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freebsd-dev/share/mk/src.opts.mk
Ed Maste b80f3546a8 Support use of LLVM's libunwind for exception unwinding 
It is built in libgcc_s.so and libgcc_eh.a to simplify transition.

It is enabled by default on arm64 (where we previously had no other
unwinder) and may be enabled for testing on other platforms by setting
WITH_LLVM_LIBUNWIND in src.conf(5).

Also add compiler-rt's __gcc_personality_v0 implementation for use with
the LLVM unwinder.

Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D4787
2016-01-09 00:42:07 +00:00

418 lines
8.7 KiB
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 src the builds
__DEFAULT_YES_OPTIONS = \
ACCT \
ACPI \
AMD \
APM \
AT \
ATM \
AUDIT \
AUTHPF \
AUTOFS \
BHYVE \
BINUTILS \
BINUTILS_BOOTSTRAP \
BLUETOOTH \
BOOT \
BOOTPARAMD \
BOOTPD \
BSD_CPIO \
BSDINSTALL \
BSNMP \
BZIP2 \
CALENDAR \
CAPSICUM \
CASPER \
CCD \
CDDL \
CPP \
CROSS_COMPILER \
CRYPT \
CTM \
CUSE \
CXX \
DICT \
DMAGENT \
DYNAMICROOT \
ED_CRYPTO \
EE \
ELFTOOLCHAIN_BOOTSTRAP \
EXAMPLES \
FDT \
FILE \
FINGER \
FLOPPY \
FMTREE \
FORTH \
FP_LIBC \
FREEBSD_UPDATE \
FTP \
GAMES \
GCOV \
GDB \
GNU \
GNU_GREP_COMPAT \
GPIO \
GPL_DTC \
GROFF \
HAST \
HTML \
HYPERV \
ICONV \
INET \
INET6 \
INETD \
IPFILTER \
IPFW \
ISCSI \
JAIL \
KDUMP \
KVM \
LDNS \
LDNS_UTILS \
LEGACY_CONSOLE \
LIB32 \
LIBPTHREAD \
LIBTHR \
LOCALES \
LOCATE \
LPR \
LS_COLORS \
LZMA_SUPPORT \
MAIL \
MAILWRAPPER \
MAKE \
MANDOCDB \
NDIS \
NETCAT \
NETGRAPH \
NLS_CATALOGS \
NS_CACHING \
NTP \
OPENSSL \
PAM \
PC_SYSINSTALL \
PF \
PKGBOOTSTRAP \
PMC \
PORTSNAP \
PPP \
QUOTAS \
RADIUS_SUPPORT \
RCMDS \
RBOOTD \
RCS \
RESCUE \
ROUTED \
SENDMAIL \
SETUID_LOGIN \
SHAREDOCS \
SOURCELESS \
SOURCELESS_HOST \
SOURCELESS_UCODE \
SVNLITE \
SYSCONS \
TALK \
TCP_WRAPPERS \
TCSH \
TELNET \
TESTS \
TEXTPROC \
TFTP \
TIMED \
UNBOUND \
USB \
UTMPX \
VI \
VT \
WIRELESS \
WPA_SUPPLICANT_EAPOL \
ZFS \
ZONEINFO
__DEFAULT_NO_OPTIONS = \
BSD_GREP \
CLANG_EXTRAS \
DTRACE_TESTS \
EISA \
HESIOD \
LIBSOFT \
NAND \
OFED \
OPENLDAP \
SHARED_TOOLCHAIN \
SORT_THREADS \
SVN
#
# 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
.if defined(TARGET)
__TT=${TARGET}
.else
__TT=${MACHINE}
.endif
.include <bsd.compiler.mk>
# If the compiler is not C++11 capable, disable Clang and use GCC instead.
# This means that architectures that have GCC 4.2 as default can not
# build Clang without using an external compiler.
.if ${COMPILER_FEATURES:Mc++11} && (${__T} == "aarch64" || \
${__T} == "amd64" || ${__TT} == "arm" || ${__T} == "i386")
# Clang is enabled, and will be installed as the default /usr/bin/cc.
__DEFAULT_YES_OPTIONS+=CLANG CLANG_BOOTSTRAP CLANG_FULL CLANG_IS_CC
__DEFAULT_NO_OPTIONS+=GCC GCC_BOOTSTRAP GNUCXX
.elif ${COMPILER_FEATURES:Mc++11} && ${__T:Mpowerpc*}
# On powerpc, if an external compiler that supports C++11 is used as ${CC},
# then Clang is enabled, but GCC is installed as the default /usr/bin/cc.
__DEFAULT_YES_OPTIONS+=CLANG CLANG_FULL GCC GCC_BOOTSTRAP GNUCXX
__DEFAULT_NO_OPTIONS+=CLANG_BOOTSTRAP CLANG_IS_CC
.else
# Everything else disables Clang, and uses GCC instead.
__DEFAULT_YES_OPTIONS+=GCC GCC_BOOTSTRAP GNUCXX
__DEFAULT_NO_OPTIONS+=CLANG CLANG_BOOTSTRAP CLANG_FULL CLANG_IS_CC
.endif
