1# $NetBSD: bsd.sys.mk,v 1.240 2014/06/13 01:17:45 mrg Exp $ 2# 3# Build definitions used for NetBSD source tree builds. 4 5.if !defined(_BSD_SYS_MK_) 6_BSD_SYS_MK_=1 7 8.if !empty(.INCLUDEDFROMFILE:MMakefile*) 9error1: 10 @(echo "bsd.sys.mk should not be included from Makefiles" >& 2; exit 1) 11.endif 12.if !defined(_BSD_OWN_MK_) 13error2: 14 @(echo "bsd.own.mk must be included before bsd.sys.mk" >& 2; exit 1) 15.endif 16 17.if ${MKREPRO:Uno} == "yes" 18CPPFLAGS+= -Wp,-iremap,${NETBSDSRCDIR}:/usr/src 19CPPFLAGS+= -Wp,-iremap,${DESTDIR}/:/ 20CPPFLAGS+= -Wp,-iremap,${X11SRCDIR}:/usr/xsrc 21.endif 22 23# NetBSD sources use C99 style, with some GCC extensions. 24CFLAGS+= ${${ACTIVE_CC} == "clang":? -std=gnu99 :} 25CFLAGS+= ${${ACTIVE_CC} == "gcc":? -std=gnu99 :} 26CFLAGS+= ${${ACTIVE_CC} == "pcc":? -std=gnu99 :} 27 28.if defined(WARNS) 29CFLAGS+= ${${ACTIVE_CC} == "clang":? -Wno-sign-compare -Wno-pointer-sign :} 30.if ${WARNS} > 0 31CFLAGS+= -Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith 32#CFLAGS+= -Wmissing-declarations -Wredundant-decls -Wnested-externs 33# Add -Wno-sign-compare. -Wsign-compare is included in -Wall as of GCC 3.3, 34# but our sources aren't up for it yet. Also, add -Wno-traditional because 35# gcc includes #elif in the warnings, which is 'this code will not compile 36# in a traditional environment' warning, as opposed to 'this code behaves 37# differently in traditional and ansi environments' which is the warning 38# we wanted, and now we don't get anymore. 39CFLAGS+= -Wno-sign-compare 40CFLAGS+= ${${ACTIVE_CC} == "gcc" :? -Wno-traditional :} 41.if !defined(NOGCCERROR) 42# Set assembler warnings to be fatal 43CFLAGS+= -Wa,--fatal-warnings 44.endif 45# Set linker warnings to be fatal 46# XXX no proper way to avoid "FOO is a patented algorithm" warnings 47# XXX on linking static libs 48.if (!defined(MKPIC) || ${MKPIC} != "no") && \ 49 (!defined(LDSTATIC) || ${LDSTATIC} != "-static") 50# XXX there are some strange problems not yet resolved 51. if !defined(HAVE_GCC) || defined(HAVE_LLVM) 52LDFLAGS+= -Wl,--fatal-warnings 53. endif 54.endif 55.endif 56.if ${WARNS} > 1 57CFLAGS+= -Wreturn-type -Wswitch -Wshadow 58.endif 59.if ${WARNS} > 2 60CFLAGS+= -Wcast-qual -Wwrite-strings 61CFLAGS+= -Wextra -Wno-unused-parameter 62# Readd -Wno-sign-compare to override -Wextra with clang 63CFLAGS+= -Wno-sign-compare 64CXXFLAGS+= -Wabi 65CXXFLAGS+= -Wold-style-cast 66CXXFLAGS+= -Wctor-dtor-privacy -Wnon-virtual-dtor -Wreorder \ 67 -Wno-deprecated -Woverloaded-virtual -Wsign-promo -Wsynth 68CXXFLAGS+= ${${ACTIVE_CXX} == "gcc":? -Wno-non-template-friend -Wno-pmf-conversions :} 69.endif 70.if ${WARNS} > 3 && (defined(HAVE_GCC) || defined(HAVE_LLVM)) 71.if ${WARNS} > 4 72CFLAGS+= -Wold-style-definition 73.endif 74.if ${WARNS} > 5 && !