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UPDATING revision 1.312
      1 $NetBSD: UPDATING,v 1.312 2020/08/20 03:09:34 mrg 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 Sections are marked with "^^^^^".  After the section on "Recent changes"
     15 are several sections containing more general information.
     16 
     17 See also: BUILDING, build.sh, Makefile.
     18 
     19 Recent changes:
     20 ^^^^^^^^^^^^^^^
     21 
     22 20200811:
     23 	GCC updates may require cleaning the objdir.  This may occur
     24 	due to GCC 7.5 update, GCC 8.4 move to gcc.old, or the upcoming
     25 	GCC 9 upgrade.
     26 
     27 20200614:
     28 	blacklist* has been renamed to blocklist*. postinstall(8)
     29 	should handle the migration
     30 
     31 20200601:
     32 	Due to a mistake in LIBISPRIVATE handling, .so libraries were
     33 	created in the build directories and need cleaning.
     34 
     35 20200311:
     36 	GCC 8 ports will need cleaning in src/tools/gcc and
     37 	src/external/gpl3/gcc due to GCC 8.4 update.
     38 
     39 20191118:
     40 	More architectures were switched to gcc8:
     41 	    i386, ia64 powerpc64, sparc, sparc64, arm
     42 	The same comments as in 20191022 apply.
     43 
     44 20191112:
     45 	The LLVM update requires a clean rebuild for all architectures using
     46 	LLVM during the tools build phase (i386, amd64, aarch64).
     47 
     48 20191022:
     49 	Ports amd64 and aarch64 switched to GCC 8.3 by default.
     50 	In-place ("expert mode", build.sh -E) builds are not supported
     51 	when going from a GCC 7 userland to GCC 8. Do a regular
     52 	build to a different DESTDIR (or preferably: build.sh -U) at least
     53 	once and install sets, or download comp.{tar.xz,tgz} from the
     54 	daily builds and install that before doing the next in-place build.
     55 
     56 20191001:
     57 	GCC 8.3 was imported.  Builds of src/tools/gcc may fail if
     58 	old builds with GCC 7 output now uses GCC 8.  Clean this
     59 	directory, and also clean src/external/gpl3/gcc.
     60 
     61 20190903:
     62 	Files with names that coincide with existing files' names on
     63 	case-insensitive file systems were inadvertently committed, for
     64 	radeon GPU firmware.  We cannot mark these as obsolete for
     65 	postinstall to fix, so if you updated src since 2019-08-26, and
     66 	ran build.sh distribution or ran build.sh release, you must
     67 	manually delete the following files in your DESTDIR (which is
     68 	usually $OBJDIR/destir.$ARCH), or from / if you have installed
     69 	them:
     70 
     71 		/libdata/firmware/radeon/bonaire_ce.bin
     72 		/libdata/firmware/radeon/bonaire_mc.bin
     73 		/libdata/firmware/radeon/bonaire_me.bin
     74 		/libdata/firmware/radeon/bonaire_mec.bin
     75 		/libdata/firmware/radeon/bonaire_pfp.bin
     76 		/libdata/firmware/radeon/bonaire_rlc.bin
     77 		/libdata/firmware/radeon/bonaire_sdma.bin
     78 		/libdata/firmware/radeon/bonaire_smc.bin
     79 		/libdata/firmware/radeon/bonaire_uvd.bin
     80 		/libdata/firmware/radeon/hainan_ce.bin
     81 		/libdata/firmware/radeon/hainan_mc.bin
     82 		/libdata/firmware/radeon/hainan_me.bin
     83 		/libdata/firmware/radeon/hainan_pfp.bin
     84 		/libdata/firmware/radeon/hainan_rlc.bin
     85 		/libdata/firmware/radeon/hainan_smc.bin
     86 		/libdata/firmware/radeon/hawaii_ce.bin
     87 		/libdata/firmware/radeon/hawaii_mc.bin
     88 		/libdata/firmware/radeon/hawaii_me.bin
     89 		/libdata/firmware/radeon/hawaii_mec.bin
     90 		/libdata/firmware/radeon/hawaii_pfp.bin
     91 		/libdata/firmware/radeon/hawaii_rlc.bin
     92 		/libdata/firmware/radeon/hawaii_sdma.bin
     93 		/libdata/firmware/radeon/hawaii_smc.bin
     94 		/libdata/firmware/radeon/kabini_ce.bin
     95 		/libdata/firmware/radeon/kabini_me.bin
     96 		/libdata/firmware/radeon/kabini_mec.bin
     97 		/libdata/firmware/radeon/kabini_pfp.bin
     98 		/libdata/firmware/radeon/kabini_rlc.bin
     99 		/libdata/firmware/radeon/kabini_sdma.bin
    100 		/libdata/firmware/radeon/kaveri_ce.bin
    101 		/libdata/firmware/radeon/kaveri_me.bin
    102 		/libdata/firmware/radeon/kaveri_mec.bin
    103 		/libdata/firmware/radeon/kaveri_mec2.bin
    104 		/libdata/firmware/radeon/kaveri_pfp.bin
    105 		/libdata/firmware/radeon/kaveri_rlc.bin
    106 		/libdata/firmware/radeon/kaveri_sdma.bin
    107 		/libdata/firmware/radeon/mullins_ce.bin
    108 		/libdata/firmware/radeon/mullins_me.bin
    109 		/libdata/firmware/radeon/mullins_mec.bin
    110 		/libdata/firmware/radeon/mullins_pfp.bin
    111 		/libdata/firmware/radeon/mullins_rlc.bin
    112 		/libdata/firmware/radeon/mullins_sdma.bin
    113 		/libdata/firmware/radeon/oland_ce.bin
    114 		/libdata/firmware/radeon/oland_mc.bin
    115 		/libdata/firmware/radeon/oland_me.bin
    116 		/libdata/firmware/radeon/oland_pfp.bin
    117 		/libdata/firmware/radeon/oland_rlc.bin
    118 		/libdata/firmware/radeon/oland_smc.bin
    119 		/libdata/firmware/radeon/pitcairn_ce.bin
    120 		/libdata/firmware/radeon/pitcairn_mc.bin
    121 		/libdata/firmware/radeon/pitcairn_me.bin
    122 		/libdata/firmware/radeon/pitcairn_pfp.bin
    123 		/libdata/firmware/radeon/pitcairn_rlc.bin
    124 		/libdata/firmware/radeon/pitcairn_smc.bin
    125 		/libdata/firmware/radeon/tahiti_ce.bin
    126 		/libdata/firmware/radeon/tahiti_mc.bin
    127 		/libdata/firmware/radeon/tahiti_me.bin
    128 		/libdata/firmware/radeon/tahiti_pfp.bin
    129 		/libdata/firmware/radeon/tahiti_rlc.bin
    130 		/libdata/firmware/radeon/tahiti_smc.bin
    131 		/libdata/firmware/radeon/verde_ce.bin
    132 		/libdata/firmware/radeon/verde_mc.bin
    133 		/libdata/firmware/radeon/verde_me.bin
    134 		/libdata/firmware/radeon/verde_pfp.bin
    135 		/libdata/firmware/radeon/verde_rlc.bin
    136 		/libdata/firmware/radeon/verde_smc.bin
    137 
    138 	We will re-import these radeon firmware images another way
    139 	later.
