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Annotation of src/BUILDING, Revision 1.80

1.1       tv          1: BUILDING(8)             NetBSD System Manager's Manual             BUILDING(8)
                      2:
                      3: NAME
1.52      jmc         4:      BUILDING -- Procedure for building NetBSD from source code.
1.1       tv          5:
                      6: REQUIREMENTS
                      7:      NetBSD is designed to be buildable on most POSIX-compliant host systems.
                      8:      The basic build procedure is the same whether compiling natively (on the
                      9:      same NetBSD architecture) or cross compiling (on another architecture or
                     10:      OS).
                     11:
                     12:      This source tree contains a special subtree, ``tools'', which uses the
                     13:      host system to create a build toolchain for the target architecture.  The
                     14:      host system must have at least C and C++ compilers in order to create the
                     15:      toolchain (make is not required); all other tools are created as part of
1.53      reed       16:      the NetBSD build process.  (See the environment variables section below
                     17:      if you need to override or manually select your compilers.)
1.1       tv         18:
                     19: FILES
                     20:    Source tree layout
1.17      wiz        21:      doc/BUILDING.mdoc
                     22:                     This document (in -mdoc troff format; the original copy).
1.1       tv         23:
1.2       wiz        24:      BUILDING       This document (in plaintext).
1.1       tv         25:
1.48      jmc        26:      tools/compat/README
                     27:                     Special notes for cross-hosting a NetBSD build on non-
                     28:                     NetBSD platforms.
                     29:
1.44      lukem      30:      Makefile       The main Makefile for NetBSD; should only be run for
                     31:                     native builds with an appropriately up-to-date version of
1.1       tv         32:                     NetBSD make(1).  (For building from out-of-date systems or
                     33:                     on a non-native host, see the build.sh shell script.)
                     34:
                     35:      UPDATING       Special notes for updating from an earlier revision of
                     36:                     NetBSD.  It is important to read this file before every
                     37:                     build of an updated source tree.
                     38:
                     39:      build.sh       Bourne-compatible shell script used for building the host
                     40:                     build tools and the NetBSD system from scratch.  Can be
                     41:                     used for both native and cross builds, and should be used
                     42:                     instead of make(1) for any source tree that is updated and
                     43:                     recompiled regularly.
                     44:
                     45:      crypto/dist/, dist/, gnu/dist/
                     46:                     Sources imported verbatim from third parties, without man-
                     47:                     gling the existing build structure.  Other source trees in
                     48:                     bin through usr.sbin use the NetBSD make(1) ``reachover''
1.44      lukem      49:                     Makefile semantics when building these programs for a
                     50:                     native host.
1.1       tv         51:
                     52:      distrib/, etc/
                     53:                     Sources for items used when making a full release snap-
1.27      lukem      54:                     shot, such as files installed in DESTDIR/etc on the desti-
                     55:                     nation system, boot media, and release notes.
1.1       tv         56:
1.70      dholland   57:      tests/, regress/
                     58:                     Regression test harness.  Can be cross-compiled, but only
                     59:                     run natively.  tests/ uses the atf(7) test framework;
                     60:                     regress/ contains older tests that have not yet been
                     61:                     migrated to atf(7).
1.1       tv         62:
                     63:      sys/           NetBSD kernel sources.
                     64:
                     65:      tools/         ``Reachover'' build structure for the host build tools.
                     66:                     This has a special method of determining out-of-date sta-
                     67:                     tus.
                     68:
                     69:      bin/ ... usr.sbin/
                     70:                     Sources to the NetBSD userland (non-kernel) programs.  If
                     71:                     any of these directories are missing, they will be skipped
                     72:                     during the build.
                     73:
1.49      lukem      74:      x11/           ``Reachover'' build structure for X11R6; the source is in
                     75:                     X11SRCDIR.
                     76:
1.1       tv         77:    Build tree layout
                     78:      The NetBSD build tree is described in hier(7), and the release layout is
                     79:      described in release(7).
                     80:
                     81: CONFIGURATION
1.8       lukem      82:    Environment variables
                     83:      Several environment variables control the behaviour of NetBSD builds.
                     84:
1.58      apb        85:      HOST_SH           Path name to a POSIX-compliant shell.  If this is not
                     86:                        set explicitly, then the default is set using heuris-
                     87:                        tics dependent on the host platform, or from the shell
                     88:                        under which build.sh is executed (if that can be deter-
                     89:                        mined), or using the first copy of sh found in PATH.
                     90:                        If the host system's /bin/sh is not POSIX-compliant, we
                     91:                        suggest that you build using commands like
                     92:
                     93:                              HOST_SH=/path/to/working/shell
                     94:                              export HOST_SH
                     95:                              ${HOST_SH} build.sh [options]
                     96:
1.53      reed       97:      HOST_CC           Path name to C compiler used to create the toolchain.
                     98:
                     99:      HOST_CXX          Path name to C++ compiler used to create the toolchain.
                    100:
1.70      dholland  101:      MACHINE           Machine type, e.g., ``macppc''.
1.8       lukem     102:
1.70      dholland  103:      MACHINE_ARCH      Machine architecture, e.g., ``powerpc''.
1.8       lukem     104:
                    105:      MAKE              Path name to invoke make(1) as.
                    106:
                    107:      MAKEFLAGS         Flags to invoke make(1) with.
                    108:
                    109:      MAKEOBJDIR        Directory to use as the .OBJDIR for the current direc-
1.59      apb       110:                        tory.  The value is subjected to variable expansion by
1.73      apb       111:                        make(1).  Typical usage is to set this variable to a
                    112:                        value involving the use of `${.CURDIR:S...}' or
                    113:                        `${.CURDIR:C...}', to derive the value of .OBJDIR from
                    114:                        the value of .CURDIR.  Used only if MAKEOBJDIRPREFIX is
                    115:                        not defined.  MAKEOBJDIR can be provided only in the
                    116:                        environment or via the -O flag of build.sh; it cannot
                    117:                        usefully be set inside a Makefile.
