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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 |
161d7b59 | 312 | GCC@. A partial list of supported @var{options}: |
f42974dc | 313 | |
ef88b07d JM |
314 | @table @code |
315 | @item --prefix=@var{dirname} | |
316 | Specify the toplevel installation | |
f42974dc DW |
317 | directory. This is the recommended way to install the tools into a directory |
318 | other than the default. The toplevel installation directory defaults to | |
6cfb3f16 | 319 | @file{/usr/local}. |
f42974dc | 320 | |
38209993 LG |
321 | We @strong{highly} recommend against @var{dirname} being the same or a |
322 | subdirectory of @var{objdir} or vice versa. | |
f42974dc DW |
323 | |
324 | These additional options control where certain parts of the distribution | |
325 | are installed. Normally you should not need to use these options. | |
ef88b07d | 326 | @table @code |
f42974dc | 327 | |
ab130aa5 JM |
328 | @item --exec-prefix=@var{dirname} |
329 | Specify the toplevel installation directory for architecture-dependent | |
330 | files. The default is @file{@var{prefix}}. | |
331 | ||
332 | @item --bindir=@var{dirname} | |
333 | Specify the installation directory for the executables called by users | |
334 | (such as @command{gcc} and @command{g++}). The default is | |
335 | @file{@var{exec-prefix}/bin}. | |
336 | ||
337 | @item --libdir=@var{dirname} | |
338 | Specify the installation directory for object code libraries and | |
161d7b59 | 339 | internal parts of GCC@. The default is @file{@var{exec-prefix}/lib}. |
ab130aa5 JM |
340 | |
341 | @item --with-slibdir=@var{dirname} | |
342 | Specify the installation directory for the shared libgcc library. The | |
343 | default is @file{@var{libdir}}. | |
344 | ||
345 | @item --infodir=@var{dirname} | |
346 | Specify the installation directory for documentation in info format. | |
347 | The default is @file{@var{prefix}/info}. | |
348 | ||
349 | @item --mandir=@var{dirname} | |
350 | Specify the installation directory for manual pages. The default is | |
351 | @file{@var{prefix}/man}. (Note that the manual pages are only extracts from | |
352 | the full GCC manuals, which are provided in Texinfo format. The | |
353 | @command{g77} manpage is unmaintained and may be out of date; the others | |
354 | are derived by an automatic conversion process from parts of the full | |
355 | manual.) | |
356 | ||
ef88b07d JM |
357 | @item --with-gxx-include-dir=@var{dirname} |
358 | Specify | |
eea81d3e | 359 | the installation directory for G++ header files. The default is |
ecb7d6b3 JM |
360 | @file{@var{prefix}/include/g++-v3}. |
361 | ||
ef88b07d | 362 | @end table |
f42974dc | 363 | |
ef88b07d JM |
364 | @item --with-local-prefix=@var{dirname} |
365 | Specify the | |
6ac48571 JM |
366 | installation directory for local include files. The default is |
367 | @file{/usr/local}. Specify this option if you want the compiler to | |
368 | search directory @file{@var{dirname}/include} for locally installed | |
369 | header files @emph{instead} of @file{/usr/local/include}. | |
370 | ||
371 | You should specify @option{--with-local-prefix} @strong{only} if your | |
372 | site has a different convention (not @file{/usr/local}) for where to put | |
373 | site-specific files. | |
374 | ||
375 | The default value for @option{--with-local-prefix} is @file{/usr/local} | |
376 | regardless of the value of @option{--prefix}. Specifying | |
377 | @option{--prefix} has no effect on which directory GCC searches for | |
378 | local header files. This may seem counterintuitive, but actually it is | |
379 | logical. | |
380 | ||
381 | The purpose of @option{--prefix} is to specify where to @emph{install | |
382 | GCC}. The local header files in @file{/usr/local/include}---if you put | |
161d7b59 | 383 | any in that directory---are not part of GCC@. They are part of other |
6ac48571 JM |
384 | programs---perhaps many others. (GCC installs its own header files in |
385 | another directory which is based on the @option{--prefix} value.) | |
386 | ||
387 | @strong{Do not} specify @file{/usr} as the @option{--with-local-prefix}! | |
388 | The directory you use for @option{--with-local-prefix} @strong{must not} | |
389 | contain any of the system's standard header files. If it did contain | |
390 | them, certain programs would be miscompiled (including GNU Emacs, on | |
391 | certain targets), because this would override and nullify the header | |
392 | file corrections made by the @code{fixincludes} script. | |
393 | ||
394 | Indications are that people who use this option use it based on mistaken | |
395 | ideas of what it is for. People use it as if it specified where to | |
161d7b59 | 396 | install part of GCC@. Perhaps they make this assumption because |
6ac48571 JM |
397 | installing GCC creates the directory. |
398 | ||
6cfb3f16 | 399 | @item --enable-shared[=@var{package}[,@dots{}]] |
0cb98517 AO |
400 | Build shared versions of libraries, if shared libraries are supported on |
401 | the target platform. Unlike GCC 2.95.x and earlier, shared libraries | |
eea81d3e RO |
402 | are enabled by default on all platforms that support shared libraries, |
403 | except for @samp{libobjc} which is built as a static library only by | |
404 | default. | |
0cb98517 AO |
405 | |
406 | If a list of packages is given as an argument, build shared libraries | |
407 | only for the listed packages. For other packages, only static libraries | |
408 | will be built. Package names currently recognized in the GCC tree are | |
409 | @samp{libgcc} (also known as @samp{gcc}), @samp{libstdc++} (not | |
410 | @samp{libstdc++-v3}), @samp{libffi}, @samp{zlib}, @samp{boehm-gc} and | |
411 | @samp{libjava}. Note that @samp{libobjc} does not recognize itself by | |
412 | any name, so, if you list package names in @option{--enable-shared}, | |
eea81d3e | 413 | you will only get static Objective-C libraries. @samp{libf2c} and |
0cb98517 AO |
414 | @samp{libiberty} do not support shared libraries at all. |
415 | ||
416 | Use @option{--disable-shared} to build only static libraries. Note that | |
417 | @option{--disable-shared} does not accept a list of package names as | |
418 | argument, only @option{--enable-shared} does. | |
f42974dc | 419 | |
ef88b07d JM |
420 | @item @anchor{with-gnu-as}--with-gnu-as |
421 | Specify that the compiler should assume that the | |
767094dd | 422 | assembler it finds is the GNU assembler. However, this does not modify |
38209993 | 423 | the rules to find an assembler and will result in confusion if found |
8c26c999 JM |
424 | assembler is not actually the GNU assembler. (Confusion will also |
425 | result if the compiler finds the GNU assembler but has not been | |
426 | configured with @option{--with-gnu-as}.) If you have more than one | |
38209993 | 427 | assembler installed on your system, you may want to use this option in |
eea81d3e | 428 | connection with @option{--with-as=@var{pathname}}. |
38209993 | 429 | |
8c26c999 JM |
430 | The systems where it makes a difference whether you use the GNU assembler are |
431 | @samp{hppa1.0-@var{any}-@var{any}}, @samp{hppa1.1-@var{any}-@var{any}}, | |
432 | @samp{i386-@var{any}-sysv}, @samp{i386-@var{any}-isc}, | |
433 | @samp{i860-@var{any}-bsd}, @samp{m68k-bull-sysv}, | |
434 | @samp{m68k-hp-hpux}, @samp{m68k-sony-bsd}, | |
435 | @samp{m68k-altos-sysv}, @samp{m68000-hp-hpux}, | |
436 | @samp{m68000-att-sysv}, @samp{@var{any}-lynx-lynxos}, | |
437 | and @samp{mips-@var{any}}. | |
438 | On any other system, @option{--with-gnu-as} has no effect. | |
439 | ||
440 | On the systems listed above (except for the HP-PA, for ISC on the | |
441 | 386, and for @samp{mips-sgi-irix5.*}), if you use the GNU assembler, | |
442 | you should also use the GNU linker (and specify @option{--with-gnu-ld}). | |
443 | ||
eea81d3e | 444 | @item --with-as=@var{pathname} |
ef88b07d | 445 | Specify that the |
38209993 LG |
446 | compiler should use the assembler pointed to by @var{pathname}, rather |
447 | than the one found by the standard rules to find an assembler, which | |
448 | are: | |
f42974dc DW |
449 | @itemize @bullet |
450 | @item | |
38209993 LG |
451 | Check the |
452 | @file{@var{exec_prefix}/lib/gcc-lib/@var{target}/@var{version}} | |
453 | directory, where @var{exec_prefix} defaults to @var{prefix} which | |
454 | defaults to @file{/usr/local} unless overridden by the | |
eea81d3e | 455 | @option{--prefix=@var{pathname}} switch described above. @var{target} is the |
b953cc4b | 456 | target system triple, such as @samp{sparc-sun-solaris2.7}, and |
eea81d3e | 457 | @var{version} denotes the GCC version, such as 3.0. |
f42974dc | 458 | @item |
e979f9e8 | 459 | Check operating system specific directories (e.g.@: @file{/usr/ccs/bin} on |
38209993 | 460 | Sun Solaris). |
f42974dc | 461 | @end itemize |
767094dd | 462 | Note that these rules do not check for the value of @env{PATH}. You may |
38209993 LG |
463 | want to use @option{--with-as} if no assembler is installed in the |
464 | directories listed above, or if you have multiple assemblers installed | |
465 | and want to choose one that is not found by the above rules. | |
f42974dc | 466 | |
ef88b07d JM |
467 | @item @anchor{with-gnu-ld}--with-gnu-ld |
468 | Same as @uref{#with-gnu-as,,@option{--with-gnu-as}} | |
38209993 | 469 | but for linker. |
20293b4c | 470 | |
f42974dc | 471 | |
eea81d3e | 472 | @item --with-ld=@var{pathname} |
ef88b07d | 473 | Same as |
38209993 | 474 | @option{--with-as}, but for the linker. |
f42974dc | 475 | |
ef88b07d JM |
476 | @item --with-stabs |
477 | Specify that stabs debugging | |
38209993 LG |
478 | information should be used instead of whatever format the host normally |
479 | uses. Normally GCC uses the same debug format as the host system. | |
f42974dc | 480 | |
8c26c999 JM |
481 | On MIPS based systems and on Alphas, you must specify whether you want |
482 | GCC to create the normal ECOFF debugging format, or to use BSD-style | |
483 | stabs passed through the ECOFF symbol table. The normal ECOFF debug | |
161d7b59 JM |
484 | format cannot fully handle languages other than C@. BSD stabs format can |
485 | handle other languages, but it only works with the GNU debugger GDB@. | |
8c26c999 JM |
486 | |
487 | Normally, GCC uses the ECOFF debugging format by default; if you | |
161d7b59 | 488 | prefer BSD stabs, specify @option{--with-stabs} when you configure GCC@. |
8c26c999 JM |
489 | |
490 | No matter which default you choose when you configure GCC, the user | |
491 | can use the @option{-gcoff} and @option{-gstabs+} options to specify explicitly | |
492 | the debug format for a particular compilation. | |
493 | ||
494 | @option{--with-stabs} is meaningful on the ISC system on the 386, also, if | |
495 | @option{--with-gas} is used. It selects use of stabs debugging | |
496 | information embedded in COFF output. This kind of debugging information | |
497 | supports C++ well; ordinary COFF debugging information does not. | |
498 | ||
499 | @option{--with-stabs} is also meaningful on 386 systems running SVR4. It | |
500 | selects use of stabs debugging information embedded in ELF output. The | |
501 | C++ compiler currently (2.6.0) does not support the DWARF debugging | |
502 | information normally used on 386 SVR4 platforms; stabs provide a | |
503 | workable alternative. This requires gas and gdb, as the normal SVR4 | |
504 | tools can not generate or interpret stabs. | |
505 | ||
eea81d3e | 506 | @item --disable-multilib |
ef88b07d | 507 | Specify that multiple target |
eea81d3e RO |
508 | libraries to support different target variants, calling |
509 | conventions, etc should not be built. The default is to build a | |
510 | predefined set of them. | |
f42974dc | 511 | |
e8515283 DE |
512 | Some targets provide finer-grained control over which multilibs are built |
513 | (e.g., @option{--disable-softfloat}): | |
514 | @table @code | |
515 | ||
516 | @item arc-*-elf* | |
517 | biendian. | |
518 | ||
519 | @item arm-*-* | |
520 | fpu, 26bit, underscore, interwork, biendian, nofmult. | |
521 | ||
522 | @item m68*-*-* | |
523 | softfloat, m68881, m68000, m68020. | |
524 | ||
525 | @item mips*-*-* | |
526 | single-float, biendian, softfloat. | |
527 | ||
528 | @item powerpc*-*-*, rs6000*-*-* | |
529 | aix64, pthread, softfloat, powercpu, powerpccpu, powerpcos, biendian, | |
530 | sysv, aix. | |
531 | ||
532 | @end table | |
533 | ||
ef88b07d JM |
534 | @item --enable-threads |
535 | Specify that the target | |
38209993 LG |
536 | supports threads. This affects the Objective-C compiler and runtime |
537 | library, and exception handling for other languages like C++ and Java. | |
6ac48571 | 538 | On some systems, this is the default. |
f42974dc | 539 | |
f6160ed5 LR |
540 | In general, the best (and, in many cases, the only known) threading |
541 | model available will be configured for use. Beware that on some | |
542 | systems, gcc has not been taught what threading models are generally | |
3c6bb1db LR |
543 | available for the system. In this case, @option{--enable-threads} is an |
544 | alias for @option{--enable-threads=single}. | |
f6160ed5 LR |
545 | |
546 | @item --disable-threads | |
547 | Specify that threading support should be disabled for the system. | |
3c6bb1db | 548 | This is an alias for @option{--enable-threads=single}. |
f6160ed5 | 549 | |
ef88b07d JM |
550 | @item --enable-threads=@var{lib} |
551 | Specify that | |
38209993 LG |
552 | @var{lib} is the thread support library. This affects the Objective-C |
553 | compiler and runtime library, and exception handling for other languages | |
f85b8d1a JM |
554 | like C++ and Java. The possibilities for @var{lib} are: |
555 | ||
556 | @table @code | |
557 | @item aix | |
558 | AIX thread support. | |
559 | @item dce | |
560 | DCE thread support. | |
f85b8d1a | 561 | @item mach |
eea81d3e | 562 | Generic MACH thread support, known to work on NeXTSTEP@. (Please note |
3c6bb1db | 563 | that the file needed to support this configuration, @file{gthr-mach.h}, is |
f6160ed5 LR |
564 | missing and thus this setting will cause a known bootstrap failure.) |
565 | @item no | |
566 | This is an alias for @samp{single}. | |
f85b8d1a | 567 | @item posix |
c771326b | 568 | Generic POSIX thread support. |
f85b8d1a | 569 | @item pthreads |
f6160ed5 LR |
570 | Same as @samp{posix} on arm*-*-linux*, *-*-chorusos* and *-*-freebsd* |
571 | only. A future release of gcc might remove this alias or extend it | |
572 | to all platforms. | |
573 | @item rtems | |
574 | RTEMS thread support. | |
f85b8d1a JM |
575 | @item single |
576 | Disable thread support, should work for all platforms. | |
577 | @item solaris | |
eea81d3e | 578 | Sun Solaris 2 thread support. |
f85b8d1a JM |
579 | @item vxworks |
580 | VxWorks thread support. | |
581 | @item win32 | |
582 | Microsoft Win32 API thread support. | |
583 | @end table | |
f42974dc | 584 | |
ef88b07d JM |
585 | @item --with-cpu=@var{cpu} |
586 | Specify which cpu variant the | |
f42974dc DW |
587 | compiler should generate code for by default. This is currently |
588 | only supported on the some ports, specifically arm, powerpc, and | |
161d7b59 | 589 | SPARC@. If configure does not recognize the model name (e.g.@: arm700, |
f42974dc DW |
590 | 603e, or ultrasparc) you provide, please check the configure script |
591 | for a complete list of supported models. | |
592 | ||
ef88b07d JM |
593 | @item --enable-target-optspace |
594 | Specify that target | |
38209993 LG |
595 | libraries should be optimized for code space instead of code speed. |
596 | This is the default for the m32r platform. | |
f42974dc | 597 | |
ab130aa5 JM |
598 | @item --disable-cpp |
599 | Specify that a user visible @command{cpp} program should not be installed. | |
600 | ||
601 | @item --with-cpp-install-dir=@var{dirname} | |
602 | Specify that the user visible @command{cpp} program should be installed | |
603 | in @file{@var{prefix}/@var{dirname}/cpp}, in addition to @var{bindir}. | |
f42974dc | 604 | |
ef88b07d JM |
605 | @item --enable-maintainer-mode |
606 | The build rules that | |
6cfb3f16 | 607 | regenerate the GCC master message catalog @file{gcc.pot} are normally |
767094dd JM |
608 | disabled. This is because it can only be rebuilt if the complete source |
609 | tree is present. If you have changed the sources and want to rebuild the | |
6ac48571 | 610 | catalog, configuring with @option{--enable-maintainer-mode} will enable |
767094dd | 611 | this. Note that you need a recent version of the @code{gettext} tools |
6ac48571 JM |
612 | to do so. |
613 | ||
ef88b07d JM |
614 | @item --enable-version-specific-runtime-libs |
615 | Specify | |
38209993 LG |
616 | that runtime libraries should be installed in the compiler specific |
617 | subdirectory (@file{@var{libsubdir}}) rather than the usual places. In | |
eea81d3e | 618 | addition, @samp{libstdc++}'s include files will be installed in |
38209993 | 619 | @file{@var{libsubdir}/include/g++} unless you overruled it by using |
6cfb3f16 | 620 | @option{--with-gxx-include-dir=@var{dirname}}. Using this option is |
38209993 | 621 | particularly useful if you intend to use several versions of GCC in |
eea81d3e RO |
622 | parallel. This is currently supported by @samp{libf2c} and |
623 | @samp{libstdc++}, and is the default for @samp{libobjc} which cannot be | |
624 | changed in this case. | |
38209993 | 625 | |
ef88b07d JM |
626 | @item --enable-languages=@var{lang1},@var{lang2},@dots{} |
627 | Specify that only a particular subset of compilers and | |
767094dd | 628 | their runtime libraries should be built. For a list of valid values for |
6cfb3f16 | 629 | @var{langN} you can issue the following command in the |
eea81d3e RO |
630 | @file{gcc} directory of your GCC source tree:@* |
631 | @example | |
632 | grep language= */config-lang.in | |
633 | @end example | |
634 | Currently, you can use any of the following: | |
c51b1b1b | 635 | @code{c}, @code{c++}, @code{f77}, @code{java} and @code{objc}. |
f42974dc | 636 | @code{CHILL} is not currently maintained, and will almost |
eea81d3e | 637 | certainly fail to compile.@* |
38209993 | 638 | If you do not pass this flag, all languages available in the @file{gcc} |
6cfb3f16 | 639 | sub-tree will be configured. Re-defining @code{LANGUAGES} when calling |
ef88b07d | 640 | @samp{make bootstrap} @strong{does not} work anymore, as those |
38209993 | 641 | language sub-directories might not have been configured! |
f42974dc | 642 | |
ef88b07d JM |
643 | @item --disable-libgcj |
644 | Specify that the run-time libraries | |
f42974dc DW |
645 | used by GCJ should not be built. This is useful in case you intend |
646 | to use GCJ with some other run-time, or you're going to install it | |
647 | separately, or it just happens not to build on your particular | |
6c0a4eab | 648 | machine. In general, if the Java front end is enabled, the GCJ |
f42974dc | 649 | libraries will be enabled too, unless they're known to not work on |
eea81d3e | 650 | the target platform. If GCJ is enabled but @samp{libgcj} isn't built, you |
f42974dc | 651 | may need to port it; in this case, before modifying the top-level |
eea81d3e | 652 | @file{configure.in} so that @samp{libgcj} is enabled by default on this platform, |
f42974dc DW |