    140 
    141 20190727:
    142 	The uefi bootloader has gained tftp support and needs a clean
    143 	build. If you do update builds, manually clean its object
    144 	directory by something like:
    145 	cd sys/arch/i386/stand/efiboot && make clean
    146 
    147 20190723:
    148 	The jemalloc allocator in libc is now build without extended
    149 	debugging (for performance reasons). In update builds make sure
    150 	to rebuild it completly, by removing all affected object files,
    151 	including compat builds, something like:
    152 	cd /usr/obj && find . -type d -name jemalloc|xargs rm -rf
    153 
    154 20190207:
    155 	GCC 7 switched for many ports.  Update builds are likely to fail.
    156 
    157 20180924:
    158 	A newer OpenSSL version has been imported. If you are doing
    159 	update builds, make sure to remove all old obj dirs, like:
    160 	cd /usr/obj && find . -type d -name openssl | xargs rm -rf
    161 
    162 20180717:
    163 	On aarch64 int64_t and related types have changed from long long
    164 	to long. This requires recompiling all C++ binaries.
    165 
    166 20180713:
    167 	On amd64 and i386 static binaries are now build position
    168 	independend. This requires recompilation of all object
    169 	files used to create the crunched /rescue binary.
    170 	Clean the rescue directory in your obj directory before
    171 	doing an update build, otherwise linking will fail.
    172 
    173 20180414:
    174 	Existing binutils was migrated to binutils.old.  Manual
    175 	removal of tools/binutils objects directory may be required
    176 	to fix tools build failure.
    177 
    178 20180311:
    179 	bdftopcf was updated and may need cleaning in the
    180 	src/external/mit/xorg/tools/bdftopcf subdirectory if there are
    181 	link errors.
    182 
    183 20180212:
    184 	between OpenSSL and GCC updates, many things may fail to build.
    185 	any failure that looks like GCC or openssl is best handled by
    186 	a clean destdir and objdir.  Full cleandir and destdir deletion
    187 	is recommended if build failures occur.
    188 
    189 20171225:
    190 	removal of the vadvise syscall requires manual removal of all
    191 	associated files from the libc build object directory (including
    192 	the .depend files) - a command like:
    193 		cd $OBJ && find . -type d -name libc | xargs rm -rf
    194 	For architectures that support multiple "compat" binary targets,
    195 	you'll need to cleanup both the regular libc directory and the
    196 	compat ones (the above command will do that).
    197 
    198 20171010:
    199 	a change to the build structure of external/bsd/acpica/bin/iasl
    200 	means that its objdir (or *.d and .depend at least) might need
    201 	to be manually removed - or a build done once without -u.
    202 
    203 20170822:
    204 	a new version of GMP has been imported and probably
    205 	will break parts of builds related to themselves or GCC, both
    206 	in the tools and the native section.  Remove all GCC, GMP, MPFR
    207 	and MPC objdirs or build once without -u.
    208 
    209 20170816:
    210 	a new version of MPFR and MPC have been imported and probably
    211 	will break parts of builds related to themselves or GCC, both
    212 	in the tools and the native section.  Remove all GCC, GMP, MPFR
    213 	and MPC objdirs or build once without -u.
    214 
    215 20170402:
    216 	a new version of dhcpcd has been imported, which does not support
    217 	update builds from the previous version. Remove your
    218 	external/bsd/dhcpcd object dir or build once without -u.
    219 
    220 20170211:
    221 	a new terminfo database has been imported.
    222 	The structure of it has changed slightly from prior versions and
    223 	an updated tic tool is required.
    224 	If you build.sh, don't use -u
    225 
    226 20170207:
    227 	various arch dependent libc/exect.S files were removed
    228 	Either remove the obj directories (lib/libc and compat/amd64/i386/lib
    229 	if it exists) or do a clean build.
    230 	(This is a bug in the make system, it should be corrected without
    231 	human intervention, but isn't.)
    232 
    233 20170104:
    234 	xinput build options have changed.
    235 	Remove the obj directory (external/mit/xorg/bin/xinput)
    236 	if you build.sh -u
    237 
    238 20170103:
    239 	a new version of flex has been imported.
