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Annotation of src/UPDATING, Revision 1.164

1.164   ! gdt         1: $NetBSD: UPDATING,v 1.163 2007/07/03 16:35:47 joerg 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:
1.164   ! gdt        19: 20070913:
        !            20:        A latent bug in dhclient/dhcpd that caused it to be unable to
        !            21:        enumerate interfaces was fixed.  The bug began to cause
        !            22:        problems after 20070911 when the kernel's SIOCGIFCONF
        !            23:        implementation was repaired.  From 20070529 to 20070911 racoon
        !            24:        could not enumerate interfaces.  (These are noted because
        !            25:        normal kernel/userspace version matching hygiene is not
        !            26:        sufficient to avoid this problem.)  Ensure that both kernel
        !            27:        and userland are from after 20070913.
        !            28:
1.163     joerg      29: 20070703:
                     30:        nbinstall has been renamed as it calls the target specific and
                     31:        the logic to pass down STRIP from mk been removed.  This forces
                     32:        a re-installation of tools.
                     33:
1.161     dsl        34: 20070422:
                     35:        The way OS emulations lookup filenames inside the emulation root
                     36:        has been changed.  Rather than modify the pathname (and copy back
                     37:        to userspace) namei() and lookup() directly check the emulation
                     38:        root. One side effect is that absolute symlinks inside the emulated
                     39:        root filesytem will be relative to that filesystem - unless they
                     40:        start /../ this is useful when the emulated root is a real install
                     41:        that has such links.
                     42:        This might affect symlinks that have been added to reference outside
                     43:        the emulated root.
                     44:
1.160     jmcneill   45: 20070412:
                     46:        The pckbc driver on sgimips IP32 has been removed. Use macekbc
                     47:        instead. See the GENERIC32_IP3x kernel configuration for an
                     48:        example.
                     49:
1.159     gdt        50: 20070319:
                     51:         src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so
                     52:         on many platforms due to incorrect flags settings.  If you
                     53:         updated and built after about 20070315, do "nbmake-$arch
                     54:        cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a
                     55:        rebuild of object files that might have been built
                     56:        incorrectly, and ensure that you have at least
                     57:        src/lib/libc/Makefile 1.130.
                     58:
1.158     dbj        59: 20070210:
                     60:         src/sys/sys/{sa.h,savar.h} were removed.
                     61:           find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \
                     62:               | xargs egrep -l '/sa.h|/savar.h' | xargs rm
                     63:         will allow dependencies on those files to get get rebuilt
                     64:
1.157     apb        65: 20070209:
                     66:         The threading model was changed when the newlock2 branch
                     67:         was merged to NetBSD-current.  If you boot with a new
                     68:         kernel (version 4.99.10), then you also need a new pthread
                     69:         library (/usr/lib/libpthread.so.0.7).  If you boot with
                     70:         an old kernel, then you need the old pthread library
                     71:         (/usr/lib/libpthread.so.0.6).  Provided you keep the kernel and
                     72:         the pthread library in sync, old threaded applications should
                     73:         continue to work with an old or new kernel.  Note that named(8)
                     74:        is the only threaded application in the base system.
                     75:
1.154     he         76: 20061214:
                     77:        Following the move of string_to_flags() and flags_to_string()
                     78:        from the bin/ls/ sources to libutil, users doing UPDATE builds
                     79:        will need to do a "make cleandir" in
                     80:                tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/,
                     81:                bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/,
1.156     he         82:                usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
                     83:                as the installation images in distrib/
1.154     he         84:        in order to excise stale references to the old stat_flags.h header
                     85:        file in the ls sources -- stat_flags.h has been removed.
                     86:
1.152     christos   87: 20061108:
                     88:        The configure script used in the src/tools/gcc compiler has been
                     89:        changed to indicate that our libc has ssp support built-in and
                     90:        does not depend on -lssp and -lssp-nonshared. You'll need to
                     91:        make clean in src/tools/gcc first to rebuild the compiler.
