Annotation of src/BUILDING, Revision 1.34
1.1 tv 1: BUILDING(8) NetBSD System Manager's Manual BUILDING(8)
2:
3: NAME
4: BUILDING - Procedure for building NetBSD from source code.
5:
6: STATUS
7: This document is a work-in-progress. As such, the information described
8: here may not match the reality of the build system as of this writing.
9: Once this document is completely in sync with reality, this paragraph
10: will be removed.
11:
12: Discrepancies between this documentation and the current reality of im-
13: plementation are noted specially, as with the note below:
14:
15: Note: This document applies only to platforms which use the new toolchain
1.15 lukem 16: as indicated by the default setting of TOOLCHAIN_MISSING in <bsd.own.mk>.
1.5 tv 17: Platforms which have not yet been switched to the new toolchain should
18: continue building traditionally, using the notes specified in the file
19: UPDATING.
1.1 tv 20:
21: REQUIREMENTS
22: NetBSD is designed to be buildable on most POSIX-compliant host systems.
23: The basic build procedure is the same whether compiling natively (on the
24: same NetBSD architecture) or cross compiling (on another architecture or
25: OS).
26:
27: This source tree contains a special subtree, ``tools'', which uses the
28: host system to create a build toolchain for the target architecture. The
29: host system must have at least C and C++ compilers in order to create the
30: toolchain (make is not required); all other tools are created as part of
31: the NetBSD build process.
32:
1.22 lukem 33: Note: A couple of host toolchain components are not yet available
34: in the tools directory. Also, some tools use non-POSIX, non-ANSI C
1.1 tv 35: extensions and need to be standardized. As a result, cross-compil-
36: ing from systems other than NetBSD is not currently supported.
37:
38: FILES
39: Source tree layout
40:
1.17 wiz 41: doc/BUILDING.mdoc
42: This document (in -mdoc troff format; the original copy).
1.1 tv 43:
1.2 wiz 44: BUILDING This document (in plaintext).
1.1 tv 45:
46: Makefile The main Makefile for NetBSD; should only be run for na-
47: tive builds with an appropriately up-to-date version of
48: NetBSD make(1). (For building from out-of-date systems or
49: on a non-native host, see the build.sh shell script.)
50:
51: UPDATING Special notes for updating from an earlier revision of
52: NetBSD. It is important to read this file before every
53: build of an updated source tree.
54:
55: build.sh Bourne-compatible shell script used for building the host
56: build tools and the NetBSD system from scratch. Can be
57: used for both native and cross builds, and should be used
58: instead of make(1) for any source tree that is updated and
59: recompiled regularly.
60:
61: crypto/dist/, dist/, gnu/dist/
62: Sources imported verbatim from third parties, without man-
63: gling the existing build structure. Other source trees in
64: bin through usr.sbin use the NetBSD make(1) ``reachover''
65: Makefile semantics when building these programs for a na-
66: tive host.
67:
68: distrib/, etc/
69: Sources for items used when making a full release snap-
1.27 lukem 70: shot, such as files installed in DESTDIR/etc on the desti-
71: nation system, boot media, and release notes.
1.1 tv 72:
73: regress/ Regression test harness. Can be cross-compiled, but only
74: run natively.
75:
76: sys/ NetBSD kernel sources.
77:
78: tools/ ``Reachover'' build structure for the host build tools.
79: This has a special method of determining out-of-date sta-
80: tus.
81:
82: bin/ ... usr.sbin/
83: Sources to the NetBSD userland (non-kernel) programs. If
84: any of these directories are missing, they will be skipped
85: during the build.
86:
87: Build tree layout
88: The NetBSD build tree is described in hier(7), and the release layout is
89: described in release(7).
90:
91: CONFIGURATION
1.8 lukem 92: Environment variables
93: Several environment variables control the behaviour of NetBSD builds.
94:
95: MACHINE Machine type.
96:
97: MACHINE_ARCH Machine architecture.
98:
99: MAKE Path name to invoke make(1) as.