653 | you may use @option{--enable-libgcj} to override the default. |
654 | ||
ef88b07d JM |
655 | @item --with-dwarf2 |
656 | Specify that the compiler should | |
eea81d3e | 657 | use DWARF 2 debugging information as the default. |
f85b8d1a JM |
658 | |
659 | @item --enable-win32-registry | |
eea81d3e | 660 | @itemx --enable-win32-registry=@var{key} |
f85b8d1a | 661 | @itemx --disable-win32-registry |
6cfb3f16 | 662 | The @option{--enable-win32-registry} option enables Windows-hosted GCC |
f85b8d1a JM |
663 | to look up installations paths in the registry using the following key: |
664 | ||
665 | @smallexample | |
eea81d3e | 666 | @code{HKEY_LOCAL_MACHINE\SOFTWARE\Free Software Foundation\@var{key}} |
f85b8d1a JM |
667 | @end smallexample |
668 | ||
eea81d3e RO |
669 | @var{key} defaults to GCC version number, and can be overridden by the |
670 | @option{--enable-win32-registry=@var{key}} option. Vendors and distributors | |
f85b8d1a JM |
671 | who use custom installers are encouraged to provide a different key, |
672 | perhaps one comprised of vendor name and GCC version number, to | |
767094dd | 673 | avoid conflict with existing installations. This feature is enabled |
6cfb3f16 | 674 | by default, and can be disabled by @option{--disable-win32-registry} |
f85b8d1a JM |
675 | option. This option has no effect on the other hosts. |
676 | ||
677 | @item --nfp | |
678 | Specify that the machine does not have a floating point unit. This | |
679 | option only applies to @samp{m68k-sun-sunos@var{n}} and | |
6cfb3f16 | 680 | @samp{m68k-isi-bsd}. On any other system, @option{--nfp} has no effect. |
f85b8d1a JM |
681 | |
682 | @item --enable-checking | |
683 | @itemx --enable-checking=@var{list} | |
684 | When you specify this option, the compiler is built to perform checking | |
685 | of tree node types when referencing fields of that node, and some other | |
686 | internal consistency checks. This does not change the generated code, | |
687 | but adds error checking within the compiler. This will slow down the | |
688 | compiler and may only work properly if you are building the compiler | |
161d7b59 | 689 | with GCC@. This is on by default when building from CVS or snapshots, |
f85b8d1a JM |
690 | but off for releases. More control over the checks may be had by |
691 | specifying @var{list}; the categories of checks available are | |
692 | @samp{misc}, @samp{tree}, @samp{gc}, @samp{rtl} and @samp{gcac}. The | |
693 | default when @var{list} is not specified is @samp{misc,tree,gc}; the | |
694 | checks @samp{rtl} and @samp{gcac} are very expensive. | |
695 | ||
696 | @item --enable-nls | |
697 | @itemx --disable-nls | |
6cfb3f16 | 698 | The @option{--enable-nls} option enables Native Language Support (NLS), |
f85b8d1a | 699 | which lets GCC output diagnostics in languages other than American |
767094dd | 700 | English. Native Language Support is enabled by default if not doing a |
161d7b59 | 701 | canadian cross build. The @option{--disable-nls} option disables NLS@. |
f85b8d1a JM |
702 | |
703 | @item --with-included-gettext | |
c771326b | 704 | If NLS is enabled, the @option{--with-included-gettext} option causes the build |
021c4bfd | 705 | procedure to prefer its copy of GNU @command{gettext}. |
f85b8d1a JM |
706 | |
707 | @item --with-catgets | |
708 | If NLS is enabled, and if the host lacks @code{gettext} but has the | |
709 | inferior @code{catgets} interface, the GCC build procedure normally | |
710 | ignores @code{catgets} and instead uses GCC's copy of the GNU | |
6cfb3f16 | 711 | @code{gettext} library. The @option{--with-catgets} option causes the |
f85b8d1a | 712 | build procedure to use the host's @code{catgets} in this situation. |
ef88b07d | 713 | @end table |
f42974dc DW |
714 | |
715 | Some options which only apply to building cross compilers: | |
ef88b07d JM |
716 | @table @code |
717 | @item --with-headers=@var{dir} | |
718 | Specifies a directory | |
38209993 | 719 | which has target include files. |
f42974dc | 720 | @emph{This options is required} when building a cross |
38209993 LG |
721 | compiler, if @file{@var{prefix}/@var{target}/sys-include} doesn't pre-exist. |
722 | These include files will be copied into the @file{gcc} install directory. | |
723 | Fixincludes will be run on these files to make them compatible with | |
eea81d3e | 724 | GCC. |
ef88b07d | 725 | @item --with-libs=``@var{dir1} @var{dir2} @dots{} @var{dirN}'' |
38209993 LG |
726 | Specifies a list of directories which contain the target runtime |
727 | libraries. These libraries will be copied into the @file{gcc} install | |
728 | directory. | |
ef88b07d | 729 | @item --with-newlib |
eea81d3e | 730 | Specifies that @samp{newlib} is |
38209993 | 731 | being used as the target C library. This causes @code{__eprintf} to be |
eea81d3e RO |
732 | omitted from @file{libgcc.a} on the assumption that it will be provided by |
733 | @samp{newlib}. | |
ef88b07d | 734 | @end table |
f9047ed3 | 735 | |
38209993 LG |
736 | Note that each @option{--enable} option has a corresponding |
737 | @option{--disable} option and that each @option{--with} option has a | |
738 | corresponding @option{--without} option. | |
f42974dc DW |
739 | |
740 | @html | |
741 | <hr> | |
742 | <p> | |
743 | @end html | |
744 | @ifhtml | |
745 | @uref{./index.html,,Return to the GCC Installation page} | |
746 | @end ifhtml | |
747 | @end ifset | |
748 | ||
749 | @c ***Building**************************************************************** | |
6cfb3f16 | 750 | @ifnothtml |
f42974dc DW |
751 | @comment node-name, next, previous, up |
752 | @node Building, Testing, Configuration, Installing GCC | |
6cfb3f16 | 753 | @end ifnothtml |
f42974dc DW |
754 | @ifset buildhtml |
755 | @html | |
756 | <h1 align="center">Installing GCC: Building</h1> | |
757 | @end html | |
758 | @ifnothtml | |
759 | @chapter Building | |
760 | @end ifnothtml | |
761 | @cindex Installing GCC: Building | |
762 | ||
763 | Now that GCC is configured, you are ready to build the compiler and | |
764 | runtime libraries. | |
765 | ||
766 | We @strong{highly} recommend that GCC be built using GNU make; | |
767 | other versions may work, then again they might not. | |
768 | ||
769 | (For example, many broken versions of make will fail if you use the | |
b8df899a JM |
770 | recommended setup where @var{objdir} is different from @var{srcdir}. |
771 | Other broken versions may recompile parts of the compiler when | |
772 | installing the compiler.) | |
f42974dc | 773 | |
b8df899a JM |
774 | Some commands executed when making the compiler may fail (return a |
775 | non-zero status) and be ignored by @code{make}. These failures, which | |
776 | are often due to files that were not found, are expected, and can safely | |
777 | be ignored. | |
778 | ||
779 | It is normal to have compiler warnings when compiling certain files. | |
780 | Unless you are a GCC developer, you can generally ignore these warnings | |
781 | unless they cause compilation to fail. | |
782 | ||
783 | On certain old systems, defining certain environment variables such as | |
6cfb3f16 | 784 | @env{CC} can interfere with the functioning of @command{make}. |
b8df899a JM |
785 | |
786 | If you encounter seemingly strange errors when trying to build the | |
787 | compiler in a directory other than the source directory, it could be | |
788 | because you have previously configured the compiler in the source | |
789 | directory. Make sure you have done all the necessary preparations. | |
790 | ||
791 | If you build GCC on a BSD system using a directory stored in an old System | |
792 | V file system, problems may occur in running @code{fixincludes} if the | |
793 | System V file system doesn't support symbolic links. These problems | |
794 | result in a failure to fix the declaration of @code{size_t} in | |
795 | @file{sys/types.h}. If you find that @code{size_t} is a signed type and | |
796 | that type mismatches occur, this could be the cause. | |
797 | ||
161d7b59 | 798 | The solution is not to use such a directory for building GCC@. |
f42974dc | 799 | |
f85b8d1a JM |
800 | When building from CVS or snapshots, or if you modify parser sources, |
801 | you need the Bison parser generator installed. Any version 1.25 or | |
802 | later should work; older versions may also work. If you do not modify | |
803 | parser sources, releases contain the Bison-generated files and you do | |
804 | not need Bison installed to build them. | |
805 | ||
806 | When building from CVS or snapshots, or if you modify Texinfo | |
807 | documentation, you need version 4.0 or later of Texinfo installed if you | |
808 | want Info documentation to be regenerated. Releases contain Info | |
809 | documentation pre-built for the unmodified documentation in the release. | |
810 | ||
f42974dc DW |
811 | @section Building a native compiler |
812 | ||
f9047ed3 | 813 | For a native build issue the command @samp{make bootstrap}. This |
f42974dc DW |
814 | will build the entire GCC system, which includes the following steps: |
815 | ||
816 | @itemize @bullet | |
817 | @item | |
818 | Build host tools necessary to build the compiler such as texinfo, bison, | |
819 | gperf. | |
820 | ||
821 | @item | |
822 | Build target tools for use by the compiler such as binutils (bfd, | |
eea81d3e RO |
823 | binutils, gas, gprof, ld, and opcodes) |
824 | if they have been individually linked | |
f42974dc DW |
825 | or moved into the top level GCC source tree before configuring. |
826 | ||
827 | @item | |
828 | Perform a 3-stage bootstrap of the compiler. | |
829 | ||
830 | @item | |
831 | Perform a comparison test of the stage2 and stage3 compilers. | |
832 | ||
833 | @item | |
834 | Build runtime libraries using the stage3 compiler from the previous step. | |
f9047ed3 | 835 | |
f42974dc DW |
836 | @end itemize |
837 | ||
38209993 LG |
838 | If you are short on disk space you might consider @samp{make |
839 | bootstrap-lean} instead. This is identical to @samp{make | |
840 | bootstrap} except that object files from the stage1 and | |
f42974dc DW |
841 | stage2 of the 3-stage bootstrap of the compiler are deleted as |
842 | soon as they are no longer needed. | |
843 | ||
844 | ||
845 | If you want to save additional space during the bootstrap and in | |
846 | the final installation as well, you can build the compiler binaries | |
38209993 LG |
847 | without debugging information with @samp{make CFLAGS='-O' LIBCFLAGS='-g |
848 | -O2' LIBCXXFLAGS='-g -O2 -fno-implicit-templates' bootstrap}. This will save | |
f42974dc DW |
849 | roughly 40% of disk space both for the bootstrap and the final installation. |
850 | (Libraries will still contain debugging information.) | |
851 | ||
eea81d3e RO |
852 | If you wish to use non-default GCC flags when compiling the stage2 and |
853 | stage3 compilers, set @code{BOOT_CFLAGS} on the command line when doing | |
f85b8d1a JM |
854 | @samp{make bootstrap}. Non-default optimization flags are less well |
855 | tested here than the default of @samp{-g -O2}, but should still work. | |
856 | In a few cases, you may find that you need to specify special flags such | |
857 | as @option{-msoft-float} here to complete the bootstrap; or, if the | |
858 | native compiler miscompiles the stage1 compiler, you may need to work | |
859 | around this, by choosing @code{BOOT_CFLAGS} to avoid the parts of the | |
860 | stage1 compiler that were miscompiled, or by using @samp{make | |
861 | bootstrap4} to increase the number of stages of bootstrap. | |
862 | ||
6cfb3f16 | 863 | If you used the flag @option{--enable-languages=@dots{}} to restrict |
f42974dc | 864 | the compilers to be built, only those you've actually enabled will be |
767094dd | 865 | built. This will of course only build those runtime libraries, for |
f42974dc | 866 | which the particular compiler has been built. Please note, |
eea81d3e | 867 | that re-defining @env{LANGUAGES} when calling @samp{make bootstrap} |
ef88b07d | 868 | @strong{does not} work anymore! |
f42974dc | 869 | |
f85b8d1a | 870 | If the comparison of stage2 and stage3 fails, this normally indicates |
eea81d3e | 871 | that the stage2 compiler has compiled GCC incorrectly, and is therefore |
f85b8d1a JM |
872 | a potentially serious bug which you should investigate and report. (On |
873 | a few systems, meaningful comparison of object files is impossible; they | |
874 | always appear ``different''. If you encounter this problem, you will | |
875 | need to disable comparison in the @file{Makefile}.) | |
f42974dc DW |
876 | |
877 | @section Building a cross compiler | |
878 | ||
879 | We recommend reading the | |
880 | @uref{http://www.objsw.com/CrossGCC/,,crossgcc FAQ} | |
881 | for information about building cross compilers. | |
882 | ||
883 | When building a cross compiler, it is not generally possible to do a | |
884 | 3-stage bootstrap of the compiler. This makes for an interesting problem | |
161d7b59 | 885 | as parts of GCC can only be built with GCC@. |
f42974dc DW |
886 | |
887 | To build a cross compiler, we first recommend building and installing a | |
888 | native compiler. You can then use the native GCC compiler to build the | |
889 | cross compiler. | |
890 | ||
891 | Assuming you have already installed a native copy of GCC and configured | |
6cfb3f16 | 892 | your cross compiler, issue the command @command{make}, which performs the |
f42974dc DW |
893 | following steps: |
894 | ||
895 | @itemize @bullet | |
896 | @item | |
897 | Build host tools necessary to build the compiler such as texinfo, bison, | |
898 | gperf. | |
899 | ||
900 | @item | |
901 | Build target tools for use by the compiler such as binutils (bfd, | |
902 | binutils, gas, gprof, ld, and opcodes) | |
903 | if they have been individually linked or moved into the top level GCC source | |
904 | tree before configuring. | |
905 | ||
906 | @item | |
907 | Build the compiler (single stage only). | |
908 | ||
909 | @item | |
910 | Build runtime libraries using the compiler from the previous step. | |
911 | @end itemize | |
912 | ||
913 | Note that if an error occurs in any step the make process will exit. | |
914 | ||
915 | @section Building in parallel | |
916 | ||
38209993 LG |
917 | If you have a multiprocessor system you can use @samp{make bootstrap |
918 | MAKE="make -j 2" -j 2} or just @samp{make -j 2 bootstrap} | |
919 | for GNU Make 3.79 and above instead of just @samp{make bootstrap} | |
161d7b59 | 920 | when building GCC@. You can use a bigger number instead of two if |
f42974dc DW |
921 | you like. In most cases, it won't help to use a number bigger than |
922 | the number of processors in your machine. | |
923 | ||
924 | @html | |
925 | <hr> | |
926 | <p> | |
927 | @end html | |
928 | @ifhtml | |
929 | @uref{./index.html,,Return to the GCC Installation page} | |
930 | @end ifhtml | |
931 | @end ifset | |
932 | ||
933 | @c ***Testing***************************************************************** | |
6cfb3f16 | 934 | @ifnothtml |
f42974dc DW |
935 | @comment node-name, next, previous, up |
936 | @node Testing, Final install, Building, Installing GCC | |
6cfb3f16 | 937 | @end ifnothtml |
f42974dc DW |
938 | @ifset testhtml |
939 | @html | |
940 | <h1 align="center">Installing GCC: Testing</h1> | |
941 | @end html | |
942 | @ifnothtml | |
943 | @chapter Installing GCC: Testing | |
944 | @end ifnothtml | |
945 | @cindex Testing | |
946 | @cindex Installing GCC: Testing | |
947 | @cindex Testsuite | |
948 | ||
767094dd | 949 | Before you install GCC, you might wish to run the testsuite. This |
f42974dc DW |
950 | step is optional and may require you to download additional software. |
951 | ||
f9047ed3 JM |
952 | First, you must have @uref{download.html,,downloaded the testsuites}. |
953 | The full distribution contains testsuites; only if you downloaded the | |
f42974dc DW |
954 | ``core'' compiler plus any front ends, you do not have the testsuites. |
955 | ||
956 | Second, you must have a @uref{http://www.gnu.org/software/dejagnu/,,current version of DejaGnu} installed; | |
957 | dejagnu 1.3 is not sufficient. | |
958 | ||
959 | Now you may need specific preparations: | |
960 | ||
961 | @itemize @bullet | |
f42974dc DW |
962 | |
963 | @item | |
ecb7d6b3 | 964 | The following environment variables may need to be set appropriately, as in |
f42974dc | 965 | the following example (which assumes that DejaGnu has been installed |
6cfb3f16 | 966 | under @file{/usr/local}): |
f42974dc DW |
967 | |
968 | @example | |
969 | TCL_LIBRARY = /usr/local/share/tcl8.0 | |
970 | DEJAGNULIBS = /usr/local/share/dejagnu | |
971 | @end example | |
972 | ||
973 | On systems such as Cygwin, these paths are required to be actual | |
974 | paths, not mounts or links; presumably this is due to some lack of | |
975 | portability in the DejaGnu code. | |
976 | ||
ecb7d6b3 JM |
977 | If the directories where @command{runtest} and @command{expect} were |
978 | installed are in the @env{PATH}, it should not be necessary to set these | |
979 | environment variables. | |
980 | ||
f42974dc DW |
981 | @end itemize |
982 | ||
983 | Finally, you can run the testsuite (which may take a long time): | |
984 | @example | |
ef88b07d | 985 | cd @var{objdir}; make -k check |
f42974dc DW |
986 | @end example |
987 | ||
988 | The testing process will try to test as many components in the GCC | |
2147b154 | 989 | distribution as possible, including the C, C++, Objective-C and Fortran |
ecb7d6b3 | 990 | compilers as well as the C++ and Java runtime libraries. |
f42974dc DW |
991 | |
992 | @section How can I run the test suite on selected tests? | |
993 | ||
994 | As a first possibility to cut down the number of tests that are run it is | |
38209993 | 995 | possible to use @samp{make check-gcc} or @samp{make check-g++} |
eea81d3e | 996 | in the @file{gcc} subdirectory of the object directory. To further cut down the |
f42974dc DW |
997 | tests the following is possible: |
998 | ||
999 | @example | |
6cfb3f16 | 1000 | make check-gcc RUNTESTFLAGS="execute.exp @var{other-options}" |
f42974dc DW |
1001 | @end example |
1002 | ||
eea81d3e | 1003 | This will run all @command{gcc} execute tests in the testsuite. |
f42974dc DW |
1004 | |
1005 | @example | |
6cfb3f16 | 1006 | make check-g++ RUNTESTFLAGS="old-deja.exp=9805* @var{other-options}" |
f42974dc DW |
1007 | @end example |
1008 | ||
eea81d3e | 1009 | This will run the @command{g++} ``old-deja'' tests in the testsuite where the filename |
6cfb3f16 | 1010 | matches @samp{9805*}. |
f42974dc | 1011 | |
6cfb3f16 JM |
1012 | The @file{*.exp} files are located in the testsuite directories of the GCC |
1013 | source, the most important ones being @file{compile.exp}, | |
1014 | @file{execute.exp}, @file{dg.exp} and @file{old-deja.exp}. | |
1015 | To get a list of the possible @file{*.exp} files, pipe the | |
38209993 | 1016 | output of @samp{make check} into a file and look at the |
6cfb3f16 | 1017 | @samp{Running @dots{} .exp} lines. |
f42974dc DW |
1018 | |
1019 | @section How to interpret test results | |
1020 | ||
6cfb3f16 | 1021 | After the testsuite has run you'll find various @file{*.sum} and @file{*.log} |
767094dd | 1022 | files in the testsuite subdirectories. The @file{*.log} files contain a |
f42974dc | 1023 | detailed log of the compiler invocations and the corresponding |
