UPDATING revision 1.354
1$NetBSD: UPDATING,v 1.354 2024/07/01 09:44:48 martin Exp $
2
3This file (UPDATING) is intended to be a brief reference to recent
4changes that might cause problems in the build process, and a guide for
5what to do if something doesn't work.
6
7For a more detailed description of the recommended way to build NetBSD
8using build.sh, see the BUILDING file.
9
10Note that much of the advice in this UPDATING file was written before
11build.sh existed.  Nevertheless, the advice here may be useful for
12working around specific problems with build.sh.
13
14Sections are marked with "^^^^^".  After the section on "Recent changes"
15are several sections containing more general information.
16
17See also: BUILDING, build.sh, Makefile.
18
19Recent changes:
20^^^^^^^^^^^^^^^
21
2220240630:
23	Update builds will require removing the tools objdir for binutils
24	(as most architectures should use binutils.old now).
25
2620240610:
27	Update builds are likely to require removing the objdir for
28	distrib/<arch>/cdroms - or at least references to libarchive
29	from within there after the recent libarchive update.
30
3120240504:
32	Update builds on x86 require making the `cleandir' target in
33	lib/libm, or deleting the objdir for lib/libm.
34
3520240423:
36	Update builds with x11 may fail after switching to Mesa 21.
37
3820240410:
39	Update builds may require manually deleting
40	$DESTDIR/var/run/named (and, potentially,
41	$DESTDIR/var/run/lwresd) in order to avoid checkflist failure.
42
4320240409:
44	32-bit compatibility libraries were moved into the base32
45	and debug32 sets.  HTML man pages were moved into the manhtml set.
46
4720230828:
48	If:
49        - you updated to current and ran postinstall between 20230826
50	  and 20230828 inclusive, and
51        - you are not using anything outside the base system to
52	  populate /etc/openssl/certs (e.g., manually adding
53	  certificates or using ca-certificates or mozilla-rootcerts or
54	  mozilla-rootcerts-openssl from pkgsrc),
55	delete /etc/openssl/certs and rerun postinstall or just
56	`certctl rehash'.
57
58	Otherwise, certctl(8) will think someone else has left
59	/etc/openssl/certs in the way and will avoid clobbering it on
60	upgrade from older NetBSD.
61
6220230718:
63	build.sh will use mk.conf in the same directory as build.sh instead
64	of /etc/mk.conf, unless MAKECONF is already defined in the environment.
65
6620230714:
67	Import of gcc 10.5 requires a clean build of at least tools/gcc
68	and external/gpl3/gcc* object directories. An update build
69	without cleaning will result in obscure failures in rare corner
70	cases.
71
7220230604:
73	Building native kernels with the installed make(1) instead of
74	the $TOOLDIR/bin/nbmake-${arch} wrapper will fail if userland
75	has not been updated. Note that this is an unsupported build
76	configuration (but usually works if userland is -current enough).
77
7820230523:
79	ctfmerge was fixed as macOS host tool. This may require a clean tools
80	rebuild to detect the update to tools/compat/configure.
81
8220230515:
83	New openssl build requires removal of the crypto/external/bsd/openssl
84	and tests/crypto/libcrypto subdirectories in the ${OBJDIR} hierarchy.
85	Otherwise test results may be wrong due to wrong "golden" output
86	files being installed.
87
8820230322:
89	Fixes for moved /lib/libisns* mean that builds will complain about
90	./usr/lib/libisns* being missing until src/lib/libisns is forced
91	to (re)install the files, including the symlinks.  The simplest
92	way is to clean this subdir before building.
93
9420230112:
95	New binutils require an updated ld.elf_so. If you are doing
96	(unsupported) in-place self builds (with the -E flag to build.sh),
97	make sure to have installed latest ld.elf_so before you rebuild
98	userland.
99
10020221116:
101	The addition to NetBSD's version of UFS2 of support for extended
102	attributes broke backward compatibility with previous releases
103	of NetBSD, so UFS2 has been restored to being compatible with
104	previous NetBSD releases by disabling extended attributes.
105	(Note that ACLs are implemented as extended attributes, so
106	this changes disables ACLs as well.)
