1 $NetBSD: UPDATING,v 1.189 2009/01/14 15:53:29 hubertf 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 time_t and dev_t have been bumped to 64 bit quantities. To upgrade:
21 1. Make sure your kernel has COMPAT_50 in it. Build and install.
22 This is needed even in the MODULAR kernel because there is
23 conditionally compiled code in rtsock.c.
24 2. make sure build.sh completes and the binaries in a chroot work
26 3. If you don't use build.sh and you build directly to root, and
27 your build breaks in the middle, don't despair. Make sure headers
28 are installed properly, and start building libraries first libc
29 and libutil, install them and then continue building all the
30 libraries in src/lib and src/gnu/lib and install them. Once
31 the new libraries are installed, you can restart the build.
32 4. If you compile packages and you notice link time warnings,
33 rebuild the required packages to update their shared libraries.
34 Any package you rebuild will require rebuilding all the packages
36 5. Next time you run pwd_mkdb with the new binary, the file
37 will be upgraded and it will not be backwards compatible.
38 6. The utmpx/wtmpx files (/var/run/utmpx and /var/log/wtmpx, see
39 lastlogx(5)) have been versioned, and there is a heuristic
40 for utmp. You are better off removing the old files after
41 upgrading. The automated clearing of /var/run during
42 boot, and the automated rotating of files in /var/log by
43 newsyslog(8), may mean that you do not have to remove the
45 7. The optional accounting file (/var/account/acct, see
46 accton(8)) has not been versioned, and will need to be
47 removed. The automatic rotation of the accounting file by
48 /etc/daily limits the bad consequences of failure to remove
52 config(1) has been updated, and one of the files it creates -
53 swapnetbsd.o - has changed format. You need to rebuild config
54 (done automatically by build.sh) and then you need to rerun
55 config on all kernel configuration files before rebuilding those
59 If you build with MKX11=no, you should remove /etc/rc.d/xdm and
60 /etc/rc.d/xfs from DESTDIR because those files were moved to the xetc
61 set and will appear as extra files for MKX11=no update builds.
64 On i386, various kernel options(4) in GENERIC including
65 file systems have been disabled and moved into kernel modules.
66 Before trying a new GENERIC kernel, you have to prepare the
67 following files as well as a new GENERIC kernel:
69 - build and install kernel modules from src/sys/modules
71 - install the latest bootloader, which will load a module
72 for the file system from which the kernel is loaded automatically
74 If you have to load your kernel from a file system which is not of
75 the same type as the root file system, you have to load the necessary
76 file system module manually on the boot prompt or in the boot.cfg file.
79 If you built and installed a libc from sources between
80 2008/08/20 and 2008/08/26 you got a broken strtouq(3)
81 which results in false errors reported by lint(1).
82 Since this breaks the libc build itself, manual help is
83 needed -- lint must be disabled temporarily, e.g.:
84 $ (cd lib/libc && make MKLINT=no dependall install)
87 MKDEBUG build was broken because the .depend files did not know
88 about .go files. You need to remove all .depend files and rebuild.
91 WAPBL (metadata journaling support) has been added, but at this
92 time isn't backwards compatible with pre-WAPBL aware kernels
93 and userland (fsck_ffs in particular). Please make sure you
94 don't use a journaled filesystem with an older kernel/userland,
95 especially an uncleanly mounted journaled filesystem. WAPBL
96 also requires the super block to be in the UFS2 format. You
97 can use fsck_ffs -c 4 to update the superblock format.
100 Assembler warnings are now fatal if $WARNS>0 and $NOGCCERROR
104 The ioctl number of DRVSUSPENDDEV command on /dev/drvctl changed
105 from 125 (conflicted with DRVCTLCOMMAND) to 129. The drvctl(8)
106 utility needs to be rebuilt and reinstalled as older binaries
107 won't work correctly. The following sequence of commands:
109 $ (cd sys/sys/ && nbmake-$arch includes)
110 $ (cd sbin/drvctl/ && nbmake-$arch clean)
111 $ (cd sbin/drvctl/ && nbmake-$arch all)
113 leaves new drvctl utility in sbin/drvctl build directory.
116 The <bsd.lib.mk> variable MKPRIVATELIB was renamed to LIBISPRIVATE.
119 For a while, unprivileged UPDATE builds would fail to
120 succeed at the checkflist stage, complaining that
121 ${DESTDIR}/stand/<arch>/ did not exist. A fix for this
122 problem was committed to share/mk/bsd.kmodule.mk, revision 1.9.
