share/mk/bsd.sys.mk

   1 #       $NetBSD: bsd.sys.mk,v 1.188 2009/12/14 01:00:46 matt 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 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 -Wno-traditional
  19 .if !defined(NOGCCERROR)
  20 # Set assembler warnings to be fatal
  21 CFLAGS+=        -Wa,--fatal-warnings
  22 .endif
  23 # Set linker warnings to be fatal
  24 # XXX no proper way to avoid "FOO is a patented algorithm" warnings
  25 # XXX on linking static libs
  26 .if (!defined(MKPIC) || ${MKPIC} != "no") && \
  27     (!defined(LDSTATIC) || ${LDSTATIC} != "-static")
  28 LDFLAGS+=       -Wl,--fatal-warnings
  29 .endif
  30 .endif
  31 .if ${WARNS} > 1
  32 CFLAGS+=        -Wreturn-type -Wswitch -Wshadow
  33 .endif
  34 .if ${WARNS} > 2
  35 CFLAGS+=        -Wcast-qual -Wwrite-strings
  36 CFLAGS+=        -Wextra -Wno-unused-parameter
  37 CXXFLAGS+=      -Wabi
  38 CXXFLAGS+=      -Wold-style-cast
  39 CXXFLAGS+=      -Wctor-dtor-privacy -Wnon-virtual-dtor -Wreorder \
  40                 -Wno-deprecated -Wno-non-template-friend \
  41                 -Woverloaded-virtual -Wno-pmf-conversions -Wsign-promo -Wsynth
  42 .endif
  43 .if ${WARNS} > 3 && defined(HAVE_GCC) && ${HAVE_GCC} >= 3
  44 CFLAGS+=        -Wsign-compare
  45 CFLAGS+=        -std=gnu99
  46 .endif
  47 .endif
  48
  49 CPPFLAGS+=      ${AUDIT:D-D__AUDIT__}
  50 CFLAGS+=        ${CWARNFLAGS} ${NOGCCERROR:D:U-Werror}
  51 LINTFLAGS+=     ${DESTDIR:D-d ${DESTDIR}/usr/include}
  52
  53 .if (${MACHINE_ARCH} == "alpha") || \
  54     (${MACHINE_ARCH} == "hppa") || \
  55     (${MACHINE_ARCH} == "ia64") || \
  56     (${MACHINE_ARCH} == "mipsel") || (${MACHINE_ARCH} == "mipseb") || \
  57     (${MACHINE_ARCH} == "mips64el") || (${MACHINE_ARCH} == "mips64eb")
  58 HAS_SSP=        no
  59 .else
  60 HAS_SSP=        yes
  61 .endif
  62
  63 .if defined(USE_FORT) && (${USE_FORT} != "no")
  64 USE_SSP?=       yes
  65 .if !defined(KERNSRCDIR) && !defined(KERN) # not for kernels nor kern modules
  66 CPPFLAGS+=      -D_FORTIFY_SOURCE=2
  67 .endif
  68 .endif
  69
  70 .if defined(USE_SSP) && (${USE_SSP} != "no") && (${BINDIR:Ux} != "/usr/mdec")
  71 .if ${HAS_SSP} == "yes"
  72 COPTS+=         -fstack-protector -Wstack-protector --param ssp-buffer-size=1
  73 .endif
  74 .endif
  75
  76 .if defined(MKSOFTFLOAT) && (${MKSOFTFLOAT} != "no")
  77 COPTS+=         -msoft-float
  78 FOPTS+=         -msoft-float
  79 .endif
  80
  81 .if defined(MKIEEEFP) && (${MKIEEEFP} != "no")
  82 .if ${MACHINE_ARCH} == "alpha"
  83 CFLAGS+=        -mieee
  84 FFLAGS+=        -mieee
  85 .endif
  86 .endif
  87
  88 .if ${MACHINE} == "sparc64" && ${MACHINE_ARCH} == "sparc"
  89 CFLAGS+=        -Wa,-Av8plus
  90 .endif
  91
  92 .if !defined(NOGCCERROR)
  93 .if (${MACHINE_ARCH} == "mips64el") || (${MACHINE_ARCH} == "mips64eb")
  94 CPUFLAGS+=      -Wa,--fatal-warnings
  95 .endif
  96 .endif
  97
  98 #.if ${MACHINE} == "sbmips"
  99 #CFLAGS+=       -mips64 -mtune=sb1
 100 #.endif
 101
 102 #.if (${MACHINE_ARCH} == "mips64el" || ${MACHINE_ARCH} == "mips64eb") && \
 103 #    (defined(MKPIC) && ${MKPIC} == "no")
 104 #CPUFLAGS+=     -mno-abicalls -fno-PIC
 105 #.endif
 106 CFLAGS+=        ${CPUFLAGS}
 107 AFLAGS+=        ${CPUFLAGS}
 108
 109 # Position Independent Executable flags
 110 PIE_CFLAGS?=        -fPIC -DPIC
 111 PIE_LDFLAGS?=       -Wl,-pie -shared-libgcc
 112 PIE_AFLAGS?=        -fPIC -DPIC
