | possible you have a hardware problem. Further information on this can be | |
2100 | found on @uref{http://www.bitwizard.nl/sig11/,,www.bitwizard.nl}. | |
2101 | ||
b8df899a JM |
2102 | @html |
2103 | </p> | |
2104 | <hr> | |
2105 | @end html | |
2106 | @heading @anchor{ix86-*-sco}i?86-*-sco | |
2107 | Compilation with RCC is recommended. Also, it may be a good idea to | |
2108 | link with GNU malloc instead of the malloc that comes with the system. | |
2109 | ||
2110 | @html | |
2111 | </p> | |
2112 | <hr> | |
2113 | @end html | |
2114 | @heading @anchor{ix86-*-sco3.2v4}i?86-*-sco3.2v4 | |
2115 | Use this configuration for SCO release 3.2 version 4. | |
2116 | ||
f42974dc DW |
2117 | @html |
2118 | </p> | |
2119 | <hr> | |
f42974dc | 2120 | @end html |
ef88b07d | 2121 | @heading @anchor{ix86-*-sco3.2v5*}i?86-*-sco3.2v5* |
b8df899a | 2122 | Use this for the SCO OpenServer Release 5 family of operating systems. |
f42974dc DW |
2123 | |
2124 | Unlike earlier versions of GCC, the ability to generate COFF with this | |
2125 | target is no longer provided. | |
2126 | ||
021c4bfd | 2127 | Earlier versions of GCC emitted DWARF 1 when generating ELF to allow |
f42974dc | 2128 | the system debugger to be used. That support was too burdensome to |
021c4bfd | 2129 | maintain. GCC now emits only DWARF 2 for this target. This means you |
f42974dc | 2130 | may use either the UDK debugger or GDB to debug programs built by this |
161d7b59 | 2131 | version of GCC@. |
f42974dc | 2132 | |
021c4bfd | 2133 | Use of the @option{-march=pentiumpro} flag can result in |
f42974dc | 2134 | unrecognized opcodes when using the native assembler on OS versions before |
767094dd | 2135 | 5.0.6. (Support for P6 opcodes was added to the native ELF assembler in |
f9047ed3 | 2136 | that version.) While it's rather rare to see these emitted by GCC yet, |
f42974dc DW |
2137 | errors of the basic form: |
2138 | ||
2139 | @example | |
2140 | /usr/tmp/ccaNlqBc.s:22:unknown instruction: fcomip | |
2141 | /usr/tmp/ccaNlqBc.s:50:unknown instruction: fucomip | |
2142 | @end example | |
2143 | ||
2144 | are symptoms of this problem. You may work around this by not | |
2145 | building affected files with that flag, by using the GNU assembler, or | |
161d7b59 | 2146 | by using the assembler provided with the current version of the OS@. |
f42974dc DW |
2147 | Users of GNU assembler should see the note below for hazards on doing |
2148 | so. | |
2149 | ||
2150 | The native SCO assembler that is provided with the OS at no | |
2151 | charge is normally required. If, however, you must be able to use | |
2152 | the GNU assembler (perhaps you're compiling code with asms that | |
2153 | require GAS syntax) you may configure this package using the flags | |
38209993 LG |
2154 | @uref{./configure.html#with-gnu-as,,@option{--with-gnu-as}}. You must |
2155 | use a recent version of GNU binutils; versions past 2.9.1 seem to work | |
2156 | well. | |
f42974dc DW |
2157 | |
2158 | In general, the @option{--with-gnu-as} option isn't as well tested | |
2159 | as the native assembler. | |
2160 | ||
6cfb3f16 | 2161 | Look in @file{gcc/config/i386/sco5.h} (search for ``messy'') for |
f42974dc DW |
2162 | additional OpenServer-specific flags. |
2163 | ||
38209993 | 2164 | Systems based on OpenServer before 5.0.4 (@samp{uname -X} |
021c4bfd RO |
2165 | will tell you what you're running) require TLS597 from |
2166 | @uref{ftp://ftp.sco.com/TLS/,,ftp://ftp.sco.com/TLS/} | |
f42974dc DW |
2167 | for C++ constructors and destructors to work right. |
2168 | ||
2169 | The system linker in (at least) 5.0.4 and 5.0.5 will sometimes | |
2170 | do the wrong thing for a construct that GCC will emit for PIC | |
2171 | code. This can be seen as execution testsuite failures when using | |
6cfb3f16 | 2172 | @option{-fPIC} on @file{921215-1.c}, @file{931002-1.c}, @file{nestfunc-1.c}, and @file{gcov-1.c}. |
f42974dc | 2173 | For 5.0.5, an updated linker that will cure this problem is |
f9047ed3 | 2174 | available. You must install both |
38209993 | 2175 | @uref{ftp://ftp.sco.com/Supplements/rs505a/,,ftp://ftp.sco.com/Supplements/rs505a/} |
f42974dc DW |
2176 | and @uref{ftp://ftp.sco.com/SLS/,,OSS499A}. |
2177 | ||
2178 | The dynamic linker in OpenServer 5.0.5 (earlier versions may show | |
021c4bfd | 2179 | the same problem) aborts on certain G77-compiled programs. It's particularly |
f42974dc DW |
2180 | likely to be triggered by building Fortran code with the @option{-fPIC} flag. |
2181 | Although it's conceivable that the error could be triggered by other | |
2182 | code, only G77-compiled code has been observed to cause this abort. | |
2183 | If you are getting core dumps immediately upon execution of your | |
021c4bfd RO |
2184 | G77 program---and especially if it's compiled with @option{-fPIC}---try applying |
2185 | @uref{sco_osr5_g77.patch,,@file{sco_osr5_g77.patch}} to your @samp{libf2c} and | |
161d7b59 | 2186 | rebuilding GCC@. |
f42974dc DW |
2187 | Affected faults, when analyzed in a debugger, will show a stack |
2188 | backtrace with a fault occurring in @code{rtld()} and the program | |
f9047ed3 | 2189 | running as @file{/usr/lib/ld.so.1}. This problem has been reported to SCO |
f42974dc DW |
2190 | engineering and will hopefully be addressed in later releases. |
2191 | ||
2192 | ||
f42974dc DW |
2193 | @html |
2194 | </p> | |
2195 | <hr> | |
f42974dc | 2196 | @end html |
ef88b07d | 2197 | @heading @anchor{ix86-*-udk}i?86-*-udk |
f42974dc DW |
2198 | |
2199 | This target emulates the SCO Universal Development Kit and requires that | |
f9047ed3 JM |
2200 | package be installed. (If it is installed, you will have a |
2201 | @file{/udk/usr/ccs/bin/cc} file present.) It's very much like the | |
b953cc4b | 2202 | @samp{i?86-*-unixware7*} target |
f42974dc DW |
2203 | but is meant to be used when hosting on a system where UDK isn't the |
2204 | default compiler such as OpenServer 5 or Unixware 2. This target will | |
f9047ed3 | 2205 | generate binaries that will run on OpenServer, Unixware 2, or Unixware 7, |
161d7b59 | 2206 | with the same warnings and caveats as the SCO UDK@. |
f42974dc | 2207 | |
f42974dc DW |
2208 | This target is a little tricky to build because we have to distinguish |
2209 | it from the native tools (so it gets headers, startups, and libraries | |
f9047ed3 | 2210 | from the right place) while making the tools not think we're actually |
f42974dc DW |
2211 | building a cross compiler. The easiest way to do this is with a configure |
2212 | command like this: | |
2213 | ||
f9047ed3 | 2214 | @samp{CC=/udk/usr/ccs/bin/cc @var{/your/path/to}/gcc/configure |
f42974dc DW |
2215 | --host=i686-pc-udk --target=i686-pc-udk --program-prefix=udk-} |
2216 | ||
6cfb3f16 | 2217 | @emph{You should substitute @samp{i686} in the above command with the appropriate |
f42974dc DW |
2218 | processor for your host.} |
2219 | ||
021c4bfd RO |
2220 | After the usual @samp{make bootstrap} and |
2221 | @samp{make install}, you can then access the UDK-targeted GCC | |
38209993 LG |
2222 | tools by adding @command{udk-} before the commonly known name. For |
2223 | example, to invoke the C compiler, you would use @command{udk-gcc}. | |
2224 | They will coexist peacefully with any native-target GCC tools you may | |
2225 | have installed. | |
f42974dc DW |
2226 | |
2227 | ||
b8df899a JM |
2228 | @html |
2229 | </p> | |
2230 | <hr> | |
2231 | @end html | |
2232 | @heading @anchor{ix86-*-isc}i?86-*-isc | |
2233 | It may be a good idea to link with GNU malloc instead of the malloc that | |
2234 | comes with the system. | |
2235 | ||
6cfb3f16 JM |
2236 | In ISC version 4.1, @command{sed} core dumps when building |
2237 | @file{deduced.h}. Use the version of @command{sed} from version 4.0. | |
b8df899a JM |
2238 | |
2239 | @html | |
2240 | </p> | |
2241 | <hr> | |
2242 | @end html | |
2243 | @heading @anchor{ix86-*-esix}i?86-*-esix | |
2244 | It may be good idea to link with GNU malloc instead of the malloc that | |
2245 | comes with the system. | |
2246 | ||
2247 | @html | |
2248 | </p> | |
2249 | <hr> | |
2250 | @end html | |
2251 | @heading @anchor{ix86-ibm-aix}i?86-ibm-aix | |
2252 | You need to use GAS version 2.1 or later, and LD from | |
2253 | GNU binutils version 2.2 or later. | |
2254 | ||
2255 | @html | |
2256 | </p> | |
2257 | <hr> | |
2258 | @end html | |
2259 | @heading @anchor{ix86-sequent-bsd}i?86-sequent-bsd | |
2260 | Go to the Berkeley universe before compiling. | |
2261 | ||
2262 | @html | |
2263 | </p> | |
2264 | <hr> | |
2265 | @end html | |
2266 | @heading @anchor{ix86-sequent-ptx1*}i?86-sequent-ptx1*, i?86-sequent-ptx2* | |
021c4bfd | 2267 | You must install GNU @command{sed} before running @command{configure}. |
b8df899a JM |
2268 | |
2269 | @html | |
2270 | </p> | |
2271 | <hr> | |
2272 | @end html | |
2273 | @heading @anchor{#ix86-*-sysv3*}i?86-*-sysv3* | |
2274 | The @code{fixproto} shell script may trigger a bug in the system shell. | |
2275 | If you encounter this problem, upgrade your operating system or | |
021c4bfd | 2276 | use @command{bash} (the GNU shell) to run @code{fixproto}. |
b8df899a JM |
2277 | |
2278 | ||
2279 | @html | |
2280 | </p> | |
2281 | <hr> | |
2282 | @end html | |
2283 | @heading @anchor{i860-intel-osf*}i860-intel-osf* | |
2284 | On the Intel Paragon (an i860 machine), if you are using operating | |