107
108	Support for UFS2 with extended attributes is now available in a new
109	UFS variant called UFS2ea.  If you have created extended attributes
110	in an original UFS2 file system then "fsck -p" will now fail due to
111	the unexpected presence of extended attributes and "fsck -y" will
112	remove all extended attributes.  If you wish to preserve extended
113	attributes rather than delete them, there is a utility to convert
114	a UFS2 file system to UFS2ea and leave extended attributes in place,
115	but this should be used with caution since it will preserve any
116	extended attributes that have been corrupted by the backward
117	incompatibility too.
118
119	If you wish to use a UFS2ea file system as your root file system,
120	then you will need to update your boot loader to a version that
121	supports UFS2ea.
122
123	For more information, see:
124	https://wiki.netbsd.org/features/UFS2ea
125
12620221111:
127	The new libdrm import worsened the conflict issues for the
128	kdump/ktruss ioctl, and i915 now conflicts with base, and has
129	been turned off.  This will cause update build issues like:
130
131		kdump-ioctl.c:12175:143: error: 'DRM_IOCTL_I915_DESTROY_HEAP'
132		   undeclared here (not in a function);
133		   did you mean 'DRM_IOCTL_MODE_DESTROY_DUMB'?
134
135	You'll need to clean usr.bin/ktruss, usr.bin/kdump, and rescue.
136
13720220921:
138	Since the kernel version was bumped to 9.99.100, the bootloader
139	must be updated on x86 or EFI boot platforms in order to load
140	modules from boot.cfg(5) or interactively at the bootloader
141	prompt.
142
143	The kernel can still load modules at runtime, with modload(8)
144	or modules.conf(5), with no bootloader update.  This will not
145	affect release branches because it only applies to patch
146	numbers >=100.
147
148	On x86 (i386 or amd64) with BIOS boot, this requires copying a
149	new /usr/mdec/boot to /boot.  You can build this in the destdir
150	by running `$TOOLDIR/bin/nbmake-$ARCH dependall install' in
151	sys/arch/i386/stand.
152
153	On platforms with EFI boot (including x86 with EFI boot), this
154	requires copying a new /usr/mdec/boot*.efi to the EFI/BOOT/
155	directory on the EFI system partition.  The boot*.efi file is:
156
157	aarch64	bootaa64.efi
158	amd64	bootx64.efi
159	arm	bootarm.efi	(32-bit arm)
160	i386	bootx32.efi
161
162	You can build this in the destdir by running
163	`$TOOLDIR/bin/nbmake-$ARCH dependall install' in
164	sys/stand/efiboot/boot*.
165
16620220821:
167	Support for building extsrc/ has been deprecated.
168	EXTSRCSRCDIR and MKEXTSRC have been deprecated.
169
17020220714:
171	Updates to xorg-server and associated drivers may cause builds to
172	fail.  Cleaning both DESTDIR and the xorg build tree may be needed.
173
17420220628:
175	Changes in the build of src/games/robots require a clean build
176	of that program.
177
17820211116:
179	Changes in the xorg build require clean obj dirs for external/mit/xorg
180	(or a full clean/non-update build).
181
18220211112:
183	Device tree sources were updated for evbarm.  Some device nodes
184	(in particular, ld(4) devices on the ROCKPro64) will be renumbered.
185
18620211014:
187	MKPIE default for aarch64 has changed, a clean build is required.
188
18920210917:
190	Changed MNT_ACLS to default to POSIX1e ACLs instead of NFSv4
191	ACLs, to be compatible with FreeBSD. If you are using NFSv4 ACLs
192	and have "acls" in /etc/fstab you'll need to change it to "nfs4acls".
193
19420210711:
195	Updated GMP sources may require cleaning in tools/gmp and/or in
196	external/lgpl3/gmp/lib, particularly if GCC itself does not build.
197
19820210417:
199	GCC 10 was enabled for several platforms.  If builds fail in either
200	tools/gcc or external/gpl3/gcc, first try cleaning those objects and
201	removing the $DESTDIR/usr/include/g++ subdirectory.
202
20320201016:
204	MIPS kernel modules have been disabled until they work.  This will
205	turn up in extra files in the DESTDIR, which should be cleaned.
206
20720200925:
208	GNU MPC and MPFR have been updated.  At least MPFR needs cleaning
209	in both the tools and external dirs.
210
21120200912:
212	GCC 9 has arrived for Arm and x86 platforms, and will be coming
213	for several more, as will binutils 2.34.  Clean as required.
