Annotation of src/UPDATING, Revision 1.162
1.162 ! ad 1: $NetBSD: UPDATING,v 1.161 2007/04/30 20:50:20 dsl Exp $
1.1 abs 2:
1.123 jmc 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.
1.1 abs 6:
1.123 jmc 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.
1.1 abs 15:
16: Recent changes:
17: ^^^^^^^^^^^^^^^
1.138 lukem 18:
1.161 dsl 19: 20070422:
20: The way OS emulations lookup filenames inside the emulation root
21: has been changed. Rather than modify the pathname (and copy back
22: to userspace) namei() and lookup() directly check the emulation
23: root. One side effect is that absolute symlinks inside the emulated
24: root filesytem will be relative to that filesystem - unless they
25: start /../ this is useful when the emulated root is a real install
26: that has such links.
27: This might affect symlinks that have been added to reference outside
28: the emulated root.
29:
1.160 jmcneill 30: 20070412:
31: The pckbc driver on sgimips IP32 has been removed. Use macekbc
32: instead. See the GENERIC32_IP3x kernel configuration for an
33: example.
34:
1.159 gdt 35: 20070319:
36: src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so
37: on many platforms due to incorrect flags settings. If you
38: updated and built after about 20070315, do "nbmake-$arch
39: cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a
40: rebuild of object files that might have been built
41: incorrectly, and ensure that you have at least
42: src/lib/libc/Makefile 1.130.
43:
1.158 dbj 44: 20070210:
45: src/sys/sys/{sa.h,savar.h} were removed.
46: find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \
47: | xargs egrep -l '/sa.h|/savar.h' | xargs rm
48: will allow dependencies on those files to get get rebuilt
49:
1.157 apb 50: 20070209:
51: The threading model was changed when the newlock2 branch
52: was merged to NetBSD-current. If you boot with a new
53: kernel (version 4.99.10), then you also need a new pthread
54: library (/usr/lib/libpthread.so.0.7). If you boot with
55: an old kernel, then you need the old pthread library
56: (/usr/lib/libpthread.so.0.6). Provided you keep the kernel and
57: the pthread library in sync, old threaded applications should
58: continue to work with an old or new kernel. Note that named(8)
59: is the only threaded application in the base system.
60:
1.154 he 61: 20061214:
62: Following the move of string_to_flags() and flags_to_string()
63: from the bin/ls/ sources to libutil, users doing UPDATE builds
64: will need to do a "make cleandir" in
65: tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/,
66: bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/,
1.156 he 67: usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
68: as the installation images in distrib/
1.154 he 69: in order to excise stale references to the old stat_flags.h header
70: file in the ls sources -- stat_flags.h has been removed.
71:
1.152 christos 72: 20061108:
73: The configure script used in the src/tools/gcc compiler has been
74: changed to indicate that our libc has ssp support built-in and
75: does not depend on -lssp and -lssp-nonshared. You'll need to
76: make clean in src/tools/gcc first to rebuild the compiler.
77:
1.151 rpaulo 78: 20061009:
79: The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
80: available. Use net.inet{,6}.tcp{,6}.congctl.selected instead.
81:
1.150 bjh21 82: 20060814:
83: The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been
84: withdrawn. Use vidcvideo and pckbd instead. See the GENERIC
85: kernel configuration for an example. X servers from the last
86: few years should cope.
87:
1.149 christos 88: 20060703:
89: MPACPI is no more. We always configure PCI interrupts using ACPI
90: if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed
91: to ACPI_SCANPCI. Thanks to work from fvdl.
92:
1.148 dogcow 93: 20060627:
94: socket(2) has changed, and its system call has been versioned.
95: For userlands with the old version of socket(2), make sure that
96: your kernel has 'options COMPAT_30' set, or else 'bad system call'
97: errors will result.
98:
1.1 abs 99: Hints for a more successful build:
100: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1.123 jmc 101: Use build.sh, but do not use its "expert mode":
1.132 jmmv 102: This will automatically build the tools in the
1.123 jmc 103: correct order, and it will keep the tools and the
104: new build products from interfering with the running
105: system. This will allow you to ignore most of the
106: other advice in this file.
1.2 mrg 107: Build a new kernel first:
108: This makes sure that any new system calls or features
109: expected by the new userland will be present. This
110: helps to avoid critical errors when upgrading.
1.1 abs 111: Use object directories:
112: This helps to keep stale object
113: files from polluting the build if a Makefile "forgets"
114: about one. It also makes it easier to clean up after
115: a build. It's also necessary if you want to use the
116: same source tree for multiple machines.
1.123 jmc 117: To use object directories with build.sh:
118: a) invoke build.sh with the "-M" or "-O" options.
119: To use object directories without using build.sh:
1.1 abs 120: a) cd /usr/src ; make cleandir
1.2 mrg 121: b) Add "OBJMACHINE=yes" to /etc/mk.conf
122: c) Add "MKOBJDIRS=yes" to /etc/mk.conf
1.1 abs 123: d) cd /usr/src ; make build
1.2 mrg 124: Note that running "make obj" in a directory will create
125: in obj.$MACHINE directory.
