Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. =================================================================== RCS file: /ftp/cvs/cvsroot/src/UPDATING,v rcsdiff: /ftp/cvs/cvsroot/src/UPDATING,v: warning: Unknown phrases like `commitid ...;' are present. retrieving revision 1.219 retrieving revision 1.269 diff -u -p -r1.219 -r1.269 --- src/UPDATING 2011/01/17 18:11:09 1.219 +++ src/UPDATING 2016/04/16 19:47:45 1.269 @@ -1,4 +1,4 @@ -$NetBSD: UPDATING,v 1.219 2011/01/17 18:11:09 joerg Exp $ +$NetBSD: UPDATING,v 1.269 2016/04/16 19:47:45 dholland Exp $ This file (UPDATING) is intended to be a brief reference to recent changes that might cause problems in the build process, and a guide for @@ -11,31 +11,235 @@ Note that much of the advice in this UPD build.sh existed. Nevertheless, the advice here may be useful for working around specific problems with build.sh. +Sections are marked with "^^^^^". After the section on "Recent changes" +are several sections containing more general information. + See also: BUILDING, build.sh, Makefile. Recent changes: ^^^^^^^^^^^^^^^ -20110117: - Assembler files on the following platforms no longer use -tradition-cpp: - - Alpha, - - AMD64, - - i386, - - SPARC, - - SPARC64. - This can break the build of individual parts of the tree. This is - handled correctly by build.sh. Manual builds have to update - /usr/share/mk and re-run config(1) for any kernel configurations as - needed. + +20160410: + + amd64 needs full "make cleandir" or deletion of objdir now that + PIE has been enabled for amd64. PIE, or position-independent + executables, means all code, including executables and not just + shared libraries, is position-independent and hence able to be + relocated by ASLR, address space layout randomization. + + The change was made in Makefile variables for compiler and + linker flags, for which make(1) does not record dependencies, + hence it is unable to detect that all .o files need rebuilding. + + Partial rebuilds with some modified source files will likely + fail when linking executables, since the linker refuses to mix + position-independent code with position-dependent code in + position-independent executables: + + .../x86_64--netbsd/bin/ld: foo.o: relocation R_X86_64_32 against `...' cannot be used when making a shared object; recompile with -fPIC + +20160401: + Ports switching to GCC 5.3 will need a full "make cleandir". + Some people have found that cleandir is not sufficient, so if + in doubt delete the entire object directory tree for gcc. + +20160306: + NetBSD's regexp implementation is now part of libnbcompat. + Nblex, nbm4, nbpax, nbsed use it and they may crash on + non-NetBSD hosts if linked with stale object files produced + while they included a non-NetBSD regex.h. + In any case, you should "make cleandir" at least these tools + before updating your toolchain. + +20160125: + Dtrace has been enabled by default on some architectures. + When doing an update build, make sure to clean the etc/mtree + object directory before starting the build - otherwise the + needed directories in destdir will not be created. + An easy way to do this is: + cd src/etc/mtree && $TOOLDIR/bin/nbmake-$arch cleandir + +20150818: + New acpica requires "make cleandir" in src/external/bsd/acpica + again. + +20150413: + New acpica requires "make cleandir" and reinstalling yacc + in /usr/src/external/bsd/byacc and /usr/src/tools/yacc and + also "make cleandir" in /usr/src/external/bsd/acpica. + +20150404: + Lint changes require a full rebuild of the tool, so make + sure to build without -u option to build.sh, or manually + do a make cleandir in src/tools/lint1 and + src/usr.bin/xlint. + +20150310: + Improvements to openssl for arm mean that update builds of + the openssl libraries will fail. A make cleandir in + external/bsd/openssl/lib is needed + +20141026: + A mishap during the import of pppd may cause your corruption + in your cvs directory if you happened to do a cvs update + during a short period of time. To fix, just remove the + directory src/external/bsd/ppp/dist/pppd completely + and let cvs restore it on next update. + +20140721: + The src/external/mit/lua/src directory was accidentally created + and then deleted in the CVS repository. If you get errors like + + cvs [update aborted]: cannot open directory + /cvsroot/src/external/mit/lua/src: No such file or directory + + then delete your local copy of that directory tree and try again. + +20140530: + ARM eABI switched to DWARF based exception handling. This requires + rebuilding all C++ code. It is strongly advised to do a clean build. + +20140131: + The new compiler_rt/libc integration moved a few things. It is strongly + advised to do a clean build. At least lib/libc, the compat version(s) + of libc, libkern, rump and the kernels need to be cleaned. + +20131227: + 1. The new ntpd runs in a restricted mode to prevent amplification + attacks. If you need ntpdc to work you need to explicitly enable + mode7 in your config file. Make sure you put the necessary restrict + statements to avoid being exposed. + 2. strncat