- Determine KERN_AS automatically depending on whether OPT_MODULAR is
set or not, in the same way as libcompat.

- Specify OPT_MODULAR in the port Makefile instead of KERN_AS.

Now, KERN_AS=library is used for kernels without module(7) for all ports.

OK christos

branches: 1.95.14;
struct cpu_info is varible size when page_size is not fixed.

branches: 1.94.2;
Ignore unused arguments for clang as we pass assembler flags and the
like to the preprocessor-only mode. Conditionalize GCC flags that are
not known to clang accordingly.

Define ${LINKSCRIPT} in one place.

Adjust paths to ${KERNLDSCRIPT} files so that dependency is resolved.

Use ${KERNLDSCRIPT} instead of ${KERN_LDSCRIPT}. The former is added
to ${SYSTEM_DEP} if defined.

branches: 1.90.2;
Use LINKSCRIPT.

add -Wa,-Av8 to CFLAGS and AFLAGS to fix kernel build with binutils 2.23.2.

branches: 1.88.6; 1.88.16; 1.88.20;
Move SPARC and SPARC64 to modern CPP. Update UPDATING note for this and
Alpha.

branches: 1.87.2;
remove almost all the ability to build netbsd with an a.out target.
we're ELF now, and there are many missing checks against OBJECT_FMT.
if we ever consider switching, the we can figure out what new ones
we need but for now it's just clutter.

this doesn't remove any of the support for exec_aout or any actually
required-for-boot a.out support, only the ability to build a netbsd
release in a.out format. ie, most of this code has been dead for
over a decade.

i've tested builds on vax, amd64, i386, mac68k, macppc, sparc, atari,
amiga, shark, cats, dreamcast, landisk, mmeye and x68k. this covers
the 5 MACHINE_ARCH's affected, and all the other arch code touched.
it also includes some actual run-time testing of sparc, i386 and
shark, and i performed binary comparison upon amiga and x68k as well.


some minor details relevant:
- move shlib.[ch] from ld.aout_so into ldconfig proper, and cut them
down to only the parts ldconfig needs
- remove various unused source files
- switch amiga bootblocks to using elf2bb.h instead of aout2bb.h

branches: 1.86.10; 1.86.30; 1.86.32;
Add missing assym.h dependency.

branches: 1.85.50; 1.85.56;
merge ktrace-lwp.

branches: 1.84.2;
s/GENASSYM/GENASSYM_CONF/ so we can use "GENASSYM" as the program name.

Add the %MAKEOPTIONSAPPEND token at the end of the file, after the
common Makefile.kern.inc has been included.

branches: 1.82.6; 1.82.10;
The traditional C preprocessor is fixed in GCC 3.3 now, so no need
to skip -traditional-cpp for HAVE_GCC3.

add a couple more dependencies so that we can build a kernel without
make depend.

Don't use -traditional-cpp if HAVE_GCC3.

branches: 1.79.8;
Remove out-dated dependencies on Makefile.

Instead of checking for previous usage, just append to some make
variables. Tweak some variables to provide for more uniform defaults.
Minor adaption to makefiles for already converted ports.

cleanup:
options SPACE TAB
makeoptions TAB
psuedo-device TAB
remove trailing whitespace
replace multiple spaces -> tabs
options "FOO" -> options FOO
options "FOO=bar" -> options FOO=bar
options "FOO=\"bar\"" -> options FOO="\"bar\""

Abstract out a large chunk of the kernel build machinery so that new
build features (such as ross's DEBUGLIST) can easily be applied to all
ports. This should reduce the complexity of each port's kernel
Makefile considerably. Line counts:

227 arch/i386/conf/Makefile.i386.orig
98 arch/i386/conf/Makefile.i386
227 arch/alpha/conf/Makefile.alpha.orig
99 arch/alpha/conf/Makefile.alpha
219 arch/sparc/conf/Makefile.sparc.orig
102 arch/sparc/conf/Makefile.sparc
215 arch/vax/conf/Makefile.vax.orig
102 arch/vax/conf/Makefile.vax
253 conf/Makefile.kern.inc

Roll i386, alpha, sparc, and vax over to the new build machinery.

Change defaults for kernel compiles. Default all to USETOOLS?=no and have
the etc Makefile override that by putting USETOOLS into $.MAKEOVERRIDES
This way the default for kernel compiles is still to use the installed
toolchain instead of depending on $TOOLDIR. $TOOLDIR can be used by
simply adding USETOOLS=yes to the command line as usual.

