share/mk/bsd.sys.mk

   1 #       $NetBSD: bsd.sys.mk,v 1.186 2009/11/30 16:13:23 uebayasi Exp $
   2 #
   3 # Build definitions used for NetBSD source tree builds.
   4
   5 .if !defined(_MINIX_SYS_MK_)
   6 _MINIX_SYS_MK_=1
   7
   8 .if defined(WARNS)
   9 .if ${WARNS} > 0
  10 CFLAGS+=        -Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith
  11 #CFLAGS+=       -Wmissing-declarations -Wredundant-decls -Wnested-externs
  12 # Add -Wno-sign-compare.  -Wsign-compare is included in -Wall as of GCC 3.3,
  13 # but our sources aren't up for it yet. Also, add -Wno-traditional because
  14 # gcc includes #elif in the warnings, which is 'this code will not compile
  15 # in a traditional environment' warning, as opposed to 'this code behaves
  16 # differently in traditional and ansi environments' which is the warning
  17 # we wanted, and now we don't get anymore.
  18 CFLAGS+=        -Wno-sign-compare
  19 .if !empty(CC:Mgcc)
  20 CFLAGS+=        -Wno-traditional
  21 .endif
  22 .if !defined(NOGCCERROR) && !empty(CC:Mgcc)
  23 # Set assembler warnings to be fatal
  24 CFLAGS+=        -Wa,--fatal-warnings
  25 .endif
  26 # Set linker warnings to be fatal
  27 # XXX no proper way to avoid "FOO is a patented algorithm" warnings
  28 # XXX on linking static libs
  29 .if (!defined(MKPIC) || ${MKPIC} != "no") && \
  30     (!defined(LDSTATIC) || ${LDSTATIC} != "-static") \
  31         && !empty(CC:Mgcc)
  32 LDFLAGS+=       -Wl,--fatal-warnings
  33 .endif
  34 .endif
  35 .if ${WARNS} > 1
  36 CFLAGS+=        -Wreturn-type -Wswitch -Wshadow
  37 .endif
  38 .if ${WARNS} > 2
  39 CFLAGS+=        -Wcast-qual -Wwrite-strings
  40 CFLAGS+=        -Wextra -Wno-unused-parameter
  41 CXXFLAGS+=      -Wabi
  42 CXXFLAGS+=      -Wold-style-cast
  43 CXXFLAGS+=      -Wctor-dtor-privacy -Wnon-virtual-dtor -Wreorder \
  44                 -Wno-deprecated -Wno-non-template-friend \
  45                 -Woverloaded-virtual -Wno-pmf-conversions -Wsign-promo -Wsynth
  46 .endif
  47 .if ${WARNS} > 3 && defined(HAVE_GCC) && ${HAVE_GCC} >= 3
  48 CFLAGS+=        -Wsign-compare
  49 CFLAGS+=        -std=gnu99
  50 .endif
  51 .endif
  52
  53 # XXX: Temporarily disabled for MINIX
  54 # CPPFLAGS+=    ${AUDIT:D-D__AUDIT__}
  55 # CFLAGS+=      ${CWARNFLAGS} ${NOGCCERROR:D:U-Werror}
  56 # LINTFLAGS+=   ${DESTDIR:D-d ${DESTDIR}/usr/include}
  57
  58 .if (${MACHINE_ARCH} == "alpha") || \
  59     (${MACHINE_ARCH} == "hppa") || \
  60     (${MACHINE_ARCH} == "ia64") || \
  61     (${MACHINE_ARCH} == "mipsel") || (${MACHINE_ARCH} == "mipseb") || \
  62     (${MACHINE_ARCH} == "mips64el") || (${MACHINE_ARCH} == "mips64eb")
  63 HAS_SSP=        no
  64 .else
  65 HAS_SSP=        yes
  66 .endif
  67
  68 .if defined(NBSD_LIBC) && (${NBSD_LIBC} != "no")
  69 CPPFLAGS+=     -D__NBSD_LIBC
  70 .endif
  71
  72 .if defined(USE_FORT) && (${USE_FORT} != "no")
  73 USE_SSP?=       yes
  74 .if !defined(KERNSRCDIR) && !defined(KERN) # not for kernels nor kern modules
  75 CPPFLAGS+=      -D_FORTIFY_SOURCE=2
  76 .endif
  77 .endif
  78
  79 .if defined(USE_SSP) && (${USE_SSP} != "no") && (${BINDIR:Ux} != "/usr/mdec")
  80 .if ${HAS_SSP} == "yes"
  81 COPTS+=         -fstack-protector -Wstack-protector --param ssp-buffer-size=1
  82 .endif
  83 .endif
  84
  85 .if defined(MKSOFTFLOAT) && (${MKSOFTFLOAT} != "no")
  86 COPTS+=         -msoft-float
  87 FOPTS+=         -msoft-float
  88 .endif
  89
  90 .if defined(MKIEEEFP) && (${MKIEEEFP} != "no")
  91 .if ${MACHINE_ARCH} == "alpha"
  92 CFLAGS+=        -mieee
  93 FFLAGS+=        -mieee
  94 .endif
  95 .endif
  96
  97 .if ${MACHINE} == "sparc64" && ${MACHINE_ARCH} == "sparc"
  98 CFLAGS+=        -Wa,-Av8plus
  99 .endif
 100
 101 CFLAGS+=        ${CPUFLAGS}
