Commit Graph

9 Commits

Author SHA1 Message Date
Nathan Whitehorn
28b2cf37b9 Modify all FreeBSD bootloaders on PowerPC AIM (Book-S) systems to pass a
magic number to the kernel in r7 rather than the (currently unused and
irrelevant) width of the metadata pointer, which I believe was intended
for a never-used approach to the 64-bit port. This enables the kernel,
in a future commit, to switch on the cookie to distinguish a real
metadata pointer from loader(8) from garbage left in r6 by some other
boot loader.

MFC after:	3 weeks
2017-11-24 23:41:04 +00:00
Warner Losh
d927d443e1 Mark the func pointer as __dead2. It looks up loader_main, which
either aborts or exits, but never returns. Tag it as a non-returning
function rather than supply a bogus return(0) at the end of main.

CID: 1382885
Sponsored by: Netflix
2017-11-24 05:01:00 +00:00
Warner Losh
db71174436 Fix theoretical integer overflow issues. If the product here is
greater than 2^31-1, then the result will be huge. This is unlikely,
as we don't support that many sections, but out of an abundace of
caution cast to size_t so the multiplication won't overflow
mysteriously when size_t is larger than 32-bits. The resulting code
may be a smidge larger, but this isn't super-space critical code.

CID: 1194216, 1194217, 1194222, 1194223, 1265018, 1265019,1265020,
     1265021
Sponsored by: Netflix
2017-11-24 05:00:25 +00:00
Toomas Soome
a9abb85906 net_parse_rootpath() has no parameters
Add void for parameter list.
2017-11-22 10:04:09 +00:00
Toomas Soome
cdadbf0971 loader.efi: efipart does not recognize partitionless disks
Rework the block device handle check to allow more robust device
classification. This is mostly usability issue - it can be quite confusing
for user when no disks are listed with lsdev.

Add more comments about what and why is done.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D13026
2017-11-22 08:48:00 +00:00
Warner Losh
063e16324b Unbreak riscv build in universe.
riscv doesn't have -msoft-float. For the moment, just don't add
anything. There's no /boot/loader or other bootstrap contained in the
tree for riscv*. However, with real hardware coming next year, there
are plans for one, so keep building at least a minimal libsa and
ficl to prevent bitrot.

Sponsored by: Netflix
2017-11-21 19:23:20 +00:00
Warner Losh
01dd1497ec Fix gptzfsboot for cases with GELI.
HAVE_GPT isn't currently a thing, but HAVE_GELI is. Replace the former
with the latter and remove util.o from the build list (it's picked up
from libsa/libsa32, and that's OK).

Sponsored by: Netflix
2017-11-21 18:03:47 +00:00
Warner Losh
8a4217aacf Move some more common stuff up to Makefile.inc. In particular, the no
simd / no float stuff is centeralized here. Also centralise
-ffreestanding since it is specified everywhere.

This, along with a change to share/mk/bsd.cpu.mk to include -mno-avx2
in CFLAGS_NO_SIMD should fix building for newer machines (eg with
CPUTYPE=haswell) where clang was generating avx2 instructions.

Sponsored by: Netflix
2017-11-20 22:42:17 +00:00
Warner Losh
ca987d4641 Move sys/boot to stand. Fix all references to new location
Sponsored by:	Netflix
2017-11-14 23:02:19 +00:00