100:
101: MAKEFLAGS Flags to invoke make(1) with.
102:
103: MAKEOBJDIR Directory to use as the .OBJDIR for the current direc-
104: tory. Used only if MAKEOBJDIRPREFIX is not defined.
105: MAKEOBJDIR can only be provided in the environment.
106:
107: MAKEOBJDIRPREFIX Top level directory of the object directory tree. If
108: this is defined, ${MAKEOBJDIRPREFIX}/${.CURDIR} is used
109: as the .OBJDIR for the current directory. The current
110: directory may be read only. MAKEOBJDIRPREFIX can only
111: be provided in the environment.
112:
1.1 tv 113: "make" variables
114: Several variables control the behavior of NetBSD builds. Unless other-
115: wise specified, these variables may be set in either the process environ-
116: ment or the make(1) configuration file specified by MAKECONF.
117:
1.9 thorpej 118: BUILDID Identifier for the build. The identifier will be appended to
119: object directory names, and can be consulted in the make(1)
120: configuration file in order to set additional build parame-
121: ters, such as compiler flags.
122:
1.1 tv 123: DESTDIR Directory to contain the built NetBSD system. If set, spe-
124: cial options are passed to the compilation tools to prevent
125: their default use of the host system's /usr/include,
126: /usr/lib, and so forth. This pathname should not end with a
127: slash (/) character (for installation into the system's root
1.7 lukem 128: directory, set DESTDIR to an empty string). The directory
129: must reside on a file system which supports long file names
130: and hard links.
1.1 tv 131:
132: Default: Empty string if USETOOLS is ``yes''; unset other-
133: wise.
134:
1.30 lukem 135: Note: build.sh will provide a default of destdir.MACHINE (in
136: the top-level .OBJDIR) unless run in `expert' mode
137:
1.1 tv 138: MAKECONF The name of the make(1) configuration file. Only settable in
139: the process environment.
140:
141: Default: ``/etc/mk.conf''
142:
143: MKCATPAGES Can be set to ``yes'' or ``no''. Indicates whether prefor-
144: matted plaintext manual pages will be created during a build.
145:
146: Default: ``yes''
147:
148: MKCRYPTO Can be set to ``yes'' or ``no''. Indicates whether crypto-
149: graphic code will be included in a build; provided for the
150: benefit of countries that do not allow strong cryptography.
151: Will not affect use of the standard low-security password en-
152: cryption system, crypt(3).
153:
154: Default: ``yes''
155:
156: MKDOC Can be set to ``yes'' or ``no''. Indicates whether system
1.27 lukem 157: documentation destined for DESTDIR/usr/share/doc will be in-
158: stalled during a build.
1.1 tv 159:
160: Default: ``yes''
161:
1.4 tv 162: MKHOSTOBJ Can be set to ``yes'' or ``no''. If set to ``yes'', then for
163: programs intended to be run on the compile host, the name,
164: release, and architecture of the host operating system will
165: be suffixed to the name of the object directory created by
166: ``make obj''. (This allows multiple host systems to compile
167: NetBSD for a single target.) If set to ``no'', then programs
168: built to be run on the compile host will use the same object
169: directory names as programs built to be run on the target.
170:
171: Default: ``no''
172:
1.1 tv 173: MKINFO Can be set to ``yes'' or ``no''. Indicates whether GNU Info
174: files, used for the documentation for most of the compilation
175: tools, will be created and installed during a build.
176:
177: Default: ``yes''
178:
179: MKLINT Can be set to ``yes'' or ``no''. Indicates whether lint(1)
180: will be run against portions of the NetBSD source code during
181: the build, and whether lint libraries will be installed into
1.27 lukem 182: DESTDIR/usr/libdata/lint.
1.1 tv 183:
184: Default: ``yes''
185:
186: MKMAN Can be set to ``yes'' or ``no''. Indicates whether manual
187: pages will be installed during a build.
188:
189: Default: ``yes''
190:
191: MKNLS Can be set to ``yes'' or ``no''. Indicates whether Native
192: Language System locale zone files will be compiled and in-
193: stalled during a build.
