$NetBSD: UPDATING,v 1.46 2001/11/28 18:53:34 thorpej Exp $ This file is intended to be a brief introduction to the build process and a reference on what to do if something doesn't work. For a more detailed description see Makefile. Recent changes: ^^^^^^^^^^^^^^^ 20011128: Kernel config information was changed to use defflag in the various "files" files. Bug fixes to config(8) are required in order for this to work properly. Make sure to build and install in usr.sbin/config before attempting to build a new kernel. 20011030: libc/locale/wcstod.c now needs new lint(1). Update lint(1) before building libc. 20011029: The new document BUILDING.mdoc (view with nroff | more, or see pre-generated .txt and .html versions) describes the build procedure in great detail. BUILDING, and the USE_NEW_TOOLCHAIN build process, are intended in the long run to replace this manual update log. Users building a USE_NEW_TOOLCHAIN system should read the BUILDING document for caveats. Generally, BUILDING supersedes UPDATING for these systems, as tool updating is taken care of by the new build system. 20011028: src/etc/Makefile now needs install to be able to handle symlinks that point to nowhere. A bug in install that prevented this was corrected. Solution: update and reinstall usr.bin/xinstall Better Solution: Use the new toolchain and it will just work for you. 20011006: /etc/mtree/NetBSD.dist has been updated to take advantage of absolute path support added to mtree(8). Older mtree(8)s don't understand the format. Solution: update and reinstall usr.sbin/mtree 20011004: Crunchgen has been updated to work via reach-over makefiles. Updating is suggested before running a snapshot build 20010915: The new "ubcperf" code committed by Chuck Silvers removed a header file, uvm/uvm_vnode.h. There may be stale .depend files that still reference this file. Solution: "make cleandir && make dependall" in affected directories. 20010803: grep.info is now built from grep.texi using makeinfo. Since it requires makeinfo v4.0, you need to install new texinfo before building gnu/usr.bin/grep. To install new texinfo, please follow the instruction described in 20010726 entry. 20010803: (i386 only): i386 kernel now uses new instructions like `fxsave' which old gas doesn't understand. To build the kernel successfuly, you need to build and install new gas (gnu/usr.bin/gas.new), or (temporarily) comment out "options I686_CPU" from your kernel configuration until you rebuilt your userland (and got a new gas). 20010731: Bootloader update on ELF platforms. DDB in kernels from before this will be unable to read symbol tables provided by newer bootloaders. 20010726: Texinfo was updated to 4.0. To avoid failures when trying to build the included texinfo files, do: cd src/gnu/usr.bin/texinfo make MKINFO=no dependall install 20010718: Enabled correct .init/.fini processing in crt0. The way this was done was to change a -I directive to cc(1), which means make(1) will have a stale dependency (it will be checking the timestamp on the wrong "dot_init.h"). The symptom you will see is that new programs die with SIGSEGV if you have a stale dependency. Solution: "make cleandir" in both lib/csu and libexec/ld.elf_so before starting your build. 20010628: A construct was added to uvm_page.h that uncovered a bug in lint(1). If you get a warning/error about a non-portable bitfield, update your lint(1) before proceeding. 20010226: Added named user/group to system. Need to hand add this in or builds will break as mtree aborts early. To work around add by hand: named:*:14: to /etc/group and add: named:*:14:14::0:0:Named pseudo-user:/var/named:/sbin/nologin to master.passwd (use vipw for instance if doing by hand). Now a make build should progress. 20010219: get/setprogname() added. Any hostprog's that may use this will need to be bootstrapped manually until the host system is current. Known problems: sys/arch/macppc/stand/fixcoff usr.sbin/config (adding -DMAKE_BOOTSTRAP to CFLAGS and rebuilding should work) usr.sbin/mdsetimage - Build a static copy if building a snapshot before fully bootstrapped. 20010204: prepare the code to compile with stricter gcc flags. in particular start eliminating redundant declarations. Yacc needs to be installed before make build. 20010114: introduce .if commands(target) in make(1). You need to bring everything up-to-date first, then without installing anything make and install in usr.bin/make, then proceed with make build. 20010101: bsd.subdir.mk committed 20001230 had a bug which caused afterinstall targets to run too soon; update again. 20001230: New share/mk files needed to support .WAIT in SUBDIR variables. If you get make errors, (cd share/mk; make install) Also, PRINTOBJDIR has changed and is now used more heavily. 