adapt to ${CC_WNO_ADDRESS_OF_PACKED_MEMBER}

Simplify CWARNFLAGS to use ${CC_WNO_ADDRESS_OF_PACKED_MEMBER}
which works for both clang and gcc, and remove compiler-specific
equivalents.

bsd.own.mk: rename to CC_WNO_ADDRESS_OF_PACKED_MEMBER

Provide a single variable
CC_WNO_ADDRESS_OF_PACKED_MEMBER
with options for both clang and gcc, to replace
CLANG_NO_ADDR_OF_PACKED_MEMBER
CC_NO_ADDR_OF_PACKED_MEMBER
GCC_NO_ADDR_OF_PACKED_MEMBER

Using the convention CC_compilerflag, where compilerflag
is based on the full compiler flag name.

add support for new GCC 9 warnings that may be too much to fix
right now. new address-of-packed-member and format-overflow
warnings have new GCC_NO_ADDR_OF_PACKED_MEMBER amd
GCC_NO_FORMAT_OVERFLOW variables to remove these warnings.

apply to a bunch of the tree. mostly, these are real bugs that
should be fixed, but in many cases, only by removing the 'packed'
attribute from some structure that doesn't really need it. (i
looked at many different ones, and while perhaps 60-80% were
already properly aligned, it wasn't clear to me that the uses
were always coming from sane data vs network alignment, so it
doesn't seem safe to remove packed without careful research for
each affect struct.) clang already warned (and was not erroring)
for many of these cases, but gcc picked up dozens more.

More -Wno-error=address-of-packed-member to placate clang.

branches: 1.38.14; 1.38.24;
centralize vers.c building for standalone programs.

branches: 1.37.2;
deal with PIE and SSP

branches: 1.36.2;
force -mcpu=v9 for ofwboot, which demands v9 cpus.

Simplify, get rid of manual _LP64 define.
Do not pass a SUN4U define, as that is no longer used in the relevant headers.
Instead tell the compiler we are compiling for a v9 CPU (so it internally
defines everything we need).

Support per-target AFLAGS.

Strip debug symbols from ofwboot.

The forth bootsector loading this file when booting from disk is
"simplistic" and does not skip non loadable sections. The five times
bigger file with debug info overruns some important memory contents
with some firmware versions otherwise.

branches: 1.32.4; 1.32.6;
Add empty LIBCRTI= as LIBCRT0 to build sa programs without installed DESTDIR.

XXX: probabry we should have bsd.saprog.mk or something.

Add support for running ofwboot on sun4v. Please note that the kernel on sun4v will be loaded properly but when the kernel takes over it will crash immediately since the kernel is not sun4v ready yet

Use <bsd.klinks.mk>

branches: 1.29.4; 1.29.14; 1.29.18;
WARNSfy and fix dumb bugs noticed by warnings.

Redo previous.
bsd.own.mk must be included after NOMAN=.

Drop bootprog_maker (formerly enabled by -M) and bootprog_date (formerly
disabled by -D) from the output of newvers_stand.sh. Change -D to the
inverted logic, so that it adds the date to bootprog_rev in ().

Change all platforms accordingly. -D is added if MKREPRO is not yes and
wasn't present before. Platforms that didn't use -D don't depend on
MKREPRO now either.

branches: 1.26.2;
Move SPARC and SPARC64 to modern CPP. Update UPDATING note for this and
Alpha.

branches: 1.25.2;
factor out the floppy detection code.

Introduce .WAIT into the cleandir rule for blasting the libsa/libkern/etc.
trees, because it can race with the libsa/libkern/etc. makefiles' own
cleandir rules. I think I've found all of the uses of the offending idiom...
Closes PR 43360.

Add support for /boot.cfg. Implement a single command for now: override
the boot partition, which will be used for bootable CDs. Add cd9660
support.

branches: 1.22.2; 1.22.4;
Add src/common/include to -Ipath for proplib(3) so that build works
even without installed DESTDIR.

branches: 1.21.20;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

Enable booting from news Solaris ufs partitions.

branches: 1.19.2;
Rename the option to enable ISO 9660 file system support from ..._HSFS
to ..._CD9660.

branches: 1.18.28; 1.18.36; 1.18.46; 1.18.48;
Alter sparc64 bootstrap:

- Map kernel with permanent 4MB pages to ease kernel's life
- Pass mappings down to the kernel as part of bootinfo structure
- Try to detect whether kernel is aware of the new boot scheme or not and
in the former case map the kernel using OpenFirmware and do not pass
bootinfo structure
- Provide -C switch to force compatibility mode if autodetection fails
- While on this, fix PR #25763: If load of default kernel fails, try one by
one those specified in compiled-in list

Much inspired by the bootloader of FreeBSD, with some imported code from there.

Use the same code to create machine, sparc and sparc64 symlinks that
../Makefile.buildboot uses.

Add an explicit -I for sys/lib/libsa so that we find the <iodesc.h>
requested inside sys/lib/libsa/net.h
This used to be "iodesc.h" but another build needs to override it with
a local copy.

branches: 1.15.2;
merge ktrace-lwp.

Turn on dhcp support.

branches: 1.13.10; 1.13.12;
Define LIB{CRT0,C,CRTBEGIN,CRTEND} as nothing, we don't need to link
against them.

Ignore errors on some rm -rf's for platforms that aren't quite
POSIX compliant
and return errors on r/o source (FreeBSD) for -rf. Fixes PR#25022

branches: 1.11.2;
Create a symlink for <sparc/...> include paths as well, the new openfirm.h
needs it.

merge ultrasparc ofwboot / ofwboot.net.

Use ${HOST_SH} instead of `sh'.

If necessary, pull in <bsd.sys.mk> to get the definition of HOST_SH;
Makefiles that pull in one of (most of) <bsd.*.mk> will get this anyway.

branches: 1.8.2;
Add -ffreestanding.

Make sure to remove lib directories.

Make sure to remove proper link.

MKfoo=no -> NOfoo

Don't declare which exec formats to support in loadfile_machdep.h.
Instead, give each user of loadfile() control over which exec formats
it wants to support.

branches: 1.3.4;
objcopy -> ${OBJCOPY}; remove redundant definitions of OBJCOPY?= (it is
now in bsd.own.mk).

branches: 1.2.2; 1.2.4;
this is a sparc64 program. so -DSUN4U, machine -> sparc64. cleanup.

branches: 1.1.2; 1.1.4;
move ofwboot & bootblk here; add a Makefile to build ofwboot.net