194:
195: Default: ``yes''
196:
197: MKOBJ Can be set to ``yes'' or ``no''. Indicates whether object
198: directories will be created when running ``make obj''. If
199: set to ``no'', then all built files will be located inside
200: the regular source tree.
201:
202: Default: ``yes''
203:
204: MKPIC Can be set to ``yes'' or ``no''. Indicates whether shared
205: objects and libraries will be created and installed during a
206: build. If set to ``no'', the entire built system will be
207: statically linked.
208:
209: Default: Platform dependent. As of this writing, all plat-
210: forms except sh3 default to ``yes''.
211:
212: MKPICINSTALL
213: Can be set to ``yes'' or ``no''. Indicates whether the ar(1)
214: format libraries (lib*_pic.a), used to generate shared li-
215: braries, are installed during a build.
216:
217: Default: ``yes''
218:
219: MKPROFILE Can be set to ``yes'' or ``no''. Indicates whether profiled
220: libraries (lib*_p.a) will be built and installed during a
221: build.
222:
223: Default: ``yes''; however, some platforms turn off MKPROFILE
224: by default at times due to toolchain problems with profiled
225: code.
226:
227: MKSHARE Can be set to ``yes'' or ``no''. Indicates whether files
1.27 lukem 228: destined to reside in DESTDIR/usr/share will be built and in-
229: stalled during a build. If set to ``no'', then all of
230: MKCATPAGES, MKDOC, MKINFO, MKMAN, and MKNLS will be set to
231: ``no'' unconditionally.
1.1 tv 232:
233: Default: ``yes''
234:
235: TOOLDIR Directory to hold the host tools, once built. This directory
236: should be unique to a given host system and NetBSD source
237: tree. (However, multiple targets may share the same TOOLDIR;
238: the target-dependent files have unique names.) If unset, a
239: default based on the uname(1) information of the host plat-
240: form will be created in the .OBJDIR of src/tools.
241:
242: Default: Unset.
243:
1.7 lukem 244: UNPRIVED If set, then an unprivileged install will occur. The user,
245: group, permissions, and file flags, will not be set on the
246: installed item; instead the information will be appended to a
1.11 lukem 247: file called METALOG in DESTDIR. The contents of METALOG is
248: used during the generation of the distribution tar files to
249: ensure that the appropriate file ownership is stored.
1.7 lukem 250:
251: Default: Unset.
252:
1.1 tv 253: UPDATE If set, then all install operations intended to write to
254: DESTDIR will compare file timestamps before installing, and
255: skip the install phase if the destination files are up-to-
256: date. This also has implications on full builds (see next
257: subsection).
258:
259: Default: Unset.
260:
261: USETOOLS Indicates whether the tools specified by TOOLDIR should be
262: used as part of a build in progress. Must be set to ``yes''
263: if cross-compiling.
264:
265: yes Use the tools from TOOLDIR.
266:
267: no Do not use the tools from TOOLDIR, but refuse to build
268: native compilation tool components that are version-
269: specific for that tool.
270:
271: never Do not use the tools from TOOLDIR, even when building
272: native tool components. This is similar to the tradi-
273: tional NetBSD build method, but does not verify that
274: the compilation tools in use are up-to-date enough in
275: order to build the tree successfully. This may cause
276: build or runtime problems when building the whole
277: NetBSD source tree.
278:
279: Default: ``yes'' if building all or part of a whole NetBSD
280: source tree (detected automatically); ``no'' otherwise (to
281: preserve traditional semantics of the <bsd.*.mk> make(1) in-
282: clude files).
283:
284: "make" variables for full builds
1.7 lukem 285: These variables only affect the top level ``Makefile'' and do not affect
286: manually building subtrees of the NetBSD source code.
1.1 tv 287:
1.20 lukem 288: INSTALLWORLDDIR Location for the ``make installworld'' target to install
289: to.