2285 | system version 1.0, you will get warnings or errors about redefinition | |
161d7b59 | 2286 | of @code{va_arg} when you build GCC@. |
b8df899a JM |
2287 | |
2288 | If this happens, then you need to link most programs with the library | |
2289 | @file{iclib.a}. You must also modify @file{stdio.h} as follows: before | |
2290 | the lines | |
2291 | ||
2292 | @example | |
2293 | #if defined(__i860__) && !defined(_VA_LIST) | |
2294 | #include <va_list.h> | |
2295 | @end example | |
2296 | ||
2297 | @noindent | |
2298 | insert the line | |
2299 | ||
2300 | @example | |
2301 | #if __PGC__ | |
2302 | @end example | |
2303 | ||
2304 | @noindent | |
2305 | and after the lines | |
2306 | ||
2307 | @example | |
2308 | extern int vprintf(const char *, va_list ); | |
2309 | extern int vsprintf(char *, const char *, va_list ); | |
2310 | #endif | |
2311 | @end example | |
2312 | ||
2313 | @noindent | |
2314 | insert the line | |
2315 | ||
2316 | @example | |
2317 | #endif /* __PGC__ */ | |
2318 | @end example | |
2319 | ||
2320 | These problems don't exist in operating system version 1.1. | |
2321 | ||
b499d9ab JJ |
2322 | @html |
2323 | </p> | |
2324 | <hr> | |
2325 | @end html | |
2326 | @heading @anchor{ia64-*-linux}ia64-*-linux | |
2327 | IA-64 processor (also known as IPF, or Itanium Processor Family) | |
2328 | running GNU/Linux. | |
2329 | ||
2330 | The toolchain is not completely finished, so requirements will continue | |
2331 | to change. | |
2332 | GCC 3.0.1 and later require glibc 2.2.4. | |
2333 | GCC 3.0.2 requires binutils from 2001-09-05 or later. | |
2334 | GCC 3.0.1 requires binutils 2.11.1 or later. | |
2335 | ||
2336 | None of the following versions of GCC has an ABI that is compatible | |
2337 | with any of the other versions in this list, with the exception that | |
2338 | Red Hat 2.96 and Trillian 000171 are compatible with each other: | |
2339 | 3.0.2, 3.0.1, 3.0, Red Hat 2.96, and Trillian 000717. | |
2340 | This primarily affects C++ programs and programs that create shared libraries. | |
2341 | Because of these ABI incompatibilities, GCC 3.0.2 is not recommended for | |
2342 | user programs on GNU/Linux systems built using earlier compiler releases. | |
2343 | GCC 3.0.2 is recommended for compiling linux, the kernel. | |
2344 | GCC 3.0.2 is believed to be fully ABI compliant, and hence no more major | |
2345 | ABI changes are expected. | |
2346 | ||
b8df899a JM |
2347 | @html |
2348 | </p> | |
2349 | <hr> | |
2350 | @end html | |
2351 | @heading @anchor{*-lynx-lynxos}*-lynx-lynxos | |
f0523f02 | 2352 | LynxOS 2.2 and earlier comes with GCC 1.x already installed as |
b8df899a | 2353 | @file{/bin/gcc}. You should compile with this instead of @file{/bin/cc}. |
f0523f02 | 2354 | You can tell GCC to use the GNU assembler and linker, by specifying |
b8df899a | 2355 | @samp{--with-gnu-as --with-gnu-ld} when configuring. These will produce |
f0523f02 | 2356 | COFF format object files and executables; otherwise GCC will use the |
b8df899a JM |
2357 | installed tools, which produce @file{a.out} format executables. |
2358 | ||
f42974dc DW |
2359 | @html |
2360 | </p> | |
2361 | <hr> | |
f42974dc DW |
2362 | <!-- rs6000-ibm-aix*, powerpc-ibm-aix* --> |
2363 | @end html | |
ef88b07d | 2364 | @heading @anchor{*-ibm-aix*}*-ibm-aix* |
f42974dc DW |
2365 | |
2366 | AIX Make frequently has problems with GCC makefiles. GNU Make 3.76 or | |
2367 | newer is recommended to build on this platform. | |
2368 | ||
6cfb3f16 | 2369 | Errors involving @code{alloca} when building GCC generally are due |
021c4bfd | 2370 | to an incorrect definition of @code{CC} in the Makefile or mixing files |
161d7b59 | 2371 | compiled with the native C compiler and GCC@. During the stage1 phase of |
6cfb3f16 JM |
2372 | the build, the native AIX compiler @strong{must} be invoked as @command{cc} |
2373 | (not @command{xlc}). Once @command{configure} has been informed of | |
2374 | @command{xlc}, one needs to use @samp{make distclean} to remove the | |
38209993 | 2375 | configure cache files and ensure that @env{CC} environment variable |
f42974dc DW |
2376 | does not provide a definition that will confuse @command{configure}. |
2377 | If this error occurs during stage2 or later, then the problem most likely | |
2378 | is the version of Make (see above). | |
2379 | ||
df002c7d | 2380 | Binutils 2.10 does not support AIX 4.3. Binutils available from the |
38209993 LG |
2381 | @uref{http://www-1.ibm.com/servers/aix/products/aixos/linux/,,AIX |
2382 | Toolbox for Linux: GNU and Open Source tools for AIX}; | |
df002c7d | 2383 | website does work. Binutils 2.11 is expected to include AIX 4.3 |
021c4bfd RO |
2384 | support. The GNU Assembler is necessary for @samp{libstdc++} to build. The |
2385 | AIX native @command{ld} still is recommended. The native AIX tools do | |
161d7b59 | 2386 | interoperate with GCC@. |
df002c7d DE |
2387 | |
2388 | Linking executables and shared libraries may produce warnings of | |
2389 | duplicate symbols. The assembly files generated by GCC for AIX always | |
2390 | have included multiple symbol definitions for certain global variable | |
2391 | and function declarations in the original program. The warnings should | |
2392 | not prevent the linker from producing a correct library or runnable | |
2393 | executable. | |
2394 | ||
d5d8d540 DE |
2395 | GCC's exception handling implementation stores process-specific data in |
2396 | the shared library which prevents exception handling from working | |
2397 | correctly on AIX in a default installation. To work around this, the | |
2398 | shared objects need to be loaded in the process private segment to | |
2399 | prevent them from being shared and marked read-only. This is | |
2400 | accomplished on AIX by installing the shared libraries | |
2401 | (@file{libgcc_s.a} and @file{libstdc++.a}) with file permissions | |
2402 | disallowing read-other (@samp{chmod a+x,o-r}). If the shared libraries | |
2403 | have been used, the shared library segment can be cleaned using the | |
2404 | @samp{/usr/sbin/slibclean} command. | |
2405 | ||
6cfb3f16 | 2406 | AIX 4.3 utilizes a ``large format'' archive to support both 32-bit and |
df002c7d DE |
2407 | 64-bit object modules. The routines provided in AIX 4.3.0 and AIX 4.3.1 |
2408 | to parse archive libraries did not handle the new format correctly. | |
2409 | These routines are used by GCC and result in error messages during | |
6cfb3f16 | 2410 | linking such as ``not a COFF file''. The version of the routines shipped |
df002c7d DE |
2411 | with AIX 4.3.1 should work for a 32-bit environment. The @option{-g} |
2412 | option of the archive command may be used to create archives of 32-bit | |
6cfb3f16 | 2413 | objects using the original ``small format''. A correct version of the |
d5d8d540 | 2414 | routines is shipped with AIX 4.3.2 and above. |
df002c7d | 2415 | |
f42974dc DW |
2416 | Some versions of the AIX binder (linker) can fail with a relocation |
2417 | overflow severe error when the @option{-bbigtoc} option is used to link | |
161d7b59 | 2418 | GCC-produced object files into an executable that overflows the TOC@. A fix |
f42974dc DW |
2419 | for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC) is |
2420 | available from IBM Customer Support and from its | |
d5d8d540 | 2421 | @uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com} |
f42974dc DW |
2422 | website as PTF U455193. |
2423 | ||
df002c7d | 2424 | The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core |
161d7b59 | 2425 | with a segmentation fault when invoked by any version of GCC@. A fix for |
df002c7d | 2426 | APAR IX87327 is available from IBM Customer Support and from its |
d5d8d540 | 2427 | @uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com} |
df002c7d | 2428 | website as PTF U461879. This fix is incorporated in AIX 4.3.3 and above. |
f42974dc DW |
2429 | |
2430 | The initial assembler shipped with AIX 4.3.0 generates incorrect object | |
2431 | files. A fix for APAR IX74254 (64BIT DISASSEMBLED OUTPUT FROM COMPILER FAILS | |
2432 | TO ASSEMBLE/BIND) is available from IBM Customer Support and from its | |
d5d8d540 | 2433 | @uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com} |
f42974dc DW |
2434 | website as PTF U453956. This fix is incorporated in AIX 4.3.1 and above. |
2435 | ||
161d7b59 | 2436 | AIX provides National Language Support (NLS)@. Compilers and assemblers |
df002c7d | 2437 | use NLS to support locale-specific representations of various data |
6cfb3f16 | 2438 | formats including floating-point numbers (e.g., @samp{.} vs @samp{,} for |
df002c7d DE |
2439 | separating decimal fractions). There have been problems reported where |
2440 | GCC does not produce the same floating-point formats that the assembler | |
c771326b | 2441 | expects. If one encounters this problem, set the @env{LANG} |
6cfb3f16 | 2442 | environment variable to @samp{C} or @samp{En_US}. |
f42974dc | 2443 | |
5791e6da DE |
2444 | By default, GCC for AIX 4.1 and above produces code that can be used on |
2445 | both Power or PowerPC processors. | |
2446 | ||
d5d8d540 DE |
2447 | A default can be specified with the @option{-mcpu=@var{cpu_type}} |
2448 | switch and using the configure option @option{--with-cpu-@var{cpu_type}}. | |
f42974dc | 2449 | |
b8df899a JM |
2450 | @html |
2451 | </p> | |
2452 | <hr> | |
2453 | @end html | |
2454 | @heading @anchor{m32r-*-elf}m32r-*-elf | |