(defined(HAVE_GCC) && ${HAVE_GCC} <= 45) 75CFLAGS+= -Wconversion 76.endif 77CFLAGS+= -Wsign-compare -Wformat=2 78CFLAGS+= ${${ACTIVE_CC} == "gcc":? -Wno-format-zero-length :} 79.endif 80.if ${WARNS} > 3 && defined(HAVE_LLVM) 81CFLAGS+= ${${ACTIVE_CC} == "clang":? -Wpointer-sign -Wmissing-noreturn :} 82.endif 83.if (defined(HAVE_GCC) \ 84 && (${MACHINE_ARCH} == "coldfire" || \ 85 ${MACHINE_ARCH} == "sh3eb" || \ 86 ${MACHINE_ARCH} == "sh3el" || \ 87 ${MACHINE_ARCH} == "m68k" || \ 88 ${MACHINE_ARCH} == "m68000")) 89# XXX GCC 4.5 for sh3 and m68k (which we compile with -Os) is extra noisy for 90# cases it should be better with 91CFLAGS+= -Wno-uninitialized 92.if ${HAVE_GCC} >= 48 93CFLAGS+= -Wno-maybe-uninitialized 94.endif 95.endif 96.endif 97 98CWARNFLAGS+= ${CWARNFLAGS.${ACTIVE_CC}} 99 100CPPFLAGS+= ${AUDIT:D-D__AUDIT__} 101_NOWERROR= ${defined(NOGCCERROR) || (${ACTIVE_CC} == "clang" && defined(NOCLANGERROR)):?yes:no} 102CFLAGS+= ${${_NOWERROR} == "no" :?-Werror:} ${CWARNFLAGS} 103LINTFLAGS+= ${DESTDIR:D-d ${DESTDIR}/usr/include} 104 105.if (${USE_SSP:Uno} != "no") && (${BINDIR:Ux} != "/usr/mdec") 106.if !defined(KERNSRCDIR) && !defined(KERN) # not for kernels nor kern modules 107CPPFLAGS+= -D_FORTIFY_SOURCE=2 108.endif 109COPTS+= -fstack-protector -Wstack-protector 110 111# gcc 4.8 on m68k erroneously does not protect functions with 112# variables needing special alignement, see 113# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59674 114# (the underlying issue for sh and vax may be different, needs more 115# investigation, symptoms are similar but for different sources) 116.if "${ACTIVE_CC}" == "gcc" && "${HAVE_GCC}" == "48" && \ 117 ( ${MACHINE_CPU} == "sh3" || \ 118 ${MACHINE_ARCH} == "vax" || \ 119 ${MACHINE_CPU} == "m68k" ) 120COPTS+= -Wno-error=stack-protector 121.endif 122 123COPTS+= ${${ACTIVE_CC} == "clang":? --param ssp-buffer-size=1 :} 124COPTS+= ${${ACTIVE_CC} == "gcc":? --param ssp-buffer-size=1 :} 125.endif 126 127.if ${MKSOFTFLOAT:Uno} != "no" 128COPTS+= -msoft-float 129FOPTS+= -msoft-float 130.elif ${MACHINE_ARCH} == "coldfire" 131COPTS+= -mhard-float 132FOPTS+= -mhard-float 133.endif 134 135.if ${MKIEEEFP:Uno} != "no" 136.if ${MACHINE_ARCH} == "alpha" 137CFLAGS+= -mieee 138FFLAGS+= -mieee 139.endif 140.endif 141 142.if ${MACHINE} == "sparc64" && ${MACHINE_ARCH} == "sparc" 143CFLAGS+= -Wa,-Av8plus 144.endif 145 146.if !defined(NOGCCERROR) 147.if (${MACHINE_ARCH} == "mips64el") || (${MACHINE_ARCH} == "mips64eb") 148CPUFLAGS+= -Wa,--fatal-warnings 149.endif 150.endif 151 152#.if ${MACHINE} == "sbmips" 153#CFLAGS+= -mips64 -mtune=sb1 154#.endif 155 156#.if (${MACHINE_ARCH} == "mips64el" || ${MACHINE_ARCH} == "mips64eb") && \ 157# (defined(MKPIC) && ${MKPIC} == "no") 158#CPUFLAGS+= -mno-abicalls -fno-PIC 159#.endif 160CFLAGS+= ${CPUFLAGS} 161AFLAGS+= ${CPUFLAGS} 162 163.if !defined(LDSTATIC) || ${LDSTATIC} != "-static" 164# Position Independent Executable flags 165PIE_CFLAGS?= -fPIC 166PIE_LDFLAGS?