UPDATING revision 1.163
1 $NetBSD: UPDATING,v 1.163 2007/07/03 16:35:47 joerg Exp $ 2 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. 6 7 For a more detailed description of the recommended way to build NetBSD 8 using build.sh, see the BUILDING file. 9 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. 13 14 See also: BUILDING, build.sh, Makefile. 15 16 Recent changes: 17 ^^^^^^^^^^^^^^^ 18 19 20070703: 20 nbinstall has been renamed as it calls the target specific and 21 the logic to pass down STRIP from mk been removed. This forces 22 a re-installation of tools. 23 24 20070422: 25 The way OS emulations lookup filenames inside the emulation root 26 has been changed. Rather than modify the pathname (and copy back 27 to userspace) namei() and lookup() directly check the emulation 28 root. One side effect is that absolute symlinks inside the emulated 29 root filesytem will be relative to that filesystem - unless they 30 start /../ this is useful when the emulated root is a real install 31 that has such links. 32 This might affect symlinks that have been added to reference outside 33 the emulated root. 34 35 20070412: 36 The pckbc driver on sgimips IP32 has been removed. Use macekbc 37 instead. See the GENERIC32_IP3x kernel configuration for an 38 example. 39 40 20070319: 41 src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so 42 on many platforms due to incorrect flags settings. If you 43 updated and built after about 20070315, do "nbmake-$arch 44 cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a 45 rebuild of object files that might have been built 46 incorrectly, and ensure that you have at least 47 src/lib/libc/Makefile 1.130. 48 49 20070210: 50 src/sys/sys/{sa.h,savar.h} were removed. 51 find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \ 52 | xargs egrep -l '/sa.h|/savar.h' | xargs rm 53 will allow dependencies on those files to get get rebuilt 54 55 20070209: 56 The threading model was changed when the newlock2 branch 57 was merged to NetBSD-current. If you boot with a new 58 kernel (version 4.99.10), then you also need a new pthread 59 library (/usr/lib/libpthread.so.0.7). If you boot with 60 an old kernel, then you need the old pthread library 61 (/usr/lib/libpthread.so.0.6). Provided you keep the kernel and 62 the pthread library in sync, old threaded applications should 63 continue to work with an old or new kernel. Note that named(8) 64 is the only threaded application in the base system. 65 66 20061214: 67 Following the move of string_to_flags() and flags_to_string() 68 from the bin/ls/ sources to libutil, users doing UPDATE builds 69 will need to do a "make cleandir" in 70 tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/, 71 bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/, 72 usr.bin/xinstall/, libexec/ftpd/, rescue/, as well 73 as the installation images in distrib/ 74 in order to excise stale references to the old stat_flags.h header 75 file in the ls sources -- stat_flags.h has been removed. 76 77 20061108: 78 The configure script used in the src/tools/gcc compiler has been 79 changed to indicate that our libc has ssp support built-in and 80 does not depend on -lssp and -lssp-nonshared. You'll need to 81 make clean in src/tools/gcc first to rebuild the compiler. 82 83 20061009: 84 The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer 85 available. Use net.inet{,6}.tcp{,6}.congctl.selected instead. 86 87 20060814: 88 The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been 89 withdrawn. Use vidcvideo and pckbd instead. See the GENERIC 90 kernel configuration for an example. X servers from the last 91 few years should cope. 92 93 20060703: 94 MPACPI is no more. We always configure PCI interrupts using ACPI 95 if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed 96 to ACPI_SCANPCI. Thanks to work from fvdl. 97 98 20060627: 99 socket(2) has changed, and its system call has been versioned. 100 For userlands with the old version of socket(2), make sure that 101 your kernel has 'options COMPAT_30' set, or else 'bad system call' 102 errors will result. 103 104 Hints for a more successful build: 105 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 106 Use build.sh, but do not use its "expert mode": 107 This will automatically build the tools in the 108 correct order, and it will keep the tools and the 109 new build products from interfering with the running 110 system. This will allow you to ignore most of the 111 other advice in this file. 112 Build a new kernel first: 113 This makes sure that any new system calls or features 114 expected by the new userland will be present. This 115 helps to avoid critical errors when upgrading. 116 Use object directories: 117 This helps to keep stale object 118 files from polluting the build if a Makefile "forgets" 119 about one. It also makes it easier to clean up after 120 a build. It's also necessary if you want to use the 121 same source tree for multiple machines. 