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Annotation of src/UPDATING, Revision 1.166

1.166   ! xtraeme     1: $NetBSD: UPDATING,v 1.165 2007/10/28 18:13:38 jmmv 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:
1.166   ! xtraeme    19: 20071115:
        !            20:        The it(4) driver has been renamed to itesio(4) and the old port
        !            21:        argument specified in the kernel configuration file is not valid
        !            22:        anymore. The itesio(4) driver now uses the Super I/O address port
        !            23:        rather than the EC address port. Please update your kernel
        !            24:        configuration file appropiately or see GENERIC for more details.
        !            25:
1.165     jmmv       26: 20071028:
                     27:        The pccons(4) driver has been removed from the NetBSD/shark port.
                     28:        You need to update any custom kernel configuration file you have
                     29:        to remove any references to pccons (which includes removing the
                     30:        now useless XSERVER option) and replace them with the correct
                     31:        entries for the wscons driver.  See the GENERIC configuration file
                     32:        for more details.
                     33:
1.164     gdt        34: 20070913:
                     35:        A latent bug in dhclient/dhcpd that caused it to be unable to
                     36:        enumerate interfaces was fixed.  The bug began to cause
                     37:        problems after 20070911 when the kernel's SIOCGIFCONF
                     38:        implementation was repaired.  From 20070529 to 20070911 racoon
                     39:        could not enumerate interfaces.  (These are noted because
                     40:        normal kernel/userspace version matching hygiene is not
                     41:        sufficient to avoid this problem.)  Ensure that both kernel
                     42:        and userland are from after 20070913.
                     43:
1.163     joerg      44: 20070703:
                     45:        nbinstall has been renamed as it calls the target specific and
                     46:        the logic to pass down STRIP from mk been removed.  This forces
                     47:        a re-installation of tools.
                     48:
1.161     dsl        49: 20070422:
                     50:        The way OS emulations lookup filenames inside the emulation root
                     51:        has been changed.  Rather than modify the pathname (and copy back
                     52:        to userspace) namei() and lookup() directly check the emulation
                     53:        root. One side effect is that absolute symlinks inside the emulated
                     54:        root filesytem will be relative to that filesystem - unless they
                     55:        start /../ this is useful when the emulated root is a real install
                     56:        that has such links.
                     57:        This might affect symlinks that have been added to reference outside
                     58:        the emulated root.
                     59:
1.160     jmcneill   60: 20070412:
                     61:        The pckbc driver on sgimips IP32 has been removed. Use macekbc
                     62:        instead. See the GENERIC32_IP3x kernel configuration for an
                     63:        example.
                     64:
1.159     gdt        65: 20070319:
                     66:         src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so
                     67:         on many platforms due to incorrect flags settings.  If you
                     68:         updated and built after about 20070315, do "nbmake-$arch
                     69:        cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a
                     70:        rebuild of object files that might have been built
                     71:        incorrectly, and ensure that you have at least
                     72:        src/lib/libc/Makefile 1.130.
                     73:
1.158     dbj        74: 20070210:
                     75:         src/sys/sys/{sa.h,savar.h} were removed.
                     76:           find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \
                     77:               | xargs egrep -l '/sa.h|/savar.h' | xargs rm
                     78:         will allow dependencies on those files to get get rebuilt
                     79:
1.157     apb        80: 20070209:
                     81:         The threading model was changed when the newlock2 branch
                     82:         was merged to NetBSD-current.  If you boot with a new
                     83:         kernel (version 4.99.10), then you also need a new pthread
                     84:         library (/usr/lib/libpthread.so.0.7).  If you boot with
                     85:         an old kernel, then you need the old pthread library
                     86:         (/usr/lib/libpthread.so.0.6).  Provided you keep the kernel and
                     87:         the pthread library in sync, old threaded applications should
                     88:         continue to work with an old or new kernel.  Note that named(8)
                     89:        is the only threaded application in the base system.
                     90:
1.154     he         91: 20061214:
                     92:        Following the move of string_to_flags() and flags_to_string()
                     93:        from the bin/ls/ sources to libutil, users doing UPDATE builds
                     94:        will need to do a "make cleandir" in
                     95:                tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/,
                     96:                bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/,
1.156     he         97:                usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
                     98:                as the installation images in distrib/
1.154     he         99:        in order to excise stale references to the old stat_flags.h header
                    100:        file in the ls sources -- stat_flags.h has been removed.
