1$NetBSD: UPDATING,v 1.209 2010/02/22 12:35:32 njoly 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 14See also: BUILDING, build.sh, Makefile. 15 16Recent changes: 17^^^^^^^^^^^^^^^ 18 1920100222: 20 The shared objects file extension has been changed from .so to 21 .pico, in order to avoid conflicts with shared libraries names 22 libXX.so. All now stale regular .so files can be removed from 23 your object directories. 24 2520100204: 26 The termcap database has been removed from the sources, 27 but has not been marked obsolete so it is not removed 28 from the system when upgrading. 29 As such, you will need to remove them from your object 30 and destination directories. 31 3220091101: 33 After updating, it may be necessary to make the 'cleandir' 34 target in src/tools/yacc/ and in src/usr.bin/yacc/ before a 35 'build.sh -u tools' or 'build.sh -u distribution'. Ditto 36 src/tools/lex/ and src/usr.bin/lex/. 37 3820091001: 39 On amd64 you must rebuild tools (to get the new binutils) 40 before building a kernel, or the build fails on cpufunc.S. 41 4220091001: 43 An error will create a ./usr/X11R7/lib/X11/xkb/compiled/xkb 44 symlink, failing the build. Delete the link, and the subdir 45 it is in, and retry your build. 46 4720090718: 48 libc build changed so that strchr() provides the extra entry 49 point for index(). Update build of libc.a (and libc_pic.a) 50 may fail because the archive contains the unwanted index.o. 51 (Similarly for strrchr() and rindex().) 52 5320090709: 54 Native Xorg was upgraded again. Builds will probably fail again 55 without a clean objdir, at least for src/external/mit/xorg. 56 5720090616: 58 Native Xorg was upgraded. Builds will need a clean objdir for 59 src/external/mit/xorg. Upgrading a system from sets will not 60 work properly yet as the /usr/X11R7/lib/X11/xkb/symbols/pc 61 subdirectory has been changed into a file, and this needs to 62 be manually "rm -r"'ed before installing xbase.tgz. 63 6420090501: 65 Several new functions were added to string.h/libc, and this 66 can cause autoconf problems during the tool build for people 67 who fail to clean out their tools objects properly. If you 68 note messages about stpcpy, stpncpy or strnlen accompanying a 69 failure during the tool build, clean out all your tools 70 objects and start again. 71 7220090325: 73 The i386 port was switched to i486 default toolchain. This requires 74 cleaning your src/tools directory and $TOOLDIR and rebuilding them. 75 7620090126: 77 The __posix_fadvise50 system call changed assembly stub type. You 78 need to 'rm -f __posix_fadvise50.*' in the libc build directory 79 to avoid using the old assembly stub. 80 8120090202: 82 pkg_install now depends on the pkgdb cache for automatic conflict 83 detection. It is recommented to rebuild the cache with 84 ``pkg_admin rebuild''. 85 8620090110: 87 time_t and dev_t have been bumped to 64 bit quantities. To upgrade: 88 1. Make sure your kernel has COMPAT_50 in it. Build and install. 89 This is needed even in the MODULAR kernel because there is 90 conditionally compiled code in rtsock.c. 91 2. make sure build.sh completes and the binaries in a chroot work 92 before installing. 93 3. If you don't use build.sh and you build directly to root, and 94 your build breaks in the middle, don't despair. Make sure headers 95 are installed properly, and start building libraries first libc 96 and libutil, install them and then continue building all the 97 libraries in src/lib and src/gnu/lib and install them. Once 98 the new libraries are installed, you can restart the build. 99 4. If you compile packages and you notice link time warnings, 100 rebuild the required packages to update their shared libraries. 101 Any package you rebuild will require rebuilding all the packages 102 that depend on it. 103 5. Next time you run pwd_mkdb with the new binary, the file 104 will be upgraded and it will not be backwards compatible. 105 6. The utmpx/wtmpx files (/var/run/utmpx and /var/log/wtmpx, see 106 lastlogx(5)) have been versioned, and there is a heuristic 107 for utmp. You are better off removing the old files after 108 upgrading. The automated clearing of /var/run during 109 boot, and the automated rotating of files in /var/log by 110 newsyslog(8), may mean that you do not have to remove the 111 files manually. 112 7. The optional accounting file (/var/account/acct, see 113 accton(8)) has not been versioned, and will need to be 114 removed. The automatic rotation of the accounting file by 115 /etc/daily limits the bad consequences of failure to remove 116 the file. 117 8. Application software that writes time_t to binary files on 118 disk will break or need attention. Most notably: if you are 119 using PostgreSQL < 8.4, you need to dump your databases, 120 rebuild PostgreSQL with the new time_t, then restore. 