2455 | Mitsubishi M32R processor. | |
2456 | This configuration is intended for embedded systems. | |
2457 | ||
2458 | @html | |
2459 | </p> | |
2460 | <hr> | |
2461 | @end html | |
2462 | @heading @anchor{m68000-hp-bsd}m68000-hp-bsd | |
161d7b59 | 2463 | HP 9000 series 200 running BSD@. Note that the C compiler that comes |
f0523f02 JM |
2464 | with this system cannot compile GCC; contact @email{law@@cygnus.com} |
2465 | to get binaries of GCC for bootstrapping. | |
b8df899a JM |
2466 | |
2467 | @html | |
2468 | </p> | |
2469 | <hr> | |
2470 | @end html | |
2471 | @heading @anchor{m6811-elf}m6811-elf | |
2472 | Motorola 68HC11 family micro controllers. These are used in embedded | |
2473 | applications. There are no standard Unix configurations. | |
2474 | ||
2475 | @html | |
2476 | </p> | |
2477 | <hr> | |
2478 | @end html | |
2479 | @heading @anchor{m6812-elf}m6812-elf | |
2480 | Motorola 68HC12 family micro controllers. These are used in embedded | |
2481 | applications. There are no standard Unix configurations. | |
2482 | ||
2483 | @html | |
2484 | </p> | |
2485 | <hr> | |
2486 | @end html | |
2487 | @heading @anchor{m68k-altos}m68k-altos | |
2488 | Altos 3068. You must use the GNU assembler, linker and debugger. | |
021c4bfd | 2489 | Also, you must fix a kernel bug. |
b8df899a JM |
2490 | |
2491 | @html | |
2492 | </p> | |
2493 | <hr> | |
2494 | @end html | |
2495 | @heading @anchor{m68k-apple-aux}m68k-apple-aux | |
161d7b59 | 2496 | Apple Macintosh running A/UX@. |
b8df899a JM |
2497 | You may configure GCC to use either the system assembler and |
2498 | linker or the GNU assembler and linker. You should use the GNU configuration | |
021c4bfd RO |
2499 | if you can, especially if you also want to use G++. You enable |
2500 | that configuration with the @option{--with-gnu-as} and @option{--with-gnu-ld} | |
b8df899a JM |
2501 | options to @code{configure}. |
2502 | ||
2503 | Note the C compiler that comes | |
161d7b59 | 2504 | with this system cannot compile GCC@. You can find binaries of GCC |
b8df899a JM |
2505 | for bootstrapping on @code{jagubox.gsfc.nasa.gov}. |
2506 | You will also a patched version of @file{/bin/ld} there that | |
2507 | raises some of the arbitrary limits found in the original. | |
2508 | ||
2509 | @html | |
2510 | </p> | |
2511 | <hr> | |
2512 | @end html | |
2513 | @heading @anchor{m68k-att-sysv}m68k-att-sysv | |
161d7b59 | 2514 | AT&T 3b1, a.k.a.@: 7300 PC@. This version of GCC cannot |
b8df899a JM |
2515 | be compiled with the system C compiler, which is too buggy. |
2516 | You will need to get a previous version of GCC and use it to | |
2517 | bootstrap. Binaries are available from the OSU-CIS archive, at | |
2518 | @uref{ftp://archive.cis.ohio-state.edu/pub/att7300/}. | |
2519 | ||
2520 | @html | |
2521 | </p> | |
2522 | <hr> | |
2523 | @end html | |
2524 | @heading @anchor{m68k-bull-sysv}m68k-bull-sysv | |
767094dd JM |
2525 | Bull DPX/2 series 200 and 300 with BOS-2.00.45 up to BOS-2.01. GCC works |
2526 | either with native assembler or GNU assembler. You can use | |
021c4bfd RO |
2527 | GNU assembler with native COFF generation by providing @option{--with-gnu-as} to |
2528 | the configure script or use GNU assembler with stabs-in-COFF encapsulation | |
2529 | by providing @samp{--with-gnu-as --stabs}. For any problem with the native | |
b8df899a JM |
2530 | assembler or for availability of the DPX/2 port of GAS, contact |
2531 | @email{F.Pierresteguy@@frcl.bull.fr}. | |
2532 | ||
2533 | @html | |
2534 | </p> | |
2535 | <hr> | |
2536 | @end html | |
2537 | @heading @anchor{m68k-crds-unox}m68k-crds-unox | |
2538 | Use @samp{configure unos} for building on Unos. | |
2539 | ||
2540 | The Unos assembler is named @code{casm} instead of @code{as}. For some | |
2541 | strange reason linking @file{/bin/as} to @file{/bin/casm} changes the | |
f0523f02 | 2542 | behavior, and does not work. So, when installing GCC, you should |
b8df899a JM |
2543 | install the following script as @file{as} in the subdirectory where |
2544 | the passes of GCC are installed: | |
2545 | ||
2546 | @example | |
2547 | #!/bin/sh | |
2548 | casm $* | |
2549 | @end example | |
2550 | ||
2551 | The default Unos library is named @file{libunos.a} instead of | |
f0523f02 | 2552 | @file{libc.a}. To allow GCC to function, either change all |
6cfb3f16 | 2553 | references to @option{-lc} in @file{gcc.c} to @option{-lunos} or link |
b8df899a JM |
2554 | @file{/lib/libc.a} to @file{/lib/libunos.a}. |
2555 | ||
2556 | @cindex @code{alloca}, for Unos | |
f0523f02 | 2557 | When compiling GCC with the standard compiler, to overcome bugs in |
6cfb3f16 JM |
2558 | the support of @code{alloca}, do not use @option{-O} when making stage 2. |
2559 | Then use the stage 2 compiler with @option{-O} to make the stage 3 | |
b8df899a JM |
2560 | compiler. This compiler will have the same characteristics as the usual |
2561 | stage 2 compiler on other systems. Use it to make a stage 4 compiler | |
2562 | and compare that with stage 3 to verify proper compilation. | |
2563 | ||
2564 | (Perhaps simply defining @code{ALLOCA} in @file{x-crds} as described in | |
2565 | the comments there will make the above paragraph superfluous. Please | |
2566 | inform us of whether this works.) | |
2567 | ||
2568 | Unos uses memory segmentation instead of demand paging, so you will need | |
2569 | a lot of memory. 5 Mb is barely enough if no other tasks are running. | |
2570 | If linking @file{cc1} fails, try putting the object files into a library | |
2571 | and linking from that library. | |
2572 | ||
2573 | @html | |
2574 | </p> | |
2575 | <hr> | |
2576 | @end html | |
2577 | @heading @anchor{m68k-hp-hpux}m68k-hp-hpux | |
161d7b59 JM |
2578 | HP 9000 series 300 or 400 running HP-UX@. HP-UX version 8.0 has a bug in |
2579 | the assembler that prevents compilation of GCC@. This | |
b8df899a JM |
2580 | bug manifests itself during the first stage of compilation, while |
2581 | building @file{libgcc2.a}: | |
2582 | ||
2583 | @smallexample | |
2584 | _floatdisf | |
2585 | cc1: warning: `-g' option not supported on this version of GCC | |
2586 | cc1: warning: `-g1' option not supported on this version of GCC | |
2587 | ./xgcc: Internal compiler error: program as got fatal signal 11 | |
2588 | @end smallexample | |
2589 | ||
2590 | A patched version of the assembler is available as the file | |
2591 | @uref{ftp://altdorf.ai.mit.edu/archive/cph/hpux-8.0-assembler}. If you | |
2592 | have HP software support, the patch can also be obtained directly from | |
2593 | HP, as described in the following note: | |
2594 | ||
2595 | @quotation | |
2596 | This is the patched assembler, to patch SR#1653-010439, where the | |
2597 | assembler aborts on floating point constants. | |
2598 | ||
2599 | The bug is not really in the assembler, but in the shared library | |
2600 | version of the function ``cvtnum(3c)''. The bug on ``cvtnum(3c)'' is | |
2601 | SR#4701-078451. Anyway, the attached assembler uses the archive | |
2602 | library version of ``cvtnum(3c)'' and thus does not exhibit the bug. | |
2603 | @end quotation | |
2604 | ||
2605 | This patch is also known as PHCO_4484. | |
2606 | ||
021c4bfd | 2607 | In addition, if you wish to use gas, you must use |
b8df899a JM |
2608 | gas version 2.1 or later, and you must use the GNU linker version 2.1 or |
2609 | later. Earlier versions of gas relied upon a program which converted the | |
2610 | gas output into the native HP-UX format, but that program has not been | |
2611 | kept up to date. gdb does not understand that native HP-UX format, so | |
2612 | you must use gas if you wish to use gdb. | |
2613 | ||
2614 | On HP-UX version 8.05, but not on 8.07 or more recent versions, the | |
2615 | @code{fixproto} shell script triggers a bug in the system shell. If you | |
2616 | encounter this problem, upgrade your operating system or use BASH (the | |
2617 | GNU shell) to run @code{fixproto}. This bug will cause the fixproto | |
2618 | program to report an error of the form: | |
2619 | ||
2620 | @example | |
2621 | ./fixproto: sh internal 1K buffer overflow | |
2622 | @end example | |
2623 | ||
2624 | To fix this, you can also change the first line of the fixproto script | |
2625 | to look like: | |
2626 | ||
2627 | @example | |
2628 | #!/bin/ksh | |
2629 | @end example | |
2630 | ||
2631 | ||
f42974dc DW |
2632 | @html |
2633 | </p> | |
2634 | <hr> | |
f42974dc | 2635 | @end html |
ef88b07d | 2636 | @heading @anchor{m68k-*-nextstep*}m68k-*-nextstep* |
f42974dc | 2637 | |
b8df899a JM |
2638 | Current GCC versions probably do not work on version 2 of the NeXT |
2639 | operating system. | |
2640 | ||
2147b154 | 2641 | On NeXTStep 3.0, the Objective-C compiler does not work, due, |
b8df899a JM |
2642 | apparently, to a kernel bug that it happens to trigger. This problem |
2643 | does not happen on 3.1. | |
2644 | ||
f42974dc DW |
2645 | You absolutely @strong{must} use GNU sed and GNU make on this platform. |
2646 | ||
2647 | ||
eea81d3e | 2648 | On NeXTSTEP 3.x where x < 3 the build of GCC will abort during |
f42974dc DW |
2649 | stage1 with an error message like this: |
2650 | ||
2651 | @example | |
2652 | _eh | |
2653 | /usr/tmp/ccbbsZ0U.s:987:Unknown pseudo-op: .section | |
2654 | /usr/tmp/ccbbsZ0U.s:987:Rest of line ignored. 1st junk character | |
2655 | valued 95 (_). | |
2656 | @end example | |
2657 | ||