1.1 tv 290:
1.20 lukem 291: Default: ``/''
1.1 tv 292:
1.20 lukem 293: MKOBJDIRS Can be set to ``yes'' or ``no''. Indicates whether ob-
294: ject directories will be created automatically (via a
295: ``make obj'' pass) at the start of a build.
1.1 tv 296:
1.34 ! lukem 297: Default: ``no''
1.1 tv 298:
1.20 lukem 299: NBUILDJOBS Now obsolete. Use the make(1) option -j, instead (see
300: below)
1.1 tv 301:
1.20 lukem 302: Default: Unset.
1.1 tv 303:
1.20 lukem 304: NOCLEANDIR If set, avoids the ``make cleandir'' phase of a full
305: build. This has the effect of allowing only changed
306: files in a source tree to be recompiled. This can speed
307: up builds when updating only a few files in the tree.
1.1 tv 308:
1.20 lukem 309: Default: Unset.
1.1 tv 310:
1.20 lukem 311: NODISTRIBDIRS If set, avoids the ``make distrib-dirs'' phase of a full
312: build. This skips running mtree(8) on DESTDIR, useful
313: on systems where building as an unprivileged user, or
314: where it is known that the system-wide mtree files have
315: not changed.
1.1 tv 316:
1.20 lukem 317: Default: Unset.
1.1 tv 318:
1.20 lukem 319: NOINCLUDES If set, avoids the ``make includes'' phase of a full
320: build. This has the effect of preventing make(1) from
321: thinking that some programs are out-of-date simply be-
322: cause the system include files have changed. However,
323: this option should not be used when updating the entire
324: NetBSD source tree arbitrarily; it is suggested to use
325: UPDATE in that case.
1.1 tv 326:
1.20 lukem 327: Default: Unset.
1.1 tv 328:
1.20 lukem 329: RELEASEDIR If set, specifies the directory to which a release(7)
330: layout will be written at the end of a ``make release''.
331:
332: Default: Unset.
333:
1.30 lukem 334: Note: build.sh will provide a default of releasedir (in
335: the top-level .OBJDIR) unless run in `expert' mode
336:
1.20 lukem 337: UPDATE If set, then in addition to the effects described for
1.28 lukem 338: UPDATE above, this implies the effects of NOCLEANDIR
339: (i.e., ``make cleandir'' is avoided).
1.1 tv 340:
341: BUILDING
342: "make" command line options
343: This is only a summary of options available to make(1); only the options
344: used most frequently with NetBSD builds are listed here.
345:
1.10 sommerfe 346: -j njob Run up to njob make(1) subjobs in parallel. Makefiles should
347: use .WAIT or have explicit dependancies as necessary to en-
348: force build ordering. If you see build failures with -j,
349: please save complete build logs so the failures can be ana-
350: lyzed.
351:
1.1 tv 352: -m dir Specify the default directory for searching for system Make-
353: file segments, mainly the <bsd.*.mk> files. When building any
354: full NetBSD source tree, this should be set to the
355: ``share/mk'' directory in the source tree. (This is set auto-
356: matically when building from the top level.)
357:
358: -n Display the commands that would have been executed, but do not
359: actually execute them. This will still cause recursion to
360: take place.
361:
362: -v var Print make(1)'s idea of the value of var. Does not build any
363: targets.
364:
365: var=value Set the variable var to value, overriding any setting speci-
366: fied by the process environment, the MAKECONF configuration
367: file, or the system Makefile segments.
368:
369: "make" targets
370: These default targets may be built by running make(1) in any subtree of
371: the NetBSD source code. It is recommended that none of these be used
372: from the top level Makefile; as a specific exception, ``make obj'' and
373: ``make cleandir'' are useful in that context.
374:
375: all Build programs, libraries, and preformatted documentation.
376:
377: clean Remove program and library object code files.
378:
379: cleandir Same as clean, but also remove preformatted documentation, de-
380: pendency files generated by ``make depend'', and any other
381: files known to be created at build time. ``make distclean''
382: may be used as a synonym, for familiarity with a similar well-
383: known convention.
