MFC Loader Fixes 2017q4p7: r324844,r326089,r326926,r326440,r326484,r326494,
r326588,r326708,r326784,r326914,r327390,r328446,r326090,r326143,r326144,
r326182,r326384,r326421,r326440,r326441,r326442,r326443,r326444,r326445,
r326446,r326447,r326448,r326484,r326485,r326486,r326487,r326488,r326490,
r326491,r326492,r326493,r326494,r326495,r326504,r326507,r326509,r326584,
r326585,r326586,r326587,r326588,r326589,r326590,r326591,r326592,r326593,
r326594,r326600,r326616,r326671,r326707,r326708,r326709,r326710,r326711,
r326712,r326714,r326720,r326768,r326772,r326784,r326792,r326812,r326854,
r326855,r326856,r326858,r326886,r326887,r326914,r326926,r326927,r326960,
r326961,r326962,r326963,r327351,r327453,r327390,r327523,r327524,r326489,
r327880,r328437,r328438,r328439,r328441,r328446,r328448,r328449,r328612,
r328613,r328615

While here, undo our libfdt hack of not including <stdlib.h> if we're
compiling _STANDALONE.

r324844: When building standalone, don't define errno. Let the definition from
stand.h override. This is similar to what we do in the kernel.

r326089: loader.efi: efipart does not recognize partitionless disks

r326090: net_parse_rootpath() has no parameters

r326143: Fix theoretical integer overflow issues. If the product here is

r326144: Mark the func pointer as __dead2. It looks up loader_main, which

r326182: Modify all FreeBSD bootloaders on PowerPC AIM (Book-S) systems

r326384: Use const pointers to avoid casting away constness.

r326421: loader.efi: efipart should exclude iPXE stub block protocol

r326440: Remove stale dependency on ufsread.c

r326441: Minor flags cleanup

r326442: Cleanup CFALGS usage here

r326443: We don't need both _STAND and _STANDALONE, use the latter.

r326444: Move geli to common DO32 stuff

r326445: Fix random() and srandom() prototypes to match the standard.

r326446: Undefine _STANDALONE since this is test code.

r326447: Tweaks to the beri boot loader so that it builds w/o warnings.

r326448: Fix all warnings related to geli and ZFS support on x86.

r326484: Const poison the propname.

r326485: Delcare md_load in libofw.h. Make all prototypes match for ofw

r326486: Include machine/md_var to pick up __syncicache prototype.

r326487: Cast mdp (a vm_offset_t) to void * to match prototype.

r326488: e_entry can be smaller than a pointer. Cast it to an intptr_t

r326490: Declare our strange brand of main().

r326491: Disconnet ps3 from the build. There's too many warnings to fix.

r326492: Cast void * pointer to char * so the arg matches the %s format.

r326493: Provide a md_load64 prototype.

r326494: Mark two things as unused (since they are only sometimes used)

r326495: Now it's safe to bump WARNS to 1.

r326504: Switch to proper MK_LOADER_GELI tests.

r326507: increase maximum size of zfsboot

r326509: loader.efi: add note about iPXE into the efipart.c

r326584: When building standalone, include stand.h rather than the kernel

r326585: Include ficl.h before anything else

r326586: No need to include the userland md5.h, the kernel one is just fine.

r326587: Use the kernel relative paths, rather than the userland relative
paths

r326588: Need to include skein in the include path

r326589: Make sure we include the right path for skein.h

r326590: Prefer stdint.h to inttypes.h

r326591: This isn't NetBSD specific code. Include these for any kernel /

r326592: Don't inherit CFLAGS. This a specialized test program.

r326593: Stop building with the standard system headers.

r326594: Now that we offer a semi-sane standards-ish set of #include files,
stop hacking includes with sed.

r326600: Since this is contrib code, create an upstreamable version of my

r326616: dhcp_try_rfc1048() is not used any more

r326671: Avoid setting -Wno-tentative-definition-incomplete-type with gcc.

r326707: Add partial support signal.h functioanlity. Pull in
machine/signal.h

r326708: Remove _KERNEL hack now that errno.h does the right thing when
built standalone.

r326709: Provide implementations for iscntrl, ispunct and isgraph.

r326710: Put the files we're copying over into a few variables and clean
hings up.

r326711: Const poison a couple of interfaces.

r326712: Create interp class.

r326714: boot1.c needs EFI_ZFS_BOOT too, so add it globally.

r326720: This path belongs in ficl/Makefile, not the common defines for
users

r326768: Fix a comment to be more accurate

r326772: Fix regression with lua import

r326784: Revert part of 362772. It was causing problems for includes

r326792: Attempt to unbreak buildworld

r326812: Revert r326792, r326784, r326772, r326712

r326854: libefi: make efichar.h more usable in stand code

r326855: Cargo cut a fix for the regressions r326585 caused.