767094dd | 1024 | results, the @file{*.sum} files summarize the results. These summaries list |
f42974dc DW |
1025 | all the tests that have been run with a corresponding status code: |
1026 | ||
1027 | @itemize @bullet | |
1028 | @item | |
1029 | PASS: the test passed as expected | |
1030 | @item | |
1031 | XPASS: the test unexpectedly passed | |
1032 | @item | |
1033 | FAIL: the test unexpectedly failed | |
1034 | @item | |
1035 | XFAIL: the test failed as expected | |
1036 | @item | |
1037 | UNSUPPORTED: the test is not supported on this platform | |
1038 | @item | |
1039 | ERROR: the testsuite detected an error | |
1040 | @item | |
1041 | WARNING: the testsuite detected a possible problem | |
1042 | @end itemize | |
1043 | ||
38209993 LG |
1044 | It is normal for some tests to report unexpected failures. At the |
1045 | current time our testing harness does not allow fine grained control | |
1046 | over whether or not a test is expected to fail. We expect to fix this | |
1047 | problem in future releases. | |
f42974dc DW |
1048 | |
1049 | ||
1050 | @section Submitting test results | |
1051 | ||
1052 | If you want to report the results to the GCC project, use the | |
767094dd | 1053 | @file{contrib/test_summary} shell script. Start it in the @var{objdir} with |
f42974dc DW |
1054 | |
1055 | @example | |
6cfb3f16 JM |
1056 | @var{srcdir}/contrib/test_summary -p your_commentary.txt \ |
1057 | -m gcc-testresults@@gcc.gnu.org |sh | |
f42974dc DW |
1058 | @end example |
1059 | ||
6cfb3f16 | 1060 | This script uses the @command{Mail} program to send the results, so |
767094dd | 1061 | make sure it is in your @env{PATH}. The file @file{your_commentary.txt} is |
f42974dc | 1062 | prepended to the testsuite summary and should contain any special |
767094dd | 1063 | remarks you have on your results or your build environment. Please |
f42974dc | 1064 | do not edit the testsuite result block or the subject line, as these |
f9047ed3 | 1065 | messages are automatically parsed and presented at the |
f42974dc DW |
1066 | @uref{http://gcc.gnu.org/testresults/,,GCC testresults} web |
1067 | page. Here you can also gather information on how specific tests | |
767094dd | 1068 | behave on different platforms and compare them with your results. A |
f42974dc DW |
1069 | few failing testcases are possible even on released versions and you |
1070 | should look here first if you think your results are unreasonable. | |
1071 | ||
1072 | @end ifset | |
1073 | ||
1074 | @c ***Final install*********************************************************** | |
6cfb3f16 | 1075 | @ifnothtml |
f42974dc DW |
1076 | @comment node-name, next, previous, up |
1077 | @node Final install, , Testing, Installing GCC | |
6cfb3f16 | 1078 | @end ifnothtml |
f42974dc DW |
1079 | @ifset finalinstallhtml |
1080 | @html | |
1081 | <h1 align="center">Installing GCC: Final installation</h1> | |
1082 | @end html | |
1083 | @ifnothtml | |
1084 | @chapter Installing GCC: Final installation | |
1085 | @end ifnothtml | |
1086 | ||
eea81d3e RO |
1087 | Now that GCC has been built (and optionally tested), you can install it with |
1088 | @example | |
1089 | cd @var{objdir}; make install | |
1090 | @end example | |
f42974dc DW |
1091 | |
1092 | That step completes the installation of GCC; user level binaries can | |
38209993 LG |
1093 | be found in @file{@var{prefix}/bin} where @var{prefix} is the value you |
1094 | specified with the @option{--prefix} to configure (or @file{/usr/local} | |
ab130aa5 JM |
1095 | by default). (If you specified @option{--bindir}, that directory will |
1096 | be used instead; otherwise, if you specified @option{--exec-prefix}, | |
1097 | @file{@var{exec-prefix}/bin} will be used.) Headers for the C++ and | |
1098 | Java libraries are installed in @file{@var{prefix}/include}; libraries | |
1099 | in @file{@var{libdir}} (normally @file{@var{prefix}/lib}); internal | |
1100 | parts of the compiler in @file{@var{libdir}/gcc-lib}; documentation in | |
1101 | info format in @file{@var{infodir}} (normally @file{@var{prefix}/info}). | |
f42974dc | 1102 | |
c009f01f JJ |
1103 | If you built a released version of GCC then if you don't mind, please |
1104 | quickly review the build status page for | |
1105 | @uref{http://gcc.gnu.org/gcc-3.0/buildstat.html,,3.0} or | |
1106 | @uref{http://gcc.gnu.org/gcc-2.95/buildstat.html,,2.95}. | |
f42974dc | 1107 | If your system is not listed, send a note to |
eea81d3e RO |
1108 | @email{gcc@@gcc.gnu.org} indicating |
1109 | that you successfully built and installed GCC. | |
f42974dc | 1110 | |
c474f76b | 1111 | Include the output from running @file{@var{srcdir}/config.guess}. (Do |
eea81d3e | 1112 | not send us the @file{config.guess} file itself, just the one-line output from |
c009f01f JJ |
1113 | running it!) Also specify which version you built. |
1114 | ||
1115 | We'd also like to know if the | |
1116 | @ifnothtml | |
1117 | @ref{Specific, host/target specific installation notes} | |
1118 | @end ifnothtml | |
1119 | @ifhtml | |
1120 | @uref{specific.html,,host/target specific installation notes} | |
1121 | @end ifhtml | |
1122 | didn't include your host/target information or if that information is | |
1123 | incomplete or out of date. Send a note to | |
1124 | @email{gcc@@gcc.gnu.org} telling us how the information should be changed. | |
f42974dc DW |
1125 | |
1126 | If you find a bug, please report it following our | |
1127 | @uref{../bugs.html,,bug reporting guidelines}. | |
1128 | ||
ab130aa5 JM |
1129 | If you want to print the GCC manuals, do @samp{cd @var{objdir}; make |
1130 | dvi}. You will need to have @command{texi2dvi} (version at least 4.0) | |
1131 | and @TeX{} installed. This creates a number of @file{.dvi} files in | |
1132 | subdirectories of @file{@var{objdir}}; these may be converted for | |
1133 | printing with programs such as @command{dvips}. You can also | |
1134 | @uref{http://www.gnu.org/order/order.html,,buy printed manuals from the | |
1135 | Free Software Foundation}, though such manuals may not be for the most | |
161d7b59 | 1136 | recent version of GCC@. |
ab130aa5 | 1137 | |
f42974dc DW |
1138 | @html |
1139 | <hr> | |
1140 | <p> | |
1141 | @end html | |
1142 | @ifhtml | |
1143 | @uref{./index.html,,Return to the GCC Installation page} | |
1144 | @end ifhtml | |
1145 | @end ifset | |
1146 | ||
1147 | @c ***Binaries**************************************************************** | |
6cfb3f16 | 1148 | @ifnothtml |
f42974dc DW |
1149 | @comment node-name, next, previous, up |
1150 | @node Binaries, Specific, Installing GCC, Top | |
6cfb3f16 | 1151 | @end ifnothtml |
f42974dc DW |
1152 | @ifset binarieshtml |
1153 | @html | |
1154 | <h1 align="center">Installing GCC: Binaries</h1> | |
1155 | @end html | |
1156 | @ifnothtml | |
1157 | @chapter Installing GCC: Binaries | |
1158 | @end ifnothtml | |
1159 | @cindex Binaries | |
1160 | @cindex Installing GCC: Binaries | |
1161 | ||
161d7b59 | 1162 | We are often asked about pre-compiled versions of GCC@. While we cannot |
f42974dc DW |
1163 | provide these for all platforms, below you'll find links to binaries for |
1164 | various platforms where creating them by yourself is not easy due to various | |
1165 | reasons. | |
1166 | ||
1167 | Please note that we did not create these binaries, nor do we | |
1168 | support them. If you have any problems installing them, please | |
1169 | contact their makers. | |
1170 | ||
1171 | @itemize | |
1172 | @item | |
df002c7d DE |
1173 | AIX: |
1174 | @itemize | |
1175 | @item | |
4b5eb038 | 1176 | @uref{http://freeware.bull.net,,Bull's Freeware and Shareware Archive for AIX}; |
df002c7d DE |
1177 | |
1178 | @item | |
9da6e781 | 1179 | @uref{http://aixpdslib.seas.ucla.edu,,UCLA Software Library for AIX}; |
df002c7d | 1180 | @end itemize |
f42974dc DW |
1181 | |
1182 | @item | |
6cfb3f16 | 1183 | DOS---@uref{http://www.delorie.com/djgpp/,,DJGPP}; |
f42974dc DW |
1184 | |
1185 | @item | |
1186 | @uref{http://hpux.cae.wisc.edu/,,HP-UX Porting Center}; | |
1187 | ||
1188 | @item | |
38209993 LG |
1189 | @uref{http://www.sco.com/skunkware/devtools/index.html#gcc,,SCO |
1190 | OpenServer/Unixware}; | |
f42974dc DW |
1191 | |
1192 | @item | |
6cfb3f16 | 1193 | Solaris (SPARC, Intel)---@uref{http://www.sunfreeware.com/,,Sunfreeware}; |
f42974dc DW |
1194 | |
1195 | @item | |
6cfb3f16 | 1196 | SGI---@uref{http://freeware.sgi.com/,,SGI Freeware}; |
f42974dc DW |
1197 | |
1198 | @item | |
1199 | Windows 95, 98, and NT: | |
1200 | @itemize | |
1201 | @item | |
1202 | The @uref{http://sources.redhat.com/cygwin/,,Cygwin} project; | |
1203 | @item | |
1204 | @uref{http://www.xraylith.wisc.edu/~khan/software/gnu-win32/,,GNU Win32} | |
1205 | related projects by Mumit Khan. | |
1206 | @end itemize | |
1207 | ||
1208 | @item | |
1209 | @uref{ftp://ftp.thewrittenword.com/packages/free/by-name/gcc-2.95.2/,,The | |
1210 | Written Word} offers binaries for Solaris 2.5.1, 2.6, 2.7/SPARC, 2.7/Intel, | |
1211 | IRIX 6.2, 6.5, Digital UNIX 4.0D, HP-UX 10.20, and HP-UX 11.00. | |
1212 | ||
1213 | @item | |
6cfb3f16 JM |
1214 | Hitachi H8/300[HS]---@uref{http://h8300-hms.sourceforge.net/,,GNU |
1215 | Development Tools for the Hitachi H8/300[HS] Series} | |
f42974dc DW |
1216 | |
1217 | @end itemize | |
1218 | ||
1219 | In addition to those specific offerings, you can get a binary | |
1220 | distribution CD-ROM from the | |
f9047ed3 | 1221 | @uref{http://www.fsf.org/order/order.html,,Free Software Foundation}. |
f42974dc | 1222 | It contains binaries for a number of platforms, and |
767094dd | 1223 | includes not only GCC, but other stuff as well. The current CD does |
f42974dc | 1224 | not contain the latest version of GCC, but it should allow |
767094dd | 1225 | bootstrapping the compiler. An updated version of that disk is in the |
f42974dc DW |
1226 | works. |
1227 | ||
1228 | @html | |
1229 | <hr> | |
1230 | <p> | |
1231 | @end html | |
1232 | @ifhtml | |
1233 | @uref{./index.html,,Return to the GCC Installation page} | |
1234 | @end ifhtml | |
1235 | @end ifset | |
1236 | ||
1237 | @c ***Specific**************************************************************** | |
6cfb3f16 | 1238 | @ifnothtml |
f42974dc DW |
1239 | @comment node-name, next, previous, up |
1240 | @node Specific, Concept Index, Binaries, Top | |
6cfb3f16 | 1241 | @end ifnothtml |
f42974dc DW |
1242 | @ifset specifichtml |
1243 | @html | |
1244 | <h1 align="center">Host/target specific installation notes for GCC</h1> | |
1245 | @end html | |
1246 | @ifnothtml | |
1247 | @chapter Host/target specific installation notes for GCC | |
1248 | @end ifnothtml | |
1249 | @cindex Specific | |
1250 | @cindex Specific installation notes | |
1251 | @cindex Target specific installation | |
1252 | @cindex Host specific installation | |
1253 | @cindex Target specific installation notes | |
1254 | ||
1255 | Please read this document carefully @emph{before} installing the | |
1256 | GNU Compiler Collection on your machine. | |
1257 | ||
c009f01f JJ |
1258 | Lists of successful builds for released versions of GCC are |
1259 | available at our web pages for | |
1260 | @uref{http://gcc.gnu.org/gcc-3.0/buildstat.html,,3.0} | |
1261 | and | |
1262 | @uref{http://gcc.gnu.org/gcc-2.95/buildstat.html,,2.95}. | |
1263 | These lists are updated as new information becomes available. | |
1264 | ||
ef88b07d | 1265 | @ifhtml |
f42974dc DW |
1266 | @itemize |
1267 | @item | |
b8df899a JM |
1268 | @uref{#1750a-*-*,,1750a-*-*} |
1269 | @item | |
1270 | @uref{#a29k,,a29k} | |
1271 | @item | |
1272 | @uref{#a29k-*-bsd,,a29k-*-bsd} | |
1273 | @item | |
333e14b0 | 1274 | @uref{#alpha*-*-*,,alpha*-*-*} |
f42974dc DW |
1275 | @item |
1276 | @uref{#alpha*-dec-osf*,,alpha*-dec-osf*} | |
1277 | @item | |
71b96724 RL |
1278 | @uref{#alphaev5-cray-unicosmk*,,alphaev5-cray-unicosmk*} |
1279 | @item | |
b8df899a JM |
1280 | @uref{#arc-*-elf,,arc-*-elf} |
1281 | @item | |
1282 | @uref{#arm-*-aout,,arm-*-aout} | |
1283 | @item | |
1284 | @uref{#arm-*-elf,,arm-*-elf} | |
1285 | @item | |
476c334e PB |
1286 | @uref{#arm*-*-linux-gnu,,arm*-*-linux-gnu} |
1287 | @item | |
b8df899a JM |
1288 | @uref{#arm-*-riscix,,arm-*-riscix} |
1289 | @item | |
f42974dc DW |
1290 | @uref{#avr,,avr} |
1291 | @item | |
0132e321 MH |
1292 | @uref{#c4x,,c4x} |
1293 | @item | |
f42974dc DW |
1294 | @uref{#dos,,DOS} |
1295 | @item | |
b8df899a JM |
1296 | @uref{#dsp16xx,,dsp16xx} |
1297 | @item | |
1298 | @uref{#elxsi-elxsi-bsd,,elxsi-elxsi-bsd} | |
1299 | @item | |
021c4bfd RO |
1300 | @uref{#*-*-freebsd*,,*-*-freebsd*} |
1301 | @item | |
f42974dc DW |
1302 | @uref{#h8300-hms,,h8300-hms} |
1303 | @item | |
1304 | @uref{#hppa*-hp-hpux*,,hppa*-hp-hpux*} | |
1305 | @item | |
1306 | @uref{#hppa*-hp-hpux9,,hppa*-hp-hpux9} | |
1307 | @item | |
1308 | @uref{#hppa*-hp-hpux10,,hppa*-hp-hpux10} | |
1309 | @item | |
1310 | @uref{#hppa*-hp-hpux11,,hppa*-hp-hpux11} | |
1311 | @item | |
b8df899a JM |
1312 | @uref{#i370-*-*,,i370-*-*} |
1313 | @item | |
f42974dc DW |
1314 | @uref{#*-*-linux-gnu,,*-*-linux-gnu} |
1315 | @item | |
b8df899a JM |
1316 | @uref{#ix86-*-linux*oldld,,i?86-*-linux*oldld} |
1317 | @item | |
1318 | @uref{#ix86-*-linux*aout,,i?86-*-linux*aout} | |
1319 | @item | |
f42974dc DW |
1320 | @uref{#ix86-*-linux*,,i?86-*-linux*} |
1321 | @item | |
b8df899a JM |
1322 | @uref{#ix86-*-sco,,i?86-*-sco} |
1323 | @item | |
1324 | @uref{#ix86-*-sco3.2v4,,i?86-*-sco3.2v4} | |
1325 | @item | |
f42974dc DW |
1326 | @uref{#ix86-*-sco3.2v5*,,i?86-*-sco3.2v5*} |
1327 | @item | |
f42974dc DW |
1328 | @uref{#ix86-*-udk,,i?86-*-udk} |
1329 | @item | |
b8df899a JM |
1330 | @uref{#ix86-*-isc,,i?86-*-isc} |
1331 | @item | |
1332 | @uref{#ix86-*-esix,,i?86-*-esix} | |
1333 | @item | |
1334 | @uref{#ix86-ibm-aix,,i?86-ibm-aix} | |
1335 | @item | |
1336 | @uref{#ix86-sequent-bsd,,i?86-sequent-bsd} | |
1337 | @item | |
1338 | @uref{#ix86-sequent-ptx1*,,i?86-sequent-ptx1*, i?86-sequent-ptx2*} | |
1339 | @item | |
1340 | @uref{#ix86-*-sysv3*,,i?86-*-sysv3*} | |
1341 | @item | |
1342 | @uref{#i860-intel-osf*,,i860-intel-osf*} | |
1343 | @item | |
1344 | @uref{#*-lynx-lynxos,,*-lynx-lynxos} | |
1345 | @item | |
f42974dc DW |
1346 | @uref{#*-ibm-aix*,,*-ibm-aix*} |
1347 | @item | |
b8df899a JM |
1348 | @uref{#m32r-*-elf,,m32r-*-elf} |
1349 | @item | |
1350 | @uref{#m68000-hp-bsd,,m68000-hp-bsd} | |
1351 | @item | |
1352 | @uref{#m6811-elf,,m6811-elf} | |
1353 | @item | |
1354 | @uref{#m6812-elf,,m6812-elf} | |
1355 | @item | |
1356 | @uref{#m68k-altos,,m68k-altos} | |
1357 | @item | |
1358 | @uref{#m68k-apple-aux,,m68k-apple-aux} | |
1359 | @item | |
1360 | @uref{#m68k-att-sysv,,m68k-att-sysv} | |
1361 | @item | |
1362 | @uref{#m68k-bull-sysv,,m68k-bull-sysv} | |
1363 | @item | |
1364 | @uref{#m68k-crds-unox,,m68k-crds-unox} | |
1365 | @item | |
1366 | @uref{#m68k-hp-hpux,,m68k-hp-hpux} | |
1367 | @item | |
f42974dc DW |
1368 | @uref{#m68k-*-nextstep*,,m68k-*-nextstep*} |
1369 | @item | |
b8df899a JM |
1370 | @uref{#m68k-ncr-*,,m68k-ncr-*} |
1371 | @item | |
1372 | @uref{#m68k-sun,,m68k-sun} | |
1373 | @item | |
f42974dc DW |
1374 | @uref{#m68k-sun-sunos4.1.1,,m68k-sun-sunos4.1.1} |
1375 | @item | |
b8df899a JM |
1376 | @uref{#m88k-*-svr3,,m88k-*-svr3} |
1377 | @item | |
1378 | @uref{#m88k-*-dgux,,m88k-*-dgux} | |
1379 | @item | |
1380 | @uref{#m88k-tektronix-sysv3,,m88k-tektronix-sysv3} | |
1381 | @item | |
1382 | @uref{#mips-*-*,,mips-*-*} | |
1383 | @item | |
021c4bfd RO |
1384 | @uref{#mips-dec-*,,mips-dec-*} |
1385 | @item | |
b8df899a JM |
1386 | @uref{#mips-mips-bsd,,mips-mips-bsd} |
1387 | @item | |
1388 | @uref{#mips-mips-riscos*,,mips-mips-riscos*} | |
1389 | @item | |
b953cc4b | 1390 | @uref{#mips-sgi-irix4,,mips-sgi-irix4} |
213ba345 | 1391 | @item |
b953cc4b | 1392 | @uref{#mips-sgi-irix5,,mips-sgi-irix5} |
f42974dc | 1393 | @item |
b953cc4b | 1394 | @uref{#mips-sgi-irix6,,mips-sgi-irix6} |
f42974dc | 1395 | @item |
b8df899a JM |
1396 | @uref{#mips-sony-sysv,,mips-sony-sysv} |
1397 | @item | |
1398 | @uref{#ns32k-encore,,ns32k-encore} | |
1399 | @item | |
1400 | @uref{#ns32k-*-genix,,ns32k-*-genix} | |
1401 | @item | |
1402 | @uref{#ns32k-sequent,,ns32k-sequent} | |
1403 | @item | |
1404 | @uref{#ns32k-utek,,ns32k-utek} | |
1405 | @item | |
021c4bfd RO |
1406 | @uref{#powerpc*-*-*,,powerpc*-*-*, powerpc-*-sysv4} |
1407 | @item | |
4f2b1139 SS |
1408 | @uref{#powerpc-*-darwin*,,powerpc-*-darwin*} |
1409 | @item | |
b8df899a JM |
1410 | @uref{#powerpc-*-elf,,powerpc-*-elf, powerpc-*-sysv4} |
1411 | @item | |
f42974dc DW |
1412 | @uref{#powerpc-*-linux-gnu*,,powerpc-*-linux-gnu*} |
1413 | @item | |
edf1b3f3 AC |
1414 | @uref{#powerpc-*-netbsd*,,powerpc-*-netbsd*} |
1415 | @item | |
b8df899a JM |
1416 | @uref{#powerpc-*-eabiaix,,powerpc-*-eabiaix} |
1417 | @item | |
1418 | @uref{#powerpc-*-eabisim,,powerpc-*-eabisim} | |
1419 | @item | |
1420 | @uref{#powerpc-*-eabi,,powerpc-*-eabi} | |
1421 | @item | |
1422 | @uref{#powerpcle-*-elf,,powerpcle-*-elf, powerpcle-*-sysv4} | |
1423 | @item | |
1424 | @uref{#powerpcle-*-eabisim,,powerpcle-*-eabisim} | |
1425 | @item | |
1426 | @uref{#powerpcle-*-eabi,,powerpcle-*-eabi} | |
1427 | @item | |
1428 | @uref{#powerpcle-*-winnt,,powerpcle-*-winnt, powerpcle-*-pe} | |
1429 | @item | |
1430 | @uref{#romp-*-aos,,romp-*-aos, romp-*-mach} | |
1431 | @item | |
91abf72d HP |
1432 | @uref{#s390-*-linux*} |
1433 | @item | |
1434 | @uref{#s390x-*-linux*} | |
1435 | @item | |
f42974dc DW |
1436 | @uref{#*-*-solaris*,,*-*-solaris*} |
1437 | @item | |
1438 | @uref{#sparc-sun-solaris*,,sparc-sun-solaris*} | |
1439 | @item | |
1440 | @uref{#sparc-sun-solaris2.7,,sparc-sun-solaris2.7} | |
1441 | @item | |
1442 | @uref{#*-sun-solaris2.8,,*-sun-solaris2.8} | |
1443 | @item | |
f42974dc DW |
1444 | @uref{#sparc-sun-sunos*,,sparc-sun-sunos*} |
1445 | @item | |
1446 | @uref{#sparc-unknown-linux-gnulibc1,,sparc-unknown-linux-gnulibc1} | |
1447 | @item | |
1448 | @uref{#sparc64-*-*,,sparc64-*-*} | |
1449 | @item | |
b8df899a JM |
1450 | @uref{#*-*-sysv*,,*-*-sysv*} |
1451 | @item | |
1452 | @uref{#vax-dec-ultrix,,vax-dec-ultrix} | |
1453 | @item | |
1454 | @uref{#we32k-*-*,,we32k-*-*} | |
1455 | @item | |
f42974dc DW |
1456 | @uref{#windows,,Microsoft Windows} |
1457 | @item | |
1458 | @uref{#os2,,OS/2} | |
1459 | @item | |
1460 | @uref{#older,,Older systems} | |
1461 | @end itemize | |
1462 | ||
1463 | @itemize | |
1464 | @item | |
1465 | @uref{#elf_targets,,all ELF targets} (SVR4, Solaris, etc.) | |
1466 | @end itemize | |
ef88b07d | 1467 | @end ifhtml |
f42974dc DW |
1468 | |
1469 | ||
1470 | @html | |
1471 | <!-- -------- host/target specific issues start here ---------------- --> | |
1472 | <hr> | |
f42974dc | 1473 | @end html |
b8df899a JM |
1474 | @heading @anchor{1750a-*-*}1750a-*-* |
1475 | MIL-STD-1750A processors. | |
1476 | ||
1477 | The MIL-STD-1750A cross configuration produces output for | |
021c4bfd | 1478 | @code{as1750}, an assembler/linker available under the GNU General Public |
161d7b59 | 1479 | License for the 1750A@. @code{as1750} can be obtained at |
b8df899a JM |
1480 | @uref{ftp://ftp.fta-berlin.de/pub/crossgcc/1750gals/}. |
1481 | A similarly licensed simulator for | |
1482 | the 1750A is available from same address. | |
1483 | ||
021c4bfd RO |
1484 | You should ignore a fatal error during the building of @samp{libgcc} |