has moved from lib/libc to common/lib/libc; you might need + to make clean in libc + +20131129: + The GMP sources were updated, and builds will likely fail without + cleaning their build trees for both tools and in-tree, like below. + +20131128: + The MPC and MPFR sources were updated, and builds may require their + tools and in-tree directories cleaned for successful updates. + +20130605: + The kernel option FAST_IPSEC no longer exists, it's been renamed + to IPSEC (and the older IPSEC version removed). + +20130605: + Previous freetype installations eroneously installed private + header files. If you are building against a non-empty $DESTDIR, + please remove ${DESTDIR}//usr/X11R7/include/freetype2/freetype/. + +20130531: + The xdm update may cause build failure due to xdm.man being + in the obj tree. Make sure to ensure any like this: + nbmake: nbmake: don't know how to make xdm.man. Stop + is fixed by deleting the xdm.man in the obj tree. + +20130530: + Updates of many xsrc packages will leave old .pc files around. + Best to clean out the xsrc objdir entirely before rebuilds. + +20130301: + The removal of netiso requires manual removal of /usr/include/netiso + prior to the build and make cleandir in /usr/src/usr.bin/{ktruss,kdump} + +20120726: + The update of OpenSSL requires cleaning both the OpenSSL build + directory and DESTDIR. *Even non-update builds require cleaning + DESTDIR.* Builds done without taking these steps may fail, or in + some cases may succeed and install broken OpenSSL libraries that + cause third-party software to link incorrectly and/or crash. + +20120507: + The database schema for makemandb was changed. You will + need to update the database using 'makemandb -f' or wait + for the next weekly run to fix it. + +20120319: + sys/conf/Makefile.kern.inc has been modified to adjust the + size of db_symtab automatically. You need to update dbsym in + your $TOOLDIR to build kernels with options SYMTAB_SPACE. If + you don't want this behavior, add AUTO_SYMTAB_SPACE=no to your + mk.conf. + +20120216: + Default for MKCATPAGES changed to NO. Update builds will fail + unless DESTDIR is cleaned manually. If you built between 20120207 + and 20120216, daily and weekly could have created an unreadable + /var/db/man.db index for apropos. Running makemandb -f or + the next run of weekly will fix it. + +20111227: + If you built between 20111225 and 20111227 you need to remove + /usr/lib/libpam.so.4* and /usr/lib/security/*.so.4, since the + bump has been reverted. + +20111125: + The "rnd" pseudodevice has been added to sys/conf/std, which + means it should no longer be explicitly listed in kernel + configuration files. The line "pseudo-device rnd" should be + removed from any custom kernel config files users may have. + +20111119: + A problem with the datastructures used by the rndctl(8) + utility (pointers in datastructures in an array, making 32->64 + bit compatibility very painful) has been fixed in a + non-backwards-compatible way. If you replace your kernel, + replace your rndctl executable too. + +20111001: + the prop_*_send_syscall() functions from proplib(3) have been + changed and their new version is not backward compatible with the old + one. So ensure that all consumers of these functions (currently: + quota2 code and its tests) are updated together with the new lib. + +20110817: + sparc has been changed to use GCC 4.5.3, so any objdir or + DESTDIR for them should be deleted before updating. + +20110806: + i386 and amd64 have been changed to use GCC 4.5.3, so any + objdir or DESTDIR for them should be deleted before updating. + +20110805: + The update to GCC 4.5.3 requires a non-trivial portion of + the tree to be cleaned. Best to delete both objdir and + DESTDIR before running this update. So far, only the + sparc64, mips and powerpc platforms have changed. + +20110803: + The layout of external/public-domain/xz has changed. To do an + update build you will have to remove the contents of the OBJDIR + for external/public-domain/xz/bin by hand as the xz entry there + is now a directory. + +20110410: + The configuration of src/tools/gcc has changed. To do an + update build you have to clean both tools/binutils and + tools/gcc by hand. + +20110328: + Building the Xorg binary was moved into a subdirectory to fix + ordering issues with "make all". It may be necessary to remove + the OBJDIR for external/mit/xorg/server/xorg-server/hw/xfree86 + if your update build fails, as the "Xorg" entry there is now a + directory. + +20110121: + Assembler files no longer use -traditional-cpp. This can break + the build of individual parts of the tree. This is handled + correctly by build.sh. Manual builds have to update /usr/share/mk + and re-run config(1) for any kernel configurations as needed. 20101217: The tcpdump(8) program was changed to drop privileges and chroot(2) - by default. It may be necessary to manually update passwd(5) and + by default. It may be necessary to manually update passwd(5) and group(5) in order to make the program work with existing setups. 