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Annotation of src/UPDATING, Revision 1.163

1.163   ! joerg       1: $NetBSD: UPDATING,v 1.162 2007/06/10 00:45:08 ad Exp $
1.1       abs         2:
1.123     jmc         3: This file (UPDATING) is intended to be a brief reference to recent
                      4: changes that might cause problems in the build process, and a guide for
                      5: what to do if something doesn't work.
1.1       abs         6:
1.123     jmc         7: For a more detailed description of the recommended way to build NetBSD
                      8: using build.sh, see the BUILDING file.
                      9:
                     10: Note that much of the advice in this UPDATING file was written before
                     11: build.sh existed.  Nevertheless, the advice here may be useful for
                     12: working around specific problems with build.sh.
                     13:
                     14: See also: BUILDING, build.sh, Makefile.
1.1       abs        15:
                     16: Recent changes:
                     17: ^^^^^^^^^^^^^^^
1.138     lukem      18:
1.163   ! joerg      19: 20070703:
        !            20:        nbinstall has been renamed as it calls the target specific and
        !            21:        the logic to pass down STRIP from mk been removed.  This forces
        !            22:        a re-installation of tools.
        !            23:
1.161     dsl        24: 20070422:
                     25:        The way OS emulations lookup filenames inside the emulation root
                     26:        has been changed.  Rather than modify the pathname (and copy back
                     27:        to userspace) namei() and lookup() directly check the emulation
                     28:        root. One side effect is that absolute symlinks inside the emulated
                     29:        root filesytem will be relative to that filesystem - unless they
                     30:        start /../ this is useful when the emulated root is a real install
                     31:        that has such links.
                     32:        This might affect symlinks that have been added to reference outside
                     33:        the emulated root.
                     34:
1.160     jmcneill   35: 20070412:
                     36:        The pckbc driver on sgimips IP32 has been removed. Use macekbc
                     37:        instead. See the GENERIC32_IP3x kernel configuration for an
                     38:        example.
                     39:
1.159     gdt        40: 20070319:
                     41:         src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so
                     42:         on many platforms due to incorrect flags settings.  If you
                     43:         updated and built after about 20070315, do "nbmake-$arch
                     44:        cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a
                     45:        rebuild of object files that might have been built
                     46:        incorrectly, and ensure that you have at least
                     47:        src/lib/libc/Makefile 1.130.
                     48:
1.158     dbj        49: 20070210:
                     50:         src/sys/sys/{sa.h,savar.h} were removed.
                     51:           find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \
                     52:               | xargs egrep -l '/sa.h|/savar.h' | xargs rm
                     53:         will allow dependencies on those files to get get rebuilt
                     54:
1.157     apb        55: 20070209:
                     56:         The threading model was changed when the newlock2 branch
                     57:         was merged to NetBSD-current.  If you boot with a new
                     58:         kernel (version 4.99.10), then you also need a new pthread
                     59:         library (/usr/lib/libpthread.so.0.7).  If you boot with
                     60:         an old kernel, then you need the old pthread library
                     61:         (/usr/lib/libpthread.so.0.6).  Provided you keep the kernel and
                     62:         the pthread library in sync, old threaded applications should
                     63:         continue to work with an old or new kernel.  Note that named(8)
                     64:        is the only threaded application in the base system.
                     65:
1.154     he         66: 20061214:
                     67:        Following the move of string_to_flags() and flags_to_string()
                     68:        from the bin/ls/ sources to libutil, users doing UPDATE builds
                     69:        will need to do a "make cleandir" in
                     70:                tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/,
                     71:                bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/,
1.156     he         72:                usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
                     73:                as the installation images in distrib/
1.154     he         74:        in order to excise stale references to the old stat_flags.h header
                     75:        file in the ls sources -- stat_flags.h has been removed.
                     76:
1.152     christos   77: 20061108:
                     78:        The configure script used in the src/tools/gcc compiler has been
                     79:        changed to indicate that our libc has ssp support built-in and
                     80:        does not depend on -lssp and -lssp-nonshared. You'll need to
                     81:        make clean in src/tools/gcc first to rebuild the compiler.