    240 	Remove the file from obj (external/bsd/flex)
    241 	if you build.sh -u
    242 
    243 20161014:
    244 	a new version of OpenSSL has been imported.
    245 	Remove the files from obj (crypto/external/bsd/openssl) 
    246 	if you build.sh -u
    247 
    248 20161009:
    249 	a new version of dhcpcd has been imported with slightly changed
    250 	build infrastructure. When doing a build.sh -u this requires
    251 	pruning the external/bsd/dhcpcd objdir.
    252 
    253 20160914:
    254 	i386, amd64, shark, ofppc and macppc have joined shark and x68k
    255 	ports in using xorg-server 1.18. This requires a clean destdir
    256 	and a clean objdir.
    257 
    258 20160527:
    259 	i386 needs a full cleandir or objdir deletion because PIE has
    260 	been enabled. (see the amd64 entry two down for further info)
    261 
    262 20160418:
    263 	libedit needs manual removal of all autogenerated files since
    264 	some of them are not autogenerated anymore. Remember that there
    265 	might be two copies of libedit if your platform builds "compat".
    266 
    267 20160410:
    268 	amd64 needs full "make cleandir" or deletion of objdir now that
    269 	PIE has been enabled for amd64.  PIE, or position-independent
    270 	executables, means all code, including executables and not just
    271 	shared libraries, is position-independent and hence able to be
    272 	relocated by ASLR, address space layout randomization.
    273 
    274 	The change was made in Makefile variables for compiler and
    275 	linker flags, for which make(1) does not record dependencies,
    276 	hence it is unable to detect that all .o files need rebuilding.
    277 
    278 	Partial rebuilds with some modified source files will likely
    279 	fail when linking executables, since the linker refuses to mix
    280 	position-independent code with position-dependent code in
    281 	position-independent executables:
    282 
    283 		.../x86_64--netbsd/bin/ld: foo.o: relocation R_X86_64_32 against `...' cannot be used when making a shared object; recompile with -fPIC
    284 
    285 20160401:
    286 	Ports switching to GCC 5.3 will need a full "make cleandir".
    287 	Some people have found that cleandir is not sufficient, so if
    288 	in doubt delete the entire object directory tree for gcc.
    289 
    290 20160306:
    291 	NetBSD's regexp implementation is now part of libnbcompat.
    292 	Nblex, nbm4, nbpax, nbsed use it and they may crash on
    293 	non-NetBSD hosts if linked with stale object files produced
    294 	while they included a non-NetBSD regex.h.
    295 	In any case, you should "make cleandir" at least these tools
    296 	before updating your toolchain.
    297 
    298 20160125:
    299 	Dtrace has been enabled by default on some architectures.
    300 	When doing an update build, make sure to clean the etc/mtree
    301 	object directory before starting the build - otherwise the
    302 	needed directories in destdir will not be created.
    303 	An easy way to do this is:
    304 	   cd src/etc/mtree && $TOOLDIR/bin/nbmake-$arch cleandir
    305 
    306 20150818:
    307 	New acpica requires "make cleandir" in src/external/bsd/acpica
    308 	again.
    309 
    310 20150413:
    311 	New acpica requires "make cleandir" and reinstalling yacc
    312 	in /usr/src/external/bsd/byacc and /usr/src/tools/yacc and
    313 	also "make cleandir" in /usr/src/external/bsd/acpica.
    314 
    315 20150404:
    316 	Lint changes require a full rebuild of the tool, so make
    317 	sure to build without -u option to build.sh, or manually
    318 	do a make cleandir in src/tools/lint1 and
    319 	src/usr.bin/xlint.
    320 
    321 20150310:
    322 	Improvements to openssl for arm mean that update builds of
    323 	the openssl libraries will fail. A make cleandir in
    324 	external/bsd/openssl/lib is needed
    325 
    326 20141026:
    327 	A mishap during the import of pppd may cause your corruption
    328 	in your cvs directory if you happened to do a cvs update
    329 	during a short period of time. To fix, just remove the
    330 	directory src/external/bsd/ppp/dist/pppd completely
    331 	and let cvs restore it on next update.
    332 
    333 20140721:
    334 	The src/external/mit/lua/src directory was accidentally created
    335 	and then deleted in the CVS repository.  If you get errors like
    336 
    337 	cvs [update aborted]: cannot open directory
    338 	/cvsroot/src/external/mit/lua/src: No such file or directory
    339 
    340 	then delete your local copy of that directory tree and try again.
    341 
    342 20140530:
    343 	ARM eABI switched to DWARF based exception handling. This requires
    344 	rebuilding all C++ code. It is strongly advised to do a clean build.
    345 
    346 20140131:
    347 	The new compiler_rt/libc integration moved a few things. It is strongly
    348 	advised to do a clean build. At least lib/libc, the compat version(s)
    349 	of libc, libkern, rump and the kernels need to be cleaned.
    350 
    351 20131227:
    352 	1. The new ntpd runs in a restricted mode to prevent amplification
    353 	   attacks. If you need ntpdc to work you need to explicitly enable
    354 	   mode7 in your config file. Make sure you put the necessary restrict
    355 	   statements to avoid being exposed.
    356 	2. strncat has moved from lib/libc to common/lib/libc; you might need
    357 	   to make clean in libc
    358 
    359 20131129:
    360 	The GMP sources were updated, and builds will likely fail without
    361 	cleaning their build trees for both tools and in-tree, like below.
    362 
    363 20131128:
    364 	The MPC and MPFR sources were updated, and builds may require their
    365 	tools and in-tree directories cleaned for successful updates.
    366 
    367 20130605:
    368 	The kernel option FAST_IPSEC no longer exists, it's been renamed
    369 	to IPSEC (and the older IPSEC version removed).
