UPDATING revision 1.20
1$NetBSD: UPDATING,v 1.20 2001/02/24 20:23:10 jmc Exp $ 2 3This file is intended to be a brief introduction to the build 4process and a reference on what to do if something doesn't work. 5 6For a more detailed description see Makefile. 7 8Recent changes: 9^^^^^^^^^^^^^^^ 10 1120010219: 12 get/setprogname() added. Any hostprog's that may use this will need 13 to be bootstrapped manually until the host system is current. 14 15 Known problems: sys/arch/macppc/stand/fixcoff 16 usr.sbin/config (adding -DMAKE_BOOTSTRAP to 17 CFLAGS and rebuilding should work) 18 usr.sbin/mdsetimage - Build a static copy if 19 building a snapshot before fully bootstrapped. 20 2120010204: 22 prepare the code to compile with stricter gcc flags. in 23 particular start eliminating redundant declarations. Yacc 24 needs to be installed before make build. 25 2620010114: 27 introduce .if commands(target) in make(1). You need to 28 bring everything up-to-date first, then without installing 29 anything make and install in /usr/bin/make, then proceed 30 with make build. 31 3220010101: 33 bsd.subdir.mk committed 20001230 had a bug which caused 34 afterinstall targets to run too soon; update again. 35 3620001230: 37 New share/mk files needed to support .WAIT in SUBDIR variables. 38 If you get make errors, 39 (cd share/mk; make install) 40 Also, PRINTOBJDIR has changed and is now used more heavily. 41 4220001019: 43 The `ca' device driver has been replaced by `ld'; although the 44 major and minor numbers haven't changed, you should update your /dev 45 directory. 46 4720000929: 48 The following make directives are obsoleted. 49 MKCRYPTO_RSA NOCRYPTO_RSA NOCRYPTO_RC5 NOCRYPTO_IDEA 50 By default, RSA is built into libcrypto. IDEA and RC5 will not be 51 built into libcrypto. By using MKCRYPTO_{RC5,IDEA}, you can build 52 additional library libcrypto_{idea,rc5}. 53 5420000623: 55 MKCRYPTO and friends added to share/mk/bsd.own.mk. 56 'cd share/mk ; make install' needed before make build. 57 58 59Hints for a more successful build: 60^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 61 Build a new kernel first: 62 This makes sure that any new system calls or features 63 expected by the new userland will be present. This 64 helps to avoid critical errors when upgrading. 65 Use object directories: 66 This helps to keep stale object 67 files from polluting the build if a Makefile "forgets" 68 about one. It also makes it easier to clean up after 69 a build. It's also necessary if you want to use the 70 same source tree for multiple machines. 71 To use object directories: 72 a) cd /usr/src ; make cleandir 73 b) Add "OBJMACHINE=yes" to /etc/mk.conf 74 c) Add "MKOBJDIRS=yes" to /etc/mk.conf 75 d) cd /usr/src ; make build 76 Note that running "make obj" in a directory will create 77 in obj.$MACHINE directory. 78 Build to a DESTDIR: 79 This helps to keep old 80 installed files (especially libraries) from interfering 81 with the new build. 82 To build to a DESTDIR, set the DESTDIR environment 83 variable before running make build. It should be set to 84 the pathname of an initially empty directory. 85 Problems: you might need to update critical utilities 86 without using DESTDIR since nothing is executed 87 from what is installed in DESTDIR. 88 (See critical utils, below) 89 Build often: 90 This keeps critical utilities current enough to not choke 91 on any other part of the source tree that depends on up to 92 date functionality. 93 94What to do if things don't work: 95^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 96When things don't work there is usually a few things that commonly 97should be done. 98 1) make includes 99 This should be done automatically by make build. 100 2) cd share/mk && make install 101 Again, automatically done by make build. 102 103Failsafe rebuild of a small part of the tree: 104^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 105To make sure you rebuild something correctly you want to do 106something like the following: 107 1) Make sure the includes and .mk files are up to date. 108 2) Make sure any program used to build the particular 109 utility is up to date. (yacc, lex, etc...) 110 3) cd ...path/to/util... 111 make cleandir 112 rm ...all obj directories... 113 make cleandir # yes, again 114 make obj 115 make depend && make 116 117Failsafe rebuild of the entire tree: 118^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 119If you really want to make sure the source tree is clean and 120ready for a build try the following. Note that sourcing /etc/mk.conf 121(a make(1) Makefile) in this manner is not right, and will not work 122for anyone who uses any make(1) features in /etc/mk.conf. 123 124---cut here--- 125#!/bin/sh 126. /etc/mk.conf 127 128if [ -z $BSDSRCDIR ] ; then 129 BSDSRCDIR=/usr/src 130fi 131if [ \! -d $BSDSRCDIR ] ; then 132 echo Unable to find sources 133 exit 1 134fi 135find $BSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \; 136 137if [ -z $BSDOBJDIR ] ; then 138 BSDOBJDIR=/usr/obj 139fi 140if [ -d $BSDOBJDIR ] ; then 141 rm -rf $BSDOBJDIR 142fi 143 144cd $BSDSRCDIR && make cleandir 145 146---cut here--- 147 148Critical utilities: 149^^^^^^^^^^^^^^^^^^^ 150 gnu/usr.bin/egcs 151 usr.bin/compile_et 152 usr.bin/make 153 usr.bin/yacc 154 usr.bin/lex 155 usr.bin/xlint 156 usr.sbin/config 157 158Other problems and possibly solutions: 159^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 160Symptom:Unreasonable compiler errors. 161Fix: Rebuild gnu/usr.bin/egcs 162 163Symptom:Complaints involving a Makefile. 164Fix: Rebuild usr.bin/make: 165 cd usr.bin/make && make && make install 166 Or, a failsafe method if that doesn't work: 167 cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin 168 169Fix: Make sure .mk files are up to date. 170 cd share/mk && make install 171 172Symptom:Kernel `config' fails to configure any kernel, including GENERIC. 173Fix: Rebuild usr.sbin/config 174 175Symptom: 176Fix: Rebuild usr.bin/yacc 177 178Symptom: 179Fix: Rebuild usr.bin/lex 180 181Symptom: 182Fix: rm /usr/lib/libbfd.a 183 184Symptom:Obsolete intermediate files are used during compilation 185Fix: Try the following sequence of commands in the directory in question. 186 make cleandir; rm `make print-objdir`; make cleandir; make obj 187 (If you built the tree without "make obj" in the past, obsolete files 188 may remain. The command tries to clean everything up) 189 190Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type 191Fix: Rebuild and install usr.bin/menuc 192 193Symptom:mklocale not found during build in share/locale/ctype 194Fix: Build and install usr.bin/mklocale 195 196Symptom:undefined reference to `__assert13' 197Fix: Rebuild and install lib/libc 198 199Symptom:usr.sbin/config fails to build. 200Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile. 201 202Symptom:undefined reference to `getprogname' or `setprogname' 203Fix: Rebuild and install lib/libc 204