Adjust each ports template to set the default no setting and also pull in
bsd.own.mk if they weren't already to ensure they'll build correctly
with the new toolchain setup.

branches: 1.74.2;
Set MACHINE_ARCH explicitly in Makefiles for which it is constant.
Also, since config(8) now explcitly sets MACHINE, there is no need
to do it here in the Makefile.

branches: 1.73.2; 1.73.6;
define _KERNEL_OPT as well as _KERNEL. we will use this in the future to
get kernel "opt_foo.h" headers, rather than _KERNEL && !_LKM.

branches: 1.72.2;
Supply a kernel link script that puts `etext' at the end of all
read-only sections. Modelled after a similar change in the i386 port.

Add `-mno-fpu' to the compiler options once again: the current compiler
(egcs-2.91.66) is still liable to use FPU registers as temporaries.

delete obsolete comment

Add "install" target, so "make install" after building the kernel
does something useful. The target can be redefined by putting a
install-kernel-${MACHINE_NAME} target that fits your needs into
/etc/mk.conf.

HAVE_GCC28 -> HAVE_EGCS, and make it match gcc 2.9 as well. Also,
make the use of -Wno-uninitialized explicit, don't rely on a compiler
hack to do it for us.

Revert STRIPPROG -> STRIP

Add "dependall" target for comfort.

STRIP -> STRIPPROG

Change STRIPFLAGS=-g for cross-toolchains.

branches: 1.63.2;
be more efficient when doing the SYSTEM_LD_TAIL for -g kernels: don't
copy them just to strip them, use strip -o.

we don't need no-fpu; anyway this has been renamed in new version of egcs

clean up a bit after jason :)

- fix emitrules() like emitfiles() to deal with the prefix (otherwise it
would attempt to find the file in the normal base for the NORMAL_C rule).
- add emitincludes() which adds include directives for each prefix to the
$INCLUDES variable in the makefile.
- add %INCLUDES to each Makefile.arch to deal with the above.

this makes "prefix" actually work in a usable manner, and now i can move
on to fixing compiler warnings (errors) in the ESP code. :)

Allow SFILES to be empty; from Julian Coleman.

Use -n for ELF. Using -N might work, but produces only one section.
No flags will not work, because it will produce a kernel loaded at 0xf0000000.
This is because the bfd ELF pagesize (in elf32-sparc.c) is 0x10000. Since
we need to load at 0xf0004000, we use -n.

Add -n for ELF, note weirdness in comment.

use LINKFLAGS=-X to avoid stripping out per-file debugging info (idea from chuck@netbsd.org)

branches: 1.56.2; 1.56.4; 1.56.6;
Elf bits.

Add -Wpointer-arith warning since `void *' arithmetic is not ANSI C.

change handling of libkern:
-sys/lib/libkern builds as library per default (as it was documented all
the time)
-ports able to LKM set "KERN_AS=obj" explicitely in their Makefiles
(for now; should depend on actual "option LKM" or -better- functions
included for LKM use should be pulled in by a stub)
-always link libcompat before libkern - libkern stuff can be referred to
by libcompat, but not the other way

distclean is a synonym for cleandir

Specify a non-profiling C rule.

Add -Wno-main conditional on compiler being gcc 2.8 or egcs. (This adds
a HAVE_GCC28 check-variable that can now be used to add other gcc-2.8
flags in cases where they may be useful, or to remove gcc 2.7.2 "bug
workaround" flags.)

Make sure CPP, AR, AS, and RANLIB are defined.

Define LORDER, NM, and TSORT here, like we do the rest of the tools.

branches: 1.48.2;
define SIZE?=size, and use ${SIZE} instead of size. makes cross
compilation easier

PR/4162: Chris Jones: make cleandir does not work properly; it does not
remove the object files and the .depend file in the kernel build directory.

Move KERNBASE to 0xf0000000.

branches: 1.45.2;
Generate assym.h dependencies when making 'depend'.

Put the genassym.sh output in a temp file, and mv -f it, in case
it fails spectacularly and doesn't clean up.

Use genassym.cf

Add `-mno-fpu' to compiler flags; pulled up from 1.2 version.

Nuke some options GENERIC residue.

Nuke some GENERIC residue.

`::' => `:' ; per recent sys/lib/*/Makefile.inc changes.

* Replace explicit -O2 in CFLAGS with COPTS macro. Default COPTS?= -O2.
Lets users over-ride with makeoptions COPTS="..." in kernel config files.

Leave `mandatory' flags (like -msoft-float which on m68k enforces no
FP in kernel) in CFLAGS.

Move strip(1) flags into a separate variable, so that $STRIP can
be passed to subordinate make(1)s. Remove $TOUCH. Add HOSTED_CC,
HOSTED_CPPFLAGS, and HOSTED_CFLAGS, and use them when depending genassym.