123 If you already hit this problem, update the .mk file,
124 remove ${DESTDIR}/stand/<arch>, and re-run the build.
127 Linker warnings are now fatal if $WARNS>0.
130 The posix_fadvise system call has been changed from an assembly
131 stub, to a c file that calls an assembly stub. You need to
132 'rm -f posix_fadvise.* .depend' in the libc build directory to
133 avoid using the old assembly stub.
136 The acpiec(4) driver has been split into two attachments. If you
137 get ACPI errors before the attachment, please update your kernel
138 configuration file appropriately or see GENERIC for more details.
141 The it(4) driver has been renamed to itesio(4) and the old port
142 argument specified in the kernel configuration file is not valid
143 anymore. The itesio(4) driver now uses the Super I/O address port
144 rather than the EC address port. Please update your kernel
145 configuration file appropriately or see GENERIC for more details.
148 The pccons(4) driver has been removed from the NetBSD/shark port.
149 You need to update any custom kernel configuration file you have
150 to remove any references to pccons (which includes removing the
151 now useless XSERVER option) and replace them with the correct
152 entries for the wscons driver. See the GENERIC configuration file
156 A latent bug in dhclient/dhcpd that caused it to be unable to
157 enumerate interfaces was fixed. The bug began to cause
158 problems after 20070911 when the kernel's SIOCGIFCONF
159 implementation was repaired. From 20070529 to 20070911 racoon
160 could not enumerate interfaces. (These are noted because
161 normal kernel/userspace version matching hygiene is not
162 sufficient to avoid this problem.) Ensure that both kernel
163 and userland are from after 20070913.
166 nbinstall has been renamed as it calls the target specific and
167 the logic to pass down STRIP from mk been removed. This forces
168 a re-installation of tools.
171 The way OS emulations lookup filenames inside the emulation root
172 has been changed. Rather than modify the pathname (and copy back
173 to userspace) namei() and lookup() directly check the emulation
174 root. One side effect is that absolute symlinks inside the emulated
175 root file system will be relative to that file system - unless they
176 start /../ this is useful when the emulated root is a real install
178 This might affect symlinks that have been added to reference outside
182 The pckbc driver on sgimips IP32 has been removed. Use macekbc
183 instead. See the GENERIC32_IP3x kernel configuration for an
187 src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so
188 on many platforms due to incorrect flags settings. If you
189 updated and built after about 20070315, do "nbmake-$arch
190 cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a
191 rebuild of object files that might have been built
192 incorrectly, and ensure that you have at least
193 src/lib/libc/Makefile 1.130.
196 src/sys/sys/{sa.h,savar.h} were removed.
197 find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \
198 | xargs egrep -l '/sa.h|/savar.h' | xargs rm
199 will allow dependencies on those files to get get rebuilt
202 The threading model was changed when the newlock2 branch
203 was merged to NetBSD-current. If you boot with a new
204 kernel (version 4.99.10), then you also need a new pthread
205 library (/usr/lib/libpthread.so.0.7). If you boot with
206 an old kernel, then you need the old pthread library
207 (/usr/lib/libpthread.so.0.6). Provided you keep the kernel and
208 the pthread library in sync, old threaded applications should
209 continue to work with an old or new kernel. Note that named(8)
210 is the only threaded application in the base system.
213 Following the move of string_to_flags() and flags_to_string()
214 from the bin/ls/ sources to libutil, users doing UPDATE builds
215 will need to do a "make cleandir" in
216 tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/,
217 bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/,
218 usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
219 as the installation images in distrib/
220 in order to excise stale references to the old stat_flags.h header
221 file in the ls sources -- stat_flags.h has been removed.
224 The configure script used in the src/tools/gcc compiler has been
225 changed to indicate that our libc has ssp support built-in and
226 does not depend on -lssp and -lssp-nonshared. You'll need to
227 make clean in src/tools/gcc first to rebuild the compiler.
230 The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
231 available. Use net.inet{,6}.tcp{,6}.congctl.selected instead.
234 The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been
235 withdrawn. Use vidcvideo and pckbd instead. See the GENERIC
236 kernel configuration for an example. X servers from the last
237 few years should cope.
240 MPACPI is no more. We always configure PCI interrupts using ACPI
241 if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed
242 to ACPI_SCANPCI. Thanks to work from fvdl.
245 socket(2) has changed, and its system call has been versioned.