f9047ed3 | 2658 | The reason for this is the fact that NeXT's assembler for these |
6cfb3f16 | 2659 | versions of the operating system does not support the @samp{.section} |
f42974dc DW |
2660 | pseudo op that's needed for full C++ exception functionality. |
2661 | ||
f9047ed3 JM |
2662 | As NeXT's assembler is a derived work from GNU as, a free |
2663 | replacement that does can be obtained at | |
f42974dc DW |
2664 | @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}. |
2665 | ||
2666 | If you try to build the integrated C++ & C++ runtime libraries on this system | |
2667 | you will run into trouble with include files. The way to get around this is | |
2668 | to use the following sequence. Note you must have write permission to | |
38209993 | 2669 | the directory @var{prefix} you specified in the configuration process of GCC |
f42974dc DW |
2670 | for this sequence to work. |
2671 | ||
2672 | @example | |
2673 | cd bld-gcc | |
2674 | make all-texinfo all-bison all-byacc all-binutils all-gas all-ld | |
2675 | cd gcc | |
2676 | make bootstrap | |
2677 | make install-headers-tar | |
2678 | cd .. | |
2679 | make bootstrap3 | |
2680 | @end example | |
2681 | ||
b8df899a JM |
2682 | @html |
2683 | </p> | |
2684 | <hr> | |
2685 | @end html | |
2686 | @heading @anchor{m68k-ncr-*}m68k-ncr-* | |
2687 | On the Tower models 4@var{n}0 and 6@var{n}0, by default a process is not | |
2688 | allowed to have more than one megabyte of memory. GCC cannot compile | |
6cfb3f16 | 2689 | itself (or many other programs) with @option{-O} in that much memory. |
b8df899a JM |
2690 | |
2691 | To solve this problem, reconfigure the kernel adding the following line | |
2692 | to the configuration file: | |
2693 | ||
2694 | @smallexample | |
2695 | MAXUMEM = 4096 | |
2696 | @end smallexample | |
2697 | ||
2698 | ||
2699 | @html | |
2700 | </p> | |
2701 | <hr> | |
2702 | @end html | |
2703 | @heading @anchor{m68k-sun}m68k-sun | |
2704 | Sun 3. We do not provide a configuration file to use the Sun FPA by | |
2705 | default, because programs that establish signal handlers for floating | |
161d7b59 | 2706 | point traps inherently cannot work with the FPA@. |
f42974dc DW |
2707 | |
2708 | @html | |
2709 | </p> | |
2710 | <hr> | |
f42974dc | 2711 | @end html |
ef88b07d | 2712 | @heading @anchor{m68k-sun-sunos4.1.1}m68k-sun-sunos4.1.1 |
f42974dc DW |
2713 | |
2714 | It is reported that you may need the GNU assembler on this platform. | |
2715 | ||
2716 | ||
b8df899a JM |
2717 | @html |
2718 | </p> | |
2719 | <hr> | |
2720 | @end html | |
2721 | @heading @anchor{m88k-*-svr3}m88k-*-svr3 | |
2722 | Motorola m88k running the AT&T/Unisoft/Motorola V.3 reference port. | |
2723 | These systems tend to use the Green Hills C, revision 1.8.5, as the | |
2724 | standard C compiler. There are apparently bugs in this compiler that | |
2725 | result in object files differences between stage 2 and stage 3. If this | |
2726 | happens, make the stage 4 compiler and compare it to the stage 3 | |
2727 | compiler. If the stage 3 and stage 4 object files are identical, this | |
2728 | suggests you encountered a problem with the standard C compiler; the | |
2729 | stage 3 and 4 compilers may be usable. | |
2730 | ||
f0523f02 | 2731 | It is best, however, to use an older version of GCC for bootstrapping |
b8df899a JM |
2732 | if you have one. |
2733 | ||
2734 | @html | |
2735 | </p> | |
2736 | <hr> | |
2737 | @end html | |
2738 | @heading @anchor{m88k-*-dgux}m88k-*-dgux | |
161d7b59 | 2739 | Motorola m88k running DG/UX@. To build 88open BCS native or cross |
b8df899a JM |
2740 | compilers on DG/UX, specify the configuration name as |
2741 | @samp{m88k-*-dguxbcs} and build in the 88open BCS software development | |
2742 | environment. To build ELF native or cross compilers on DG/UX, specify | |
2743 | @samp{m88k-*-dgux} and build in the DG/UX ELF development environment. | |
2744 | You set the software development environment by issuing | |
2745 | @samp{sde-target} command and specifying either @samp{m88kbcs} or | |
2746 | @samp{m88kdguxelf} as the operand. | |
2747 | ||
2748 | If you do not specify a configuration name, @file{configure} guesses the | |
2749 | configuration based on the current software development environment. | |
2750 | ||
2751 | @html | |
2752 | </p> | |
2753 | <hr> | |
2754 | @end html | |
2755 | @heading @anchor{m88k-tektronix-sysv3}m88k-tektronix-sysv3 | |
2756 | Tektronix XD88 running UTekV 3.2e. Do not turn on | |
2757 | optimization while building stage1 if you bootstrap with | |
021c4bfd | 2758 | the buggy Green Hills compiler. Also, the bundled LAI |
b8df899a JM |
2759 | System V NFS is buggy so if you build in an NFS mounted |
2760 | directory, start from a fresh reboot, or avoid NFS all together. | |
2761 | Otherwise you may have trouble getting clean comparisons | |
2762 | between stages. | |
2763 | ||
2764 | @html | |
2765 | </p> | |
2766 | <hr> | |
2767 | @end html | |
2768 | @heading @anchor{mips-*-*}mips-*-* | |
2769 | If you use the 1.31 version of the MIPS assembler (such as was shipped | |
6cfb3f16 | 2770 | with Ultrix 3.1), you will need to use the @option{-fno-delayed-branch} switch |
b8df899a JM |
2771 | when optimizing floating point code. Otherwise, the assembler will |
2772 | complain when the GCC compiler fills a branch delay slot with a | |
2773 | floating point instruction, such as @code{add.d}. | |
2774 | ||
2775 | If on a MIPS system you get an error message saying ``does not have gp | |
2776 | sections for all it's [sic] sectons [sic]'', don't worry about it. This | |
2777 | happens whenever you use GAS with the MIPS linker, but there is not | |
2778 | really anything wrong, and it is okay to use the output file. You can | |
2779 | stop such warnings by installing the GNU linker. | |
2780 | ||
2781 | It would be nice to extend GAS to produce the gp tables, but they are | |
2782 | optional, and there should not be a warning about their absence. | |
2783 | ||
2784 | Users have reported some problems with version 2.0 of the MIPS | |
2785 | compiler tools that were shipped with Ultrix 4.1. Version 2.10 | |
2786 | which came with Ultrix 4.2 seems to work fine. | |
2787 | ||
2788 | Users have also reported some problems with version 2.20 of the | |
2789 | MIPS compiler tools that were shipped with RISC/os 4.x. The earlier | |
2790 | version 2.11 seems to work fine. | |
2791 | ||
2792 | Some versions of the MIPS linker will issue an assertion failure | |
2793 | when linking code that uses @code{alloca} against shared | |
2794 | libraries on RISC-OS 5.0, and DEC's OSF/1 systems. This is a bug | |
2795 | in the linker, that is supposed to be fixed in future revisions. | |
6cfb3f16 JM |
2796 | To protect against this, GCC passes @option{-non_shared} to the |
2797 | linker unless you pass an explicit @option{-shared} or | |
2798 | @option{-call_shared} switch. | |
b8df899a JM |
2799 | |
2800 | @heading @anchor{mips-mips-bsd}mips-mips-bsd | |
2801 | MIPS machines running the MIPS operating system in BSD mode. It's | |
2802 | possible that some old versions of the system lack the functions | |
2803 | @code{memcpy}, @code{memmove}, @code{memcmp}, and @code{memset}. If your | |
2804 | system lacks these, you must remove or undo the definition of | |
2805 | @code{TARGET_MEM_FUNCTIONS} in @file{mips-bsd.h}. | |
2806 | ||
021c4bfd RO |
2807 | If you use the MIPS C compiler to bootstrap, it may be necessary |
2808 | to increase its table size for switch statements with the | |
2809 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
2810 | optimization option, you also need to use @option{-Olimit 3000}. | |
2811 | Both of these options are automatically generated in the | |
2812 | @file{Makefile} that the shell script @file{configure} builds. | |
2813 | If you override the @code{CC} make variable and use the MIPS | |
2814 | compilers, you may need to add @option{-Wf,-XNg1500 -Olimit 3000}. | |
2815 | ||
2816 | @html | |
2817 | </p> | |
2818 | <hr> | |
2819 | @end html | |
2820 | @heading @anchor{mips-dec-*}mips-dec-* | |
2821 | MIPS-based DECstations can support three different personalities: | |
2822 | Ultrix, DEC OSF/1, and OSF/rose. (Alpha-based DECstation products have | |
2823 | a configuration name beginning with @samp{alpha*-dec}.) To configure GCC | |
2824 | for these platforms use the following configurations: | |
2825 | ||
2826 | @table @samp | |
2827 | @item mips-dec-ultrix | |
2828 | Ultrix configuration. | |
2829 | ||
2830 | @item mips-dec-osf1 | |
2831 | DEC's version of OSF/1. | |
2832 | ||
2833 | @item mips-dec-osfrose | |
2834 | Open Software Foundation reference port of OSF/1 which uses the | |
2835 | OSF/rose object file format instead of ECOFF@. Normally, you | |
2836 | would not select this configuration. | |
2837 | @end table | |
2838 | ||
2839 | If you use the MIPS C compiler to bootstrap, it may be necessary | |
2840 | to increase its table size for switch statements with the | |
2841 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
6cfb3f16 | 2842 | optimization option, you also need to use @option{-Olimit 3000}. |
b8df899a JM |
2843 | Both of these options are automatically generated in the |
2844 | @file{Makefile} that the shell script @file{configure} builds. | |
2845 | If you override the @code{CC} make variable and use the MIPS | |
6cfb3f16 | 2846 | compilers, you may need to add @option{-Wf,-XNg1500 -Olimit 3000}. |