 113
 114 # Helpers for cross-compiling
 115 HOST_CC?=       cc
 116 HOST_CFLAGS?=   -O
 117 HOST_COMPILE.c?=${HOST_CC} ${HOST_CFLAGS} ${HOST_CPPFLAGS} -c
 118 HOST_COMPILE.cc?=      ${HOST_CXX} ${HOST_CXXFLAGS} ${HOST_CPPFLAGS} -c
 119 .if defined(HOSTPROG_CXX)
 120 HOST_LINK.c?=   ${HOST_CXX} ${HOST_CXXFLAGS} ${HOST_CPPFLAGS} ${HOST_LDFLAGS}
 121 .else
 122 HOST_LINK.c?=   ${HOST_CC} ${HOST_CFLAGS} ${HOST_CPPFLAGS} ${HOST_LDFLAGS}
 123 .endif
 124
 125 HOST_CXX?=      c++
 126 HOST_CXXFLAGS?= -O
 127
 128 HOST_CPP?=      cpp
 129 HOST_CPPFLAGS?=
 130
 131 HOST_LD?=       ld
 132 HOST_LDFLAGS?=
 133
 134 HOST_AR?=       ar
 135 HOST_RANLIB?=   ranlib
 136
 137 HOST_LN?=       ln
 138
 139 # HOST_SH must be an absolute path
 140 HOST_SH?=       /bin/sh
 141
 142 ELF2ECOFF?=     elf2ecoff
 143 MKDEP?=         mkdep
 144 OBJCOPY?=       objcopy
 145 OBJDUMP?=       objdump
 146 PAXCTL?=        paxctl
 147 STRIP?=         strip
 148
 149 # TOOL_* variables are defined in bsd.own.mk
 150
 151 .SUFFIXES:      .o .ln .lo .c .cc .cpp .cxx .C .m ${YHEADER:D.h}
 152
 153 # C
 154 .c.o:
 155         ${_MKTARGET_COMPILE}
 156         ${COMPILE.c} ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC}
 157
 158 .c.ln:
 159         ${_MKTARGET_COMPILE}
 160         ${LINT} ${LINTFLAGS} \
 161             ${CPPFLAGS:C/-([IDU])[  ]*/-\1/Wg:M-[IDU]*} \
 162             ${CPPFLAGS.${.IMPSRC:T}:C/-([IDU])[  ]*/-\1/Wg:M-[IDU]*} \
 163             -i ${.IMPSRC}
 164
 165 # C++
 166 .cc.o .cpp.o .cxx.o .C.o:
 167         ${_MKTARGET_COMPILE}
 168         ${COMPILE.cc} ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC}
 169
 170 # Objective C
 171 # (Defined here rather than in <sys.mk> because `.m' is not just
 172 #  used for Objective C source)
 173 .m.o:
 174         ${_MKTARGET_COMPILE}
 175         ${COMPILE.m} ${OBJCOPTS} ${OBJCOPTS.${.IMPSRC:T}} ${.IMPSRC}
 176
 177 # Host-compiled C objects
 178 # The intermediate step is necessary for Sun CC, which objects to calling
 179 # object files anything but *.o
 180 .c.lo:
 181         ${_MKTARGET_COMPILE}
 182         ${HOST_COMPILE.c} -o ${.TARGET}.o ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC}
 183         mv ${.TARGET}.o ${.TARGET}
 184
 185 # C++
 186 .cc.lo .cpp.lo .cxx.lo .C.lo:
 187         ${_MKTARGET_COMPILE}
 188         ${HOST_COMPILE.cc} -o ${.TARGET}.o ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC}
 189         mv ${.TARGET}.o ${.TARGET}
 190
 191 # Assembly
 192 .s.o:
 193         ${_MKTARGET_COMPILE}
 194         ${COMPILE.s} ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC}
 195
 196 .S.o:
 197         ${_MKTARGET_COMPILE}
 198         ${COMPILE.S} ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} ${CPPFLAGS.${.IMPSRC:T}} ${.IMPSRC}
 199
 200 # Lex
 201 LFLAGS+=        ${LPREFIX.${.IMPSRC:T}:D-P${LPREFIX.${.IMPSRC:T}}}
 202 LFLAGS+=        ${LPREFIX:D-P${LPREFIX}}
 203
 204 .l.c:
 205         ${_MKTARGET_LEX}
 206         ${LEX.l} -o${.TARGET} ${.IMPSRC}
 207
 208 # Yacc
 209 YFLAGS+=        ${YPREFIX.${.IMPSRC:T}:D-p${YPREFIX.${.IMPSRC:T}}} ${YHEADER.${.IMPSRC:T}:D-d}
 210 YFLAGS+=        ${YPREFIX:D-p${YPREFIX}} ${YHEADER:D-d}
 211
 212 .y.c:
 213         ${_MKTARGET_YACC}
 214         ${YACC.y} -o ${.TARGET} ${.IMPSRC}
 215
 216 .ifdef YHEADER
 217 .if empty(.MAKEFLAGS:M-n)
 218 .y.h: ${.TARGET:.h=.c}
 219 .endif
 220 .endif
 221
 222 .endif  # !defined(_BSD_SYS_MK_)