1.8       lukem     118:
                    119:      MAKEOBJDIRPREFIX  Top level directory of the object directory tree.  If
1.59      apb       120:                        specified, must be an absolute path.  If this is
                    121:                        defined, ${MAKEOBJDIRPREFIX}/${.CURDIR} is used as the
                    122:                        .OBJDIR for the current directory.  The current direc-
1.73      apb       123:                        tory may be read only.  MAKEOBJDIRPREFIX can be pro-
                    124:                        vided only in the environment or via the -M flag of
                    125:                        build.sh; it cannot usefully be set inside a Makefile.
1.8       lukem     126:
1.1       tv        127:    "make" variables
                    128:      Several variables control the behavior of NetBSD builds.  Unless other-
                    129:      wise specified, these variables may be set in either the process environ-
                    130:      ment or the make(1) configuration file specified by MAKECONF.
                    131:
1.9       thorpej   132:      BUILDID     Identifier for the build.  The identifier will be appended to
                    133:                  object directory names, and can be consulted in the make(1)
                    134:                  configuration file in order to set additional build parame-
                    135:                  ters, such as compiler flags.
                    136:
1.72      perry     137:      BUILDSEED   GCC uses random numbers when compiling C++ code.  This vari-
                    138:                  able seeds the gcc random number generator using the -fran-
                    139:                  dom-seed flag with this value.  By default, it is set to
                    140:                  NetBSD-(majorversion).  Using a fixed value causes C++ bina-
                    141:                  ries to be the same when built from the same sources.  Addi-
                    142:                  tional information is available in the GCC documentation of
                    143:                  -frandom-seed.
                    144:
1.1       tv        145:      DESTDIR     Directory to contain the built NetBSD system.  If set, spe-
                    146:                  cial options are passed to the compilation tools to prevent
                    147:                  their default use of the host system's /usr/include,
1.59      apb       148:                  /usr/lib, and so forth.  This pathname must be an absolute
                    149:                  path, and should not end with a slash (/) character.  (For
                    150:                  installation into the system's root directory, set DESTDIR to
                    151:                  an empty string, not to ``/'').  The directory must reside on
                    152:                  a file system which supports long file names and hard links.
1.1       tv        153:
                    154:                  Default: Empty string if USETOOLS is ``yes''; unset other-
                    155:                  wise.
                    156:
1.30      lukem     157:                  Note: build.sh will provide a default of destdir.MACHINE (in
1.70      dholland  158:                  the top-level .OBJDIR) unless run in `expert' mode.
1.30      lukem     159:
1.1       tv        160:      MAKECONF    The name of the make(1) configuration file.  Only settable in
                    161:                  the process environment.
                    162:
                    163:                  Default: ``/etc/mk.conf''
                    164:
1.45      lukem     165:      MAKEVERBOSE
                    166:                  Level of verbosity of status messages.  Supported values:
                    167:
1.80    ! apb       168:                  0    No descriptive messages or commands executed by make(1)
        !           169:                       are shown.
1.45      lukem     170:
1.80    ! apb       171:                  1    Brief messages are shown describing what is being done,
        !           172:                       but the actual commands executed by make(1) are not dis-
        !           173:                       played.
        !           174:
        !           175:                  2    Descriptive messages are shown as above (prefixed with a
        !           176:                       `#'), and ordinary commands performed by make(1) are
        !           177:                       displayed.
        !           178:
        !           179:                  3    In addition to the above, all commands performed by
        !           180:                       make(1) are displayed, even if they would ordinarily
        !           181:                       have been hidden through use of the ``@'' prefix in the
        !           182:                       relevant makefile.
1.45      lukem     183:
1.80    ! apb       184:                  4    In addition to the above, commands executed by make(1)
        !           185:                       are traced through use of the sh(1) ``-x'' flag.
1.45      lukem     186:
                    187:                  Default: 2
                    188:
1.1       tv        189:      MKCATPAGES  Can be set to ``yes'' or ``no''.  Indicates whether prefor-
                    190:                  matted plaintext manual pages will be created during a build.
                    191:
                    192:                  Default: ``yes''
                    193:
                    194:      MKCRYPTO    Can be set to ``yes'' or ``no''.  Indicates whether crypto-
                    195:                  graphic code will be included in a build; provided for the
                    196:                  benefit of countries that do not allow strong cryptography.
1.44      lukem     197:                  Will not affect use of the standard low-security password
                    198:                  encryption system, crypt(3).
1.1       tv        199:
                    200:                  Default: ``yes''
                    201:
                    202:      MKDOC       Can be set to ``yes'' or ``no''.  Indicates whether system
1.44      lukem     203:                  documentation destined for DESTDIR/usr/share/doc will be
                    204:                  installed during a build.
1.1       tv        205:
                    206:                  Default: ``yes''
                    207:
1.77      lukem     208:      MKHTML      Can be set to ``yes'' or ``no''.  Indicates whether prefor-
                    209:                  matted HTML manual pages will be built and installed
                    210:
                    211:                  Default: ``yes''
                    212:
1.4       tv        213:      MKHOSTOBJ   Can be set to ``yes'' or ``no''.  If set to ``yes'', then for
                    214:                  programs intended to be run on the compile host, the name,
                    215:                  release, and architecture of the host operating system will
                    216:                  be suffixed to the name of the object directory created by
                    217:                  ``make obj''.  (This allows multiple host systems to compile
                    218:                  NetBSD for a single target.)  If set to ``no'', then programs
                    219:                  built to be run on the compile host will use the same object
                    220:                  directory names as programs built to be run on the target.
                    221:
                    222:                  Default: ``no''
                    223:
1.1       tv        224:      MKINFO      Can be set to ``yes'' or ``no''.  Indicates whether GNU Info
                    225:                  files, used for the documentation for most of the compilation
                    226:                  tools, will be created and installed during a build.
                    227:
                    228:                  Default: ``yes''
                    229:
                    230:      MKLINT      Can be set to ``yes'' or ``no''.  Indicates whether lint(1)
                    231:                  will be run against portions of the NetBSD source code during
                    232:                  the build, and whether lint libraries will be installed into
1.27      lukem     233:                  DESTDIR/usr/libdata/lint.
