lib/libc/Makefile

   1 #       @(#)Makefile    8.2 (Berkeley) 2/3/94
   2 # $FreeBSD$
   3
   4 PACKAGE=        clibs
   5 SHLIBDIR?= /lib
   6
   7 .include <src.opts.mk>
   8
   9 # Force building of libc_pic.a
  10 MK_TOOLCHAIN=   yes
  11
  12 LIBC_SRCTOP?= ${.CURDIR}
  13
  14 # Pick the current architecture directory for libc. In general, this is
  15 # named MACHINE_CPUARCH, but some ABIs are different enough to require
  16 # their own libc, so allow a directory named MACHINE_ARCH to override this.
  17
  18 .if exists(${LIBC_SRCTOP}/${MACHINE_ARCH:S/powerpc64le/powerpc64/})
  19 LIBC_ARCH=${MACHINE_ARCH:S/powerpc64le/powerpc64/}
  20 .else
  21 LIBC_ARCH=${MACHINE_CPUARCH}
  22 .endif
  23
  24 # All library objects contain FreeBSD revision strings by default; they may be
  25 # excluded as a space-saving measure.  To produce a library that does
  26 # not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAGS
  27 # below.  Note: there are no IDs for syscall stubs whose sources are generated.
  28 # To include legacy CSRG SCCS ID strings, remove -DNO__SCCSID from CFLAGS.
  29 # To include RCS ID strings from other BSD projects, remove -DNO__RCSID from CFLAGS.
  30 CFLAGS+=-DNO__SCCSID -DNO__RCSID
  31
  32 LIB=c
  33 SHLIB_MAJOR= 7
  34 .if ${MK_SSP} != "no" && \
  35     (${LIBC_ARCH} == "i386" || ${MACHINE_ARCH:Mpower*} != "")
  36 SHLIB_LDSCRIPT=libc.ldscript
  37 .else
  38 SHLIB_LDSCRIPT=libc_nossp.ldscript
  39 .endif
  40 SHLIB_LDSCRIPT_LINKS=libxnet.so
  41 WARNS?= 2
  42 CFLAGS+=-I${LIBC_SRCTOP}/include -I${SRCTOP}/include
  43 CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH}
  44 .if ${MK_NLS} != "no"
  45 CFLAGS+=-DNLS
  46 .endif
  47 CLEANFILES+=tags
  48 INSTALL_PIC_ARCHIVE=
  49 BUILD_NOSSP_PIC_ARCHIVE=
  50 PRECIOUSLIB=
  51
  52 .ifndef NO_THREAD_STACK_UNWIND
  53 CANCELPOINTS_CFLAGS=-fexceptions
  54 CFLAGS+=${CANCELPOINTS_CFLAGS}
  55 .endif
  56
  57 # Use a more efficient TLS model for libc since we can reasonably assume that
  58 # it will be loaded during program startup.
  59 .if ${LIBC_ARCH} == "aarch64" || ${LIBC_ARCH} == "amd64" || \
  60     ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "riscv"
  61 CFLAGS+= -ftls-model=initial-exec
  62 .endif
  63
  64 #
  65 # Link with static libcompiler_rt.a.
  66 #
  67 LDFLAGS+= -nodefaultlibs
  68 LIBADD+=        compiler_rt
  69
  70 .if ${MK_SSP} != "no" && \
  71     (${LIBC_ARCH} == "i386" || ${MACHINE_ARCH:Mpower*} != "")
  72 LIBADD+=        ssp_nonshared
  73 .endif
  74
  75 # Extras that live in either libc.a or libc_nonshared.a
  76 LIBC_NONSHARED_SRCS=
  77
  78 RTLD_ELF_DIR=${SRCTOP}/libexec/rtld-elf
  79 .if exists(${RTLD_ELF_DIR}/${MACHINE_ARCH:S/powerpc64le/powerpc64/})
  80 RTLD_ARCH=      ${MACHINE_ARCH:S/powerpc64le/powerpc64/}
  81 .else
  82 RTLD_ARCH=      ${MACHINE_CPUARCH}
  83 .endif
  84 RTLD_HDRS= -I${RTLD_ELF_DIR}/${RTLD_ARCH} -I${RTLD_ELF_DIR}
  85
  86 # Define (empty) variables so that make doesn't give substitution
  87 # errors if the included makefiles don't change these:
  88 MDSRCS=
  89 MISRCS=
  90 MDASM=
  91 MIASM=
  92 NOASM=
  93
  94 .include "${LIBC_SRCTOP}/${LIBC_ARCH}/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 ${LIBC_ARCH} != "aarch64" && \
 112     ${LIBC_ARCH} != "amd64" && \
 113     ${LIBC_ARCH} != "powerpc64" && \
 114     ${LIBC_ARCH} != "riscv" && \
 115     ${MACHINE_ARCH:Mmipsn32*} == "" && \
 116     ${MACHINE_ARCH:Mmips64*} == ""
 117 .include "${LIBC_SRCTOP}/quad/Makefile.inc"
 118 .endif
 119 .include "${LIBC_SRCTOP}/regex/Makefile.inc"
 120 .include "${LIBC_SRCTOP}/resolv/Makefile.inc"
 121 .include "${LIBC_SRCTOP}/stdio/Makefile.inc"
 122 .include "${LIBC_SRCTOP}/stdlib/Makefile.inc"
 123 .include "${LIBC_SRCTOP}/stdlib/jemalloc/Makefile.inc"
 124 .include "${LIBC_SRCTOP}/stdtime/Makefile.inc"
 125 .include "${LIBC_SRCTOP}/string/Makefile.inc"
 126 .include "${LIBC_SRCTOP}/sys/Makefile.inc"