1485 | (@samp{libgcc} is not yet implemented for the 1750A@.) | |
b8df899a JM |
1486 | |
1487 | The @code{as1750} assembler requires the file @file{ms1750.inc}, which is | |
021c4bfd | 1488 | found in the directory @file{gcc/config/1750a}. |
b8df899a | 1489 | |
f0523f02 | 1490 | GCC produced the same sections as the Fairchild F9450 C Compiler, |
b8df899a JM |
1491 | namely: |
1492 | ||
1493 | @table @code | |
1494 | @item Normal | |
1495 | The program code section. | |
1496 | ||
1497 | @item Static | |
1498 | The read/write (RAM) data section. | |
1499 | ||
1500 | @item Konst | |
1501 | The read-only (ROM) constants section. | |
1502 | ||
1503 | @item Init | |
161d7b59 | 1504 | Initialization section (code to copy KREL to SREL)@. |
b8df899a JM |
1505 | @end table |
1506 | ||
021c4bfd | 1507 | The smallest addressable unit is 16 bits (@code{BITS_PER_UNIT} is 16). This |
6cfb3f16 JM |
1508 | means that type @code{char} is represented with a 16-bit word per character. |
1509 | The 1750A's ``Load/Store Upper/Lower Byte'' instructions are not used by | |
161d7b59 | 1510 | GCC@. |
b8df899a JM |
1511 | |
1512 | @html | |
1513 | </p> | |
1514 | <hr> | |
1515 | @end html | |
1516 | @heading @anchor{a29k}a29k | |
1517 | AMD Am29k-family processors. These are normally used in embedded | |
1518 | applications. There are no standard Unix configurations. | |
1519 | This configuration | |
1520 | corresponds to AMD's standard calling sequence and binary interface | |
1521 | and is compatible with other 29k tools. | |
1522 | ||
1523 | You may need to make a variant of the file @file{a29k.h} for your | |
1524 | particular configuration. | |
1525 | ||
1526 | @html | |
1527 | </p> | |
1528 | <hr> | |
1529 | @end html | |
1530 | @heading @anchor{a29k-*-bsd}a29k-*-bsd | |
1531 | AMD Am29050 used in a system running a variant of BSD Unix. | |
1532 | ||
1533 | @html | |
1534 | </p> | |
1535 | <hr> | |
1536 | @end html | |
333e14b0 LR |
1537 | @heading @anchor{alpha*-*-*}alpha*-*-* |
1538 | ||
1539 | This section contains general configuration information for all | |
1540 | alpha-based platforms using ELF (in particular, ignore this section for | |
161d7b59 | 1541 | DEC OSF/1, Digital UNIX and Tru64 UNIX)@. In addition to reading this |
f2541106 | 1542 | section, please read all other sections that match your target. |
333e14b0 | 1543 | |
021c4bfd RO |
1544 | We require binutils 2.11.2 or newer. |
1545 | Previous binutils releases had a number of problems with DWARF 2 | |
333e14b0 LR |
1546 | debugging information, not the least of which is incorrect linking of |
1547 | shared libraries. | |
1548 | ||
b8df899a JM |
1549 | @html |
1550 | </p> | |
1551 | <hr> | |
1552 | @end html | |
f2541106 | 1553 | @heading @anchor{alpha*-dec-osf*}alpha*-dec-osf* |
b8df899a | 1554 | Systems using processors that implement the DEC Alpha architecture and |
f2541106 RO |
1555 | are running the DEC/Compaq Unix (DEC OSF/1, Digital UNIX, or Compaq |
1556 | Tru64 UNIX) operating system, for example the DEC Alpha AXP systems. | |
1557 | ||
1558 | In Tru64 UNIX V5.1, Compaq introduced a new assembler that does not | |
1559 | currently (2001-06-13) work with @command{mips-tfile}. As a workaround, | |
1560 | we need to use the old assembler, invoked via the barely documented | |
1561 | @option{-oldas} option. To bootstrap GCC, you either need to use the | |
1562 | Compaq C Compiler: | |
1563 | ||
1564 | @example | |
eea81d3e | 1565 | % CC=cc @var{srcdir}/configure [@var{options}] [@var{target}] |
f2541106 RO |
1566 | @end example |
1567 | ||
1568 | or you can use a copy of GCC 2.95.3 or higher built on Tru64 UNIX V4.0: | |
1569 | ||
1570 | @example | |
eea81d3e | 1571 | % CC=gcc -Wa,-oldas @var{srcdir}/configure [@var{options}] [@var{target}] |
f2541106 | 1572 | @end example |
b8df899a | 1573 | |
b953cc4b RO |
1574 | As of GNU binutils 2.11.2, neither GNU @command{as} nor GNU @command{ld} |
1575 | are supported on Tru64 UNIX, so you must not configure GCC with | |
1576 | @option{--with-gnu-as} or @option{--with-gnu-ld}. | |
1577 | ||
1578 | The @option{--enable-threads} options isn't supported yet. A patch is | |
1579 | in preparation for a future release. The Java runtime library has been | |
1580 | reported to work on Tru64 UNIX V4.0F, V5.0, and V5.1, so you may try | |
1581 | @option{--enable-libgcj} and report your results. | |
1582 | ||
f0523f02 | 1583 | GCC writes a @samp{.verstamp} directive to the assembler output file |
b8df899a JM |
1584 | unless it is built as a cross-compiler. It gets the version to use from |
1585 | the system header file @file{/usr/include/stamp.h}. If you install a | |
1586 | new version of DEC Unix, you should rebuild GCC to pick up the new version | |
1587 | stamp. | |
1588 | ||
1589 | Note that since the Alpha is a 64-bit architecture, cross-compilers from | |
1590 | 32-bit machines will not generate code as efficient as that generated | |
1591 | when the compiler is running on a 64-bit machine because many | |
1592 | optimizations that depend on being able to represent a word on the | |
1593 | target in an integral value on the host cannot be performed. Building | |
1594 | cross-compilers on the Alpha for 32-bit machines has only been tested in | |
1595 | a few cases and may not work properly. | |
1596 | ||
1597 | @code{make compare} may fail on old versions of DEC Unix unless you add | |
6cfb3f16 | 1598 | @option{-save-temps} to @code{CFLAGS}. On these systems, the name of the |
b8df899a JM |
1599 | assembler input file is stored in the object file, and that makes |
1600 | comparison fail if it differs between the @code{stage1} and | |
6cfb3f16 | 1601 | @code{stage2} compilations. The option @option{-save-temps} forces a |
b8df899a | 1602 | fixed name to be used for the assembler input file, instead of a |
6cfb3f16 | 1603 | randomly chosen name in @file{/tmp}. Do not add @option{-save-temps} |
b8df899a | 1604 | unless the comparisons fail without that option. If you add |
6cfb3f16 | 1605 | @option{-save-temps}, you will have to manually delete the @samp{.i} and |
b8df899a JM |
1606 | @samp{.s} files after each series of compilations. |
1607 | ||
f0523f02 | 1608 | GCC now supports both the native (ECOFF) debugging format used by DBX |
161d7b59 | 1609 | and GDB and an encapsulated STABS format for use only with GDB@. See the |
6cfb3f16 | 1610 | discussion of the @option{--with-stabs} option of @file{configure} above |
b8df899a JM |
1611 | for more information on these formats and how to select them. |
1612 | ||
1613 | There is a bug in DEC's assembler that produces incorrect line numbers | |
1614 | for ECOFF format when the @samp{.align} directive is used. To work | |
f0523f02 | 1615 | around this problem, GCC will not emit such alignment directives |
b8df899a JM |
1616 | while writing ECOFF format debugging information even if optimization is |
1617 | being performed. Unfortunately, this has the very undesirable | |
6cfb3f16 JM |
1618 | side-effect that code addresses when @option{-O} is specified are |
1619 | different depending on whether or not @option{-g} is also specified. | |
b8df899a | 1620 | |
6cfb3f16 | 1621 | To avoid this behavior, specify @option{-gstabs+} and use GDB instead of |
161d7b59 | 1622 | DBX@. DEC is now aware of this problem with the assembler and hopes to |
b8df899a JM |
1623 | provide a fix shortly. |
1624 | ||
71b96724 RL |
1625 | @html |
1626 | </p> | |
1627 | <hr> | |
1628 | @end html | |
1629 | @heading @anchor{alphaev5-cray-unicosmk*}alphaev5-cray-unicosmk* | |
1630 | Cray T3E systems running Unicos/Mk. | |
1631 | ||
1632 | This port is incomplete and has many known bugs. We hope to improve the | |
1633 | support for this target soon. Currently, only the C front end is supported, | |
1634 | and it is not possible to build parallel applications. Cray modules are not | |
1635 | supported; in particular, Craylibs are assumed to be in | |
1636 | @file{/opt/ctl/craylibs/craylibs}. | |
1637 | ||
1638 | You absolutely @strong{must} use GNU make on this platform. Also, you | |
1639 | need to tell GCC where to find the assembler and the linker. The | |
1640 | simplest way to do so is by providing @option{--with-as} and | |
1641 | @option{--with-ld} to @file{configure}, e.g.@: | |
1642 | ||
1643 | @samp{configure --with-as=/opt/ctl/bin/cam --with-ld=/opt/ctl/bin/cam | |
1644 | --enable-languages=c} | |
1645 | ||
1646 | The comparison test during @samp{make bootstrap} fails on Unicos/Mk | |
1647 | because the assembler inserts timestamps into object files. You should | |
1648 | be able to work around this by doing @samp{make all} after getting this | |
1649 | failure. | |
1650 | ||
b8df899a JM |
1651 | @html |
1652 | </p> | |
1653 | <hr> | |
1654 | @end html | |
1655 | @heading @anchor{arc-*-elf}arc-*-elf | |
1656 | Argonaut ARC processor. | |
1657 | This configuration is intended for embedded systems. | |
1658 | ||
1659 | @html | |
1660 | </p> | |
1661 | <hr> | |
1662 | @end html | |
1663 | @heading @anchor{arm-*-aout}arm-*-aout | |
1664 | Advanced RISC Machines ARM-family processors. These are often used in | |
1665 | embedded applications. There are no standard Unix configurations. | |
1666 | This configuration corresponds to the basic instruction sequences and will | |
1667 | produce @file{a.out} format object modules. | |
1668 | ||
1669 | You may need to make a variant of the file @file{arm.h} for your particular | |
1670 | configuration. | |
1671 | ||
1672 | @html | |
1673 | </p> | |
1674 | <hr> | |
1675 | @end html | |
1676 | @heading @anchor{arm-*-elf}arm-*-elf | |
1677 | This configuration is intended for embedded systems. | |
1678 | ||
476c334e PB |
1679 | @html |
1680 | </p> | |
1681 | <hr> | |
476c334e | 1682 | @end html |
ef88b07d | 1683 | @heading @anchor{arm*-*-linux-gnu}arm*-*-linux-gnu |
476c334e PB |
1684 | |
1685 | We require GNU binutils 2.10 or newer. | |
1686 | ||
b8df899a JM |
1687 | @html |
1688 | </p> | |
1689 | <hr> | |
1690 | @end html | |
1691 | @heading @anchor{arm-*-riscix}arm-*-riscix | |
1692 | The ARM2 or ARM3 processor running RISC iX, Acorn's port of BSD Unix. | |
1693 | If you are running a version of RISC iX prior to 1.2 then you must | |
1694 | specify the version number during configuration. Note that the | |
1695 | assembler shipped with RISC iX does not support stabs debugging | |
1696 | information; a new version of the assembler, with stabs support | |
1697 | included, is now available from Acorn and via ftp | |
1698 | @uref{ftp://ftp.acorn.com/pub/riscix/as+xterm.tar.Z}. To enable stabs | |
6cfb3f16 | 1699 | debugging, pass @option{--with-gnu-as} to configure. |
b8df899a | 1700 | |
6cfb3f16 | 1701 | You will need to install GNU @command{sed} before you can run configure. |
b8df899a | 1702 | |
f42974dc DW |
1703 | @html |
1704 | </p> | |
1705 | <hr> | |
f42974dc | 1706 | @end html |
ef88b07d | 1707 | @heading @anchor{avr}avr |
f42974dc | 1708 | |
b8df899a | 1709 | ATMEL AVR-family micro controllers. These are used in embedded |
ca52d046 GP |
1710 | applications. There are no standard Unix configurations. |
1711 | @ifnothtml | |
1712 | @xref{AVR Options,, AVR Options, gcc, Using and Porting the GNU Compiler | |
1713 | Collection (GCC)}, | |
1714 | @end ifnothtml | |
98999d8b | 1715 | @ifhtml |
ca52d046 | 1716 | See ``AVR Options'' in the main manual |
98999d8b | 1717 | @end ifhtml |
ca52d046 | 1718 | for the list of supported MCU types. |
b8df899a | 1719 | |
161d7b59 | 1720 | Use @samp{configure --target=avr --enable-languages="c"} to configure GCC@. |
f42974dc DW |
1721 | |
1722 | Further installation notes and other useful information about AVR tools | |
1723 | can also be obtained from: | |
1724 | ||
1725 | @itemize @bullet | |
1726 | @item | |
1727 | @uref{http://home.overta.ru/users/denisc,,http://home.overta.ru/users/denisc} | |
1728 | @item | |
1729 | @uref{http://www.itnet.pl/amelektr/avr,,http://www.itnet.pl/amelektr/avr} | |
1730 | @end itemize | |
1731 | ||
20293b4c | 1732 | We @emph{strongly} recommend using binutils 2.11 or newer. |
f42974dc DW |
1733 | |
1734 | The following error: | |
1735 | @example | |
1736 | Error: register required | |
1737 | @end example | |
1738 | ||
1739 | indicates that you should upgrade to a newer version of the binutils. | |
1740 | ||
0132e321 MH |
1741 | @html |
1742 | </p> | |
1743 | <hr> | |
1744 | @end html | |
1745 | @heading @anchor{c4x}c4x | |
1746 | ||
1747 | Texas Instruments TMS320C3x and TMS320C4x Floating Point Digital Signal | |
1748 | Processors. These are used in embedded applications. There are no | |
d8393f64 GP |
1749 | standard Unix configurations. |
1750 | @ifnothtml | |
1751 | @xref{TMS320C3x/C4x Options,, TMS320C3x/C4x Options, gcc, Using and | |
1752 | Porting the GNU Compiler Collection (GCC)}, | |
1753 | @end ifnothtml | |
98999d8b | 1754 | @ifhtml |
d8393f64 | 1755 | See ``TMS320C3x/C4x Options'' in the main manual |
98999d8b | 1756 | @end ifhtml |
d8393f64 | 1757 | for the list of supported MCU types. |
0132e321 MH |
1758 | |
1759 | GCC can be configured as a cross compiler for both the C3x and C4x | |
1760 | architectures on the same system. Use @samp{configure --target=c4x | |
1761 | --enable-languages="c,c++"} to configure. | |
1762 | ||
1763 | ||
1764 | Further installation notes and other useful information about C4x tools | |
1765 | can also be obtained from: | |
1766 | ||
1767 | @itemize @bullet | |
1768 | @item | |
d8393f64 | 1769 | @uref{http://www.elec.canterbury.ac.nz/c4x/,,http://www.elec.canterbury.ac.nz/c4x/} |
0132e321 MH |
1770 | @end itemize |
1771 | ||
f42974dc DW |
1772 | @html |
1773 | </p> | |
1774 | <hr> | |
f42974dc | 1775 | @end html |
ef88b07d | 1776 | @heading @anchor{dos}DOS |
f42974dc DW |
1777 | |
1778 | Please have a look at our @uref{binaries.html,,binaries page}. | |
1779 | ||
f0523f02 | 1780 | You cannot install GCC by itself on MSDOS; it will not compile under |
f85b8d1a JM |
1781 | any MSDOS compiler except itself. You need to get the complete |
1782 | compilation package DJGPP, which includes binaries as well as sources, | |
1783 | and includes all the necessary compilation tools and libraries. | |
1784 | ||
b8df899a JM |
1785 | @html |
1786 | </p> | |
1787 | <hr> | |
1788 | @end html | |
1789 | @heading @anchor{dsp16xx}dsp16xx | |
1790 | A port to the AT&T DSP1610 family of processors. | |
1791 | ||
021c4bfd RO |
1792 | @html |
1793 | </p> | |
1794 | <hr> | |
1795 | @end html | |
1796 | @heading @anchor{*-*-freebsd*}*-*-freebsd* | |
1797 | ||
1798 | The version of binutils installed in @file{/usr/bin} is known to work unless | |
1799 | otherwise specified in any per-architecture notes. However, binutils | |
1800 | 2.11 is known to improve overall testsuite results. | |
1801 | ||
1802 | For FreeBSD 1, FreeBSD 2 or any mutant a.out versions of FreeBSD 3: All | |
1803 | configuration support and files as shipped with GCC 2.95 are still in | |
1804 | place. FreeBSD 2.2.7 has been known to bootstrap completely; however, | |
1805 | it is unknown which version of binutils was used (it is assumed that it | |
1806 | was the system copy in @file{/usr/bin}) and C++ EH failures were noted. | |
1807 | ||
1808 | For FreeBSD using the ELF file format: DWARF 2 debugging is now the | |
1809 | default for all CPU architectures. It had been the default on | |
1810 | FreeBSD/alpha since its inception. You may use @option{-gstabs} instead | |
1811 | of @option{-g}, if you really want the old debugging format. There are | |
1812 | no known issues with mixing object files and libraries with different | |
1813 | debugging formats. Otherwise, this release of GCC should now match more | |
1814 | of the configuration used in the stock FreeBSD configuration of GCC. In | |
1815 | particular, @option{--enable-threads} is now configured by default. | |
1816 | However, as a general user, do not attempt to replace the system | |
1817 | compiler with this release. Known to bootstrap and check with good | |
1818 | results on FreeBSD 3.0, 3.4, 4.0, 4.2, 4.3 and 5-CURRENT@. | |
1819 | ||
1820 | At this time, @option{--enable-threads} is not compatible with | |
1821 | @option{--enable-libgcj} on FreeBSD@. | |
1822 | ||
b8df899a JM |
1823 | @html |
1824 | </p> | |
1825 | <hr> | |
1826 | @end html | |
1827 | @heading @anchor{elxsi-elxsi-bsd}elxsi-elxsi-bsd | |
1828 | The Elxsi's C compiler has known limitations that prevent it from | |
f6df5bd2 | 1829 | compiling GCC@. Please contact @email{mrs@@wrs.com} for more details. |
b8df899a | 1830 | |
f42974dc DW |
1831 | @html |
1832 | </p> | |
1833 | <hr> | |
f42974dc | 1834 | @end html |
ef88b07d | 1835 | @heading @anchor{h8300-hms}h8300-hms |
b8df899a | 1836 | Hitachi H8/300 series of processors. |
f42974dc DW |
1837 | |
1838 | Please have a look at our @uref{binaries.html,,binaries page}. | |
1839 | ||
b8df899a JM |
1840 | The calling convention and structure layout has changed in release 2.6. |
1841 | All code must be recompiled. The calling convention now passes the | |
1842 | first three arguments in function calls in registers. Structures are no | |
1843 | longer a multiple of 2 bytes. | |
1844 | ||
f42974dc DW |
1845 | @html |
1846 | </p> | |
1847 | <hr> | |
f42974dc | 1848 | @end html |
ef88b07d | 1849 | @heading @anchor{hppa*-hp-hpux*}hppa*-hp-hpux* |
f42974dc | 1850 | |
021c4bfd | 1851 | We @emph{highly} recommend using gas/binutils 2.8 or newer on all hppa |
f9047ed3 | 1852 | platforms; you may encounter a variety of problems when using the HP |
f42974dc DW |
1853 | assembler. |
1854 | ||
1855 | Specifically, @option{-g} does not work on HP-UX (since that system | |
1856 | uses a peculiar debugging format which GCC does not know about), unless you | |
38209993 LG |
1857 | use GAS and GDB and configure GCC with the |
1858 | @uref{./configure.html#with-gnu-as,,@option{--with-gnu-as}} and | |
6cfb3f16 | 1859 | @option{--with-as=@dots{}} options. |
f42974dc DW |
1860 | |
1861 | If you wish to use pa-risc 2.0 architecture support, you must use either | |
021c4bfd | 1862 | the HP assembler, gas/binutils 2.11 or a recent |
f42974dc DW |
1863 | @uref{ftp://sources.redhat.com/pub/binutils/snapshots,,snapshot of gas}. |
1864 | ||
021c4bfd | 1865 | More specific information to @samp{hppa*-hp-hpux*} targets follows. |
f42974dc DW |
1866 | |
1867 | @html | |
1868 | </p> | |
1869 | <hr> | |
f42974dc | 1870 | @end html |
ef88b07d | 1871 | @heading @anchor{hppa*-hp-hpux9}hppa*-hp-hpux9 |
f42974dc DW |
1872 | |
1873 | The HP assembler has major problems on this platform. We've tried to work | |
1874 | around the worst of the problems. However, those workarounds may be causing | |
1875 | linker crashes in some circumstances; the workarounds also probably prevent | |
1876 | shared libraries from working. Use the GNU assembler to avoid these problems. | |
1877 | ||
1878 | ||
1879 | The configuration scripts for GCC will also trigger a bug in the hpux9 | |
38209993 LG |
1880 | shell. To avoid this problem set @env{CONFIG_SHELL} to @file{/bin/ksh} |
1881 | and @env{SHELL} to @file{/bin/ksh} in your environment. | |
f42974dc DW |
1882 | |
1883 | ||
1884 | @html | |
1885 | </p> | |
1886 | <hr> | |
f42974dc | 1887 | @end html |
ef88b07d | 1888 | @heading @anchor{hppa*-hp-hpux10}hppa*-hp-hpux10 |
f42974dc | 1889 | |
