cd ${KERNSRCDIR}/${KERNARCHDIR}/compile && ${PRINTOBJDIR}
This is far simpler than the previous system, and more robust with
objdirs built via BSDOBJDIR.
The previous method of finding KERNOBJDIR when using BSDOBJDIR by
referencing _SRC_TOP_OBJ_ from another directory was extremely
fragile due to the depth first tree walk by <bsd.subdir.mk>, and
the caching of _SRC_TOP_OBJ_ (with MAKEOVERRIDES) which would be
empty on the *first* pass to create fresh objdirs.
This change requires adding sys/arch/*/compile/Makefile to create
the objdir in that directory, and descending into arch/*/compile
from arch/*/Makefile. Remove the now-unnecessary .keep_me files
whilst here.
Per lengthy discussion with Andrew Brown.
- add '-D ${DESTDIR}' to INSTPRIV, so install(8) removes the leading
${DESTDIR} from the metalogged path
- provide ${METADB.add} variable (for "${CAT} -l >> ${METALOG}"), to make
it easier to replace manual metalog manipulation in the future.
- with manual metalog additions, don't add the leading ${DESTDIR} in the path
- in maketars, use "mtree -C ..." instead of
"mtree -D ... | sed -e 's,\(.*\) \(\..*\),\2 \1,";
Benefits:
- maketars "Parsing METALOG" step speeds up from 29 seconds to 1.2 seconds
on a P3-600.
(This also benefits "make installworld" at the top level.)
- ${DESTDIR}/METALOG is easier to read without the leading "${DESTDIR}"
on all the pathnames, and it's smaller as well.
Fixes a problem found by Andrew Brown where programs outside of the NetBSD
src that use the /usr/share/mk framework (such as pkgsrc/pkgtools/digest)
couldn't be installed if /usr/src/etc wasn't present.
rules use that directory to lookup users & groups as opposed to the
host system's passwd(5) and group(5) databases.
This is a change of behaviour which should make the build system more
robust when new users & groups are added to the NetBSD source.
The only users who may be adversely affected are those (small number,
if any) that renumber the uids & gids away from the "standard" NetBSD
ones; in this case said users should maintain local mods to
${NETBSDSRCDIR}/etc/{master.passwd,group} ...
things like the .note.netbsd.ident section are provided by crti/crtn.
crti/crtn also provide the _init() and _fini() routines.
crtbegin/crtend now only provide support for ctors/dtors. This paves
the way to using the "crtstuff" provided with GCC (when we upgrade to
GCC 3.3), which provides, among other things, much better C++/Java
exception handling.
and the sources now use that define, so there is no need for us to define
ABICALLS. Since that was the only use for the AINC variable, garbage-collect
it.
-dynamic-linker=/libexec/ld.elf_so) if the BINDIR of the program being
built is /bin or /sbin.
The reason we do this is because now all programs *except* those in
/bin and /sbin (i.e. the "special cases") match the default the compiler
uses, which is what is used for things in e.g. xsrc, pkgsrc, and other
random 3rd party programs.
This is done by decoupling where a shlib is installed from how it
is located. Two new variables, SHLIBINSTALLDIR and SHLINKINSTALLDIR,
contain the former information, and key off MKDYNAMICROOT only. SHLIBDIR
and SHLINKDIR contain the latter, and key off MKDYNAMICROOT and BINDIR.
The SHLIBINSTALLDIR, SHLIBDIR, _LIBSODIR, SHLINKINSTALLDIR, and
SHLINKDIR parameters are moved to a new <bsd.shlib.mk>; see bsd.README
for usage details.
-dynamic-linker=/libexec/ld.elf_so) if the BINDIR of the program being
built is /bin or /sbin.
The reason we do this is because now all programs *except* those in
/bin and /sbin (i.e. the "special cases") match the default the compiler
uses, which is what is used for things in e.g. xsrc, pkgsrc, and other
random 3rd party programs.
This means that:
+ /bin and /sbin (and the few programs in /usr/* which were statically
linked) are now dynamically linked.
+ The shared libraries that are needed by the /bin and /sbin programs
are now installed into /lib (with compatability symlinks from
/usr/lib). These are:
c crypt edit ipsec kvm m m387 termcap termlib util z
+ The shared linker is now in /libexec/ld.elf_so, and
/usr/libexec/ld.elf_so is a symlink to the former.
If you want the prior behaviour of "some applications statically linked,
the rest dynamically linked", set MKDYNAMICROOT=no in your mk.conf(5).
If you have a philosophical objection to dynamic libraries, continue
to set LDSTATIC=-static in your mk.conf(5), and please don't waste any
more time in trying to convince us why dynamic libraries are 3v1l.
two variables:
TOOLCHAIN_MISSING -- set to "yes" on platforms for which there is
no working in-tree toolchain (hppa, ns32k, sh5, x86_64).
