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1 $NetBSD: UPDATING,v 1.169 2007/12/17 23:59:41 wiz 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.
16 Recent changes:
17 ^^^^^^^^^^^^^^^
19 20080126:
20 The posix_fadvise system call has been changed from an assembly
21 stub, to a c file that calls an assembly stub. You need to
22 'rm -f posix_fadvise.* .depend' in the libc build directory to
23 avoid using the old assembly stub.
25 20071209:
26 The acpiec(4) driver has been split into two attachments. If you
27 get ACPI errors before the attachment, please update your kernel
28 configuration file appropriately or see GENERIC for more details.
30 20071115:
31 The it(4) driver has been renamed to itesio(4) and the old port
32 argument specified in the kernel configuration file is not valid
33 anymore. The itesio(4) driver now uses the Super I/O address port
34 rather than the EC address port. Please update your kernel
35 configuration file appropriately or see GENERIC for more details.
37 20071028:
38 The pccons(4) driver has been removed from the NetBSD/shark port.
39 You need to update any custom kernel configuration file you have
40 to remove any references to pccons (which includes removing the
41 now useless XSERVER option) and replace them with the correct
42 entries for the wscons driver. See the GENERIC configuration file
43 for more details.
45 20070913:
46 A latent bug in dhclient/dhcpd that caused it to be unable to
47 enumerate interfaces was fixed. The bug began to cause
48 problems after 20070911 when the kernel's SIOCGIFCONF
49 implementation was repaired. From 20070529 to 20070911 racoon
50 could not enumerate interfaces. (These are noted because
51 normal kernel/userspace version matching hygiene is not
52 sufficient to avoid this problem.) Ensure that both kernel
53 and userland are from after 20070913.
55 20070703:
56 nbinstall has been renamed as it calls the target specific and
57 the logic to pass down STRIP from mk been removed. This forces
58 a re-installation of tools.
60 20070422:
61 The way OS emulations lookup filenames inside the emulation root
62 has been changed. Rather than modify the pathname (and copy back
63 to userspace) namei() and lookup() directly check the emulation
64 root. One side effect is that absolute symlinks inside the emulated
65 root file system will be relative to that file system - unless they
66 start /../ this is useful when the emulated root is a real install
67 that has such links.
68 This might affect symlinks that have been added to reference outside
69 the emulated root.
71 20070412:
72 The pckbc driver on sgimips IP32 has been removed. Use macekbc
73 instead. See the GENERIC32_IP3x kernel configuration for an
74 example.
76 20070319:
77 src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so
78 on many platforms due to incorrect flags settings. If you
79 updated and built after about 20070315, do "nbmake-$arch
80 cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a
81 rebuild of object files that might have been built
82 incorrectly, and ensure that you have at least
83 src/lib/libc/Makefile 1.130.
85 20070210:
86 src/sys/sys/{sa.h,savar.h} were removed.
87 find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \
88 | xargs egrep -l '/sa.h|/savar.h' | xargs rm
89 will allow dependencies on those files to get get rebuilt
91 20070209:
92 The threading model was changed when the newlock2 branch
93 was merged to NetBSD-current. If you boot with a new
94 kernel (version 4.99.10), then you also need a new pthread
95 library (/usr/lib/libpthread.so.0.7). If you boot with
96 an old kernel, then you need the old pthread library
97 (/usr/lib/libpthread.so.0.6). Provided you keep the kernel and
98 the pthread library in sync, old threaded applications should
99 continue to work with an old or new kernel. Note that named(8)
100 is the only threaded application in the base system.
102 20061214:
103 Following the move of string_to_flags() and flags_to_string()
104 from the bin/ls/ sources to libutil, users doing UPDATE builds
105 will need to do a "make cleandir" in
106 tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/,
107 bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/,
108 usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
109 as the installation images in distrib/
110 in order to excise stale references to the old stat_flags.h header
111 file in the ls sources -- stat_flags.h has been removed.
113 20061108:
114 The configure script used in the src/tools/gcc compiler has been
115 changed to indicate that our libc has ssp support built-in and
116 does not depend on -lssp and -lssp-nonshared. You'll need to
117 make clean in src/tools/gcc first to rebuild the compiler.
119 20061009:
120 The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
121 available. Use net.inet{,6}.tcp{,6}.congctl.selected instead.
123 20060814:
124 The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been
125 withdrawn. Use vidcvideo and pckbd instead. See the GENERIC
126 kernel configuration for an example. X servers from the last
127 few years should cope.
129 20060703:
130 MPACPI is no more. We always configure PCI interrupts using ACPI
131 if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed
132 to ACPI_SCANPCI. Thanks to work from fvdl.
134 20060627:
135 socket(2) has changed, and its system call has been versioned.
136 For userlands with the old version of socket(2), make sure that
137 your kernel has 'options COMPAT_30' set, or else 'bad system call'
138 errors will result.
140 Hints for a more successful build:
141 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
142 Use build.sh, but do not use its "expert mode":
143 This will automatically build the tools in the
144 correct order, and it will keep the tools and the
145 new build products from interfering with the running
146 system. This will allow you to ignore most of the
147 other advice in this file.