1.1 abs 126: Build to a DESTDIR:
1.123 jmc 127: This helps to keep old installed files (especially libraries)
128: from interfering with the new build.
129: To build to a DESTDIR with build.sh, use the "-D" option.
130: To build to a DESTDIR without using build.sh, set the DESTDIR
131: environment variable before running make build. It should be
132: set to the pathname of an initially empty directory.
133: Problems: if you do not use build.sh, you might need to
134: update critical utilities without using DESTDIR since
135: nothing is executed from what is installed in DESTDIR.
136: (See critical utils, below.)
1.1 abs 137: Build often:
138: This keeps critical utilities current enough to not choke
139: on any other part of the source tree that depends on up to
1.123 jmc 140: date functionality. If you use build.sh, you should not have
141: this problem.
1.1 abs 142:
143: What to do if things don't work:
144: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
145: When things don't work there is usually a few things that commonly
146: should be done.
147: 1) make includes
148: This should be done automatically by make build.
149: 2) cd share/mk && make install
150: Again, automatically done by make build.
151:
152: Failsafe rebuild of a small part of the tree:
153: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
154: To make sure you rebuild something correctly you want to do
155: something like the following:
156: 1) Make sure the includes and .mk files are up to date.
157: 2) Make sure any program used to build the particular
158: utility is up to date. (yacc, lex, etc...)
159: 3) cd ...path/to/util...
160: make cleandir
161: rm ...all obj directories...
162: make cleandir # yes, again
163: make obj
164: make depend && make
165:
166: Failsafe rebuild of the entire tree:
167: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
168: If you really want to make sure the source tree is clean and
1.2 mrg 169: ready for a build try the following. Note that sourcing /etc/mk.conf
170: (a make(1) Makefile) in this manner is not right, and will not work
171: for anyone who uses any make(1) features in /etc/mk.conf.
1.1 abs 172:
173: ---cut here---
174: #!/bin/sh
175: . /etc/mk.conf
176:
1.58 lukem 177: if [ -z $NETBSDSRCDIR ] ; then
178: NETBSDSRCDIR=/usr/src
1.1 abs 179: fi
1.58 lukem 180: if [ \! -d $NETBSDSRCDIR ] ; then
1.1 abs 181: echo Unable to find sources
182: exit 1
183: fi
1.58 lukem 184: find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
1.1 abs 185:
186: if [ -z $BSDOBJDIR ] ; then
187: BSDOBJDIR=/usr/obj
188: fi
189: if [ -d $BSDOBJDIR ] ; then
190: rm -rf $BSDOBJDIR
191: fi
192:
1.58 lukem 193: cd $NETBSDSRCDIR && make cleandir
1.1 abs 194:
195: ---cut here---
196:
197: Critical utilities:
198: ^^^^^^^^^^^^^^^^^^^
1.3 itojun 199: usr.bin/compile_et
1.1 abs 200: usr.bin/make
201: usr.bin/yacc
202: usr.bin/lex
1.11 lukem 203: usr.bin/xlint
1.142 drochner 204: usr.bin/config
1.1 abs 205:
1.34 simonb 206: Other problems and possible solutions:
1.1 abs 207: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
208: Symptom:Complaints involving a Makefile.
1.17 erh 209: Fix: Rebuild usr.bin/make:
210: cd usr.bin/make && make && make install
1.111 simonb 211: Or, a failsafe method if that doesn't work:
1.17 erh 212: cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
213:
1.1 abs 214: Fix: Make sure .mk files are up to date.
215: cd share/mk && make install
1.2 mrg 216:
217: Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
1.142 drochner 218: Fix: Rebuild usr.bin/config
1.1 abs 219:
220: Symptom:
221: Fix: Rebuild usr.bin/yacc
222:
223: Symptom:
224: Fix: Rebuild usr.bin/lex
225:
226: Symptom:
227: Fix: rm /usr/lib/libbfd.a
1.4 itojun 228:
229: Symptom:Obsolete intermediate files are used during compilation
230: Fix: Try the following sequence of commands in the directory in question.
231: make cleandir; rm `make print-objdir`; make cleandir; make obj
232: (If you built the tree without "make obj" in the past, obsolete files
233: may remain. The command tries to clean everything up)
1.5 wiz 234:
235: Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type
236: Fix: Rebuild and install usr.bin/menuc
1.12 itojun 237:
238: Symptom:mklocale not found during build in share/locale/ctype
239: Fix: Build and install usr.bin/mklocale
1.13 dogcow 240:
1.86 kleink 241: Symptom:undefined reference to `__assert13' or `__unsetenv13'
1.13 dogcow 242: Fix: Rebuild and install lib/libc
243:
1.142 drochner 244: Symptom:usr.bin/config fails to build.
1.19 cgd 245: Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
1.13 dogcow 246:
1.19 cgd 247: Symptom:undefined reference to `getprogname' or `setprogname'
248: Fix: Rebuild and install lib/libc
1.24 abs 249:
250: Symptom:lint does not understand the '-X' option
251: Fix: May need to build & install libs with NOLINT=1 before rebuilding lint
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