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}/${MACHINE_ARCH})
  19 LIBC_ARCH=${MACHINE_ARCH}
  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 ${MK_SSP} != "no"
  35 SHLIB_LDSCRIPT=libc.ldscript
  36 .else
  37 SHLIB_LDSCRIPT=libc_nossp.ldscript
  38 .endif
  39 SHLIB_LDSCRIPT_LINKS=libxnet.so
  40 WARNS?= 2
  41 CFLAGS+=-I${LIBC_SRCTOP}/include -I${SRCTOP}/include
  42 CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH}
  43 .if ${MK_NLS} != "no"
  44 CFLAGS+=-DNLS
  45 .endif
  46 CLEANFILES+=tags
  47 INSTALL_PIC_ARCHIVE=
  48 BUILD_NOSSP_PIC_ARCHIVE=
  49 PRECIOUSLIB=
  50
  51 .ifndef NO_THREAD_STACK_UNWIND
  52 CANCELPOINTS_CFLAGS=-fexceptions
  53 CFLAGS+=${CANCELPOINTS_CFLAGS}
  54 .endif
  55
  56 #
  57 # Link with static libcompiler_rt.a.
  58 #
  59 LDFLAGS+= -nodefaultlibs
  60 LIBADD+=        compiler_rt
  61
  62 .if ${MK_SSP} != "no"
  63 LIBADD+=        ssp_nonshared
  64 .endif
  65
  66 # Extras that live in either libc.a or libc_nonshared.a
  67 LIBC_NONSHARED_SRCS=
  68
  69 # Define (empty) variables so that make doesn't give substitution
  70 # errors if the included makefiles don't change these:
  71 MDSRCS=
  72 MISRCS=
  73 MDASM=
  74 MIASM=
  75 NOASM=
  76
  77 .include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc"
  78 .include "${LIBC_SRCTOP}/db/Makefile.inc"
  79 .include "${LIBC_SRCTOP}/compat-43/Makefile.inc"
  80 .include "${LIBC_SRCTOP}/gdtoa/Makefile.inc"
  81 .include "${LIBC_SRCTOP}/gen/Makefile.inc"
  82 .include "${LIBC_SRCTOP}/gmon/Makefile.inc"
  83 .if ${MK_ICONV} != "no"
  84 .include "${LIBC_SRCTOP}/iconv/Makefile.inc"
  85 .endif
  86 .include "${LIBC_SRCTOP}/inet/Makefile.inc"
  87 .include "${LIBC_SRCTOP}/isc/Makefile.inc"
  88 .include "${LIBC_SRCTOP}/locale/Makefile.inc"
  89 .include "${LIBC_SRCTOP}/md/Makefile.inc"
  90 .include "${LIBC_SRCTOP}/nameser/Makefile.inc"
  91 .include "${LIBC_SRCTOP}/net/Makefile.inc"
  92 .include "${LIBC_SRCTOP}/nls/Makefile.inc"
  93 .include "${LIBC_SRCTOP}/posix1e/Makefile.inc"
  94 .if ${LIBC_ARCH} != "aarch64" && \
  95     ${LIBC_ARCH} != "amd64" && \
  96     ${LIBC_ARCH} != "powerpc64" && \
  97     ${LIBC_ARCH} != "riscv" && \
  98     ${LIBC_ARCH} != "sparc64" && \
  99     ${MACHINE_ARCH:Mmipsn32*} == "" && \
 100     ${MACHINE_ARCH:Mmips64*} == ""
 101 .include "${LIBC_SRCTOP}/quad/Makefile.inc"
 102 .endif
 103 .include "${LIBC_SRCTOP}/regex/Makefile.inc"
 104 .include "${LIBC_SRCTOP}/resolv/Makefile.inc"
 105 .include "${LIBC_SRCTOP}/stdio/Makefile.inc"
 106 .include "${LIBC_SRCTOP}/stdlib/Makefile.inc"
 107 .include "${LIBC_SRCTOP}/stdlib/jemalloc/Makefile.inc"
 108 .include "${LIBC_SRCTOP}/stdtime/Makefile.inc"
 109 .include "${LIBC_SRCTOP}/string/Makefile.inc"
 110 .include "${LIBC_SRCTOP}/sys/Makefile.inc"
 111 .include "${LIBC_SRCTOP}/secure/Makefile.inc"
 112 .include "${LIBC_SRCTOP}/rpc/Makefile.inc"
 113 .include "${LIBC_SRCTOP}/uuid/Makefile.inc"
 114 .include "${LIBC_SRCTOP}/xdr/Makefile.inc"
 115 .if (${LIBC_ARCH} == "arm" && \
 116         (${MACHINE_ARCH:Marmv[67]*} == "" || (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))) || \
 117     (${LIBC_ARCH} == "mips" && ${MACHINE_ARCH:Mmips*hf} == "") || \
 118     (${LIBC_ARCH} == "riscv" && ${MACHINE_ARCH:Mriscv*sf} != "")
 119 .include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
 120 .endif