                     92:
1.151     rpaulo     93: 20061009:
                     94:        The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
                     95:        available. Use net.inet{,6}.tcp{,6}.congctl.selected instead.
                     96:
1.150     bjh21      97: 20060814:
                     98:        The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been
                     99:        withdrawn.  Use vidcvideo and pckbd instead.  See the GENERIC
                    100:        kernel configuration for an example.  X servers from the last
                    101:        few years should cope.
                    102:
1.149     christos  103: 20060703:
                    104:        MPACPI is no more. We always configure PCI interrupts using ACPI
                    105:        if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed
                    106:        to ACPI_SCANPCI. Thanks to work from fvdl.
                    107:
1.148     dogcow    108: 20060627:
                    109:        socket(2) has changed, and its system call has been versioned.
                    110:        For userlands with the old version of socket(2), make sure that
                    111:        your kernel has 'options COMPAT_30' set, or else 'bad system call'
                    112:        errors will result.
                    113:
1.1       abs       114: Hints for a more successful build:
                    115: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1.123     jmc       116:     Use build.sh, but do not use its "expert mode":
1.132     jmmv      117:        This will automatically build the tools in the
1.123     jmc       118:           correct order, and it will keep the tools and the
                    119:           new build products from interfering with the running
                    120:           system.  This will allow you to ignore most of the
                    121:           other advice in this file.
1.2       mrg       122:     Build a new kernel first:
                    123:        This makes sure that any new system calls or features
                    124:           expected by the new userland will be present.  This
                    125:           helps to avoid critical errors when upgrading.
1.1       abs       126:     Use object directories:
                    127:        This helps to keep stale object
                    128:           files from polluting the build if a Makefile "forgets"
                    129:           about one.  It also makes it easier to clean up after
                    130:           a build.  It's also necessary if you want to use the
                    131:           same source tree for multiple machines.
1.123     jmc       132:           To use object directories with build.sh:
                    133:            a) invoke build.sh with the "-M" or "-O" options.
                    134:           To use object directories without using build.sh:
1.1       abs       135:            a) cd /usr/src ; make cleandir
1.2       mrg       136:            b) Add "OBJMACHINE=yes" to /etc/mk.conf
                    137:            c) Add "MKOBJDIRS=yes" to /etc/mk.conf
1.1       abs       138:            d) cd /usr/src ; make build
1.2       mrg       139:           Note that running "make obj" in a directory will create
                    140:           in obj.$MACHINE directory.
1.1       abs       141:     Build to a DESTDIR:
1.123     jmc       142:        This helps to keep old installed files (especially libraries)
                    143:           from interfering with the new build.
                    144:           To build to a DESTDIR with build.sh, use the "-D" option.
                    145:           To build to a DESTDIR without using build.sh, set the DESTDIR
                    146:           environment variable before running make build.  It should be
                    147:           set to the pathname of an initially empty directory.
                    148:           Problems: if you do not use build.sh, you might need to
                    149:                update critical utilities without using DESTDIR since
                    150:                nothing is executed from what is installed in DESTDIR.
                    151:                (See critical utils, below.)
1.1       abs       152:     Build often:
                    153:        This keeps critical utilities current enough to not choke
                    154:        on any other part of the source tree that depends on up to
1.123     jmc       155:        date functionality.  If you use build.sh, you should not have
                    156:        this problem.
1.1       abs       157:
                    158: What to do if things don't work:
                    159: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    160: When things don't work there is usually a few things that commonly
                    161: should be done.
                    162:     1) make includes
                    163:        This should be done automatically by make build.
                    164:     2)  cd share/mk && make install
                    165:        Again, automatically done by make build.
                    166:
                    167: Failsafe rebuild of a small part of the tree:
                    168: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    169: To make sure you rebuild something correctly you want to do
                    170: something like the following:
                    171:     1)  Make sure the includes and .mk files are up to date.
                    172:     2)  Make sure any program used to build the particular
                    173:        utility is up to date.  (yacc, lex, etc...)
                    174:     3)  cd ...path/to/util...
                    175:        make cleandir
                    176:        rm ...all obj directories...