384:
385: depend Create dependency files (.depend) containing more detailed in-
386: formation about the dependencies of source code on header
387: files. Allows programs to be recompiled automatically when a
388: dependency changes.
389:
390: dependall Does a ``make depend'' immediately followed by a ``make all''.
1.10 sommerfe 391: This improves cache locality of the build since both passes
392: read the source files in their entirety.
1.1 tv 393:
394: includes Build and install system header files. Typically needed be-
395: fore any system libraries or programs can be built.
396:
397: install Install programs, libraries, and documentation into DESTDIR.
1.27 lukem 398: Few files will be installed to DESTDIR/dev, DESTDIR/etc,
399: DESTDIR/root or DESTDIR/var in order to prevent user supplied
400: configuration data from being overwritten.
1.1 tv 401:
402: lint Run lint(1) against the C source code, where appropriate, and
403: generate system-installed lint libraries.
404:
405: obj Create object directories to be used for built files, instead
406: of building directly in the source tree.
407:
408: tags Create ctags(1) searchable function lists usable by the ex(1)
409: and vi(1) text editors.
410:
411: "make" targets for the top level
412: Additional make(1) targets are usable specifically from the top source
413: level to facilitate building the entire NetBSD source tree.
414:
1.20 lukem 415: build Build the entire NetBSD system. This orders portions of
416: the source tree such that prerequisites will be built in
417: the proper order.
418:
419: distribution Do a ``make build'', and then install a full distribution
1.27 lukem 420: into DESTDIR, including files in DESTDIR/dev, DESTDIR/etc,
421: DESTDIR/root and DESTDIR/var.
1.20 lukem 422:
423: buildworld As per ``make distribution'', except that it ensures that
424: DESTDIR is not the root directory.
425:
426: installworld Install the distribution from DESTDIR to INSTALLWORLDDIR
427: (which defaults to the root directory). Ensures that
428: INSTALLWORLDDIR is the not root directory if cross compil-
429: ing.
430:
431: Note: It is highly recommended that you upgrade your kernel
432: and reboot before performing this operation.
433:
1.25 lukem 434: sets Create distribution sets from DESTDIR into
435: RELEASEDIR/MACHINE/binary/sets. Should be run after ``make
436: distribution'' (as ``make build'' does not install all of
437: the required files).
438:
1.31 lukem 439: sourcesets Create source sets of the source tree into
440: RELEASEDIR/source/sets.
441:
1.22 lukem 442: release Do a ``make distribution'', build kernels, distribution me-
1.25 lukem 443: dia, and install sets (this as per ``make sets''), and then
444: package the system into a standard release layout as de-
445: scribed by release(7). This requires that RELEASEDIR be
446: set (see above).
1.1 tv 447:
448: regression-tests
1.20 lukem 449: Can only be run after building the regression tests in the
450: directory ``regress''. Runs the compiled regression tests
451: on the local host.
1.1 tv 452:
453: The "build.sh" script
454: This script file is a Bourne shell script designed to build the entire
455: NetBSD system on any host with a Bourne shell in /bin/sh, including many
456: that are not POSIX compliant. Note that if a host system's /bin/sh is
457: unusually old and broken, the Korn Shell (/bin/ksh), if available, may be
458: a usable alternative.
459:
460: All cross-compile builds, and most native builds, of the entire system
461: should make use of build.sh rather than just running ``make''. This way,
462: the make(1) program will be bootstrapped properly, in case the host sys-
463: tem has an older or incompatible ``make'' program.
464:
465: When compiling the entire system via build.sh, many make(1) variables are
466: set for you in order to help encapsulate the build process. In the list
467: of options below, variables that are automatically set by build.sh are
468: noted where applicable.
469:
1.22 lukem 470: The following operations are supported by build.sh:
471:
472: build Build the system as per ``make build''. This option im-
473: plies the obj and tools operations.
474:
475: distribution Build a full distribution as per ``make distribution''.
476: This option implies the build operation.
