lib/libc/Makefile

   1 #       @(#)Makefile    8.2 (Berkeley) 2/3/94
   2
   3 PACKAGE=        clibs
   4 SHLIBDIR?= /lib
   5
   6 .include <src.opts.mk>
   7
   8 LIBC_SRCTOP?= ${.CURDIR}
   9
  10 # Pick the current architecture directory for libc. In general, this is named
  11 # MACHINE_CPUARCH, but some ABIs are different enough to require their own libc,
  12 # so allow a directory named MACHINE_ARCH to override this (though treat
  13 # powerpc64le and powerpc64 the same).
  14 # Note: This is copeid to msun/Makefile
  15 M=${MACHINE_ARCH:S/powerpc64le/powerpc64/}
  16 .if exists(${LIBC_SRCTOP}/${M})
  17 LIBC_ARCH=${M}
  18 .else
  19 LIBC_ARCH=${MACHINE_CPUARCH}
  20 .endif
  21
  22 # All library objects contain FreeBSD revision strings by default; they may be
  23 # excluded as a space-saving measure.  To produce a library that does
  24 # not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAGS
  25 # below.  Note: there are no IDs for syscall stubs whose sources are generated.
  26 # To include legacy CSRG SCCS ID strings, remove -DNO__SCCSID from CFLAGS.
  27 # To include RCS ID strings from other BSD projects, remove -DNO__RCSID from CFLAGS.
  28 CFLAGS+=-DNO__SCCSID -DNO__RCSID
  29
  30 LIB=c
  31 SHLIB_MAJOR= 7
  32 .if ${MK_SSP} != "no" && \
  33     (${LIBC_ARCH} == "i386" || ${LIBC_ARCH:Mpowerpc*} != "")
  34 SHLIB_LDSCRIPT=libc.ldscript
  35 .else
  36 SHLIB_LDSCRIPT=libc_nossp.ldscript
  37 .endif
  38 SHLIB_LDSCRIPT_LINKS=libxnet.so
  39 WARNS?= 2
  40 CFLAGS+=-I${LIBC_SRCTOP}/include -I${SRCTOP}/include
  41 CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH}
  42 .if ${MK_NLS} != "no"
  43 CFLAGS+=-DNLS
  44 .endif
  45 CLEANFILES+=tags
  46 INSTALL_PIC_ARCHIVE=
  47 BUILD_NOSSP_PIC_ARCHIVE=
  48 PRECIOUSLIB=
  49
  50 .ifndef NO_THREAD_STACK_UNWIND
  51 CANCELPOINTS_CFLAGS=-fexceptions
  52 CFLAGS+=${CANCELPOINTS_CFLAGS}
  53 .endif
  54
  55 # Use a more efficient TLS model for libc since we can reasonably assume that
  56 # it will be loaded during program startup.
  57 .if ${LIBC_ARCH} == "aarch64" || ${LIBC_ARCH} == "amd64" || \
  58     ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "riscv" || \
  59     ${LIBC_ARCH:Mpowerpc*} != ""
  60 CFLAGS+= -ftls-model=initial-exec
  61 .endif
  62
  63 #
  64 # Link with static libcompiler_rt.a.
  65 #
  66 LDFLAGS+= -nodefaultlibs
  67 LIBADD+=        compiler_rt
  68
  69 .if ${MK_SSP} != "no" && \
  70     (${LIBC_ARCH} == "i386" || ${LIBC_ARCH:Mpowerpc*} != "")
  71 LIBADD+=        ssp_nonshared
  72 .endif
  73
  74 # Extras that live in either libc.a or libc_nonshared.a
  75 LIBC_NONSHARED_SRCS=
  76
  77 RTLD_ELF_DIR=${SRCTOP}/libexec/rtld-elf
  78 .if exists(${RTLD_ELF_DIR}/${MACHINE_ARCH:S/powerpc64le/powerpc64/})
  79 RTLD_ARCH=      ${MACHINE_ARCH:S/powerpc64le/powerpc64/}
  80 .else
  81 RTLD_ARCH=      ${MACHINE_CPUARCH}
  82 .endif
  83 RTLD_HDRS= -I${RTLD_ELF_DIR}/${RTLD_ARCH} -I${RTLD_ELF_DIR}
  84
  85 # Define (empty) variables so that make doesn't give substitution
  86 # errors if the included makefiles don't change these:
  87 MDSRCS=
  88 MISRCS=
  89 MDASM=
  90 MIASM=
  91 NOASM=
  92
  93 .include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc"
  94 .include "${LIBC_SRCTOP}/csu/Makefile.inc"
  95 .include "${LIBC_SRCTOP}/db/Makefile.inc"
  96 .include "${LIBC_SRCTOP}/compat-43/Makefile.inc"
  97 .include "${LIBC_SRCTOP}/gdtoa/Makefile.inc"
  98 .include "${LIBC_SRCTOP}/gen/Makefile.inc"
  99 .include "${LIBC_SRCTOP}/gmon/Makefile.inc"
 100 .if ${MK_ICONV} != "no"
 101 .include "${LIBC_SRCTOP}/iconv/Makefile.inc"
 102 .endif
 103 .include "${LIBC_SRCTOP}/inet/Makefile.inc"
 104 .include "${LIBC_SRCTOP}/isc/Makefile.inc"
 105 .include "${LIBC_SRCTOP}/locale/Makefile.inc"
 106 .include "${LIBC_SRCTOP}/md/Makefile.inc"
 107 .include "${LIBC_SRCTOP}/nameser/Makefile.inc"
 108 .include "${LIBC_SRCTOP}/net/Makefile.inc"
 109 .include "${LIBC_SRCTOP}/nls/Makefile.inc"
 110 .include "${LIBC_SRCTOP}/posix1e/Makefile.inc"
 111 .if ${MACHINE_ABI:Mlong32}
 112 .include "${LIBC_SRCTOP}/quad/Makefile.inc"
 113 .endif