r326856: Fix comments after bump in size.

r326858: Revert r326855: Cargo cut a fix for the regressions r326585 caused.

r326886: Panic in sbrk if setheap hasn't been called yet. This is preferable
o a mysterious crash

r326887: Remove the 'mini libstand in libstand' that util.[ch] provided.

r326914: Move loader-only defines to loader.mk from defs.mk

r326926: Move loader help file definitions to being 100% inside of
loader.mk.

r326927: libficl is only ever used in a loader (never a boot) program. Move
it.

r326960: Simplify things a little. The RETURN macro isn't required.

r326961: Interact is always called with NULL. Simplify code a little

r326962: Hoist btx include stuff to i386/Makefile.inc

r326963: No need to use relative paths like this here.

r327351: Fix ubldr. uboot/lib uses defines for the loader.

r327453: Add a validbcd() routine that uses the bcd2bin_data[] array

r327390: Garbage-collect loader.ps3. It is currently disconnected from the
build and kboot replaces.

r327523: Don't clobber system LDFLAGS for beri boot loaders.

r327524: Use 'extern uint8_t' instead of 'extern void' for external symbols.

r326489: Allow this file to be used in libsa without warning...

r327880: Move getsecs() prototype to stand.h from net.h so it can be used

r328437: Split panic routine

r328438: Implement abort() as a call to panic.

r328439: Provide abs form stdlib.h.

r328441: abort() should be marked __dead2 since it won't return.

r328446: Now that exit is __dead2, we need to tag ub_exit() as __dead2.

r328448: Make exit() never return until host_exit can be written.

r328449: Tag unreachable places as such. I left the while (1); in place

r328612: Move strtold wrapper from strtol.c to its own strtold.c.

r328613: Kill copies of strtol and strtoul.

r328615: Update stand.h for changes for strto*l

PR: 223969

MFC r325834,r325997,326502: Move sys/boot to stand/

This is effectively a direct commit to stable/11, due to differences between
stable/11 and head. Changes to DTS in sys/boot/fdt/dts were often
accompanied by kernel changes. Many of these were also risc-v updates that
likely had many more dependencies to MFC.

Because of this, sys/boot/fdt/dts remains as-is while everything else in
sys/boot relocates to stand/.

r325834: Move sys/boot to stand. Fix all references to new location

r325997: Remove empty directories.

r326502: Document the sys/boot -> stand move in hier.7 and the top-level README.

MFC Loader Fixes 2017q3: r320547,r320553,r321621,r321844,r321969,r321991,
r322037,r322038,r322039,r322040,r322056,r322074,r322542,r322592,r322593,
r322896,r322923,r323671,r322930,r322931,r322932,r322933,r322934,r322935,
r322936,r322937,r322938,r322939,r322941,r323062,r323063,r323064,r323065,
r323100,r323131,r323174,r323258,r323261,r323272,r323367,r323379,r323389,
r323407,r323428,r323436,r323494,r323496,r323497,r323541,r323554,r323589,
r323707,r323867,r323885,r323886,r323895,r323896,r323897,r323905,r323906,
r323907,r323908,r323909,r323952,r323991,r324099,r324558,r326445,r326609,
r326610

This batch includes a special kludge to fix powerpc loader build; <stdlib.h>
was included after <stand.h> there, causing problems with DEBUG_MALLOC bits.
Include <stdlib.h> a little bit earlier to fix the build with the intention
of removing this when eventually libsa silently replaces stdlib.h with
stand.h.

r320547: Link EFI/uboot loaders with -znotext

r320553: Integer underflow in efipart_realstrategy when I/O starts after end
of disk

r321621: Always set the receive mask in loader.efi.

r321844: Clean up style in print_state(..) and pager_printf(..)

r321969: Fix the return types for printf and putchar to match their libc

r321991: Revert r321969

r322037: Add stpcpy and stpncpy to libstand

r322038: Add definitions and utilities for EFI drivers

r322039: Move EFI ZFS functions to libefi

r322040: Add EFI utility functions to libefi

r322056: Move EFI fmtdev functionality to libefi

r322074: libefi/time.c cstyle cleanup

r322542: loader.efi: repace XXX with real comments in trap.c

r322592: Remove unused defines.

r322593: Define proposed GUID for FreeBSD boot loader variables.

r322896: Make spinconsole platform independent and hook it up into EFI
loader

r322923: Hide length of geli passphrase during boot.

r323671: Fix language used in the r322923.

r322930: Move efi_main into efi/loader

r322931: Cleanup efi_main return type

r322932: Use the loader.efi conventions for the various EFI tables.

