HardenedBSD/share/mk/sys.mk
Alex Richardson 7bc797e3f3 Add build system support for ASAN+UBSAN instrumentation
This adds two new options WITH_ASAN/WITH_UBSAN that can be set to
enable instrumentation of all binaries with AddressSanitizer and/or
UndefinedBehaviourSanitizer. This current patch is almost sufficient
to get a complete buildworld with sanitizer instrumentation but in
order to actually build and boot a system it depends on a few more
follow-up commits.

Reviewed By:	brooks, kib, markj
Differential Revision: https://reviews.freebsd.org/D31043
2021-08-02 14:33:24 +01:00

348 lines
8.5 KiB
Makefile

# from: @(#)sys.mk 8.2 (Berkeley) 3/21/94
# $FreeBSD$
unix ?= We run FreeBSD, not UNIX.
.FreeBSD ?= true
.if !defined(%POSIX)
#
# MACHINE_CPUARCH defines a collection of MACHINE_ARCH. Machines with
# the same MACHINE_ARCH can run each other's binaries, so it necessarily
# has word size and endian swizzled in. However, the source files for
# these machines often are shared amongst all combinations of size
# and/or endian. This is called MACHINE_CPU in NetBSD, but that's used
# for something different in FreeBSD.
#
__TO_CPUARCH=C/mips(n32|64)?(el)?(hf)?/mips/:C/arm(v[67])?(eb)?/arm/:C/powerpc(64|64le|spe)/powerpc/:C/riscv64(sf)?/riscv/
MACHINE_CPUARCH=${MACHINE_ARCH:${__TO_CPUARCH}}
.endif
__DEFAULT_YES_OPTIONS+= \
UNIFIED_OBJDIR
# src.sys.obj.mk enables AUTO_OBJ by default if possible but it is otherwise
# disabled. Ensure src.conf.5 shows it as default on.
.if make(showconfig)
__DEFAULT_YES_OPTIONS+= AUTO_OBJ
.endif
# Some options we need now
__DEFAULT_NO_OPTIONS= \
DIRDEPS_BUILD \
DIRDEPS_CACHE
__DEFAULT_DEPENDENT_OPTIONS= \
AUTO_OBJ/DIRDEPS_BUILD \
META_MODE/DIRDEPS_BUILD \
STAGING/DIRDEPS_BUILD \
SYSROOT/DIRDEPS_BUILD
__ENV_ONLY_OPTIONS:= \
${__DEFAULT_NO_OPTIONS} \
${__DEFAULT_YES_OPTIONS} \
${__DEFAULT_DEPENDENT_OPTIONS:H}
# early include for customization
# see local.sys.mk below
# Not included when building in fmake compatibility mode (still needed
# for older system support)
.if defined(.PARSEDIR)
.sinclude <local.sys.env.mk>
.include <bsd.mkopt.mk>
# Disable MK_META_MODE with make -B
.if ${MK_META_MODE} == "yes" && defined(.MAKEFLAGS) && ${.MAKEFLAGS:M-B}
MK_META_MODE= no
.endif
.if ${MK_DIRDEPS_BUILD} == "yes"
.sinclude <meta.sys.mk>
.elif ${MK_META_MODE} == "yes"
META_MODE+= meta
.if empty(.MAKEFLAGS:M-s)
# verbose will show .MAKE.META.PREFIX for each target.
META_MODE+= verbose
.endif
.if !defined(NO_META_MISSING)
META_MODE+= missing-meta=yes
.endif
# silent will hide command output if a .meta file is created.
.if !defined(NO_SILENT)
META_MODE+= silent=yes
.endif
.if !exists(/dev/filemon) || defined(NO_FILEMON)
META_MODE+= nofilemon
.endif
# Require filemon data with bmake
.if empty(META_MODE:Mnofilemon)
META_MODE+= missing-filemon=yes
.endif
.endif
META_MODE?= normal
.export META_MODE
.MAKE.MODE?= ${META_MODE}
.if !empty(.MAKE.MODE:Mmeta)
.if !defined(NO_META_IGNORE_HOST)
