freebsd-skq/share/mk/sys.mk
netchild e14ccde629 WITH_CTF can now be specified in src.conf (not recommended, there
are some problems with static executables), make.conf (would also
affect ports which do not use GNU make and do not override the
compile targets) or in the kernel config (via "makeoptions
WITH_CTF=yes").

Additional (related) changes:
 - propagate WITH_CTF to module builds
 - do not add -g to the linker flags, it's a noop there anyway
   (at least according to the man page of ld)
 - do not add -g to CFLAGS unconditionally
   we need to have a look if it is really needed (IMO not) or if there
   is a way to add it only when WITH_CTF is used

Note: ctfconvert / ctfmerge lines will not appear in the build output,
to protect the innocent (those which do not build with WITH_CTF would
see the shell-test and may think WITH_CTF is used).

Reviewed by:	imp, jhb, scottl (earlier version)
Discussed on:	arch@
2010-04-02 06:55:31 +00:00

322 lines
7.2 KiB
Makefile

# from: @(#)sys.mk 8.2 (Berkeley) 3/21/94
# $FreeBSD$
unix ?= We run FreeBSD, not UNIX.
.FreeBSD ?= true
# 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.
.if defined(%POSIX)
.SUFFIXES: .o .c .y .l .a .sh .f
.else
.SUFFIXES: .out .a .ln .o .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 ?= rl
.endif
RANLIB ?= ranlib
AS ?= as
AFLAGS ?=
.if defined(%POSIX)
CC ?= c89
CFLAGS ?= -O
.else
CC ?= cc
.if ${MACHINE_ARCH} == "arm" || ${MACHINE_ARCH} == "mips"
CFLAGS ?= -O -pipe
.else
CFLAGS ?= -O2 -pipe
.endif
.if defined(NO_STRICT_ALIASING)
CFLAGS += -fno-strict-aliasing
.endif
.endif
PO_CFLAGS ?= ${CFLAGS}
# Turn CTF conversion off by default for now. This default could be
# changed later if DTrace becomes popular.
.if !defined(WITH_CTF)
NO_CTF = 1
.endif
# C Type Format data is required for DTrace
CTFFLAGS ?= -L VERSION
CTFCONVERT ?= ctfconvert
CTFMERGE ?= ctfmerge
.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
CTFFLAGS += -g
.else
# XXX: What to do here? Is removing the CFLAGS part completely ok here?
# For now comment it out to not compile with -g unconditionally.
#CFLAGS += -g
.endif
CXX ?= c++
CXXFLAGS ?= ${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign:N-Wold-style-definition}
PO_CXXFLAGS ?= ${CXXFLAGS}
CPP ?= cpp
.if empty(.MAKEFLAGS:M-s)
ECHO ?= echo
ECHODIR ?= echo
.else
ECHO ?= true
.if ${.MAKEFLAGS:M-s} == "-s"
ECHODIR ?= echo
.else
ECHODIR ?= true
.endif
.endif
.if !empty(.MAKEFLAGS:M-n) && ${.MAKEFLAGS:M-n} == "-n"
_+_ ?=
.else
_+_ ?= +
.endif
.if defined(%POSIX)
FC ?= fort77
FFLAGS ?= -O 1
.else
FC ?= f77
FFLAGS ?= -O
.endif
EFLAGS ?=
INSTALL ?= install
LEX ?= lex
LFLAGS ?=
LD ?= ld
LDFLAGS ?=
LINT ?= lint
LINTFLAGS ?= -cghapbx
LINTKERNFLAGS ?= ${LINTFLAGS}
LINTOBJFLAGS ?= -cghapbxu -i
LINTOBJKERNFLAGS?= ${LINTOBJFLAGS}
LINTLIBFLAGS ?= -cghapbxu -C ${LIB}
MAKE ?= make
OBJC ?= cc
OBJCFLAGS ?= ${OBJCINCLUDES} ${CFLAGS} -Wno-import
PC ?= pc
PFLAGS ?=
RC ?= f77
RFLAGS ?=
SHELL ?= sh
YACC ?= yacc
.if defined(%POSIX)
YFLAGS ?=
.else
YFLAGS ?= -d
.endif
.if defined(%POSIX)
# Posix 1003.2 mandated rules
#
# Quoted directly from the Posix 1003.2 draft, only the macros
# $@, $< and $* have been replaced by ${.TARGET}, ${.IMPSRC}, and
# ${.PREFIX}, resp.
# SINGLE SUFFIX RULES
.c:
${CC} ${CFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.f:
${FC} ${FFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.sh:
cp ${.IMPSRC} ${.TARGET}
chmod a+x ${.TARGET}
# DOUBLE SUFFIX RULES
.c.o:
${CC} ${CFLAGS} -c ${.IMPSRC}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.f.o:
