1 $NetBSD: UPDATING,v 1.192 2009/02/07 13:44:48 skrll 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 __posix_fadvise50 system call changed assembly stub type. You need to
21 'rm -f __posix_fadvise50.*' in the libc build directory to avoid using
22 the old assembly stub.
25 pkg_install now depends on the pkgdb cache for automatic conflict
26 detection. It is recommented to rebuild the cache with
27 ``pkg_admin rebuild''.
30 time_t and dev_t have been bumped to 64 bit quantities. To upgrade:
31 1. Make sure your kernel has COMPAT_50 in it. Build and install.
32 This is needed even in the MODULAR kernel because there is
33 conditionally compiled code in rtsock.c.
34 2. make sure build.sh completes and the binaries in a chroot work
36 3. If you don't use build.sh and you build directly to root, and
37 your build breaks in the middle, don't despair. Make sure headers
38 are installed properly, and start building libraries first libc
39 and libutil, install them and then continue building all the
40 libraries in src/lib and src/gnu/lib and install them. Once
41 the new libraries are installed, you can restart the build.
42 4. If you compile packages and you notice link time warnings,
43 rebuild the required packages to update their shared libraries.
44 Any package you rebuild will require rebuilding all the packages
46 5. Next time you run pwd_mkdb with the new binary, the file
47 will be upgraded and it will not be backwards compatible.
48 6. The utmpx/wtmpx files (/var/run/utmpx and /var/log/wtmpx, see
49 lastlogx(5)) have been versioned, and there is a heuristic
50 for utmp. You are better off removing the old files after
51 upgrading. The automated clearing of /var/run during
52 boot, and the automated rotating of files in /var/log by
53 newsyslog(8), may mean that you do not have to remove the
55 7. The optional accounting file (/var/account/acct, see
56 accton(8)) has not been versioned, and will need to be
57 removed. The automatic rotation of the accounting file by
58 /etc/daily limits the bad consequences of failure to remove
62 config(1) has been updated, and one of the files it creates -
63 swapnetbsd.o - has changed format. You need to rebuild config
64 (done automatically by build.sh) and then you need to rerun
65 config on all kernel configuration files before rebuilding those
69 If you build with MKX11=no, you should remove /etc/rc.d/xdm and
70 /etc/rc.d/xfs from DESTDIR because those files were moved to the xetc
71 set and will appear as extra files for MKX11=no update builds.
74 On i386, various kernel options(4) in GENERIC including
75 file systems have been disabled and moved into kernel modules.
76 Before trying a new GENERIC kernel, you have to prepare the
77 following files as well as a new GENERIC kernel:
79 - build and install kernel modules from src/sys/modules
81 - install the latest bootloader, which will load a module
82 for the file system from which the kernel is loaded automatically
84 If you have to load your kernel from a file system which is not of
85 the same type as the root file system, you have to load the necessary
86 file system module manually on the boot prompt or in the boot.cfg file.
89 If you built and installed a libc from sources between
90 2008/08/20 and 2008/08/26 you got a broken strtouq(3)
91 which results in false errors reported by lint(1).
92 Since this breaks the libc build itself, manual help is
93 needed -- lint must be disabled temporarily, e.g.:
94 $ (cd lib/libc && make MKLINT=no dependall install)
97 MKDEBUG build was broken because the .depend files did not know
98 about .go files. You need to remove all .depend files and rebuild.
101 WAPBL (metadata journaling support) has been added, but at this
102 time isn't backwards compatible with pre-WAPBL aware kernels
103 and userland (fsck_ffs in particular). Please make sure you
104 don't use a journaled filesystem with an older kernel/userland,
105 especially an uncleanly mounted journaled filesystem. WAPBL
106 also requires the super block to be in the UFS2 format. You
107 can use fsck_ffs -c 4 to update the superblock format.
110 Assembler warnings are now fatal if $WARNS>0 and $NOGCCERROR
114 The ioctl number of DRVSUSPENDDEV command on /dev/drvctl changed
115 from 125 (conflicted with DRVCTLCOMMAND) to 129. The drvctl(8)
116 utility needs to be rebuilt and reinstalled as older binaries
117 won't work correctly. The following sequence of commands:
119 $ (cd sys/sys/ && nbmake-$arch includes)
120 $ (cd sbin/drvctl/ && nbmake-$arch clean)
121 $ (cd sbin/drvctl/ && nbmake-$arch all)
123 leaves new drvctl utility in sbin/drvctl build directory.
