UPDATING revision 1.275
1$NetBSD: UPDATING,v 1.275 2016/10/14 16:39:05 spz 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 2220161014: 23 a new version of OpenSSL has been imported. 24 Remove the files from obj (crypto/external/bsd/openssl) 25 if you build.sh -u 26 2720161009: 28 a new version of dhcpcd has been imported with slightly changed 29 build infrastructure. When doing a build.sh -u this requires 30 pruning the external/bsd/dhcpcd objdir. 31 3220160914: 33 i386, amd64, shark, ofppc and macppc have joined shark and x68k 34 ports in using xorg-server 1.18. This requires a clean destdir 35 and a clean objdir. 36 3720160527: 38 i386 needs a full cleandir or objdir deletion because PIE has 39 been enabled. (see the amd64 entry two down for further info) 40 4120160418: 42 libedit needs manual removal of all autogenerated files since 43 some of them are not autogenerated anymore. Remember that there 44 might be two copies of libedit if your platform builds "compat". 45 4620160410: 47 amd64 needs full "make cleandir" or deletion of objdir now that 48 PIE has been enabled for amd64. PIE, or position-independent 49 executables, means all code, including executables and not just 50 shared libraries, is position-independent and hence able to be 51 relocated by ASLR, address space layout randomization. 52 53 The change was made in Makefile variables for compiler and 54 linker flags, for which make(1) does not record dependencies, 55 hence it is unable to detect that all .o files need rebuilding. 56 57 Partial rebuilds with some modified source files will likely 58 fail when linking executables, since the linker refuses to mix 59 position-independent code with position-dependent code in 60 position-independent executables: 61 62 .../x86_64--netbsd/bin/ld: foo.o: relocation R_X86_64_32 against `...' cannot be used when making a shared object; recompile with -fPIC 63 6420160401: 65 Ports switching to GCC 5.3 will need a full "make cleandir". 66 Some people have found that cleandir is not sufficient, so if 67 in doubt delete the entire object directory tree for gcc. 68 6920160306: 70 NetBSD's regexp implementation is now part of libnbcompat. 71 Nblex, nbm4, nbpax, nbsed use it and they may crash on 72 non-NetBSD hosts if linked with stale object files produced 73 while they included a non-NetBSD regex.h. 74 In any case, you should "make cleandir" at least these tools 75 before updating your toolchain. 76 7720160125: 78 Dtrace has been enabled by default on some architectures. 79 When doing an update build, make sure to clean the etc/mtree 80 object directory before starting the build - otherwise the 81 needed directories in destdir will not be created. 82 An easy way to do this is: 83 cd src/etc/mtree && $TOOLDIR/bin/nbmake-$arch cleandir 84 8520150818: 86 New acpica requires "make cleandir" in src/external/bsd/acpica 87 again. 88 8920150413: 90 New acpica requires "make cleandir" and reinstalling yacc 91 in /usr/src/external/bsd/byacc and /usr/src/tools/yacc and 92 also "make cleandir" in /usr/src/external/bsd/acpica. 93 9420150404: 95 Lint changes require a full rebuild of the tool, so make 96 sure to build without -u option to build.sh, or manually 97 do a make cleandir in src/tools/lint1 and 98 src/usr.bin/xlint. 99 10020150310: 101 Improvements to openssl for arm mean that update builds of 102 the openssl libraries will fail. A make cleandir in 103 external/bsd/openssl/lib is needed 104 10520141026: 106 A mishap during the import of pppd may cause your corruption 107 in your cvs directory if you happened to do a cvs update 108 during a short period of time. To fix, just remove the 109 directory src/external/bsd/ppp/dist/pppd completely 110 and let cvs restore it on next update. 111 11220140721: 113 The src/external/mit/lua/src directory was accidentally created 114 and then deleted in the CVS repository. If you get errors like 115 116 cvs [update aborted]: cannot open directory 117 /cvsroot/src/external/mit/lua/src: No such file or directory 118 119 then delete your local copy of that directory tree and try again. 120 12120140530: 122 ARM eABI switched to DWARF based exception handling. This requires 123 rebuilding all C++ code. It is strongly advised to do a clean build. 124 12520140131: 126 The new compiler_rt/libc integration moved a few things. It is strongly 127 advised to do a clean build. At least lib/libc, the compat version(s) 128 of libc, libkern, rump and the kernels need to be cleaned. 