121 12220081219: 123 config(1) has been updated, and one of the files it creates - 124 swapnetbsd.o - has changed format. You need to rebuild config 125 (done automatically by build.sh) and then you need to rerun 126 config on all kernel configuration files before rebuilding those 127 kernels. 128 12920081205: 130 If you build with MKX11=no, you should remove /etc/rc.d/xdm and 131 /etc/rc.d/xfs from DESTDIR because those files were moved to the xetc 132 set and will appear as extra files for MKX11=no update builds. 133 13420081122: 135 On i386, various kernel options(4) in GENERIC including 136 file systems have been disabled and moved into kernel modules. 137 Before trying a new GENERIC kernel, you have to prepare the 138 following files as well as a new GENERIC kernel: 139 140 - build and install kernel modules from src/sys/modules 141 142 - install the latest bootloader, which will load a module 143 for the file system from which the kernel is loaded automatically 144 145 If you have to load your kernel from a file system which is not of 146 the same type as the root file system, you have to load the necessary 147 file system module manually on the boot prompt or in the boot.cfg file. 148 14920080827: 150 If you built and installed a libc from sources between 151 2008/08/20 and 2008/08/26 you got a broken strtouq(3) 152 which results in false errors reported by lint(1). 153 Since this breaks the libc build itself, manual help is 154 needed -- lint must be disabled temporarily, e.g.: 155 $ (cd lib/libc && make MKLINT=no dependall install) 156 15720080813: 158 MKDEBUG build was broken because the .depend files did not know 159 about .go files. You need to remove all .depend files and rebuild. 160 16120080802: 162 A regression in binary compatibility for pthread_mutex_t has 163 been fixed. Unfortunately, the price is breaking compatibility 164 for -current. 165 166 Threaded programs (using libpthread) and C++ programs (using 167 libstdc++) compiled after 20070907 and before 20080802 need to 168 be recompiled. 169 170 One way to find affected pkgsrc packages: 171 172 $ grep REQUIRES=/usr/lib/libpthread /var/db/pkg/*/+BUILD_INFO 173 $ grep REQUIRES=/usr/lib/libstdc++ /var/db/pkg/*/+BUILD_INFO 174 17520080731: 176 WAPBL (metadata journaling support) has been added, but at this 177 time isn't backwards compatible with pre-WAPBL aware kernels 178 and userland (fsck_ffs in particular). Please make sure you 179 don't use a journaled filesystem with an older kernel/userland, 180 especially an uncleanly mounted journaled filesystem. WAPBL 181 also requires the super block to be in the UFS2 format. You 182 can use fsck_ffs -c 4 to update the superblock format. 183 18420080721: 185 Assembler warnings are now fatal if $WARNS>0 and $NOGCCERROR 186 isn't defined. 187 18820080531: 189 The ioctl number of DRVSUSPENDDEV command on /dev/drvctl changed 190 from 125 (conflicted with DRVCTLCOMMAND) to 129. The drvctl(8) 191 utility needs to be rebuilt and reinstalled as older binaries 192 won't work correctly. The following sequence of commands: 193 194 $ (cd sys/sys/ && nbmake-$arch includes) 195 $ (cd sbin/drvctl/ && nbmake-$arch clean) 196 $ (cd sbin/drvctl/ && nbmake-$arch all) 197 198 leaves new drvctl utility in sbin/drvctl build directory. 199 20020080503: 201 The <bsd.lib.mk> variable MKPRIVATELIB was renamed to LIBISPRIVATE. 202 20320080521: 204 For a while, unprivileged UPDATE builds would fail to 205 succeed at the checkflist stage, complaining that 206 ${DESTDIR}/stand/<arch>/ did not exist. A fix for this 207 problem was committed to share/mk/bsd.kmodule.mk, revision 1.9. 208 If you already hit this problem, update the .mk file, 209 remove ${DESTDIR}/stand/<arch>, and re-run the build. 210 21120080303: 212 Linker warnings are now fatal if $WARNS>0. 213 21420080126: 215 The posix_fadvise system call has been changed from an assembly 216 stub, to a c file that calls an assembly stub. You need to 217 'rm -f posix_fadvise.* .depend' in the libc build directory to 218 avoid using the old assembly stub. 219 22020071209: 221 The acpiec(4) driver has been split into two attachments. If you 222 get ACPI errors before the attachment, please update your kernel 223 configuration file appropriately or see GENERIC for more details. 224 22520071115: 226 The it(4) driver has been renamed to itesio(4) and the old port 227 argument specified in the kernel configuration file is not valid 228 anymore. The itesio(4) driver now uses the Super I/O address port 229 rather than the EC address port. Please update your kernel 230 configuration file appropriately or see GENERIC for more details. 231 23220071028: 233 The pccons(4) driver has been removed from the NetBSD/shark port. 234 You need to update any custom kernel configuration file you have 235 to remove any references to pccons (which includes removing the 236 now useless XSERVER option) and replace them with the correct 237 entries for the wscons driver. See the GENERIC configuration file 238 for more details. 