214
21520200907:
216	GCC 9 is coming, and binutils has been updated for MIPS.  This
217	probably requires cleaning the tools/binutils.
218
21920200811:
220	GCC updates may require cleaning the objdir.  This may occur
221	due to GCC 7.5 update, GCC 8.4 move to gcc.old, or the upcoming
222	GCC 9 upgrade.
223
22420200614:
225	blacklist* has been renamed to blocklist*. postinstall(8)
226	should handle the migration.
227
22820200601:
229	Due to a mistake in LIBISPRIVATE handling, .so libraries were
230	created in the build directories and need cleaning.
231
23220200311:
233	GCC 8 ports will need cleaning in src/tools/gcc and
234	src/external/gpl3/gcc due to GCC 8.4 update.
235
23620191118:
237	More architectures were switched to gcc8:
238	    i386, ia64 powerpc64, sparc, sparc64, arm
239	The same comments as in 20191022 apply.
240
24120191112:
242	The LLVM update requires a clean rebuild for all architectures using
243	LLVM during the tools build phase (i386, amd64, aarch64).
244
24520191022:
246	Ports amd64 and aarch64 switched to GCC 8.3 by default.
247	In-place ("expert mode", build.sh -E) builds are not supported
248	when going from a GCC 7 userland to GCC 8. Do a regular
249	build to a different DESTDIR (or preferably: build.sh -U) at least
250	once and install sets, or download comp.{tar.xz,tgz} from the
251	daily builds and install that before doing the next in-place build.
252
25320191001:
254	GCC 8.3 was imported.  Builds of src/tools/gcc may fail if
255	old builds with GCC 7 output now uses GCC 8.  Clean this
256	directory, and also clean src/external/gpl3/gcc.
257
25820190903:
259	Files with names that coincide with existing files' names on
260	case-insensitive file systems were inadvertently committed, for
261	radeon GPU firmware.  We cannot mark these as obsolete for
262	postinstall to fix, so if you updated src since 2019-08-26, and
263	ran build.sh distribution or ran build.sh release, you must
264	manually delete the following files in your DESTDIR (which is
265	usually $OBJDIR/destir.$ARCH), or from / if you have installed
266	them:
267
268		/libdata/firmware/radeon/bonaire_ce.bin
269		/libdata/firmware/radeon/bonaire_mc.bin
270		/libdata/firmware/radeon/bonaire_me.bin
271		/libdata/firmware/radeon/bonaire_mec.bin
272		/libdata/firmware/radeon/bonaire_pfp.bin
273		/libdata/firmware/radeon/bonaire_rlc.bin
274		/libdata/firmware/radeon/bonaire_sdma.bin
275		/libdata/firmware/radeon/bonaire_smc.bin
276		/libdata/firmware/radeon/bonaire_uvd.bin
277		/libdata/firmware/radeon/hainan_ce.bin
278		/libdata/firmware/radeon/hainan_mc.bin
279		/libdata/firmware/radeon/hainan_me.bin
280		/libdata/firmware/radeon/hainan_pfp.bin
281		/libdata/firmware/radeon/hainan_rlc.bin
282		/libdata/firmware/radeon/hainan_smc.bin
283		/libdata/firmware/radeon/hawaii_ce.bin
284		/libdata/firmware/radeon/hawaii_mc.bin
285		/libdata/firmware/radeon/hawaii_me.bin
286		/libdata/firmware/radeon/hawaii_mec.bin
287		/libdata/firmware/radeon/hawaii_pfp.bin
288		/libdata/firmware/radeon/hawaii_rlc.bin
289		/libdata/firmware/radeon/hawaii_sdma.bin
290		/libdata/firmware/radeon/hawaii_smc.bin
291		/libdata/firmware/radeon/kabini_ce.bin
292		/libdata/firmware/radeon/kabini_me.bin
293		/libdata/firmware/radeon/kabini_mec.bin
294		/libdata/firmware/radeon/kabini_pfp.bin
295		/libdata/firmware/radeon/kabini_rlc.bin
296		/libdata/firmware/radeon/kabini_sdma.bin
297		/libdata/firmware/radeon/kaveri_ce.bin
298		/libdata/firmware/radeon/kaveri_me.bin
299		/libdata/firmware/radeon/kaveri_mec.bin
300		/libdata/firmware/radeon/kaveri_mec2.bin
301		/libdata/firmware/radeon/kaveri_pfp.bin
302		/libdata/firmware/radeon/kaveri_rlc.bin
303		/libdata/firmware/radeon/kaveri_sdma.bin
304		/libdata/firmware/radeon/mullins_ce.bin