b8df899a JM |
2847 | |
2848 | @html | |
2849 | </p> | |
2850 | <hr> | |
2851 | @end html | |
2852 | @heading @anchor{mips-mips-riscos*}mips-mips-riscos* | |
021c4bfd RO |
2853 | If you use the MIPS C compiler to bootstrap, it may be necessary |
2854 | to increase its table size for switch statements with the | |
2855 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
6cfb3f16 | 2856 | optimization option, you also need to use @option{-Olimit 3000}. |
b8df899a JM |
2857 | Both of these options are automatically generated in the |
2858 | @file{Makefile} that the shell script @file{configure} builds. | |
2859 | If you override the @code{CC} make variable and use the MIPS | |
2860 | compilers, you may need to add @samp{-Wf,-XNg1500 -Olimit 3000}. | |
2861 | ||
2862 | MIPS computers running RISC-OS can support four different | |
2863 | personalities: default, BSD 4.3, System V.3, and System V.4 | |
2864 | (older versions of RISC-OS don't support V.4). To configure GCC | |
2865 | for these platforms use the following configurations: | |
2866 | ||
2867 | @table @samp | |
021c4bfd RO |
2868 | @item mips-mips-riscos@var{rev} |
2869 | Default configuration for RISC-OS, revision @var{rev}. | |
b8df899a | 2870 | |
021c4bfd RO |
2871 | @item mips-mips-riscos@var{rev}bsd |
2872 | BSD 4.3 configuration for RISC-OS, revision @var{rev}. | |
b8df899a | 2873 | |
021c4bfd RO |
2874 | @item mips-mips-riscos@var{rev}sysv4 |
2875 | System V.4 configuration for RISC-OS, revision @var{rev}. | |
b8df899a JM |
2876 | |
2877 | @html | |
2878 | </p> | |
2879 | <hr> | |
2880 | @end html | |
021c4bfd RO |
2881 | @item mips-mips-riscos@var{rev}sysv |
2882 | System V.3 configuration for RISC-OS, revision @var{rev}. | |
b8df899a JM |
2883 | @end table |
2884 | ||
2885 | The revision @code{rev} mentioned above is the revision of | |
2886 | RISC-OS to use. You must reconfigure GCC when going from a | |
2887 | RISC-OS revision 4 to RISC-OS revision 5. This has the effect of | |
2888 | avoiding a linker bug. | |
2889 | ||
f42974dc DW |
2890 | @html |
2891 | </p> | |
2892 | <hr> | |
f42974dc | 2893 | @end html |
b953cc4b | 2894 | @heading @anchor{mips-sgi-irix4}mips-sgi-irix4 |
f42974dc | 2895 | |
6cfb3f16 | 2896 | In order to compile GCC on an SGI running IRIX 4, the ``c.hdr.lib'' |
b8df899a JM |
2897 | option must be installed from the CD-ROM supplied from Silicon Graphics. |
2898 | This is found on the 2nd CD in release 4.0.1. | |
2899 | ||
213ba345 | 2900 | On IRIX version 4.0.5F, and perhaps on some other versions as well, |
b8df899a JM |
2901 | there is an assembler bug that reorders instructions incorrectly. To |
2902 | work around it, specify the target configuration | |
2903 | @samp{mips-sgi-irix4loser}. This configuration inhibits assembler | |
2904 | optimization. | |
2905 | ||
2906 | In a compiler configured with target @samp{mips-sgi-irix4}, you can turn | |
6cfb3f16 JM |
2907 | off assembler optimization by using the @option{-noasmopt} option. This |
2908 | compiler option passes the option @option{-O0} to the assembler, to | |
b8df899a JM |
2909 | inhibit reordering. |
2910 | ||
6cfb3f16 | 2911 | The @option{-noasmopt} option can be useful for testing whether a problem |
b8df899a | 2912 | is due to erroneous assembler reordering. Even if a problem does not go |
6cfb3f16 | 2913 | away with @option{-noasmopt}, it may still be due to assembler |
f0523f02 | 2914 | reordering---perhaps GCC itself was miscompiled as a result. |
b8df899a | 2915 | |
213ba345 RO |
2916 | You may get the following warning on IRIX 4 platforms, it can be safely |
2917 | ignored. | |
2918 | @example | |
2919 | warning: foo.o does not have gp tables for all its sections. | |
2920 | @end example | |
b8df899a | 2921 | |
213ba345 RO |
2922 | @html |
2923 | </p> | |
2924 | <hr> | |
2925 | @end html | |
b953cc4b RO |
2926 | @heading @anchor{mips-sgi-irix5}mips-sgi-irix5 |
2927 | ||
2928 | This configuration has considerable problems, which will be fixed in a | |
2929 | future release. | |
f42974dc | 2930 | |
213ba345 RO |
2931 | In order to compile GCC on an SGI running IRIX 5, the ``compiler_dev.hdr'' |
2932 | subsystem must be installed from the IDO CD-ROM supplied by Silicon | |
2933 | Graphics. It is also available for download from | |
2934 | @uref{http://www.sgi.com/developers/devtools/apis/ido.html,,http://www.sgi.com/developers/devtools/apis/ido.html}. | |
f42974dc | 2935 | |
213ba345 RO |
2936 | @code{make compare} may fail on version 5 of IRIX unless you add |
2937 | @option{-save-temps} to @code{CFLAGS}. On these systems, the name of the | |
2938 | assembler input file is stored in the object file, and that makes | |
2939 | comparison fail if it differs between the @code{stage1} and | |
2940 | @code{stage2} compilations. The option @option{-save-temps} forces a | |
2941 | fixed name to be used for the assembler input file, instead of a | |
2942 | randomly chosen name in @file{/tmp}. Do not add @option{-save-temps} | |
2943 | unless the comparisons fail without that option. If you do you | |
2944 | @option{-save-temps}, you will have to manually delete the @samp{.i} and | |
2945 | @samp{.s} files after each series of compilations. | |
f42974dc | 2946 | |
213ba345 RO |
2947 | If you use the MIPS C compiler to bootstrap, it may be necessary |
2948 | to increase its table size for switch statements with the | |
2949 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
2950 | optimization option, you also need to use @option{-Olimit 3000}. | |
f42974dc | 2951 | |
b953cc4b RO |
2952 | To enable debugging under IRIX 5, you must use GNU @command{as} 2.11.2 |
2953 | or later, | |
213ba345 RO |
2954 | and use the @option{--with-gnu-as} configure option when configuring GCC. |
2955 | GNU @command{as} is distributed as part of the binutils package. | |
b953cc4b RO |
2956 | When using release 2.11.2, you need to apply a patch |
2957 | @uref{http://sources.redhat.com/ml/binutils/2001-07/msg00352.html,,http://sources.redhat.com/ml/binutils/2001-07/msg00352.html} | |
2958 | which will be included in the next release of binutils. | |
f42974dc | 2959 | |
213ba345 RO |
2960 | When building GCC, the build process loops rebuilding @command{cc1} over |
2961 | and over again. This happens on @samp{mips-sgi-irix5.2}, and possibly | |
2962 | other platforms. It has been reported that this is a known bug in the | |
2963 | @command{make} shipped with IRIX 5.2. We recommend you use GNU | |
2964 | @command{make} instead of the vendor supplied @command{make} program; | |
2965 | however, you may have success with @command{smake} on IRIX 5.2 if you do | |
2966 | not have GNU @command{make} available. | |
f42974dc DW |
2967 | |
2968 | @html | |
2969 | </p> | |
2970 | <hr> | |
f42974dc | 2971 | @end html |
b953cc4b | 2972 | @heading @anchor{mips-sgi-irix6}mips-sgi-irix6 |
f42974dc | 2973 | |
213ba345 | 2974 | If you are using IRIX @command{cc} as your bootstrap compiler, you must |
f42974dc DW |
2975 | ensure that the N32 ABI is in use. To test this, compile a simple C |
2976 | file with @command{cc} and then run @command{file} on the | |
2977 | resulting object file. The output should look like: | |
2978 | ||
2979 | @example | |
213ba345 | 2980 | test.o: ELF N32 MSB @dots{} |
f42974dc DW |
2981 | @end example |
2982 | ||
2983 | If you see: | |
213ba345 RO |
2984 | |
2985 | @example | |
2986 | test.o: ELF 32-bit MSB @dots{} | |
2987 | @end example | |
2988 | ||
2989 | or | |
2990 | ||
f42974dc | 2991 | @example |
213ba345 | 2992 | test.o: ELF 64-bit MSB @dots{} |
f42974dc DW |
2993 | @end example |
2994 | ||
213ba345 | 2995 | then your version of @command{cc} uses the O32 or N64 ABI by default. You |
38209993 | 2996 | should set the environment variable @env{CC} to @samp{cc -n32} |
161d7b59 | 2997 | before configuring GCC@. |
f42974dc | 2998 | |
213ba345 RO |
2999 | GCC on IRIX 6 is usually built to support both the N32 and N64 ABIs. If |
3000 | you build GCC on a system that doesn't have the N64 libraries installed, | |
3001 | you need to configure with @option{--disable-multilib} so GCC doesn't | |
3002 | try to use them. Look for @file{/usr/lib64/libc.so.1} to see if you | |
3003 | have the 64-bit libraries installed. | |
3004 | ||
3005 | You must @emph{not} use GNU @command{as} (which isn't built anyway as of | |
3006 | binutils 2.11.2) on IRIX 6 platforms; doing so will only cause problems. | |
3007 | ||
f42974dc | 3008 | GCC does not currently support generating O32 ABI binaries in the |
b953cc4b | 3009 | @samp{mips-sgi-irix6} configurations. It is possible to create a GCC |
213ba345 | 3010 | with O32 ABI only support by configuring it for the @samp{mips-sgi-irix5} |
b953cc4b RO |
3011 | target and using a patched GNU @command{as} 2.11.2 as documented in the |
3012 | @uref{#mips-sgi-irix5,,@samp{mips-sgi-irix5}} section above. Using the | |
3013 | native assembler requires patches to GCC which will be included in a | |
3014 | future release. It is | |
213ba345 | 3015 | expected that O32 ABI support will be available again in a future release. |
f42974dc | 3016 | |
b953cc4b RO |
3017 | The @option{--enable-threads} option doesn't currently work, a patch is |
3018 | in preparation for a future release. The @option{--enable-libgcj} | |
3019 | option is disabled by default: IRIX 6 uses a very low default limit | |
3020 | (20480) for the command line length. Although libtool contains a | |
