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UPDATING revision 1.47
      1 $NetBSD: UPDATING,v 1.47 2001/12/02 03:07:29 jmc Exp $
      2 
      3 This file is intended to be a brief introduction to the build
      4 process and a reference on what to do if something doesn't work.
      5 
      6 For a more detailed description see Makefile.
      7 
      8 Recent changes:
      9 ^^^^^^^^^^^^^^^
     10 20011201:
     11 	In order for a sparc64 build to work you must have a working awk. If
     12 	you've built and installed a system with the new toolchain up to this
     13 	point you do not have a working awk as it's abililty to do floating
     14 	point is broken. 
     15 
     16 	To build:
     17 
     18 	remake and install gnu/lib/libgcc
     19 	remake and install gnu/usr.bin/gawk into /usr/bin (make sure it links
     20 	against the libgcc.a)
     21 
     22 20011128:
     23 	Kernel config information was changed to use defflag in
     24 	the various "files" files.  Bug fixes to config(8) are
     25 	required in order for this to work properly.  Make sure
     26 	to build and install in usr.sbin/config before attempting
     27 	to build a new kernel.
     28 
     29 20011030:
     30 	libc/locale/wcstod.c now needs new lint(1). Update lint(1)
     31 	before building libc.
     32 
     33 20011029:
     34 	The new document BUILDING.mdoc (view with nroff | more, or
     35 	see pre-generated .txt and .html versions) describes the build
     36 	procedure in great detail.  BUILDING, and the USE_NEW_TOOLCHAIN
     37 	build process, are intended in the long run to replace this
     38 	manual update log.
     39 
     40 	Users building a USE_NEW_TOOLCHAIN system should read the
     41 	BUILDING document for caveats.  Generally, BUILDING supersedes
     42 	UPDATING for these systems, as tool updating is taken care of
     43 	by the new build system.
     44 
     45 20011028:
     46 	src/etc/Makefile now needs install to be able to handle
     47 	symlinks that point to nowhere. A bug in install that
     48 	prevented this was corrected.
     49 
     50 	Solution: update and reinstall usr.bin/xinstall
     51 	Better Solution: Use the new toolchain and it will just work
     52 	for you.
     53 
     54 20011006:
     55 	/etc/mtree/NetBSD.dist has been updated to take advantage of
     56 	absolute path support added to mtree(8). Older mtree(8)s don't
     57 	understand the format.
     58 
     59 	Solution: update and reinstall usr.sbin/mtree
     60 
     61 20011004:
     62 	Crunchgen has been updated to work via reach-over makefiles. Updating
     63 	is suggested before running a snapshot build
     64 
     65 20010915:
     66 	The new "ubcperf" code committed by Chuck Silvers removed
     67 	a header file, uvm/uvm_vnode.h.  There may be stale .depend
     68 	files that still reference this file.
     69 
     70 	Solution: "make cleandir && make dependall" in affected
     71 	directories.
     72 
     73 20010803:
     74 	grep.info is now built from grep.texi using makeinfo.  Since it
     75 	requires makeinfo v4.0, you need to install new texinfo before
     76 	building gnu/usr.bin/grep.  To install new texinfo, please follow
     77 	the instruction described in 20010726 entry.
     78 
     79 20010803:
     80 	(i386 only): i386 kernel now uses new instructions like
     81         `fxsave' which old gas doesn't understand.  To build the
     82 	kernel successfuly, you need to build and install new gas
     83 	(gnu/usr.bin/gas.new), or (temporarily) comment out
     84 	"options I686_CPU" from your kernel configuration until you
     85 	rebuilt your userland (and got a new gas).
     86 
     87 20010731:
     88 	Bootloader update on ELF platforms.  DDB in kernels from before
     89 	this will be unable to read symbol tables provided by newer
     90 	bootloaders.
     91 
     92 20010726:
     93 	Texinfo was updated to 4.0.  To avoid failures when trying to
     94 	build the included texinfo files, do:
     95 
     96 	cd src/gnu/usr.bin/texinfo
     97 	make MKINFO=no dependall install
     98 
     99 20010718:
    100 	Enabled correct .init/.fini processing in crt0.  The way this
    101 	was done was to change a -I directive to cc(1), which means
    102 	make(1) will have a stale dependency (it will be checking the
    103 	timestamp on the wrong "dot_init.h").