305		/libdata/firmware/radeon/mullins_me.bin
306		/libdata/firmware/radeon/mullins_mec.bin
307		/libdata/firmware/radeon/mullins_pfp.bin
308		/libdata/firmware/radeon/mullins_rlc.bin
309		/libdata/firmware/radeon/mullins_sdma.bin
310		/libdata/firmware/radeon/oland_ce.bin
311		/libdata/firmware/radeon/oland_mc.bin
312		/libdata/firmware/radeon/oland_me.bin
313		/libdata/firmware/radeon/oland_pfp.bin
314		/libdata/firmware/radeon/oland_rlc.bin
315		/libdata/firmware/radeon/oland_smc.bin
316		/libdata/firmware/radeon/pitcairn_ce.bin
317		/libdata/firmware/radeon/pitcairn_mc.bin
318		/libdata/firmware/radeon/pitcairn_me.bin
319		/libdata/firmware/radeon/pitcairn_pfp.bin
320		/libdata/firmware/radeon/pitcairn_rlc.bin
321		/libdata/firmware/radeon/pitcairn_smc.bin
322		/libdata/firmware/radeon/tahiti_ce.bin
323		/libdata/firmware/radeon/tahiti_mc.bin
324		/libdata/firmware/radeon/tahiti_me.bin
325		/libdata/firmware/radeon/tahiti_pfp.bin
326		/libdata/firmware/radeon/tahiti_rlc.bin
327		/libdata/firmware/radeon/tahiti_smc.bin
328		/libdata/firmware/radeon/verde_ce.bin
329		/libdata/firmware/radeon/verde_mc.bin
330		/libdata/firmware/radeon/verde_me.bin
331		/libdata/firmware/radeon/verde_pfp.bin
332		/libdata/firmware/radeon/verde_rlc.bin
333		/libdata/firmware/radeon/verde_smc.bin
334
335	We will re-import these radeon firmware images another way
336	later.
337
33820190727:
339	The uefi bootloader has gained tftp support and needs a clean
340	build. If you do update builds, manually clean its object
341	directory by something like:
342	cd sys/arch/i386/stand/efiboot && make clean
343
34420190723:
345	The jemalloc allocator in libc is now built without extended
346	debugging (for performance reasons). In update builds make sure
347	to rebuild it completely, by removing all affected object files,
348	including compat builds, something like:
349	cd /usr/obj && find . -type d -name jemalloc|xargs rm -rf
350
35120190207:
352	GCC 7 switched for many ports.  Update builds are likely to fail.
353
354Hints for a more successful build:
355^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
356    Use build.sh, but do not use its "expert mode":
357	This will automatically build the tools in the
358	   correct order, and it will keep the tools and the
359	   new build products from interfering with the running
360	   system.  This will allow you to ignore most of the
361	   other advice in this file.
362    Build a new kernel first:
363	This makes sure that any new system calls or features
364	   expected by the new userland will be present.  This
365	   helps to avoid critical errors when upgrading.
366    Use object directories:
367	This helps to keep stale object
368	   files from polluting the build if a Makefile "forgets"
369	   about one.  It also makes it easier to clean up after
370	   a build.  It's also necessary if you want to use the
371	   same source tree for multiple machines.
372	   To use object directories with build.sh:
373	    a) invoke build.sh with the "-M" or "-O" options.
374	   To use object directories without using build.sh:
375	    a) cd /usr/src ; make cleandir
376	    b) Add "OBJMACHINE=yes" to /etc/mk.conf
377	    c) Add "MKOBJDIRS=yes" to /etc/mk.conf
378	    d) cd /usr/src ; make build
379	   Note that running "make obj" in a directory will create
380	   in obj.$MACHINE directory.
381    Build to a DESTDIR:
382	This helps to keep old installed files (especially libraries)
383	   from interfering with the new build.
384	   To build to a DESTDIR with build.sh, use the "-D" option.
385	   To build to a DESTDIR without using build.sh, set the DESTDIR
386	   environment variable before running make build.  It should be
387	   set to the pathname of an initially empty directory.
