48a0b96a50
things over floppy size limits, I can exclude it for release builds or something like that. Most of the changes are to get the load_elf.c file into a seperate elf32_ or elf64_ namespace so that you can have two ELF loaders present at once. Note that for 64 bit kernels, it actually starts up the kernel already in 64 bit mode with paging enabled. This is really easy because we have a known minimum feature set. Of note is that for amd64, we have to pass in the bios int 15 0xe821 memory map because once in long mode, you absolutely cannot make VM86 calls. amd64 does not use 'struct bootinfo' at all. It is a pure loader metadata startup, just like sparc64 and powerpc. Much of the infrastructure to support this was adapted from sparc64.
50 lines
1.2 KiB
Makefile
50 lines
1.2 KiB
Makefile
# $FreeBSD$
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#
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LIB= i386
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INTERNALLIB= true
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SRCS= biosacpi.c bioscd.c biosdisk.c biosmem.c biospnp.c \
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biospci.c biossmap.c bootinfo.c bootinfo32.c bootinfo64.c \
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comconsole.c devicename.c elf32_freebsd.c \
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elf64_freebsd.c gatea20.c \
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i386_copy.c i386_module.c nullconsole.c pxe.c pxetramp.s \
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time.c vidconsole.c amd64_tramp.S
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CFLAGS+= -ffreestanding
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BOOT_COMCONSOLE_PORT?= 0x3f8
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CFLAGS+= -DCOMPORT=${BOOT_COMCONSOLE_PORT}
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BOOT_COMCONSOLE_SPEED?= 9600
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CFLAGS+= -DCOMSPEED=${BOOT_COMCONSOLE_SPEED}
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.ifdef(BOOT_BIOSDISK_DEBUG)
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# Make the disk code more talkative
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CFLAGS+= -DDISK_DEBUG
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.endif
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# Include simple terminal emulation (cons25-compatible)
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CFLAGS+= -DTERM_EMU
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CFLAGS+= -I${.CURDIR}/../../common -I${.CURDIR}/../btx/lib \
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-I${.CURDIR}/../../../contrib/dev/acpica \
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-I${.CURDIR}/../../.. -I.
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# the location of libstand
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CFLAGS+= -I${.CURDIR}/../../../../lib/libstand/
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# Make "machine" required for all objects
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# (based on the more complete case in sys/i386/boot/Makefile.inc)
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${SRCS:M*.c:R:S/$/.o/g}: machine
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# If it's not there, don't consider it a target
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.if exists(${.CURDIR}/../../../i386/include)
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beforedepend ${OBJS}: machine
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machine:
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ln -sf ${.CURDIR}/../../../i386/include machine
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.endif
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CLEANFILES+= machine
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.include <bsd.lib.mk>
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