# Ignore host file changes that will otherwise cause
# buildworld -> installworld -> buildworld to rebuild everything.
# Since the build is self-reliant and bootstraps everything it needs,
# this should not be a real problem for incremental builds.
# XXX: This relies on the existing host tools retaining ABI compatibility
# through upgrades since they won't be rebuilt on header/library changes.
# This is mitigated by Makefile.inc1 for known-ABI-breaking revisions.
# Note that these are prefix matching, so /lib matches /libexec.
.MAKE.META.IGNORE_PATHS+= \
${__MAKE_SHELL} \
/bin \
/lib \
/rescue \
/sbin \
/usr/bin \
/usr/lib \
/usr/sbin \
/usr/share \
.else
NO_META_IGNORE_HOST_HEADERS= 1
.endif
.if !defined(NO_META_IGNORE_HOST_HEADERS)
.MAKE.META.IGNORE_PATHS+= /usr/include
.endif
# We do not want everything out-of-date just because
# some unrelated shared lib updated this.
.MAKE.META.IGNORE_PATHS+= /usr/local/etc/libmap.d
.endif # !empty(.MAKE.MODE:Mmeta)
.if ${MK_AUTO_OBJ} == "yes"
# This needs to be done early - before .PATH is computed
# Don't do this for 'make showconfig' as it enables all options where meta mode
# is not expected.
.if !make(showconfig) && !make(print-dir) && !make(test-system-*) && \
empty(.MAKEFLAGS:M-[nN])
.sinclude <auto.obj.mk>
.endif
.endif # ${MK_AUTO_OBJ} == "yes"
.else # bmake
.include <bsd.mkopt.mk>
.endif
# If the special target .POSIX appears (without prerequisites or
# commands) before the first noncomment line in the makefile, make shall
# process the makefile as specified by the Posix 1003.2 specification.
# make(1) sets the special macro %POSIX in this case (to the actual
# value "1003.2", for what it's worth).
#
# The rules below use this macro to distinguish between Posix-compliant
# and default behaviour.
#
# This functionality is currently broken, since make(1) processes sys.mk
# before reading any other files, and consequently has no opportunity to
# set the %POSIX macro before we read this point.
.if defined(%POSIX)
.SUFFIXES: .o .c .y .l .a .sh .f
.else
.SUFFIXES: .out .a .o .bco .llo .c .cc .cpp .cxx .C .m .F .f .e .r .y .l .S .asm .s .cl .p .h .sh
.endif
AR ?= ar
.if defined(%POSIX)
ARFLAGS ?= -rv
.else
ARFLAGS ?= -crsD
.endif
RANLIB ?= ranlib
.if !defined(%POSIX)
RANLIBFLAGS ?= -D
.endif
AS ?= as
AFLAGS ?=
ACFLAGS ?=
.if defined(%POSIX)
CC ?= c89
CFLAGS ?= -O
.else
CC ?= cc
CFLAGS ?= -O2 -pipe
.if defined(NO_STRICT_ALIASING)
CFLAGS += -fno-strict-aliasing
.endif
.endif
IR_CFLAGS ?= ${STATIC_CFLAGS:N-O*} ${CFLAGS:N-O*}
PO_CFLAGS ?= ${CFLAGS}
# cp(1) is used to copy source files to ${.OBJDIR}, make sure it can handle
# read-only files as non-root by passing -f.
CP ?= cp -f
CPP ?= cpp
# C Type Format data is required for DTrace
CTFFLAGS ?= -L VERSION
CTFCONVERT ?= ctfconvert
CTFMERGE ?= ctfmerge
.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
CTFFLAGS += -g
.endif
CXX ?= c++
CXXFLAGS ?= ${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign:N-Wold-style-definition}
IR_CXXFLAGS ?= ${STATIC_CXXFLAGS:N-O*} ${CXXFLAGS:N-O*}
PO_CXXFLAGS ?= ${CXXFLAGS}
DTRACE ?= dtrace
DTRACEFLAGS ?= -C -x nolibs
.if empty(.MAKEFLAGS:M-s)
ECHO ?= echo
ECHODIR ?= echo
.else
ECHO ?= true
.if ${.MAKEFLAGS:M-s} == "-s"