20101125: The latest changes to setenv(3) dissallow setting environment - variables with names that contain '='. Revision 1.18 of env.c - assumed that this was allowed. Installing a new libc with an + variables with names that contain '='. Revision 1.18 of env.c + assumed that this was allowed. Installing a new libc with an old copy of /usr/bin/env causes env x=1 printenv | grep x= to break which affects the autoconf tests for dependency finding, so building gcc will end up printing: @@ -65,7 +269,7 @@ Recent changes: include ctype_local.h, so you have to make cleandir in tools/mklocale. 20100520: - The location of the xkb compiled descriptions has changed. Please + The location of the xkb compiled descriptions has changed. Please remove usr/X11R7/lib/X11/xkb/compiled from your $DESTDIR. 20100222: @@ -98,7 +302,7 @@ Recent changes: 20090718: libc build changed so that strchr() provides the extra entry - point for index(). Update build of libc.a (and libc_pic.a) + point for index(). Update build of libc.a (and libc_pic.a) may fail because the archive contains the unwanted index.o. (Similarly for strrchr() and rindex().) @@ -116,7 +320,7 @@ Recent changes: 20090501: Several new functions were added to string.h/libc, and this can cause autoconf problems during the tool build for people - who fail to clean out their tools objects properly. If you + who fail to clean out their tools objects properly. If you note messages about stpcpy, stpncpy or strnlen accompanying a failure during the tool build, clean out all your tools objects and start again. @@ -126,7 +330,7 @@ Recent changes: cleaning your src/tools directory and $TOOLDIR and rebuilding them. 20090126: - The __posix_fadvise50 system call changed assembly stub type. You + The __posix_fadvise50 system call changed assembly stub type. You need to 'rm -f __posix_fadvise50.*' in the libc build directory to avoid using the old assembly stub. @@ -136,17 +340,17 @@ Recent changes: ``pkg_admin rebuild''. 20090110: - time_t and dev_t have been bumped to 64 bit quantities. To upgrade: - 1. Make sure your kernel has COMPAT_50 in it. Build and install. + time_t and dev_t have been bumped to 64 bit quantities. To upgrade: + 1. Make sure your kernel has COMPAT_50 in it. Build and install. This is needed even in the MODULAR kernel because there is conditionally compiled code in rtsock.c. 2. make sure build.sh completes and the binaries in a chroot work before installing. 3. If you don't use build.sh and you build directly to root, and - your build breaks in the middle, don't despair. Make sure headers + your build breaks in the middle, don't despair. Make sure headers are installed properly, and start building libraries first libc and libutil, install them and then continue building all the - libraries in src/lib and src/gnu/lib and install them. Once + libraries in src/lib and src/gnu/lib and install them. Once the new libraries are installed, you can restart the build. 4. If you compile packages and you notice link time warnings, rebuild the required packages to update their shared libraries. @@ -156,7 +360,7 @@ Recent changes: will be upgraded and it will not be backwards compatible. 6. The utmpx/wtmpx files (/var/run/utmpx and /var/log/wtmpx, see lastlogx(5)) have been versioned, and there is a heuristic - for utmp. You are better off removing the old files after + for utmp. You are better off removing the old files after upgrading. The automated clearing of /var/run during boot, and the automated rotating of files in /var/log by newsyslog(8), may mean that you do not have to remove the @@ -167,7 +371,7 @@ Recent changes: /etc/daily limits the bad consequences of failure to remove the file. 8. Application software that writes time_t to binary files on - disk will break or need attention. Most notably: if you are + disk will break or need attention. Most notably: if you are using PostgreSQL < 8.4, you need to dump your databases, rebuild PostgreSQL with the new time_t, then restore. @@ -208,11 +412,11 @@ Recent changes: 20080813: MKDEBUG build was broken because the .depend files did not know - about .go files. You need to remove all .depend files and rebuild. + about .go files. You need to remove all .depend files and rebuild. 20080802: A regression in binary compatibility for pthread_mutex_t has - been fixed. Unfortunately, the price is breaking compatibility + been fixed. Unfortunately, the price is breaking compatibility for -current. Threaded programs (using libpthread) and C++ programs (using @@ -238,10 +442,10 @@ Recent changes: isn't defined. 20080531: - The ioctl number of DRVSUSPENDDEV command on /dev/drvctl changed - from 125 (conflicted with DRVCTLCOMMAND) to 129. The drvctl(8) + The ioctl number of DRVSUSPENDDEV command on /dev/drvctl changed + from 125 (conflicted with DRVCTLCOMMAND) to 129. The drvctl(8) utility needs to be rebuilt and reinstalled as older binaries - won't work correctly. The following sequence of commands: + won't work correctly. The following sequence of commands: $ (cd sys/sys/ && nbmake-$arch includes) $ (cd sbin/drvctl/ && nbmake-$arch clean) @@ -265,20 +469,20 @@ Recent changes: 20080126: The posix_fadvise system call has been changed from an assembly - stub, to a c file that calls an assembly stub. You need to + stub, to a c file that calls an assembly stub. You need to 'rm -f posix_fadvise.