477:
478: release Build a full release as per ``make release''. This option
479: implies the distribution operation.
480:
1.23 lukem 481: makewrapper Create the nbmake-MACHINE wrapper. This operation is auto-
482: matically performed for any of the other operations.
483:
1.22 lukem 484: obj Perform ``make obj''.
485:
486: tools Build and install the host tools from src/tools.
487:
488: kernel=kconf Build a new kernel. The kconf argument is the name of a
489: configuration file suitable for use by config(8). If kconf
490: does not contain any `/' characters, the configuration file
491: is expected to be found in the KERNCONFDIR directory, which
492: is typically sys/arch/MACHINE/conf. The new kernel will be
493: built in a subdirectory of KERNOBJDIR, which is typically
494: sys/arch/MACHINE/compile or an associated object directory.
495: In order to ensure that the kernel is built using up-to-
496: date tools, it is strongly recommended that the tools be
497: rebuilt (using the tools operation).
498:
499: install=idir Install the contents of DESTDIR to idir, using ``make
500: installworld''.
1.24 lukem 501:
502: sets Perform ``make sets''.
1.31 lukem 503:
504: sourcesets Perform ``make sourcesets''.
1.22 lukem 505:
506: The following command line options alter the behaviour of the above oper-
507: ations: The following command line options alter the behaviour of the
508: build.sh operations described above:
1.1 tv 509:
510: -a arch Set the value of MACHINE_ARCH to arch.
1.9 thorpej 511:
512: -B buildid
513: Set the value of BUILDID to buildid. This will also append the
514: build idenfitier to the name of the ``make'' wrapper script so
515: that the resulting name is of the form ``nbmake-MACHINE-
516: BUILDID''.
1.1 tv 517:
1.18 lukem 518: -D dest Set the value of DESTDIR to dest.
519:
1.23 lukem 520: -E Set `expert' mode. This overrides various sanity checks, and
521: allows: DESTDIR does not have to be set to a non-root path for
522: builds, and UNPRIVED does not have to be set when building as a
523: non-root user.
524:
525: Note: It is highly recommended that you know what you are doing
526: when you use this option.
1.19 lukem 527:
1.10 sommerfe 528: -j njob Passed through to make(1). Makefiles should use .WAIT or have
529: explicit dependancies as necessary to enforce build ordering.
530: If you see build failures with -j, please save complete build
531: logs so the failures can be analyzed.
1.1 tv 532:
1.18 lukem 533: -M obj Set MAKEOBJDIRPREFIX to obj.
534:
1.1 tv 535: -m mach Set the value of MACHINE to mach. This will also override any
536: value of MACHINE_ARCH in the process environment with a value
1.33 lukem 537: deduced from mach, unless -a is specified, or mach is a special
538: case listed below. All cross builds require -m, but if unset
539: on a NetBSD host, the host's value of MACHINE will be detected
540: and used automatically.
541:
542: Some machines support multiple values for MACHINE_ARCH. For a
543: given value of mach, the following MACHINE and MACHINE_ARCH
544: values will result:
545:
546: mach MACHINE MACHINE_ARCH
547: evbmips evbmips (not set)
548: evbmips-eb evbmips mipseb
549: evbmips-el evbmips mipsel
550: evbsh3 evbsh3 (not set)
551: evbsh3-eb evbsh3 sh3eb
552: evbsh3-el evbsh3 sh3el
553: sbmips sbmips (not set)
554: sbmips-eb sbmips mipseb
555: sbmips-el sbmips mipsel
1.1 tv 556:
557: -n Show the commands that would be executed by build.sh, but do
558: not make any changes. This is similar in concept to ``make
559: -n''.
560:
1.18 lukem 561: -O obj Create an appropriate transform macro for MAKEOBJDIR that will
562: place the built object files under obj. For instance, a set-
563: ting of /usr/obj will place build-time files under
564: /usr/obj/bin, /usr/obj/lib, and so forth.