20001019: The `ca' device driver has been replaced by `ld'; although the major and minor numbers haven't changed, you should update your /dev directory. 20000929: The following make directives are obsoleted. MKCRYPTO_RSA NOCRYPTO_RSA NOCRYPTO_RC5 NOCRYPTO_IDEA By default, RSA is built into libcrypto. IDEA and RC5 will not be built into libcrypto. By using MKCRYPTO_{RC5,IDEA}, you can build additional library libcrypto_{idea,rc5}. Hints for a more successful build: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Build a new kernel first: This makes sure that any new system calls or features expected by the new userland will be present. This helps to avoid critical errors when upgrading. Use object directories: This helps to keep stale object files from polluting the build if a Makefile "forgets" about one. It also makes it easier to clean up after a build. It's also necessary if you want to use the same source tree for multiple machines. To use object directories: a) cd /usr/src ; make cleandir b) Add "OBJMACHINE=yes" to /etc/mk.conf c) Add "MKOBJDIRS=yes" to /etc/mk.conf d) cd /usr/src ; make build Note that running "make obj" in a directory will create in obj.$MACHINE directory. Build to a DESTDIR: This helps to keep old installed files (especially libraries) from interfering with the new build. To build to a DESTDIR, set the DESTDIR environment variable before running make build. It should be set to the pathname of an initially empty directory. Problems: you might need to update critical utilities without using DESTDIR since nothing is executed from what is installed in DESTDIR. (See critical utils, below) Build often: This keeps critical utilities current enough to not choke on any other part of the source tree that depends on up to date functionality. What to do if things don't work: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ When things don't work there is usually a few things that commonly should be done. 1) make includes This should be done automatically by make build. 2) cd share/mk && make install Again, automatically done by make build. Failsafe rebuild of a small part of the tree: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ To make sure you rebuild something correctly you want to do something like the following: 1) Make sure the includes and .mk files are up to date. 2) Make sure any program used to build the particular utility is up to date. (yacc, lex, etc...) 3) cd ...path/to/util... make cleandir rm ...all obj directories... make cleandir # yes, again make obj make depend && make Failsafe rebuild of the entire tree: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ If you really want to make sure the source tree is clean and ready for a build try the following. Note that sourcing /etc/mk.conf (a make(1) Makefile) in this manner is not right, and will not work for anyone who uses any make(1) features in /etc/mk.conf. ---cut here--- #!/bin/sh . /etc/mk.conf if [ -z $BSDSRCDIR ] ; then BSDSRCDIR=/usr/src fi if [ \! -d $BSDSRCDIR ] ; then echo Unable to find sources exit 1 fi find $BSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \; if [ -z $BSDOBJDIR ] ; then BSDOBJDIR=/usr/obj fi if [ -d $BSDOBJDIR ] ; then rm -rf $BSDOBJDIR fi cd $BSDSRCDIR && make cleandir ---cut here--- Critical utilities: ^^^^^^^^^^^^^^^^^^^ gnu/usr.bin/egcs usr.bin/compile_et usr.bin/make usr.bin/yacc usr.bin/lex usr.bin/xlint usr.sbin/config Other problems and possible solutions: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Symptom:Unreasonable compiler errors. Fix: Rebuild gnu/usr.bin/egcs Symptom:Complaints involving a Makefile. Fix: Rebuild usr.bin/make: cd usr.bin/make && make && make install Or, a failsafe method if that doesn't work: cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin Fix: Make sure .mk files are up to date. cd share/mk && make install Symptom:Kernel `config' fails to configure any kernel, including GENERIC. Fix: Rebuild usr.sbin/config Symptom: Fix: Rebuild usr.bin/yacc Symptom: Fix: Rebuild usr.bin/lex Symptom: Fix: rm /usr/lib/libbfd.a Symptom:Obsolete intermediate files are used during compilation Fix: Try the following sequence of commands in the directory in question. make cleandir; rm `make print-objdir`; make cleandir; make obj (If you built the tree without "make obj" in the past, obsolete files may remain. The command tries to clean everything up) Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type Fix: Rebuild and install usr.bin/menuc Symptom:mklocale not found during build in share/locale/ctype Fix: Build and install usr.bin/mklocale Symptom:undefined reference to `__assert13' Fix: Rebuild and install lib/libc Symptom:usr.sbin/config fails to build. Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile. Symptom:undefined reference to `getprogname' or `setprogname' 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