148 Build a new kernel first:
149 This makes sure that any new system calls or features
150 expected by the new userland will be present. This
151 helps to avoid critical errors when upgrading.
152 Use object directories:
153 This helps to keep stale object
154 files from polluting the build if a Makefile "forgets"
155 about one. It also makes it easier to clean up after
156 a build. It's also necessary if you want to use the
157 same source tree for multiple machines.
158 To use object directories with build.sh:
159 a) invoke build.sh with the "-M" or "-O" options.
160 To use object directories without using build.sh:
161 a) cd /usr/src ; make cleandir
162 b) Add "OBJMACHINE=yes" to /etc/mk.conf
163 c) Add "MKOBJDIRS=yes" to /etc/mk.conf
164 d) cd /usr/src ; make build
165 Note that running "make obj" in a directory will create
166 in obj.$MACHINE directory.
167 Build to a DESTDIR:
168 This helps to keep old installed files (especially libraries)
169 from interfering with the new build.
170 To build to a DESTDIR with build.sh, use the "-D" option.
171 To build to a DESTDIR without using build.sh, set the DESTDIR
172 environment variable before running make build. It should be
173 set to the pathname of an initially empty directory.
174 Problems: if you do not use build.sh, you might need to
175 update critical utilities without using DESTDIR since
176 nothing is executed from what is installed in DESTDIR.
177 (See critical utils, below.)
178 Build often:
179 This keeps critical utilities current enough to not choke
180 on any other part of the source tree that depends on up to
181 date functionality. If you use build.sh, you should not have
182 this problem.
184 What to do if things don't work:
185 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
186 When things don't work there is usually a few things that commonly
187 should be done.
188 1) make includes
189 This should be done automatically by make build.
190 2) cd share/mk && make install
191 Again, automatically done by make build.
193 Failsafe rebuild of a small part of the tree:
194 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
195 To make sure you rebuild something correctly you want to do
196 something like the following:
197 1) Make sure the includes and .mk files are up to date.
198 2) Make sure any program used to build the particular
199 utility is up to date. (yacc, lex, etc...)
200 3) cd ...path/to/util...
201 make cleandir
202 rm ...all obj directories...
203 make cleandir # yes, again
204 make obj
205 make depend && make
207 Failsafe rebuild of the entire tree:
208 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
209 If you really want to make sure the source tree is clean and
210 ready for a build try the following. Note that sourcing /etc/mk.conf
211 (a make(1) Makefile) in this manner is not right, and will not work
212 for anyone who uses any make(1) features in /etc/mk.conf.
214 ---cut here---
215 #!/bin/sh
216 . /etc/mk.conf
218 if [ -z $NETBSDSRCDIR ] ; then
219 NETBSDSRCDIR=/usr/src
220 fi
221 if [ \! -d $NETBSDSRCDIR ] ; then
222 echo Unable to find sources
223 exit 1
224 fi
225 find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
227 if [ -z $BSDOBJDIR ] ; then
228 BSDOBJDIR=/usr/obj
229 fi
230 if [ -d $BSDOBJDIR ] ; then
231 rm -rf $BSDOBJDIR
232 fi
234 cd $NETBSDSRCDIR && make cleandir
236 ---cut here---
238 Critical utilities:
239 ^^^^^^^^^^^^^^^^^^^
240 usr.bin/compile_et
241 usr.bin/make
242 usr.bin/yacc
243 usr.bin/lex
244 usr.bin/xlint
245 usr.bin/config
247 Other problems and possible solutions:
248 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
249 Symptom:Complaints involving a Makefile.
250 Fix: Rebuild usr.bin/make:
251 cd usr.bin/make && make && make install
252 Or, a failsafe method if that doesn't work:
253 cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
255 Fix: Make sure .mk files are up to date.
256 cd share/mk && make install
258 Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
259 Fix: Rebuild usr.bin/config
261 Symptom:
262 Fix: Rebuild usr.bin/yacc
264 Symptom:
265 Fix: Rebuild usr.bin/lex
267 Symptom:
268 Fix: rm /usr/lib/libbfd.a
270 Symptom:Obsolete intermediate files are used during compilation
271 Fix: Try the following sequence of commands in the directory in question.
272 make cleandir; rm `make print-objdir`; make cleandir; make obj
273 (If you built the tree without "make obj" in the past, obsolete files
274 may remain. The command tries to clean everything up)
276 Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type
277 Fix: Rebuild and install usr.bin/menuc
279 Symptom:mklocale not found during build in share/locale/ctype
280 Fix: Build and install usr.bin/mklocale
282 Symptom:undefined reference to `__assert13' or `__unsetenv13'
283 Fix: Rebuild and install lib/libc
285 Symptom:usr.bin/config fails to build.
286 Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
288 Symptom:undefined reference to `getprogname' or `setprogname'
289 Fix: Rebuild and install lib/libc
291 Symptom:lint does not understand the '-X' option
292 Fix: May need to build & install libs with NOLINT=1 before rebuilding lint