f9047ed3 | 1890 | For hpux10.20, we @emph{highly} recommend you pick up the latest sed patch |
161d7b59 | 1891 | @code{PHCO_19798} from HP@. HP has two sites which provide patches free of |
f42974dc DW |
1892 | charge: |
1893 | ||
1894 | @itemize @bullet | |
1895 | @item | |
1896 | @html | |
1897 | <a href="http://us-support.external.hp.com">US, Canada, Asia-Pacific, and | |
1898 | Latin-America</a> | |
1899 | @end html | |
1900 | @ifnothtml | |
1901 | @uref{http://us-support.external.hp.com,,}US, Canada, Asia-Pacific, and | |
1902 | Latin-America | |
1903 | @end ifnothtml | |
1904 | @item | |
1905 | @uref{http://europe-support.external.hp.com,,Europe} | |
1906 | @end itemize | |
1907 | ||
1908 | The HP assembler on these systems is much better than the hpux9 assembler, | |
1909 | but still has some problems. Most notably the assembler inserts timestamps | |
1910 | into each object file it creates, causing the 3-stage comparison test to fail | |
f9047ed3 JM |
1911 | during a @samp{make bootstrap}. You should be able to continue by |
1912 | saying @samp{make all} after getting the failure from @samp{make | |
38209993 | 1913 | bootstrap}. |
f42974dc DW |
1914 | |
1915 | ||
1916 | @html | |
1917 | </p> | |
1918 | <hr> | |
f42974dc | 1919 | @end html |
ef88b07d | 1920 | @heading @anchor{hppa*-hp-hpux11}hppa*-hp-hpux11 |
f42974dc | 1921 | |
25b5b465 MM |
1922 | GCC 3.0 supports HP-UX 11. You must use GNU binutils 2.11 or above on |
1923 | this platform. | |
f42974dc | 1924 | |
b8df899a JM |
1925 | @html |
1926 | </p> | |
1927 | <hr> | |
1928 | @end html | |
1929 | @heading @anchor{i370-*-*}i370-*-* | |
1930 | This port is very preliminary and has many known bugs. We hope to | |
1931 | have a higher-quality port for this machine soon. | |
1932 | ||
f42974dc DW |
1933 | @html |
1934 | </p> | |
1935 | <hr> | |
f42974dc | 1936 | @end html |
ef88b07d | 1937 | @heading @anchor{*-*-linux-gnu}*-*-linux-gnu |
f42974dc DW |
1938 | |
1939 | If you use glibc 2.2 (or 2.1.9x), GCC 2.95.2 won't install | |
021c4bfd | 1940 | out-of-the-box. You'll get compile errors while building @samp{libstdc++}. |
f42974dc DW |
1941 | The patch @uref{glibc-2.2.patch,,glibc-2.2.patch}, that is to be |
1942 | applied in the GCC source tree, fixes the compatibility problems. | |
1943 | ||
e15ed790 AJ |
1944 | @html |
1945 | </p> | |
1946 | @end html | |
1947 | ||
1948 | @html | |
1949 | <p> | |
1950 | @end html | |
1951 | ||
1952 | Currently Glibc 2.2.3 (and older releases) and GCC 3.0 are out of sync | |
161d7b59 | 1953 | since the latest exception handling changes for GCC@. Compiling glibc |
e15ed790 AJ |
1954 | with GCC 3.0 will give a binary incompatible glibc and therefore cause |
1955 | lots of problems and might make your system completly unusable. This | |
161d7b59 | 1956 | will definitly need fixes in glibc but might also need fixes in GCC@. We |
e15ed790 AJ |
1957 | strongly advise to wait for glibc 2.2.4 and to read the release notes of |
1958 | glibc 2.2.4 whether patches for GCC 3.0 are needed. You can use glibc | |
1959 | 2.2.3 with GCC 3.0, just do not try to recompile it. | |
1960 | ||
b8df899a JM |
1961 | @html |
1962 | </p> | |
1963 | <hr> | |
1964 | @end html | |
1965 | @heading @anchor{ix86-*-linux*oldld}i?86-*-linux*oldld | |
1966 | Use this configuration to generate @file{a.out} binaries on Linux-based | |
1967 | GNU systems if you do not have gas/binutils version 2.5.2 or later | |
767094dd | 1968 | installed. This is an obsolete configuration. |
b8df899a JM |
1969 | |
1970 | @html | |
1971 | </p> | |
1972 | <hr> | |
1973 | @end html | |
1974 | @heading @anchor{ix86-*-linux*aout}i?86-*-linux*aout | |
1975 | Use this configuration to generate @file{a.out} binaries on Linux-based | |
767094dd | 1976 | GNU systems. This configuration is being superseded. You must use |
b8df899a JM |
1977 | gas/binutils version 2.5.2 or later. |
1978 | ||
f42974dc DW |
1979 | @html |
1980 | </p> | |
1981 | <hr> | |
f42974dc | 1982 | @end html |
ef88b07d | 1983 | @heading @anchor{ix86-*-linux*}i?86-*-linux* |
f42974dc | 1984 | |
021c4bfd | 1985 | You will need binutils 2.9.1.0.15 or newer for exception handling to work. |
f42974dc DW |
1986 | |
1987 | If you receive Signal 11 errors when building on GNU/Linux, then it is | |
1988 | possible you have a hardware problem. Further information on this can be | |
1989 | found on @uref{http://www.bitwizard.nl/sig11/,,www.bitwizard.nl}. | |
1990 | ||
b8df899a JM |
1991 | @html |
1992 | </p> | |
1993 | <hr> | |
1994 | @end html | |
1995 | @heading @anchor{ix86-*-sco}i?86-*-sco | |
1996 | Compilation with RCC is recommended. Also, it may be a good idea to | |
1997 | link with GNU malloc instead of the malloc that comes with the system. | |
1998 | ||
1999 | @html | |
2000 | </p> | |
2001 | <hr> | |
2002 | @end html | |
2003 | @heading @anchor{ix86-*-sco3.2v4}i?86-*-sco3.2v4 | |
2004 | Use this configuration for SCO release 3.2 version 4. | |
2005 | ||
f42974dc DW |
2006 | @html |
2007 | </p> | |
2008 | <hr> | |
f42974dc | 2009 | @end html |
ef88b07d | 2010 | @heading @anchor{ix86-*-sco3.2v5*}i?86-*-sco3.2v5* |
b8df899a | 2011 | Use this for the SCO OpenServer Release 5 family of operating systems. |
f42974dc DW |
2012 | |
2013 | Unlike earlier versions of GCC, the ability to generate COFF with this | |
2014 | target is no longer provided. | |
2015 | ||
021c4bfd | 2016 | Earlier versions of GCC emitted DWARF 1 when generating ELF to allow |
f42974dc | 2017 | the system debugger to be used. That support was too burdensome to |
021c4bfd | 2018 | maintain. GCC now emits only DWARF 2 for this target. This means you |
f42974dc | 2019 | may use either the UDK debugger or GDB to debug programs built by this |
161d7b59 | 2020 | version of GCC@. |
f42974dc | 2021 | |
021c4bfd | 2022 | Use of the @option{-march=pentiumpro} flag can result in |
f42974dc | 2023 | unrecognized opcodes when using the native assembler on OS versions before |
767094dd | 2024 | 5.0.6. (Support for P6 opcodes was added to the native ELF assembler in |
f9047ed3 | 2025 | that version.) While it's rather rare to see these emitted by GCC yet, |
f42974dc DW |
2026 | errors of the basic form: |
2027 | ||
2028 | @example | |
2029 | /usr/tmp/ccaNlqBc.s:22:unknown instruction: fcomip | |
2030 | /usr/tmp/ccaNlqBc.s:50:unknown instruction: fucomip | |
2031 | @end example | |
2032 | ||
2033 | are symptoms of this problem. You may work around this by not | |
2034 | building affected files with that flag, by using the GNU assembler, or | |
161d7b59 | 2035 | by using the assembler provided with the current version of the OS@. |
f42974dc DW |
2036 | Users of GNU assembler should see the note below for hazards on doing |
2037 | so. | |
2038 | ||
2039 | The native SCO assembler that is provided with the OS at no | |
2040 | charge is normally required. If, however, you must be able to use | |
2041 | the GNU assembler (perhaps you're compiling code with asms that | |
2042 | require GAS syntax) you may configure this package using the flags | |
38209993 LG |
2043 | @uref{./configure.html#with-gnu-as,,@option{--with-gnu-as}}. You must |
2044 | use a recent version of GNU binutils; versions past 2.9.1 seem to work | |
2045 | well. | |
f42974dc DW |
2046 | |
2047 | In general, the @option{--with-gnu-as} option isn't as well tested | |
2048 | as the native assembler. | |
2049 | ||
6cfb3f16 | 2050 | Look in @file{gcc/config/i386/sco5.h} (search for ``messy'') for |
f42974dc DW |
2051 | additional OpenServer-specific flags. |
2052 | ||
38209993 | 2053 | Systems based on OpenServer before 5.0.4 (@samp{uname -X} |
021c4bfd RO |
2054 | will tell you what you're running) require TLS597 from |
2055 | @uref{ftp://ftp.sco.com/TLS/,,ftp://ftp.sco.com/TLS/} | |
f42974dc DW |
2056 | for C++ constructors and destructors to work right. |
2057 | ||
2058 | The system linker in (at least) 5.0.4 and 5.0.5 will sometimes | |
2059 | do the wrong thing for a construct that GCC will emit for PIC | |
2060 | code. This can be seen as execution testsuite failures when using | |
6cfb3f16 | 2061 | @option{-fPIC} on @file{921215-1.c}, @file{931002-1.c}, @file{nestfunc-1.c}, and @file{gcov-1.c}. |
f42974dc | 2062 | For 5.0.5, an updated linker that will cure this problem is |
f9047ed3 | 2063 | available. You must install both |
38209993 | 2064 | @uref{ftp://ftp.sco.com/Supplements/rs505a/,,ftp://ftp.sco.com/Supplements/rs505a/} |
f42974dc DW |
2065 | and @uref{ftp://ftp.sco.com/SLS/,,OSS499A}. |
2066 | ||
2067 | The dynamic linker in OpenServer 5.0.5 (earlier versions may show | |
021c4bfd | 2068 | the same problem) aborts on certain G77-compiled programs. It's particularly |
f42974dc DW |
2069 | likely to be triggered by building Fortran code with the @option{-fPIC} flag. |
2070 | Although it's conceivable that the error could be triggered by other | |
2071 | code, only G77-compiled code has been observed to cause this abort. | |
2072 | If you are getting core dumps immediately upon execution of your | |
021c4bfd RO |
2073 | G77 program---and especially if it's compiled with @option{-fPIC}---try applying |
2074 | @uref{sco_osr5_g77.patch,,@file{sco_osr5_g77.patch}} to your @samp{libf2c} and | |
161d7b59 | 2075 | rebuilding GCC@. |
f42974dc DW |
2076 | Affected faults, when analyzed in a debugger, will show a stack |
2077 | backtrace with a fault occurring in @code{rtld()} and the program | |
f9047ed3 | 2078 | running as @file{/usr/lib/ld.so.1}. This problem has been reported to SCO |
f42974dc DW |
2079 | engineering and will hopefully be addressed in later releases. |
2080 | ||
2081 | ||
f42974dc DW |
2082 | @html |
2083 | </p> | |
2084 | <hr> | |
f42974dc | 2085 | @end html |
ef88b07d | 2086 | @heading @anchor{ix86-*-udk}i?86-*-udk |
f42974dc DW |
2087 | |
2088 | This target emulates the SCO Universal Development Kit and requires that | |
f9047ed3 JM |
2089 | package be installed. (If it is installed, you will have a |
2090 | @file{/udk/usr/ccs/bin/cc} file present.) It's very much like the | |
b953cc4b | 2091 | @samp{i?86-*-unixware7*} target |
f42974dc DW |
2092 | but is meant to be used when hosting on a system where UDK isn't the |
2093 | default compiler such as OpenServer 5 or Unixware 2. This target will | |
f9047ed3 | 2094 | generate binaries that will run on OpenServer, Unixware 2, or Unixware 7, |
161d7b59 | 2095 | with the same warnings and caveats as the SCO UDK@. |
f42974dc | 2096 | |
f42974dc DW |
2097 | This target is a little tricky to build because we have to distinguish |
2098 | it from the native tools (so it gets headers, startups, and libraries | |
f9047ed3 | 2099 | from the right place) while making the tools not think we're actually |
f42974dc DW |
2100 | building a cross compiler. The easiest way to do this is with a configure |
2101 | command like this: | |
2102 | ||
f9047ed3 | 2103 | @samp{CC=/udk/usr/ccs/bin/cc @var{/your/path/to}/gcc/configure |
f42974dc DW |
2104 | --host=i686-pc-udk --target=i686-pc-udk --program-prefix=udk-} |
2105 | ||
6cfb3f16 | 2106 | @emph{You should substitute @samp{i686} in the above command with the appropriate |
f42974dc DW |
2107 | processor for your host.} |
2108 | ||
021c4bfd RO |
2109 | After the usual @samp{make bootstrap} and |
2110 | @samp{make install}, you can then access the UDK-targeted GCC | |
38209993 LG |
2111 | tools by adding @command{udk-} before the commonly known name. For |
2112 | example, to invoke the C compiler, you would use @command{udk-gcc}. | |
2113 | They will coexist peacefully with any native-target GCC tools you may | |
2114 | have installed. | |
f42974dc DW |
2115 | |
2116 | ||
b8df899a JM |
2117 | @html |
2118 | </p> | |
2119 | <hr> | |
2120 | @end html | |
2121 | @heading @anchor{ix86-*-isc}i?86-*-isc | |
2122 | It may be a good idea to link with GNU malloc instead of the malloc that | |
2123 | comes with the system. | |
2124 | ||
6cfb3f16 JM |
2125 | In ISC version 4.1, @command{sed} core dumps when building |
2126 | @file{deduced.h}. Use the version of @command{sed} from version 4.0. | |
b8df899a JM |
2127 | |
2128 | @html | |
2129 | </p> | |
2130 | <hr> | |
2131 | @end html | |
2132 | @heading @anchor{ix86-*-esix}i?86-*-esix | |
2133 | It may be good idea to link with GNU malloc instead of the malloc that | |
2134 | comes with the system. | |
2135 | ||
2136 | @html | |
2137 | </p> | |
2138 | <hr> | |
2139 | @end html | |
2140 | @heading @anchor{ix86-ibm-aix}i?86-ibm-aix | |
2141 | You need to use GAS version 2.1 or later, and LD from | |
2142 | GNU binutils version 2.2 or later. | |
2143 | ||
2144 | @html | |
2145 | </p> | |
2146 | <hr> | |
2147 | @end html | |
2148 | @heading @anchor{ix86-sequent-bsd}i?86-sequent-bsd | |
2149 | Go to the Berkeley universe before compiling. | |
2150 | ||
2151 | @html | |
2152 | </p> | |
2153 | <hr> | |
2154 | @end html | |
2155 | @heading @anchor{ix86-sequent-ptx1*}i?86-sequent-ptx1*, i?86-sequent-ptx2* | |
021c4bfd | 2156 | You must install GNU @command{sed} before running @command{configure}. |
b8df899a JM |
2157 | |
2158 | @html | |
2159 | </p> | |
2160 | <hr> | |
2161 | @end html | |
2162 | @heading @anchor{#ix86-*-sysv3*}i?86-*-sysv3* | |
2163 | The @code{fixproto} shell script may trigger a bug in the system shell. | |
2164 | If you encounter this problem, upgrade your operating system or | |
021c4bfd | 2165 | use @command{bash} (the GNU shell) to run @code{fixproto}. |
b8df899a JM |
2166 | |
2167 | ||
2168 | @html | |
2169 | </p> | |
2170 | <hr> | |
2171 | @end html | |
2172 | @heading @anchor{i860-intel-osf*}i860-intel-osf* | |
2173 | On the Intel Paragon (an i860 machine), if you are using operating | |
2174 | system version 1.0, you will get warnings or errors about redefinition | |
161d7b59 | 2175 | of @code{va_arg} when you build GCC@. |
b8df899a JM |
2176 | |
2177 | If this happens, then you need to link most programs with the library | |
2178 | @file{iclib.a}. You must also modify @file{stdio.h} as follows: before | |
2179 | the lines | |
2180 | ||
2181 | @example | |
2182 | #if defined(__i860__) && !defined(_VA_LIST) | |
2183 | #include <va_list.h> | |
2184 | @end example | |
2185 | ||
2186 | @noindent | |
2187 | insert the line | |
2188 | ||
2189 | @example | |
2190 | #if __PGC__ | |
2191 | @end example | |
2192 | ||
2193 | @noindent | |
2194 | and after the lines | |
2195 | ||
2196 | @example | |
2197 | extern int vprintf(const char *, va_list ); | |
2198 | extern int vsprintf(char *, const char *, va_list ); | |
2199 | #endif | |
2200 | @end example | |
2201 | ||
2202 | @noindent | |
2203 | insert the line | |
2204 | ||
2205 | @example | |
2206 | #endif /* __PGC__ */ | |
2207 | @end example | |
2208 | ||
2209 | These problems don't exist in operating system version 1.1. | |
2210 | ||
2211 | @html | |
2212 | </p> | |
2213 | <hr> | |
2214 | @end html | |
2215 | @heading @anchor{*-lynx-lynxos}*-lynx-lynxos | |
f0523f02 | 2216 | LynxOS 2.2 and earlier comes with GCC 1.x already installed as |
b8df899a | 2217 | @file{/bin/gcc}. You should compile with this instead of @file{/bin/cc}. |
f0523f02 | 2218 | You can tell GCC to use the GNU assembler and linker, by specifying |
b8df899a | 2219 | @samp{--with-gnu-as --with-gnu-ld} when configuring. These will produce |
f0523f02 | 2220 | COFF format object files and executables; otherwise GCC will use the |
b8df899a JM |
2221 | installed tools, which produce @file{a.out} format executables. |
2222 | ||
f42974dc DW |
2223 | @html |
2224 | </p> | |
2225 | <hr> | |
f42974dc DW |
2226 | <!-- rs6000-ibm-aix*, powerpc-ibm-aix* --> |
2227 | @end html | |
ef88b07d | 2228 | @heading @anchor{*-ibm-aix*}*-ibm-aix* |
f42974dc DW |
2229 | |
2230 | AIX Make frequently has problems with GCC makefiles. GNU Make 3.76 or | |
2231 | newer is recommended to build on this platform. | |
2232 | ||
6cfb3f16 | 2233 | Errors involving @code{alloca} when building GCC generally are due |
021c4bfd | 2234 | to an incorrect definition of @code{CC} in the Makefile or mixing files |
161d7b59 | 2235 | compiled with the native C compiler and GCC@. During the stage1 phase of |
6cfb3f16 JM |
2236 | the build, the native AIX compiler @strong{must} be invoked as @command{cc} |
2237 | (not @command{xlc}). Once @command{configure} has been informed of | |
2238 | @command{xlc}, one needs to use @samp{make distclean} to remove the | |
38209993 | 2239 | configure cache files and ensure that @env{CC} environment variable |
f42974dc DW |
2240 | does not provide a definition that will confuse @command{configure}. |
2241 | If this error occurs during stage2 or later, then the problem most likely | |
2242 | is the version of Make (see above). | |
2243 | ||
df002c7d | 2244 | Binutils 2.10 does not support AIX 4.3. Binutils available from the |
38209993 LG |
2245 | @uref{http://www-1.ibm.com/servers/aix/products/aixos/linux/,,AIX |
2246 | Toolbox for Linux: GNU and Open Source tools for AIX}; | |
df002c7d | 2247 | website does work. Binutils 2.11 is expected to include AIX 4.3 |
021c4bfd RO |
2248 | support. The GNU Assembler is necessary for @samp{libstdc++} to build. The |
2249 | AIX native @command{ld} still is recommended. The native AIX tools do | |
161d7b59 | 2250 | interoperate with GCC@. |
df002c7d DE |
2251 | |
2252 | Linking executables and shared libraries may produce warnings of | |
2253 | duplicate symbols. The assembly files generated by GCC for AIX always | |
2254 | have included multiple symbol definitions for certain global variable | |
2255 | and function declarations in the original program. The warnings should | |
2256 | not prevent the linker from producing a correct library or runnable | |
2257 | executable. | |
2258 | ||
d5d8d540 DE |
2259 | GCC's exception handling implementation stores process-specific data in |
2260 | the shared library which prevents exception handling from working | |
2261 | correctly on AIX in a default installation. To work around this, the | |
2262 | shared objects need to be loaded in the process private segment to | |
2263 | prevent them from being shared and marked read-only. This is | |
2264 | accomplished on AIX by installing the shared libraries | |
2265 | (@file{libgcc_s.a} and @file{libstdc++.a}) with file permissions | |
2266 | disallowing read-other (@samp{chmod a+x,o-r}). If the shared libraries | |
2267 | have been used, the shared library segment can be cleaned using the | |
2268 | @samp{/usr/sbin/slibclean} command. | |
2269 | ||
6cfb3f16 | 2270 | AIX 4.3 utilizes a ``large format'' archive to support both 32-bit and |
df002c7d DE |
2271 | 64-bit object modules. The routines provided in AIX 4.3.0 and AIX 4.3.1 |
2272 | to parse archive libraries did not handle the new format correctly. | |
2273 | These routines are used by GCC and result in error messages during | |
6cfb3f16 | 2274 | linking such as ``not a COFF file''. The version of the routines shipped |
df002c7d DE |
2275 | with AIX 4.3.1 should work for a 32-bit environment. The @option{-g} |
2276 | option of the archive command may be used to create archives of 32-bit | |
6cfb3f16 | 2277 | objects using the original ``small format''. A correct version of the |
d5d8d540 | 2278 | routines is shipped with AIX 4.3.2 and above. |
df002c7d | 2279 | |
f42974dc DW |
2280 | Some versions of the AIX binder (linker) can fail with a relocation |
