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483d953a86
freebsd-nq/share/mk/src.opts.mk
John Baldwin 483d953a86 Initial support for bhyve save and restore. 
Save and restore (also known as suspend and resume) permits a snapshot
to be taken of a guest's state that can later be resumed.  In the
current implementation, bhyve(8) creates a UNIX domain socket that is
used by bhyvectl(8) to send a request to save a snapshot (and
optionally exit after the snapshot has been taken).  A snapshot
currently consists of two files: the first holds a copy of guest RAM,
and the second file holds other guest state such as vCPU register
values and device model state.

To resume a guest, bhyve(8) must be started with a matching pair of
command line arguments to instantiate the same set of device models as
well as a pointer to the saved snapshot.

While the current implementation is useful for several uses cases, it
has a few limitations.  The file format for saving the guest state is
tied to the ABI of internal bhyve structures and is not
self-describing (in that it does not communicate the set of device
models present in the system).  In addition, the state saved for some
device models closely matches the internal data structures which might
prove a challenge for compatibility of snapshot files across a range
of bhyve versions.  The file format also does not currently support
versioning of individual chunks of state.  As a result, the current
file format is not a fixed binary format and future revisions to save
and restore will break binary compatiblity of snapshot files.  The
goal is to move to a more flexible format that adds versioning,
etc. and at that point to commit to providing a reasonable level of
compatibility.  As a result, the current implementation is not enabled
by default.  It can be enabled via the WITH_BHYVE_SNAPSHOT=yes option
for userland builds, and the kernel option BHYVE_SHAPSHOT.

Submitted by:	Mihai Tiganus, Flavius Anton, Darius Mihai
Submitted by:	Elena Mihailescu, Mihai Carabas, Sergiu Weisz
Relnotes:	yes
Sponsored by:	University Politehnica of Bucharest
Sponsored by:	Matthew Grooms (student scholarships)
Sponsored by:	iXsystems
Differential Revision:	https://reviews.freebsd.org/D19495
2020-05-05 00:02:04 +00:00

521 lines
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Makefile
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# $FreeBSD$
#
# Option file for FreeBSD /usr/src builds.
#
# Users define WITH_FOO and WITHOUT_FOO on the command line or in /etc/src.conf
# and /etc/make.conf files. These translate in the build system to MK_FOO={yes,no}
# with sensible (usually) defaults.
#
# Makefiles must include bsd.opts.mk after defining specific MK_FOO options that
# are applicable for that Makefile (typically there are none, but sometimes there
# are exceptions). Recursive makes usually add MK_FOO=no for options that they wish
# to omit from that make.
#
# Makefiles must include bsd.mkopt.mk before they test the value of any MK_FOO
# variable.
#
# Makefiles may also assume that this file is included by src.opts.mk should it
# need variables defined there prior to the end of the Makefile where
# bsd.{subdir,lib.bin}.mk is traditionally included.
#
# The old-style YES_FOO and NO_FOO are being phased out. No new instances of them
# should be added. Old instances should be removed since they were just to
# bridge the gap between FreeBSD 4 and FreeBSD 5.
#
# Makefiles should never test WITH_FOO or WITHOUT_FOO directly (although an
# exception is made for _WITHOUT_SRCONF which turns off this mechanism
# completely inside bsd.*.mk files).
#
.if !target(__<src.opts.mk>__)
