diff options
Diffstat (limited to 'stand/i386/loader/Makefile')
| -rw-r--r-- | stand/i386/loader/Makefile | 51 |
1 files changed, 39 insertions, 12 deletions
diff --git a/stand/i386/loader/Makefile b/stand/i386/loader/Makefile index 571e3b2cb653..ab446d67225b 100644 --- a/stand/i386/loader/Makefile +++ b/stand/i386/loader/Makefile @@ -1,5 +1,3 @@ -# $FreeBSD$ - HAVE_ZFS= ${MK_LOADER_ZFS} LOADER_NET_SUPPORT?= yes @@ -19,17 +17,47 @@ PROG= ${LOADER}.sym INTERNALPROG= NEWVERSWHAT?= "bootstrap loader" x86 VERSION_FILE= ${.CURDIR}/../loader/version +# +# There's 640k - 40k maximum space, less however much memory the BIOS uses. A +# non-random survey suggests that 20k-25k is a good value for 'most' machines. +# We also need to subtract maximum stack usage (20-25k). +# +# So 640k - 40k - 25k - 25k = 550k = 563,200 bytes, but use 560,000 below for +# some extra buffer for more complex setups and/or wider BIOS lomem variation. +# +# Some systems use more stack or have BIOS reserve more RAM (or both), and will +# need to set this lower in /etc/src.conf if the above buffer is too small. +# +# sudo dd if=/dev/mem bs=1 iseek=0x413 count=2 | hd -d +# +# will tell you how many kiB of lomem are available. +# +LOADERSIZE?= 560000 # Largest known safe size for loader.bin .PATH: ${BOOTSRC}/i386/loader # architecture-specific loader code -SRCS= main.c conf.c vers.c chain.c gfx_fb.c 8x16.c +SRCS+= chain.c +SRCS+= conf.c +SRCS+= gfx_bios.c +SRCS+= main.c +SRCS+= vers.c + +.if ${MK_LOADER_BIOS_TEXTONLY} == "no" +SRCS+= gfx_fb.c +SRCS+= 8x16.c CFLAGS.gfx_fb.c += -I${.CURDIR}/../libi386 CFLAGS.gfx_fb.c += -I$(SRCTOP)/sys/teken CFLAGS.gfx_fb.c += -I${SRCTOP}/sys/cddl/contrib/opensolaris/common/lz4 CFLAGS.gfx_fb.c += -I${SRCTOP}/contrib/pnglite CFLAGS.gfx_fb.c += -DHAVE_MEMCPY -I${SRCTOP}/sys/contrib/zlib +CFLAGS.gfx_bios.c += -I$(SRCTOP)/sys/teken +CFLAGS.gfx_bios.c += -I${SRCTOP}/contrib/pnglite +.else +CFLAGS.gfx_bios.c += -DBIOS_TEXT_ONLY +CFLAGS.conf.c += -DBIOS_TEXT_ONLY +.endif # Include bcache code. HAVE_BCACHE= yes @@ -38,11 +66,6 @@ HAVE_BCACHE= yes HAVE_PNP= yes HAVE_ISABUS= yes -.if ${MK_LOADER_FIREWIRE} == "yes" -CFLAGS+= -DLOADER_FIREWIRE_SUPPORT -LIBFIREWIRE= ${BOOTOBJ}/i386/libfirewire/libfirewire.a -.endif - .if ${MK_LOADER_ZFS} == "yes" CFLAGS.main.c+= -I${SYSDIR}/contrib/openzfs/include CFLAGS.main.c+= -I${SYSDIR}/contrib/openzfs/include/os/freebsd/zfs @@ -51,6 +74,7 @@ CFLAGS.main.c+= -I${SYSDIR}/contrib/openzfs/include/os/freebsd/zfs .if exists(${.CURDIR}/help.i386) HELP_FILES= ${.CURDIR}/help.i386 .endif +HELP_FILENAME= loader.help.bios # Always add MI sources .include "${BOOTSRC}/loader.mk" @@ -79,12 +103,15 @@ CFLAGS+= -I${BOOTSRC}/i386 8x16.c: ${SRCTOP}/contrib/terminus/ter-u16b.bdf vtfontcvt -f compressed-source -o ${.TARGET} ${.ALLSRC} + ${LOADER}: ${LOADER}.bin ${BTXLDR} ${BTXKERN} btxld -v -f aout -e ${LOADER_ADDRESS} -o ${.TARGET} -l ${BTXLDR} \ -b ${BTXKERN} ${LOADER}.bin ${LOADER}.bin: ${LOADER}.sym ${STRIPBIN} -R .comment -R .note -o ${.TARGET} ${.ALLSRC} + @set -- `ls -l ${.TARGET}` ; x=$$((${LOADERSIZE}-$$5)); \ + echo "$$x bytes available"; test $$x -ge 0 .if ${MK_LOADER_ZFS} == "yes" && ${LOADER_INTERP} == ${LOADER_DEFAULT_INTERP} LINKS+= ${BINDIR}/${LOADER} ${BINDIR}/zfsloader @@ -98,8 +125,8 @@ FILESMODE_${LOADER}= ${BINMODE} -b # Note: crt0.o needs to be first for pxeboot(8) to work. It assumes that the # startup code is located at the start of the loader and will jump # there. Although btx is more flexible than this, the emulated boot2 environment -# that pxeloader provides has none of that flexibility because it lacks access -# to the a.out/elf headers and assumes an entry point of 0. +# that pxeldr provides has none of that flexibility assumes an entry point of +# 0. In addition, pxeldr and cdboot assume that it is loading an a.out file. # # We must add it to the LDFLAGS instead of the OBJS because the former won't try # to clean it. When it is in OBJS, this cleaning can lead to races where @@ -108,8 +135,8 @@ FILESMODE_${LOADER}= ${BINMODE} -b # files. LDFLAGS+= ${BTXCRT} -DPADD= ${LDR_INTERP32} ${LIBFIREWIRE} ${LIBI386} ${LIBSA32} -LDADD= ${LDR_INTERP32} ${LIBFIREWIRE} ${LIBI386} ${LIBSA32} +DPADD= ${LDR_INTERP32} ${LIBI386} ${LIBSA32} +LDADD= ${LDR_INTERP32} ${LIBI386} ${LIBSA32} .if ${MACHINE_CPUARCH} == "amd64" CFLAGS+= -DLOADER_PREFER_AMD64 |