 102 AFLAGS+=        ${CPUFLAGS}
 103
 104 # Position Independent Executable flags
 105 PIE_CFLAGS?=        -fPIC -DPIC
 106 PIE_LDFLAGS?=       -Wl,-pie -shared-libgcc
 107 PIE_AFLAGS?=        -fPIC -DPIC
 108
 109 # Helpers for cross-compiling
 110 HOST_CC?=       cc
 111 HOST_CFLAGS?=   -O
 112 HOST_CFLAGS?=
 113 HOST_COMPILE.c?=${HOST_CC} ${HOST_CFLAGS} ${HOST_CPPFLAGS} -c
 114 HOST_COMPILE.cc?=      ${HOST_CXX} ${HOST_CXXFLAGS} ${HOST_CPPFLAGS} -c
 115 .if defined(HOSTPROG_CXX)
 116 HOST_LINK.c?=   ${HOST_CXX} ${HOST_CXXFLAGS} ${HOST_CPPFLAGS} ${HOST_LDFLAGS}
 117 .else
 118 HOST_LINK.c?=   ${HOST_CC} ${HOST_CFLAGS} ${HOST_CPPFLAGS} ${HOST_LDFLAGS}
 119 .endif
 120
 121 HOST_CXX?=      c++
 122 HOST_CXXFLAGS?= -O
 123 HOST_CXXFLAGS?=
 124
 125 HOST_CPP?=      cpp
 126 HOST_CPPFLAGS?=
 127
 128 HOST_LD?=       ld
 129 HOST_LDFLAGS?=
 130
 131 HOST_AR?=       ar
 132 HOST_RANLIB?=   ranlib
 133
 134 HOST_LN?=       ln
 135
 136 # HOST_SH must be an absolute path
 137 HOST_SH?=       /bin/sh
 138
 139 ELF2ECOFF?=     elf2ecoff
 140 MKDEP?=         mkdep
 141 OBJCOPY?=       objcopy
 142 OBJDUMP?=       objdump
 143 PAXCTL?=        paxctl
 144 STRIP?=         strip
 145
 146 # TOOL_* variables are defined in bsd.own.mk
 147
 148 .SUFFIXES:      .o .ln .lo .c .cc .cpp .cxx .C .m ${YHEADER:D.h}
 149
 150 # C
 151 .c.o:
 152         ${_MKTARGET_COMPILE}
 153         ${COMPILE.c} ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC}
 154
 155 .c.ln:
 156         ${_MKTARGET_COMPILE}
 157         ${LINT} ${LINTFLAGS} \
 158             ${CPPFLAGS:C/-([IDU])[  ]*/-\1/Wg:M-[IDU]*} \
 159             ${CPPFLAGS.${.IMPSRC:T}:C/-([IDU])[  ]*/-\1/Wg:M-[IDU]*} \
 160             -i ${.IMPSRC}
 161
 162 # C++
 163 .cc.o .cpp.o .cxx.o .C.o:
 164         ${_MKTARGET_COMPILE}
 165         ${COMPILE.cc} ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC}
 166
 167 # Objective C
 168 # (Defined here rather than in <sys.mk> because `.m' is not just
 169 #  used for Objective C source)
 170 .m.o:
 171         ${_MKTARGET_COMPILE}
 172         ${COMPILE.m} ${OBJCOPTS} ${OBJCOPTS.${.IMPSRC:T}} ${.IMPSRC}
 173
 174 # Host-compiled C objects
 175 # The intermediate step is necessary for Sun CC, which objects to calling
 176 # object files anything but *.o
 177 .c.lo:
 178         ${_MKTARGET_COMPILE}
 179         ${HOST_COMPILE.c} -o ${.TARGET}.o ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC}
 180         mv ${.TARGET}.o ${.TARGET}
 181
 182 # C++
 183 .cc.lo .cpp.lo .cxx.lo .C.lo:
 184         ${_MKTARGET_COMPILE}
 185         ${HOST_COMPILE.cc} -o ${.TARGET}.o ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC}
 186         mv ${.TARGET}.o ${.TARGET}
 187
 188 # Assembly
 189 .s.o:
 190         ${_MKTARGET_COMPILE}
 191         ${COMPILE.s} ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC}
 192
 193 .S.o:
 194         ${_MKTARGET_COMPILE}
 195         ${COMPILE.S} ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC}
 196
 197 # Lex
 198 LFLAGS+=        ${LPREFIX.${.IMPSRC:T}:D-P${LPREFIX.${.IMPSRC:T}}}
 199 LFLAGS+=        ${LPREFIX:D-P${LPREFIX}}
 200
 201 .l.c:
 202         ${_MKTARGET_LEX}
 203         ${LEX.l} -o${.TARGET} ${.IMPSRC}
 204
 205 # Yacc
 206 YFLAGS+=        ${YPREFIX.${.IMPSRC:T}:D-p${YPREFIX.${.IMPSRC:T}}} ${YHEADER.${.IMPSRC:T}:D-d}
 207 YFLAGS+=        ${YPREFIX:D-p${YPREFIX}} ${YHEADER:D-d}
 208
 209 .ifdef QUIET_YACC
 210 .y.c:
 211         ${_MKTARGET_YACC}
 212         ${YACC.y} -o ${.TARGET} ${.IMPSRC} 2> /dev/null
 213 .else
 214 .y.c:
 215         ${_MKTARGET_YACC}
 216         ${YACC.y} -o ${.TARGET} ${.IMPSRC}
 217 .endif
 218
 219 .ifdef YHEADER
 220 .y.h: ${.TARGET:.h=.c}
 221 .endif
 222
 223 .endif  # !defined(_MINIX_SYS_MK_)