239 24020070913: 241 A latent bug in dhclient/dhcpd that caused it to be unable to 242 enumerate interfaces was fixed. The bug began to cause 243 problems after 20070911 when the kernel's SIOCGIFCONF 244 implementation was repaired. From 20070529 to 20070911 racoon 245 could not enumerate interfaces. (These are noted because 246 normal kernel/userspace version matching hygiene is not 247 sufficient to avoid this problem.) Ensure that both kernel 248 and userland are from after 20070913. 249 25020070703: 251 nbinstall has been renamed ${MACHINE_GNU_ARCH}-install. It 252 calls the target-specific strip program, and the logic to pass 253 down STRIP from make has been removed. This requires a 254 re-installation of tools. 255 25620070422: 257 The way OS emulations lookup filenames inside the emulation root 258 has been changed. Rather than modify the pathname (and copy back 259 to userspace) namei() and lookup() directly check the emulation 260 root. One side effect is that absolute symlinks inside the emulated 261 root file system will be relative to that file system - unless they 262 start /../ this is useful when the emulated root is a real install 263 that has such links. 264 This might affect symlinks that have been added to reference outside 265 the emulated root. 266 26720070412: 268 The pckbc driver on sgimips IP32 has been removed. Use macekbc 269 instead. See the GENERIC32_IP3x kernel configuration for an 270 example. 271 27220070319: 273 src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so 274 on many platforms due to incorrect flags settings. If you 275 updated and built after about 20070315, do "nbmake-$arch 276 cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a 277 rebuild of object files that might have been built 278 incorrectly, and ensure that you have at least 279 src/lib/libc/Makefile 1.130. 280 28120070210: 282 src/sys/sys/{sa.h,savar.h} were removed. 283 find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \ 284 | xargs egrep -l '/sa.h|/savar.h' | xargs rm 285 will allow dependencies on those files to get get rebuilt 286 28720070209: 288 The threading model was changed when the newlock2 branch 289 was merged to NetBSD-current. If you boot with a new 290 kernel (version 4.99.10), then you also need a new pthread 291 library (/usr/lib/libpthread.so.0.7). If you boot with 292 an old kernel, then you need the old pthread library 293 (/usr/lib/libpthread.so.0.6). Provided you keep the kernel and 294 the pthread library in sync, old threaded applications should 295 continue to work with an old or new kernel. Note that named(8) 296 is the only threaded application in the base system. 297 29820061214: 299 Following the move of string_to_flags() and flags_to_string() 300 from the bin/ls/ sources to libutil, users doing UPDATE builds 301 will need to do a "make cleandir" in 302 tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/, 303 bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/, 304 usr.bin/xinstall/, libexec/ftpd/, rescue/, as well 305 as the installation images in distrib/ 306 in order to excise stale references to the old stat_flags.h header 307 file in the ls sources -- stat_flags.h has been removed. 308 30920061108: 310 The configure script used in the src/tools/gcc compiler has been 311 changed to indicate that our libc has ssp support built-in and 312 does not depend on -lssp and -lssp-nonshared. You'll need to 313 make clean in src/tools/gcc first to rebuild the compiler. 314 31520061009: 316 The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer 317 available. Use net.inet{,6}.tcp{,6}.congctl.selected instead. 318 31920060814: 320 The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been 321 withdrawn. Use vidcvideo and pckbd instead. See the GENERIC 322 kernel configuration for an example. X servers from the last 323 few years should cope. 324 32520060703: 326 MPACPI is no more. We always configure PCI interrupts using ACPI 327 if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed 328 to ACPI_SCANPCI. Thanks to work from fvdl. 329 33020060627: 331 socket(2) has changed, and its system call has been versioned. 332 For userlands with the old version of socket(2), make sure that 333 your kernel has 'options COMPAT_30' set, or else 'bad system call' 334 errors will result. 335 336Hints for a more successful build: 337^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 338 Use build.sh, but do not use its "expert mode": 339 This will automatically build the tools in the 340 correct order, and it will keep the tools and the 341 new build products from interfering with the running 342 system. This will allow you to ignore most of the 343 other advice in this file. 344 Build a new kernel first: 345 This makes sure that any new system calls or features 346 expected by the new userland will be present. This 347 helps to avoid critical errors when upgrading. 