129 13020131227: 131 1. The new ntpd runs in a restricted mode to prevent amplification 132 attacks. If you need ntpdc to work you need to explicitly enable 133 mode7 in your config file. Make sure you put the necessary restrict 134 statements to avoid being exposed. 135 2. strncat has moved from lib/libc to common/lib/libc; you might need 136 to make clean in libc 137 13820131129: 139 The GMP sources were updated, and builds will likely fail without 140 cleaning their build trees for both tools and in-tree, like below. 141 14220131128: 143 The MPC and MPFR sources were updated, and builds may require their 144 tools and in-tree directories cleaned for successful updates. 145 14620130605: 147 The kernel option FAST_IPSEC no longer exists, it's been renamed 148 to IPSEC (and the older IPSEC version removed). 149 15020130605: 151 Previous freetype installations eroneously installed private 152 header files. If you are building against a non-empty $DESTDIR, 153 please remove ${DESTDIR}//usr/X11R7/include/freetype2/freetype/. 154 15520130531: 156 The xdm update may cause build failure due to xdm.man being 157 in the obj tree. Make sure to ensure any like this: 158 nbmake: nbmake: don't know how to make xdm.man. Stop 159 is fixed by deleting the xdm.man in the obj tree. 160 16120130530: 162 Updates of many xsrc packages will leave old .pc files around. 163 Best to clean out the xsrc objdir entirely before rebuilds. 164 16520130301: 166 The removal of netiso requires manual removal of /usr/include/netiso 167 prior to the build and make cleandir in /usr/src/usr.bin/{ktruss,kdump} 168 16920120726: 170 The update of OpenSSL requires cleaning both the OpenSSL build 171 directory and DESTDIR. *Even non-update builds require cleaning 172 DESTDIR.* Builds done without taking these steps may fail, or in 173 some cases may succeed and install broken OpenSSL libraries that 174 cause third-party software to link incorrectly and/or crash. 175 17620120507: 177 The database schema for makemandb was changed. You will 178 need to update the database using 'makemandb -f' or wait 179 for the next weekly run to fix it. 180 18120120319: 182 sys/conf/Makefile.kern.inc has been modified to adjust the 183 size of db_symtab automatically. You need to update dbsym in 184 your $TOOLDIR to build kernels with options SYMTAB_SPACE. If 185 you don't want this behavior, add AUTO_SYMTAB_SPACE=no to your 186 mk.conf. 187 18820120216: 189 Default for MKCATPAGES changed to NO. Update builds will fail 190 unless DESTDIR is cleaned manually. If you built between 20120207 191 and 20120216, daily and weekly could have created an unreadable 192 /var/db/man.db index for apropos. Running makemandb -f or 193 the next run of weekly will fix it. 194 19520111227: 196 If you built between 20111225 and 20111227 you need to remove 197 /usr/lib/libpam.so.4* and /usr/lib/security/*.so.4, since the 198 bump has been reverted. 199 20020111125: 201 The "rnd" pseudodevice has been added to sys/conf/std, which 202 means it should no longer be explicitly listed in kernel 203 configuration files. The line "pseudo-device rnd" should be 204 removed from any custom kernel config files users may have. 205 20620111119: 207 A problem with the datastructures used by the rndctl(8) 208 utility (pointers in datastructures in an array, making 32->64 209 bit compatibility very painful) has been fixed in a 210 non-backwards-compatible way. If you replace your kernel, 211 replace your rndctl executable too. 212 21320111001: 214 the prop_*_send_syscall() functions from proplib(3) have been 215 changed and their new version is not backward compatible with the old 216 one. So ensure that all consumers of these functions (currently: 217 quota2 code and its tests) are updated together with the new lib. 218 21920110817: 220 sparc has been changed to use GCC 4.5.3, so any objdir or 221 DESTDIR for them should be deleted before updating. 222 22320110806: 224 i386 and amd64 have been changed to use GCC 4.5.3, so any 225 objdir or DESTDIR for them should be deleted before updating. 226 22720110805: 228 The update to GCC 4.5.3 requires a non-trivial portion of 229 the tree to be cleaned. Best to delete both objdir and 230 DESTDIR before running this update. So far, only the 231 sparc64, mips and powerpc platforms have changed. 232 23320110803: 234 The layout of external/public-domain/xz has changed. To do an 235 update build you will have to remove the contents of the OBJDIR 236 for external/public-domain/xz/bin by hand as the xz entry there 237 is now a directory. 