126 The <bsd.lib.mk> variable MKPRIVATELIB was renamed to LIBISPRIVATE.
129 For a while, unprivileged UPDATE builds would fail to
130 succeed at the checkflist stage, complaining that
131 ${DESTDIR}/stand/<arch>/ did not exist. A fix for this
132 problem was committed to share/mk/bsd.kmodule.mk, revision 1.9.
133 If you already hit this problem, update the .mk file,
134 remove ${DESTDIR}/stand/<arch>, and re-run the build.
137 Linker warnings are now fatal if $WARNS>0.
140 The posix_fadvise system call has been changed from an assembly
141 stub, to a c file that calls an assembly stub. You need to
142 'rm -f posix_fadvise.* .depend' in the libc build directory to
143 avoid using the old assembly stub.
146 The acpiec(4) driver has been split into two attachments. If you
147 get ACPI errors before the attachment, please update your kernel
148 configuration file appropriately or see GENERIC for more details.
151 The it(4) driver has been renamed to itesio(4) and the old port
152 argument specified in the kernel configuration file is not valid
153 anymore. The itesio(4) driver now uses the Super I/O address port
154 rather than the EC address port. Please update your kernel
155 configuration file appropriately or see GENERIC for more details.
158 The pccons(4) driver has been removed from the NetBSD/shark port.
159 You need to update any custom kernel configuration file you have
160 to remove any references to pccons (which includes removing the
161 now useless XSERVER option) and replace them with the correct
162 entries for the wscons driver. See the GENERIC configuration file
166 A latent bug in dhclient/dhcpd that caused it to be unable to
167 enumerate interfaces was fixed. The bug began to cause
168 problems after 20070911 when the kernel's SIOCGIFCONF
169 implementation was repaired. From 20070529 to 20070911 racoon
170 could not enumerate interfaces. (These are noted because
171 normal kernel/userspace version matching hygiene is not
172 sufficient to avoid this problem.) Ensure that both kernel
173 and userland are from after 20070913.
176 nbinstall has been renamed as it calls the target specific and
177 the logic to pass down STRIP from mk been removed. This forces
178 a re-installation of tools.
181 The way OS emulations lookup filenames inside the emulation root
182 has been changed. Rather than modify the pathname (and copy back
183 to userspace) namei() and lookup() directly check the emulation
184 root. One side effect is that absolute symlinks inside the emulated
185 root file system will be relative to that file system - unless they
186 start /../ this is useful when the emulated root is a real install
188 This might affect symlinks that have been added to reference outside
192 The pckbc driver on sgimips IP32 has been removed. Use macekbc
193 instead. See the GENERIC32_IP3x kernel configuration for an
197 src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so
198 on many platforms due to incorrect flags settings. If you
199 updated and built after about 20070315, do "nbmake-$arch
200 cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a
201 rebuild of object files that might have been built
202 incorrectly, and ensure that you have at least
203 src/lib/libc/Makefile 1.130.
206 src/sys/sys/{sa.h,savar.h} were removed.
207 find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \
208 | xargs egrep -l '/sa.h|/savar.h' | xargs rm
209 will allow dependencies on those files to get get rebuilt
212 The threading model was changed when the newlock2 branch
213 was merged to NetBSD-current. If you boot with a new
214 kernel (version 4.99.10), then you also need a new pthread
215 library (/usr/lib/libpthread.so.0.7). If you boot with
216 an old kernel, then you need the old pthread library
217 (/usr/lib/libpthread.so.0.6). Provided you keep the kernel and
218 the pthread library in sync, old threaded applications should
219 continue to work with an old or new kernel. Note that named(8)
220 is the only threaded application in the base system.
223 Following the move of string_to_flags() and flags_to_string()
224 from the bin/ls/ sources to libutil, users doing UPDATE builds
225 will need to do a "make cleandir" in
226 tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/,
227 bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/,
228 usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
229 as the installation images in distrib/
230 in order to excise stale references to the old stat_flags.h header
231 file in the ls sources -- stat_flags.h has been removed.
234 The configure script used in the src/tools/gcc compiler has been
235 changed to indicate that our libc has ssp support built-in and
236 does not depend on -lssp and -lssp-nonshared. You'll need to
237 make clean in src/tools/gcc first to rebuild the compiler.
240 The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
241 available. Use net.inet{,6}.tcp{,6}.congctl.selected instead.
244 The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been
245 withdrawn. Use vidcvideo and pckbd instead. See the GENERIC
246 kernel configuration for an example. X servers from the last
247 few years should cope.
250 MPACPI is no more. We always configure PCI interrupts using ACPI
251 if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed
252 to ACPI_SCANPCI. Thanks to work from fvdl.
255 socket(2) has changed, and its system call has been versioned.