    104 
    105 	The symptom you will see is that new programs die with SIGSEGV
    106 	if you have a stale dependency.
    107 
    108 	Solution: "make cleandir" in both lib/csu and libexec/ld.elf_so
    109 	before starting your build.
    110 
    111 20010628:
    112 	A construct was added to uvm_page.h that uncovered a bug
    113 	in lint(1).  If you get a warning/error about a non-portable
    114 	bitfield, update your lint(1) before proceeding.
    115 
    116 20010226:
    117 	Added named user/group to system. Need to hand add this in or builds
    118 	will break as mtree aborts early.
    119 
    120 	To work around add by hand:
    121 
    122 	named:*:14:
    123 
    124 	to /etc/group and add:
    125 
    126 	named:*:14:14::0:0:Named pseudo-user:/var/named:/sbin/nologin
    127 
    128 	to master.passwd (use vipw for instance if doing by hand).
    129 
    130 	Now a make build should progress.
    131 
    132 20010219:
    133 	get/setprogname() added. Any hostprog's that may use this will need
    134         to be bootstrapped manually until the host system is current.
    135 
    136         Known problems: sys/arch/macppc/stand/fixcoff
    137 			usr.sbin/config (adding -DMAKE_BOOTSTRAP to
    138 			  CFLAGS and rebuilding should work)
    139 			usr.sbin/mdsetimage - Build a static copy if
    140   		          building a snapshot before fully bootstrapped.
    141 
    142 20010204:
    143 	prepare the code to compile with stricter gcc flags. in
    144 	particular start eliminating redundant declarations. Yacc
    145 	needs to be installed before make build.
    146 
    147 20010114:
    148 	introduce .if commands(target) in make(1). You need to
    149 	bring everything up-to-date first, then without installing
    150 	anything make and install in usr.bin/make, then proceed
    151 	with make build.
    152 
    153 20010101:
    154 	bsd.subdir.mk committed 20001230 had a bug which caused
    155 	afterinstall targets to run too soon; update again.
    156 
    157 20001230:
    158 	New share/mk files needed to support .WAIT in SUBDIR variables.
    159 	If you get make errors, 
    160 		(cd share/mk; make install)
    161 	Also, PRINTOBJDIR has changed and is now used more heavily.
    162 
    163 20001019:
    164 	The `ca' device driver has been replaced by `ld'; although the
    165 	major and minor numbers haven't changed, you should update your /dev
    166 	directory.
    167 
    168 20000929:
    169 	The following make directives are obsoleted.
    170 	MKCRYPTO_RSA NOCRYPTO_RSA NOCRYPTO_RC5 NOCRYPTO_IDEA 
    171 	By default, RSA is built into libcrypto.  IDEA and RC5 will not be
    172 	built into libcrypto.  By using MKCRYPTO_{RC5,IDEA}, you can build
    173 	additional library libcrypto_{idea,rc5}.
    174 
    175 
    176 Hints for a more successful build:
    177 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    178     Build a new kernel first:
    179 	This makes sure that any new system calls or features
    180 	   expected by the new userland will be present.  This
    181 	   helps to avoid critical errors when upgrading.
    182     Use object directories:
    183 	This helps to keep stale object
    184 	   files from polluting the build if a Makefile "forgets"
    185 	   about one.  It also makes it easier to clean up after
    186 	   a build.  It's also necessary if you want to use the
    187 	   same source tree for multiple machines.
    188 	   To use object directories:
    189 	    a) cd /usr/src ; make cleandir
    190 	    b) Add "OBJMACHINE=yes" to /etc/mk.conf
    191 	    c) Add "MKOBJDIRS=yes" to /etc/mk.conf
    192 	    d) cd /usr/src ; make build
    193 	   Note that running "make obj" in a directory will create
    194 	   in obj.$MACHINE directory.
    195     Build to a DESTDIR:
    196 	This helps to keep old
    197 	   installed files (especially libraries) from interfering
    198 	   with the new build.
    199 	   To build to a DESTDIR, set the DESTDIR environment
    200 	   variable before running make build.  It should be set to
    201 	   the pathname of an initially empty directory.
    202 	   Problems: you might need to update critical utilities
    203 		without using DESTDIR since nothing is executed
    204 		from what is installed in DESTDIR.