 114 .include "${LIBC_SRCTOP}/regex/Makefile.inc"
 115 .include "${LIBC_SRCTOP}/resolv/Makefile.inc"
 116 .include "${LIBC_SRCTOP}/stdio/Makefile.inc"
 117 .include "${LIBC_SRCTOP}/stdlib/Makefile.inc"
 118 .include "${LIBC_SRCTOP}/stdtime/Makefile.inc"
 119 .include "${LIBC_SRCTOP}/string/Makefile.inc"
 120 .include "${LIBC_SRCTOP}/sys/Makefile.inc"
 121 .include "${LIBC_SRCTOP}/secure/Makefile.inc"
 122 .include "${LIBC_SRCTOP}/rpc/Makefile.inc"
 123 .include "${LIBC_SRCTOP}/uuid/Makefile.inc"
 124 .include "${LIBC_SRCTOP}/xdr/Makefile.inc"
 125 .if (${LIBC_ARCH} == "arm" && (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))
 126 .include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
 127 .endif
 128 .if ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "amd64"
 129 .include "${LIBC_SRCTOP}/x86/sys/Makefile.inc"
 130 .include "${LIBC_SRCTOP}/x86/gen/Makefile.inc"
 131 .endif
 132 .if ${MK_NIS} != "no"
 133 CFLAGS+= -DYP
 134 .include "${LIBC_SRCTOP}/yp/Makefile.inc"
 135 .endif
 136 .include "${LIBC_SRCTOP}/capability/Makefile.inc"
 137 .if ${MK_HESIOD} != "no"
 138 CFLAGS+= -DHESIOD
 139 .endif
 140 .if ${MK_FP_LIBC} == "no"
 141 CFLAGS+= -DNO_FLOATING_POINT
 142 .endif
 143 .if ${MK_NS_CACHING} != "no"
 144 CFLAGS+= -DNS_CACHING
 145 .endif
 146 .if defined(_FREEFALL_CONFIG)
 147 CFLAGS+=-D_FREEFALL_CONFIG
 148 .endif
 149
 150 STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/}
 151
 152 VERSION_DEF=${LIBC_SRCTOP}/Versions.def
 153 SYMBOL_MAPS=${SYM_MAPS}
 154 CFLAGS+= -DSYMBOL_VERSIONING
 155
 156 # If there are no machine dependent sources, append all the
 157 # machine-independent sources:
 158 .if empty(MDSRCS) || ${MK_MACHDEP_OPTIMIZATIONS} == no
 159 SRCS+=  ${MISRCS}
 160 .else
 161 # Append machine-dependent sources, then append machine-independent sources
 162 # for which there is no machine-dependent variant.
 163 SRCS+=  ${MDSRCS}
 164 .for _src in ${MISRCS}
 165 .if ${MDSRCS:R:M${_src:R}} == ""
 166 SRCS+=  ${_src}
 167 .endif
 168 .endfor
 169 .endif
 170
 171 KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
 172         lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
 173         subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
 174 KSRCS=  bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
 175         strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
 176
 177 libkern: libkern.gen libkern.${LIBC_ARCH}
 178
 179 libkern.gen: ${KQSRCS} ${KSRCS}
 180         ${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
 181
 182 libkern.${LIBC_ARCH}:: ${KMSRCS}
 183 .if defined(KMSRCS) && !empty(KMSRCS)
 184         ${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
 185 .endif
 186
 187 HAS_TESTS=
 188 SUBDIR.${MK_TESTS}+= tests
 189
 190 .include <bsd.lib.mk>
 191
 192 .if (${LIBC_ARCH} == amd64 || ${LIBC_ARCH} == i386) && \
 193     ${.TARGETS:Mall} == all && \
 194     defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == ""
 195 .error ${LIBC_ARCH} libc requires linker ifunc support
 196 .endif
 197
 198 .if !defined(_SKIP_BUILD)
 199 # We need libutil.h, get it directly to avoid
 200 # recording a build dependency
 201 CFLAGS+= -I${SRCTOP}/lib/libutil
 202 # Same issue with libm
 203 MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR
 204 # unfortunately msun/src contains both private and public headers
 205 CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR}
 206 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 207 CFLAGS+= -I${SRCTOP}/lib/msun/x86
 208 .endif
 209 CFLAGS+= -I${SRCTOP}/lib/msun/src
 210 # and we do not want to record a dependency on msun
 211 .if ${.MAKE.LEVEL} > 0
 212 GENDIRDEPS_FILTER+= N${RELDIR:H}/msun
 213 .endif
 214 .endif
 215
 216 # Disable warnings in contributed sources.
 217 CWARNFLAGS:=    ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
 218 # Disable stack protection for SSP symbols.
 219 SSP_CFLAGS:=    ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
 220 # Generate stack unwinding tables for cancellation points
 221 CANCELPOINTS_CFLAGS:=   ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}