1.1       tv        234:
                    235:                  Default: ``yes''
                    236:
                    237:      MKMAN       Can be set to ``yes'' or ``no''.  Indicates whether manual
                    238:                  pages will be installed during a build.
                    239:
                    240:                  Default: ``yes''
                    241:
                    242:      MKNLS       Can be set to ``yes'' or ``no''.  Indicates whether Native
1.44      lukem     243:                  Language System locale zone files will be compiled and
                    244:                  installed during a build.
1.1       tv        245:
                    246:                  Default: ``yes''
                    247:
                    248:      MKOBJ       Can be set to ``yes'' or ``no''.  Indicates whether object
                    249:                  directories will be created when running ``make obj''.  If
                    250:                  set to ``no'', then all built files will be located inside
                    251:                  the regular source tree.
                    252:
                    253:                  Default: ``yes''
                    254:
1.70      dholland  255:                  Note that setting MKOBJ to ``no'' is not recommended and may
                    256:                  cause problems when updating the tree with cvs(1).
                    257:
1.1       tv        258:      MKPIC       Can be set to ``yes'' or ``no''.  Indicates whether shared
                    259:                  objects and libraries will be created and installed during a
                    260:                  build.  If set to ``no'', the entire built system will be
                    261:                  statically linked.
                    262:
                    263:                  Default: Platform dependent.  As of this writing, all plat-
                    264:                  forms except sh3 default to ``yes''.
                    265:
                    266:      MKPICINSTALL
                    267:                  Can be set to ``yes'' or ``no''.  Indicates whether the ar(1)
1.44      lukem     268:                  format libraries (lib*_pic.a), used to generate shared
                    269:                  libraries, are installed during a build.
1.1       tv        270:
                    271:                  Default: ``yes''
                    272:
                    273:      MKPROFILE   Can be set to ``yes'' or ``no''.  Indicates whether profiled
                    274:                  libraries (lib*_p.a) will be built and installed during a
                    275:                  build.
                    276:
                    277:                  Default: ``yes''; however, some platforms turn off MKPROFILE
                    278:                  by default at times due to toolchain problems with profiled
                    279:                  code.
                    280:
                    281:      MKSHARE     Can be set to ``yes'' or ``no''.  Indicates whether files
1.44      lukem     282:                  destined to reside in DESTDIR/usr/share will be built and
                    283:                  installed during a build.  If set to ``no'', then all of
1.27      lukem     284:                  MKCATPAGES, MKDOC, MKINFO, MKMAN, and MKNLS will be set to
                    285:                  ``no'' unconditionally.
1.1       tv        286:
                    287:                  Default: ``yes''
                    288:
1.78      apb       289:      MKSTRIPIDENT
                    290:                  Can be set to ``yes'' or ``no''.  Indicates whether program
                    291:                  binaries and shared libraries should be built to include RCS
                    292:                  IDs for use with ident(1).
                    293:
                    294:                  Default: ``no''
                    295:
1.50      wiz       296:      MKTTINTERP  Can be set to ``yes'' or ``no''.  For X builds, decides if
                    297:                  the TrueType bytecode interpreter is turned on.  See
                    298:                  http://www.freetype.org/patents.html for details.
                    299:
                    300:                  Default: ``no''
                    301:
1.44      lukem     302:      MKUNPRIVED  Can be set to ``yes'' or ``no''.  Indicates whether an
                    303:                  unprivileged install will occur.  The user, group, permis-
1.52      jmc       304:                  sions, and file flags, will not be set on the installed
                    305:                  items; instead the information will be appended to a file
                    306:                  called METALOG in DESTDIR.  The contents of METALOG are used
                    307:                  during the generation of the distribution tar files to ensure
                    308:                  that the appropriate file ownership is stored.
1.38      lukem     309:
                    310:                  Default: ``no''
                    311:
1.44      lukem     312:      MKUPDATE    Can be set to ``yes'' or ``no''.  Indicates whether all
                    313:                  install operations intended to write to DESTDIR will compare
1.38      lukem     314:                  file timestamps before installing, and skip the install phase
1.44      lukem     315:                  if the destination files are up-to-date.  This also has
                    316:                  implications on full builds (see next subsection).
1.38      lukem     317:
                    318:                  Default: ``no''
                    319:
1.79      mrg       320:      MKX11       Can be set to ``yes'' or ``no''.  Indicates whether X11 is
1.49      lukem     321:                  built from X11SRCDIR.
                    322:
                    323:                  Default: ``no''
                    324:
1.59      apb       325:      TOOLDIR     Directory to hold the host tools, once built.  If specified,
                    326:                  must be an absolute path.  This directory should be unique to
                    327:                  a given host system and NetBSD source tree.  (However, multi-
                    328:                  ple targets may share the same TOOLDIR; the target-dependent
                    329:                  files have unique names.)  If unset, a default based on the
                    330:                  uname(1) information of the host platform will be created in
                    331:                  the .OBJDIR of src.
1.1       tv        332:
                    333:                  Default: Unset.
                    334:
                    335:      USETOOLS    Indicates whether the tools specified by TOOLDIR should be
                    336:                  used as part of a build in progress.  Must be set to ``yes''
                    337:                  if cross-compiling.
                    338:
                    339:                  yes    Use the tools from TOOLDIR.
                    340:
                    341:                  no     Do not use the tools from TOOLDIR, but refuse to build
                    342:                         native compilation tool components that are version-
                    343:                         specific for that tool.
                    344:
                    345:                  never  Do not use the tools from TOOLDIR, even when building
                    346:                         native tool components.  This is similar to the tradi-
                    347:                         tional NetBSD build method, but does not verify that
                    348:                         the compilation tools in use are up-to-date enough in
                    349:                         order to build the tree successfully.  This may cause
                    350:                         build or runtime problems when building the whole
                    351:                         NetBSD source tree.
