1 $NetBSD: UPDATING,v 1.188 2009/01/11 18:00:04 christos 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 have been versioned, and there is
39 a heuristic for utmp. You are better off removing the
40 old files after upgrading. The accounting file has not
41 been versioned, and will need to be removed.
44 config(1) has been updated, and one of the files it creates -
45 swapnetbsd.o - has changed format. You need to rebuild config
46 (done automatically by build.sh) and then you need to rerun
47 config on all kernel configuration files before rebuilding those
51 If you build with MKX11=no, you should remove /etc/rc.d/xdm and
52 /etc/rc.d/xfs from DESTDIR because those files were moved to the xetc
53 set and will appear as extra files for MKX11=no update builds.
56 On i386, various kernel options(4) in GENERIC including
57 file systems have been disabled and moved into kernel modules.
58 Before trying a new GENERIC kernel, you have to prepare the
59 following files as well as a new GENERIC kernel:
61 - build and install kernel modules from src/sys/modules
63 - install the latest bootloader, which will load a module
64 for the file system from which the kernel is loaded automatically
66 If you have to load your kernel from a file system which is not of
67 the same type as the root file system, you have to load the necessary
68 file system module manually on the boot prompt or in the boot.cfg file.
71 If you built and installed a libc from sources between
72 2008/08/20 and 2008/08/26 you got a broken strtouq(3)
73 which results in false errors reported by lint(1).
74 Since this breaks the libc build itself, manual help is
75 needed -- lint must be disabled temporarily, e.g.:
76 $ (cd lib/libc && make MKLINT=no dependall install)
79 MKDEBUG build was broken because the .depend files did not know
80 about .go files. You need to remove all .depend files and rebuild.
83 WAPBL (metadata journaling support) has been added, but at this
84 time isn't backwards compatible with pre-WAPBL aware kernels
85 and userland (fsck_ffs in particular). Please make sure you
86 don't use a journaled filesystem with an older kernel/userland,
87 especially an uncleanly mounted journaled filesystem. WAPBL
88 also requires the super block to be in the UFS2 format. You
89 can use fsck_ffs -c 4 to update the superblock format.
92 Assembler warnings are now fatal if $WARNS>0 and $NOGCCERROR
96 The ioctl number of DRVSUSPENDDEV command on /dev/drvctl changed
97 from 125 (conflicted with DRVCTLCOMMAND) to 129. The drvctl(8)
98 utility needs to be rebuilt and reinstalled as older binaries
99 won't work correctly. The following sequence of commands:
101 $ (cd sys/sys/ && nbmake-$arch includes)
102 $ (cd sbin/drvctl/ && nbmake-$arch clean)
103 $ (cd sbin/drvctl/ && nbmake-$arch all)
105 leaves new drvctl utility in sbin/drvctl build directory.
108 The <bsd.lib.mk> variable MKPRIVATELIB was renamed to LIBISPRIVATE.
111 For a while, unprivileged UPDATE builds would fail to
112 succeed at the checkflist stage, complaining that
113 ${DESTDIR}/stand/<arch>/ did not exist. A fix for this
114 problem was committed to share/mk/bsd.kmodule.mk, revision 1.9.
115 If you already hit this problem, update the .mk file,
116 remove ${DESTDIR}/stand/<arch>, and re-run the build.
119 Linker warnings are now fatal if $WARNS>0.
122 The posix_fadvise system call has been changed from an assembly
123 stub, to a c file that calls an assembly stub. You need to
124 'rm -f posix_fadvise.* .depend' in the libc build directory to
125 avoid using the old assembly stub.
128 The acpiec(4) driver has been split into two attachments. If you
129 get ACPI errors before the attachment, please update your kernel
130 configuration file appropriately or see GENERIC for more details.
133 The it(4) driver has been renamed to itesio(4) and the old port
134 argument specified in the kernel configuration file is not valid
135 anymore. The itesio(4) driver now uses the Super I/O address port
136 rather than the EC address port. Please update your kernel
137 configuration file appropriately or see GENERIC for more details.