 127 .include "${LIBC_SRCTOP}/secure/Makefile.inc"
 128 .include "${LIBC_SRCTOP}/rpc/Makefile.inc"
 129 .include "${LIBC_SRCTOP}/uuid/Makefile.inc"
 130 .include "${LIBC_SRCTOP}/xdr/Makefile.inc"
 131 .if (${LIBC_ARCH} == "arm" && \
 132         (${MACHINE_ARCH:Marmv[67]*} == "" || (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))) || \
 133     (${LIBC_ARCH} == "mips" && ${MACHINE_ARCH:Mmips*hf} == "") || \
 134     (${LIBC_ARCH} == "riscv" && ${MACHINE_ARCH:Mriscv*sf} != "")
 135 .include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
 136 .endif
 137 .if ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "amd64"
 138 .include "${LIBC_SRCTOP}/x86/sys/Makefile.inc"
 139 .include "${LIBC_SRCTOP}/x86/gen/Makefile.inc"
 140 .endif
 141 .if ${MK_NIS} != "no"
 142 CFLAGS+= -DYP
 143 .include "${LIBC_SRCTOP}/yp/Makefile.inc"
 144 .endif
 145 .include "${LIBC_SRCTOP}/capability/Makefile.inc"
 146 .if ${MK_HESIOD} != "no"
 147 CFLAGS+= -DHESIOD
 148 .endif
 149 .if ${MK_FP_LIBC} == "no"
 150 CFLAGS+= -DNO_FLOATING_POINT
 151 .endif
 152 .if ${MK_NS_CACHING} != "no"
 153 CFLAGS+= -DNS_CACHING
 154 .endif
 155 .if defined(_FREEFALL_CONFIG)
 156 CFLAGS+=-D_FREEFALL_CONFIG
 157 .endif
 158
 159 STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/}
 160
 161 VERSION_DEF=${LIBC_SRCTOP}/Versions.def
 162 SYMBOL_MAPS=${SYM_MAPS}
 163 CFLAGS+= -DSYMBOL_VERSIONING
 164
 165 # If there are no machine dependent sources, append all the
 166 # machine-independent sources:
 167 .if empty(MDSRCS)
 168 SRCS+=  ${MISRCS}
 169 .else
 170 # Append machine-dependent sources, then append machine-independent sources
 171 # for which there is no machine-dependent variant.
 172 SRCS+=  ${MDSRCS}
 173 .for _src in ${MISRCS}
 174 .if ${MDSRCS:R:M${_src:R}} == ""
 175 SRCS+=  ${_src}
 176 .endif
 177 .endfor
 178 .endif
 179
 180 KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
 181         lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
 182         subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
 183 KSRCS=  bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
 184         strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
 185
 186 libkern: libkern.gen libkern.${LIBC_ARCH}
 187
 188 libkern.gen: ${KQSRCS} ${KSRCS}
 189         ${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
 190
 191 libkern.${LIBC_ARCH}:: ${KMSRCS}
 192 .if defined(KMSRCS) && !empty(KMSRCS)
 193         ${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
 194 .endif
 195
 196 HAS_TESTS=
 197 SUBDIR.${MK_TESTS}+= tests
 198
 199 .include <bsd.lib.mk>
 200
 201 .if (${LIBC_ARCH} == amd64 || ${LIBC_ARCH} == i386) && \
 202     ${.TARGETS:Mall} == all && \
 203     defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == ""
 204 .error ${LIBC_ARCH} libc requires linker ifunc support
 205 .endif
 206
 207 .if !defined(_SKIP_BUILD)
 208 # We need libutil.h, get it directly to avoid
 209 # recording a build dependency
 210 CFLAGS+= -I${SRCTOP}/lib/libutil
 211 # Same issue with libm
 212 MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR
 213 # unfortunately msun/src contains both private and public headers
 214 CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR}
 215 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 216 CFLAGS+= -I${SRCTOP}/lib/msun/x86
 217 .endif
 218 CFLAGS+= -I${SRCTOP}/lib/msun/src
 219 # and we do not want to record a dependency on msun
 220 .if ${.MAKE.LEVEL} > 0
 221 GENDIRDEPS_FILTER+= N${RELDIR:H}/msun
 222 .endif
 223 .endif
 224
 225 # Disable warnings in contributed sources.
 226 CWARNFLAGS:=    ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
 227 # Disable stack protection for SSP symbols.
 228 SSP_CFLAGS:=    ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
 229 # Generate stack unwinding tables for cancellation points
 230 CANCELPOINTS_CFLAGS:=   ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}