- Now that bsd.prog.mk deals with programs linked with -nostdlib
better, and has a notion of an "internal" program, use PROG
where possible. This has a good impact on the contents of
.depend files and causes programs to be linked with cc(1).
XXX: boot2 couldn't be converted as it's actually two programs.
Tested on: i386, amd64
- do not use PROG for what's not a real C program,
- use sys.mk transformation rules where possible,
- only create the "machine" symlink on AMD64,
- removed MAINTAINER lines in individual makefiles,
- added the LIBSTAND defitinion to <bsd.libnames.mk>,
- somewhat better contents in .depend files.
Tested on: i386, amd64
Prodded by: bde
value as reserved for internal use in boot blocks, because RB_PAUSE
broke binary compatibility by usurping the RB_DUAL flag. Probably no
one except me has boot blocks for which this matters, since most boot
blocks based on biosboot including pc98's boot2 can't boot elf kernels,
and /boot/loader doesn't properly pass flags set by the previous stage.
reboot.h:
Also mark the historical RB_PROBEKBD flag (0x80000) as reserved for
internal use in boot blocks.
boot2.c:
Added comments to inhibit usurping of other flags.
Approved by: guido, imp
MFC after: 1 week
commit broke the world because it depended on namespace pollution that
was only in my version of <machine/bootinfo.h>. The include was removed
in rev.1.63 after the last reference to it went away in rev.1.61.
comment about this flag in rev.1.61. It is not historical like the
comment said; it is the flag that says that most of what is laboriously
put in the bootinfo struct is actually there. Newer kernels were
bootable by even the broken boot2 without losing anything except the
symbol table, but older kernels need at least the memory sizes.
Restoring the "|" with RB_BOOTINFO that was lost in rev.1.43 costs 5
bytes. The fix can be done in only 4 bytes by fixing some code that
was removed in rev.1.61 (put RB_BOOTINFO back in in the initial value
of "opts" and fix RBX_MASK to not clobber it.)
boot time. Instead, read it a sector at a time. While this sounds
like a significant slowdown, I've not been able to measure any
signficant difference.
Submitted by: luigi
Reviewed by: jhb, sam (both a while ago)
MFC After: 3 days
Move the remaining bits of <sys/diskslice.h> to <i386/include/bootinfo.h>
Move i386/pc98 specific bits from <sys/reboot.h> to
<i386/include/bootinfo.h> as well.
Adjust includes in sys/boot accordingly.
o Revision 1.38 introduced the -n flag. It conflicted with the
RB_BOOTINFO flag, so was in effect always on. Change the -n flag to
be bit 0x1c instead of 0x1f. This also had the consequence that a mal-formed
/boot.config would render the system unbootable because the user was
unable to enter anything at all on the command line.
o Remove the initialization of opt to be RB_BOOTINFO since we filter that bit
out and do not otherwise use it.
Reviewed by: jhb
MFC after: 3 days
the last second before the commit.
# likely we can remove this hack now that gcc generates better aligned code
# in the align to word case.
Noticed by: bde
subset of Peter's patchs that are believed to be safe.
Makefile tweaks:
o -fomit-frame-pointer
o Change default to building both UFS1 and UFS2 bootblocks.
Lots of boot2 tweaks:
o lookup is only ever called with kname, so use it directly.
o inline memsize
o getstr are only ever called with cmd, so hardware that.
o tweaks to the parsing code to test after the conversion rather than
before since we tested after anyways.
o eliminate support for %x in printf.
o eliminate a few bytes in printfs.
o Tweak the boot banner.
o eliminate support for wd and " " devices (I might add wd back to
keep bde happy).
o eliminate support for a few arguments.
This takes us from -162 bytes free to 67 bytes free.
I've tested this only on a few systems, so be careful when updating to
this change.
Submitted by: peter, imp, ian
it possible to make UFS1_ONLY and UFS2_ONLY versions which fit inside the
traditional 16 sectors.
Remove assorted now unneeded hackery.
UFS1_AND_UFS2 still needs another 150 bytes to work, and that is probably
not within our reach, ever.
Conditionalize the "XX bytes left" checks reference on UFS1/UFS12.
Conditionally build the necessary 64bit math for boot2 if UFS12.
Sponsored by: DARPA & NAI Labs.
Load 4 sectors more than we used to. This is harmless overhead for
the UFS1_ONLY case, but sufficient for boot2(UFS1+2).
Sponsored by: DARPA & NAI Labs
Many recent machine have a broken INT 12H (Get base memory size)
implementation and boot program stops if INT 12H is called.
This commit should solve the problem at very first step of FreeBSD
installation occurred on newer some machines.
Reviewed by: bde, jhb
MFC after: 1 week
Peter had repocopied sys/disklabel.h to sys/diskpc98.h and sys/diskmbr.h.
These two new copies are still intact copies of disklabel.h and
therefore protected by #ifndef _SYS_DISKLABEL_H_ so #including them
in programs which already include <sys.disklabel.h> is currently a
no-op.
This commit adds a number of such #includes.
Once I have verified that I have fixed all the places which need fixing,
I will commit the updated versions of the three #include files.
Sponsored by: DARPA & NAI Labs.
