lib/libc/Makefile

   1
   2 PACKAGE=        clibs
   3 SHLIBDIR?= /lib
   4
   5 .include <src.opts.mk>
   6
   7 LIBC_SRCTOP?= ${.CURDIR}
   8
   9 # Pick the current architecture directory for libc. In general, this is named
  10 # MACHINE_CPUARCH, but some ABIs are different enough to require their own libc,
  11 # so allow a directory named MACHINE_ARCH to override this (though treat
  12 # powerpc64le and powerpc64 the same).
  13 # Note: This is copied to msun/Makefile
  14 M=${MACHINE_ARCH:S/powerpc64le/powerpc64/}
  15 .if exists(${LIBC_SRCTOP}/${M})
  16 LIBC_ARCH=${M}
  17 .else
  18 LIBC_ARCH=${MACHINE_CPUARCH}
  19 .endif
  20
  21 # All library objects contain FreeBSD revision strings by default; they may be
  22 # excluded as a space-saving measure.  To produce a library that does
  23 # not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAGS
  24 # below.  Note: there are no IDs for syscall stubs whose sources are generated.
  25 # To include legacy CSRG SCCS ID strings, remove -DNO__SCCSID from CFLAGS.
  26 # To include RCS ID strings from other BSD projects, remove -DNO__RCSID from CFLAGS.
  27 CFLAGS+=-DNO__SCCSID -DNO__RCSID
  28
  29 LIB=c
  30 SHLIB_MAJOR= 7
  31 .if ${MK_SSP} != "no" && \
  32     (${LIBC_ARCH} == "i386" || ${LIBC_ARCH:Mpowerpc*} != "")
  33 SHLIB_LDSCRIPT=libc.ldscript
  34 .else
  35 SHLIB_LDSCRIPT=libc_nossp.ldscript
  36 .endif
  37 SHLIB_LDSCRIPT_LINKS=libxnet.so
  38 WARNS?= 2
  39 CFLAGS+=-I${LIBC_SRCTOP}/include -I${SRCTOP}/include
  40 CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH}
  41 .if ${MK_NLS} != "no"
  42 CFLAGS+=-DNLS
  43 .endif
  44 CLEANFILES+=tags
  45 INSTALL_PIC_ARCHIVE=
  46 BUILD_NOSSP_PIC_ARCHIVE=
  47 PRECIOUSLIB=
  48
  49 .ifndef NO_THREAD_STACK_UNWIND
  50 CANCELPOINTS_CFLAGS=-fexceptions
  51 CFLAGS+=${CANCELPOINTS_CFLAGS}
  52 .endif
  53
  54 # Use a more efficient TLS model for libc since we can reasonably assume that
  55 # it will be loaded during program startup.
  56 CFLAGS+= -ftls-model=initial-exec
  57
  58 #
  59 # Link with static libcompiler_rt.a.
  60 #
  61 LDFLAGS+= -nodefaultlibs
  62 LIBADD+=        compiler_rt
  63
  64 .if ${MK_SSP} != "no" && \
  65     (${LIBC_ARCH} == "i386" || ${LIBC_ARCH:Mpowerpc*} != "")
  66 LIBADD+=        ssp_nonshared
  67 .endif
  68
  69 # Extras that live in either libc.a or libc_nonshared.a
  70 LIBC_NONSHARED_SRCS=
  71
  72 RTLD_ELF_DIR=${SRCTOP}/libexec/rtld-elf
  73 .if exists(${RTLD_ELF_DIR}/${MACHINE_ARCH:S/powerpc64le/powerpc64/})
  74 RTLD_ARCH=      ${MACHINE_ARCH:S/powerpc64le/powerpc64/}
  75 .else
  76 RTLD_ARCH=      ${MACHINE_CPUARCH}
  77 .endif
  78 RTLD_HDRS= -I${RTLD_ELF_DIR}/${RTLD_ARCH} -I${RTLD_ELF_DIR}
  79
  80 # Define (empty) variables so that make doesn't give substitution
  81 # errors if the included makefiles don't change these:
  82 MDSRCS=
  83 MISRCS=
  84 MDASM=
  85 MIASM=
  86 NOASM=
  87
  88 .include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc"
  89 .include "${LIBC_SRCTOP}/csu/Makefile.inc"
  90 .include "${LIBC_SRCTOP}/db/Makefile.inc"
  91 .include "${LIBC_SRCTOP}/compat-43/Makefile.inc"
  92 .include "${LIBC_SRCTOP}/gdtoa/Makefile.inc"
  93 .include "${LIBC_SRCTOP}/gen/Makefile.inc"
  94 .include "${LIBC_SRCTOP}/gmon/Makefile.inc"
  95 .if ${MK_ICONV} != "no"
  96 .include "${LIBC_SRCTOP}/iconv/Makefile.inc"
  97 .endif
  98 .include "${LIBC_SRCTOP}/inet/Makefile.inc"
  99 .include "${LIBC_SRCTOP}/isc/Makefile.inc"
 100 .include "${LIBC_SRCTOP}/locale/Makefile.inc"
 101 .include "${LIBC_SRCTOP}/md/Makefile.inc"
 102 .include "${LIBC_SRCTOP}/nameser/Makefile.inc"
 103 .include "${LIBC_SRCTOP}/net/Makefile.inc"
 104 .include "${LIBC_SRCTOP}/nls/Makefile.inc"
 105 .include "${LIBC_SRCTOP}/posix1e/Makefile.inc"
 106 .if ${MACHINE_ABI:Mlong32}
 107 .include "${LIBC_SRCTOP}/quad/Makefile.inc"
 108 .endif
 109 .include "${LIBC_SRCTOP}/regex/Makefile.inc"
 110 .include "${LIBC_SRCTOP}/resolv/Makefile.inc"