2281 | overflow severe error when the @option{-bbigtoc} option is used to link | |
161d7b59 | 2282 | GCC-produced object files into an executable that overflows the TOC@. A fix |
f42974dc DW |
2283 | for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC) is |
2284 | available from IBM Customer Support and from its | |
d5d8d540 | 2285 | @uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com} |
f42974dc DW |
2286 | website as PTF U455193. |
2287 | ||
df002c7d | 2288 | The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core |
161d7b59 | 2289 | with a segmentation fault when invoked by any version of GCC@. A fix for |
df002c7d | 2290 | APAR IX87327 is available from IBM Customer Support and from its |
d5d8d540 | 2291 | @uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com} |
df002c7d | 2292 | website as PTF U461879. This fix is incorporated in AIX 4.3.3 and above. |
f42974dc DW |
2293 | |
2294 | The initial assembler shipped with AIX 4.3.0 generates incorrect object | |
2295 | files. A fix for APAR IX74254 (64BIT DISASSEMBLED OUTPUT FROM COMPILER FAILS | |
2296 | TO ASSEMBLE/BIND) is available from IBM Customer Support and from its | |
d5d8d540 | 2297 | @uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com} |
f42974dc DW |
2298 | website as PTF U453956. This fix is incorporated in AIX 4.3.1 and above. |
2299 | ||
161d7b59 | 2300 | AIX provides National Language Support (NLS)@. Compilers and assemblers |
df002c7d | 2301 | use NLS to support locale-specific representations of various data |
6cfb3f16 | 2302 | formats including floating-point numbers (e.g., @samp{.} vs @samp{,} for |
df002c7d DE |
2303 | separating decimal fractions). There have been problems reported where |
2304 | GCC does not produce the same floating-point formats that the assembler | |
c771326b | 2305 | expects. If one encounters this problem, set the @env{LANG} |
6cfb3f16 | 2306 | environment variable to @samp{C} or @samp{En_US}. |
f42974dc | 2307 | |
5791e6da DE |
2308 | By default, GCC for AIX 4.1 and above produces code that can be used on |
2309 | both Power or PowerPC processors. | |
2310 | ||
d5d8d540 DE |
2311 | A default can be specified with the @option{-mcpu=@var{cpu_type}} |
2312 | switch and using the configure option @option{--with-cpu-@var{cpu_type}}. | |
f42974dc | 2313 | |
b8df899a JM |
2314 | @html |
2315 | </p> | |
2316 | <hr> | |
2317 | @end html | |
2318 | @heading @anchor{m32r-*-elf}m32r-*-elf | |
2319 | Mitsubishi M32R processor. | |
2320 | This configuration is intended for embedded systems. | |
2321 | ||
2322 | @html | |
2323 | </p> | |
2324 | <hr> | |
2325 | @end html | |
2326 | @heading @anchor{m68000-hp-bsd}m68000-hp-bsd | |
161d7b59 | 2327 | HP 9000 series 200 running BSD@. Note that the C compiler that comes |
f0523f02 JM |
2328 | with this system cannot compile GCC; contact @email{law@@cygnus.com} |
2329 | to get binaries of GCC for bootstrapping. | |
b8df899a JM |
2330 | |
2331 | @html | |
2332 | </p> | |
2333 | <hr> | |
2334 | @end html | |
2335 | @heading @anchor{m6811-elf}m6811-elf | |
2336 | Motorola 68HC11 family micro controllers. These are used in embedded | |
2337 | applications. There are no standard Unix configurations. | |
2338 | ||
2339 | @html | |
2340 | </p> | |
2341 | <hr> | |
2342 | @end html | |
2343 | @heading @anchor{m6812-elf}m6812-elf | |
2344 | Motorola 68HC12 family micro controllers. These are used in embedded | |
2345 | applications. There are no standard Unix configurations. | |
2346 | ||
2347 | @html | |
2348 | </p> | |
2349 | <hr> | |
2350 | @end html | |
2351 | @heading @anchor{m68k-altos}m68k-altos | |
2352 | Altos 3068. You must use the GNU assembler, linker and debugger. | |
021c4bfd | 2353 | Also, you must fix a kernel bug. |
b8df899a JM |
2354 | |
2355 | @html | |
2356 | </p> | |
2357 | <hr> | |
2358 | @end html | |
2359 | @heading @anchor{m68k-apple-aux}m68k-apple-aux | |
161d7b59 | 2360 | Apple Macintosh running A/UX@. |
b8df899a JM |
2361 | You may configure GCC to use either the system assembler and |
2362 | linker or the GNU assembler and linker. You should use the GNU configuration | |
021c4bfd RO |
2363 | if you can, especially if you also want to use G++. You enable |
2364 | that configuration with the @option{--with-gnu-as} and @option{--with-gnu-ld} | |
b8df899a JM |
2365 | options to @code{configure}. |
2366 | ||
2367 | Note the C compiler that comes | |
161d7b59 | 2368 | with this system cannot compile GCC@. You can find binaries of GCC |
b8df899a JM |
2369 | for bootstrapping on @code{jagubox.gsfc.nasa.gov}. |
2370 | You will also a patched version of @file{/bin/ld} there that | |
2371 | raises some of the arbitrary limits found in the original. | |
2372 | ||
2373 | @html | |
2374 | </p> | |
2375 | <hr> | |
2376 | @end html | |
2377 | @heading @anchor{m68k-att-sysv}m68k-att-sysv | |
161d7b59 | 2378 | AT&T 3b1, a.k.a.@: 7300 PC@. This version of GCC cannot |
b8df899a JM |
2379 | be compiled with the system C compiler, which is too buggy. |
2380 | You will need to get a previous version of GCC and use it to | |
2381 | bootstrap. Binaries are available from the OSU-CIS archive, at | |
2382 | @uref{ftp://archive.cis.ohio-state.edu/pub/att7300/}. | |
2383 | ||
2384 | @html | |
2385 | </p> | |
2386 | <hr> | |
2387 | @end html | |
2388 | @heading @anchor{m68k-bull-sysv}m68k-bull-sysv | |
767094dd JM |
2389 | Bull DPX/2 series 200 and 300 with BOS-2.00.45 up to BOS-2.01. GCC works |
2390 | either with native assembler or GNU assembler. You can use | |
021c4bfd RO |
2391 | GNU assembler with native COFF generation by providing @option{--with-gnu-as} to |
2392 | the configure script or use GNU assembler with stabs-in-COFF encapsulation | |
2393 | by providing @samp{--with-gnu-as --stabs}. For any problem with the native | |
b8df899a JM |
2394 | assembler or for availability of the DPX/2 port of GAS, contact |
2395 | @email{F.Pierresteguy@@frcl.bull.fr}. | |
2396 | ||
2397 | @html | |
2398 | </p> | |
2399 | <hr> | |
2400 | @end html | |
2401 | @heading @anchor{m68k-crds-unox}m68k-crds-unox | |
2402 | Use @samp{configure unos} for building on Unos. | |
2403 | ||
2404 | The Unos assembler is named @code{casm} instead of @code{as}. For some | |
2405 | strange reason linking @file{/bin/as} to @file{/bin/casm} changes the | |
f0523f02 | 2406 | behavior, and does not work. So, when installing GCC, you should |
b8df899a JM |
2407 | install the following script as @file{as} in the subdirectory where |
2408 | the passes of GCC are installed: | |
2409 | ||
2410 | @example | |
2411 | #!/bin/sh | |
2412 | casm $* | |
2413 | @end example | |
2414 | ||
2415 | The default Unos library is named @file{libunos.a} instead of | |
f0523f02 | 2416 | @file{libc.a}. To allow GCC to function, either change all |
6cfb3f16 | 2417 | references to @option{-lc} in @file{gcc.c} to @option{-lunos} or link |
b8df899a JM |
2418 | @file{/lib/libc.a} to @file{/lib/libunos.a}. |
2419 | ||
2420 | @cindex @code{alloca}, for Unos | |
f0523f02 | 2421 | When compiling GCC with the standard compiler, to overcome bugs in |
6cfb3f16 JM |
2422 | the support of @code{alloca}, do not use @option{-O} when making stage 2. |
2423 | Then use the stage 2 compiler with @option{-O} to make the stage 3 | |
b8df899a JM |
2424 | compiler. This compiler will have the same characteristics as the usual |
2425 | stage 2 compiler on other systems. Use it to make a stage 4 compiler | |
2426 | and compare that with stage 3 to verify proper compilation. | |
2427 | ||
2428 | (Perhaps simply defining @code{ALLOCA} in @file{x-crds} as described in | |
2429 | the comments there will make the above paragraph superfluous. Please | |
2430 | inform us of whether this works.) | |
2431 | ||
2432 | Unos uses memory segmentation instead of demand paging, so you will need | |
2433 | a lot of memory. 5 Mb is barely enough if no other tasks are running. | |
2434 | If linking @file{cc1} fails, try putting the object files into a library | |
2435 | and linking from that library. | |
2436 | ||
2437 | @html | |
2438 | </p> | |
2439 | <hr> | |
2440 | @end html | |
2441 | @heading @anchor{m68k-hp-hpux}m68k-hp-hpux | |
161d7b59 JM |
2442 | HP 9000 series 300 or 400 running HP-UX@. HP-UX version 8.0 has a bug in |
2443 | the assembler that prevents compilation of GCC@. This | |
b8df899a JM |
2444 | bug manifests itself during the first stage of compilation, while |
2445 | building @file{libgcc2.a}: | |
2446 | ||
2447 | @smallexample | |
2448 | _floatdisf | |
2449 | cc1: warning: `-g' option not supported on this version of GCC | |
2450 | cc1: warning: `-g1' option not supported on this version of GCC | |
2451 | ./xgcc: Internal compiler error: program as got fatal signal 11 | |
2452 | @end smallexample | |
2453 | ||
2454 | A patched version of the assembler is available as the file | |
2455 | @uref{ftp://altdorf.ai.mit.edu/archive/cph/hpux-8.0-assembler}. If you | |
2456 | have HP software support, the patch can also be obtained directly from | |
2457 | HP, as described in the following note: | |
2458 | ||
2459 | @quotation | |
2460 | This is the patched assembler, to patch SR#1653-010439, where the | |
2461 | assembler aborts on floating point constants. | |
2462 | ||
2463 | The bug is not really in the assembler, but in the shared library | |
2464 | version of the function ``cvtnum(3c)''. The bug on ``cvtnum(3c)'' is | |
2465 | SR#4701-078451. Anyway, the attached assembler uses the archive | |
2466 | library version of ``cvtnum(3c)'' and thus does not exhibit the bug. | |
2467 | @end quotation | |
2468 | ||
2469 | This patch is also known as PHCO_4484. | |
2470 | ||
021c4bfd | 2471 | In addition, if you wish to use gas, you must use |
b8df899a JM |
2472 | gas version 2.1 or later, and you must use the GNU linker version 2.1 or |
2473 | later. Earlier versions of gas relied upon a program which converted the | |
2474 | gas output into the native HP-UX format, but that program has not been | |
2475 | kept up to date. gdb does not understand that native HP-UX format, so | |
2476 | you must use gas if you wish to use gdb. | |
2477 | ||
2478 | On HP-UX version 8.05, but not on 8.07 or more recent versions, the | |
2479 | @code{fixproto} shell script triggers a bug in the system shell. If you | |
2480 | encounter this problem, upgrade your operating system or use BASH (the | |
2481 | GNU shell) to run @code{fixproto}. This bug will cause the fixproto | |
2482 | program to report an error of the form: | |
2483 | ||
2484 | @example | |
2485 | ./fixproto: sh internal 1K buffer overflow | |
2486 | @end example | |
2487 | ||
2488 | To fix this, you can also change the first line of the fixproto script | |
2489 | to look like: | |
2490 | ||
2491 | @example | |
2492 | #!/bin/ksh | |
2493 | @end example | |
2494 | ||
2495 | ||
f42974dc DW |
2496 | @html |
2497 | </p> | |
2498 | <hr> | |
f42974dc | 2499 | @end html |
ef88b07d | 2500 | @heading @anchor{m68k-*-nextstep*}m68k-*-nextstep* |
f42974dc | 2501 | |
b8df899a JM |
2502 | Current GCC versions probably do not work on version 2 of the NeXT |
2503 | operating system. | |
2504 | ||
2147b154 | 2505 | On NeXTStep 3.0, the Objective-C compiler does not work, due, |
b8df899a JM |
2506 | apparently, to a kernel bug that it happens to trigger. This problem |
2507 | does not happen on 3.1. | |
2508 | ||
f42974dc DW |
2509 | You absolutely @strong{must} use GNU sed and GNU make on this platform. |
2510 | ||
2511 | ||
eea81d3e | 2512 | On NeXTSTEP 3.x where x < 3 the build of GCC will abort during |
f42974dc DW |
2513 | stage1 with an error message like this: |
2514 | ||
2515 | @example | |
2516 | _eh | |
2517 | /usr/tmp/ccbbsZ0U.s:987:Unknown pseudo-op: .section | |
2518 | /usr/tmp/ccbbsZ0U.s:987:Rest of line ignored. 1st junk character | |
2519 | valued 95 (_). | |
2520 | @end example | |
2521 | ||
f9047ed3 | 2522 | The reason for this is the fact that NeXT's assembler for these |
6cfb3f16 | 2523 | versions of the operating system does not support the @samp{.section} |
f42974dc DW |
2524 | pseudo op that's needed for full C++ exception functionality. |
2525 | ||
f9047ed3 JM |
2526 | As NeXT's assembler is a derived work from GNU as, a free |
2527 | replacement that does can be obtained at | |
f42974dc DW |
2528 | @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}. |
2529 | ||
2530 | If you try to build the integrated C++ & C++ runtime libraries on this system | |
2531 | you will run into trouble with include files. The way to get around this is | |
2532 | to use the following sequence. Note you must have write permission to | |
38209993 | 2533 | the directory @var{prefix} you specified in the configuration process of GCC |
f42974dc DW |
2534 | for this sequence to work. |
2535 | ||
2536 | @example | |
2537 | cd bld-gcc | |
2538 | make all-texinfo all-bison all-byacc all-binutils all-gas all-ld | |
2539 | cd gcc | |
2540 | make bootstrap | |
2541 | make install-headers-tar | |
2542 | cd .. | |
2543 | make bootstrap3 | |
2544 | @end example | |
2545 | ||
b8df899a JM |
2546 | @html |
2547 | </p> | |
2548 | <hr> | |
2549 | @end html | |
2550 | @heading @anchor{m68k-ncr-*}m68k-ncr-* | |
2551 | On the Tower models 4@var{n}0 and 6@var{n}0, by default a process is not | |
2552 | allowed to have more than one megabyte of memory. GCC cannot compile | |
6cfb3f16 | 2553 | itself (or many other programs) with @option{-O} in that much memory. |
b8df899a JM |
2554 | |
2555 | To solve this problem, reconfigure the kernel adding the following line | |
2556 | to the configuration file: | |
2557 | ||
2558 | @smallexample | |
2559 | MAXUMEM = 4096 | |
2560 | @end smallexample | |
2561 | ||
2562 | ||
2563 | @html | |
2564 | </p> | |
2565 | <hr> | |
2566 | @end html | |
2567 | @heading @anchor{m68k-sun}m68k-sun | |
2568 | Sun 3. We do not provide a configuration file to use the Sun FPA by | |
2569 | default, because programs that establish signal handlers for floating | |
161d7b59 | 2570 | point traps inherently cannot work with the FPA@. |
f42974dc DW |
2571 | |
2572 | @html | |
2573 | </p> | |
2574 | <hr> | |
f42974dc | 2575 | @end html |
ef88b07d | 2576 | @heading @anchor{m68k-sun-sunos4.1.1}m68k-sun-sunos4.1.1 |
f42974dc DW |
2577 | |
2578 | It is reported that you may need the GNU assembler on this platform. | |
2579 | ||
2580 | ||
b8df899a JM |
2581 | @html |
2582 | </p> | |
2583 | <hr> | |
2584 | @end html | |
2585 | @heading @anchor{m88k-*-svr3}m88k-*-svr3 | |
2586 | Motorola m88k running the AT&T/Unisoft/Motorola V.3 reference port. | |
2587 | These systems tend to use the Green Hills C, revision 1.8.5, as the | |
2588 | standard C compiler. There are apparently bugs in this compiler that | |
2589 | result in object files differences between stage 2 and stage 3. If this | |
2590 | happens, make the stage 4 compiler and compare it to the stage 3 | |
2591 | compiler. If the stage 3 and stage 4 object files are identical, this | |
2592 | suggests you encountered a problem with the standard C compiler; the | |
2593 | stage 3 and 4 compilers may be usable. | |
2594 | ||
f0523f02 | 2595 | It is best, however, to use an older version of GCC for bootstrapping |
b8df899a JM |
2596 | if you have one. |
2597 | ||
2598 | @html | |
2599 | </p> | |
2600 | <hr> | |
2601 | @end html | |
2602 | @heading @anchor{m88k-*-dgux}m88k-*-dgux | |
161d7b59 | 2603 | Motorola m88k running DG/UX@. To build 88open BCS native or cross |
b8df899a JM |
2604 | compilers on DG/UX, specify the configuration name as |
2605 | @samp{m88k-*-dguxbcs} and build in the 88open BCS software development | |
2606 | environment. To build ELF native or cross compilers on DG/UX, specify | |
2607 | @samp{m88k-*-dgux} and build in the DG/UX ELF development environment. | |
2608 | You set the software development environment by issuing | |
2609 | @samp{sde-target} command and specifying either @samp{m88kbcs} or | |
2610 | @samp{m88kdguxelf} as the operand. | |
2611 | ||
2612 | If you do not specify a configuration name, @file{configure} guesses the | |
2613 | configuration based on the current software development environment. | |
2614 | ||
2615 | @html | |
2616 | </p> | |
2617 | <hr> | |
2618 | @end html | |
2619 | @heading @anchor{m88k-tektronix-sysv3}m88k-tektronix-sysv3 | |
2620 | Tektronix XD88 running UTekV 3.2e. Do not turn on | |
2621 | optimization while building stage1 if you bootstrap with | |
021c4bfd | 2622 | the buggy Green Hills compiler. Also, the bundled LAI |
b8df899a JM |
2623 | System V NFS is buggy so if you build in an NFS mounted |
2624 | directory, start from a fresh reboot, or avoid NFS all together. | |
2625 | Otherwise you may have trouble getting clean comparisons | |
2626 | between stages. | |
2627 | ||
2628 | @html | |
2629 | </p> | |
2630 | <hr> | |
2631 | @end html | |
2632 | @heading @anchor{mips-*-*}mips-*-* | |
2633 | If you use the 1.31 version of the MIPS assembler (such as was shipped | |
6cfb3f16 | 2634 | with Ultrix 3.1), you will need to use the @option{-fno-delayed-branch} switch |
b8df899a JM |
2635 | when optimizing floating point code. Otherwise, the assembler will |
2636 | complain when the GCC compiler fills a branch delay slot with a | |
2637 | floating point instruction, such as @code{add.d}. | |
2638 | ||
2639 | If on a MIPS system you get an error message saying ``does not have gp | |
2640 | sections for all it's [sic] sectons [sic]'', don't worry about it. This | |
2641 | happens whenever you use GAS with the MIPS linker, but there is not | |
2642 | really anything wrong, and it is okay to use the output file. You can | |
2643 | stop such warnings by installing the GNU linker. | |
2644 | ||
2645 | It would be nice to extend GAS to produce the gp tables, but they are | |
2646 | optional, and there should not be a warning about their absence. | |
2647 | ||
2648 | Users have reported some problems with version 2.0 of the MIPS | |
2649 | compiler tools that were shipped with Ultrix 4.1. Version 2.10 | |
2650 | which came with Ultrix 4.2 seems to work fine. | |
2651 | ||
2652 | Users have also reported some problems with version 2.20 of the | |
2653 | MIPS compiler tools that were shipped with RISC/os 4.x. The earlier | |
2654 | version 2.11 seems to work fine. | |
2655 | ||
2656 | Some versions of the MIPS linker will issue an assertion failure | |
2657 | when linking code that uses @code{alloca} against shared | |
2658 | libraries on RISC-OS 5.0, and DEC's OSF/1 systems. This is a bug | |
2659 | in the linker, that is supposed to be fixed in future revisions. | |
6cfb3f16 JM |
2660 | To protect against this, GCC passes @option{-non_shared} to the |
2661 | linker unless you pass an explicit @option{-shared} or | |
2662 | @option{-call_shared} switch. | |
b8df899a JM |
2663 | |
2664 | @heading @anchor{mips-mips-bsd}mips-mips-bsd | |
2665 | MIPS machines running the MIPS operating system in BSD mode. It's | |
2666 | possible that some old versions of the system lack the functions | |
2667 | @code{memcpy}, @code{memmove}, @code{memcmp}, and @code{memset}. If your | |
2668 | system lacks these, you must remove or undo the definition of | |
2669 | @code{TARGET_MEM_FUNCTIONS} in @file{mips-bsd.h}. | |
2670 | ||
021c4bfd RO |
2671 | If you use the MIPS C compiler to bootstrap, it may be necessary |
2672 | to increase its table size for switch statements with the | |