__<src.opts.mk>__:
.include <bsd.own.mk>
#
# Define MK_* variables (which are either "yes" or "no") for users
# to set via WITH_*/WITHOUT_* in /etc/src.conf and override in the
# make(1) environment.
# These should be tested with `== "no"' or `!= "no"' in makefiles.
# The NO_* variables should only be set by makefiles for variables
# that haven't been converted over.
#
# These options are used by the src builds. Those listed in
# __DEFAULT_YES_OPTIONS default to 'yes' and will build unless turned
# off. __DEFAULT_NO_OPTIONS will default to 'no' and won't build
# unless turned on. Any options listed in 'BROKEN_OPTIONS' will be
# hard-wired to 'no'. "Broken" here means not working or
# not-appropriate and/or not supported. It doesn't imply something is
# wrong with the code. There's not a single good word for this, so
# BROKEN was selected as the least imperfect one considered at the
# time. Options are added to BROKEN_OPTIONS list on a per-arch basis.
# At this time, there's no provision for mutually incompatible options.
__DEFAULT_YES_OPTIONS = \
ACCT \
ACPI \
APM \
AT \
ATM \
AUDIT \
AUTHPF \
AUTOFS \
BHYVE \
BINUTILS \
BLACKLIST \
BLUETOOTH \
BOOT \
BOOTPARAMD \
BOOTPD \
BSD_CPIO \
BSDINSTALL \
BSNMP \
BZIP2 \
CALENDAR \
CAPSICUM \
CAROOT \
CASPER \
CCD \
CDDL \
CLANG \
CLANG_BOOTSTRAP \
CLANG_IS_CC \
CPP \
CROSS_COMPILER \
CRYPT \
CUSE \
CXX \
CXGBETOOL \
DIALOG \
DICT \
DMAGENT \
DYNAMICROOT \
EE \
EFI \
ELFTOOLCHAIN_BOOTSTRAP \
EXAMPLES \
FDT \
FILE \
FINGER \
FLOPPY \
FMTREE \
FORTH \
FP_LIBC \
FREEBSD_UPDATE \
FTP \
GAMES \
GDB \
GNU_DIFF \
GNU_GREP \
GOOGLETEST \
GPIO \
HAST \
HTML \
HYPERV \
ICONV \
INET \
INET6 \
INETD \
IPFILTER \
IPFW \
ISCSI \
JAIL \
KDUMP \
KVM \
LDNS \
LDNS_UTILS \
LEGACY_CONSOLE \
LIBCPLUSPLUS \
LIBPTHREAD \
LIBTHR \
LLD \
LLD_BOOTSTRAP \
LLD_IS_LD \
LLVM_ASSERTIONS \
LLVM_COV \
LLVM_TARGET_ALL \
LOADER_GELI \
LOADER_LUA \
LOADER_OFW \
LOADER_UBOOT \
LOCALES \
LOCATE \
LPR \
LS_COLORS \
LZMA_SUPPORT \
MAIL \
MAILWRAPPER \
MAKE \
MLX5TOOL \
NDIS \
NETCAT \
NETGRAPH \
NLS_CATALOGS \
NS_CACHING \
NTP \
NVME \
OFED \
OPENSSL \
PAM \
PF \
PKGBOOTSTRAP \
PMC \
PORTSNAP \
PPP \
QUOTAS \
RADIUS_SUPPORT \
RBOOTD \
RESCUE \
ROUTED \
SENDMAIL \
SERVICESDB \
SETUID_LOGIN \
SHARED_TOOLCHAIN \
SHAREDOCS \
SOURCELESS \
SOURCELESS_HOST \
SOURCELESS_UCODE \
STATS \
SVNLITE \
SYSCONS \
SYSTEM_COMPILER \
SYSTEM_LINKER \
TALK \
TCP_WRAPPERS \
TCSH \
TELNET \
TEXTPROC \
TFTP \
UNBOUND \
USB \
UTMPX \
VI \
VT \
WIRELESS \
WPA_SUPPLICANT_EAPOL \
ZFS \
LOADER_ZFS \
ZONEINFO
__DEFAULT_NO_OPTIONS = \
BEARSSL \
BHYVE_SNAPSHOT \
BSD_GREP \
CLANG_EXTRAS \
DTRACE_TESTS \
EXPERIMENTAL \
GNU_GREP_COMPAT \
HESIOD \
LIBSOFT \
LOADER_FIREWIRE \
LOADER_FORCE_LE \
LOADER_VERBOSE \
LOADER_VERIEXEC_PASS_MANIFEST \
OFED_EXTRA \
OPENLDAP \
REPRODUCIBLE_BUILD \
RPCBIND_WARMSTART_SUPPORT \
SORT_THREADS \
SVN \
ZONEINFO_LEAPSECONDS_SUPPORT \
# LEFT/RIGHT. Left options which default to "yes" unless their corresponding
# RIGHT option is disabled.
__DEFAULT_DEPENDENT_OPTIONS= \
CLANG_FULL/CLANG \
LOADER_VERIEXEC/BEARSSL \
LOADER_EFI_SECUREBOOT/LOADER_VERIEXEC \
LOADER_VERIEXEC_VECTX/LOADER_VERIEXEC \
VERIEXEC/BEARSSL \