 111 .include "${LIBC_SRCTOP}/stdio/Makefile.inc"
 112 .include "${LIBC_SRCTOP}/stdlib/Makefile.inc"
 113 .include "${LIBC_SRCTOP}/stdtime/Makefile.inc"
 114 .include "${LIBC_SRCTOP}/string/Makefile.inc"
 115 .include "${LIBC_SRCTOP}/sys/Makefile.inc"
 116 .include "${LIBC_SRCTOP}/secure/Makefile.inc"
 117 .include "${LIBC_SRCTOP}/rpc/Makefile.inc"
 118 .include "${LIBC_SRCTOP}/uuid/Makefile.inc"
 119 .include "${LIBC_SRCTOP}/xdr/Makefile.inc"
 120 .if (${LIBC_ARCH} == "arm" && (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))
 121 .include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
 122 .endif
 123 .if ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "amd64"
 124 .include "${LIBC_SRCTOP}/x86/sys/Makefile.inc"
 125 .include "${LIBC_SRCTOP}/x86/gen/Makefile.inc"
 126 .endif
 127 .if ${MK_NIS} != "no"
 128 CFLAGS+= -DYP
 129 .include "${LIBC_SRCTOP}/yp/Makefile.inc"
 130 .endif
 131 .include "${LIBC_SRCTOP}/capability/Makefile.inc"
 132 .if ${MK_HESIOD} != "no"
 133 CFLAGS+= -DHESIOD
 134 .endif
 135 .if ${MK_FP_LIBC} == "no"
 136 CFLAGS+= -DNO_FLOATING_POINT
 137 .endif
 138 .if ${MK_NS_CACHING} != "no"
 139 CFLAGS+= -DNS_CACHING
 140 .endif
 141 .if defined(_FREEFALL_CONFIG)
 142 CFLAGS+=-D_FREEFALL_CONFIG
 143 .endif
 144
 145 STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/}
 146
 147 VERSION_DEF=${LIBC_SRCTOP}/Versions.def
 148 SYMBOL_MAPS=${SYM_MAPS}
 149
 150 # If there are no machine dependent sources, append all the
 151 # machine-independent sources:
 152 .if empty(MDSRCS) || ${MK_MACHDEP_OPTIMIZATIONS} == no
 153 SRCS+=  ${MISRCS}
 154 .else
 155 # Append machine-dependent sources, then append machine-independent sources
 156 # for which there is no machine-dependent variant.
 157 SRCS+=  ${MDSRCS}
 158 .for _src in ${MISRCS}
 159 .if ${MDSRCS:R:M${_src:R}} == ""
 160 SRCS+=  ${_src}
 161 .endif
 162 .endfor
 163 .endif
 164
 165 KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
 166         lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
 167         subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
 168 KSRCS=  bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
 169         strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
 170
 171 libkern: libkern.gen libkern.${LIBC_ARCH}
 172
 173 libkern.gen: ${KQSRCS} ${KSRCS}
 174         ${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
 175
 176 libkern.${LIBC_ARCH}:: ${KMSRCS}
 177 .if defined(KMSRCS) && !empty(KMSRCS)
 178         ${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
 179 .endif
 180
 181 HAS_TESTS=
 182 SUBDIR.${MK_TESTS}+= tests
 183
 184 .include <bsd.lib.mk>
 185
 186 .if (${LIBC_ARCH} == amd64 || ${LIBC_ARCH} == i386) && \
 187     ${.TARGETS:Mall} == all && \
 188     defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == ""
 189 .error ${LIBC_ARCH} libc requires linker ifunc support
 190 .endif
 191
 192 .if !defined(_SKIP_BUILD)
 193 # We need libutil.h, get it directly to avoid
 194 # recording a build dependency
 195 CFLAGS+= -I${SRCTOP}/lib/libutil
 196 # Same issue with libm
 197 MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR
 198 # unfortunately msun/src contains both private and public headers
 199 CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR}
 200 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 201 CFLAGS+= -I${SRCTOP}/lib/msun/x86
 202 .endif
 203 CFLAGS+= -I${SRCTOP}/lib/msun/src
 204 # and we do not want to record a dependency on msun
 205 .if ${.MAKE.LEVEL} > 0
 206 GENDIRDEPS_FILTER+= N${RELDIR:H}/msun
 207 .endif
 208 .endif
 209
 210 # Disable warnings in contributed sources.
 211 CWARNFLAGS:=    ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
 212 # Disable stack protection for SSP symbols.
 213 SSP_CFLAGS:=    ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
 214 # Generate stack unwinding tables for cancellation points
 215 CANCELPOINTS_CFLAGS:=   ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}