Wrap the default definition of `S' in `.ifndef'.

Put into . Remove hooks for `config-dependent' and
`device-driver' flags.

* Add a HOSTED_C_C variable, which strips `-p', `-pg', and
`-nostdinc', and use it when building genassym.
* Use `-nostdinc' just to be sure we're self-contained.

* Define CWARNFLAGS and MKDEP in some moderately consistent fashion.
* Make S expand to an absolute path at compile time.
* Use `-S' rather than `-x' to remove debugging symbols.
* Garbage collect unused variables.
* Reverse a handful of port-specific changes that do not correspond to
the common build model and are not needed.

branches: 1.32.4;
We don't generally want to profile `genassym' (easy part of PR#2434).

Make `make depend' work for libraries.

Add -Wall -Wstrict-prototypes -Wmissing-prototypes
to the kernel build. The sparc is clean now!

Do not build vnode_if.[ch] for each kernel. Build them once, like the
various syscall sources/headers, and just compile them. From PR 2142, OK'd
by mycroft.

Define build programs with `?=', so they can be overridden with `makeoptions'.

Fix mkdep problems due to missing flags.

Use `-traditional-cpp' when building .s and .S files.

Clone these, and fix many bugs.

assym.s -> assym.h
(Some ports did this already.)

Remove `-fno-builtin'.

Compile the kernel with -Werror and -fno-builtin.

Makefile.`arch`: - Add -lcompat
- Change clean: target to be a double dep one,
so libraries can use the clean target too

Removing -DKERNEL, transition to _KERNEL has been completed

Remove -I/usr/include from `genassym' line.

Added -D_KERNEL to CFLAGS alongside each -DKERNEL.

bigtime cleanup

clean better

copyright/Id cleanup

clean vnode_if.[ch]

compile kernel with -O2

branches: 1.12.2;
vnode_if cleanup

New vnode interface.

Remove old-style profiling hack.

split sun4c/sun4m/sun4 support somewhat

compile genassym static

Some bits and pieces to make a profiled kernel (for the moment).

make make depend dependable

blow away sunos cross compilation gunk. we no longer need it,
as we are capable of compiling ourselves.

more cleanup

start to get rid of some of the hacks

New location for libkern, fixes for many paths.
+ lots of temp changes to be backed out later!
DEBUG=-g always, use gcc, link with libgcc.a, include dirs in
a weird place for my development environment.

Chris Torek's sparc port. Missing lots of things.

struct cpu_info is varible size when page_size is not fixed.

Ignore unused arguments for clang as we pass assembler flags and the
like to the preprocessor-only mode. Conditionalize GCC flags that are
not known to clang accordingly.

Define ${LINKSCRIPT} in one place.

Adjust paths to ${KERNLDSCRIPT} files so that dependency is resolved.

Use ${KERNLDSCRIPT} instead of ${KERN_LDSCRIPT}. The former is added
to ${SYSTEM_DEP} if defined.

branches: 1.90.2;
Use LINKSCRIPT.

add -Wa,-Av8 to CFLAGS and AFLAGS to fix kernel build with binutils 2.23.2.

branches: 1.88.6; 1.88.16; 1.88.20;
Move SPARC and SPARC64 to modern CPP. Update UPDATING note for this and
Alpha.

branches: 1.87.2;
remove almost all the ability to build netbsd with an a.out target.
we're ELF now, and there are many missing checks against OBJECT_FMT.
if we ever consider switching, the we can figure out what new ones
we need but for now it's just clutter.

this doesn't remove any of the support for exec_aout or any actually
required-for-boot a.out support, only the ability to build a netbsd
release in a.out format. ie, most of this code has been dead for
over a decade.

i've tested builds on vax, amd64, i386, mac68k, macppc, sparc, atari,
amiga, shark, cats, dreamcast, landisk, mmeye and x68k. this covers
the 5 MACHINE_ARCH's affected, and all the other arch code touched.
it also includes some actual run-time testing of sparc, i386 and
shark, and i performed binary comparison upon amiga and x68k as well.


some minor details relevant:
- move shlib.[ch] from ld.aout_so into ldconfig proper, and cut them
down to only the parts ldconfig needs
- remove various unused source files
- switch amiga bootblocks to using elf2bb.h instead of aout2bb.h

branches: 1.86.10; 1.86.30; 1.86.32;
Add missing assym.h dependency.

branches: 1.85.50; 1.85.56;
merge ktrace-lwp.

branches: 1.84.2;
s/GENASSYM/GENASSYM_CONF/ so we can use "GENASSYM" as the program name.

