freebsd-dev/sys/boot/i386/loader/Makefile
Toomas Soome da8fb057e5 loader: network read rework
The current read from network is working from up to down - we have some
protocol needing the data from the network, so we build the buffer space
for that protocol, add the extra space for headers and pass this buffer
down to be filled by nif get call in hope, we have guessed the incoming
packet size right. Amazingly enough this approach mostly does work, but
not always...

So, this update does work from down to up - we allocate buffer (based
on MTU or frame size info), fill it up, and pass on for upper layers.
The obvious problem is that when we should free the buffer - if at all.

In the current implementation the upper layer will free the packet on error
or when the packet is no longer needed.

While working on the issue, the additional issue did pop up - the bios
implementation does not have generic get/put interface but is using pxe
udpsend/udpreceive instead. So the udp calls are gone and undi interface
is implemented instead. Which in turn means slight other changes as we
do not need to have duplicated pxe implementation and can just use dev_net.

To align packet content, the actual read from nic is using shifted buffer by
ETHER_ALIGN (2).

Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D10232
2017-05-06 20:32:27 +00:00

140 lines
3.2 KiB
Makefile

# $FreeBSD$
.include <src.opts.mk>
MK_SSP= no
LOADER?= loader
PROG= ${LOADER}.sym
MAN=
INTERNALPROG=
NEWVERSWHAT?= "bootstrap loader" x86
VERSION_FILE= ${.CURDIR}/../loader/version
LOADER_NET_SUPPORT?= yes
# architecture-specific loader code
SRCS= main.c conf.c vers.c
# Put LOADER_FIREWIRE_SUPPORT=yes in /etc/make.conf for FireWire/dcons support
.if defined(LOADER_FIREWIRE_SUPPORT)
CFLAGS+= -DLOADER_FIREWIRE_SUPPORT
LIBFIREWIRE= ${.OBJDIR}/../libfirewire/libfirewire.a
.endif
# Set by zfsloader Makefile
.if defined(LOADER_ZFS_SUPPORT)
CFLAGS+= -DLOADER_ZFS_SUPPORT
LIBZFSBOOT= ${.OBJDIR}/../../zfs/libzfsboot.a
.endif
.if defined(LOADER_NET_SUPPORT)
CFLAGS+= -I${.CURDIR}/../../../../lib/libstand
.endif
# Enable PXE TFTP or NFS support, not both.
.if defined(LOADER_TFTP_SUPPORT)
CFLAGS+= -DLOADER_TFTP_SUPPORT
.else
CFLAGS+= -DLOADER_NFS_SUPPORT
.endif
# Include bcache code.
HAVE_BCACHE= yes
# Enable PnP and ISA-PnP code.
HAVE_PNP= yes
HAVE_ISABUS= yes
.if ${MK_FORTH} != "no"
# Enable BootForth
BOOT_FORTH= yes
CFLAGS+= -DBOOT_FORTH -I${.CURDIR}/../../ficl -I${.CURDIR}/../../ficl/i386
.if ${MACHINE_CPUARCH} == "amd64"
LIBFICL= ${.OBJDIR}/../../ficl32/libficl.a
.else
LIBFICL= ${.OBJDIR}/../../ficl/libficl.a
.endif
.endif
.if defined(LOADER_BZIP2_SUPPORT)
CFLAGS+= -DLOADER_BZIP2_SUPPORT
.endif
.if !defined(LOADER_NO_GZIP_SUPPORT)
CFLAGS+= -DLOADER_GZIP_SUPPORT
.endif
.if defined(LOADER_NANDFS_SUPPORT)
CFLAGS+= -DLOADER_NANDFS_SUPPORT
.endif
.if !defined(LOADER_NO_GELI_SUPPORT)
CFLAGS+= -DLOADER_GELI_SUPPORT
CFLAGS+= -I${.CURDIR}/../../geli
LIBGELIBOOT= ${.OBJDIR}/../../geli/libgeliboot.a
.PATH: ${.CURDIR}/../../../opencrypto
SRCS+= xform_aes_xts.c
CFLAGS+= -I${.CURDIR}/../../.. -D_STAND
.endif
# Always add MI sources
.PATH: ${.CURDIR}/../../common
.include "${.CURDIR}/../../common/Makefile.inc"
CFLAGS+= -I${.CURDIR}/../../common
CFLAGS+= -I.
CLEANFILES= ${LOADER} ${LOADER}.bin loader.help
CFLAGS+= -Wall
LDFLAGS= -static -Ttext 0x0
# i386 standalone support library
LIBI386= ${.OBJDIR}/../libi386/libi386.a
CFLAGS+= -I${.CURDIR}/..
LIBSTAND= ${.OBJDIR}/../../libstand32/libstand.a
# BTX components
CFLAGS+= -I${.CURDIR}/../btx/lib
# Debug me!
#CFLAGS+= -g
#LDFLAGS+= -g
# Pick up ../Makefile.inc early.
.include <bsd.init.mk>
${LOADER}: ${LOADER}.bin ${BTXLDR} ${BTXKERN}
btxld -v -f aout -e ${LOADER_ADDRESS} -o ${.TARGET} -l ${BTXLDR} \
-b ${BTXKERN} ${LOADER}.bin
${LOADER}.bin: ${LOADER}.sym
strip -R .comment -R .note -o ${.TARGET} ${.ALLSRC}
loader.help: help.common help.i386
cat ${.ALLSRC} | awk -f ${.CURDIR}/../../common/merge_help.awk > ${.TARGET}
FILES= ${LOADER}
# XXX INSTALLFLAGS_loader= -b
FILESMODE_${LOADER}= ${BINMODE} -b
.if !defined(LOADER_ONLY)
.PATH: ${.CURDIR}/../../forth
.include "${.CURDIR}/../../forth/Makefile.inc"
FILES+= pcibios.4th
FILES+= loader.rc menu.rc
.endif
# XXX crt0.o needs to be first for pxeboot(8) to work
OBJS= ${BTXCRT}
DPADD= ${LIBFICL} ${LIBFIREWIRE} ${LIBZFSBOOT} ${LIBI386} ${LIBGELIBOOT} ${LIBSTAND}
LDADD= ${LIBFICL} ${LIBFIREWIRE} ${LIBZFSBOOT} ${LIBI386} ${LIBGELIBOOT} ${LIBSTAND}
.include <bsd.prog.mk>
.if ${MACHINE_CPUARCH} == "amd64"
beforedepend ${OBJS}: machine
CLEANFILES+= machine
CFLAGS+= -DLOADER_PREFER_AMD64
machine: .NOMETA
ln -sf ${.CURDIR}/../../../i386/include machine
.endif