2673 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
2674 | optimization option, you also need to use @option{-Olimit 3000}. | |
2675 | Both of these options are automatically generated in the | |
2676 | @file{Makefile} that the shell script @file{configure} builds. | |
2677 | If you override the @code{CC} make variable and use the MIPS | |
2678 | compilers, you may need to add @option{-Wf,-XNg1500 -Olimit 3000}. | |
2679 | ||
2680 | @html | |
2681 | </p> | |
2682 | <hr> | |
2683 | @end html | |
2684 | @heading @anchor{mips-dec-*}mips-dec-* | |
2685 | MIPS-based DECstations can support three different personalities: | |
2686 | Ultrix, DEC OSF/1, and OSF/rose. (Alpha-based DECstation products have | |
2687 | a configuration name beginning with @samp{alpha*-dec}.) To configure GCC | |
2688 | for these platforms use the following configurations: | |
2689 | ||
2690 | @table @samp | |
2691 | @item mips-dec-ultrix | |
2692 | Ultrix configuration. | |
2693 | ||
2694 | @item mips-dec-osf1 | |
2695 | DEC's version of OSF/1. | |
2696 | ||
2697 | @item mips-dec-osfrose | |
2698 | Open Software Foundation reference port of OSF/1 which uses the | |
2699 | OSF/rose object file format instead of ECOFF@. Normally, you | |
2700 | would not select this configuration. | |
2701 | @end table | |
2702 | ||
2703 | If you use the MIPS C compiler to bootstrap, it may be necessary | |
2704 | to increase its table size for switch statements with the | |
2705 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
6cfb3f16 | 2706 | optimization option, you also need to use @option{-Olimit 3000}. |
b8df899a JM |
2707 | Both of these options are automatically generated in the |
2708 | @file{Makefile} that the shell script @file{configure} builds. | |
2709 | If you override the @code{CC} make variable and use the MIPS | |
6cfb3f16 | 2710 | compilers, you may need to add @option{-Wf,-XNg1500 -Olimit 3000}. |
b8df899a JM |
2711 | |
2712 | @html | |
2713 | </p> | |
2714 | <hr> | |
2715 | @end html | |
2716 | @heading @anchor{mips-mips-riscos*}mips-mips-riscos* | |
021c4bfd RO |
2717 | If you use the MIPS C compiler to bootstrap, it may be necessary |
2718 | to increase its table size for switch statements with the | |
2719 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
6cfb3f16 | 2720 | optimization option, you also need to use @option{-Olimit 3000}. |
b8df899a JM |
2721 | Both of these options are automatically generated in the |
2722 | @file{Makefile} that the shell script @file{configure} builds. | |
2723 | If you override the @code{CC} make variable and use the MIPS | |
2724 | compilers, you may need to add @samp{-Wf,-XNg1500 -Olimit 3000}. | |
2725 | ||
2726 | MIPS computers running RISC-OS can support four different | |
2727 | personalities: default, BSD 4.3, System V.3, and System V.4 | |
2728 | (older versions of RISC-OS don't support V.4). To configure GCC | |
2729 | for these platforms use the following configurations: | |
2730 | ||
2731 | @table @samp | |
021c4bfd RO |
2732 | @item mips-mips-riscos@var{rev} |
2733 | Default configuration for RISC-OS, revision @var{rev}. | |
b8df899a | 2734 | |
021c4bfd RO |
2735 | @item mips-mips-riscos@var{rev}bsd |
2736 | BSD 4.3 configuration for RISC-OS, revision @var{rev}. | |
b8df899a | 2737 | |
021c4bfd RO |
2738 | @item mips-mips-riscos@var{rev}sysv4 |
2739 | System V.4 configuration for RISC-OS, revision @var{rev}. | |
b8df899a JM |
2740 | |
2741 | @html | |
2742 | </p> | |
2743 | <hr> | |
2744 | @end html | |
021c4bfd RO |
2745 | @item mips-mips-riscos@var{rev}sysv |
2746 | System V.3 configuration for RISC-OS, revision @var{rev}. | |
b8df899a JM |
2747 | @end table |
2748 | ||
2749 | The revision @code{rev} mentioned above is the revision of | |
2750 | RISC-OS to use. You must reconfigure GCC when going from a | |
2751 | RISC-OS revision 4 to RISC-OS revision 5. This has the effect of | |
2752 | avoiding a linker bug. | |
2753 | ||
f42974dc DW |
2754 | @html |
2755 | </p> | |
2756 | <hr> | |
f42974dc | 2757 | @end html |
b953cc4b | 2758 | @heading @anchor{mips-sgi-irix4}mips-sgi-irix4 |
f42974dc | 2759 | |
6cfb3f16 | 2760 | In order to compile GCC on an SGI running IRIX 4, the ``c.hdr.lib'' |
b8df899a JM |
2761 | option must be installed from the CD-ROM supplied from Silicon Graphics. |
2762 | This is found on the 2nd CD in release 4.0.1. | |
2763 | ||
213ba345 | 2764 | On IRIX version 4.0.5F, and perhaps on some other versions as well, |
b8df899a JM |
2765 | there is an assembler bug that reorders instructions incorrectly. To |
2766 | work around it, specify the target configuration | |
2767 | @samp{mips-sgi-irix4loser}. This configuration inhibits assembler | |
2768 | optimization. | |
2769 | ||
2770 | In a compiler configured with target @samp{mips-sgi-irix4}, you can turn | |
6cfb3f16 JM |
2771 | off assembler optimization by using the @option{-noasmopt} option. This |
2772 | compiler option passes the option @option{-O0} to the assembler, to | |
b8df899a JM |
2773 | inhibit reordering. |
2774 | ||
6cfb3f16 | 2775 | The @option{-noasmopt} option can be useful for testing whether a problem |
b8df899a | 2776 | is due to erroneous assembler reordering. Even if a problem does not go |
6cfb3f16 | 2777 | away with @option{-noasmopt}, it may still be due to assembler |
f0523f02 | 2778 | reordering---perhaps GCC itself was miscompiled as a result. |
b8df899a | 2779 | |
213ba345 RO |
2780 | You may get the following warning on IRIX 4 platforms, it can be safely |
2781 | ignored. | |
2782 | @example | |
2783 | warning: foo.o does not have gp tables for all its sections. | |
2784 | @end example | |
b8df899a | 2785 | |
213ba345 RO |
2786 | @html |
2787 | </p> | |
2788 | <hr> | |
2789 | @end html | |
b953cc4b RO |
2790 | @heading @anchor{mips-sgi-irix5}mips-sgi-irix5 |
2791 | ||
2792 | This configuration has considerable problems, which will be fixed in a | |
2793 | future release. | |
f42974dc | 2794 | |
213ba345 RO |
2795 | In order to compile GCC on an SGI running IRIX 5, the ``compiler_dev.hdr'' |
2796 | subsystem must be installed from the IDO CD-ROM supplied by Silicon | |
2797 | Graphics. It is also available for download from | |
2798 | @uref{http://www.sgi.com/developers/devtools/apis/ido.html,,http://www.sgi.com/developers/devtools/apis/ido.html}. | |
f42974dc | 2799 | |
213ba345 RO |
2800 | @code{make compare} may fail on version 5 of IRIX unless you add |
2801 | @option{-save-temps} to @code{CFLAGS}. On these systems, the name of the | |
2802 | assembler input file is stored in the object file, and that makes | |
2803 | comparison fail if it differs between the @code{stage1} and | |
2804 | @code{stage2} compilations. The option @option{-save-temps} forces a | |
2805 | fixed name to be used for the assembler input file, instead of a | |
2806 | randomly chosen name in @file{/tmp}. Do not add @option{-save-temps} | |
2807 | unless the comparisons fail without that option. If you do you | |
2808 | @option{-save-temps}, you will have to manually delete the @samp{.i} and | |
2809 | @samp{.s} files after each series of compilations. | |
f42974dc | 2810 | |
213ba345 RO |
2811 | If you use the MIPS C compiler to bootstrap, it may be necessary |
2812 | to increase its table size for switch statements with the | |
2813 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
2814 | optimization option, you also need to use @option{-Olimit 3000}. | |
f42974dc | 2815 | |
b953cc4b RO |
2816 | To enable debugging under IRIX 5, you must use GNU @command{as} 2.11.2 |
2817 | or later, | |
213ba345 RO |
2818 | and use the @option{--with-gnu-as} configure option when configuring GCC. |
2819 | GNU @command{as} is distributed as part of the binutils package. | |
b953cc4b RO |
2820 | When using release 2.11.2, you need to apply a patch |
2821 | @uref{http://sources.redhat.com/ml/binutils/2001-07/msg00352.html,,http://sources.redhat.com/ml/binutils/2001-07/msg00352.html} | |
2822 | which will be included in the next release of binutils. | |
f42974dc | 2823 | |
213ba345 RO |
2824 | When building GCC, the build process loops rebuilding @command{cc1} over |
2825 | and over again. This happens on @samp{mips-sgi-irix5.2}, and possibly | |
2826 | other platforms. It has been reported that this is a known bug in the | |
2827 | @command{make} shipped with IRIX 5.2. We recommend you use GNU | |
2828 | @command{make} instead of the vendor supplied @command{make} program; | |
2829 | however, you may have success with @command{smake} on IRIX 5.2 if you do | |
2830 | not have GNU @command{make} available. | |
f42974dc DW |
2831 | |
2832 | @html | |
2833 | </p> | |
2834 | <hr> | |
f42974dc | 2835 | @end html |
b953cc4b | 2836 | @heading @anchor{mips-sgi-irix6}mips-sgi-irix6 |
f42974dc | 2837 | |
213ba345 | 2838 | If you are using IRIX @command{cc} as your bootstrap compiler, you must |
f42974dc DW |
2839 | ensure that the N32 ABI is in use. To test this, compile a simple C |
2840 | file with @command{cc} and then run @command{file} on the | |
2841 | resulting object file. The output should look like: | |
2842 | ||
2843 | @example | |
213ba345 | 2844 | test.o: ELF N32 MSB @dots{} |
f42974dc DW |
2845 | @end example |
2846 | ||
2847 | If you see: | |
213ba345 RO |
2848 | |
2849 | @example | |
2850 | test.o: ELF 32-bit MSB @dots{} | |
2851 | @end example | |
2852 | ||
2853 | or | |
2854 | ||
f42974dc | 2855 | @example |
213ba345 | 2856 | test.o: ELF 64-bit MSB @dots{} |
f42974dc DW |
2857 | @end example |
2858 | ||
213ba345 | 2859 | then your version of @command{cc} uses the O32 or N64 ABI by default. You |
38209993 | 2860 | should set the environment variable @env{CC} to @samp{cc -n32} |
161d7b59 | 2861 | before configuring GCC@. |
f42974dc | 2862 | |
213ba345 RO |
2863 | GCC on IRIX 6 is usually built to support both the N32 and N64 ABIs. If |
2864 | you build GCC on a system that doesn't have the N64 libraries installed, | |
2865 | you need to configure with @option{--disable-multilib} so GCC doesn't | |
2866 | try to use them. Look for @file{/usr/lib64/libc.so.1} to see if you | |
2867 | have the 64-bit libraries installed. | |
2868 | ||
2869 | You must @emph{not} use GNU @command{as} (which isn't built anyway as of | |
2870 | binutils 2.11.2) on IRIX 6 platforms; doing so will only cause problems. | |
2871 | ||
f42974dc | 2872 | GCC does not currently support generating O32 ABI binaries in the |
b953cc4b | 2873 | @samp{mips-sgi-irix6} configurations. It is possible to create a GCC |
213ba345 | 2874 | with O32 ABI only support by configuring it for the @samp{mips-sgi-irix5} |
b953cc4b RO |
2875 | target and using a patched GNU @command{as} 2.11.2 as documented in the |
2876 | @uref{#mips-sgi-irix5,,@samp{mips-sgi-irix5}} section above. Using the | |
2877 | native assembler requires patches to GCC which will be included in a | |
2878 | future release. It is | |
213ba345 | 2879 | expected that O32 ABI support will be available again in a future release. |
f42974dc | 2880 | |
b953cc4b RO |
2881 | The @option{--enable-threads} option doesn't currently work, a patch is |
2882 | in preparation for a future release. The @option{--enable-libgcj} | |
2883 | option is disabled by default: IRIX 6 uses a very low default limit | |
2884 | (20480) for the command line length. Although libtool contains a | |
2885 | workaround for this problem, at least the N64 @samp{libgcj} is known not | |
2886 | to build despite this, running into an internal error of the native | |
2887 | @command{ld}. A sure fix is to increase this limit (@samp{ncargs}) to | |
2888 | its maximum of 262144 bytes. If you have root access, you can use the | |
2889 | @command{systune} command to do this. | |
2890 | ||
f42974dc | 2891 | GCC does not correctly pass/return structures which are |
767094dd JM |
2892 | smaller than 16 bytes and which are not 8 bytes. The problem is very |
2893 | involved and difficult to fix. It affects a number of other targets also, | |
f42974dc | 2894 | but IRIX 6 is affected the most, because it is a 64 bit target, and 4 byte |
767094dd | 2895 | structures are common. The exact problem is that structures are being padded |
e979f9e8 | 2896 | at the wrong end, e.g.@: a 4 byte structure is loaded into the lower 4 bytes |
f42974dc DW |
2897 | of the register when it should be loaded into the upper 4 bytes of the |
2898 | register. | |
2899 | ||
2900 | GCC is consistent with itself, but not consistent with the SGI C compiler | |
2901 | (and the SGI supplied runtime libraries), so the only failures that can | |
2902 | happen are when there are library functions that take/return such | |
213ba345 RO |
2903 | structures. There are very few such library functions. Currently this |
2904 | is known to affect @code{inet_ntoa}, @code{inet_lnaof}, | |
46d2e8d7 RO |
2905 | @code{inet_netof}, @code{inet_makeaddr}, and @code{semctl}. Until the |
2906 | bug is fixed, GCC contains workarounds for the known affected functions. | |
f42974dc | 2907 | |
3aa8219e GP |
2908 | See @uref{http://freeware.sgi.com/,,http://freeware.sgi.com/} for more |
2909 | information about using GCC on IRIX platforms. | |
f42974dc | 2910 | |
b8df899a JM |
2911 | @html |
2912 | </p> | |
2913 | <hr> | |
2914 | @end html | |
2915 | @heading @anchor{mips-sony-sysv}mips-sony-sysv | |
161d7b59 JM |
2916 | Sony MIPS NEWS@. This works in NEWSOS 5.0.1, but not in 5.0.2 (which |
2917 | uses ELF instead of COFF)@. Support for 5.0.2 will probably be provided | |
b8df899a JM |
2918 | soon by volunteers. In particular, the linker does not like the |
2919 | code generated by GCC when shared libraries are linked in. | |
2920 | ||
2921 | ||
2922 | @html | |
2923 | </p> | |
2924 | <hr> | |
2925 | @end html | |
2926 | @heading @anchor{ns32k-encore}ns32k-encore | |
161d7b59 | 2927 | Encore ns32000 system. Encore systems are supported only under BSD@. |
b8df899a JM |
2928 | |
2929 | @html | |
2930 | </p> | |
2931 | <hr> | |
2932 | @end html | |
2933 | @heading @anchor{ns32k-*-genix}ns32k-*-genix | |
2934 | National Semiconductor ns32000 system. Genix has bugs in @code{alloca} | |
2935 | and @code{malloc}; you must get the compiled versions of these from GNU | |
2936 | Emacs. | |
2937 | ||
2938 | @html | |
2939 | </p> | |
2940 | <hr> | |
2941 | @end html | |
2942 | @heading @anchor{ns32k-sequent}ns32k-sequent | |
2943 | Go to the Berkeley universe before compiling. | |
2944 | ||
2945 | @html | |
2946 | </p> | |
2947 | <hr> | |
2948 | @end html | |
2949 | @heading @anchor{ns32k-utek}ns32k-utek | |
2950 | UTEK ns32000 system (``merlin''). The C compiler that comes with this | |
f0523f02 JM |
2951 | system cannot compile GCC; contact @samp{tektronix!reed!mason} to get |
2952 | binaries of GCC for bootstrapping. | |
b8df899a JM |
2953 | |
2954 | ||
b8df899a JM |
2955 | @html |
2956 | </p> | |
2957 | <hr> | |
2958 | @end html | |
021c4bfd | 2959 | @heading @anchor{powerpc*-*-*}powerpc-*-* |
b8df899a | 2960 | |
6cfb3f16 JM |
2961 | You can specify a default version for the @option{-mcpu=@var{cpu_type}} |
2962 | switch by using the configure option @option{--with-cpu-@var{cpu_type}}. | |
b8df899a | 2963 | |
4f2b1139 SS |
2964 | @html |
2965 | </p> | |
2966 | <hr> | |
2967 | @end html | |
2968 | @heading @anchor{powerpc-*-darwin*}powerpc-*-darwin* | |
2969 | PowerPC running Darwin (Mac OS X kernel). | |
2970 | ||
2971 | GCC 3.0 does not support Darwin, but 3.1 and later releases will work. | |
2972 | ||
2973 | Pre-installed versions of Mac OS X may not include any developer tools, | |
2974 | meaning that you will not be able to build GCC from source. Tool | |
2975 | binaries are available at | |
2976 | @uref{http://www.opensource.apple.com/projects/darwin} (free | |
2977 | registration required). | |
2978 | ||
2979 | Versions of the assembler prior to ``cctools-364'' cannot handle the | |
2980 | 4-argument form of rlwinm and related mask-using instructions. Darwin | |
2981 | 1.3 (Mac OS X 10.0) uses cctools-353 for instance. To get cctools-364, | |
2982 | check out @file{cctools} with tag @samp{Apple-364}, build it, and | |
2983 | install the assembler as @file{usr/bin/as}. See | |
2984 | @uref{http://www.opensource.apple.com/tools/cvs/docs.html} for details. | |
2985 | ||
2986 | Also, the default stack limit of 512K is too small, and a bootstrap will | |
2987 | typically fail when self-compiling @file{expr.c}. Set the stack to 800K | |
2988 | or more, for instance by doing @samp{limit stack 800}. It's also | |
2989 | convenient to use the GNU preprocessor instead of Apple's during the | |
2990 | first stage of bootstrapping; this is automatic when doing @samp{make | |
2991 | bootstrap}, but to do it from the toplevel objdir you will need to say | |
2992 | @samp{make CC='cc -no-cpp-precomp' bootstrap}. | |
2993 | ||
2994 | Note that the version of GCC shipped by Apple typically includes a | |
2995 | number of extensions not available in a standard GCC release. These | |
2996 | extensions are generally specific to Mac programming. | |
2997 | ||
021c4bfd RO |
2998 | @html |
2999 | </p> | |
3000 | <hr> | |
3001 | @end html | |
3002 | @heading @anchor{powerpc-*-elf}powerpc-*-elf, powerpc-*-sysv4 | |
3003 | PowerPC system in big endian mode, running System V.4. | |
3004 | ||
f42974dc DW |
3005 | @html |
3006 | </p> | |
3007 | <hr> | |
f42974dc | 3008 | @end html |
ef88b07d | 3009 | @heading @anchor{powerpc-*-linux-gnu*}powerpc-*-linux-gnu* |
f42974dc | 3010 | |
f9047ed3 | 3011 | You will need |
021c4bfd | 3012 | @uref{ftp://ftp.varesearch.com/pub/support/hjl/binutils,,binutils 2.9.4.0.8} |
161d7b59 | 3013 | or newer for a working GCC@. It is strongly recommended to recompile binutils |
f42974dc DW |
3014 | if you initially built it with gcc-2.7.2.x. |
3015 | ||
edf1b3f3 AC |
3016 | @html |
3017 | </p> | |
3018 | <hr> | |
3019 | @end html | |
3020 | @heading @anchor{powerpc-*-netbsd*}powerpc-*-netbsd* | |
3021 | PowerPC system in big endian mode running NetBSD@. To build the | |
3022 | documentation you will need Texinfo version 4.0 (NetBSD 1.5.1 included | |
3023 | Texinfo version 3.12). | |
3024 | ||
b8df899a JM |
3025 | @html |
3026 | </p> | |
3027 | <hr> | |
3028 | @end html | |
3029 | @heading @anchor{powerpc-*-eabiaix}powerpc-*-eabiaix | |
6cfb3f16 | 3030 | Embedded PowerPC system in big endian mode with @option{-mcall-aix} selected as |
b8df899a JM |
3031 | the default. |
3032 | ||
b8df899a JM |
3033 | @html |
3034 | </p> | |
3035 | <hr> | |
3036 | @end html | |
3037 | @heading @anchor{powerpc-*-eabisim}powerpc-*-eabisim | |
3038 | Embedded PowerPC system in big endian mode for use in running under the | |
3039 | PSIM simulator. | |
3040 | ||
b8df899a JM |
3041 | @html |
3042 | </p> | |
3043 | <hr> | |
3044 | @end html | |
3045 | @heading @anchor{powerpc-*-eabi}powerpc-*-eabi | |
3046 | Embedded PowerPC system in big endian mode. | |
3047 | ||
b8df899a JM |
3048 | @html |
3049 | </p> | |
3050 | <hr> | |
3051 | @end html | |
3052 | @heading @anchor{powerpcle-*-elf}powerpcle-*-elf, powerpcle-*-sysv4 | |
3053 | PowerPC system in little endian mode, running System V.4. | |
3054 | ||
b8df899a JM |
3055 | @html |
3056 | </p> | |
3057 | <hr> | |
3058 | @end html | |
3059 | @heading @anchor{powerpcle-*-eabisim}powerpcle-*-eabisim | |
3060 | Embedded PowerPC system in little endian mode for use in running under | |