                    352:
1.71      dholland  353:                  Default: ``yes'', unless TOOLCHAIN_MISSING is set to ``yes''.
                    354:
                    355:                  USETOOLS is also set to ``no'' when using <bsd.*.mk> outside
                    356:                  the NetBSD source tree.
1.1       tv        357:
1.59      apb       358:      X11SRCDIR   Directory containing the X11R6 source.  If specified, must be
                    359:                  an absolute path.  The main X11R6 source is found in
                    360:                  X11SRCDIR/xfree/xc.
1.49      lukem     361:
                    362:                  Default: ``/usr/xsrc''
                    363:
1.79      mrg       364:      X11FLAVOUR  The style of X11 cross-built, set to either ``Xorg'' or
                    365:                  ``XFree86''.
                    366:
                    367:                  Default: ``Xorg'' on amd64, i386, macppc, shark, sparc and
                    368:                  sparc64 platforms, ``XFree86'' on everything else.
                    369:
1.1       tv        370:    "make" variables for full builds
1.7       lukem     371:      These variables only affect the top level ``Makefile'' and do not affect
                    372:      manually building subtrees of the NetBSD source code.
1.1       tv        373:
1.20      lukem     374:      INSTALLWORLDDIR  Location for the ``make installworld'' target to install
1.59      apb       375:                       to.  If specified, must be an absolute path.
1.1       tv        376:
1.20      lukem     377:                       Default: ``/''
1.1       tv        378:
1.44      lukem     379:      MKOBJDIRS        Can be set to ``yes'' or ``no''.  Indicates whether
                    380:                       object directories will be created automatically (via a
1.20      lukem     381:                       ``make obj'' pass) at the start of a build.
1.1       tv        382:
1.34      lukem     383:                       Default: ``no''
1.1       tv        384:
1.70      dholland  385:                       If using build.sh, the default is ``yes''.  This may be
                    386:                       set back to ``no'' by giving build.sh the -o option.
                    387:
1.38      lukem     388:      MKUPDATE         Can be set to ``yes'' or ``no''.  If set, then in addi-
                    389:                       tion to the effects described for MKUPDATE=yes above,
                    390:                       this implies the effects of NOCLEANDIR (i.e., ``make
                    391:                       cleandir'' is avoided).
                    392:
                    393:                       Default: ``no''
                    394:
1.70      dholland  395:                       If using build.sh, this may be set by giving the -u
                    396:                       option.
                    397:
                    398:      NBUILDJOBS       Now obsolete.  Use the make(1) option -j, instead.  See
                    399:                       below.
1.1       tv        400:
1.20      lukem     401:                       Default: Unset.
1.1       tv        402:
1.20      lukem     403:      NOCLEANDIR       If set, avoids the ``make cleandir'' phase of a full
                    404:                       build.  This has the effect of allowing only changed
                    405:                       files in a source tree to be recompiled.  This can speed
                    406:                       up builds when updating only a few files in the tree.
1.1       tv        407:
1.20      lukem     408:                       Default: Unset.
1.1       tv        409:
1.70      dholland  410:                       See also MKUPDATE.
                    411:
1.20      lukem     412:      NODISTRIBDIRS    If set, avoids the ``make distrib-dirs'' phase of a full
                    413:                       build.  This skips running mtree(8) on DESTDIR, useful
                    414:                       on systems where building as an unprivileged user, or
                    415:                       where it is known that the system-wide mtree files have
                    416:                       not changed.
1.1       tv        417:
1.20      lukem     418:                       Default: Unset.
1.1       tv        419:
1.20      lukem     420:      NOINCLUDES       If set, avoids the ``make includes'' phase of a full
                    421:                       build.  This has the effect of preventing make(1) from
1.44      lukem     422:                       thinking that some programs are out-of-date simply
                    423:                       because the system include files have changed.  However,
1.20      lukem     424:                       this option should not be used when updating the entire
                    425:                       NetBSD source tree arbitrarily; it is suggested to use
1.70      dholland  426:                       MKUPDATE=yes instead in that case.
1.1       tv        427:
1.20      lukem     428:                       Default: Unset.
1.1       tv        429:
1.20      lukem     430:      RELEASEDIR       If set, specifies the directory to which a release(7)
                    431:                       layout will be written at the end of a ``make release''.
1.59      apb       432:                       If specified, must be an absolute path.
1.20      lukem     433:
                    434:                       Default: Unset.
                    435:
1.30      lukem     436:                       Note: build.sh will provide a default of releasedir (in
1.70      dholland  437:                       the top-level .OBJDIR) unless run in `expert' mode.
1.30      lukem     438:
1.1       tv        439: BUILDING
                    440:    "make" command line options
1.52      jmc       441:      This is not a summary of all the options available to make(1); only the
                    442:      options used most frequently with NetBSD builds are listed here.
1.1       tv        443:
1.10      sommerfe  444:      -j njob    Run up to njob make(1) subjobs in parallel.  Makefiles should
1.52      jmc       445:                 use .WAIT or have explicit dependencies as necessary to
1.74      apb       446:                 enforce build ordering.
1.10      sommerfe  447:
1.1       tv        448:      -m dir     Specify the default directory for searching for system Make-
                    449:                 file segments, mainly the <bsd.*.mk> files.  When building any
                    450:                 full NetBSD source tree, this should be set to the
1.70      dholland  451:                 ``share/mk'' directory in the source tree.  This is set auto-
                    452:                 matically when building from the top level, or when using
                    453:                 build.sh.
1.1       tv        454:
                    455:      -n         Display the commands that would have been executed, but do not
                    456:                 actually execute them.  This will still cause recursion to
                    457:                 take place.
                    458:
1.47      zuntum    459:      -V var     Print make(1)'s idea of the value of var.  Does not build any
1.1       tv        460:                 targets.
                    461:
                    462:      var=value  Set the variable var to value, overriding any setting speci-
                    463:                 fied by the process environment, the MAKECONF configuration
                    464:                 file, or the system Makefile segments.