348 Use object directories: 349 This helps to keep stale object 350 files from polluting the build if a Makefile "forgets" 351 about one. It also makes it easier to clean up after 352 a build. It's also necessary if you want to use the 353 same source tree for multiple machines. 354 To use object directories with build.sh: 355 a) invoke build.sh with the "-M" or "-O" options. 356 To use object directories without using build.sh: 357 a) cd /usr/src ; make cleandir 358 b) Add "OBJMACHINE=yes" to /etc/mk.conf 359 c) Add "MKOBJDIRS=yes" to /etc/mk.conf 360 d) cd /usr/src ; make build 361 Note that running "make obj" in a directory will create 362 in obj.$MACHINE directory. 363 Build to a DESTDIR: 364 This helps to keep old installed files (especially libraries) 365 from interfering with the new build. 366 To build to a DESTDIR with build.sh, use the "-D" option. 367 To build to a DESTDIR without using build.sh, set the DESTDIR 368 environment variable before running make build. It should be 369 set to the pathname of an initially empty directory. 370 Problems: if you do not use build.sh, you might need to 371 update critical utilities without using DESTDIR since 372 nothing is executed from what is installed in DESTDIR. 373 (See critical utils, below.) 374 Build often: 375 This keeps critical utilities current enough to not choke 376 on any other part of the source tree that depends on up to 377 date functionality. If you use build.sh, you should not have 378 this problem. 379 380What to do if things don't work: 381^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 382When things don't work there is usually a few things that commonly 383should be done. 384 1) make includes 385 This should be done automatically by make build. 386 2) cd share/mk && make install 387 Again, automatically done by make build. 388 389Failsafe rebuild of a small part of the tree: 390^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 391To make sure you rebuild something correctly you want to do 392something like the following: 393 1) Make sure the includes and .mk files are up to date. 394 2) Make sure any program used to build the particular 395 utility is up to date. (yacc, lex, etc...) 396 3) cd ...path/to/util... 397 make cleandir 398 rm ...all obj directories... 399 make cleandir # yes, again 400 make obj 401 make depend && make 402 403Failsafe rebuild of the entire tree: 404^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 405If you really want to make sure the source tree is clean and 406ready for a build try the following. Note that sourcing /etc/mk.conf 407(a make(1) Makefile) in this manner is not right, and will not work 408for anyone who uses any make(1) features in /etc/mk.conf. 409 410---cut here--- 411#!/bin/sh 412. /etc/mk.conf 413 414if [ -z $NETBSDSRCDIR ] ; then 415 NETBSDSRCDIR=/usr/src 416fi 417if [ \! -d $NETBSDSRCDIR ] ; then 418 echo Unable to find sources 419 exit 1 420fi 421find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \; 422 423if [ -z $BSDOBJDIR ] ; then 424 BSDOBJDIR=/usr/obj 425fi 426if [ -d $BSDOBJDIR ] ; then 427 rm -rf $BSDOBJDIR 428fi 429 430cd $NETBSDSRCDIR && make cleandir 431 432---cut here--- 433 434Critical utilities: 435^^^^^^^^^^^^^^^^^^^ 436 usr.bin/compile_et 437 usr.bin/make 438 usr.bin/yacc 439 usr.bin/lex 440 usr.bin/xlint 441 usr.bin/config 442 443Other problems and possible solutions: 444^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 445Symptom:Complaints involving a Makefile. 446Fix: Rebuild usr.bin/make: 447 cd usr.bin/make && make && make install 448 Or, a failsafe method if that doesn't work: 449 cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin 450 451Fix: Make sure .mk files are up to date. 452 cd share/mk && make install 453 454Symptom:Kernel `config' fails to configure any kernel, including GENERIC. 455Fix: Rebuild usr.bin/config 456 457Symptom: 458Fix: Rebuild usr.bin/yacc 459 460Symptom: 461Fix: Rebuild usr.bin/lex 462 463Symptom: 464Fix: rm /usr/lib/libbfd.a 465 466Symptom:Obsolete intermediate files are used during compilation 467Fix: Try the following sequence of commands in the directory in question. 468 make cleandir; rm `make print-objdir`; make cleandir; make obj 469 (If you built the tree without "make obj" in the past, obsolete files 470 may remain. The command tries to clean everything up) 471 472Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible 473 pointer type 474Fix: Rebuild and install usr.bin/menuc 475 476Symptom:mklocale not found during build in share/locale/ctype 477Fix: Build and install usr.bin/mklocale 478 479Symptom:undefined reference to `__assert13' or `__unsetenv13' 480Fix: Rebuild and install lib/libc 481 482Symptom:usr.bin/config fails to build. 483Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile. 484 485Symptom:undefined reference to `getprogname' or `setprogname' 486Fix: Rebuild and install lib/libc 487 488Symptom:lint does not understand the '-X' option 489Fix: May need to build & install libs with NOLINT=1 before rebuilding lint 490