238 23920110410: 240 The configuration of src/tools/gcc has changed. To do an 241 update build you have to clean both tools/binutils and 242 tools/gcc by hand. 243 24420110328: 245 Building the Xorg binary was moved into a subdirectory to fix 246 ordering issues with "make all". It may be necessary to remove 247 the OBJDIR for external/mit/xorg/server/xorg-server/hw/xfree86 248 if your update build fails, as the "Xorg" entry there is now a 249 directory. 250 25120110121: 252 Assembler files no longer use -traditional-cpp. This can break 253 the build of individual parts of the tree. This is handled 254 correctly by build.sh. Manual builds have to update /usr/share/mk 255 and re-run config(1) for any kernel configurations as needed. 256 25720101217: 258 The tcpdump(8) program was changed to drop privileges and chroot(2) 259 by default. It may be necessary to manually update passwd(5) and 260 group(5) in order to make the program work with existing setups. 261 26220101125: 263 The latest changes to setenv(3) dissallow setting environment 264 variables with names that contain '='. Revision 1.18 of env.c 265 assumed that this was allowed. Installing a new libc with an 266 old copy of /usr/bin/env causes env x=1 printenv | grep x= to 267 break which affects the autoconf tests for dependency finding, 268 so building gcc will end up printing: 269 checking dependency style of gcc... none 270 configure: error: no usable dependency style found 271 Fix it by rebuilding and re-installing env. 272 27320101119: 274 Recent Xorg updates in xsrc/external/mit/ may cause various build 275 or run-time problems. Delete your entire DESTDIR and OBJDIR if you 276 have any build problems with xsrc, or problems with mismatched 277 versions between xorg-server and drivers. 278 27920100604: 280 The update of ATF to 0.9 causes old tests written in shell to fail 281 unless they are rebuilt. If you are building with MKUPDATE=yes, 282 you need to clean the src/external/bsd/atf/tests/ and the src/tests/ 283 trees by hand. 284 28520100522: 286 Recent Xorg updates in xsrc/external/mit/ will cause various build 287 problems. Delete your entire DESTDIR and OBJDIR if you have any 288 build problems with xsrc. 289 29020100522: 291 private section of <ctype.h> was splitted, and now mklocale(1) 292 include ctype_local.h, so you have to make cleandir in tools/mklocale. 293 29420100520: 295 The location of the xkb compiled descriptions has changed. Please 296 remove usr/X11R7/lib/X11/xkb/compiled from your $DESTDIR. 297 29820100222: 299 The shared objects file extension has been changed from .so to 300 .pico, in order to avoid conflicts with shared libraries names 301 libXX.so. All now stale regular .so files can be removed from 302 your object directories. 303 30420100204: 305 The termcap database has been removed from the sources, 306 but has not been marked obsolete so it is not removed 307 from the system when upgrading. 308 As such, you will need to remove them from your object 309 and destination directories. 310 31120091101: 312 After updating, it may be necessary to make the 'cleandir' 313 target in src/tools/yacc/ and in src/usr.bin/yacc/ before a 314 'build.sh -u tools' or 'build.sh -u distribution'. Ditto 315 src/tools/lex/ and src/usr.bin/lex/. 316 31720091001: 318 On amd64 you must rebuild tools (to get the new binutils) 319 before building a kernel, or the build fails on cpufunc.S. 320 32120091001: 322 An error will create a ./usr/X11R7/lib/X11/xkb/compiled/xkb 323 symlink, failing the build. Delete the link, and the subdir 324 it is in, and retry your build. 325 32620090718: 327 libc build changed so that strchr() provides the extra entry 328 point for index(). Update build of libc.a (and libc_pic.a) 329 may fail because the archive contains the unwanted index.o. 330 (Similarly for strrchr() and rindex().) 331 33220090709: 333 Native Xorg was upgraded again. Builds will probably fail again 334 without a clean objdir, at least for src/external/mit/xorg. 335 33620090616: 337 Native Xorg was upgraded. Builds will need a clean objdir for 338 src/external/mit/xorg. Upgrading a system from sets will not 339 work properly yet as the /usr/X11R7/lib/X11/xkb/symbols/pc 340 subdirectory has been changed into a file, and this needs to 341 be manually "rm -r"'ed before installing xbase.tgz. 342 34320090501: 344 Several new functions were added to string.h/libc, and this 345 can cause autoconf problems during the tool build for people 346 who fail to clean out their tools objects properly. If you 347 note messages about stpcpy, stpncpy or strnlen accompanying a 348 failure during the tool build, clean out all your tools 349 objects and start again. 