Don't check if an array is (not) NULL, check if the string is empty.

branches: 1.25.22; 1.25.40;
kill extra whitespaces
reviewed by tsutsui@

We need an explicit include of <sys/exec_aout.h> here as well.

- use -Os to shrink bianries
- remove local shrinked memcpy() from bootxx.c bacause
now it's identical with __OPTIMIZE_SIZE__ libsa one
derived from src/common/lib/libc/string/bcopy.c.

Tested netboot from le0 and bootxx + boot from sd0 on SS1+.

Now that the stand/ code was converted to use memcpy(), the private
implementation of bcopy() needs to become memcpy() as well. The
simpler local implementation is needed so that the boot code doesn't
overflow the available space.

bcopy -> memcpy

branches: 1.20.8; 1.20.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.19.40; 1.19.42; 1.19.44;
Make the loadboot() declaration consistent, use char* because it
does pointer arithmetic on the argument.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.17.10;
De-__P. ANSIify.

Same object code is generated (except in prf.c, where putchar argument
type was changed to int to match the prototype and one instrcution
changes accordingly).

strategy() in ofdev.c was not ANSIified in this sweep, b/c that
changes code generated at call sites!

Nothing in this file needs <sys/time.h>

Get strcpy prototype from libkern.h, not string.h

branches: 1.14.4; 1.14.8; 1.14.14;
merge ktrace-lwp.

branches: 1.13.2;
constify

Ooops, missed this file when changing the bootdevice signature.
Pointed out by Juergen Hannken-Illjes.

branches: 1.11.10; 1.11.16; 1.11.18; 1.11.24;
bootblock.h:
- unify sparc_bbinfo (1064 bytes, with 256 block entries)
and sun68k_bbinfo (296 byte, with 64 block entries)
into shared_bbinfo (512 bytes, with 118 block entries),
which will be also shared by future bbinfo-using platforms
(including macppc)
- add datestamp to *_BBINFO_MAGIC strings, to prevent installboot vs
bootxx version skew.
- add macppc support

*/bootxx.c:
- migrate to new shared_bbinfo structure

installboot:
- add macppc support (still needs applepartmap support and testing)
- improve and add some more warnings & errors to installboot
- implement shared_bbinfo_clearboot() and shared_bbinfo_setboot(), which
perform the majority of the work for bbinfo-using back-ends
(rather than replicating that across multiple back-ends).

convert to <sys/bootblock.h>

Rather than using nlist(3), use a magic structure with a magic
number that installboot(8) can search for. Suggested by cgd@netbsd.org.

branches: 1.8.8; 1.8.10; 1.8.12;
Fix doubled 'the's in comments.

Include <sys/exec.h> instead of <a.out.h>/

branches: 1.6.2; 1.6.4; 1.6.8;
Initialize the heap (for alloc()) explicitly, since the `end' symbol
is not necessarily double-word aligned.

Casts for PROM_LOADADDR which is not casted anymore.

branches: 1.4.4;
Use PROMLIB to streamline this code. This also provides the bulk of
Open Firmware boot code.

Assign my copyrights to TNF.

Call the device close routine when we're done reading.

branches: 1.1.4;
Completely rearrange SPARC boot code, modeling it after alpha and hp300
ports' boot programs. Also added support for loading gzip'd kernels,
useful for booting from floppy. From Jason R. Thorpe <thorpej@nas.nasa.gov>,
tested by Matthew Green <mrg@eterna.com.au> and Erik Fair <fair@clock.org>.