3021 | workaround for this problem, at least the N64 @samp{libgcj} is known not | |
3022 | to build despite this, running into an internal error of the native | |
3023 | @command{ld}. A sure fix is to increase this limit (@samp{ncargs}) to | |
3024 | its maximum of 262144 bytes. If you have root access, you can use the | |
3025 | @command{systune} command to do this. | |
3026 | ||
f42974dc | 3027 | GCC does not correctly pass/return structures which are |
767094dd JM |
3028 | smaller than 16 bytes and which are not 8 bytes. The problem is very |
3029 | involved and difficult to fix. It affects a number of other targets also, | |
f42974dc | 3030 | but IRIX 6 is affected the most, because it is a 64 bit target, and 4 byte |
767094dd | 3031 | structures are common. The exact problem is that structures are being padded |
e979f9e8 | 3032 | at the wrong end, e.g.@: a 4 byte structure is loaded into the lower 4 bytes |
f42974dc DW |
3033 | of the register when it should be loaded into the upper 4 bytes of the |
3034 | register. | |
3035 | ||
3036 | GCC is consistent with itself, but not consistent with the SGI C compiler | |
3037 | (and the SGI supplied runtime libraries), so the only failures that can | |
3038 | happen are when there are library functions that take/return such | |
213ba345 RO |
3039 | structures. There are very few such library functions. Currently this |
3040 | is known to affect @code{inet_ntoa}, @code{inet_lnaof}, | |
46d2e8d7 RO |
3041 | @code{inet_netof}, @code{inet_makeaddr}, and @code{semctl}. Until the |
3042 | bug is fixed, GCC contains workarounds for the known affected functions. | |
f42974dc | 3043 | |
3aa8219e GP |
3044 | See @uref{http://freeware.sgi.com/,,http://freeware.sgi.com/} for more |
3045 | information about using GCC on IRIX platforms. | |
f42974dc | 3046 | |
b8df899a JM |
3047 | @html |
3048 | </p> | |
3049 | <hr> | |
3050 | @end html | |
3051 | @heading @anchor{mips-sony-sysv}mips-sony-sysv | |
161d7b59 JM |
3052 | Sony MIPS NEWS@. This works in NEWSOS 5.0.1, but not in 5.0.2 (which |
3053 | uses ELF instead of COFF)@. Support for 5.0.2 will probably be provided | |
b8df899a JM |
3054 | soon by volunteers. In particular, the linker does not like the |
3055 | code generated by GCC when shared libraries are linked in. | |
3056 | ||
3057 | ||
3058 | @html | |
3059 | </p> | |
3060 | <hr> | |
3061 | @end html | |
3062 | @heading @anchor{ns32k-encore}ns32k-encore | |
161d7b59 | 3063 | Encore ns32000 system. Encore systems are supported only under BSD@. |
b8df899a JM |
3064 | |
3065 | @html | |
3066 | </p> | |
3067 | <hr> | |
3068 | @end html | |
3069 | @heading @anchor{ns32k-*-genix}ns32k-*-genix | |
3070 | National Semiconductor ns32000 system. Genix has bugs in @code{alloca} | |
3071 | and @code{malloc}; you must get the compiled versions of these from GNU | |
3072 | Emacs. | |
3073 | ||
3074 | @html | |
3075 | </p> | |
3076 | <hr> | |
3077 | @end html | |
3078 | @heading @anchor{ns32k-sequent}ns32k-sequent | |
3079 | Go to the Berkeley universe before compiling. | |
3080 | ||
3081 | @html | |
3082 | </p> | |
3083 | <hr> | |
3084 | @end html | |
3085 | @heading @anchor{ns32k-utek}ns32k-utek | |
3086 | UTEK ns32000 system (``merlin''). The C compiler that comes with this | |
f0523f02 JM |
3087 | system cannot compile GCC; contact @samp{tektronix!reed!mason} to get |
3088 | binaries of GCC for bootstrapping. | |
b8df899a JM |
3089 | |
3090 | ||
b8df899a JM |
3091 | @html |
3092 | </p> | |
3093 | <hr> | |
3094 | @end html | |
021c4bfd | 3095 | @heading @anchor{powerpc*-*-*}powerpc-*-* |
b8df899a | 3096 | |
6cfb3f16 JM |
3097 | You can specify a default version for the @option{-mcpu=@var{cpu_type}} |
3098 | switch by using the configure option @option{--with-cpu-@var{cpu_type}}. | |
b8df899a | 3099 | |
4f2b1139 SS |
3100 | @html |
3101 | </p> | |
3102 | <hr> | |
3103 | @end html | |
3104 | @heading @anchor{powerpc-*-darwin*}powerpc-*-darwin* | |
3105 | PowerPC running Darwin (Mac OS X kernel). | |
3106 | ||
3107 | GCC 3.0 does not support Darwin, but 3.1 and later releases will work. | |
3108 | ||
3109 | Pre-installed versions of Mac OS X may not include any developer tools, | |
3110 | meaning that you will not be able to build GCC from source. Tool | |
3111 | binaries are available at | |
3112 | @uref{http://www.opensource.apple.com/projects/darwin} (free | |
3113 | registration required). | |
3114 | ||
3115 | Versions of the assembler prior to ``cctools-364'' cannot handle the | |
3116 | 4-argument form of rlwinm and related mask-using instructions. Darwin | |
3117 | 1.3 (Mac OS X 10.0) uses cctools-353 for instance. To get cctools-364, | |
3118 | check out @file{cctools} with tag @samp{Apple-364}, build it, and | |
3119 | install the assembler as @file{usr/bin/as}. See | |
3120 | @uref{http://www.opensource.apple.com/tools/cvs/docs.html} for details. | |
3121 | ||
3122 | Also, the default stack limit of 512K is too small, and a bootstrap will | |
3123 | typically fail when self-compiling @file{expr.c}. Set the stack to 800K | |
3124 | or more, for instance by doing @samp{limit stack 800}. It's also | |
3125 | convenient to use the GNU preprocessor instead of Apple's during the | |
3126 | first stage of bootstrapping; this is automatic when doing @samp{make | |
3127 | bootstrap}, but to do it from the toplevel objdir you will need to say | |
3128 | @samp{make CC='cc -no-cpp-precomp' bootstrap}. | |
3129 | ||
3130 | Note that the version of GCC shipped by Apple typically includes a | |
3131 | number of extensions not available in a standard GCC release. These | |
3132 | extensions are generally specific to Mac programming. | |
3133 | ||
021c4bfd RO |
3134 | @html |
3135 | </p> | |
3136 | <hr> | |
3137 | @end html | |
3138 | @heading @anchor{powerpc-*-elf}powerpc-*-elf, powerpc-*-sysv4 | |
3139 | PowerPC system in big endian mode, running System V.4. | |
3140 | ||
f42974dc DW |
3141 | @html |
3142 | </p> | |
3143 | <hr> | |
f42974dc | 3144 | @end html |
ef88b07d | 3145 | @heading @anchor{powerpc-*-linux-gnu*}powerpc-*-linux-gnu* |
f42974dc | 3146 | |
f9047ed3 | 3147 | You will need |
021c4bfd | 3148 | @uref{ftp://ftp.varesearch.com/pub/support/hjl/binutils,,binutils 2.9.4.0.8} |
161d7b59 | 3149 | or newer for a working GCC@. It is strongly recommended to recompile binutils |
f42974dc DW |
3150 | if you initially built it with gcc-2.7.2.x. |
3151 | ||
edf1b3f3 AC |
3152 | @html |
3153 | </p> | |
3154 | <hr> | |
3155 | @end html | |
3156 | @heading @anchor{powerpc-*-netbsd*}powerpc-*-netbsd* | |
3157 | PowerPC system in big endian mode running NetBSD@. To build the | |
3158 | documentation you will need Texinfo version 4.0 (NetBSD 1.5.1 included | |
3159 | Texinfo version 3.12). | |
3160 | ||
b8df899a JM |
3161 | @html |
3162 | </p> | |
3163 | <hr> | |
3164 | @end html | |
3165 | @heading @anchor{powerpc-*-eabiaix}powerpc-*-eabiaix | |
6cfb3f16 | 3166 | Embedded PowerPC system in big endian mode with @option{-mcall-aix} selected as |
b8df899a JM |
3167 | the default. |
3168 | ||
b8df899a JM |
3169 | @html |
3170 | </p> | |
3171 | <hr> | |
3172 | @end html | |
3173 | @heading @anchor{powerpc-*-eabisim}powerpc-*-eabisim | |
3174 | Embedded PowerPC system in big endian mode for use in running under the | |
3175 | PSIM simulator. | |
3176 | ||
b8df899a JM |
3177 | @html |
3178 | </p> | |
3179 | <hr> | |
3180 | @end html | |
3181 | @heading @anchor{powerpc-*-eabi}powerpc-*-eabi | |
3182 | Embedded PowerPC system in big endian mode. | |
3183 | ||
b8df899a JM |
3184 | @html |
3185 | </p> | |
3186 | <hr> | |
3187 | @end html | |
3188 | @heading @anchor{powerpcle-*-elf}powerpcle-*-elf, powerpcle-*-sysv4 | |
3189 | PowerPC system in little endian mode, running System V.4. | |
3190 | ||
b8df899a JM |
3191 | @html |
3192 | </p> | |
3193 | <hr> | |
3194 | @end html | |
3195 | @heading @anchor{powerpcle-*-eabisim}powerpcle-*-eabisim | |
3196 | Embedded PowerPC system in little endian mode for use in running under | |
3197 | the PSIM simulator. | |
3198 | ||
3199 | @html | |
3200 | </p> | |
3201 | <hr> | |
3202 | @end html | |
3203 | @heading @anchor{powerpcle-*-eabi}powerpcle-*-eabi | |
3204 | Embedded PowerPC system in little endian mode. | |
3205 | ||
b8df899a JM |
3206 | @html |
3207 | </p> | |
3208 | <hr> | |
3209 | @end html | |
3210 | @heading @anchor{powerpcle-*-winnt}powerpcle-*-winnt, powerpcle-*-pe | |
161d7b59 | 3211 | PowerPC system in little endian mode running Windows NT@. |
b8df899a | 3212 | |
b8df899a JM |
3213 | @html |
3214 | </p> | |
3215 | <hr> | |
3216 | @end html | |
3217 | @heading @anchor{romp-*-aos}romp-*-aos, romp-*-mach | |
3218 | The only operating systems supported for the IBM RT PC are AOS and | |
161d7b59 | 3219 | MACH@. GCC does not support AIX running on the RT@. We recommend you |
f0523f02 | 3220 | compile GCC with an earlier version of itself; if you compile GCC |
021c4bfd | 3221 | with @command{hc}, the Metaware compiler, it will work, but you will get |
b8df899a JM |
3222 | mismatches between the stage 2 and stage 3 compilers in various files. |
3223 | These errors are minor differences in some floating-point constants and | |
3224 | can be safely ignored; the stage 3 compiler is correct. | |
f42974dc | 3225 | |
91abf72d HP |
3226 | @html |
3227 | </p> | |
3228 | <hr> | |
3229 | @end html | |
3230 | @heading @anchor{s390-*-linux*}s390-*-linux* | |