# In-tree binutils/gcc are older versions without modern architecture support.
.if ${__T} == "aarch64" || ${__T} == "riscv64"
BROKEN_OPTIONS+=BINUTILS BINUTILS_BOOTSTRAP GCC GCC_BOOTSTRAP GDB
__DEFAULT_YES_OPTIONS+=ELFCOPY_AS_OBJCOPY LLVM_LIBUNWIND
.else
__DEFAULT_NO_OPTIONS+=ELFCOPY_AS_OBJCOPY LLVM_LIBUNWIND
.endif
.if ${__T} == "riscv64"
BROKEN_OPTIONS+=PROFILE # "sorry, unimplemented: profiler support for RISC-V"
BROKEN_OPTIONS+=TESTS # "undefined reference to `_Unwind_Resume'"
BROKEN_OPTIONS+=CXX # "libcxxrt.so: undefined reference to `_Unwind_Resume_or_Rethrow'"
.endif
.if ${__T} == "aarch64" || ${__T} == "amd64"
__DEFAULT_YES_OPTIONS+=LLDB
.else
__DEFAULT_NO_OPTIONS+=LLDB
.endif
# LLVM lacks support for FreeBSD 64-bit atomic operations for ARMv4/ARMv5
.if ${__T} == "arm" || ${__T} == "armeb"
BROKEN_OPTIONS+=LLDB
.endif
# Only doing soft float API stuff on armv6
.if ${__T} != "armv6"
BROKEN_OPTIONS+=LIBSOFT
.endif
.include <bsd.mkopt.mk>
#
# MK_* options that default to "yes" if the compiler is a C++11 compiler.
#
.for var in \
LIBCPLUSPLUS
.if !defined(MK_${var})
.if ${COMPILER_FEATURES:Mc++11}
.if defined(WITHOUT_${var})
MK_${var}:= no
.else
MK_${var}:= yes
.endif
.else
.if defined(WITH_${var})
MK_${var}:= yes
.else
MK_${var}:= no
.endif
.endif
.endif
.endfor
#
# Force some options off if their dependencies are off.
# Order is somewhat important.
#
.if ${MK_LIBPTHREAD} == "no"
MK_LIBTHR:= no
.endif
.if ${MK_LDNS} == "no"
MK_LDNS_UTILS:= no
MK_UNBOUND:= no
.endif
.if ${MK_SOURCELESS} == "no"
MK_SOURCELESS_HOST:= no
MK_SOURCELESS_UCODE:= no
.endif
.if ${MK_CDDL} == "no"
MK_ZFS:= no
MK_CTF:= no
.endif
.if ${MK_CRYPT} == "no"
MK_OPENSSL:= no
MK_OPENSSH:= no
MK_KERBEROS:= no
.endif
.if ${MK_CXX} == "no"
MK_CLANG:= no
MK_GROFF:= no
MK_GNUCXX:= 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_OPENSSL} == "no"
MK_OPENSSH:= no
MK_KERBEROS:= no
.endif
.if ${MK_PF} == "no"
MK_AUTHPF:= no
.endif
.if ${MK_TESTS} == "no"
MK_DTRACE_TESTS:= no
.endif
.if ${MK_TEXTPROC} == "no"
MK_GROFF:= no
.endif
.if ${MK_CROSS_COMPILER} == "no"
MK_BINUTILS_BOOTSTRAP:= no
MK_CLANG_BOOTSTRAP:= no
MK_ELFTOOLCHAIN_BOOTSTRAP:= no
MK_GCC_BOOTSTRAP:= no
.endif
.if ${MK_TOOLCHAIN} == "no"
MK_BINUTILS:= no
MK_CLANG:= no
MK_GCC:= no
MK_GDB:= no
MK_INCLUDES:= no
.endif
.if ${MK_CLANG} == "no"
MK_CLANG_EXTRAS:= no
MK_CLANG_FULL:= no
.endif
#
# Set defaults for the MK_*_SUPPORT variables.
#
#
# MK_*_SUPPORT options which default to "yes" unless their corresponding
# MK_* variable is set to "no".
#
.for var in \
BZIP2 \
GNU \
INET \
INET6 \
KERBEROS \
KVM \
NETGRAPH \
PAM \
TESTS \
WIRELESS
.if defined(WITHOUT_${var}_SUPPORT) || ${MK_${var}} == "no"
MK_${var}_SUPPORT:= no
.else
MK_${var}_SUPPORT:= yes
.endif
.endfor
#
# 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
.if !${COMPILER_FEATURES:Mc++11}
MK_LLDB:= no
.endif
# gcc 4.8 and newer supports libc++, so suppress gnuc++ in that case.
# while in theory we could build it with that, we don't want to do
# that since it creates too much confusion for too little gain.
.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 40800
MK_GNUCXX:=no
MK_GCC:=no
.endif
.endif # !target(__<src.opts.mk>__)
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