135 lines
3.9 KiB
Plaintext
135 lines
3.9 KiB
Plaintext
$NetBSD: UPDATING,v 1.3 2000/08/20 19:51:24 itojun 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:
|
|
^^^^^^^^^^^^^^^
|
|
|
|
20000623:
|
|
MKCRYPTO and friends added to share/mk/bsd.own.mk.
|
|
'cd share/mk ; make install' needed before make build.
|
|
|
|
|
|
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.sbin/config
|
|
|
|
Other problems and possibly solutions:
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
Symptom:Unreasonable compiler errors.
|
|
Fix: Rebuild gnu/usr.bin/egcs
|
|
|
|
Symptom:Complaints involving a Makefile.
|
|
Fix: Make sure .mk files are up to date.
|
|
cd share/mk && make install
|
|
Fix: Rebuild usr.bin/make
|
|
|
|
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
|