3231 | S/390 system running Linux for S/390@. | |
3232 | ||
3233 | @html | |
3234 | </p> | |
3235 | <hr> | |
3236 | @end html | |
3237 | @heading @anchor{s390x-*-linux*}s390x-*-linux* | |
3238 | zSeries system (64 Bit) running Linux for zSeries@. | |
3239 | ||
f42974dc DW |
3240 | @html |
3241 | </p> | |
3242 | <hr> | |
f42974dc | 3243 | @end html |
250d5688 RO |
3244 | @c Please use Solaris 2 to refer to all release of Solaris, starting |
3245 | @c with 2.0 until 2.6, 7, and 8. Solaris 1 was a marketing name for | |
3246 | @c SunOS 4 releases which we don't use to avoid confusion. Solaris | |
3247 | @c alone is too unspecific and must be avoided. | |
3248 | @heading @anchor{*-*-solaris2*}*-*-solaris2* | |
f42974dc | 3249 | |
250d5688 | 3250 | Sun does not ship a C compiler with Solaris 2. To bootstrap and install |
dbd210ef KC |
3251 | GCC you first have to install a pre-built compiler, see our |
3252 | @uref{binaries.html,,binaries page} for details. | |
f42974dc | 3253 | |
250d5688 RO |
3254 | The Solaris 2 @command{/bin/sh} will often fail to configure |
3255 | @file{libstdc++-v3}, @file{boehm-gc} or | |
021c4bfd | 3256 | @file{libjava}. If you encounter this problem, set @env{CONFIG_SHELL} to |
250d5688 | 3257 | @command{/bin/ksh} in your environment and run @command{make bootstrap} again. |
37324a54 | 3258 | Another possibility that sometimes helps is to remove |
250d5688 | 3259 | @file{*-*-solaris2*/config.cache}. |
e6855a2d | 3260 | |
b8df899a | 3261 | Solaris 2 comes with a number of optional OS packages. Some of these |
dbd210ef KC |
3262 | packages are needed to use GCC fully, namely @code{SUNWarc}, |
3263 | @code{SUNWbtool}, @code{SUNWesu}, @code{SUNWhea}, @code{SUNWlibm}, | |
3264 | @code{SUNWsprot}, and @code{SUNWtoo}. If you did not install all | |
250d5688 | 3265 | optional packages when installing Solaris 2, you will need to verify that |
b8df899a JM |
3266 | the packages that GCC needs are installed. |
3267 | ||
3268 | To check whether an optional package is installed, use | |
dbd210ef | 3269 | the @command{pkginfo} command. To add an optional package, use the |
250d5688 | 3270 | @command{pkgadd} command. For further details, see the Solaris 2 |
b8df899a JM |
3271 | documentation. |
3272 | ||
250d5688 | 3273 | Trying to use the linker and other tools in |
b8df899a JM |
3274 | @file{/usr/ucb} to install GCC has been observed to cause trouble. |
3275 | For example, the linker may hang indefinitely. The fix is to remove | |
250d5688 | 3276 | @file{/usr/ucb} from your @env{PATH}. |
f42974dc | 3277 | |
021c4bfd RO |
3278 | All releases of GNU binutils prior to 2.11.2 have known bugs on this |
3279 | platform. We recommend the use of GNU binutils 2.11.2 or the vendor | |
3280 | tools (Sun @command{as}, Sun @command{ld}). | |
f42974dc | 3281 | |
250d5688 RO |
3282 | Sun bug 4296832 turns up when compiling X11 headers with GCC 2.95 or |
3283 | newer: @command{g++} will complain that types are missing. These headers assume | |
3284 | that omitting the type means @code{int}; this assumption worked for C89 but | |
3285 | is wrong for C++, and is now wrong for C99 also. | |
3286 | ||
13ba36b4 | 3287 | @command{g++} accepts such (invalid) constructs with the option |
250d5688 RO |
3288 | @option{-fpermissive}; it |
3289 | will assume that any missing type is @code{int} (as defined by C89). | |
3290 | ||
3291 | There are patches for Solaris 2.6 (105633-56 or newer for SPARC, | |
3292 | 106248-42 or newer for Intel), Solaris 7 (108376-21 or newer for SPARC, | |
3293 | 108377-20 for Intel), and Solaris 8 (108652-24 or newer for SPARC, | |
3294 | 108653-22 for Intel) that fix this bug. | |
f42974dc | 3295 | |
dbd210ef KC |
3296 | @html |
3297 | </p> | |
3298 | <hr> | |
3299 | @end html | |
250d5688 | 3300 | @heading @anchor{sparc-sun-solaris2*}sparc-sun-solaris2* |
dbd210ef | 3301 | |
250d5688 | 3302 | Sun @command{as} 4.x is broken in that it cannot cope with long symbol names. |
dbd210ef KC |
3303 | A typical error message might look similar to the following: |
3304 | ||
3305 | @samp{/usr/ccs/bin/as: "/var/tmp/ccMsw135.s", line 11041: | |
3306 | error: can't compute value of an expression involving an external symbol.} | |
3307 | ||
250d5688 RO |
3308 | This is Sun bug 4237974. This is fixed with patch 108908-02 for Solaris |
3309 | 2.6 and has been fixed in later (5.x) versions of the assembler, | |
3310 | starting with Solaris 7. | |
dbd210ef | 3311 | |
03b272d2 | 3312 | Starting with Solaris 7, the operating system is capable of executing |
edf1c8df DM |
3313 | 64-bit SPARC V9 binaries. GCC 3.1 and later should properly support |
3314 | this. GCC 3.0 lacks the infrastructure necessary to support this | |
3315 | configuration properly. However, if all you want is code tuned for | |
3316 | the UltraSPARC CPU, you should try the @option{-mtune=ultrasparc} | |
3317 | option instead, which should be safe from those bugs and produce code | |
3318 | that, unlike full 64-bit code, can still run on non-UltraSPARC | |
3319 | machines. | |
03b272d2 | 3320 | |
f42974dc DW |
3321 | @html |
3322 | </p> | |
3323 | <hr> | |
f42974dc | 3324 | @end html |
ef88b07d | 3325 | @heading @anchor{sparc-sun-solaris2.7}sparc-sun-solaris2.7 |
f42974dc | 3326 | |
250d5688 | 3327 | Sun patch 107058-01 (1999-01-13) for Solaris 7/SPARC triggers a bug in |
f42974dc DW |
3328 | the dynamic linker. This problem (Sun bug 4210064) affects GCC 2.8 |
3329 | and later, including all EGCS releases. Sun formerly recommended | |
3330 | 107058-01 for all Solaris 7 users, but around 1999-09-01 it started to | |
3331 | recommend it only for people who use Sun's compilers. | |
f9047ed3 | 3332 | |
f42974dc DW |
3333 | Here are some workarounds to this problem: |
3334 | @itemize @bullet | |
3335 | @item | |
3336 | Do not install Sun patch 107058-01 until after Sun releases a | |
3337 | complete patch for bug 4210064. This is the simplest course to take, | |
3338 | unless you must also use Sun's C compiler. Unfortunately 107058-01 | |
250d5688 | 3339 | is preinstalled on some new Solaris 7-based hosts, so you may have to |
f42974dc | 3340 | back it out. |
f9047ed3 | 3341 | |
f42974dc DW |
3342 | @item |
3343 | Copy the original, unpatched Solaris 7 | |
3344 | @command{/usr/ccs/bin/as} into | |
021c4bfd | 3345 | @command{/usr/local/lib/gcc-lib/sparc-sun-solaris2.7/3.0/as}, |
f42974dc DW |
3346 | adjusting the latter name to fit your local conventions and software |
3347 | version numbers. | |
3348 | ||
3349 | @item | |
3350 | Install Sun patch 106950-03 (1999-05-25) or later. Nobody with | |
3351 | both 107058-01 and 106950-03 installed has reported the bug with GCC | |
3352 | and Sun's dynamic linker. This last course of action is riskiest, | |
3353 | for two reasons. First, you must install 106950 on all hosts that | |
3354 | run code generated by GCC; it doesn't suffice to install it only on | |
3355 | the hosts that run GCC itself. Second, Sun says that 106950-03 is | |
3356 | only a partial fix for bug 4210064, but Sun doesn't know whether the | |
161d7b59 | 3357 | partial fix is adequate for GCC@. Revision -08 or later should fix |
250d5688 RO |
3358 | the bug. The current (as of 2001-09-24) revision is -14, and is included in |
3359 | the Solaris 7 Recommended Patch Cluster. | |
f9047ed3 | 3360 | @end itemize |
f42974dc DW |
3361 | |
3362 | ||
3363 | @html | |
3364 | <p> | |
3365 | <hr> | |
f42974dc | 3366 | @end html |
250d5688 | 3367 | @heading @anchor{*-*-solaris2.8}*-*-solaris2.8 |
f42974dc | 3368 | |
250d5688 | 3369 | The Solaris 8 linker fails to link some @samp{libjava} programs if |
0e96b203 | 3370 | previously-installed GCC java libraries already exist in the configured |
021c4bfd | 3371 | prefix. For this reason, @samp{libgcj} is disabled by default on Solaris 8. |
250d5688 | 3372 | If you use GNU @command{ld}, or if you don't have a previously-installed @samp{libgcj} in |
0e96b203 AO |
3373 | the same prefix, use @option{--enable-libgcj} to build and install the |
3374 | Java libraries. | |
f42974dc DW |
3375 | |
3376 | @html | |
3377 | <p> | |
3378 | <hr> | |
f42974dc | 3379 | @end html |
250d5688 | 3380 | @heading @anchor{sparc-sun-sunos4*}sparc-sun-sunos4* |
f42974dc | 3381 | |
021c4bfd | 3382 | A bug in the SunOS 4 linker will cause it to crash when linking |
6cfb3f16 | 3383 | @option{-fPIC} compiled objects (and will therefore not allow you to build |
f42974dc DW |
3384 | shared libraries). |
3385 | ||
3386 | To fix this problem you can either use the most recent version of | |
021c4bfd | 3387 | binutils or get the latest SunOS 4 linker patch (patch ID 100170-10) |
f42974dc DW |
3388 | from Sun's patch site. |
3389 | ||
dbd210ef KC |
3390 | Sometimes on a Sun 4 you may observe a crash in the program |
3391 | @command{genflags} or @command{genoutput} while building GCC. This is said to | |
3392 | be due to a bug in @command{sh}. You can probably get around it by running | |
3393 | @command{genflags} or @command{genoutput} manually and then retrying the | |
3394 | @command{make}. | |
f42974dc DW |
3395 | |
3396 | @html | |
3397 | </p> | |
3398 | <hr> | |
f42974dc | 3399 | @end html |
ef88b07d | 3400 | @heading @anchor{sparc-unknown-linux-gnulibc1}sparc-unknown-linux-gnulibc1 |
f42974dc | 3401 | |
f9047ed3 | 3402 | It has been reported that you might need |