                    101:
1.152     christos  102: 20061108:
                    103:        The configure script used in the src/tools/gcc compiler has been
                    104:        changed to indicate that our libc has ssp support built-in and
                    105:        does not depend on -lssp and -lssp-nonshared. You'll need to
                    106:        make clean in src/tools/gcc first to rebuild the compiler.
                    107:
1.151     rpaulo    108: 20061009:
                    109:        The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
                    110:        available. Use net.inet{,6}.tcp{,6}.congctl.selected instead.
                    111:
1.150     bjh21     112: 20060814:
                    113:        The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been
                    114:        withdrawn.  Use vidcvideo and pckbd instead.  See the GENERIC
                    115:        kernel configuration for an example.  X servers from the last
                    116:        few years should cope.
                    117:
1.149     christos  118: 20060703:
                    119:        MPACPI is no more. We always configure PCI interrupts using ACPI
                    120:        if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed
                    121:        to ACPI_SCANPCI. Thanks to work from fvdl.
                    122:
1.148     dogcow    123: 20060627:
                    124:        socket(2) has changed, and its system call has been versioned.
                    125:        For userlands with the old version of socket(2), make sure that
                    126:        your kernel has 'options COMPAT_30' set, or else 'bad system call'
                    127:        errors will result.
                    128:
1.1       abs       129: Hints for a more successful build:
                    130: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1.123     jmc       131:     Use build.sh, but do not use its "expert mode":
1.132     jmmv      132:        This will automatically build the tools in the
1.123     jmc       133:           correct order, and it will keep the tools and the
                    134:           new build products from interfering with the running
                    135:           system.  This will allow you to ignore most of the
                    136:           other advice in this file.
1.2       mrg       137:     Build a new kernel first:
                    138:        This makes sure that any new system calls or features
                    139:           expected by the new userland will be present.  This
                    140:           helps to avoid critical errors when upgrading.
1.1       abs       141:     Use object directories:
                    142:        This helps to keep stale object
                    143:           files from polluting the build if a Makefile "forgets"
                    144:           about one.  It also makes it easier to clean up after
                    145:           a build.  It's also necessary if you want to use the
                    146:           same source tree for multiple machines.
1.123     jmc       147:           To use object directories with build.sh:
                    148:            a) invoke build.sh with the "-M" or "-O" options.
                    149:           To use object directories without using build.sh:
1.1       abs       150:            a) cd /usr/src ; make cleandir
1.2       mrg       151:            b) Add "OBJMACHINE=yes" to /etc/mk.conf
                    152:            c) Add "MKOBJDIRS=yes" to /etc/mk.conf
1.1       abs       153:            d) cd /usr/src ; make build
1.2       mrg       154:           Note that running "make obj" in a directory will create
                    155:           in obj.$MACHINE directory.
1.1       abs       156:     Build to a DESTDIR:
1.123     jmc       157:        This helps to keep old installed files (especially libraries)
                    158:           from interfering with the new build.
                    159:           To build to a DESTDIR with build.sh, use the "-D" option.
                    160:           To build to a DESTDIR without using build.sh, set the DESTDIR
                    161:           environment variable before running make build.  It should be
                    162:           set to the pathname of an initially empty directory.
                    163:           Problems: if you do not use build.sh, you might need to
                    164:                update critical utilities without using DESTDIR since
                    165:                nothing is executed from what is installed in DESTDIR.
                    166:                (See critical utils, below.)
1.1       abs       167:     Build often:
                    168:        This keeps critical utilities current enough to not choke
                    169:        on any other part of the source tree that depends on up to
1.123     jmc       170:        date functionality.  If you use build.sh, you should not have
                    171:        this problem.
1.1       abs       172:
                    173: What to do if things don't work:
                    174: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    175: When things don't work there is usually a few things that commonly
                    176: should be done.
                    177:     1) make includes
                    178:        This should be done automatically by make build.
                    179:     2)  cd share/mk && make install
                    180:        Again, automatically done by make build.
                    181:
                    182: Failsafe rebuild of a small part of the tree:
                    183: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    184: To make sure you rebuild something correctly you want to do
                    185: something like the following:
                    186:     1)  Make sure the includes and .mk files are up to date.