3061 | the PSIM simulator. | |
3062 | ||
3063 | @html | |
3064 | </p> | |
3065 | <hr> | |
3066 | @end html | |
3067 | @heading @anchor{powerpcle-*-eabi}powerpcle-*-eabi | |
3068 | Embedded PowerPC system in little endian mode. | |
3069 | ||
b8df899a JM |
3070 | @html |
3071 | </p> | |
3072 | <hr> | |
3073 | @end html | |
3074 | @heading @anchor{powerpcle-*-winnt}powerpcle-*-winnt, powerpcle-*-pe | |
161d7b59 | 3075 | PowerPC system in little endian mode running Windows NT@. |
b8df899a | 3076 | |
b8df899a JM |
3077 | @html |
3078 | </p> | |
3079 | <hr> | |
3080 | @end html | |
3081 | @heading @anchor{romp-*-aos}romp-*-aos, romp-*-mach | |
3082 | The only operating systems supported for the IBM RT PC are AOS and | |
161d7b59 | 3083 | MACH@. GCC does not support AIX running on the RT@. We recommend you |
f0523f02 | 3084 | compile GCC with an earlier version of itself; if you compile GCC |
021c4bfd | 3085 | with @command{hc}, the Metaware compiler, it will work, but you will get |
b8df899a JM |
3086 | mismatches between the stage 2 and stage 3 compilers in various files. |
3087 | These errors are minor differences in some floating-point constants and | |
3088 | can be safely ignored; the stage 3 compiler is correct. | |
f42974dc | 3089 | |
91abf72d HP |
3090 | @html |
3091 | </p> | |
3092 | <hr> | |
3093 | @end html | |
3094 | @heading @anchor{s390-*-linux*}s390-*-linux* | |
3095 | S/390 system running Linux for S/390@. | |
3096 | ||
3097 | @html | |
3098 | </p> | |
3099 | <hr> | |
3100 | @end html | |
3101 | @heading @anchor{s390x-*-linux*}s390x-*-linux* | |
3102 | zSeries system (64 Bit) running Linux for zSeries@. | |
3103 | ||
f42974dc DW |
3104 | @html |
3105 | </p> | |
3106 | <hr> | |
f42974dc | 3107 | @end html |
ef88b07d | 3108 | @heading @anchor{*-*-solaris*}*-*-solaris* |
f42974dc | 3109 | |
dbd210ef KC |
3110 | Sun does not ship a C compiler with Solaris. To bootstrap and install |
3111 | GCC you first have to install a pre-built compiler, see our | |
3112 | @uref{binaries.html,,binaries page} for details. | |
f42974dc | 3113 | |
021c4bfd RO |
3114 | Solaris' @file{/bin/sh} will often fail to configure @file{libstdc++-v3}, @file{boehm-gc} or |
3115 | @file{libjava}. If you encounter this problem, set @env{CONFIG_SHELL} to | |
dbd210ef | 3116 | @file{/bin/ksh} in your environment and run @command{make bootstrap} again. |
37324a54 GP |
3117 | Another possibility that sometimes helps is to remove |
3118 | @file{*-*-solaris*/config.cache}. | |
e6855a2d | 3119 | |
b8df899a | 3120 | Solaris 2 comes with a number of optional OS packages. Some of these |
dbd210ef KC |
3121 | packages are needed to use GCC fully, namely @code{SUNWarc}, |
3122 | @code{SUNWbtool}, @code{SUNWesu}, @code{SUNWhea}, @code{SUNWlibm}, | |
3123 | @code{SUNWsprot}, and @code{SUNWtoo}. If you did not install all | |
b8df899a JM |
3124 | optional packages when installing Solaris, you will need to verify that |
3125 | the packages that GCC needs are installed. | |
3126 | ||
3127 | To check whether an optional package is installed, use | |
dbd210ef KC |
3128 | the @command{pkginfo} command. To add an optional package, use the |
3129 | @command{pkgadd} command. For further details, see the Solaris | |
b8df899a JM |
3130 | documentation. |
3131 | ||
dbd210ef | 3132 | On some versions of Solaris, trying to use the linker and other tools in |
b8df899a JM |
3133 | @file{/usr/ucb} to install GCC has been observed to cause trouble. |
3134 | For example, the linker may hang indefinitely. The fix is to remove | |
3135 | @file{/usr/ucb} from your @code{PATH}. | |
f42974dc | 3136 | |
021c4bfd RO |
3137 | All releases of GNU binutils prior to 2.11.2 have known bugs on this |
3138 | platform. We recommend the use of GNU binutils 2.11.2 or the vendor | |
3139 | tools (Sun @command{as}, Sun @command{ld}). | |
f42974dc | 3140 | |
021c4bfd RO |
3141 | Unfortunately, C++ shared libraries, including @samp{libstdc++}, won't work |
3142 | properly if assembled with Sun @command{as}: the linker will complain about | |
f42974dc | 3143 | relocations in read-only sections, in the definition of virtual |
021c4bfd | 3144 | tables. Also, Sun @command{as} fails to process long symbols resulting from |
f42974dc DW |
3145 | mangling template-heavy C++ function names. |
3146 | ||
dbd210ef KC |
3147 | @html |
3148 | </p> | |
3149 | <hr> | |
3150 | @end html | |
3151 | @heading @anchor{sparc-sun-solaris*}sparc-sun-solaris* | |
3152 | ||
3153 | Sun @command{as} 4.X is broken in that it cannot cope with long symbol names. | |
3154 | A typical error message might look similar to the following: | |
3155 | ||
3156 | @samp{/usr/ccs/bin/as: "/var/tmp/ccMsw135.s", line 11041: | |
3157 | error: can't compute value of an expression involving an external symbol.} | |
3158 | ||
3159 | This is Sun bug 4237974. This is fixed with patch 108908-02 and has | |
3160 | been fixed in later (5.x) versions of the assembler. | |
3161 | ||
f42974dc DW |
3162 | @html |
3163 | </p> | |
3164 | <hr> | |
f42974dc | 3165 | @end html |
ef88b07d | 3166 | @heading @anchor{sparc-sun-solaris2.7}sparc-sun-solaris2.7 |
f42974dc DW |
3167 | |
3168 | Sun patch 107058-01 (1999-01-13) for SPARC Solaris 7 triggers a bug in | |
3169 | the dynamic linker. This problem (Sun bug 4210064) affects GCC 2.8 | |
3170 | and later, including all EGCS releases. Sun formerly recommended | |
3171 | 107058-01 for all Solaris 7 users, but around 1999-09-01 it started to | |
3172 | recommend it only for people who use Sun's compilers. | |
f9047ed3 | 3173 | |
f42974dc DW |
3174 | Here are some workarounds to this problem: |
3175 | @itemize @bullet | |
3176 | @item | |
3177 | Do not install Sun patch 107058-01 until after Sun releases a | |
3178 | complete patch for bug 4210064. This is the simplest course to take, | |
3179 | unless you must also use Sun's C compiler. Unfortunately 107058-01 | |
3180 | is preinstalled on some new Solaris-based hosts, so you may have to | |
3181 | back it out. | |
f9047ed3 | 3182 | |
f42974dc DW |
3183 | @item |
3184 | Copy the original, unpatched Solaris 7 | |
3185 | @command{/usr/ccs/bin/as} into | |
021c4bfd | 3186 | @command{/usr/local/lib/gcc-lib/sparc-sun-solaris2.7/3.0/as}, |
f42974dc DW |
3187 | adjusting the latter name to fit your local conventions and software |
3188 | version numbers. | |
3189 | ||
3190 | @item | |
3191 | Install Sun patch 106950-03 (1999-05-25) or later. Nobody with | |
3192 | both 107058-01 and 106950-03 installed has reported the bug with GCC | |
3193 | and Sun's dynamic linker. This last course of action is riskiest, | |
3194 | for two reasons. First, you must install 106950 on all hosts that | |
3195 | run code generated by GCC; it doesn't suffice to install it only on | |
3196 | the hosts that run GCC itself. Second, Sun says that 106950-03 is | |
3197 | only a partial fix for bug 4210064, but Sun doesn't know whether the | |
161d7b59 | 3198 | partial fix is adequate for GCC@. Revision -08 or later should fix |
f42974dc | 3199 | the bug, but (as of 1999-10-06) it is still being tested. |
f9047ed3 | 3200 | @end itemize |
f42974dc DW |
3201 | |
3202 | ||
3203 | @html | |
3204 | <p> | |
3205 | <hr> | |
f42974dc DW |
3206 | <!-- ripped from the same FAQ that I answered --> |
3207 | @end html | |
ef88b07d | 3208 | @heading @anchor{*-sun-solaris2.8}*-sun-solaris2.8 |
f42974dc DW |
3209 | |
3210 | Sun bug 4296832 turns up when compiling X11 headers with GCC 2.95 or | |
6cfb3f16 JM |
3211 | newer: @command{g++} will complain that types are missing. These headers assume |
3212 | that omitting the type means @code{int}; this assumption worked for C89 but | |
f42974dc DW |
3213 | is wrong for C++, and is now wrong for C99 also. |
3214 | ||
6cfb3f16 JM |
3215 | @command{g++} accepts such (illegal) constructs with the option @option{-fpermissive}; it |
3216 | will assume that any missing type is @code{int} (as defined by C89). | |
f42974dc | 3217 | |
9a3db543 | 3218 | For Solaris 8, this is fixed by revision 24 or later of patch 108652 |
f42974dc DW |
3219 | (for SPARCs) or 108653 (for Intels). |
3220 | ||
021c4bfd | 3221 | Solaris 8's linker fails to link some @samp{libjava} programs if |
0e96b203 | 3222 | previously-installed GCC java libraries already exist in the configured |
021c4bfd RO |
3223 | prefix. For this reason, @samp{libgcj} is disabled by default on Solaris 8. |
3224 | If you use GNU ld, or if you don't have a previously-installed @samp{libgcj} in | |
0e96b203 AO |
3225 | the same prefix, use @option{--enable-libgcj} to build and install the |
3226 | Java libraries. | |
f42974dc DW |
3227 | |
3228 | @html | |
3229 | <p> | |
3230 | <hr> | |
f42974dc | 3231 | @end html |
ef88b07d | 3232 | @heading @anchor{sparc-sun-sunos*}sparc-sun-sunos* |
f42974dc | 3233 | |
021c4bfd | 3234 | A bug in the SunOS 4 linker will cause it to crash when linking |
6cfb3f16 | 3235 | @option{-fPIC} compiled objects (and will therefore not allow you to build |
f42974dc DW |
3236 | shared libraries). |
3237 | ||
3238 | To fix this problem you can either use the most recent version of | |
021c4bfd | 3239 | binutils or get the latest SunOS 4 linker patch (patch ID 100170-10) |
f42974dc DW |
3240 | from Sun's patch site. |
3241 | ||
dbd210ef KC |
3242 | Sometimes on a Sun 4 you may observe a crash in the program |
3243 | @command{genflags} or @command{genoutput} while building GCC. This is said to | |
3244 | be due to a bug in @command{sh}. You can probably get around it by running | |
3245 | @command{genflags} or @command{genoutput} manually and then retrying the | |
3246 | @command{make}. | |
f42974dc DW |
3247 | |
3248 | @html | |
3249 | </p> | |
3250 | <hr> | |
f42974dc | 3251 | @end html |
ef88b07d | 3252 | @heading @anchor{sparc-unknown-linux-gnulibc1}sparc-unknown-linux-gnulibc1 |
f42974dc | 3253 | |
f9047ed3 | 3254 | It has been reported that you might need |
021c4bfd | 3255 | @uref{ftp://ftp.yggdrasil.com/private/hjl,,binutils 2.8.1.0.23} |
f42974dc DW |
3256 | for this platform, too. |
3257 | ||
3258 | ||
3259 | @html | |
3260 | </p> | |
3261 | <hr> | |
f42974dc | 3262 | @end html |
ef88b07d | 3263 | @heading @anchor{sparc64-*-*}sparc64-*-* |
f42974dc DW |
3264 | |
3265 | GCC version 2.95 is not able to compile code correctly for | |
3266 | @code{sparc64} targets. Users of the Linux kernel, at least, | |
e9d21442 | 3267 | can use the @code{sparc32} program to start up a new shell |
f42974dc | 3268 | invocation with an environment that causes @command{configure} to |
021c4bfd | 3269 | recognize (via @samp{uname -a}) the system as @samp{sparc-*-*} instead. |
f42974dc DW |
3270 | |
3271 | ||
b8df899a JM |
3272 | @html |
3273 | </p> | |
3274 | <hr> | |
3275 | @end html | |
3276 | @heading @anchor{#*-*-sysv*}*-*-sysv* | |
3277 | On System V release 3, you may get this error message | |
3278 | while linking: | |
3279 | ||
3280 | @smallexample | |
3281 | ld fatal: failed to write symbol name @var{something} | |
3282 | in strings table for file @var{whatever} | |
3283 | @end smallexample | |
3284 | ||
021c4bfd | 3285 | This probably indicates that the disk is full or your ulimit won't allow |
b8df899a JM |
3286 | the file to be as large as it needs to be. |
3287 | ||
3288 | This problem can also result because the kernel parameter @code{MAXUMEM} | |
3289 | is too small. If so, you must regenerate the kernel and make the value | |
3290 | much larger. The default value is reported to be 1024; a value of 32768 | |
3291 | is said to work. Smaller values may also work. | |
3292 | ||
3293 | On System V, if you get an error like this, | |
3294 | ||
3295 | @example | |
3296 | /usr/local/lib/bison.simple: In function `yyparse': | |
3297 | /usr/local/lib/bison.simple:625: virtual memory exhausted | |
3298 | @end example | |
3299 | ||
3300 | @noindent | |
021c4bfd | 3301 | that too indicates a problem with disk space, ulimit, or @code{MAXUMEM}. |
b8df899a | 3302 | |
f85b8d1a JM |
3303 | On a System V release 4 system, make sure @file{/usr/bin} precedes |
3304 | @file{/usr/ucb} in @code{PATH}. The @code{cc} command in | |
3305 | @file{/usr/ucb} uses libraries which have bugs. | |
b8df899a JM |
3306 | |
3307 | @html | |
3308 | </p> | |
3309 | <hr> | |
3310 | @end html | |
3311 | @heading @anchor{vax-dec-ultrix}vax-dec-ultrix | |
8aeea6e6 | 3312 | Don't try compiling with VAX C (@code{vcc}). It produces incorrect code |
b8df899a JM |
3313 | in some cases (for example, when @code{alloca} is used). |
3314 | ||
b8df899a JM |
3315 | @html |
3316 | </p> | |
3317 | <hr> | |
3318 | @end html | |
3319 | @heading @anchor{we32k-*-*}we32k-*-* | |
3320 | These computers are also known as the 3b2, 3b5, 3b20 and other similar | |
3321 | names. (However, the 3b1 is actually a 68000.) | |
3322 | ||
6cfb3f16 | 3323 | Don't use @option{-g} when compiling with the system's compiler. The |
b8df899a JM |
3324 | system's linker seems to be unable to handle such a large program with |
3325 | debugging information. | |
3326 | ||
3327 | The system's compiler runs out of capacity when compiling @file{stmt.c} | |
161d7b59 | 3328 | in GCC@. You can work around this by building @file{cpp} in GCC |
b8df899a JM |
3329 | first, then use that instead of the system's preprocessor with the |
3330 | system's C compiler to compile @file{stmt.c}. Here is how: | |
3331 | ||
3332 | @smallexample | |
3333 | mv /lib/cpp /lib/cpp.att | |
3334 | cp cpp /lib/cpp.gnu | |
3335 | echo '/lib/cpp.gnu -traditional $@{1+"$@@"@}' > /lib/cpp | |
3336 | chmod +x /lib/cpp | |
3337 | @end smallexample | |
3338 | ||
f0523f02 | 3339 | The system's compiler produces bad code for some of the GCC |
b8df899a JM |
3340 | optimization files. So you must build the stage 2 compiler without |
3341 | optimization. Then build a stage 3 compiler with optimization. | |
3342 | That executable should work. Here are the necessary commands: | |
3343 | ||
3344 | @smallexample | |
3345 | make LANGUAGES=c CC=stage1/xgcc CFLAGS="-Bstage1/ -g" | |
3346 | make stage2 | |
3347 | make CC=stage2/xgcc CFLAGS="-Bstage2/ -g -O" | |
3348 | @end smallexample | |
3349 | ||
3350 | You may need to raise the ULIMIT setting to build a C++ compiler, | |
3351 | as the file @file{cc1plus} is larger than one megabyte. | |
3352 | ||
f42974dc DW |
3353 | @html |
3354 | </p> | |
3355 | <hr> | |
f42974dc | 3356 | @end html |
ef88b07d | 3357 | @heading @anchor{windows}Microsoft Windows (32 bit) |
f42974dc | 3358 | |
f9047ed3 | 3359 | A port of GCC 2.95.x is included with the |
f42974dc DW |
3360 | @uref{http://www.cygwin.com/,,Cygwin environment}. |
3361 | ||
3362 | Current (as of early 2001) snapshots of GCC will build under Cygwin | |
3363 | without modification. | |
3364 | ||
3365 | @html | |
3366 | </p> | |
3367 | <hr> | |
f42974dc | 3368 | @end html |
ef88b07d | 3369 | @heading @anchor{os2}OS/2 |
f42974dc DW |
3370 | |
3371 | GCC does not currently support OS/2. However, Andrew Zabolotny has been | |
3372 | working on a generic OS/2 port with pgcc. The current code code can be found | |
3373 | at @uref{http://www.goof.com/pcg/os2/,,http://www.goof.com/pcg/os2/}. | |
3374 | ||
f9047ed3 | 3375 | An older copy of GCC 2.8.1 is included with the EMX tools available at |
f42974dc DW |
3376 | @uref{ftp://ftp.leo.org/pub/comp/os/os2/leo/devtools/emx+gcc/,, |
3377 | ftp://ftp.leo.org/pub/comp/os/os2/leo/devtools/emx+gcc/}. | |
3378 | ||
3379 | @html | |
3380 | </p> | |
3381 | <hr> | |
f42974dc | 3382 | @end html |
ef88b07d | 3383 | @heading @anchor{older}Older systems |
f9047ed3 JM |
3384 | |
3385 | GCC contains support files for many older (1980s and early | |
3386 | 1990s) Unix variants. For the most part, support for these systems | |
3387 | has not been deliberately removed, but it has not been maintained for | |
3388 | several years and may suffer from bitrot. Support from some systems | |
3389 | has been removed from GCC 3: fx80, ns32-ns-genix, pyramid, tahoe, | |
3390 | gmicro, spur; most of these targets had not been updated since GCC | |
f42974dc | 3391 | version 1. |
f9047ed3 JM |
3392 | |
3393 | Support for older systems as targets for cross-compilation is less | |
3394 | problematic than support for them as hosts for GCC; if an enthusiast | |
3395 | wishes to make such a target work again (including resurrecting any | |
3396 | of the targets that never worked with GCC 2, starting from the last | |
3397 | CVS version before they were removed), patches | |
3398 | @uref{../contribute.html,,following the usual requirements} | |
3399 | would be likely to be accepted, since they should not affect the | |
f42974dc | 3400 | support for more modern targets. |
f9047ed3 JM |
3401 | |
3402 | Support for old systems as hosts for GCC can cause problems if the | |
3403 | workarounds for compiler, library and operating system bugs affect the | |
161d7b59 | 3404 | cleanliness or maintainability of the rest of GCC@. In some cases, to |
f9047ed3 JM |
3405 | bring GCC up on such a system, if still possible with current GCC, may |
3406 | require first installing an old version of GCC which did work on that | |
3407 | system, and using it to compile a more recent GCC, to avoid bugs in | |
3408 | the vendor compiler. Old releases of GCC 1 and GCC 2 are available in | |
021c4bfd | 3409 | the @file{old-releases} directory on the |
f9047ed3 | 3410 | @uref{../mirrors.html,,GCC mirror sites}. Header bugs may generally |
38209993 LG |
3411 | be avoided using @command{fixincludes}, but bugs or deficiencies in |
3412 | libraries and the operating system may still cause problems. | |
f9047ed3 JM |
3413 | |
3414 | For some systems, old versions of GNU binutils may also be useful, | |
021c4bfd | 3415 | and are available from @file{pub/binutils/old-releases} on |
f42974dc | 3416 | @uref{http://sources.redhat.com/mirrors.html,,sources.redhat.com mirror sites}. |
f9047ed3 JM |
3417 | |
3418 | Some of the information on specific systems above relates to | |
3419 | such older systems, but much of the information | |
3420 | about GCC on such systems (which may no longer be applicable to | |
f42974dc | 3421 | current GCC) is to be found in the GCC texinfo manual. |
f9047ed3 | 3422 | |
f42974dc DW |
3423 | @html |
3424 | </p> | |
3425 | <hr> | |
f42974dc | 3426 | @end html |
ef88b07d | 3427 | @heading @anchor{elf_targets}all ELF targets (SVR4, Solaris, etc.) |
f42974dc | 3428 | |
38209993 LG |
3429 | C++ support is significantly better on ELF targets if you use the |
3430 | @uref{./configure.html#with-gnu-ld,,GNU linker}; duplicate copies of | |
3431 | inlines, vtables and template instantiations will be discarded | |
3432 | automatically. | |
f42974dc DW |
3433 | |
3434 | ||
3435 | @html | |
3436 | </p> | |
3437 | <hr> | |
3438 | <p> | |
3439 | @end html | |
3440 | @ifhtml | |
3441 | @uref{./index.html,,Return to the GCC Installation page} | |
3442 | @end ifhtml | |
3443 | @end ifset | |
3444 | ||
3445 | @c *************************************************************************** | |
3446 | @c Part 6 The End of the Document | |
3447 | @ifinfo | |
3448 | @comment node-name, next, previous, up | |
3449 | @node Concept Index, , Specific, Top | |
3450 | @end ifinfo | |
3451 | ||
3452 | @ifinfo | |
3453 | @unnumbered Concept Index | |
3454 | ||
3455 | @printindex cp | |
3456 | ||
3457 | @contents | |
3458 | @end ifinfo | |
3459 | @bye |