1 $NetBSD: UPDATING,v 1.166 2007/11/15 12:53:43 xtraeme Exp $
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.
7 For a more detailed description of the recommended way to build NetBSD
8 using build.sh, see the BUILDING file.
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.
14 See also: BUILDING, build.sh, Makefile.
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 appropriately or see GENERIC for more details.
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
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.
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.
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 file system will be relative to that file system - unless they
55 start /../ this is useful when the emulated root is a real install
57 This might affect symlinks that have been added to reference outside
61 The pckbc driver on sgimips IP32 has been removed. Use macekbc
62 instead. See the GENERIC32_IP3x kernel configuration for an
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.
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
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.
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/,
97 usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
98 as the installation images in distrib/
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.
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.
109 The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
110 available. Use net.inet{,6}.tcp{,6}.congctl.selected instead.
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.
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.
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'
129 Hints for a more successful build:
130 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
131 Use build.sh, but do not use its "expert mode":
132 This will automatically build the tools in the
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.
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.
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.
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:
150 a) cd /usr/src ; make cleandir
151 b) Add "OBJMACHINE=yes" to /etc/mk.conf
152 c) Add "MKOBJDIRS=yes" to /etc/mk.conf
153 d) cd /usr/src ; make build
154 Note that running "make obj" in a directory will create
155 in obj.$MACHINE directory.
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.)
168 This keeps critical utilities current enough to not choke
169 on any other part of the source tree that depends on up to
170 date functionality. If you use build.sh, you should not have
173 What to do if things don't work:
174 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
175 When things don't work there is usually a few things that commonly
178 This should be done automatically by make build.
179 2) cd share/mk && make install
180 Again, automatically done by make build.
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...
191 rm ...all obj directories...
192 make cleandir # yes, again
196 Failsafe rebuild of the entire tree:
197 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
198 If you really want to make sure the source tree is clean and
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.
207 if [ -z $NETBSDSRCDIR ] ; then
208 NETBSDSRCDIR=/usr/src
210 if [ \! -d $NETBSDSRCDIR ] ; then
211 echo Unable to find sources
214 find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
216 if [ -z $BSDOBJDIR ] ; then
219 if [ -d $BSDOBJDIR ] ; then
223 cd $NETBSDSRCDIR && make cleandir
236 Other problems and possible solutions:
237 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
238 Symptom:Complaints involving a Makefile.
239 Fix: Rebuild usr.bin/make:
240 cd usr.bin/make && make && make install
241 Or, a failsafe method if that doesn't work:
242 cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
244 Fix: Make sure .mk files are up to date.
245 cd share/mk && make install
247 Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
248 Fix: Rebuild usr.bin/config
251 Fix: Rebuild usr.bin/yacc
254 Fix: Rebuild usr.bin/lex
257 Fix: rm /usr/lib/libbfd.a
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)
265 Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type
266 Fix: Rebuild and install usr.bin/menuc
268 Symptom:mklocale not found during build in share/locale/ctype
269 Fix: Build and install usr.bin/mklocale
271 Symptom:undefined reference to `__assert13' or `__unsetenv13'
272 Fix: Rebuild and install lib/libc
274 Symptom:usr.bin/config fails to build.
275 Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
277 Symptom:undefined reference to `getprogname' or `setprogname'
278 Fix: Rebuild and install lib/libc
280 Symptom:lint does not understand the '-X' option
281 Fix: May need to build & install libs with NOLINT=1 before rebuilding lint