                    465:
                    466:    "make" targets
                    467:      These default targets may be built by running make(1) in any subtree of
                    468:      the NetBSD source code.  It is recommended that none of these be used
                    469:      from the top level Makefile; as a specific exception, ``make obj'' and
                    470:      ``make cleandir'' are useful in that context.
                    471:
                    472:      all        Build programs, libraries, and preformatted documentation.
                    473:
                    474:      clean      Remove program and library object code files.
                    475:
1.44      lukem     476:      cleandir   Same as clean, but also remove preformatted documentation,
                    477:                 dependency files generated by ``make depend'', and any other
1.49      lukem     478:                 files known to be created at build time.
1.1       tv        479:
1.44      lukem     480:      depend     Create dependency files (.depend) containing more detailed
                    481:                 information about the dependencies of source code on header
1.1       tv        482:                 files.  Allows programs to be recompiled automatically when a
                    483:                 dependency changes.
                    484:
                    485:      dependall  Does a ``make depend'' immediately followed by a ``make all''.
1.10      sommerfe  486:                 This improves cache locality of the build since both passes
                    487:                 read the source files in their entirety.
1.1       tv        488:
1.49      lukem     489:      distclean  Synonym for cleandir.
                    490:
1.44      lukem     491:      includes   Build and install system header files.  Typically needed
                    492:                 before any system libraries or programs can be built.
1.1       tv        493:
                    494:      install    Install programs, libraries, and documentation into DESTDIR.
1.27      lukem     495:                 Few files will be installed to DESTDIR/dev, DESTDIR/etc,
                    496:                 DESTDIR/root or DESTDIR/var in order to prevent user supplied
                    497:                 configuration data from being overwritten.
1.1       tv        498:
                    499:      lint       Run lint(1) against the C source code, where appropriate, and
                    500:                 generate system-installed lint libraries.
                    501:
                    502:      obj        Create object directories to be used for built files, instead
                    503:                 of building directly in the source tree.
                    504:
                    505:      tags       Create ctags(1) searchable function lists usable by the ex(1)
                    506:                 and vi(1) text editors.
                    507:
                    508:    "make" targets for the top level
                    509:      Additional make(1) targets are usable specifically from the top source
                    510:      level to facilitate building the entire NetBSD source tree.
                    511:
1.68      reed      512:      build         Build the entire NetBSD system (except the kernel).  This
                    513:                    orders portions of the source tree such that prerequisites
                    514:                    will be built in the proper order.
1.20      lukem     515:
                    516:      distribution  Do a ``make build'', and then install a full distribution
1.68      reed      517:                    (which does not include a kernel) into DESTDIR, including
                    518:                    files in DESTDIR/dev, DESTDIR/etc, DESTDIR/root and
                    519:                    DESTDIR/var.
1.20      lukem     520:
                    521:      buildworld    As per ``make distribution'', except that it ensures that
                    522:                    DESTDIR is not the root directory.
                    523:
1.70      dholland  524:      installworld  Install the distribution from DESTDIR to INSTALLWORLDDIR,
                    525:                    which defaults to the root directory.  Ensures that
1.52      jmc       526:                    INSTALLWORLDDIR is not the root directory if cross compil-
1.20      lukem     527:                    ing.
                    528:
1.61      apb       529:                    The INSTALLSETS environment variable may be set to a list
                    530:                    of distribution sets to be installed.  By default, all sets
1.70      dholland  531:                    except ``etc'' and ``xetc'' are installed, so most files in
                    532:                    INSTALLWORLDDIR/etc will not be installed or modified.
1.61      apb       533:
                    534:                    Note: Before performing this operation with
                    535:                    INSTALLWORLDDIR=/, it is highly recommended that you
                    536:                    upgrade your kernel and reboot.  After performing this
                    537:                    operation, it is recommended that you use etcupdate(8) to
                    538:                    update files in INSTALLWORLDDIR/etc and that you use
                    539:                    postinstall(8) to check for inconsistencies (and possibly
                    540:                    to fix them).
1.20      lukem     541:
1.25      lukem     542:      sets          Create distribution sets from DESTDIR into
1.69      lukem     543:                    RELEASEDIR/RELEASEMACHINEDIR/binary/sets.  Should be run
1.70      dholland  544:                    after ``make distribution'', as ``make build'' alone does
                    545:                    not install all of the required files.
1.25      lukem     546:
1.31      lukem     547:      sourcesets    Create source sets of the source tree into
                    548:                    RELEASEDIR/source/sets.
                    549:
1.54      apb       550:      syspkgs       Create syspkgs from DESTDIR into
1.69      lukem     551:                    RELEASEDIR/RELEASEMACHINEDIR/binary/syspkgs.  Should be run
1.70      dholland  552:                    after ``make distribution'', as ``make build'' alone does
                    553:                    not install all of the required files.
1.54      apb       554:
1.44      lukem     555:      release       Do a ``make distribution'', build kernels, distribution
                    556:                    media, and install sets (this as per ``make sets''), and
                    557:                    then package the system into a standard release layout as
                    558:                    described by release(7).  This requires that RELEASEDIR be
1.25      lukem     559:                    set (see above).
1.1       tv        560:
1.62      apb       561:      iso-image     Create a NetBSD installation CD-ROM image in the
                    562:                    RELEASEDIR/iso directory.  The CD-ROM file system will have
                    563:                    a layout as described in release(7).
                    564:
                    565:                    For most machine types, the CD-ROM will be bootable, and
                    566:                    will automatically run the sysinst(8) menu-based installa-
                    567:                    tion program, which can be used to install or upgrade a
                    568:                    NetBSD system.  Bootable CD-ROMs also contain tools that
                    569:                    may be useful in repairing a damaged NetBSD installation.
                    570:
                    571:                    Before ``make iso-image'' is attempted, RELEASEDIR must be
                    572:                    populated by ``make release'' or equivalent.
                    573:
                    574:                    Note that other, smaller, CD-ROM images may be created in
1.69      lukem     575:                    the RELEASEDIR/RELEASEMACHINEDIR/installation/cdrom direc-
                    576:                    tory by ``make release''.  These smaller images usually
                    577:                    contain the same tools as the larger images in
                    578:                    RELEASEDIR/iso, but do not contain additional content such
                    579:                    as the distribution sets.