ECHODIR ?= echo
.else
ECHODIR ?= true
.endif
.endif
ELFCTL ?= elfctl
.if ${.MAKEFLAGS:M-N}
# bmake -N is supposed to skip executing anything but it does not skip
# exeucting '+' commands. The '+' feature is used where .MAKE
# is not safe for the entire target. -N is intended to skip building sub-makes
# so it executing '+' commands is not right. Work around the bug by not
# setting '+' when -N is used.
_+_ ?=
.else
_+_ ?= +
.endif
.if defined(%POSIX)
FC ?= fort77
FFLAGS ?= -O 1
.else
FC ?= f77
FFLAGS ?= -O
.endif
EFLAGS ?=
INSTALL ?= ${INSTALL_CMD:Uinstall}
LEX ?= lex
LFLAGS ?=
# LDFLAGS is for CC, _LDFLAGS is for LD. Generate _LDFLAGS from
# LDFLAGS by stripping -Wl, from pass-through arguments and dropping
# compiler driver flags (e.g. -mabi=*) that conflict with flags to LD.
LD ?= ld
LDFLAGS ?=
_LDFLAGS = ${LDFLAGS:S/-Wl,//g:N-mabi=*:N-fuse-ld=*:N--ld-path=*:N-fsanitize=*:N-fno-sanitize=*}
MAKE ?= make
.if !defined(%POSIX)
LLVM_LINK ?= llvm-link
LORDER ?= lorder
NM ?= nm
NMFLAGS ?=
OBJC ?= cc
OBJCFLAGS ?= ${OBJCINCLUDES} ${CFLAGS} -Wno-import
OBJCOPY ?= objcopy
PC ?= pc
PFLAGS ?=
RC ?= f77
RFLAGS ?=
TSORT ?= tsort
TSORTFLAGS ?= -q
.endif
SHELL ?= sh
.if !defined(%POSIX)
SIZE ?= size
STRIPBIN ?= strip
.endif
YACC ?= yacc
.if defined(%POSIX)
YFLAGS ?=
.else
YFLAGS ?= -d
.endif
.if defined(%POSIX)
.include "bsd.suffixes-posix.mk"
.else
# non-Posix rule set
.include "bsd.suffixes.mk"
# Pull in global settings.
__MAKE_CONF?=/etc/make.conf
.if exists(${__MAKE_CONF})
.include "${__MAKE_CONF}"
.endif
# late include for customization
.sinclude <local.sys.mk>
.if defined(META_MODE)
META_MODE:= ${META_MODE:O:u}
.endif
.if defined(__MAKE_SHELL) && !empty(__MAKE_SHELL)
SHELL= ${__MAKE_SHELL}
.SHELL: path=${__MAKE_SHELL}
.endif
# Tell bmake to expand -V VAR by default
.MAKE.EXPAND_VARIABLES= yes
# Tell bmake the makefile preference
MAKEFILE_PREFERENCE?= BSDmakefile makefile Makefile
.MAKE.MAKEFILE_PREFERENCE= ${MAKEFILE_PREFERENCE}
# Tell bmake to always pass job tokens, regardless of target depending on
# .MAKE or looking like ${MAKE}/${.MAKE}/$(MAKE)/$(.MAKE)/make.
.MAKE.ALWAYS_PASS_JOB_QUEUE= yes
# By default bmake does *not* use set -e
# when running target scripts, this is a problem for many makefiles here.
# So define a shell that will do what FreeBSD expects.
.ifndef WITHOUT_SHELL_ERRCTL
__MAKE_SHELL?=/bin/sh
.SHELL: name=sh \
quiet="set -" echo="set -v" filter="set -" \
hasErrCtl=yes check="set -e" ignore="set +e" \
echoFlag=v errFlag=e \
path=${__MAKE_SHELL}
.endif
# Hack for ports compatibility. Historically, ports makefiles have
# assumed they can examine MACHINE_CPU without including anything
# because this was automatically included in sys.mk. For /usr/src,
# this file has moved to being included from bsd.opts.mk. Until all
# the ports files are modernized, and a reasonable transition
# period has passed, include it while we're in a ports tree here
# to preserve historic behavior.
.if exists(${.CURDIR}/../../Mk/bsd.port.mk)
.include <bsd.cpu.mk>
.endif
.endif # ! Posix