    370 
    371 20130605:
    372 	Previous freetype installations eroneously installed private
    373 	header files. If you are building against a non-empty $DESTDIR,
    374 	please remove ${DESTDIR}//usr/X11R7/include/freetype2/freetype/.
    375 
    376 20130531:
    377 	The xdm update may cause build failure due to xdm.man being
    378 	in the obj tree.  Make sure to ensure any like this:
    379 		nbmake: nbmake: don't know how to make xdm.man. Stop
    380 	is fixed by deleting the xdm.man in the obj tree.
    381 
    382 20130530:
    383 	Updates of many xsrc packages will leave old .pc files around.
    384 	Best to clean out the xsrc objdir entirely before rebuilds.
    385 
    386 20130301:
    387 	The removal of netiso requires manual removal of /usr/include/netiso
    388 	prior to the build and make cleandir in /usr/src/usr.bin/{ktruss,kdump}
    389 
    390 20120726:
    391 	The update of OpenSSL requires cleaning both the OpenSSL build
    392 	directory and DESTDIR.  *Even non-update builds require cleaning
    393 	DESTDIR.* Builds done without taking these steps may fail, or in
    394 	some cases may succeed and install broken OpenSSL libraries that
    395 	cause third-party software to link incorrectly and/or crash.
    396 
    397 20120507:
    398 	The database schema for makemandb was changed.  You will
    399 	need to update the database using 'makemandb -f' or wait
    400 	for the next weekly run to fix it.
    401 
    402 20120319:
    403 	sys/conf/Makefile.kern.inc has been modified to adjust the
    404 	size of db_symtab automatically.  You need to update dbsym in
    405 	your $TOOLDIR to build kernels with options SYMTAB_SPACE.  If
    406 	you don't want this behavior, add AUTO_SYMTAB_SPACE=no to your
    407 	mk.conf.
    408 
    409 20120216:
    410 	Default for MKCATPAGES changed to NO.  Update builds will fail
    411 	unless DESTDIR is cleaned manually.  If you built between 20120207
    412 	and 20120216, daily and weekly could have created an unreadable
    413 	/var/db/man.db index for apropos.  Running makemandb -f or
    414 	the next run of weekly will fix it.
    415 
    416 20111227:
    417 	If you built between 20111225 and 20111227 you need to remove
    418 	/usr/lib/libpam.so.4* and /usr/lib/security/*.so.4, since the
    419 	bump has been reverted.
    420 
    421 20111125:
    422 	The "rnd" pseudodevice has been added to sys/conf/std, which
    423 	means it should no longer be explicitly listed in kernel
    424 	configuration files.  The line "pseudo-device rnd" should be
    425 	removed from any custom kernel config files users may have.
    426 
    427 20111119:
    428 	A problem with the datastructures used by the rndctl(8)
    429 	utility (pointers in datastructures in an array, making 32->64
    430 	bit compatibility very painful) has been fixed in a
    431 	non-backwards-compatible way.  If you replace your kernel,
    432 	replace your rndctl executable too.
    433 
    434 20111001:
    435 	the prop_*_send_syscall() functions from proplib(3) have been
    436 	changed and their new version is not backward compatible with the old
    437 	one.  So ensure that all consumers of these functions (currently:
    438 	quota2 code and its tests) are updated together with the new lib.
    439 
    440 20110817:
    441 	sparc has been changed to use GCC 4.5.3, so any objdir or
    442 	DESTDIR for them should be deleted before updating.
    443 
    444 20110806:
    445 	i386 and amd64 have been changed to use GCC 4.5.3, so any
    446 	objdir or DESTDIR for them should be deleted before updating.
    447 
    448 20110805:
    449 	The update to GCC 4.5.3 requires a non-trivial portion of
    450 	the tree to be cleaned.  Best to delete both objdir and
    451 	DESTDIR before running this update.  So far, only the
    452 	sparc64, mips and powerpc platforms have changed.
    453 
    454 20110803:
    455 	The layout of external/public-domain/xz has changed.  To do an
    456 	update build you will have to remove the contents of the OBJDIR
    457 	for external/public-domain/xz/bin by hand as the xz entry there
    458 	is now a directory.
    459 
    460 20110410:
    461 	The configuration of src/tools/gcc has changed.  To do an
    462 	update build you have to clean both tools/binutils and
    463 	tools/gcc by hand.
    464 
    465 20110328:
    466 	Building the Xorg binary was moved into a subdirectory to fix
    467 	ordering issues with "make all".  It may be necessary to remove
    468 	the OBJDIR for external/mit/xorg/server/xorg-server/hw/xfree86
    469 	if your update build fails, as the "Xorg" entry there is now a
    470 	directory.
    471 
    472 20110121:
    473 	Assembler files no longer use -traditional-cpp.  This can break
    474 	the build of individual parts of the tree.  This is handled
    475 	correctly by build.sh.  Manual builds have to update /usr/share/mk
    476 	and re-run config(1) for any kernel configurations as needed.
    477 
    478 20101217:
    479 	The tcpdump(8) program was changed to drop privileges and chroot(2)
    480 	by default.  It may be necessary to manually update passwd(5) and
    481 	group(5) in order to make the program work with existing setups.
    482 
    483 20101125:
    484 	The latest changes to setenv(3) dissallow setting environment
    485 	variables with names that contain '='.  Revision 1.18 of env.c
    486 	assumed that this was allowed.  Installing a new libc with an
    487 	old copy of /usr/bin/env causes env x=1 printenv | grep x= to
    488 	break which affects the autoconf tests for dependency finding,
    489 	so building gcc will end up printing:
    490 	    checking dependency style of gcc... none
    491 	    configure: error: no usable dependency style found
    492 	Fix it by rebuilding and re-installing env.
    493 
    494 20101119:
    495 	Recent Xorg updates in xsrc/external/mit/ may cause various build
    496 	or run-time problems.  Delete your entire DESTDIR and OBJDIR if you
    497 	have any build problems with xsrc, or problems with mismatched
    498 	versions between xorg-server and drivers.