${FC} ${FFLAGS} -c ${.IMPSRC}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.y.o:
${YACC} ${YFLAGS} ${.IMPSRC}
${CC} ${CFLAGS} -c y.tab.c
rm -f y.tab.c
mv y.tab.o ${.TARGET}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.l.o:
${LEX} ${LFLAGS} ${.IMPSRC}
${CC} ${CFLAGS} -c lex.yy.c
rm -f lex.yy.c
mv lex.yy.o ${.TARGET}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.y.c:
${YACC} ${YFLAGS} ${.IMPSRC}
mv y.tab.c ${.TARGET}
.l.c:
${LEX} ${LFLAGS} ${.IMPSRC}
mv lex.yy.c ${.TARGET}
.c.a:
${CC} ${CFLAGS} -c ${.IMPSRC}
${AR} ${ARFLAGS} ${.TARGET} ${.PREFIX}.o
rm -f ${.PREFIX}.o
.f.a:
${FC} ${FFLAGS} -c ${.IMPSRC}
${AR} ${ARFLAGS} ${.TARGET} ${.PREFIX}.o
rm -f ${.PREFIX}.o
.else
# non-Posix rule set
.sh:
cp -p ${.IMPSRC} ${.TARGET}
chmod a+x ${.TARGET}
.c.ln:
${LINT} ${LINTOBJFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC} || \
touch ${.TARGET}
.cc.ln .C.ln .cpp.ln .cxx.ln:
${LINT} ${LINTOBJFLAGS} ${CXXFLAGS:M-[DIU]*} ${.IMPSRC} || \
touch ${.TARGET}
.c:
${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.c.o:
${CC} ${CFLAGS} -c ${.IMPSRC}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.cc .cpp .cxx .C:
${CXX} ${CXXFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
.cc.o .cpp.o .cxx.o .C.o:
${CXX} ${CXXFLAGS} -c ${.IMPSRC}
.m.o:
${OBJC} ${OBJCFLAGS} -c ${.IMPSRC}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.p.o:
${PC} ${PFLAGS} -c ${.IMPSRC}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.e .r .F .f:
${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} \
-o ${.TARGET}
.e.o .r.o .F.o .f.o:
${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} -c ${.IMPSRC}
.S.o:
${CC} ${CFLAGS} -c ${.IMPSRC}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.asm.o:
${CC} -x assembler-with-cpp ${CFLAGS} -c ${.IMPSRC}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.s.o:
${AS} ${AFLAGS} -o ${.TARGET} ${.IMPSRC}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
# XXX not -j safe
.y.o:
${YACC} ${YFLAGS} ${.IMPSRC}
${CC} ${CFLAGS} -c y.tab.c -o ${.TARGET}
rm -f y.tab.c
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.l.o:
${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.PREFIX}.tmp.c
${CC} ${CFLAGS} -c ${.PREFIX}.tmp.c -o ${.TARGET}
rm -f ${.PREFIX}.tmp.c
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
# XXX not -j safe
.y.c:
${YACC} ${YFLAGS} ${.IMPSRC}
mv y.tab.c ${.TARGET}
.l.c:
${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.TARGET}
.s.out .c.out .o.out:
${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.f.out .F.out .r.out .e.out:
${FC} ${EFLAGS} ${RFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} \
${LDLIBS} -o ${.TARGET}
rm -f ${.PREFIX}.o
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
# XXX not -j safe
.y.out:
${YACC} ${YFLAGS} ${.IMPSRC}
${CC} ${CFLAGS} ${LDFLAGS} y.tab.c ${LDLIBS} -ly -o ${.TARGET}
rm -f y.tab.c
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.l.out:
${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.PREFIX}.tmp.c
${CC} ${CFLAGS} ${LDFLAGS} ${.PREFIX}.tmp.c ${LDLIBS} -ll -o ${.TARGET}
rm -f ${.PREFIX}.tmp.c
@[ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
# FreeBSD build pollution. Hide it in the non-POSIX part of the ifdef.
__MAKE_CONF?=/etc/make.conf
.if exists(${__MAKE_CONF})
.include "${__MAKE_CONF}"
.endif
.if defined(__MAKE_SHELL) && !empty(__MAKE_SHELL)
SHELL= ${__MAKE_SHELL}
.SHELL: path=${__MAKE_SHELL}
.endif
# Default executable format
# XXX hint for bsd.port.mk
OBJFORMAT?= elf
# Toggle on warnings
.WARN: dirsyntax
.endif
.include <bsd.compat.mk>
.include <bsd.cpu.mk>