 121 .if ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "amd64"
 122 .include "${LIBC_SRCTOP}/x86/sys/Makefile.inc"
 123 .include "${LIBC_SRCTOP}/x86/gen/Makefile.inc"
 124 .endif
 125 .if ${MK_NIS} != "no"
 126 CFLAGS+= -DYP
 127 .include "${LIBC_SRCTOP}/yp/Makefile.inc"
 128 .endif
 129 .include "${LIBC_SRCTOP}/capability/Makefile.inc"
 130 .if ${MK_HESIOD} != "no"
 131 CFLAGS+= -DHESIOD
 132 .endif
 133 .if ${MK_FP_LIBC} == "no"
 134 CFLAGS+= -DNO_FLOATING_POINT
 135 .endif
 136 .if ${MK_NS_CACHING} != "no"
 137 CFLAGS+= -DNS_CACHING
 138 .endif
 139 .if defined(_FREEFALL_CONFIG)
 140 CFLAGS+=-D_FREEFALL_CONFIG
 141 .endif
 142
 143 STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/}
 144
 145 VERSION_DEF=${LIBC_SRCTOP}/Versions.def
 146 SYMBOL_MAPS=${SYM_MAPS}
 147 CFLAGS+= -DSYMBOL_VERSIONING
 148
 149 # If there are no machine dependent sources, append all the
 150 # machine-independent sources:
 151 .if empty(MDSRCS)
 152 SRCS+=  ${MISRCS}
 153 .else
 154 # Append machine-dependent sources, then append machine-independent sources
 155 # for which there is no machine-dependent variant.
 156 SRCS+=  ${MDSRCS}
 157 .for _src in ${MISRCS}
 158 .if ${MDSRCS:R:M${_src:R}} == ""
 159 SRCS+=  ${_src}
 160 .endif
 161 .endfor
 162 .endif
 163
 164 KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
 165         lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
 166         subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
 167 KSRCS=  bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
 168         strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
 169
 170 libkern: libkern.gen libkern.${LIBC_ARCH}
 171
 172 libkern.gen: ${KQSRCS} ${KSRCS}
 173         ${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
 174
 175 libkern.${LIBC_ARCH}:: ${KMSRCS}
 176 .if defined(KMSRCS) && !empty(KMSRCS)
 177         ${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
 178 .endif
 179
 180 HAS_TESTS=
 181 SUBDIR.${MK_TESTS}+= tests
 182
 183 .include <bsd.lib.mk>
 184
 185 .if (${LIBC_ARCH} == amd64 || ${LIBC_ARCH} == i386) && \
 186     ${.TARGETS:Mall} == all && \
 187     defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == ""
 188 .error ${LIBC_ARCH} libc requires linker ifunc support
 189 .endif
 190
 191 .if !defined(_SKIP_BUILD)
 192 # We need libutil.h, get it directly to avoid
 193 # recording a build dependency
 194 CFLAGS+= -I${SRCTOP}/lib/libutil
 195 # Same issue with libm
 196 MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR
 197 # unfortunately msun/src contains both private and public headers
 198 CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR}
 199 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 200 CFLAGS+= -I${SRCTOP}/lib/msun/x86
 201 .endif
 202 CFLAGS+= -I${SRCTOP}/lib/msun/src
 203 # and we do not want to record a dependency on msun
 204 .if ${.MAKE.LEVEL} > 0
 205 GENDIRDEPS_FILTER+= N${RELDIR:H}/msun
 206 .endif
 207 .endif
 208
 209 # Disable warnings in contributed sources.
 210 CWARNFLAGS:=    ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
 211 # Disable stack protection for SSP symbols.
 212 SSP_CFLAGS:=    ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
 213 # Generate stack unwinding tables for cancellation points
 214 CANCELPOINTS_CFLAGS:=   ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}