Add the %MAKEOPTIONSAPPEND token at the end of the file, after the
common Makefile.kern.inc has been included.

branches: 1.82.6; 1.82.10;
The traditional C preprocessor is fixed in GCC 3.3 now, so no need
to skip -traditional-cpp for HAVE_GCC3.

add a couple more dependencies so that we can build a kernel without
make depend.

Don't use -traditional-cpp if HAVE_GCC3.

branches: 1.79.8;
Remove out-dated dependencies on Makefile.

Instead of checking for previous usage, just append to some make
variables. Tweak some variables to provide for more uniform defaults.
Minor adaption to makefiles for already converted ports.

cleanup:
options SPACE TAB
makeoptions TAB
psuedo-device TAB
remove trailing whitespace
replace multiple spaces -> tabs
options "FOO" -> options FOO
options "FOO=bar" -> options FOO=bar
options "FOO=\"bar\"" -> options FOO="\"bar\""

Abstract out a large chunk of the kernel build machinery so that new
build features (such as ross's DEBUGLIST) can easily be applied to all
ports. This should reduce the complexity of each port's kernel
Makefile considerably. Line counts:

227 arch/i386/conf/Makefile.i386.orig
98 arch/i386/conf/Makefile.i386
227 arch/alpha/conf/Makefile.alpha.orig
99 arch/alpha/conf/Makefile.alpha
219 arch/sparc/conf/Makefile.sparc.orig
102 arch/sparc/conf/Makefile.sparc
215 arch/vax/conf/Makefile.vax.orig
102 arch/vax/conf/Makefile.vax
253 conf/Makefile.kern.inc

Roll i386, alpha, sparc, and vax over to the new build machinery.

Change defaults for kernel compiles. Default all to USETOOLS?=no and have
the etc Makefile override that by putting USETOOLS into $.MAKEOVERRIDES
This way the default for kernel compiles is still to use the installed
toolchain instead of depending on $TOOLDIR. $TOOLDIR can be used by
simply adding USETOOLS=yes to the command line as usual.

Adjust each ports template to set the default no setting and also pull in
bsd.own.mk if they weren't already to ensure they'll build correctly
with the new toolchain setup.

branches: 1.74.2;
Set MACHINE_ARCH explicitly in Makefiles for which it is constant.
Also, since config(8) now explcitly sets MACHINE, there is no need
to do it here in the Makefile.

branches: 1.73.2; 1.73.6;
define _KERNEL_OPT as well as _KERNEL. we will use this in the future to
get kernel "opt_foo.h" headers, rather than _KERNEL && !_LKM.

branches: 1.72.2;
Supply a kernel link script that puts `etext' at the end of all
read-only sections. Modelled after a similar change in the i386 port.

Add `-mno-fpu' to the compiler options once again: the current compiler
(egcs-2.91.66) is still liable to use FPU registers as temporaries.

delete obsolete comment

Add "install" target, so "make install" after building the kernel
does something useful. The target can be redefined by putting a
install-kernel-${MACHINE_NAME} target that fits your needs into
/etc/mk.conf.

HAVE_GCC28 -> HAVE_EGCS, and make it match gcc 2.9 as well. Also,
make the use of -Wno-uninitialized explicit, don't rely on a compiler
hack to do it for us.

Revert STRIPPROG -> STRIP

Add "dependall" target for comfort.

STRIP -> STRIPPROG

Change STRIPFLAGS=-g for cross-toolchains.

branches: 1.63.2;
be more efficient when doing the SYSTEM_LD_TAIL for -g kernels: don't
copy them just to strip them, use strip -o.

we don't need no-fpu; anyway this has been renamed in new version of egcs

clean up a bit after jason :)

- fix emitrules() like emitfiles() to deal with the prefix (otherwise it
would attempt to find the file in the normal base for the NORMAL_C rule).
- add emitincludes() which adds include directives for each prefix to the
$INCLUDES variable in the makefile.
- add %INCLUDES to each Makefile.arch to deal with the above.

this makes "prefix" actually work in a usable manner, and now i can move
on to fixing compiler warnings (errors) in the ESP code. :)

Allow SFILES to be empty; from Julian Coleman.

Use -n for ELF. Using -N might work, but produces only one section.
No flags will not work, because it will produce a kernel loaded at 0xf0000000.
This is because the bfd ELF pagesize (in elf32-sparc.c) is 0x10000. Since
we need to load at 0xf0004000, we use -n.

Add -n for ELF, note weirdness in comment.

use LINKFLAGS=-X to avoid stripping out per-file debugging info (idea from chuck@netbsd.org)

branches: 1.56.2; 1.56.4; 1.56.6;
Elf bits.