r322933: No need for MK_ZFS around these: they are by their nature only
active when MK_ZFS is true.

r322934: _STAND is sometimes defined on the command line. Make the define
here match.

r322935: Fix warnings due to type mismatch.

r322936: Remove useless 'static' for an enum definition.

r322937: Forward declare struct dsk to avoid warnings when building libi386.

r322938: Link in libefi for boot1

r322939: Use efi_devpath_str for debug path info.

r322941: Eliminate redunant device path matching.

r323062: Make efichar.c routines available to libefi.

r323063: boot1.efi: print more info about where boot1.efi is loaded from

r323064: Exit rather than panic for most errors.

r323065: Save where we're booted from

r323100: libstand: nfs_readlink() should return proper return code

r323131: Revert r322941: Eliminate redundant device matching functions

r323174: Fix loader bug causing too many pages allocation when bootloader
is U-Boot

r323258: ucs2len

r323261: Fix armv6 build

r323272: Be consistent and do return (1);

r323367: Mark init_chroot and init_script variables as deprecated.

r323379: It's been pointed out that init_script at least is useful w/o

r323389: loader.efi: chain loader should provide proper device handle

r323407: boot1 generate-fat: generate all templates at once

r323428: r323389 breaks the kernel build when WITHOUT_ZFS is defined in
src.conf

r323436: boot1: remove BOOT1_MAXSIZE default value

r323494: loader should support large_dnode

r323496: libstand: tftp_open() can leak pkt on error

r323497: libefi: efipart_open should check the status from disk_open

r323541: libefi: efipart_realstrategy rsize pointer may be NULL

r323554: Increase EFI boot file size frok 128k to 384k

r323589: loader: biosmem.c cstyle cleanup

r323707: loader: biosmem allocate heap just below 4GB

r323867: libefi: devicename.c cleanups

r323885: libefi: efi_devpath_match() should return bool

r323886: libefi: efipart.c should use calloc()

r323895: libefi: efi_devpath_match local len should be unsigned

r323896: r323885 did miss efilib.h update

r323897: efilib.h: typo in structure member description

r323905: libefi: pdinfo_t pd_unit and pd_open should be unsigned

r323906: libefi: efipart_strategy() should return ENXIO when there is no
media

r323907: libefi: efipart.c cstyle fix for efipart_print_common()

r323908: libefi: efipart_hdinfo_add_filepath should check strtol result

r323909: libefi: define EISA PNP constants

r323952: After the r317886 support for TFTP and NFS can be enable
simultaneously.

r323991: libefi: efipart_floppy() will should not pass acpi pointer if the
HID test fails

r324099: Compile loader as Little-Endian on PPC64/POWER8

r324558: Define prototype for exit and ensure references

r326445: Fix random() and srandom() prototypes to match the standard.

r326609: Make putenv and getenv match the userland definition

r326610: Fix random() prototype to match the system.

PR: 219000 221001 222215
Relnotes: yes ("The length of the geli passphrase is hidden during boot")

MFC efivar(8) (by imp):

List of revisions merged:
r307070
r307071
r307072
r307074
r307189
r307224
r307339
r307390
r307391
r309776
r314231
r314232
r314615
r314616
r314617
r314618
r314619
r314620
r314621
r314623
r314890
r314925
r314926
r314927
r314928
r315770
r315771

Discussed with: gjb (re), imp
Sponsored by: The FreeBSD Foundation

Share UCS2/UTF8 routines between boot loader and userland.

Move the UCS2 to UTF8 routines over into sys/boot/efi and have
libefivar grab them from there.

Sponsored by: Netflix

Create libefivar library. This library aims to provide
the same API as the GPL'd version of this library. It implements the common
Linux API for programatically manipulating UEFI environment varibales using
the UEFI Runtime Services the kernel provides. It replaces the old efi
library since it is programmed to a different interface, but retails the
CHAR16 to UTF-8 and vice versa conversion routines. The new name is to match
Linux program's expectations.

Differential Revision: https://reviews.freebsd.org/D8128
Reviewed by: kib@, wblock@, Ganael Laplanche

Introduce libefi -- a library around EFI runtime services and protocols.
This first commit brings 3 functions for enumerating, retrieving,
adding, removing and modifying EFI variables. The immediate use of these
include the insertion of a new boot option as part of the installation
process.

This library uses ioctl(2) requests implemented by io(4) to pass the
requests down through the kernel to EFI. These ioctl requests are only
implemented on ia64, so libefi is currently only enabled on ia64. The
interface is generic and io(4) on mad64/i386 can easily be taught to
handle these once EFI support has been added to the kernel there.