350 35120090325: 352 The i386 port was switched to i486 default toolchain. This requires 353 cleaning your src/tools directory and $TOOLDIR and rebuilding them. 354 35520090126: 356 The __posix_fadvise50 system call changed assembly stub type. You 357 need to 'rm -f __posix_fadvise50.*' in the libc build directory 358 to avoid using the old assembly stub. 359 36020090202: 361 pkg_install now depends on the pkgdb cache for automatic conflict 362 detection. It is recommented to rebuild the cache with 363 ``pkg_admin rebuild''. 364 36520090110: 366 time_t and dev_t have been bumped to 64 bit quantities. To upgrade: 367 1. Make sure your kernel has COMPAT_50 in it. Build and install. 368 This is needed even in the MODULAR kernel because there is 369 conditionally compiled code in rtsock.c. 370 2. make sure build.sh completes and the binaries in a chroot work 371 before installing. 372 3. If you don't use build.sh and you build directly to root, and 373 your build breaks in the middle, don't despair. Make sure headers 374 are installed properly, and start building libraries first libc 375 and libutil, install them and then continue building all the 376 libraries in src/lib and src/gnu/lib and install them. Once 377 the new libraries are installed, you can restart the build. 378 4. If you compile packages and you notice link time warnings, 379 rebuild the required packages to update their shared libraries. 380 Any package you rebuild will require rebuilding all the packages 381 that depend on it. 382 5. Next time you run pwd_mkdb with the new binary, the file 383 will be upgraded and it will not be backwards compatible. 384 6. The utmpx/wtmpx files (/var/run/utmpx and /var/log/wtmpx, see 385 lastlogx(5)) have been versioned, and there is a heuristic 386 for utmp. You are better off removing the old files after 387 upgrading. The automated clearing of /var/run during 388 boot, and the automated rotating of files in /var/log by 389 newsyslog(8), may mean that you do not have to remove the 390 files manually. 391 7. The optional accounting file (/var/account/acct, see 392 accton(8)) has not been versioned, and will need to be 393 removed. The automatic rotation of the accounting file by 394 /etc/daily limits the bad consequences of failure to remove 395 the file. 396 8. Application software that writes time_t to binary files on 397 disk will break or need attention. Most notably: if you are 398 using PostgreSQL < 8.4, you need to dump your databases, 399 rebuild PostgreSQL with the new time_t, then restore. 400 40120081219: 402 config(1) has been updated, and one of the files it creates - 403 swapnetbsd.o - has changed format. You need to rebuild config 404 (done automatically by build.sh) and then you need to rerun 405 config on all kernel configuration files before rebuilding those 406 kernels. 407 40820081205: 409 If you build with MKX11=no, you should remove /etc/rc.d/xdm and 410 /etc/rc.d/xfs from DESTDIR because those files were moved to the xetc 411 set and will appear as extra files for MKX11=no update builds. 412 41320081122: 414 On i386, various kernel options(4) in GENERIC including 415 file systems have been disabled and moved into kernel modules. 416 Before trying a new GENERIC kernel, you have to prepare the 417 following files as well as a new GENERIC kernel: 418 419 - build and install kernel modules from src/sys/modules 420 421 - install the latest bootloader, which will load a module 422 for the file system from which the kernel is loaded automatically 423 424 If you have to load your kernel from a file system which is not of 425 the same type as the root file system, you have to load the necessary 426 file system module manually on the boot prompt or in the boot.cfg file. 427 42820080827: 429 If you built and installed a libc from sources between 430 2008/08/20 and 2008/08/26 you got a broken strtouq(3) 431 which results in false errors reported by lint(1). 432 Since this breaks the libc build itself, manual help is 433 needed -- lint must be disabled temporarily, e.g.: 434 $ (cd lib/libc && make MKLINT=no dependall install) 435 43620080813: 437 MKDEBUG build was broken because the .depend files did not know 438 about .go files. You need to remove all .depend files and rebuild. 439 44020080802: 441 A regression in binary compatibility for pthread_mutex_t has 442 been fixed. Unfortunately, the price is breaking compatibility 443 for -current. 444 445 Threaded programs (using libpthread) and C++ programs (using 446 libstdc++) compiled after 20070907 and before 20080802 need to 447 be recompiled. 