140 The pccons(4) driver has been removed from the NetBSD/shark port.
141 You need to update any custom kernel configuration file you have
142 to remove any references to pccons (which includes removing the
143 now useless XSERVER option) and replace them with the correct
144 entries for the wscons driver. See the GENERIC configuration file
148 A latent bug in dhclient/dhcpd that caused it to be unable to
149 enumerate interfaces was fixed. The bug began to cause
150 problems after 20070911 when the kernel's SIOCGIFCONF
151 implementation was repaired. From 20070529 to 20070911 racoon
152 could not enumerate interfaces. (These are noted because
153 normal kernel/userspace version matching hygiene is not
154 sufficient to avoid this problem.) Ensure that both kernel
155 and userland are from after 20070913.
158 nbinstall has been renamed as it calls the target specific and
159 the logic to pass down STRIP from mk been removed. This forces
160 a re-installation of tools.
163 The way OS emulations lookup filenames inside the emulation root
164 has been changed. Rather than modify the pathname (and copy back
165 to userspace) namei() and lookup() directly check the emulation
166 root. One side effect is that absolute symlinks inside the emulated
167 root file system will be relative to that file system - unless they
168 start /../ this is useful when the emulated root is a real install
170 This might affect symlinks that have been added to reference outside
174 The pckbc driver on sgimips IP32 has been removed. Use macekbc
175 instead. See the GENERIC32_IP3x kernel configuration for an
179 src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so
180 on many platforms due to incorrect flags settings. If you
181 updated and built after about 20070315, do "nbmake-$arch
182 cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a
183 rebuild of object files that might have been built
184 incorrectly, and ensure that you have at least
185 src/lib/libc/Makefile 1.130.
188 src/sys/sys/{sa.h,savar.h} were removed.
189 find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \
190 | xargs egrep -l '/sa.h|/savar.h' | xargs rm
191 will allow dependencies on those files to get get rebuilt
194 The threading model was changed when the newlock2 branch
195 was merged to NetBSD-current. If you boot with a new
196 kernel (version 4.99.10), then you also need a new pthread
197 library (/usr/lib/libpthread.so.0.7). If you boot with
198 an old kernel, then you need the old pthread library
199 (/usr/lib/libpthread.so.0.6). Provided you keep the kernel and
200 the pthread library in sync, old threaded applications should
201 continue to work with an old or new kernel. Note that named(8)
202 is the only threaded application in the base system.
205 Following the move of string_to_flags() and flags_to_string()
206 from the bin/ls/ sources to libutil, users doing UPDATE builds
207 will need to do a "make cleandir" in
208 tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/,
209 bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/,
210 usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
211 as the installation images in distrib/
212 in order to excise stale references to the old stat_flags.h header
213 file in the ls sources -- stat_flags.h has been removed.
216 The configure script used in the src/tools/gcc compiler has been
217 changed to indicate that our libc has ssp support built-in and
218 does not depend on -lssp and -lssp-nonshared. You'll need to
219 make clean in src/tools/gcc first to rebuild the compiler.
222 The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
223 available. Use net.inet{,6}.tcp{,6}.congctl.selected instead.
226 The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been
227 withdrawn. Use vidcvideo and pckbd instead. See the GENERIC
228 kernel configuration for an example. X servers from the last
229 few years should cope.
232 MPACPI is no more. We always configure PCI interrupts using ACPI
233 if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed
234 to ACPI_SCANPCI. Thanks to work from fvdl.
237 socket(2) has changed, and its system call has been versioned.
238 For userlands with the old version of socket(2), make sure that
239 your kernel has 'options COMPAT_30' set, or else 'bad system call'
242 Hints for a more successful build:
243 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
244 Use build.sh, but do not use its "expert mode":
245 This will automatically build the tools in the
246 correct order, and it will keep the tools and the
247 new build products from interfering with the running
248 system. This will allow you to ignore most of the
249 other advice in this file.
250 Build a new kernel first:
251 This makes sure that any new system calls or features
252 expected by the new userland will be present. This
253 helps to avoid critical errors when upgrading.
