7939325215
(for example, a large mfsroot). Note that for EFI the kernel and modules (as well as other metadata files such as splash screens or memory disk images) are loaded into a statically-sized staging area. When the EFI loader exits it copies this staging area down to the location the kernel expects to run at. - Add bounds checking to the copy routines to fail attempts to access memory outside of the staging area. Previously loading a combined kernel + modules larger than the staging size (32MB) would overflow the staging area trashing whatever memory was afterwards. Under Intel's OVMF firmware for qemu this resulted in fatal faults in the firmware itself. Now the attempt will fail with ENOMEM. - Allow the staging area size to be configured at compile time via an EFI_STAGING_SIZE variable in src.conf or on the command line. It accepts the size of the staging area in MB. The default size remains 32MB. MFC after: 2 weeks Sponsored by: Cisco Systems, Inc.
106 lines
2.3 KiB
Makefile
106 lines
2.3 KiB
Makefile
# $FreeBSD$
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MAN=
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.include <src.opts.mk>
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# In-tree GCC does not support __attribute__((ms_abi)).
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.if ${COMPILER_TYPE} != "gcc"
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MK_SSP= no
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PROG= loader.sym
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INTERNALPROG=
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# architecture-specific loader code
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SRCS= autoload.c \
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bootinfo.c \
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conf.c \
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copy.c \
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devicename.c \
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elf64_freebsd.c \
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framebuffer.c \
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main.c \
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reloc.c \
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vers.c
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SRCS+= amd64_tramp.S \
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start.S
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CFLAGS+= -fPIC
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CFLAGS+= -I.
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CFLAGS+= -I${.CURDIR}/../../efi/include
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CFLAGS+= -I${.CURDIR}/../../efi/include/${MACHINE_CPUARCH}
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CFLAGS+= -I${.CURDIR}/../../../contrib/dev/acpica/include
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CFLAGS+= -I${.CURDIR}/../../..
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.if ${MK_FORTH} != "no"
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BOOT_FORTH= yes
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CFLAGS+= -DBOOT_FORTH
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CFLAGS+= -I${.CURDIR}/../../ficl
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CFLAGS+= -I${.CURDIR}/../../ficl/${MACHINE_CPUARCH}
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LIBFICL= ${.OBJDIR}/../../ficl/libficl.a
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.endif
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# Include bcache code.
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HAVE_BCACHE= yes
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.if defined(EFI_STAGING_SIZE)
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CFLAGS+= -DEFI_STAGING_SIZE=${EFI_STAGING_SIZE}
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.endif
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# Always add MI sources
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.PATH: ${.CURDIR}/../../common
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.include "${.CURDIR}/../../common/Makefile.inc"
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CFLAGS+= -I${.CURDIR}/../../common
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FILES= loader.efi
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FILESMODE_loader.efi= ${BINMODE}
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LDSCRIPT= ${.CURDIR}/ldscript.${MACHINE_CPUARCH}
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LDFLAGS= -Wl,-T${LDSCRIPT} -Wl,-Bsymbolic -shared -Wl,-znocombreloc
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CLEANFILES= vers.c loader.efi
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NEWVERSWHAT= "EFI loader" ${MACHINE_CPUARCH}
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vers.c: ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
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sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version ${NEWVERSWHAT}
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OBJCOPY?= objcopy
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OBJDUMP?= objdump
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.if ${MACHINE_CPUARCH} == "amd64"
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EFI_TARGET= efi-app-x86_64
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.else
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EFI_TARGET= efi-app-ia32
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.endif
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loader.efi: loader.sym
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if [ `${OBJDUMP} -t ${.ALLSRC} | fgrep '*UND*' | wc -l` != 0 ]; then \
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${OBJDUMP} -t ${.ALLSRC} | fgrep '*UND*'; \
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exit 1; \
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fi
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${OBJCOPY} -j .text -j .sdata -j .data \
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-j .dynamic -j .dynsym -j .rel.dyn \
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-j .rela.dyn -j .reloc -j .eh_frame -j set_Xcommand_set \
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--output-target=${EFI_TARGET} ${.ALLSRC} ${.TARGET}
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LIBEFI= ${.OBJDIR}/../../efi/libefi/libefi.a
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DPADD= ${LIBFICL} ${LIBEFI} ${LIBSTAND} ${LDSCRIPT}
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LDADD= ${LIBFICL} ${LIBEFI} ${LIBSTAND}
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.endif # ${COMPILER_TYPE} != "gcc"
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.include <bsd.prog.mk>
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beforedepend ${OBJS}: machine x86
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CLEANFILES+= machine x86
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machine:
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ln -sf ${.CURDIR}/../../../amd64/include machine
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x86:
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ln -sf ${.CURDIR}/../../../x86/include x86
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