1.62      apb       580:
                    581:                    Note that the mac68k port still uses an older method of
                    582:                    creating CD-ROM images.  This requires the mkisofs(1) util-
                    583:                    ity, which is not part of NetBSD, but which can be
                    584:                    installed from pkgsrc/sysutils/cdrtools.
1.56      apb       585:
1.64      jnemeth   586:      iso-image-source
                    587:                    Create a NetBSD installation CD-ROM image in the
                    588:                    RELEASEDIR/iso directory.  The CD-ROM file system will have
                    589:                    a layout as described in release(7).  It will have top
                    590:                    level directories for the machine type and source.
                    591:
                    592:                    For most machine types, the CD-ROM will be bootable, and
                    593:                    will automatically run the sysinst(8) menu-based installa-
                    594:                    tion program, which can be used to install or upgrade a
                    595:                    NetBSD system.  Bootable CD-ROMs also contain tools that
                    596:                    may be useful in repairing a damaged NetBSD installation.
                    597:
                    598:                    Before ``make iso-image-source'' is attempted, RELEASEDIR
                    599:                    must be populated by ``make sourcesets release'' or equiva-
                    600:                    lent.
                    601:
                    602:                    Note that other, smaller, CD-ROM images may be created in
1.69      lukem     603:                    the RELEASEDIR/RELEASEMACHINEDIR/installation/cdrom direc-
                    604:                    tory by ``make release''.  These smaller images usually
                    605:                    contain the same tools as the larger images in
                    606:                    RELEASEDIR/iso, but do not contain additional content such
                    607:                    as the distribution sets.
1.64      jnemeth   608:
                    609:                    Note that the mac68k port still uses an older method of
                    610:                    creating CD-ROM images.  This requires the mkisofs(1) util-
                    611:                    ity, which is not part of NetBSD, but which can be
                    612:                    installed from pkgsrc/sysutils/cdrtools.
                    613:
1.1       tv        614:      regression-tests
1.20      lukem     615:                    Can only be run after building the regression tests in the
1.70      dholland  616:                    directory ``regress''.  Runs those compiled regression
                    617:                    tests on the local host.  Note that most tests are now man-
                    618:                    aged instead using atf(7); this target should probably run
                    619:                    those as well but currently does not.
1.1       tv        620:
                    621:    The "build.sh" script
                    622:      This script file is a Bourne shell script designed to build the entire
                    623:      NetBSD system on any host with a Bourne shell in /bin/sh, including many
                    624:      that are not POSIX compliant.  Note that if a host system's /bin/sh is
                    625:      unusually old and broken, the Korn Shell (/bin/ksh), if available, may be
                    626:      a usable alternative.
                    627:
                    628:      All cross-compile builds, and most native builds, of the entire system
                    629:      should make use of build.sh rather than just running ``make''.  This way,
                    630:      the make(1) program will be bootstrapped properly, in case the host sys-
                    631:      tem has an older or incompatible ``make'' program.
                    632:
                    633:      When compiling the entire system via build.sh, many make(1) variables are
                    634:      set for you in order to help encapsulate the build process.  In the list
                    635:      of options below, variables that are automatically set by build.sh are
                    636:      noted where applicable.
                    637:
1.22      lukem     638:      The following operations are supported by build.sh:
                    639:
1.70      dholland  640:      build         Build the system as per ``make build''.  Before the main
                    641:                    part of the build commences, this command runs the obj
                    642:                    operation (unless the -o option is given), ``make
                    643:                    cleandir'' (unless the -u option is given), and the tools
                    644:                    operation.
1.22      lukem     645:
                    646:      distribution  Build a full distribution as per ``make distribution''.
1.70      dholland  647:                    This command first runs the build operation.
1.22      lukem     648:
1.70      dholland  649:      release       Build a full release as per ``make release''.  This command
                    650:                    first runs the distribution operation.
1.22      lukem     651:
1.23      lukem     652:      makewrapper   Create the nbmake-MACHINE wrapper.  This operation is auto-
                    653:                    matically performed for any of the other operations.
                    654:
1.75      lukem     655:      cleandir      Perform ``make cleandir''.
                    656:
1.22      lukem     657:      obj           Perform ``make obj''.
                    658:
1.70      dholland  659:      tools         Build and install the host tools from src/tools.  This com-
                    660:                    mand will first run ``make obj'' and ``make cleandir'' in
                    661:                    the tools subdirectory unless the -o or -u options (respec-
                    662:                    tively) are given.
1.22      lukem     663:
1.35      lukem     664:      install=idir  Install the contents of DESTDIR to idir, using ``make
1.61      apb       665:                    installworld''.  Note that files that are part of the
                    666:                    ``etc'' or ``xetc'' sets will not be installed.
1.35      lukem     667:
1.22      lukem     668:      kernel=kconf  Build a new kernel.  The kconf argument is the name of a
1.54      apb       669:                    configuration file suitable for use by config(1).  If kconf
1.22      lukem     670:                    does not contain any `/' characters, the configuration file
                    671:                    is expected to be found in the KERNCONFDIR directory, which
                    672:                    is typically sys/arch/MACHINE/conf.  The new kernel will be
                    673:                    built in a subdirectory of KERNOBJDIR, which is typically
                    674:                    sys/arch/MACHINE/compile or an associated object directory.
1.70      dholland  675:
                    676:                    This command does not imply the tools command; run the
                    677:                    tools command first unless it is certain that the tools
                    678:                    already exist and are up to date.
                    679:
                    680:                    This command will run ``make cleandir'' on the kernel in
                    681:                    question first unless the -u option is given.
1.22      lukem     682:
1.35      lukem     683:      releasekernel=kconf
1.70      dholland  684:                    Install a gzip(1)ed copy of the kernel previously built by
1.69      lukem     685:                    kernel=kconf into
                    686:                    RELEASEDIR/RELEASEMACHINEDIR/binary/kernel, usually as
                    687:                    netbsd-kconf.gz, although the ``netbsd'' prefix is deter-
                    688:                    mined from the ``config'' directives in kconf.