    499 
    500 20100604:
    501 	The update of ATF to 0.9 causes old tests written in shell to fail
    502 	unless they are rebuilt.  If you are building with MKUPDATE=yes,
    503 	you need to clean the src/external/bsd/atf/tests/ and the src/tests/
    504 	trees by hand.
    505 
    506 20100522:
    507 	Recent Xorg updates in xsrc/external/mit/ will cause various build
    508 	problems.  Delete your entire DESTDIR and OBJDIR if you have any
    509 	build problems with xsrc.
    510 
    511 20100522:
    512 	private section of <ctype.h> was splitted, and now mklocale(1)
    513 	include ctype_local.h, so you have to make cleandir in tools/mklocale.
    514 
    515 20100520:
    516 	The location of the xkb compiled descriptions has changed.  Please
    517 	remove usr/X11R7/lib/X11/xkb/compiled from your $DESTDIR.
    518 
    519 20100222:
    520 	The shared objects file extension has been changed from .so to
    521 	.pico, in order to avoid conflicts with shared libraries names
    522 	libXX.so.  All now stale regular .so files can be removed from
    523 	your object directories.
    524 
    525 20100204:
    526 	The termcap database has been removed from the sources,
    527 	but has not been marked obsolete so it is not removed
    528 	from the system when upgrading.
    529 	As such, you will need to remove them from your object
    530 	and destination directories.
    531 
    532 20091101:
    533         After updating, it may be necessary to make the 'cleandir'
    534         target in src/tools/yacc/ and in src/usr.bin/yacc/ before a
    535         'build.sh -u tools' or 'build.sh -u distribution'.  Ditto
    536         src/tools/lex/ and src/usr.bin/lex/.
    537 
    538 20091001:
    539 	On amd64 you must rebuild tools (to get the new binutils)
    540 	before building a kernel, or the build fails on cpufunc.S.
    541 
    542 20091001:
    543 	An error will create a ./usr/X11R7/lib/X11/xkb/compiled/xkb
    544 	symlink, failing the build.  Delete the link, and the subdir
    545 	it is in, and retry your build.
    546 
    547 20090718:
    548 	libc build changed so that strchr() provides the extra entry
    549 	point for index().  Update build of libc.a (and libc_pic.a)
    550 	may fail because the archive contains the unwanted index.o.
    551 	(Similarly for strrchr() and rindex().)
    552 
    553 20090709:
    554 	Native Xorg was upgraded again.  Builds will probably fail again
    555 	without a clean objdir, at least for src/external/mit/xorg.
    556 
    557 20090616:
    558 	Native Xorg was upgraded.  Builds will need a clean objdir for
    559 	src/external/mit/xorg.  Upgrading a system from sets will not
    560 	work properly yet as the /usr/X11R7/lib/X11/xkb/symbols/pc
    561 	subdirectory has been changed into a file, and this needs to
    562 	be manually "rm -r"'ed before installing xbase.tgz.
    563 
    564 20090501:
    565 	Several new functions were added to string.h/libc, and this
    566 	can cause autoconf problems during the tool build for people
    567 	who fail to clean out their tools objects properly.  If you
    568 	note messages about stpcpy, stpncpy or strnlen accompanying a
    569 	failure during the tool build, clean out all your tools
    570 	objects and start again.
    571 
    572 20090325:
    573 	The i386 port was switched to i486 default toolchain.  This requires
    574 	cleaning your src/tools directory and $TOOLDIR and rebuilding them.
    575 
    576 20090126:
    577 	The __posix_fadvise50 system call changed assembly stub type.  You
    578 	need to 'rm -f __posix_fadvise50.*' in the libc build directory
    579 	to avoid using the old assembly stub.
    580 
    581 20090202:
    582 	pkg_install now depends on the pkgdb cache for automatic conflict
    583 	detection.  It is recommented to rebuild the cache with
    584 	``pkg_admin rebuild''.
    585 
    586 20090110:
    587 	time_t and dev_t have been bumped to 64 bit quantities.  To upgrade:
    588 	1. Make sure your kernel has COMPAT_50 in it.  Build and install.
    589 	   This is needed even in the MODULAR kernel because there is
    590 	   conditionally compiled code in rtsock.c.
    591 	2. make sure build.sh completes and the binaries in a chroot work
    592 	   before installing.
    593 	3. If you don't use build.sh and you build directly to root, and
    594 	   your build breaks in the middle, don't despair.  Make sure headers
    595 	   are installed properly, and start building libraries first libc
    596 	   and libutil, install them and then continue building all the
    597 	   libraries in src/lib and src/gnu/lib and install them.  Once
    598 	   the new libraries are installed, you can restart the build.
    599 	4. If you compile packages and you notice link time warnings,
    600 	   rebuild the required packages to update their shared libraries.
    601 	   Any package you rebuild will require rebuilding all the packages
    602 	   that depend on it.
    603 	5. Next time you run pwd_mkdb with the new binary, the file
    604 	   will be upgraded and it will not be backwards compatible.
    605 	6. The utmpx/wtmpx files (/var/run/utmpx and /var/log/wtmpx, see
    606 	   lastlogx(5)) have been versioned, and there is a heuristic
    607 	   for utmp.  You are better off removing the old files after
    608 	   upgrading.  The automated clearing of /var/run during
    609 	   boot, and the automated rotating of files in /var/log by
    610 	   newsyslog(8), may mean that you do not have to remove the
    611 	   files manually.