                    177:        make cleandir                   # yes, again
                    178:        make obj
                    179:        make depend && make
                    180:
                    181: Failsafe rebuild of the entire tree:
                    182: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    183: If you really want to make sure the source tree is clean and
1.2       mrg       184: ready for a build try the following.  Note that sourcing /etc/mk.conf
                    185: (a make(1) Makefile) in this manner is not right, and will not work
                    186: for anyone who uses any make(1) features in /etc/mk.conf.
1.1       abs       187:
                    188: ---cut here---
                    189: #!/bin/sh
                    190: . /etc/mk.conf
                    191:
1.58      lukem     192: if [ -z $NETBSDSRCDIR ] ; then
                    193:     NETBSDSRCDIR=/usr/src
1.1       abs       194: fi
1.58      lukem     195: if [ \! -d $NETBSDSRCDIR ] ; then
1.1       abs       196:     echo Unable to find sources
                    197:     exit 1
                    198: fi
1.58      lukem     199: find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
1.1       abs       200:
                    201: if [ -z $BSDOBJDIR ] ; then
                    202:     BSDOBJDIR=/usr/obj
                    203: fi
                    204: if [ -d $BSDOBJDIR ] ; then
                    205:     rm -rf $BSDOBJDIR
                    206: fi
                    207:
1.58      lukem     208: cd $NETBSDSRCDIR && make cleandir
1.1       abs       209:
                    210: ---cut here---
                    211:
                    212: Critical utilities:
                    213: ^^^^^^^^^^^^^^^^^^^
1.3       itojun    214:        usr.bin/compile_et
1.1       abs       215:        usr.bin/make
                    216:        usr.bin/yacc
                    217:        usr.bin/lex
1.11      lukem     218:        usr.bin/xlint
1.142     drochner  219:        usr.bin/config
1.1       abs       220:
1.34      simonb    221: Other problems and possible solutions:
1.1       abs       222: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    223: Symptom:Complaints involving a Makefile.
1.17      erh       224: Fix:   Rebuild usr.bin/make:
                    225:        cd usr.bin/make && make && make install
1.111     simonb    226:        Or, a failsafe method if that doesn't work:
1.17      erh       227:        cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
                    228:
1.1       abs       229: Fix:   Make sure .mk files are up to date.
                    230:        cd share/mk && make install
1.2       mrg       231:
                    232: Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
1.142     drochner  233: Fix:   Rebuild usr.bin/config
1.1       abs       234:
                    235: Symptom:
                    236: Fix:   Rebuild usr.bin/yacc
                    237:
                    238: Symptom:
                    239: Fix:   Rebuild usr.bin/lex
                    240:
                    241: Symptom:
                    242: Fix:   rm /usr/lib/libbfd.a
1.4       itojun    243:
                    244: Symptom:Obsolete intermediate files are used during compilation
                    245: Fix:   Try the following sequence of commands in the directory in question.
                    246:        make cleandir; rm `make print-objdir`; make cleandir; make obj
                    247:        (If you built the tree without "make obj" in the past, obsolete files
                    248:        may remain.  The command tries to clean everything up)
1.5       wiz       249:
                    250: Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type
                    251: Fix:   Rebuild and install usr.bin/menuc
1.12      itojun    252:
                    253: Symptom:mklocale not found during build in share/locale/ctype
                    254: Fix:   Build and install usr.bin/mklocale
1.13      dogcow    255:
1.86      kleink    256: Symptom:undefined reference to `__assert13' or `__unsetenv13'
1.13      dogcow    257: Fix:    Rebuild and install lib/libc
                    258:
1.142     drochner  259: Symptom:usr.bin/config fails to build.
1.19      cgd       260: Fix:   Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
1.13      dogcow    261:
1.19      cgd       262: Symptom:undefined reference to `getprogname' or `setprogname'
                    263: Fix:    Rebuild and install lib/libc
1.24      abs       264:
                    265: Symptom:lint does not understand the '-X' option
                    266: Fix:    May need to build & install libs with NOLINT=1 before rebuilding lint

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