* .depend' in the libc build directory to avoid using the old assembly stub. 20071209: - The acpiec(4) driver has been split into two attachments. If you + The acpiec(4) driver has been split into two attachments. If you get ACPI errors before the attachment, please update your kernel configuration file appropriately or see GENERIC for more details. 20071115: The it(4) driver has been renamed to itesio(4) and the old port argument specified in the kernel configuration file is not valid - anymore. The itesio(4) driver now uses the Super I/O address port - rather than the EC address port. Please update your kernel + anymore. The itesio(4) driver now uses the Super I/O address port + rather than the EC address port. Please update your kernel configuration file appropriately or see GENERIC for more details. 20071028: @@ -300,7 +504,7 @@ Recent changes: and userland are from after 20070913. 20070703: - nbinstall has been renamed ${MACHINE_GNU_ARCH}-install. It + nbinstall has been renamed ${MACHINE_GNU_ARCH}-install. It calls the target-specific strip program, and the logic to pass down STRIP from make has been removed. This requires a re-installation of tools. @@ -309,7 +513,7 @@ Recent changes: The way OS emulations lookup filenames inside the emulation root has been changed. Rather than modify the pathname (and copy back to userspace) namei() and lookup() directly check the emulation - root. One side effect is that absolute symlinks inside the emulated + root. One side effect is that absolute symlinks inside the emulated root file system will be relative to that file system - unless they start /../ this is useful when the emulated root is a real install that has such links. @@ -317,8 +521,8 @@ Recent changes: the emulated root. 20070412: - The pckbc driver on sgimips IP32 has been removed. Use macekbc - instead. See the GENERIC32_IP3x kernel configuration for an + The pckbc driver on sgimips IP32 has been removed. Use macekbc + instead. See the GENERIC32_IP3x kernel configuration for an example. 20070319: @@ -330,7 +534,7 @@ Recent changes: incorrectly, and ensure that you have at least src/lib/libc/Makefile 1.130. -20070210: +20070210: src/sys/sys/{sa.h,savar.h} were removed. find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \ | xargs egrep -l '/sa.h|/savar.h' | xargs rm @@ -361,12 +565,12 @@ Recent changes: 20061108: The configure script used in the src/tools/gcc compiler has been changed to indicate that our libc has ssp support built-in and - does not depend on -lssp and -lssp-nonshared. You'll need to + does not depend on -lssp and -lssp-nonshared. You'll need to make clean in src/tools/gcc first to rebuild the compiler. 20061009: The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer - available. Use net.inet{,6}.tcp{,6}.congctl.selected instead. + available. Use net.inet{,6}.tcp{,6}.congctl.selected instead. 20060814: The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been @@ -375,9 +579,9 @@ Recent changes: few years should cope. 20060703: - MPACPI is no more. We always configure PCI interrupts using ACPI - if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed - to ACPI_SCANPCI. Thanks to work from fvdl. + MPACPI is no more. We always configure PCI interrupts using ACPI + if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed + to ACPI_SCANPCI. Thanks to work from fvdl. 20060627: socket(2) has changed, and its system call has been versioned. @@ -428,10 +632,10 @@ Hints for a more successful build: on any other part of the source tree that depends on up to date functionality. If you use build.sh, you should not have this problem. - + What to do if things don't work: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -When things don't work there is usually a few things that commonly +When things don't work there are usually a few things that commonly should be done. 1) make includes This should be done automatically by make build. @@ -539,3 +743,17 @@ Fix: Rebuild and install lib/libc Symptom:lint does not understand the '-X' option Fix: May need to build & install libs with NOLINT=1 before rebuilding lint + +Symptom:Update build fails in src/tools/gcc complaining that a variable + (e.g. CPPFLAGS) has changed since the previous run. +Fix: Run "nbmake-${ARCH} clean" in src/tools/gcc or do a clean build. + +Symptom:cvs [update aborted]: cannot open directory /cvsroot/src/...: + No such file or directory. +Cause: If a directory is created by mistake, then it is sometimes + deleted from the CVS repository using administrative commands + that bypass the normal cvs access controls. If your cvs working tree + contains references to a directory that has been deleted on the + server in this way, then "cvs update" reports this error. +Fix: Recursively delete the affected directory from your working tree + and try the update again.