021c4bfd | 3403 | @uref{ftp://ftp.yggdrasil.com/private/hjl,,binutils 2.8.1.0.23} |
f42974dc DW |
3404 | for this platform, too. |
3405 | ||
3406 | ||
3407 | @html | |
3408 | </p> | |
3409 | <hr> | |
f42974dc | 3410 | @end html |
ef88b07d | 3411 | @heading @anchor{sparc64-*-*}sparc64-*-* |
f42974dc DW |
3412 | |
3413 | GCC version 2.95 is not able to compile code correctly for | |
3414 | @code{sparc64} targets. Users of the Linux kernel, at least, | |
e9d21442 | 3415 | can use the @code{sparc32} program to start up a new shell |
f42974dc | 3416 | invocation with an environment that causes @command{configure} to |
021c4bfd | 3417 | recognize (via @samp{uname -a}) the system as @samp{sparc-*-*} instead. |
f42974dc DW |
3418 | |
3419 | ||
b8df899a JM |
3420 | @html |
3421 | </p> | |
3422 | <hr> | |
3423 | @end html | |
3424 | @heading @anchor{#*-*-sysv*}*-*-sysv* | |
3425 | On System V release 3, you may get this error message | |
3426 | while linking: | |
3427 | ||
3428 | @smallexample | |
3429 | ld fatal: failed to write symbol name @var{something} | |
3430 | in strings table for file @var{whatever} | |
3431 | @end smallexample | |
3432 | ||
021c4bfd | 3433 | This probably indicates that the disk is full or your ulimit won't allow |
b8df899a JM |
3434 | the file to be as large as it needs to be. |
3435 | ||
3436 | This problem can also result because the kernel parameter @code{MAXUMEM} | |
3437 | is too small. If so, you must regenerate the kernel and make the value | |
3438 | much larger. The default value is reported to be 1024; a value of 32768 | |
3439 | is said to work. Smaller values may also work. | |
3440 | ||
3441 | On System V, if you get an error like this, | |
3442 | ||
3443 | @example | |
3444 | /usr/local/lib/bison.simple: In function `yyparse': | |
3445 | /usr/local/lib/bison.simple:625: virtual memory exhausted | |
3446 | @end example | |
3447 | ||
3448 | @noindent | |
021c4bfd | 3449 | that too indicates a problem with disk space, ulimit, or @code{MAXUMEM}. |
b8df899a | 3450 | |
f85b8d1a JM |
3451 | On a System V release 4 system, make sure @file{/usr/bin} precedes |
3452 | @file{/usr/ucb} in @code{PATH}. The @code{cc} command in | |
3453 | @file{/usr/ucb} uses libraries which have bugs. | |
b8df899a JM |
3454 | |
3455 | @html | |
3456 | </p> | |
3457 | <hr> | |
3458 | @end html | |
3459 | @heading @anchor{vax-dec-ultrix}vax-dec-ultrix | |
8aeea6e6 | 3460 | Don't try compiling with VAX C (@code{vcc}). It produces incorrect code |
b8df899a JM |
3461 | in some cases (for example, when @code{alloca} is used). |
3462 | ||
b8df899a JM |
3463 | @html |
3464 | </p> | |
3465 | <hr> | |
3466 | @end html | |
3467 | @heading @anchor{we32k-*-*}we32k-*-* | |
3468 | These computers are also known as the 3b2, 3b5, 3b20 and other similar | |
3469 | names. (However, the 3b1 is actually a 68000.) | |
3470 | ||
6cfb3f16 | 3471 | Don't use @option{-g} when compiling with the system's compiler. The |
b8df899a JM |
3472 | system's linker seems to be unable to handle such a large program with |
3473 | debugging information. | |
3474 | ||
3475 | The system's compiler runs out of capacity when compiling @file{stmt.c} | |
161d7b59 | 3476 | in GCC@. You can work around this by building @file{cpp} in GCC |
b8df899a JM |
3477 | first, then use that instead of the system's preprocessor with the |
3478 | system's C compiler to compile @file{stmt.c}. Here is how: | |
3479 | ||
3480 | @smallexample | |
3481 | mv /lib/cpp /lib/cpp.att | |
3482 | cp cpp /lib/cpp.gnu | |
3483 | echo '/lib/cpp.gnu -traditional $@{1+"$@@"@}' > /lib/cpp | |
3484 | chmod +x /lib/cpp | |
3485 | @end smallexample | |
3486 | ||
f0523f02 | 3487 | The system's compiler produces bad code for some of the GCC |
b8df899a JM |
3488 | optimization files. So you must build the stage 2 compiler without |
3489 | optimization. Then build a stage 3 compiler with optimization. | |
3490 | That executable should work. Here are the necessary commands: | |
3491 | ||
3492 | @smallexample | |
3493 | make LANGUAGES=c CC=stage1/xgcc CFLAGS="-Bstage1/ -g" | |
3494 | make stage2 | |
3495 | make CC=stage2/xgcc CFLAGS="-Bstage2/ -g -O" | |
3496 | @end smallexample | |
3497 | ||
3498 | You may need to raise the ULIMIT setting to build a C++ compiler, | |
3499 | as the file @file{cc1plus} is larger than one megabyte. | |
3500 | ||
f42974dc DW |
3501 | @html |
3502 | </p> | |
3503 | <hr> | |
f42974dc | 3504 | @end html |
ef88b07d | 3505 | @heading @anchor{windows}Microsoft Windows (32 bit) |
f42974dc | 3506 | |
f9047ed3 | 3507 | A port of GCC 2.95.x is included with the |
f42974dc DW |
3508 | @uref{http://www.cygwin.com/,,Cygwin environment}. |
3509 | ||
3510 | Current (as of early 2001) snapshots of GCC will build under Cygwin | |
3511 | without modification. | |
3512 | ||
3513 | @html | |
3514 | </p> | |
3515 | <hr> | |
f42974dc | 3516 | @end html |
ef88b07d | 3517 | @heading @anchor{os2}OS/2 |
f42974dc DW |
3518 | |
3519 | GCC does not currently support OS/2. However, Andrew Zabolotny has been | |
14976c58 | 3520 | working on a generic OS/2 port with pgcc. The current code can be found |
f42974dc DW |
3521 | at @uref{http://www.goof.com/pcg/os2/,,http://www.goof.com/pcg/os2/}. |
3522 | ||
f9047ed3 | 3523 | An older copy of GCC 2.8.1 is included with the EMX tools available at |
f42974dc DW |
3524 | @uref{ftp://ftp.leo.org/pub/comp/os/os2/leo/devtools/emx+gcc/,, |
3525 | ftp://ftp.leo.org/pub/comp/os/os2/leo/devtools/emx+gcc/}. | |
3526 | ||
3527 | @html | |
3528 | </p> | |
3529 | <hr> | |
f42974dc | 3530 | @end html |
ef88b07d | 3531 | @heading @anchor{older}Older systems |
f9047ed3 JM |
3532 | |
3533 | GCC contains support files for many older (1980s and early | |
3534 | 1990s) Unix variants. For the most part, support for these systems | |
3535 | has not been deliberately removed, but it has not been maintained for | |
3536 | several years and may suffer from bitrot. Support from some systems | |
3537 | has been removed from GCC 3: fx80, ns32-ns-genix, pyramid, tahoe, | |
3538 | gmicro, spur; most of these targets had not been updated since GCC | |
f42974dc | 3539 | version 1. |
f9047ed3 JM |
3540 | |
3541 | Support for older systems as targets for cross-compilation is less | |
3542 | problematic than support for them as hosts for GCC; if an enthusiast | |
3543 | wishes to make such a target work again (including resurrecting any | |
3544 | of the targets that never worked with GCC 2, starting from the last | |
3545 | CVS version before they were removed), patches | |
3546 | @uref{../contribute.html,,following the usual requirements} | |
3547 | would be likely to be accepted, since they should not affect the | |
f42974dc | 3548 | support for more modern targets. |
f9047ed3 JM |
3549 | |
3550 | Support for old systems as hosts for GCC can cause problems if the | |
3551 | workarounds for compiler, library and operating system bugs affect the | |
161d7b59 | 3552 | cleanliness or maintainability of the rest of GCC@. In some cases, to |
f9047ed3 JM |
3553 | bring GCC up on such a system, if still possible with current GCC, may |
3554 | require first installing an old version of GCC which did work on that | |
3555 | system, and using it to compile a more recent GCC, to avoid bugs in | |
3556 | the vendor compiler. Old releases of GCC 1 and GCC 2 are available in | |
021c4bfd | 3557 | the @file{old-releases} directory on the |
f9047ed3 | 3558 | @uref{../mirrors.html,,GCC mirror sites}. Header bugs may generally |
38209993 LG |
3559 | be avoided using @command{fixincludes}, but bugs or deficiencies in |
3560 | libraries and the operating system may still cause problems. | |
f9047ed3 JM |
3561 | |
3562 | For some systems, old versions of GNU binutils may also be useful, | |
021c4bfd | 3563 | and are available from @file{pub/binutils/old-releases} on |
f42974dc | 3564 | @uref{http://sources.redhat.com/mirrors.html,,sources.redhat.com mirror sites}. |
f9047ed3 JM |
3565 | |
3566 | Some of the information on specific systems above relates to | |
3567 | such older systems, but much of the information | |
3568 | about GCC on such systems (which may no longer be applicable to | |
f42974dc | 3569 | current GCC) is to be found in the GCC texinfo manual. |
f9047ed3 | 3570 | |
f42974dc DW |
3571 | @html |
3572 | </p> | |
3573 | <hr> | |
f42974dc | 3574 | @end html |
250d5688 | 3575 | @heading @anchor{elf_targets}all ELF targets (SVR4, Solaris 2, etc.) |
f42974dc | 3576 | |
38209993 LG |
3577 | C++ support is significantly better on ELF targets if you use the |
3578 | @uref{./configure.html#with-gnu-ld,,GNU linker}; duplicate copies of | |
3579 | inlines, vtables and template instantiations will be discarded | |
3580 | automatically. | |
f42974dc DW |
3581 | |
3582 | ||
3583 | @html | |
3584 | </p> | |
3585 | <hr> | |
3586 | <p> | |
3587 | @end html | |
3588 | @ifhtml | |
3589 | @uref{./index.html,,Return to the GCC Installation page} | |
3590 | @end ifhtml | |
3591 | @end ifset | |
3592 | ||
3593 | @c *************************************************************************** | |
3594 | @c Part 6 The End of the Document | |
3595 | @ifinfo | |
3596 | @comment node-name, next, previous, up | |
3597 | @node Concept Index, , Specific, Top | |
3598 | @end ifinfo | |
3599 | ||
3600 | @ifinfo | |
3601 | @unnumbered Concept Index | |
3602 | ||
3603 | @printindex cp | |
3604 | ||
3605 | @contents | |
3606 | @end ifinfo | |
3607 | @bye |