= -Wl,-pie ${${ACTIVE_CC} == "gcc":? -shared-libgcc :} 167PIE_AFLAGS?= -fPIC 168.endif 169 170ELF2ECOFF?= elf2ecoff 171MKDEP?= mkdep 172MKDEPCXX?= mkdep 173OBJCOPY?= objcopy 174OBJDUMP?= objdump 175PAXCTL?= paxctl 176STRIP?= strip 177 178.SUFFIXES: .o .ln .lo .c .cc .cpp .cxx .C .m ${YHEADER:D.h} 179 180# C 181.c.o: 182 ${_MKTARGET_COMPILE} 183 ${COMPILE.c} ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC} 184.if defined(CTFCONVERT) 185 ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} 186.endif 187 188.c.ln: 189 ${_MKTARGET_COMPILE} 190 ${LINT} ${LINTFLAGS} ${LINTFLAGS.${.IMPSRC:T}} \ 191 ${CPPFLAGS:C/-([IDU])[ ]*/-\1/Wg:M-[IDU]*} \ 192 ${CPPFLAGS.${.IMPSRC:T}:C/-([IDU])[ ]*/-\1/Wg:M-[IDU]*} \ 193 -i ${.IMPSRC} 194 195# C++ 196.cc.o .cpp.o .cxx.o .C.o: 197 ${_MKTARGET_COMPILE} 198 ${COMPILE.cc} ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC} 199 200# Objective C 201# (Defined here rather than in <sys.mk> because `.m' is not just 202# used for Objective C source) 203.m.o: 204 ${_MKTARGET_COMPILE} 205 ${COMPILE.m} ${OBJCOPTS} ${OBJCOPTS.${.IMPSRC:T}} ${.IMPSRC} 206.if defined(CTFCONVERT) 207 ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} 208.endif 209 210# Host-compiled C objects 211# The intermediate step is necessary for Sun CC, which objects to calling 212# object files anything but *.o 213.c.lo: 214 ${_MKTARGET_COMPILE} 215 ${HOST_COMPILE.c} -o ${.TARGET}.o ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC} 216 mv ${.TARGET}.o ${.TARGET} 217 218# C++ 219.cc.lo .cpp.lo .cxx.lo .C.lo: 220 ${_MKTARGET_COMPILE} 221 ${HOST_COMPILE.cc} -o ${.TARGET}.o ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC} 222 mv ${.TARGET}.o ${.TARGET} 223 224# Assembly 225.s.o: 226 ${_MKTARGET_COMPILE} 227 ${COMPILE.s} ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC} 228.if defined(CTFCONVERT) 229 ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} 230.endif 231 232.S.o: 233 ${_MKTARGET_COMPILE} 234 ${COMPILE.S} ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC} 235.if defined(CTFCONVERT) 236 ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} 237.endif 238 239# Lex 240LFLAGS+= ${LPREFIX.${.IMPSRC:T}:D-P${LPREFIX.${.IMPSRC:T}}} 241LFLAGS+= ${LPREFIX:D-P${LPREFIX}} 242 243.l.c: 244 ${_MKTARGET_LEX} 245 ${LEX.l} -o${.TARGET} ${.IMPSRC} 246 247# Yacc 248YFLAGS+= ${YPREFIX.${.IMPSRC:T}:D-p${YPREFIX.${.IMPSRC:T}}} ${YHEADER.${.IMPSRC:T}:D-d} 249YFLAGS+= ${YPREFIX:D-p${YPREFIX}} ${YHEADER:D-d} 250 251.y.c: 252 ${_MKTARGET_YACC} 253 ${YACC.y} -o ${.TARGET} ${.IMPSRC} 254 255.ifdef YHEADER 256.if empty(.MAKEFLAGS:M-n) 257.y.h: ${.TARGET:.h=.c} 258.endif 259.endif 260 261# Objcopy 262# ARM big endian needs to preserve $a/$d/$t symbols for the linker. 263OBJCOPYLIBFLAGS?=${"${.TARGET:M*.po}" != "":?-X:-x} \ 264 ${"${MACHINE_ARCH:M*arm*eb}" != "":?-K '\$a' -K '\$d' -K '\$t':} 265 266.endif # !defined(_BSD_SYS_MK_) 267