246 For userlands with the old version of socket(2), make sure that
247 your kernel has 'options COMPAT_30' set, or else 'bad system call'
250 Hints for a more successful build:
251 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
252 Use build.sh, but do not use its "expert mode":
253 This will automatically build the tools in the
254 correct order, and it will keep the tools and the
255 new build products from interfering with the running
256 system. This will allow you to ignore most of the
257 other advice in this file.
258 Build a new kernel first:
259 This makes sure that any new system calls or features
260 expected by the new userland will be present. This
261 helps to avoid critical errors when upgrading.
262 Use object directories:
263 This helps to keep stale object
264 files from polluting the build if a Makefile "forgets"
265 about one. It also makes it easier to clean up after
266 a build. It's also necessary if you want to use the
267 same source tree for multiple machines.
268 To use object directories with build.sh:
269 a) invoke build.sh with the "-M" or "-O" options.
270 To use object directories without using build.sh:
271 a) cd /usr/src ; make cleandir
272 b) Add "OBJMACHINE=yes" to /etc/mk.conf
273 c) Add "MKOBJDIRS=yes" to /etc/mk.conf
274 d) cd /usr/src ; make build
275 Note that running "make obj" in a directory will create
276 in obj.$MACHINE directory.
278 This helps to keep old installed files (especially libraries)
279 from interfering with the new build.
280 To build to a DESTDIR with build.sh, use the "-D" option.
281 To build to a DESTDIR without using build.sh, set the DESTDIR
282 environment variable before running make build. It should be
283 set to the pathname of an initially empty directory.
284 Problems: if you do not use build.sh, you might need to
285 update critical utilities without using DESTDIR since
286 nothing is executed from what is installed in DESTDIR.
287 (See critical utils, below.)
289 This keeps critical utilities current enough to not choke
290 on any other part of the source tree that depends on up to
291 date functionality. If you use build.sh, you should not have
294 What to do if things don't work:
295 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
296 When things don't work there is usually a few things that commonly
299 This should be done automatically by make build.
300 2) cd share/mk && make install
301 Again, automatically done by make build.
303 Failsafe rebuild of a small part of the tree:
304 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
305 To make sure you rebuild something correctly you want to do
306 something like the following:
307 1) Make sure the includes and .mk files are up to date.
308 2) Make sure any program used to build the particular
309 utility is up to date. (yacc, lex, etc...)
310 3) cd ...path/to/util...
312 rm ...all obj directories...
313 make cleandir # yes, again
317 Failsafe rebuild of the entire tree:
318 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
319 If you really want to make sure the source tree is clean and
320 ready for a build try the following. Note that sourcing /etc/mk.conf
321 (a make(1) Makefile) in this manner is not right, and will not work
322 for anyone who uses any make(1) features in /etc/mk.conf.
328 if [ -z $NETBSDSRCDIR ] ; then
329 NETBSDSRCDIR=/usr/src
331 if [ \! -d $NETBSDSRCDIR ] ; then
332 echo Unable to find sources
335 find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
337 if [ -z $BSDOBJDIR ] ; then
340 if [ -d $BSDOBJDIR ] ; then
344 cd $NETBSDSRCDIR && make cleandir
357 Other problems and possible solutions:
358 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
359 Symptom:Complaints involving a Makefile.
360 Fix: Rebuild usr.bin/make:
361 cd usr.bin/make && make && make install
362 Or, a failsafe method if that doesn't work:
363 cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
365 Fix: Make sure .mk files are up to date.
366 cd share/mk && make install
368 Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
369 Fix: Rebuild usr.bin/config
372 Fix: Rebuild usr.bin/yacc
375 Fix: Rebuild usr.bin/lex
378 Fix: rm /usr/lib/libbfd.a
380 Symptom:Obsolete intermediate files are used during compilation
381 Fix: Try the following sequence of commands in the directory in question.
382 make cleandir; rm `make print-objdir`; make cleandir; make obj
383 (If you built the tree without "make obj" in the past, obsolete files
384 may remain. The command tries to clean everything up)
386 Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type
387 Fix: Rebuild and install usr.bin/menuc
389 Symptom:mklocale not found during build in share/locale/ctype
390 Fix: Build and install usr.bin/mklocale
392 Symptom:undefined reference to `__assert13' or `__unsetenv13'
393 Fix: Rebuild and install lib/libc
395 Symptom:usr.bin/config fails to build.
396 Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
398 Symptom:undefined reference to `getprogname' or `setprogname'
399 Fix: Rebuild and install lib/libc
401 Symptom:lint does not understand the '-X' option
402 Fix: May need to build & install libs with NOLINT=1 before rebuilding lint