918314631b
gpt and zfs boot blocks are not nearly as size-constrained as boot2 from which they inherited their current optimization and anti-optimization options. As such the current options do not provide any benefit, but make debugging of the code much harder. Also, it has been demonstrated that combination of -mrtd and -fno-unit-at-a-time may result in mis-compilation of the boot code with the current base gcc. Additionally, intermediate assembly file filtering is removed for zfsboot. The new boot blocks are all compile- and boot- tested using qemu. gptzfsboot is tested with real hardware. Reported by: Peter Jeremy <peterjeremy@acm.org> [miscompilation] Discussed with: bde, jhb Tested by: Sebastian Chmielewski <chmielsster@gmail.com> [gptzfsboot] Approved by: re (kib) MFC after: 3 weeks
82 lines
2.0 KiB
Makefile
82 lines
2.0 KiB
Makefile
# $FreeBSD$
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.PATH: ${.CURDIR}/../boot2 ${.CURDIR}/../common ${.CURDIR}/../../common
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FILES= gptboot
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NM?= nm
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BOOT_COMCONSOLE_PORT?= 0x3f8
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BOOT_COMCONSOLE_SPEED?= 9600
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B2SIOFMT?= 0x3
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REL1= 0x700
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ORG1= 0x7c00
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ORG2= 0x0
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# Decide level of UFS support.
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GPTBOOT_UFS?= UFS1_AND_UFS2
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#GPTBOOT_UFS?= UFS2_ONLY
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#GPTBOOT_UFS?= UFS1_ONLY
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CFLAGS= -DBOOTPROG=\"gptboot\" \
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-O1 \
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-DGPT \
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-D${GPTBOOT_UFS} \
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-DSIOPRT=${BOOT_COMCONSOLE_PORT} \
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-DSIOFMT=${B2SIOFMT} \
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-DSIOSPD=${BOOT_COMCONSOLE_SPEED} \
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-I${.CURDIR}/../../common \
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-I${.CURDIR}/../common \
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-I${.CURDIR}/../btx/lib -I. \
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-I${.CURDIR}/../boot2 \
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-I${.CURDIR}/../../.. \
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-Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
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-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
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-Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \
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-Winline --param max-inline-insns-single=100
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.if ${CC:T:Mclang} == "clang"
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# XXX: clang integrated-as doesn't grok .codeNN directives yet
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CFLAGS+= ${.IMPSRC:T:Mgptldr.S:C/^.+$/-no-integrated-as/}
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.endif
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LDFLAGS=-static -N --gc-sections
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# Pick up ../Makefile.inc early.
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.include <bsd.init.mk>
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CLEANFILES= gptboot
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gptboot: gptldr.bin gptboot.bin ${BTXKERN}
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btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l gptldr.bin \
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-o ${.TARGET} gptboot.bin
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CLEANFILES+= gptldr.bin gptldr.out gptldr.o
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gptldr.bin: gptldr.out
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objcopy -S -O binary gptldr.out ${.TARGET}
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gptldr.out: gptldr.o
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${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} gptldr.o
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CLEANFILES+= gptboot.bin gptboot.out gptboot.o sio.o gpt.o crc32.o drv.o \
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cons.o util.o
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gptboot.bin: gptboot.out
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objcopy -S -O binary gptboot.out ${.TARGET}
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gptboot.out: ${BTXCRT} gptboot.o sio.o gpt.o crc32.o drv.o cons.o util.o
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${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC} ${LIBSTAND}
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gptboot.o: ${.CURDIR}/../../common/ufsread.c
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.if ${MACHINE_CPUARCH} == "amd64"
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beforedepend gptboot.o: machine
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CLEANFILES+= 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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.include <bsd.prog.mk>
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