1.24      lukem     689:
                    690:      sets          Perform ``make sets''.
1.31      lukem     691:
                    692:      sourcesets    Perform ``make sourcesets''.
1.22      lukem     693:
1.54      apb       694:      syspkgs       Perform ``make syspkgs''.
                    695:
1.56      apb       696:      iso-image     Perform ``make iso-image''.
                    697:
1.65      jnemeth   698:      iso-image-source
                    699:                    Perform ``make iso-image-source''.
                    700:
1.51      wiz       701:      The following command line options alter the behaviour of the build.sh
                    702:      operations described above:
1.1       tv        703:
                    704:      -a arch   Set the value of MACHINE_ARCH to arch.
1.9       thorpej   705:
                    706:      -B buildid
                    707:                Set the value of BUILDID to buildid.  This will also append the
1.67      sborrill  708:                build identifier to the name of the ``make'' wrapper script so
1.37      lukem     709:                that the resulting name is of the form
                    710:                ``nbmake-MACHINE-BUILDID''.
1.1       tv        711:
1.67      sborrill  712:      -C cdextras
                    713:                Set the value of CDEXTRA to cdextras which is a space-separated
                    714:                list of files or directories which will be added in order to
                    715:                the CD-ROM image when used in conjunction with ``iso-image'' or
                    716:                ``iso-image-source''.  Files will be added to the root of the
                    717:                CD-ROM image, whereas directories will be copied recursively.
                    718:                If relative paths are specified, they will be converted to
                    719:                absolute paths before being used.
1.66      jnemeth   720:
1.59      apb       721:      -D dest   Set the value of DESTDIR to dest.  If a relative path is speci-
                    722:                fied, it will be converted to an absolute path before being
                    723:                used.
1.18      lukem     724:
1.23      lukem     725:      -E        Set `expert' mode.  This overrides various sanity checks, and
                    726:                allows: DESTDIR does not have to be set to a non-root path for
1.38      lukem     727:                builds, and MKUNPRIVED=yes does not have to be set when build-
                    728:                ing as a non-root user.
1.23      lukem     729:
                    730:                Note: It is highly recommended that you know what you are doing
                    731:                when you use this option.
1.19      lukem     732:
1.51      wiz       733:      -h        Print a help message.
                    734:
1.70      dholland  735:      -j njob   Run up to njob make(1) subjobs in parallel; passed through to
1.74      apb       736:                make(1).  If you see failures for reasons other than running
                    737:                out of memory while using build.sh with -j, please save com-
                    738:                plete build logs so the failures can be analyzed.
                    739:
                    740:                To achieve the fastest builds, -j values between (1 + the num-
                    741:                ber of CPUs) and (2 * the number of CPUs) are recommended.  Use
                    742:                lower values on machines with limited memory or I/O bandwidth.
1.1       tv        743:
1.73      apb       744:      -M obj    Set MAKEOBJDIRPREFIX to obj.  For instance, if the source
                    745:                directory is /usr/src, a setting of ``-M /usr/obj'' will place
                    746:                build-time files under /usr/obj/usr/src/bin,
                    747:                /usr/obj/usr/src/lib, /usr/obj/usr/src/usr.bin, and so forth.
                    748:                If a relative path is specified, it will be converted to an
                    749:                absolute path before being used.  Unsets MAKEOBJDIR.  See ``-O
                    750:                -obj'' for more information.
1.18      lukem     751:
1.60      apb       752:      -m mach   Set the value of MACHINE to mach, except in some special cases
                    753:                listed below.  This will also override any value of
                    754:                MACHINE_ARCH in the process environment with a value deduced
                    755:                from mach, unless -a is specified.  All cross builds require
                    756:                -m, but if unset on a NetBSD host, the host's value of MACHINE
                    757:                will be detected and used automatically.
                    758:
                    759:                Some machines support multiple values for MACHINE_ARCH.  The
                    760:                following special cases for the mach argument are defined to
                    761:                set the listed values of MACHINE and MACHINE_ARCH:
1.33      lukem     762:
                    763:                      mach          MACHINE    MACHINE_ARCH
1.60      apb       764:                      evbarm        evbarm     (not set)
                    765:                      evbarm-eb     evbarm     armeb
                    766:                      evbarm-el     evbarm     arm
1.33      lukem     767:                      evbmips       evbmips    (not set)
                    768:                      evbmips-eb    evbmips    mipseb
                    769:                      evbmips-el    evbmips    mipsel
                    770:                      evbsh3        evbsh3     (not set)
                    771:                      evbsh3-eb     evbsh3     sh3eb
                    772:                      evbsh3-el     evbsh3     sh3el
                    773:                      sbmips        sbmips     (not set)
                    774:                      sbmips-eb     sbmips     mipseb
                    775:                      sbmips-el     sbmips     mipsel
1.1       tv        776:
1.45      lukem     777:      -N noiselevel
1.46      lukem     778:                Set the ``noisyness'' level of the build, by setting
                    779:                MAKEVERBOSE to noiselevel.
1.45      lukem     780:
1.1       tv        781:      -n        Show the commands that would be executed by build.sh, but do
                    782:                not make any changes.  This is similar in concept to ``make
                    783:                -n''.
                    784:
1.18      lukem     785:      -O obj    Create an appropriate transform macro for MAKEOBJDIR that will
1.73      apb       786:                place the built object files under obj.  For instance, a set-
                    787:                ting of ``-O /usr/obj'' will place build-time files under
                    788:                /usr/obj/bin, /usr/obj/lib, /usr/obj/usr.bin, and so forth.  If
                    789:                a relative path is specified, it will be converted to an abso-
                    790:                lute path before being used.  Unsets MAKEOBJDIRPREFIX.
