133 lines
4.0 KiB
Makefile
133 lines
4.0 KiB
Makefile
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HAVE_ZFS= ${MK_LOADER_ZFS}
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LOADER_NET_SUPPORT?= yes
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LOADER_NFS_SUPPORT?= yes
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LOADER_TFTP_SUPPORT?= yes
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LOADER_CD9660_SUPPORT?= yes
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LOADER_EXT2FS_SUPPORT?= yes
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LOADER_MSDOS_SUPPORT?= yes
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LOADER_UFS_SUPPORT?= yes
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LOADER_GZIP_SUPPORT?= yes
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LOADER_BZIP2_SUPPORT?= yes
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.include <bsd.init.mk>
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LOADER?= loader_${LOADER_INTERP}
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PROG= ${LOADER}.sym
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INTERNALPROG=
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NEWVERSWHAT?= "bootstrap loader" x86
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VERSION_FILE= ${.CURDIR}/../loader/version
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#
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# There's 640k - 40k maximum space, less however much memory the BIOS uses. A
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# non-random survey suggests that 20k-25k is a good value for 'most' machines.
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# We also need to subtract maximum stack usage (20-25k).
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#
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# So 640k - 40k - 25k - 25k = 550k = 563,200 bytes, but use 550,000 below for
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# some extra buffer for more complex setups and/or wider BIOS lomem variation.
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#
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# Some systems use more stack or have BIOS reserve more RAM (or both), and will
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# need to set this lower in /etc/src.conf if the above buffer is too small.
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#
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# sudo dd if=/dev/mem bs=1 iseek=0x413 count=2 | hd -d
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#
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# will tell you how many kiB of lomem are available.
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#
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LOADERSIZE?= 550000 # Largest known safe size for loader.bin
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.PATH: ${BOOTSRC}/i386/loader
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# architecture-specific loader code
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SRCS= main.c conf.c vers.c chain.c gfx_fb.c 8x16.c
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CFLAGS.gfx_fb.c += -I${.CURDIR}/../libi386
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CFLAGS.gfx_fb.c += -I$(SRCTOP)/sys/teken
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CFLAGS.gfx_fb.c += -I${SRCTOP}/sys/cddl/contrib/opensolaris/common/lz4
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CFLAGS.gfx_fb.c += -I${SRCTOP}/contrib/pnglite
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CFLAGS.gfx_fb.c += -DHAVE_MEMCPY -I${SRCTOP}/sys/contrib/zlib
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# Include bcache code.
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HAVE_BCACHE= yes
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# Enable PnP and ISA-PnP code.
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HAVE_PNP= yes
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HAVE_ISABUS= yes
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.if ${MK_LOADER_ZFS} == "yes"
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CFLAGS.main.c+= -I${SYSDIR}/contrib/openzfs/include
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CFLAGS.main.c+= -I${SYSDIR}/contrib/openzfs/include/os/freebsd/zfs
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.endif
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.if exists(${.CURDIR}/help.i386)
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HELP_FILES= ${.CURDIR}/help.i386
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.endif
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HELP_FILENAME= loader.help.bios
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# Always add MI sources
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.include "${BOOTSRC}/loader.mk"
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CLEANFILES+= ${LOADER} ${LOADER}.bin 8x16.c
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ORG= 0x0
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CFLAGS+= -Wall
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LDFLAGS+= -static ${LDFLAGS_ORG} -Wl,--gc-sections
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.if ${LINKER_TYPE} == "lld" && ${LINKER_VERSION} >= 130000
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# lld 13 and higher default to garbage collecting start/stop symbols,
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# completely ruining our linker sets. For now, work around it by
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# disabling this un-feature.
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LDFLAGS+= -Wl,-z,nostart-stop-gc
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.endif
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# i386 standalone support library
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LIBI386= ${BOOTOBJ}/i386/libi386/libi386.a
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CFLAGS+= -I${BOOTSRC}/i386
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# Debug me!
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#CFLAGS+= -g
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#LDFLAGS+= -g
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8x16.c: ${SRCTOP}/contrib/terminus/ter-u16b.bdf
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vtfontcvt -f compressed-source -o ${.TARGET} ${.ALLSRC}
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${LOADER}: ${LOADER}.bin ${BTXLDR} ${BTXKERN}
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btxld -v -f aout -e ${LOADER_ADDRESS} -o ${.TARGET} -l ${BTXLDR} \
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-b ${BTXKERN} ${LOADER}.bin
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${LOADER}.bin: ${LOADER}.sym
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${STRIPBIN} -R .comment -R .note -o ${.TARGET} ${.ALLSRC}
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@set -- `ls -l ${.TARGET}` ; x=$$((${LOADERSIZE}-$$5)); \
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echo "$$x bytes available"; test $$x -ge 0
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.if ${MK_LOADER_ZFS} == "yes" && ${LOADER_INTERP} == ${LOADER_DEFAULT_INTERP}
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LINKS+= ${BINDIR}/${LOADER} ${BINDIR}/zfsloader
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.endif
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.if ${LOADER_INTERP} == ${LOADER_DEFAULT_INTERP}
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LINKS+= ${BINDIR}/${LOADER} ${BINDIR}/loader
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.endif
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FILES+= ${LOADER}
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FILESMODE_${LOADER}= ${BINMODE} -b
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# Note: crt0.o needs to be first for pxeboot(8) to work. It assumes that the
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# startup code is located at the start of the loader and will jump
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# there. Although btx is more flexible than this, the emulated boot2 environment
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# that pxeldr provides has none of that flexibility assumes an entry point of
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# 0. In addition, pxeldr and cdboot assume that it is loading an a.out file.
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#
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# We must add it to the LDFLAGS instead of the OBJS because the former won't try
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# to clean it. When it is in OBJS, this cleaning can lead to races where
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# btxcrt.o is rebuilt, but boot2 isn't, leading to errors at installation time.
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# LDFLAGS does not have this baggage and will be included first in the list of
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# files.
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LDFLAGS+= ${BTXCRT}
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DPADD= ${LDR_INTERP32} ${LIBI386} ${LIBSA32}
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LDADD= ${LDR_INTERP32} ${LIBI386} ${LIBSA32}
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.if ${MACHINE_CPUARCH} == "amd64"
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CFLAGS+= -DLOADER_PREFER_AMD64
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.endif
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.include <bsd.prog.mk>
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