    612 	7. The optional accounting file (/var/account/acct, see
    613 	   accton(8)) has not been versioned, and will need to be
    614 	   removed.  The automatic rotation of the accounting file by
    615 	   /etc/daily limits the bad consequences of failure to remove
    616 	   the file.
    617 	8. Application software that writes time_t to binary files on
    618 	   disk will break or need attention.  Most notably: if you are
    619 	   using PostgreSQL < 8.4, you need to dump your databases,
    620 	   rebuild PostgreSQL with the new time_t, then restore.
    621 
    622 20081219:
    623 	config(1) has been updated, and one of the files it creates -
    624 	swapnetbsd.o - has changed format.  You need to rebuild config
    625 	(done automatically by build.sh) and then you need to rerun
    626 	config on all kernel configuration files before rebuilding those
    627 	kernels.
    628 
    629 20081205:
    630 	If you build with MKX11=no, you should remove /etc/rc.d/xdm and
    631 	/etc/rc.d/xfs from DESTDIR because those files were moved to the xetc
    632 	set and will appear as extra files for MKX11=no update builds.
    633 
    634 20081122:
    635 	On i386, various kernel options(4) in GENERIC including
    636 	file systems have been disabled and moved into kernel modules.
    637 	Before trying a new GENERIC kernel, you have to prepare the
    638 	following files as well as a new GENERIC kernel:
    639 
    640 	- build and install kernel modules from src/sys/modules
    641 
    642 	- install the latest bootloader, which will load a module
    643 	  for the file system from which the kernel is loaded automatically
    644 
    645 	If you have to load your kernel from a file system which is not of
    646 	the same type as the root file system, you have to load the necessary
    647 	file system module manually on the boot prompt or in the boot.cfg file.
    648 
    649 20080827:
    650 	If you built and installed a libc from sources between
    651 	2008/08/20 and 2008/08/26 you got a broken strtouq(3)
    652 	which results in false errors reported by lint(1).
    653 	Since this breaks the libc build itself, manual help is
    654 	needed -- lint must be disabled temporarily, e.g.:
    655 	  $ (cd lib/libc && make MKLINT=no dependall install)
    656 
    657 20080813:
    658 	MKDEBUG build was broken because the .depend files did not know
    659 	about .go files.  You need to remove all .depend files and rebuild.
    660 
    661 20080802:
    662 	A regression in binary compatibility for pthread_mutex_t has
    663 	been fixed.  Unfortunately, the price is breaking compatibility
    664 	for -current.
    665 
    666 	Threaded programs (using libpthread) and C++ programs (using
    667 	libstdc++) compiled after 20070907 and before 20080802 need to
    668 	be recompiled.
    669 
    670 	One way to find affected pkgsrc packages:
    671 
    672 	  $ grep REQUIRES=/usr/lib/libpthread /var/db/pkg/*/+BUILD_INFO
    673 	  $ grep REQUIRES=/usr/lib/libstdc++ /var/db/pkg/*/+BUILD_INFO
    674 
    675 20080731:
    676 	WAPBL (metadata journaling support) has been added, but at this
    677 	time isn't backwards compatible with pre-WAPBL aware kernels
    678 	and userland (fsck_ffs in particular).  Please make sure you
    679 	don't use a journaled filesystem with an older kernel/userland,
    680 	especially an uncleanly mounted journaled filesystem.  WAPBL
    681 	also requires the super block to be in the UFS2 format.  You
    682 	can use fsck_ffs -c 4 to update the superblock format.
    683 
    684 20080721:
    685 	Assembler warnings are now fatal if $WARNS>0 and $NOGCCERROR
    686 	isn't defined.
    687 
    688 20080531:
    689 	The ioctl number of DRVSUSPENDDEV command on /dev/drvctl changed
    690 	from 125 (conflicted with DRVCTLCOMMAND) to 129.  The drvctl(8)
    691 	utility needs to be rebuilt and reinstalled as older binaries
    692 	won't work correctly.  The following sequence of commands:
    693 
    694 	  $ (cd sys/sys/ && nbmake-$arch includes)
    695 	  $ (cd sbin/drvctl/ && nbmake-$arch clean)
    696 	  $ (cd sbin/drvctl/ && nbmake-$arch all)
    697 
    698 	leaves new drvctl utility in sbin/drvctl build directory.
    699 
    700 20080503:
    701 	The <bsd.lib.mk> variable MKPRIVATELIB was renamed to LIBISPRIVATE.
    702 
    703 20080521:
    704 	For a while, unprivileged UPDATE builds would fail to
    705 	succeed at the checkflist stage, complaining that
    706 	${DESTDIR}/stand/<arch>/ did not exist.  A fix for this
    707 	problem was committed to share/mk/bsd.kmodule.mk, revision 1.9.
    708 	If you already hit this problem, update the .mk file,
    709 	remove ${DESTDIR}/stand/<arch>, and re-run the build.
    710 
    711 20080303:
    712 	Linker warnings are now fatal if $WARNS>0.
    713 
    714 20080126:
    715 	The posix_fadvise system call has been changed from an assembly
    716 	stub, to a c file that calls an assembly stub.  You need to
    717 	'rm -f posix_fadvise.* .depend' in the libc build directory to
    718 	avoid using the old assembly stub.
    719 
    720 20071209:
    721 	The acpiec(4) driver has been split into two attachments.  If you
    722 	get ACPI errors before the attachment, please update your kernel
    723 	configuration file appropriately or see GENERIC for more details.
    724 
    725 20071115:
    726 	The it(4) driver has been renamed to itesio(4) and the old port
    727 	argument specified in the kernel configuration file is not valid
    728 	anymore.  The itesio(4) driver now uses the Super I/O address port
    729 	rather than the EC address port.  Please update your kernel
    730 	configuration file appropriately or see GENERIC for more details.
