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 # BIND_NOW in libc results in segfault at startup (PR 233333)
  10 MK_BIND_NOW=    no
  11 # Force building of libc_pic.a
  12 MK_TOOLCHAIN=   yes
  13
  14 LIBC_SRCTOP?= ${.CURDIR}
  15
  16 # Pick the current architecture directory for libc. In general, this is
  17 # named MACHINE_CPUARCH, but some ABIs are different enough to require
  18 # their own libc, so allow a directory named MACHINE_ARCH to override this.
  19
  20 .if exists(${LIBC_SRCTOP}/${MACHINE_ARCH})
  21 LIBC_ARCH=${MACHINE_ARCH}
  22 .else
  23 LIBC_ARCH=${MACHINE_CPUARCH}
  24 .endif
  25
  26 # All library objects contain FreeBSD revision strings by default; they may be
  27 # excluded as a space-saving measure.  To produce a library that does
  28 # not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAGS
  29 # below.  Note: there are no IDs for syscall stubs whose sources are generated.
  30 # To include legacy CSRG SCCS ID strings, remove -DNO__SCCSID from CFLAGS.
  31 # To include RCS ID strings from other BSD projects, remove -DNO__RCSID from CFLAGS.
  32 CFLAGS+=-DNO__SCCSID -DNO__RCSID
  33
  34 LIB=c
  35 SHLIB_MAJOR= 7
  36 .if ${MK_SSP} != "no"
  37 SHLIB_LDSCRIPT=libc.ldscript
  38 .else
  39 SHLIB_LDSCRIPT=libc_nossp.ldscript
  40 .endif
  41 SHLIB_LDSCRIPT_LINKS=libxnet.so
  42 WARNS?= 2
  43 CFLAGS+=-I${LIBC_SRCTOP}/include -I${SRCTOP}/include
  44 CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH}
  45 .if ${MK_NLS} != "no"
  46 CFLAGS+=-DNLS
  47 .endif
  48 CLEANFILES+=tags
  49 INSTALL_PIC_ARCHIVE=
  50 BUILD_NOSSP_PIC_ARCHIVE=
  51 PRECIOUSLIB=
  52
  53 .ifndef NO_THREAD_STACK_UNWIND
  54 CANCELPOINTS_CFLAGS=-fexceptions
  55 CFLAGS+=${CANCELPOINTS_CFLAGS}
  56 .endif
  57
  58 #
  59 # Link with static libcompiler_rt.a.
  60 #
  61 LDFLAGS+= -nodefaultlibs
  62 LIBADD+=        compiler_rt
  63
  64 .if ${MK_SSP} != "no"
  65 LIBADD+=        ssp_nonshared
  66 .endif
  67
  68 # Extras that live in either libc.a or libc_nonshared.a
  69 LIBC_NONSHARED_SRCS=
  70
  71 # Define (empty) variables so that make doesn't give substitution
  72 # errors if the included makefiles don't change these:
  73 MDSRCS=
  74 MISRCS=
  75 MDASM=
  76 MIASM=
  77 NOASM=
  78
  79 .include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc"
  80 .include "${LIBC_SRCTOP}/db/Makefile.inc"
  81 .include "${LIBC_SRCTOP}/compat-43/Makefile.inc"
  82 .include "${LIBC_SRCTOP}/gdtoa/Makefile.inc"
  83 .include "${LIBC_SRCTOP}/gen/Makefile.inc"
  84 .include "${LIBC_SRCTOP}/gmon/Makefile.inc"
  85 .if ${MK_ICONV} != "no"
  86 .include "${LIBC_SRCTOP}/iconv/Makefile.inc"
  87 .endif
  88 .include "${LIBC_SRCTOP}/inet/Makefile.inc"
  89 .include "${LIBC_SRCTOP}/isc/Makefile.inc"
  90 .include "${LIBC_SRCTOP}/locale/Makefile.inc"
  91 .include "${LIBC_SRCTOP}/md/Makefile.inc"
  92 .include "${LIBC_SRCTOP}/nameser/Makefile.inc"
  93 .include "${LIBC_SRCTOP}/net/Makefile.inc"
  94 .include "${LIBC_SRCTOP}/nls/Makefile.inc"
  95 .include "${LIBC_SRCTOP}/posix1e/Makefile.inc"
  96 .if ${LIBC_ARCH} != "aarch64" && \
  97     ${LIBC_ARCH} != "amd64" && \
  98     ${LIBC_ARCH} != "powerpc64" && \
  99     ${LIBC_ARCH} != "riscv" && \
 100     ${LIBC_ARCH} != "sparc64" && \
 101     ${MACHINE_ARCH:Mmipsn32*} == "" && \
 102     ${MACHINE_ARCH:Mmips64*} == ""
 103 .include "${LIBC_SRCTOP}/quad/Makefile.inc"
 104 .endif
 105 .include "${LIBC_SRCTOP}/regex/Makefile.inc"