# MK_*_SUPPORT options which default to "yes" unless their corresponding
# MK_* variable is set to "no".
#
.for var in \
BLACKLIST \
BZIP2 \
INET \
INET6 \
KERBEROS \
KVM \
NETGRAPH \
PAM \
TESTS \
WIRELESS
__DEFAULT_DEPENDENT_OPTIONS+= ${var}_SUPPORT/${var}
.endfor
#
# Default behaviour of some options depends on the architecture. Unfortunately
# this means that we have to test TARGET_ARCH (the buildworld case) as well
# as MACHINE_ARCH (the non-buildworld case). Normally TARGET_ARCH is not
# used at all in bsd.*.mk, but we have to make an exception here if we want
# to allow defaults for some things like clang to vary by target architecture.
# Additional, per-target behavior should be rarely added only after much
# gnashing of teeth and grinding of gears.
#
.if defined(TARGET_ARCH)
__T=${TARGET_ARCH}
.else
__T=${MACHINE_ARCH}
.endif
# All supported backends for LLVM_TARGET_XXX
__LLVM_TARGETS= \
aarch64 \
arm \
mips \
powerpc \
riscv \
x86
__LLVM_TARGET_FILT= C/(amd64|i386)/x86/:C/powerpc.*/powerpc/:C/armv[67]/arm/:C/riscv.*/riscv/:C/mips.*/mips/
.for __llt in ${__LLVM_TARGETS}
# Default enable the given TARGET's LLVM_TARGET support
.if ${__T:${__LLVM_TARGET_FILT}} == ${__llt}
__DEFAULT_YES_OPTIONS+= LLVM_TARGET_${__llt:${__LLVM_TARGET_FILT}:tu}
# aarch64 needs arm for -m32 support.
.elif ${__T} == "aarch64" && ${__llt:Marm*} != ""
__DEFAULT_DEPENDENT_OPTIONS+= LLVM_TARGET_ARM/LLVM_TARGET_AARCH64
# Default the rest of the LLVM_TARGETs to the value of MK_LLVM_TARGET_ALL.
.else
__DEFAULT_DEPENDENT_OPTIONS+= LLVM_TARGET_${__llt:${__LLVM_TARGET_FILT}:tu}/LLVM_TARGET_ALL
.endif
.endfor
__DEFAULT_NO_OPTIONS+=LLVM_TARGET_BPF
.include <bsd.compiler.mk>
# In-tree binutils/gcc are older versions without modern architecture support.
.if ${__T} == "aarch64" || ${__T:Mriscv*} != ""
BROKEN_OPTIONS+=BINUTILS BINUTILS_BOOTSTRAP GDB
.endif
.if ${__T} == "amd64" || ${__T} == "i386"
__DEFAULT_YES_OPTIONS+=BINUTILS_BOOTSTRAP
.else
__DEFAULT_NO_OPTIONS+=BINUTILS_BOOTSTRAP
.endif
.if ${__T:Mriscv*} != ""
BROKEN_OPTIONS+=OFED
.endif
.if ${__T} == "aarch64" || ${__T} == "amd64" || ${__T} == "i386"
__DEFAULT_YES_OPTIONS+=LLDB
.else
__DEFAULT_NO_OPTIONS+=LLDB
.endif
# LIB32 is supported on amd64, mips64, and powerpc64
.if (${__T} == "amd64" || ${__T:Mmips64*} || ${__T} == "powerpc64")
__DEFAULT_YES_OPTIONS+=LIB32
.else
BROKEN_OPTIONS+=LIB32
.endif
# Only doing soft float API stuff on armv6 and armv7
.if ${__T} != "armv6" && ${__T} != "armv7"
BROKEN_OPTIONS+=LIBSOFT
.endif
.if ${__T:Mmips*}
# GOOGLETEST cannot currently be compiled on mips due to external circumstances.
# Notably, the freebsd-gcc port isn't linking in libgcc so we end up trying ot
# link to a hidden symbol. LLVM would successfully link this in, but some of
# the mips variants are broken under LLVM until LLVM 10. GOOGLETEST should be
# marked no longer broken with the switch to LLVM.
BROKEN_OPTIONS+=GOOGLETEST SSP
.endif
# EFI doesn't exist on mips, powerpc, or riscv.
.if ${__T:Mmips*} || ${__T:Mpowerpc*} || ${__T:Mriscv*}
BROKEN_OPTIONS+=EFI
.endif
# OFW is only for powerpc, exclude others
.if ${__T:Mpowerpc*} == ""
BROKEN_OPTIONS+=LOADER_OFW
.endif
# UBOOT is only for arm, mips and powerpc, exclude others
.if ${__T:Marm*} == "" && ${__T:Mmips*} == "" && ${__T:Mpowerpc*} == ""