                     82:
1.151     rpaulo     83: 20061009:
                     84:        The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
                     85:        available. Use net.inet{,6}.tcp{,6}.congctl.selected instead.
                     86:
1.150     bjh21      87: 20060814:
                     88:        The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been
                     89:        withdrawn.  Use vidcvideo and pckbd instead.  See the GENERIC
                     90:        kernel configuration for an example.  X servers from the last
                     91:        few years should cope.
                     92:
1.149     christos   93: 20060703:
                     94:        MPACPI is no more. We always configure PCI interrupts using ACPI
                     95:        if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed
                     96:        to ACPI_SCANPCI. Thanks to work from fvdl.
                     97:
1.148     dogcow     98: 20060627:
                     99:        socket(2) has changed, and its system call has been versioned.
                    100:        For userlands with the old version of socket(2), make sure that
                    101:        your kernel has 'options COMPAT_30' set, or else 'bad system call'
                    102:        errors will result.
                    103:
1.1       abs       104: Hints for a more successful build:
                    105: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1.123     jmc       106:     Use build.sh, but do not use its "expert mode":
1.132     jmmv      107:        This will automatically build the tools in the
1.123     jmc       108:           correct order, and it will keep the tools and the
                    109:           new build products from interfering with the running
                    110:           system.  This will allow you to ignore most of the
                    111:           other advice in this file.
1.2       mrg       112:     Build a new kernel first:
                    113:        This makes sure that any new system calls or features
                    114:           expected by the new userland will be present.  This
                    115:           helps to avoid critical errors when upgrading.
1.1       abs       116:     Use object directories:
                    117:        This helps to keep stale object
                    118:           files from polluting the build if a Makefile "forgets"
                    119:           about one.  It also makes it easier to clean up after
                    120:           a build.  It's also necessary if you want to use the
                    121:           same source tree for multiple machines.
1.123     jmc       122:           To use object directories with build.sh:
                    123:            a) invoke build.sh with the "-M" or "-O" options.
                    124:           To use object directories without using build.sh:
1.1       abs       125:            a) cd /usr/src ; make cleandir
1.2       mrg       126:            b) Add "OBJMACHINE=yes" to /etc/mk.conf
                    127:            c) Add "MKOBJDIRS=yes" to /etc/mk.conf
1.1       abs       128:            d) cd /usr/src ; make build
1.2       mrg       129:           Note that running "make obj" in a directory will create
                    130:           in obj.$MACHINE directory.
1.1       abs       131:     Build to a DESTDIR:
1.123     jmc       132:        This helps to keep old installed files (especially libraries)
                    133:           from interfering with the new build.
                    134:           To build to a DESTDIR with build.sh, use the "-D" option.
                    135:           To build to a DESTDIR without using build.sh, set the DESTDIR
                    136:           environment variable before running make build.  It should be
                    137:           set to the pathname of an initially empty directory.
                    138:           Problems: if you do not use build.sh, you might need to
                    139:                update critical utilities without using DESTDIR since
                    140:                nothing is executed from what is installed in DESTDIR.
                    141:                (See critical utils, below.)
1.1       abs       142:     Build often:
                    143:        This keeps critical utilities current enough to not choke
                    144:        on any other part of the source tree that depends on up to
1.123     jmc       145:        date functionality.  If you use build.sh, you should not have
                    146:        this problem.
1.1       abs       147:
                    148: What to do if things don't work:
                    149: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    150: When things don't work there is usually a few things that commonly
                    151: should be done.
                    152:     1) make includes
                    153:        This should be done automatically by make build.
                    154:     2)  cd share/mk && make install
                    155:        Again, automatically done by make build.
                    156:
                    157: Failsafe rebuild of a small part of the tree:
                    158: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    159: To make sure you rebuild something correctly you want to do
                    160: something like the following:
                    161:     1)  Make sure the includes and .mk files are up to date.
                    162:     2)  Make sure any program used to build the particular
                    163:        utility is up to date.  (yacc, lex, etc...)
                    164:     3)  cd ...path/to/util...