                    791:
                    792:                In normal use, exactly one of the -M or -O options should be
1.78      apb       793:                specified.  If neither -M nor -O is specified, then a default
                    794:                object directory will be chosen according to rules in
                    795:                <bsd.obj.mk>.  Relying on this default is not recommended
                    796:                because it is determined by complex rules that are influenced
                    797:                by the values of several variables and by the location of the
                    798:                source directory.
1.18      lukem     799:
1.34      lukem     800:      -o        Set the value of MKOBJDIRS to ``no''.  Otherwise, it will be
1.70      dholland  801:                automatically set to ``yes''.  This default is opposite to the
                    802:                behaviour when not using build.sh.
1.1       tv        803:
1.59      apb       804:      -R rel    Set the value of RELEASEDIR to rel.  If a relative path is
                    805:                specified, it will be converted to an absolute path before
                    806:                being used.
1.18      lukem     807:
1.1       tv        808:      -r        Remove the contents of DESTDIR and TOOLDIR before building
                    809:                (provides a clean starting point).  This will skip deleting
                    810:                DESTDIR if building on a native system to the root directory.
                    811:
1.72      perry     812:      -S seed   Change the value of BUILDSEED to seed.  This should rarely be
                    813:                necessary.
                    814:
1.59      apb       815:      -T tools  Set the value of TOOLDIR to tools.  If a relative path is spec-
                    816:                ified, it will be converted to an absolute path before being
1.70      dholland  817:                used.  If set, the bootstrap ``make'' will only be rebuilt if
                    818:                the source files for make(1) have changed.
1.18      lukem     819:
1.38      lukem     820:      -U        Set MKUNPRIVED=yes.
1.18      lukem     821:
1.38      lukem     822:      -u        Set MKUPDATE=yes.
1.1       tv        823:
1.21      lukem     824:      -V var=[value]
1.40      lukem     825:                Set the environment variable var to an optional value.  This is
                    826:                propagated to the nbmake wrapper.
1.21      lukem     827:
1.1       tv        828:      -w wrapper
                    829:                Create the nbmake wrapper script (see below) in a custom loca-
                    830:                tion, specified by wrapper.  This allows, for instance, to
                    831:                place the wrapper in PATH automatically.  Note that wrapper is
1.59      apb       832:                the full name of the file, not just a directory name.  If a
                    833:                relative path is specified, it will be converted to an absolute
                    834:                path before being used.
1.1       tv        835:
1.49      lukem     836:      -X x11src
1.59      apb       837:                Set the value of X11SRCDIR to x11src.  If a relative path is
                    838:                specified, it will be converted to an absolute path before
                    839:                being used.
1.49      lukem     840:
                    841:      -x        Set MKX11=yes.
                    842:
1.40      lukem     843:      -Z var    Unset ("zap") the environment variable var.  This is propagated
                    844:                to the nbmake wrapper.
                    845:
1.1       tv        846:    The "nbmake-MACHINE" wrapper script
                    847:      If using the build.sh script to build NetBSD, a nbmake-MACHINE script
                    848:      will be created in TOOLDIR/bin upon the first build to assist in building
                    849:      subtrees on a cross-compile host.
                    850:
                    851:      nbmake-MACHINE can be invoked in lieu of make(1), and will instead call
                    852:      the up-to-date version of ``nbmake'' installed into TOOLDIR/bin with sev-
                    853:      eral key variables pre-set, including MACHINE, MACHINE_ARCH, and TOOLDIR.
1.70      dholland  854:      nbmake-MACHINE will also set variables specified with -V, and unset vari-
                    855:      ables specified with -Z.
1.40      lukem     856:
1.1       tv        857:      This script can be symlinked into a directory listed in PATH, or called
                    858:      with an absolute path.
                    859:
1.16      lukem     860: EXAMPLES
1.78      apb       861:      1.   % ./build.sh [options] tools kernel=GENERIC
1.28      lukem     862:
                    863:           Build a new toolchain, and use the new toolchain to configure and
                    864:           build a new GENERIC kernel.
                    865:
1.78      apb       866:      2.   % ./build.sh [options] -U distribution
1.28      lukem     867:
1.30      lukem     868:           Using unprivileged mode, build a complete distribution to a DESTDIR
                    869:           directory that build.sh selects (and will display).
1.28      lukem     870:
1.78      apb       871:      3.   # ./build.sh [options] -U install=/
1.28      lukem     872:
1.29      lukem     873:           As root, install to / the distribution that was built by example 2.
                    874:           Even though this is run as root, -U is required so that the permis-
1.30      lukem     875:           sions stored in DESTDIR/METALOG are correctly applied to the files
                    876:           as they're copied to /.
1.28      lukem     877:
1.78      apb       878:      4.   % ./build.sh [options] -U -u release
1.28      lukem     879:
1.30      lukem     880:           Using unprivileged mode, build a complete release to DESTDIR and
                    881:           RELEASEDIR directories that build.sh selects (and will display).
1.38      lukem     882:           MKUPDATE=yes (-u) is set to prevent the ``make cleandir'', so that
                    883:           if this is run after example 2, it doesn't need to redo that portion
                    884:           of the release build.
1.16      lukem     885:
1.10      sommerfe  886: OBSOLETE VARIABLES
1.70      dholland  887:      NBUILDJOBS  Use the make(1) option -j instead.
1.15      lukem     888:
                    889:      USE_NEW_TOOLCHAIN
                    890:                  The new toolchain is now the default.  To disable, use
                    891:                  TOOLCHAIN_MISSING=yes.
1.10      sommerfe  892:
1.1       tv        893: SEE ALSO
1.62      apb       894:      make(1), hier(7), release(7), etcupdate(8), postinstall(8), sysinst(8),
1.61      apb       895:      pkgsrc/sysutils/cdrtools
1.1       tv        896:
                    897: HISTORY
1.15      lukem     898:      The build.sh based build scheme was introduced for NetBSD 1.6 as
                    899:      USE_NEW_TOOLCHAIN, and re-worked to TOOLCHAIN_MISSING after that.
1.1       tv        900:
1.78      apb       901: NetBSD                        September 10, 2008                        NetBSD

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