BROKEN_OPTIONS+=LOADER_UBOOT
.endif
# GELI and Lua in loader currently cause boot failures on powerpc.
# Further debugging is required -- probably they are just broken on big
# endian systems generically (they jump to null pointers or try to read
# crazy high addresses, which is typical of endianness problems).
.if ${__T:Mpowerpc*}
BROKEN_OPTIONS+=LOADER_GELI LOADER_LUA
.endif
.if ${__T:Mmips64*}
# profiling won't work on MIPS64 because there is only assembly for o32
BROKEN_OPTIONS+=PROFILE
.endif
.if ${__T} != "aarch64" && ${__T} != "amd64" && ${__T} != "i386" && \
${__T} != "powerpc64"
BROKEN_OPTIONS+=CXGBETOOL
BROKEN_OPTIONS+=MLX5TOOL
.endif
# HyperV is currently x86-only
.if ${__T} != "amd64" && ${__T} != "i386"
BROKEN_OPTIONS+=HYPERV
.endif
# NVME is only aarch64, x86 and powerpc64
.if ${__T} != "aarch64" && ${__T} != "amd64" && ${__T} != "i386" && \
${__T} != "powerpc64"
BROKEN_OPTIONS+=NVME
.endif
.if ${__T} == "amd64" || ${__T} == "i386" || ${__T} == "powerpc64"
__DEFAULT_YES_OPTIONS+=OPENMP
.else
__DEFAULT_NO_OPTIONS+=OPENMP
.endif
.include <bsd.mkopt.mk>
#
# Force some options off if their dependencies are off.
# Order is somewhat important.
#
.if ${MK_CAPSICUM} == "no"
MK_CASPER:= no
.endif
.if ${MK_LIBPTHREAD} == "no"
MK_LIBTHR:= no
.endif
.if ${MK_SOURCELESS} == "no"
MK_SOURCELESS_HOST:= no
MK_SOURCELESS_UCODE:= no
.endif
.if ${MK_CDDL} == "no"
MK_ZFS:= no
MK_LOADER_ZFS:= no
MK_CTF:= no
.endif
.if ${MK_CRYPT} == "no"
MK_OPENSSL:= no
MK_OPENSSH:= no
MK_KERBEROS:= no
MK_KERBEROS_SUPPORT:= no
.endif
.if ${MK_CXX} == "no"
MK_CLANG:= no
MK_GOOGLETEST:= no
MK_TESTS:= no
.endif
.if ${MK_DIALOG} == "no"
MK_BSDINSTALL:= no
.endif
.if ${MK_FILE} == "no"
MK_SVNLITE:= no
.endif
.if ${MK_MAIL} == "no"
MK_MAILWRAPPER:= no
MK_SENDMAIL:= no
MK_DMAGENT:= no
.endif
.if ${MK_NETGRAPH} == "no"
MK_ATM:= no
MK_BLUETOOTH:= no
.endif
.if ${MK_NLS} == "no"
MK_NLS_CATALOGS:= no
.endif
.if ${MK_OPENSSL} == "no"
MK_DMAGENT:= no
MK_OPENSSH:= no
MK_KERBEROS:= no
MK_KERBEROS_SUPPORT:= no
MK_LDNS:= no
MK_PKGBOOTSTRAP:= no
MK_SVN:= no
MK_SVNLITE:= no
MK_WIRELESS:= no
.endif
.if ${MK_LDNS} == "no"
MK_LDNS_UTILS:= no
MK_UNBOUND:= no
.endif
.if ${MK_PF} == "no"
MK_AUTHPF:= no
.endif
.if ${MK_OFED} == "no"
MK_OFED_EXTRA:= no
.endif
.if ${MK_PORTSNAP} == "no"
# freebsd-update depends on phttpget from portsnap
MK_FREEBSD_UPDATE:= no
.endif
.if ${MK_TESTS} == "no"
MK_DTRACE_TESTS:= no
.endif
.if ${MK_TESTS_SUPPORT} == "no"
MK_GOOGLETEST:= no
.endif
.if ${MK_ZONEINFO} == "no"
MK_ZONEINFO_LEAPSECONDS_SUPPORT:= no
.endif
.if ${MK_CROSS_COMPILER} == "no"
MK_BINUTILS_BOOTSTRAP:= no
MK_CLANG_BOOTSTRAP:= no
MK_ELFTOOLCHAIN_BOOTSTRAP:= no
MK_LLD_BOOTSTRAP:= no
.endif
.if ${MK_TOOLCHAIN} == "no"
MK_BINUTILS:= no
MK_CLANG:= no
MK_GDB:= no
MK_INCLUDES:= no
MK_LLD:= no
MK_LLDB:= no
.endif
.if ${MK_CLANG} == "no"
MK_CLANG_EXTRAS:= no
MK_CLANG_FULL:= no
MK_LLVM_COV:= no
.endif
.if ${MK_LOADER_VERIEXEC} == "no"
MK_LOADER_VERIEXEC_PASS_MANIFEST := no
.endif
#
# MK_* options whose default value depends on another option.
#
.for vv in \
GSSAPI/KERBEROS \
MAN_UTILS/MAN
.if defined(WITH_${vv:H})
MK_${vv:H}:= yes
.elif defined(WITHOUT_${vv:H})
MK_${vv:H}:= no
.else
MK_${vv:H}:= ${MK_${vv:T}}
.endif
.endfor
#
# Set defaults for the MK_*_SUPPORT variables.
#
.endif # !target(__<src.opts.mk>__)
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