                    165:        make cleandir
                    166:        rm ...all obj directories...
                    167:        make cleandir                   # yes, again
                    168:        make obj
                    169:        make depend && make
                    170:
                    171: Failsafe rebuild of the entire tree:
                    172: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    173: If you really want to make sure the source tree is clean and
1.2       mrg       174: ready for a build try the following.  Note that sourcing /etc/mk.conf
                    175: (a make(1) Makefile) in this manner is not right, and will not work
                    176: for anyone who uses any make(1) features in /etc/mk.conf.
1.1       abs       177:
                    178: ---cut here---
                    179: #!/bin/sh
                    180: . /etc/mk.conf
                    181:
1.58      lukem     182: if [ -z $NETBSDSRCDIR ] ; then
                    183:     NETBSDSRCDIR=/usr/src
1.1       abs       184: fi
1.58      lukem     185: if [ \! -d $NETBSDSRCDIR ] ; then
1.1       abs       186:     echo Unable to find sources
                    187:     exit 1
                    188: fi
1.58      lukem     189: find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
1.1       abs       190:
                    191: if [ -z $BSDOBJDIR ] ; then
                    192:     BSDOBJDIR=/usr/obj
                    193: fi
                    194: if [ -d $BSDOBJDIR ] ; then
                    195:     rm -rf $BSDOBJDIR
                    196: fi
                    197:
1.58      lukem     198: cd $NETBSDSRCDIR && make cleandir
1.1       abs       199:
                    200: ---cut here---
                    201:
                    202: Critical utilities:
                    203: ^^^^^^^^^^^^^^^^^^^
1.3       itojun    204:        usr.bin/compile_et
1.1       abs       205:        usr.bin/make
                    206:        usr.bin/yacc
                    207:        usr.bin/lex
1.11      lukem     208:        usr.bin/xlint
1.142     drochner  209:        usr.bin/config
1.1       abs       210:
1.34      simonb    211: Other problems and possible solutions:
1.1       abs       212: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    213: Symptom:Complaints involving a Makefile.
1.17      erh       214: Fix:   Rebuild usr.bin/make:
                    215:        cd usr.bin/make && make && make install
1.111     simonb    216:        Or, a failsafe method if that doesn't work:
1.17      erh       217:        cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
                    218:
1.1       abs       219: Fix:   Make sure .mk files are up to date.
                    220:        cd share/mk && make install
1.2       mrg       221:
                    222: Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
1.142     drochner  223: Fix:   Rebuild usr.bin/config
1.1       abs       224:
                    225: Symptom:
                    226: Fix:   Rebuild usr.bin/yacc
                    227:
                    228: Symptom:
                    229: Fix:   Rebuild usr.bin/lex
                    230:
                    231: Symptom:
                    232: Fix:   rm /usr/lib/libbfd.a
1.4       itojun    233:
                    234: Symptom:Obsolete intermediate files are used during compilation
                    235: Fix:   Try the following sequence of commands in the directory in question.
                    236:        make cleandir; rm `make print-objdir`; make cleandir; make obj
                    237:        (If you built the tree without "make obj" in the past, obsolete files
                    238:        may remain.  The command tries to clean everything up)
1.5       wiz       239:
                    240: Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type
                    241: Fix:   Rebuild and install usr.bin/menuc
1.12      itojun    242:
                    243: Symptom:mklocale not found during build in share/locale/ctype
                    244: Fix:   Build and install usr.bin/mklocale
1.13      dogcow    245:
1.86      kleink    246: Symptom:undefined reference to `__assert13' or `__unsetenv13'
1.13      dogcow    247: Fix:    Rebuild and install lib/libc
                    248:
1.142     drochner  249: Symptom:usr.bin/config fails to build.
1.19      cgd       250: Fix:   Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
1.13      dogcow    251:
1.19      cgd       252: Symptom:undefined reference to `getprogname' or `setprogname'
                    253: Fix:    Rebuild and install lib/libc
1.24      abs       254:
                    255: Symptom:lint does not understand the '-X' option
                    256: Fix:    May need to build & install libs with NOLINT=1 before rebuilding lint

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