EXTERNAL_TOOLCHAIN -- if defined by the user, points to the root of
an external toolchain (e.g. /usr/local/gnu). This enables the cross-build
framework even for TOOLCHAIN_MISSING platforms.
If TOOLCHAIN_MISSING is set to "yes", MKGDB, MKBFD, and MKGCC are all
unconditionally set to "no", since the bits are not there to build.
If EXTERNAL_TOOLCHAIN is set, MKGCC is unconditionally set to "no",
since the external toolchain's compiler is not in-sync with the
in-tree compiler support components (e.g. libgcc).
* Set MACHINE_CPU much earlier in bsd.own.mk, so that more tests in
that file can use it.
be changed in the future to "yes".
If MKDYNAMICROOT == "no", there is no change from existing behaviour
of a static /bin and /sbin (and a few programs in elsewhere).
If MKDYNAMICROOT == "yes", the following changes occur:
in <bsd.own.mk>:
SHLIBDIR?= /lib
SHLINKDIR?= /lib
in various Makefiles, the following entry is DISABLED.
LDSTATIC?=-static
This results in all programs (except those "standalone" programs built
in sys/arch/*/stand) are linked dynamically, the shared linker is moved
from /usr/libexec to /lib (with a compat symlink), and the shared
libraries used by /bin and /sbin programs are moved from /usr/lib to
/lib (with compat symlinks).
as they default to using install(1) -r.
the rm can cause problems in certain situations, such as moving a library or
shared linker that install(1) depends upon to another location and replacing
it with a (sym)link.
* Don't make OBJECT_FMT dependent on USE_NEW_TOOLCHAIN. All ports
except ns32k are ELF, so set it appropriately. Allow it to be
overridden in the ns32k case.
* If ns32k && USE_NEW_TOOLCHAIN, don't build shared libraries, because
external toolchains don't support them for our a.out.
* If ns32k && OBJECT_FMT == ELF, the GNU platform is "netbsdelf".
* If ns32k && USE_NEW_TOOLCHAIN, don't attempt to build the in-tree
binutils 2.11.2, gdb 5.0, or gcc 2.95.3.
This allows us to do USE_NEW_TOOLCHAIN cross-builds to ns32k using
an external toolchain.
There were too many synchronisation problems with using the former;
including situations such as a "make clean" performed between two
installs to the same DESTDIR would result in a truncated METALOG and
the resultant sets would be missing stuff such as include files that
don't get reinstalled if they haven't changed, even with !UPDATE.
Sources for a target do not accumulate over dependency lines
when this operator is used.
An unstated implication of this is that when parallel builds are done,
each separate instance of the target can be scheduled independantly.
As a result, the linksinstall target with commands could be executed
too early during a parallel build since they didn't actually have a
dependancy on "realinstall".
To fix this, correct the linksinstall:: realinstall dependancy by
eliminating the command-less linksinstall target, and moving the
dependancy to the other linksinstall target.
Defaults to the directory determined by the _SRC_TOP_ logic (if != ""),
and the BSDSRCDIR.
NETBSDSRCDIR has been provided for use by the various NetBSD source
Makefiles to find the top of the NetBSD source tree, and isn't
affected by the inheritance properties of _SRC_TOP_, nor does it
have the magic BSDOBJDIR baggage that BSDSRCDIR is stuck with.
determined, since BSDSRCDIR's default of /usr/src might not exist and the
calculation of _SRC_TOP_OBJ_ would then generate a warning :-(.
_SRC_TOP_ can now == "" if make(1) (or a parent make(1)) was started
outside of the NetBSD source tree.
Now, if _SRC_TOP_ != "", BSDSRCDIR defaults to ${_SRC_TOP_} and
BSDOBJDIR defaults to the objdir of ${BSDSRCDIR}.
Failsafe defaults for BSDSRCDIR (/usr/src) and BSDOBJDIR (/usr/obj)
are provided later in the file.
This should result in a usable BSDSRCDIR default (i.e, _SRC_TOP_ if
running from within the source tree), with safe fallbacks as appropriate
(/usr/src, as always), meaning that BSDSRCDIR should be able to be used
instead of _SRC_TOP_ in the source tree, although I need to carefully
test this. *aaaiiiieeee!!!*. (Now I understand some of Todd's pain :)
make -V FILES
from being useful (and given that every other variable can be
extracted using make -V, the behaviour was unusually inconsistent
given that the original reason for clearing it doesn't seem to be
relevant anymore)
- use <bsd.prog.mk> instead of directly including <bsd.files.mk>
(and possibly <bsd.man.mk> or <bsd.own.mk>)
- remove obsolete NOPROG
${BSDSRCDIR} if make(1) is running outside of the NetBSD source tree.
This should solve various issues, including building xsrc which uses
${BSDSRCDIR}/distrib/sets/maketars.
christos