    731 
    732 20071028:
    733 	The pccons(4) driver has been removed from the NetBSD/shark port.
    734 	You need to update any custom kernel configuration file you have
    735 	to remove any references to pccons (which includes removing the
    736 	now useless XSERVER option) and replace them with the correct
    737 	entries for the wscons driver.  See the GENERIC configuration file
    738 	for more details.
    739 
    740 20070913:
    741 	A latent bug in dhclient/dhcpd that caused it to be unable to
    742 	enumerate interfaces was fixed.  The bug began to cause
    743 	problems after 20070911 when the kernel's SIOCGIFCONF
    744 	implementation was repaired.  From 20070529 to 20070911 racoon
    745 	could not enumerate interfaces.  (These are noted because
    746 	normal kernel/userspace version matching hygiene is not
    747 	sufficient to avoid this problem.)  Ensure that both kernel
    748 	and userland are from after 20070913.
    749 
    750 20070703:
    751 	nbinstall has been renamed ${MACHINE_GNU_ARCH}-install.  It
    752 	calls the target-specific strip program, and the logic to pass
    753 	down STRIP from make has been removed.  This requires a
    754 	re-installation of tools.
    755 
    756 20070422:
    757 	The way OS emulations lookup filenames inside the emulation root
    758 	has been changed.  Rather than modify the pathname (and copy back
    759 	to userspace) namei() and lookup() directly check the emulation
    760 	root.  One side effect is that absolute symlinks inside the emulated
    761 	root file system will be relative to that file system - unless they
    762 	start /../ this is useful when the emulated root is a real install
    763 	that has such links.
    764 	This might affect symlinks that have been added to reference outside
    765 	the emulated root.
    766 
    767 20070412:
    768 	The pckbc driver on sgimips IP32 has been removed.  Use macekbc
    769 	instead.  See the GENERIC32_IP3x kernel configuration for an
    770 	example.
    771 
    772 20070319:
    773         src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so
    774         on many platforms due to incorrect flags settings.  If you
    775         updated and built after about 20070315, do "nbmake-$arch
    776 	cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a
    777 	rebuild of object files that might have been built
    778 	incorrectly, and ensure that you have at least
    779 	src/lib/libc/Makefile 1.130.
    780 
    781 20070210:
    782         src/sys/sys/{sa.h,savar.h} were removed.
    783           find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \
    784               | xargs egrep -l '/sa.h|/savar.h' | xargs rm
    785         will allow dependencies on those files to get get rebuilt
    786 
    787 20070209:
    788         The threading model was changed when the newlock2 branch
    789         was merged to NetBSD-current.  If you boot with a new
    790         kernel (version 4.99.10), then you also need a new pthread
    791         library (/usr/lib/libpthread.so.0.7).  If you boot with
    792         an old kernel, then you need the old pthread library
    793         (/usr/lib/libpthread.so.0.6).  Provided you keep the kernel and
    794         the pthread library in sync, old threaded applications should
    795         continue to work with an old or new kernel.  Note that named(8)
    796 	is the only threaded application in the base system.
    797 
    798 20061214:
    799 	Following the move of string_to_flags() and flags_to_string()
    800 	from the bin/ls/ sources to libutil, users doing UPDATE builds
    801 	will need to do a "make cleandir" in
    802 		tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/,
    803 		bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/,
    804 		usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
    805 		as the installation images in distrib/
    806 	in order to excise stale references to the old stat_flags.h header
    807 	file in the ls sources -- stat_flags.h has been removed.
    808 
    809 20061108:
    810 	The configure script used in the src/tools/gcc compiler has been
    811 	changed to indicate that our libc has ssp support built-in and
    812 	does not depend on -lssp and -lssp-nonshared.  You'll need to
    813 	make clean in src/tools/gcc first to rebuild the compiler.
    814 
    815 20061009:
    816 	The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
    817 	available.  Use net.inet{,6}.tcp{,6}.congctl.selected instead.
    818 
    819 20060814:
    820 	The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been
    821 	withdrawn.  Use vidcvideo and pckbd instead.  See the GENERIC
    822 	kernel configuration for an example.  X servers from the last
    823 	few years should cope.
    824 
    825 20060703:
    826 	MPACPI is no more.  We always configure PCI interrupts using ACPI
    827 	if we have an ACPI kernel.  The option MPACPI_SCANPCI has been renamed
    828 	to ACPI_SCANPCI.  Thanks to work from fvdl.
    829 
    830 20060627:
    831 	socket(2) has changed, and its system call has been versioned.
    832 	For userlands with the old version of socket(2), make sure that
    833 	your kernel has 'options COMPAT_30' set, or else 'bad system call'
    834 	errors will result.
    835 
    836 Hints for a more successful build:
    837 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    838     Use build.sh, but do not use its "expert mode":
    839 	This will automatically build the tools in the
    840 	   correct order, and it will keep the tools and the
    841 	   new build products from interfering with the running
    842 	   system.  This will allow you to ignore most of the
    843 	   other advice in this file.
    844     Build a new kernel first:
    845 	This makes sure that any new system calls or features
    846 	   expected by the new userland will be present.  This
    847 	   helps to avoid critical errors when upgrading.
    848     Use object directories:
    849 	This helps to keep stale object
    850 	   files from polluting the build if a Makefile "forgets"
    851 	   about one.  It also makes it easier to clean up after
    852 	   a build.  It's also necessary if you want to use the
    853 	   same source tree for multiple machines.
    854 	   To use object directories with build.sh:
    855 	    a) invoke build.sh with the "-M" or "-O" options.
    856 	   To use object directories without using build.sh:
    857 	    a) cd /usr/src ; make cleandir
    858 	    b) Add "OBJMACHINE=yes" to /etc/mk.conf
    859 	    c) Add "MKOBJDIRS=yes" to /etc/mk.conf
    860 	    d) cd /usr/src ; make build
    861 	   Note that running "make obj" in a directory will create
    862 	   in obj.$MACHINE directory.