256 For userlands with the old version of socket(2), make sure that
257 your kernel has 'options COMPAT_30' set, or else 'bad system call'
260 Hints for a more successful build:
261 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
262 Use build.sh, but do not use its "expert mode":
263 This will automatically build the tools in the
264 correct order, and it will keep the tools and the
265 new build products from interfering with the running
266 system. This will allow you to ignore most of the
267 other advice in this file.
268 Build a new kernel first:
269 This makes sure that any new system calls or features
270 expected by the new userland will be present. This
271 helps to avoid critical errors when upgrading.
272 Use object directories:
273 This helps to keep stale object
274 files from polluting the build if a Makefile "forgets"
275 about one. It also makes it easier to clean up after
276 a build. It's also necessary if you want to use the
277 same source tree for multiple machines.
278 To use object directories with build.sh:
279 a) invoke build.sh with the "-M" or "-O" options.
280 To use object directories without using build.sh:
281 a) cd /usr/src ; make cleandir
282 b) Add "OBJMACHINE=yes" to /etc/mk.conf
283 c) Add "MKOBJDIRS=yes" to /etc/mk.conf
284 d) cd /usr/src ; make build
285 Note that running "make obj" in a directory will create
286 in obj.$MACHINE directory.
288 This helps to keep old installed files (especially libraries)
289 from interfering with the new build.
290 To build to a DESTDIR with build.sh, use the "-D" option.
291 To build to a DESTDIR without using build.sh, set the DESTDIR
292 environment variable before running make build. It should be
293 set to the pathname of an initially empty directory.
294 Problems: if you do not use build.sh, you might need to
295 update critical utilities without using DESTDIR since
296 nothing is executed from what is installed in DESTDIR.
297 (See critical utils, below.)
299 This keeps critical utilities current enough to not choke
300 on any other part of the source tree that depends on up to
301 date functionality. If you use build.sh, you should not have
304 What to do if things don't work:
305 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
306 When things don't work there is usually a few things that commonly
309 This should be done automatically by make build.
310 2) cd share/mk && make install
311 Again, automatically done by make build.
313 Failsafe rebuild of a small part of the tree:
314 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
315 To make sure you rebuild something correctly you want to do
316 something like the following:
317 1) Make sure the includes and .mk files are up to date.
318 2) Make sure any program used to build the particular
319 utility is up to date. (yacc, lex, etc...)
320 3) cd ...path/to/util...
322 rm ...all obj directories...
323 make cleandir # yes, again
327 Failsafe rebuild of the entire tree:
328 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
329 If you really want to make sure the source tree is clean and
330 ready for a build try the following. Note that sourcing /etc/mk.conf
331 (a make(1) Makefile) in this manner is not right, and will not work
332 for anyone who uses any make(1) features in /etc/mk.conf.
338 if [ -z $NETBSDSRCDIR ] ; then
339 NETBSDSRCDIR=/usr/src
341 if [ \! -d $NETBSDSRCDIR ] ; then
342 echo Unable to find sources
345 find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
347 if [ -z $BSDOBJDIR ] ; then
350 if [ -d $BSDOBJDIR ] ; then
354 cd $NETBSDSRCDIR && make cleandir
367 Other problems and possible solutions:
368 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
369 Symptom:Complaints involving a Makefile.
370 Fix: Rebuild usr.bin/make:
371 cd usr.bin/make && make && make install
372 Or, a failsafe method if that doesn't work:
373 cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
375 Fix: Make sure .mk files are up to date.
376 cd share/mk && make install
378 Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
379 Fix: Rebuild usr.bin/config
382 Fix: Rebuild usr.bin/yacc
385 Fix: Rebuild usr.bin/lex
388 Fix: rm /usr/lib/libbfd.a
390 Symptom:Obsolete intermediate files are used during compilation
391 Fix: Try the following sequence of commands in the directory in question.
392 make cleandir; rm `make print-objdir`; make cleandir; make obj
393 (If you built the tree without "make obj" in the past, obsolete files
394 may remain. The command tries to clean everything up)
396 Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type
397 Fix: Rebuild and install usr.bin/menuc
399 Symptom:mklocale not found during build in share/locale/ctype
400 Fix: Build and install usr.bin/mklocale
402 Symptom:undefined reference to `__assert13' or `__unsetenv13'
403 Fix: Rebuild and install lib/libc
405 Symptom:usr.bin/config fails to build.
406 Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
408 Symptom:undefined reference to `getprogname' or `setprogname'
409 Fix: Rebuild and install lib/libc
411 Symptom:lint does not understand the '-X' option
412 Fix: May need to build & install libs with NOLINT=1 before rebuilding lint