254 Use object directories:
255 This helps to keep stale object
256 files from polluting the build if a Makefile "forgets"
257 about one. It also makes it easier to clean up after
258 a build. It's also necessary if you want to use the
259 same source tree for multiple machines.
260 To use object directories with build.sh:
261 a) invoke build.sh with the "-M" or "-O" options.
262 To use object directories without using build.sh:
263 a) cd /usr/src ; make cleandir
264 b) Add "OBJMACHINE=yes" to /etc/mk.conf
265 c) Add "MKOBJDIRS=yes" to /etc/mk.conf
266 d) cd /usr/src ; make build
267 Note that running "make obj" in a directory will create
268 in obj.$MACHINE directory.
270 This helps to keep old installed files (especially libraries)
271 from interfering with the new build.
272 To build to a DESTDIR with build.sh, use the "-D" option.
273 To build to a DESTDIR without using build.sh, set the DESTDIR
274 environment variable before running make build. It should be
275 set to the pathname of an initially empty directory.
276 Problems: if you do not use build.sh, you might need to
277 update critical utilities without using DESTDIR since
278 nothing is executed from what is installed in DESTDIR.
279 (See critical utils, below.)
281 This keeps critical utilities current enough to not choke
282 on any other part of the source tree that depends on up to
283 date functionality. If you use build.sh, you should not have
286 What to do if things don't work:
287 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
288 When things don't work there is usually a few things that commonly
291 This should be done automatically by make build.
292 2) cd share/mk && make install
293 Again, automatically done by make build.
295 Failsafe rebuild of a small part of the tree:
296 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
297 To make sure you rebuild something correctly you want to do
298 something like the following:
299 1) Make sure the includes and .mk files are up to date.
300 2) Make sure any program used to build the particular
301 utility is up to date. (yacc, lex, etc...)
302 3) cd ...path/to/util...
304 rm ...all obj directories...
305 make cleandir # yes, again
309 Failsafe rebuild of the entire tree:
310 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
311 If you really want to make sure the source tree is clean and
312 ready for a build try the following. Note that sourcing /etc/mk.conf
313 (a make(1) Makefile) in this manner is not right, and will not work
314 for anyone who uses any make(1) features in /etc/mk.conf.
320 if [ -z $NETBSDSRCDIR ] ; then
321 NETBSDSRCDIR=/usr/src
323 if [ \! -d $NETBSDSRCDIR ] ; then
324 echo Unable to find sources
327 find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
329 if [ -z $BSDOBJDIR ] ; then
332 if [ -d $BSDOBJDIR ] ; then
336 cd $NETBSDSRCDIR && make cleandir
349 Other problems and possible solutions:
350 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
351 Symptom:Complaints involving a Makefile.
352 Fix: Rebuild usr.bin/make:
353 cd usr.bin/make && make && make install
354 Or, a failsafe method if that doesn't work:
355 cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
357 Fix: Make sure .mk files are up to date.
358 cd share/mk && make install
360 Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
361 Fix: Rebuild usr.bin/config
364 Fix: Rebuild usr.bin/yacc
367 Fix: Rebuild usr.bin/lex
370 Fix: rm /usr/lib/libbfd.a
372 Symptom:Obsolete intermediate files are used during compilation
373 Fix: Try the following sequence of commands in the directory in question.
374 make cleandir; rm `make print-objdir`; make cleandir; make obj
375 (If you built the tree without "make obj" in the past, obsolete files
376 may remain. The command tries to clean everything up)
378 Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type
379 Fix: Rebuild and install usr.bin/menuc
381 Symptom:mklocale not found during build in share/locale/ctype
382 Fix: Build and install usr.bin/mklocale
384 Symptom:undefined reference to `__assert13' or `__unsetenv13'
385 Fix: Rebuild and install lib/libc
387 Symptom:usr.bin/config fails to build.
388 Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
390 Symptom:undefined reference to `getprogname' or `setprogname'
391 Fix: Rebuild and install lib/libc
393 Symptom:lint does not understand the '-X' option
394 Fix: May need to build & install libs with NOLINT=1 before rebuilding lint