388	   Problems: if you do not use build.sh, you might need to
389		update critical utilities without using DESTDIR since
390		nothing is executed from what is installed in DESTDIR.
391		(See critical utils, below.)
392    Build often:
393	This keeps critical utilities current enough to not choke
394	on any other part of the source tree that depends on up to
395	date functionality.  If you use build.sh, you should not have
396	this problem.
397
398What to do if things don't work:
399^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
400When things don't work there are usually a few things that commonly
401should be done.
402    1)	make includes
403	This should be done automatically by make build.
404    2)  cd share/mk && make install
405	Again, automatically done by make build.
406
407Failsafe rebuild of a small part of the tree:
408^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
409To make sure you rebuild something correctly you want to do
410something like the following:
411    1)  Make sure the includes and .mk files are up to date.
412    2)  Make sure any program used to build the particular
413	utility is up to date.  (yacc, lex, etc...)
414    3)  cd ...path/to/util...
415	make cleandir
416	rm ...all obj directories...
417	make cleandir			# yes, again
418	make obj
419	make depend && make
420
421Failsafe rebuild of the entire tree:
422^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
423If you really want to make sure the source tree is clean and
424ready for a build try the following.  Note that sourcing /etc/mk.conf
425(a make(1) Makefile) in this manner is not right, and will not work
426for anyone who uses any make(1) features in /etc/mk.conf.
427
428---cut here---
429#!/bin/sh
430. /etc/mk.conf
431
432if [ -z $NETBSDSRCDIR ] ; then
433    NETBSDSRCDIR=/usr/src
434fi
435if [ \! -d $NETBSDSRCDIR ] ; then
436    echo Unable to find sources
437    exit 1
438fi
439find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
440
441if [ -z $BSDOBJDIR ] ; then
442    BSDOBJDIR=/usr/obj
443fi
444if [ -d $BSDOBJDIR ] ; then
445    rm -rf $BSDOBJDIR
446fi
447
448cd $NETBSDSRCDIR && make cleandir
449
450---cut here---
451
452Critical utilities:
453^^^^^^^^^^^^^^^^^^^
454	usr.bin/make
455	usr.bin/yacc
456	usr.bin/lex
457	usr.bin/xlint
458	usr.bin/config
459
460Other problems and possible solutions:
461^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
462Symptom:Complaints involving a Makefile.
463Fix:	Rebuild usr.bin/make:
464	cd usr.bin/make && make && make install
465	Or, a failsafe method if that doesn't work:
466	cd usr.bin/make && cc -DMAKE_NATIVE *.c -I. -o make \
467	&& install make /usr/bin
468
469Fix:	Make sure .mk files are up to date.
470	cd share/mk && make install
471
472Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
473Fix:	Rebuild usr.bin/config
474
475Symptom:Obsolete intermediate files are used during compilation
476Fix:	Try the following sequence of commands in the directory in question.
477	make cleandir; rm `make print-objdir`; make cleandir; make obj
478	(If you built the tree without "make obj" in the past, obsolete files
479	may remain.  The command tries to clean everything up)
480
481Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible
482	pointer type
483Fix:	Rebuild and install usr.bin/menuc
484
485Symptom:mklocale not found during build in share/locale/ctype
486Fix:	Build and install usr.bin/mklocale
487
488Symptom:undefined reference to `__assert13' or `__unsetenv13'
489Fix:    Rebuild and install lib/libc
490
491Symptom:usr.bin/config fails to build.
492Fix:	Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
493
494Symptom:undefined reference to `getprogname' or `setprogname'
495Fix:    Rebuild and install lib/libc
496
497Symptom:Update build fails in src/tools/gcc complaining that a variable
498	(e.g. CPPFLAGS) has changed since the previous run.
499Fix:    Run "nbmake-${ARCH} clean" in src/tools/gcc or do a clean build.
500
501Symptom:cvs [update aborted]: cannot open directory /cvsroot/src/...:
502	No such file or directory.
503Cause:	If a directory is created by mistake, then it is sometimes
504	deleted from the CVS repository using administrative commands
505	that bypass the normal cvs access controls.  If your cvs working tree
506	contains references to a directory that has been deleted on the
507	server in this way, then "cvs update" reports this error.
508Fix:	Recursively delete the affected directory from your working tree
509	and try the update again.
510