448 449 One way to find affected pkgsrc packages: 450 451 $ grep REQUIRES=/usr/lib/libpthread /var/db/pkg/*/+BUILD_INFO 452 $ grep REQUIRES=/usr/lib/libstdc++ /var/db/pkg/*/+BUILD_INFO 453 45420080731: 455 WAPBL (metadata journaling support) has been added, but at this 456 time isn't backwards compatible with pre-WAPBL aware kernels 457 and userland (fsck_ffs in particular). Please make sure you 458 don't use a journaled filesystem with an older kernel/userland, 459 especially an uncleanly mounted journaled filesystem. WAPBL 460 also requires the super block to be in the UFS2 format. You 461 can use fsck_ffs -c 4 to update the superblock format. 462 46320080721: 464 Assembler warnings are now fatal if $WARNS>0 and $NOGCCERROR 465 isn't defined. 466 46720080531: 468 The ioctl number of DRVSUSPENDDEV command on /dev/drvctl changed 469 from 125 (conflicted with DRVCTLCOMMAND) to 129. The drvctl(8) 470 utility needs to be rebuilt and reinstalled as older binaries 471 won't work correctly. The following sequence of commands: 472 473 $ (cd sys/sys/ && nbmake-$arch includes) 474 $ (cd sbin/drvctl/ && nbmake-$arch clean) 475 $ (cd sbin/drvctl/ && nbmake-$arch all) 476 477 leaves new drvctl utility in sbin/drvctl build directory. 478 47920080503: 480 The <bsd.lib.mk> variable MKPRIVATELIB was renamed to LIBISPRIVATE. 481 48220080521: 483 For a while, unprivileged UPDATE builds would fail to 484 succeed at the checkflist stage, complaining that 485 ${DESTDIR}/stand/<arch>/ did not exist. A fix for this 486 problem was committed to share/mk/bsd.kmodule.mk, revision 1.9. 487 If you already hit this problem, update the .mk file, 488 remove ${DESTDIR}/stand/<arch>, and re-run the build. 489 49020080303: 491 Linker warnings are now fatal if $WARNS>0. 492 49320080126: 494 The posix_fadvise system call has been changed from an assembly 495 stub, to a c file that calls an assembly stub. You need to 496 'rm -f posix_fadvise.* .depend' in the libc build directory to 497 avoid using the old assembly stub. 498 49920071209: 500 The acpiec(4) driver has been split into two attachments. If you 501 get ACPI errors before the attachment, please update your kernel 502 configuration file appropriately or see GENERIC for more details. 503 50420071115: 505 The it(4) driver has been renamed to itesio(4) and the old port 506 argument specified in the kernel configuration file is not valid 507 anymore. The itesio(4) driver now uses the Super I/O address port 508 rather than the EC address port. Please update your kernel 509 configuration file appropriately or see GENERIC for more details. 510 51120071028: 512 The pccons(4) driver has been removed from the NetBSD/shark port. 513 You need to update any custom kernel configuration file you have 514 to remove any references to pccons (which includes removing the 515 now useless XSERVER option) and replace them with the correct 516 entries for the wscons driver. See the GENERIC configuration file 517 for more details. 518 51920070913: 520 A latent bug in dhclient/dhcpd that caused it to be unable to 521 enumerate interfaces was fixed. The bug began to cause 522 problems after 20070911 when the kernel's SIOCGIFCONF 523 implementation was repaired. From 20070529 to 20070911 racoon 524 could not enumerate interfaces. (These are noted because 525 normal kernel/userspace version matching hygiene is not 526 sufficient to avoid this problem.) Ensure that both kernel 527 and userland are from after 20070913. 528 52920070703: 530 nbinstall has been renamed ${MACHINE_GNU_ARCH}-install. It 531 calls the target-specific strip program, and the logic to pass 532 down STRIP from make has been removed. This requires a 533 re-installation of tools. 534 53520070422: 536 The way OS emulations lookup filenames inside the emulation root 537 has been changed. Rather than modify the pathname (and copy back 538 to userspace) namei() and lookup() directly check the emulation 539 root. One side effect is that absolute symlinks inside the emulated 540 root file system will be relative to that file system - unless they 541 start /../ this is useful when the emulated root is a real install 542 that has such links. 543 This might affect symlinks that have been added to reference outside 544 the emulated root. 545 54620070412: 547 The pckbc driver on sgimips IP32 has been removed. Use macekbc 548 instead. See the GENERIC32_IP3x kernel configuration for an 549 example. 