Add -Wpointer-arith warning since `void *' arithmetic is not ANSI C.

change handling of libkern:
-sys/lib/libkern builds as library per default (as it was documented all
the time)
-ports able to LKM set "KERN_AS=obj" explicitely in their Makefiles
(for now; should depend on actual "option LKM" or -better- functions
included for LKM use should be pulled in by a stub)
-always link libcompat before libkern - libkern stuff can be referred to
by libcompat, but not the other way

distclean is a synonym for cleandir

Specify a non-profiling C rule.

Add -Wno-main conditional on compiler being gcc 2.8 or egcs. (This adds
a HAVE_GCC28 check-variable that can now be used to add other gcc-2.8
flags in cases where they may be useful, or to remove gcc 2.7.2 "bug
workaround" flags.)

Make sure CPP, AR, AS, and RANLIB are defined.

Define LORDER, NM, and TSORT here, like we do the rest of the tools.

branches: 1.48.2;
define SIZE?=size, and use ${SIZE} instead of size. makes cross
compilation easier

PR/4162: Chris Jones: make cleandir does not work properly; it does not
remove the object files and the .depend file in the kernel build directory.

Move KERNBASE to 0xf0000000.

branches: 1.45.2;
Generate assym.h dependencies when making 'depend'.

Put the genassym.sh output in a temp file, and mv -f it, in case
it fails spectacularly and doesn't clean up.

Use genassym.cf

Add `-mno-fpu' to compiler flags; pulled up from 1.2 version.

Nuke some options GENERIC residue.

Nuke some GENERIC residue.

`::' => `:' ; per recent sys/lib/*/Makefile.inc changes.

* Replace explicit -O2 in CFLAGS with COPTS macro. Default COPTS?= -O2.
Lets users over-ride with makeoptions COPTS="..." in kernel config files.

Leave `mandatory' flags (like -msoft-float which on m68k enforces no
FP in kernel) in CFLAGS.

Move strip(1) flags into a separate variable, so that $STRIP can
be passed to subordinate make(1)s. Remove $TOUCH. Add HOSTED_CC,
HOSTED_CPPFLAGS, and HOSTED_CFLAGS, and use them when depending genassym.

Wrap the default definition of `S' in `.ifndef'.

Put into . Remove hooks for `config-dependent' and
`device-driver' flags.

* Add a HOSTED_C_C variable, which strips `-p', `-pg', and
`-nostdinc', and use it when building genassym.
* Use `-nostdinc' just to be sure we're self-contained.

* Define CWARNFLAGS and MKDEP in some moderately consistent fashion.
* Make S expand to an absolute path at compile time.
* Use `-S' rather than `-x' to remove debugging symbols.
* Garbage collect unused variables.
* Reverse a handful of port-specific changes that do not correspond to
the common build model and are not needed.

branches: 1.32.4;
We don't generally want to profile `genassym' (easy part of PR#2434).

Make `make depend' work for libraries.

Add -Wall -Wstrict-prototypes -Wmissing-prototypes
to the kernel build. The sparc is clean now!

Do not build vnode_if.[ch] for each kernel. Build them once, like the
various syscall sources/headers, and just compile them. From PR 2142, OK'd
by mycroft.

Define build programs with `?=', so they can be overridden with `makeoptions'.

Fix mkdep problems due to missing flags.

Use `-traditional-cpp' when building .s and .S files.

Clone these, and fix many bugs.

assym.s -> assym.h
(Some ports did this already.)

Remove `-fno-builtin'.

Compile the kernel with -Werror and -fno-builtin.

Makefile.`arch`: - Add -lcompat
- Change clean: target to be a double dep one,
so libraries can use the clean target too

Removing -DKERNEL, transition to _KERNEL has been completed

Remove -I/usr/include from `genassym' line.

Added -D_KERNEL to CFLAGS alongside each -DKERNEL.

bigtime cleanup

clean better

copyright/Id cleanup

clean vnode_if.[ch]

compile kernel with -O2

branches: 1.12.2;
vnode_if cleanup

New vnode interface.

Remove old-style profiling hack.

split sun4c/sun4m/sun4 support somewhat

compile genassym static

Some bits and pieces to make a profiled kernel (for the moment).

make make depend dependable

blow away sunos cross compilation gunk. we no longer need it,
as we are capable of compiling ourselves.

more cleanup

start to get rid of some of the hacks

New location for libkern, fixes for many paths.
+ lots of temp changes to be backed out later!
DEBUG=-g always, use gcc, link with libgcc.a, include dirs in
a weird place for my development environment.

Chris Torek's sparc port. Missing lots of things.