565:
1.34 ! lukem 566: -o Set the value of MKOBJDIRS to ``no''. Otherwise, it will be
! 567: automatically set to ``yes'' (which is opposite to the default
! 568: behaviour).
1.1 tv 569:
1.22 lukem 570: -R rel Set the value of RELEASEDIR to rel.
1.18 lukem 571:
1.1 tv 572: -r Remove the contents of DESTDIR and TOOLDIR before building
573: (provides a clean starting point). This will skip deleting
574: DESTDIR if building on a native system to the root directory.
575:
1.18 lukem 576: -T tools Set the value of TOOLDIR to tools. If set, the bootstrap
577: ``make'' will only be rebuilt as needed (when the source files
578: for make(1) change).
579:
580: -U Set the UNPRIVED variable.
581:
1.1 tv 582: -u Set the UPDATE variable.
583:
1.21 lukem 584: -V var=[value]
1.23 lukem 585: Set the variable var to value (which is optional).
1.21 lukem 586:
1.1 tv 587: -w wrapper
588: Create the nbmake wrapper script (see below) in a custom loca-
589: tion, specified by wrapper. This allows, for instance, to
590: place the wrapper in PATH automatically. Note that wrapper is
591: the full name of the file, not just a directory name.
592:
593: The "nbmake-MACHINE" wrapper script
594: If using the build.sh script to build NetBSD, a nbmake-MACHINE script
595: will be created in TOOLDIR/bin upon the first build to assist in building
596: subtrees on a cross-compile host.
597:
598: nbmake-MACHINE can be invoked in lieu of make(1), and will instead call
599: the up-to-date version of ``nbmake'' installed into TOOLDIR/bin with sev-
600: eral key variables pre-set, including MACHINE, MACHINE_ARCH, and TOOLDIR.
601: This script can be symlinked into a directory listed in PATH, or called
602: with an absolute path.
603:
1.16 lukem 604: EXAMPLES
1.28 lukem 605: 1. ./build.sh tools kernel=GENERIC
606:
607: Build a new toolchain, and use the new toolchain to configure and
608: build a new GENERIC kernel.
609:
1.30 lukem 610: 2. ./build.sh -U distribution
1.28 lukem 611:
1.30 lukem 612: Using unprivileged mode, build a complete distribution to a DESTDIR
613: directory that build.sh selects (and will display).
1.28 lukem 614:
1.30 lukem 615: 3. # ./build.sh -U install=/
1.28 lukem 616:
1.29 lukem 617: As root, install to / the distribution that was built by example 2.
618: Even though this is run as root, -U is required so that the permis-
1.30 lukem 619: sions stored in DESTDIR/METALOG are correctly applied to the files
620: as they're copied to /.
1.28 lukem 621:
1.30 lukem 622: 4. ./build.sh -U -u release
1.28 lukem 623:
1.30 lukem 624: Using unprivileged mode, build a complete release to DESTDIR and
625: RELEASEDIR directories that build.sh selects (and will display).
626: UPDATE (-u) is set to prevent the ``make cleandir'', so that if this
627: is run after example 2, it doesn't need to redo that portion of the
628: release build.
1.16 lukem 629:
1.10 sommerfe 630: OBSOLETE VARIABLES
1.15 lukem 631: NBUILDJOBS Use the make(1) option -j, instead.
632:
633: USE_NEW_TOOLCHAIN
634: The new toolchain is now the default. To disable, use
635: TOOLCHAIN_MISSING=yes.
1.10 sommerfe 636:
1.1 tv 637: SEE ALSO
638: make(1), hier(7), release(7)
639:
640: HISTORY
1.15 lukem 641: The build.sh based build scheme was introduced for NetBSD 1.6 as
642: USE_NEW_TOOLCHAIN, and re-worked to TOOLCHAIN_MISSING after that.
1.1 tv 643:
644: BUGS
1.15 lukem 645: A few platforms are not yet using this build system.
1.1 tv 646:
1.34 ! lukem 647: NetBSD May 18, 2003 10
CVSweb <webmaster@jp.NetBSD.org>