550 55120070319: 552 src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so 553 on many platforms due to incorrect flags settings. If you 554 updated and built after about 20070315, do "nbmake-$arch 555 cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a 556 rebuild of object files that might have been built 557 incorrectly, and ensure that you have at least 558 src/lib/libc/Makefile 1.130. 559 56020070210: 561 src/sys/sys/{sa.h,savar.h} were removed. 562 find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \ 563 | xargs egrep -l '/sa.h|/savar.h' | xargs rm 564 will allow dependencies on those files to get get rebuilt 565 56620070209: 567 The threading model was changed when the newlock2 branch 568 was merged to NetBSD-current. If you boot with a new 569 kernel (version 4.99.10), then you also need a new pthread 570 library (/usr/lib/libpthread.so.0.7). If you boot with 571 an old kernel, then you need the old pthread library 572 (/usr/lib/libpthread.so.0.6). Provided you keep the kernel and 573 the pthread library in sync, old threaded applications should 574 continue to work with an old or new kernel. Note that named(8) 575 is the only threaded application in the base system. 576 57720061214: 578 Following the move of string_to_flags() and flags_to_string() 579 from the bin/ls/ sources to libutil, users doing UPDATE builds 580 will need to do a "make cleandir" in 581 tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/, 582 bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/, 583 usr.bin/xinstall/, libexec/ftpd/, rescue/, as well 584 as the installation images in distrib/ 585 in order to excise stale references to the old stat_flags.h header 586 file in the ls sources -- stat_flags.h has been removed. 587 58820061108: 589 The configure script used in the src/tools/gcc compiler has been 590 changed to indicate that our libc has ssp support built-in and 591 does not depend on -lssp and -lssp-nonshared. You'll need to 592 make clean in src/tools/gcc first to rebuild the compiler. 593 59420061009: 595 The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer 596 available. Use net.inet{,6}.tcp{,6}.congctl.selected instead. 597 59820060814: 599 The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been 600 withdrawn. Use vidcvideo and pckbd instead. See the GENERIC 601 kernel configuration for an example. X servers from the last 602 few years should cope. 603 60420060703: 605 MPACPI is no more. We always configure PCI interrupts using ACPI 606 if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed 607 to ACPI_SCANPCI. Thanks to work from fvdl. 608 60920060627: 610 socket(2) has changed, and its system call has been versioned. 611 For userlands with the old version of socket(2), make sure that 612 your kernel has 'options COMPAT_30' set, or else 'bad system call' 613 errors will result. 614 615Hints for a more successful build: 616^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 617 Use build.sh, but do not use its "expert mode": 618 This will automatically build the tools in the 619 correct order, and it will keep the tools and the 620 new build products from interfering with the running 621 system. This will allow you to ignore most of the 622 other advice in this file. 623 Build a new kernel first: 624 This makes sure that any new system calls or features 625 expected by the new userland will be present. This 626 helps to avoid critical errors when upgrading. 627 Use object directories: 628 This helps to keep stale object 629 files from polluting the build if a Makefile "forgets" 630 about one. It also makes it easier to clean up after 631 a build. It's also necessary if you want to use the 632 same source tree for multiple machines. 633 To use object directories with build.sh: 634 a) invoke build.sh with the "-M" or "-O" options. 635 To use object directories without using build.sh: 636 a) cd /usr/src ; make cleandir 637 b) Add "OBJMACHINE=yes" to /etc/mk.conf 638 c) Add "MKOBJDIRS=yes" to /etc/mk.conf 639 d) cd /usr/src ; make build 640 Note that running "make obj" in a directory will create 641 in obj.$MACHINE directory. 642 Build to a DESTDIR: 643 This helps to keep old installed files (especially libraries) 644 from interfering with the new build. 645 To build to a DESTDIR with build.sh, use the "-D" option. 646 To build to a DESTDIR without using build.sh, set the DESTDIR 647 environment variable before running make build. It should be 648 set to the pathname of an initially empty directory. 649 Problems: if you do not use build.sh, you might need to 650 update critical utilities without using DESTDIR since 651 nothing is executed from what is installed in DESTDIR. 