    863     Build to a DESTDIR:
    864 	This helps to keep old installed files (especially libraries)
    865 	   from interfering with the new build.
    866 	   To build to a DESTDIR with build.sh, use the "-D" option.
    867 	   To build to a DESTDIR without using build.sh, set the DESTDIR
    868 	   environment variable before running make build.  It should be
    869 	   set to the pathname of an initially empty directory.
    870 	   Problems: if you do not use build.sh, you might need to
    871 		update critical utilities without using DESTDIR since
    872 		nothing is executed from what is installed in DESTDIR.
    873 		(See critical utils, below.)
    874     Build often:
    875 	This keeps critical utilities current enough to not choke
    876 	on any other part of the source tree that depends on up to
    877 	date functionality.  If you use build.sh, you should not have
    878 	this problem.
    879 
    880 What to do if things don't work:
    881 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    882 When things don't work there are usually a few things that commonly
    883 should be done.
    884     1)	make includes
    885 	This should be done automatically by make build.
    886     2)  cd share/mk && make install
    887 	Again, automatically done by make build.
    888 
    889 Failsafe rebuild of a small part of the tree:
    890 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    891 To make sure you rebuild something correctly you want to do
    892 something like the following:
    893     1)  Make sure the includes and .mk files are up to date.
    894     2)  Make sure any program used to build the particular
    895 	utility is up to date.  (yacc, lex, etc...)
    896     3)  cd ...path/to/util...
    897 	make cleandir
    898 	rm ...all obj directories...
    899 	make cleandir			# yes, again
    900 	make obj
    901 	make depend && make
    902 
    903 Failsafe rebuild of the entire tree:
    904 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    905 If you really want to make sure the source tree is clean and
    906 ready for a build try the following.  Note that sourcing /etc/mk.conf
    907 (a make(1) Makefile) in this manner is not right, and will not work
    908 for anyone who uses any make(1) features in /etc/mk.conf.
    909 
    910 ---cut here---
    911 #!/bin/sh
    912 . /etc/mk.conf
    913 
    914 if [ -z $NETBSDSRCDIR ] ; then
    915     NETBSDSRCDIR=/usr/src
    916 fi
    917 if [ \! -d $NETBSDSRCDIR ] ; then
    918     echo Unable to find sources
    919     exit 1
    920 fi
    921 find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
    922 
    923 if [ -z $BSDOBJDIR ] ; then
    924     BSDOBJDIR=/usr/obj
    925 fi
    926 if [ -d $BSDOBJDIR ] ; then
    927     rm -rf $BSDOBJDIR
    928 fi
    929 
    930 cd $NETBSDSRCDIR && make cleandir
    931 
    932 ---cut here---
    933 
    934 Critical utilities:
    935 ^^^^^^^^^^^^^^^^^^^
    936 	usr.bin/compile_et
    937 	usr.bin/make
    938 	usr.bin/yacc
    939 	usr.bin/lex
    940 	usr.bin/xlint
    941 	usr.bin/config
    942 
    943 Other problems and possible solutions:
    944 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    945 Symptom:Complaints involving a Makefile.
    946 Fix:	Rebuild usr.bin/make:
    947 	cd usr.bin/make && make && make install
    948 	Or, a failsafe method if that doesn't work:
    949 	cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
    950 
    951 Fix:	Make sure .mk files are up to date.
    952 	cd share/mk && make install
    953 
    954 Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
    955 Fix:	Rebuild usr.bin/config
    956 
    957 Symptom:
    958 Fix:	Rebuild usr.bin/yacc
    959 
    960 Symptom:
    961 Fix:	Rebuild usr.bin/lex
    962 
    963 Symptom:
    964 Fix:	rm /usr/lib/libbfd.a
    965 
    966 Symptom:Obsolete intermediate files are used during compilation
    967 Fix:	Try the following sequence of commands in the directory in question.
    968 	make cleandir; rm `make print-objdir`; make cleandir; make obj
    969 	(If you built the tree without "make obj" in the past, obsolete files
    970 	may remain.  The command tries to clean everything up)
    971 
    972 Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible
    973 	pointer type
    974 Fix:	Rebuild and install usr.bin/menuc
    975 
    976 Symptom:mklocale not found during build in share/locale/ctype
    977 Fix:	Build and install usr.bin/mklocale
    978 
    979 Symptom:undefined reference to `__assert13' or `__unsetenv13'
    980 Fix:    Rebuild and install lib/libc
    981 
    982 Symptom:usr.bin/config fails to build.
    983 Fix:	Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
    984 
    985 Symptom:undefined reference to `getprogname' or `setprogname'
    986 Fix:    Rebuild and install lib/libc
    987 
    988 Symptom:lint does not understand the '-X' option
    989 Fix:    May need to build & install libs with NOLINT=1 before rebuilding lint
    990 
    991 Symptom:Update build fails in src/tools/gcc complaining that a variable
    992 	(e.g. CPPFLAGS) has changed since the previous run.
    993 Fix:    Run "nbmake-${ARCH} clean" in src/tools/gcc or do a clean build.
    994 
    995 Symptom:cvs [update aborted]: cannot open directory /cvsroot/src/...:
    996 	No such file or directory.
    997 Cause:	If a directory is created by mistake, then it is sometimes
    998 	deleted from the CVS repository using administrative commands
    999 	that bypass the normal cvs access controls.  If your cvs working tree
   1000 	contains references to a directory that has been deleted on the
   1001 	server in this way, then "cvs update" reports this error.
   1002 Fix:	Recursively delete the affected directory from your working tree
   1003 	and try the update again.
   1004