122 To use object directories with build.sh: 123 a) invoke build.sh with the "-M" or "-O" options. 124 To use object directories without using build.sh: 125 a) cd /usr/src ; make cleandir 126 b) Add "OBJMACHINE=yes" to /etc/mk.conf 127 c) Add "MKOBJDIRS=yes" to /etc/mk.conf 128 d) cd /usr/src ; make build 129 Note that running "make obj" in a directory will create 130 in obj.$MACHINE directory. 131 Build to a DESTDIR: 132 This helps to keep old installed files (especially libraries) 133 from interfering with the new build. 134 To build to a DESTDIR with build.sh, use the "-D" option. 135 To build to a DESTDIR without using build.sh, set the DESTDIR 136 environment variable before running make build. It should be 137 set to the pathname of an initially empty directory. 138 Problems: if you do not use build.sh, you might need to 139 update critical utilities without using DESTDIR since 140 nothing is executed from what is installed in DESTDIR. 141 (See critical utils, below.) 142 Build often: 143 This keeps critical utilities current enough to not choke 144 on any other part of the source tree that depends on up to 145 date functionality. If you use build.sh, you should not have 146 this problem. 147 148 What to do if things don't work: 149 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 150 When things don't work there is usually a few things that commonly 151 should be done. 152 1) make includes 153 This should be done automatically by make build. 154 2) cd share/mk && make install 155 Again, automatically done by make build. 156 157 Failsafe rebuild of a small part of the tree: 158 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 159 To make sure you rebuild something correctly you want to do 160 something like the following: 161 1) Make sure the includes and .mk files are up to date. 162 2) Make sure any program used to build the particular 163 utility is up to date. (yacc, lex, etc...) 164 3) cd ...path/to/util... 165 make cleandir 166 rm ...all obj directories... 167 make cleandir # yes, again 168 make obj 169 make depend && make 170 171 Failsafe rebuild of the entire tree: 172 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 173 If you really want to make sure the source tree is clean and 174 ready for a build try the following. Note that sourcing /etc/mk.conf 175 (a make(1) Makefile) in this manner is not right, and will not work 176 for anyone who uses any make(1) features in /etc/mk.conf. 177 178 ---cut here--- 179 #!/bin/sh 180 . /etc/mk.conf 181 182 if [ -z $NETBSDSRCDIR ] ; then 183 NETBSDSRCDIR=/usr/src 184 fi 185 if [ \! -d $NETBSDSRCDIR ] ; then 186 echo Unable to find sources 187 exit 1 188 fi 189 find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \; 190 191 if [ -z $BSDOBJDIR ] ; then 192 BSDOBJDIR=/usr/obj 193 fi 194 if [ -d $BSDOBJDIR ] ; then 195 rm -rf $BSDOBJDIR 196 fi 197 198 cd $NETBSDSRCDIR && make cleandir 199 200 ---cut here--- 201 202 Critical utilities: 203 ^^^^^^^^^^^^^^^^^^^ 204 usr.bin/compile_et 205 usr.bin/make 206 usr.bin/yacc 207 usr.bin/lex 208 usr.bin/xlint 209 usr.bin/config 210 211 Other problems and possible solutions: 212 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 213 Symptom:Complaints involving a Makefile. 214 Fix: Rebuild usr.bin/make: 215 cd usr.bin/make && make && make install 216 Or, a failsafe method if that doesn't work: 217 cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin 218 219 Fix: Make sure .mk files are up to date. 220 cd share/mk && make install 221 222 Symptom:Kernel `config' fails to configure any kernel, including GENERIC. 223 Fix: Rebuild usr.bin/config 224 225 Symptom: 226 Fix: Rebuild usr.bin/yacc 227 228 Symptom: 229 Fix: Rebuild usr.bin/lex 230 231 Symptom: 232 Fix: rm /usr/lib/libbfd.a 233 234 Symptom:Obsolete intermediate files are used during compilation 235 Fix: Try the following sequence of commands in the directory in question. 236 make cleandir; rm `make print-objdir`; make cleandir; make obj 237 (If you built the tree without "make obj" in the past, obsolete files 238 may remain. The command tries to clean everything up) 239 240 Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type 241 Fix: Rebuild and install usr.bin/menuc 242 243 Symptom:mklocale not found during build in share/locale/ctype 244 Fix: Build and install usr.bin/mklocale 245 246 Symptom:undefined reference to `__assert13' or `__unsetenv13' 247 Fix: Rebuild and install lib/libc 248 249 Symptom:usr.bin/config fails to build. 250 Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile. 251 252 Symptom:undefined reference to `getprogname' or `setprogname' 253 Fix: Rebuild and install lib/libc 254 255 Symptom:lint does not understand the '-X' option 256 Fix: May need to build & install libs with NOLINT=1 before rebuilding lint 257
Indexes created Tue Oct 14 11:09:46 GMT 2025