652 (See critical utils, below.) 653 Build often: 654 This keeps critical utilities current enough to not choke 655 on any other part of the source tree that depends on up to 656 date functionality. If you use build.sh, you should not have 657 this problem. 658 659What to do if things don't work: 660^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 661When things don't work there are usually a few things that commonly 662should be done. 663 1) make includes 664 This should be done automatically by make build. 665 2) cd share/mk && make install 666 Again, automatically done by make build. 667 668Failsafe rebuild of a small part of the tree: 669^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 670To make sure you rebuild something correctly you want to do 671something like the following: 672 1) Make sure the includes and .mk files are up to date. 673 2) Make sure any program used to build the particular 674 utility is up to date. (yacc, lex, etc...) 675 3) cd ...path/to/util... 676 make cleandir 677 rm ...all obj directories... 678 make cleandir # yes, again 679 make obj 680 make depend && make 681 682Failsafe rebuild of the entire tree: 683^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 684If you really want to make sure the source tree is clean and 685ready for a build try the following. Note that sourcing /etc/mk.conf 686(a make(1) Makefile) in this manner is not right, and will not work 687for anyone who uses any make(1) features in /etc/mk.conf. 688 689---cut here--- 690#!/bin/sh 691. /etc/mk.conf 692 693if [ -z $NETBSDSRCDIR ] ; then 694 NETBSDSRCDIR=/usr/src 695fi 696if [ \! -d $NETBSDSRCDIR ] ; then 697 echo Unable to find sources 698 exit 1 699fi 700find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \; 701 702if [ -z $BSDOBJDIR ] ; then 703 BSDOBJDIR=/usr/obj 704fi 705if [ -d $BSDOBJDIR ] ; then 706 rm -rf $BSDOBJDIR 707fi 708 709cd $NETBSDSRCDIR && make cleandir 710 711---cut here--- 712 713Critical utilities: 714^^^^^^^^^^^^^^^^^^^ 715 usr.bin/compile_et 716 usr.bin/make 717 usr.bin/yacc 718 usr.bin/lex 719 usr.bin/xlint 720 usr.bin/config 721 722Other problems and possible solutions: 723^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 724Symptom:Complaints involving a Makefile. 725Fix: Rebuild usr.bin/make: 726 cd usr.bin/make && make && make install 727 Or, a failsafe method if that doesn't work: 728 cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin 729 730Fix: Make sure .mk files are up to date. 731 cd share/mk && make install 732 733Symptom:Kernel `config' fails to configure any kernel, including GENERIC. 734Fix: Rebuild usr.bin/config 735 736Symptom: 737Fix: Rebuild usr.bin/yacc 738 739Symptom: 740Fix: Rebuild usr.bin/lex 741 742Symptom: 743Fix: rm /usr/lib/libbfd.a 744 745Symptom:Obsolete intermediate files are used during compilation 746Fix: Try the following sequence of commands in the directory in question. 747 make cleandir; rm `make print-objdir`; make cleandir; make obj 748 (If you built the tree without "make obj" in the past, obsolete files 749 may remain. The command tries to clean everything up) 750 751Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible 752 pointer type 753Fix: Rebuild and install usr.bin/menuc 754 755Symptom:mklocale not found during build in share/locale/ctype 756Fix: Build and install usr.bin/mklocale 757 758Symptom:undefined reference to `__assert13' or `__unsetenv13' 759Fix: Rebuild and install lib/libc 760 761Symptom:usr.bin/config fails to build. 762Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile. 763 764Symptom:undefined reference to `getprogname' or `setprogname' 765Fix: Rebuild and install lib/libc 766 767Symptom:lint does not understand the '-X' option 768Fix: May need to build & install libs with NOLINT=1 before rebuilding lint 769 770Symptom:Update build fails in src/tools/gcc complaining that a variable 771 (e.g. CPPFLAGS) has changed since the previous run. 772Fix: Run "nbmake-${ARCH} clean" in src/tools/gcc or do a clean build. 773 774Symptom:cvs [update aborted]: cannot open directory /cvsroot/src/...: 775 No such file or directory. 776Cause: If a directory is created by mistake, then it is sometimes 777 deleted from the CVS repository using administrative commands 778 that bypass the normal cvs access controls. If your cvs working tree 779 contains references to a directory that has been deleted on the 780 server in this way, then "cvs update" reports this error. 781Fix: Recursively delete the affected directory from your working tree 782 and try the update again. 783