    205 		(See critical utils, below)
    206     Build often:
    207 	This keeps critical utilities current enough to not choke
    208 	on any other part of the source tree that depends on up to
    209 	date functionality.
    210  
    211 What to do if things don't work:
    212 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    213 When things don't work there is usually a few things that commonly
    214 should be done.
    215     1)	make includes
    216 	This should be done automatically by make build.
    217     2)  cd share/mk && make install
    218 	Again, automatically done by make build.
    219 
    220 Failsafe rebuild of a small part of the tree:
    221 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    222 To make sure you rebuild something correctly you want to do
    223 something like the following:
    224     1)  Make sure the includes and .mk files are up to date.
    225     2)  Make sure any program used to build the particular
    226 	utility is up to date.  (yacc, lex, etc...)
    227     3)  cd ...path/to/util...
    228 	make cleandir
    229 	rm ...all obj directories...
    230 	make cleandir			# yes, again
    231 	make obj
    232 	make depend && make
    233 
    234 Failsafe rebuild of the entire tree:
    235 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    236 If you really want to make sure the source tree is clean and
    237 ready for a build try the following.  Note that sourcing /etc/mk.conf
    238 (a make(1) Makefile) in this manner is not right, and will not work
    239 for anyone who uses any make(1) features in /etc/mk.conf.
    240 
    241 ---cut here---
    242 #!/bin/sh
    243 . /etc/mk.conf
    244 
    245 if [ -z $BSDSRCDIR ] ; then
    246     BSDSRCDIR=/usr/src
    247 fi
    248 if [ \! -d $BSDSRCDIR ] ; then
    249     echo Unable to find sources
    250     exit 1
    251 fi
    252 find $BSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
    253 
    254 if [ -z $BSDOBJDIR ] ; then
    255     BSDOBJDIR=/usr/obj
    256 fi
    257 if [ -d $BSDOBJDIR ] ; then
    258     rm -rf $BSDOBJDIR
    259 fi
    260 
    261 cd $BSDSRCDIR && make cleandir
    262 
    263 ---cut here---
    264 
    265 Critical utilities:
    266 ^^^^^^^^^^^^^^^^^^^
    267 	gnu/usr.bin/egcs
    268 	usr.bin/compile_et
    269 	usr.bin/make
    270 	usr.bin/yacc
    271 	usr.bin/lex
    272 	usr.bin/xlint
    273 	usr.sbin/config
    274 
    275 Other problems and possible solutions:
    276 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    277 Symptom:Unreasonable compiler errors.
    278 Fix:	Rebuild gnu/usr.bin/egcs
    279 
    280 Symptom:Complaints involving a Makefile.
    281 Fix:	Rebuild usr.bin/make:
    282 	cd usr.bin/make && make && make install
    283         Or, a failsafe method if that doesn't work:
    284 	cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
    285 
    286 Fix:	Make sure .mk files are up to date.
    287 	cd share/mk && make install
    288 
    289 Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
    290 Fix:	Rebuild usr.sbin/config
    291 
    292 Symptom:
    293 Fix:	Rebuild usr.bin/yacc
    294 
    295 Symptom:
    296 Fix:	Rebuild usr.bin/lex
    297 
    298 Symptom:
    299 Fix:	rm /usr/lib/libbfd.a
    300 
    301 Symptom:Obsolete intermediate files are used during compilation
    302 Fix:	Try the following sequence of commands in the directory in question.
    303 	make cleandir; rm `make print-objdir`; make cleandir; make obj
    304 	(If you built the tree without "make obj" in the past, obsolete files
    305 	may remain.  The command tries to clean everything up)
    306 
    307 Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type
    308 Fix:	Rebuild and install usr.bin/menuc
    309 
    310 Symptom:mklocale not found during build in share/locale/ctype
    311 Fix:	Build and install usr.bin/mklocale
    312 
    313 Symptom:undefined reference to `__assert13'
    314 Fix:    Rebuild and install lib/libc
    315 
    316 Symptom:usr.sbin/config fails to build.
    317 Fix:	Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
    318 
    319 Symptom:undefined reference to `getprogname' or `setprogname'
    320 Fix:    Rebuild and install lib/libc
    321 
    322 Symptom:lint does not understand the '-X' option
    323 Fix:    May need to build & install libs with NOLINT=1 before rebuilding lint
    324