                    187:     2)  Make sure any program used to build the particular
                    188:        utility is up to date.  (yacc, lex, etc...)
                    189:     3)  cd ...path/to/util...
                    190:        make cleandir
                    191:        rm ...all obj directories...
                    192:        make cleandir                   # yes, again
                    193:        make obj
                    194:        make depend && make
                    195:
                    196: Failsafe rebuild of the entire tree:
                    197: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    198: If you really want to make sure the source tree is clean and
1.2       mrg       199: ready for a build try the following.  Note that sourcing /etc/mk.conf
                    200: (a make(1) Makefile) in this manner is not right, and will not work
                    201: for anyone who uses any make(1) features in /etc/mk.conf.
1.1       abs       202:
                    203: ---cut here---
                    204: #!/bin/sh
                    205: . /etc/mk.conf
                    206:
1.58      lukem     207: if [ -z $NETBSDSRCDIR ] ; then
                    208:     NETBSDSRCDIR=/usr/src
1.1       abs       209: fi
1.58      lukem     210: if [ \! -d $NETBSDSRCDIR ] ; then
1.1       abs       211:     echo Unable to find sources
                    212:     exit 1
                    213: fi
1.58      lukem     214: find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
1.1       abs       215:
                    216: if [ -z $BSDOBJDIR ] ; then
                    217:     BSDOBJDIR=/usr/obj
                    218: fi
                    219: if [ -d $BSDOBJDIR ] ; then
                    220:     rm -rf $BSDOBJDIR
                    221: fi
                    222:
1.58      lukem     223: cd $NETBSDSRCDIR && make cleandir
1.1       abs       224:
                    225: ---cut here---
                    226:
                    227: Critical utilities:
                    228: ^^^^^^^^^^^^^^^^^^^
1.3       itojun    229:        usr.bin/compile_et
1.1       abs       230:        usr.bin/make
                    231:        usr.bin/yacc
                    232:        usr.bin/lex
1.11      lukem     233:        usr.bin/xlint
1.142     drochner  234:        usr.bin/config
1.1       abs       235:
1.34      simonb    236: Other problems and possible solutions:
1.1       abs       237: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    238: Symptom:Complaints involving a Makefile.
1.17      erh       239: Fix:   Rebuild usr.bin/make:
                    240:        cd usr.bin/make && make && make install
1.111     simonb    241:        Or, a failsafe method if that doesn't work:
1.17      erh       242:        cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
                    243:
1.1       abs       244: Fix:   Make sure .mk files are up to date.
                    245:        cd share/mk && make install
1.2       mrg       246:
                    247: Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
1.142     drochner  248: Fix:   Rebuild usr.bin/config
1.1       abs       249:
                    250: Symptom:
                    251: Fix:   Rebuild usr.bin/yacc
                    252:
                    253: Symptom:
                    254: Fix:   Rebuild usr.bin/lex
                    255:
                    256: Symptom:
                    257: Fix:   rm /usr/lib/libbfd.a
1.4       itojun    258:
                    259: Symptom:Obsolete intermediate files are used during compilation
                    260: Fix:   Try the following sequence of commands in the directory in question.
                    261:        make cleandir; rm `make print-objdir`; make cleandir; make obj
                    262:        (If you built the tree without "make obj" in the past, obsolete files
                    263:        may remain.  The command tries to clean everything up)
1.5       wiz       264:
                    265: Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type
                    266: Fix:   Rebuild and install usr.bin/menuc
1.12      itojun    267:
                    268: Symptom:mklocale not found during build in share/locale/ctype
                    269: Fix:   Build and install usr.bin/mklocale
1.13      dogcow    270:
1.86      kleink    271: Symptom:undefined reference to `__assert13' or `__unsetenv13'
1.13      dogcow    272: Fix:    Rebuild and install lib/libc
                    273:
1.142     drochner  274: Symptom:usr.bin/config fails to build.
1.19      cgd       275: Fix:   Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
1.13      dogcow    276:
1.19      cgd       277: Symptom:undefined reference to `getprogname' or `setprogname'
                    278: Fix:    Rebuild and install lib/libc
1.24      abs       279:
                    280: Symptom:lint does not understand the '-X' option
                    281: Fix:    May need to build & install libs with NOLINT=1 before rebuilding lint

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