 106 .include "${LIBC_SRCTOP}/resolv/Makefile.inc"
 107 .include "${LIBC_SRCTOP}/stdio/Makefile.inc"
 108 .include "${LIBC_SRCTOP}/stdlib/Makefile.inc"
 109 .include "${LIBC_SRCTOP}/stdlib/jemalloc/Makefile.inc"
 110 .include "${LIBC_SRCTOP}/stdtime/Makefile.inc"
 111 .include "${LIBC_SRCTOP}/string/Makefile.inc"
 112 .include "${LIBC_SRCTOP}/sys/Makefile.inc"
 113 .include "${LIBC_SRCTOP}/secure/Makefile.inc"
 114 .include "${LIBC_SRCTOP}/rpc/Makefile.inc"
 115 .include "${LIBC_SRCTOP}/uuid/Makefile.inc"
 116 .include "${LIBC_SRCTOP}/xdr/Makefile.inc"
 117 .if (${LIBC_ARCH} == "arm" && \
 118         (${MACHINE_ARCH:Marmv[67]*} == "" || (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))) || \
 119     (${LIBC_ARCH} == "mips" && ${MACHINE_ARCH:Mmips*hf} == "") || \
 120     (${LIBC_ARCH} == "riscv" && ${MACHINE_ARCH:Mriscv*sf} != "")
 121 .include "${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 CFLAGS+= -DSYMBOL_VERSIONING
 150
 151 # If there are no machine dependent sources, append all the
 152 # machine-independent sources:
 153 .if empty(MDSRCS)
 154 SRCS+=  ${MISRCS}
 155 .else
 156 # Append machine-dependent sources, then append machine-independent sources
 157 # for which there is no machine-dependent variant.
 158 SRCS+=  ${MDSRCS}
 159 .for _src in ${MISRCS}
 160 .if ${MDSRCS:R:M${_src:R}} == ""
 161 SRCS+=  ${_src}
 162 .endif
 163 .endfor
 164 .endif
 165
 166 KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
 167         lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
 168         subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
 169 KSRCS=  bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
 170         strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
 171
 172 libkern: libkern.gen libkern.${LIBC_ARCH}
 173
 174 libkern.gen: ${KQSRCS} ${KSRCS}
 175         ${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
 176
 177 libkern.${LIBC_ARCH}:: ${KMSRCS}
 178 .if defined(KMSRCS) && !empty(KMSRCS)
 179         ${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
 180 .endif
 181
 182 HAS_TESTS=
 183 SUBDIR.${MK_TESTS}+= tests
 184
 185 .include <bsd.lib.mk>
 186
 187 .if (${LIBC_ARCH} == amd64 || ${LIBC_ARCH} == i386) && \
 188     ${.TARGETS:Mall} == all && \
 189     defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == ""
 190 .error ${LIBC_ARCH} libc requires linker ifunc support
 191 .endif
 192
 193 .if !defined(_SKIP_BUILD)
 194 # We need libutil.h, get it directly to avoid
 195 # recording a build dependency
 196 CFLAGS+= -I${SRCTOP}/lib/libutil
 197 # Same issue with libm
 198 MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR
 199 # unfortunately msun/src contains both private and public headers
 200 CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR}
 201 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 202 CFLAGS+= -I${SRCTOP}/lib/msun/x86
 203 .endif
 204 CFLAGS+= -I${SRCTOP}/lib/msun/src
 205 # and we do not want to record a dependency on msun
 206 .if ${.MAKE.LEVEL} > 0
 207 GENDIRDEPS_FILTER+= N${RELDIR:H}/msun
 208 .endif
 209 .endif
 210
 211 # Disable warnings in contributed sources.
 212 CWARNFLAGS:=    ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
 213 # Disable stack protection for SSP symbols.
 214 SSP_CFLAGS:=    ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
 215 # Generate stack unwinding tables for cancellation points
 216 CANCELPOINTS_CFLAGS:=   ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}