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 sccsid strings, add -DLIBC_SCCS and -DSYSLIBC_SCCS
  29 # to CFLAGS below.  -DSYSLIBC_SCCS affects just the system call stubs.
  30 LIB=c
  31 SHLIB_MAJOR= 7
  32 .if ${MK_SSP} != "no"
  33 SHLIB_LDSCRIPT=libc.ldscript
  34 .else
  35 SHLIB_LDSCRIPT=libc_nossp.ldscript
  36 .endif
  37 SHLIB_LDSCRIPT_LINKS=libxnet.so
  38 WARNS?= 2
  39 CFLAGS+=-I${LIBC_SRCTOP}/include -I${SRCTOP}/include
  40 CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH}
  41 .if ${MK_NLS} != "no"
  42 CFLAGS+=-DNLS
  43 .endif
  44 CLEANFILES+=tags
  45 INSTALL_PIC_ARCHIVE=
  46 PRECIOUSLIB=
  47
  48 .ifndef NO_THREAD_STACK_UNWIND
  49 CANCELPOINTS_CFLAGS=-fexceptions
  50 CFLAGS+=${CANCELPOINTS_CFLAGS}
  51 .endif
  52
  53 #
  54 # Link with static libcompiler_rt.a.
  55 #
  56 LDFLAGS+= -nodefaultlibs
  57 LIBADD+=        compiler_rt
  58
  59 .if ${MK_SSP} != "no"
  60 LIBADD+=        ssp_nonshared
  61 .endif
  62
  63 # Extras that live in either libc.a or libc_nonshared.a
  64 LIBC_NONSHARED_SRCS=
  65
  66 # Define (empty) variables so that make doesn't give substitution
  67 # errors if the included makefiles don't change these:
  68 MDSRCS=
  69 MISRCS=
  70 MDASM=
  71 MIASM=
  72 NOASM=
  73
  74 .include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc"
  75 .include "${LIBC_SRCTOP}/db/Makefile.inc"
  76 .include "${LIBC_SRCTOP}/compat-43/Makefile.inc"
  77 .include "${LIBC_SRCTOP}/gdtoa/Makefile.inc"
  78 .include "${LIBC_SRCTOP}/gen/Makefile.inc"
  79 .include "${LIBC_SRCTOP}/gmon/Makefile.inc"
  80 .if ${MK_ICONV} != "no"
  81 .include "${LIBC_SRCTOP}/iconv/Makefile.inc"
  82 .endif
  83 .include "${LIBC_SRCTOP}/inet/Makefile.inc"
  84 .include "${LIBC_SRCTOP}/isc/Makefile.inc"
  85 .include "${LIBC_SRCTOP}/locale/Makefile.inc"
  86 .include "${LIBC_SRCTOP}/md/Makefile.inc"
  87 .include "${LIBC_SRCTOP}/nameser/Makefile.inc"
  88 .include "${LIBC_SRCTOP}/net/Makefile.inc"
  89 .include "${LIBC_SRCTOP}/nls/Makefile.inc"
  90 .include "${LIBC_SRCTOP}/posix1e/Makefile.inc"
  91 .if ${LIBC_ARCH} != "aarch64" && \
  92     ${LIBC_ARCH} != "amd64" && \
  93     ${LIBC_ARCH} != "powerpc64" && \
  94     ${LIBC_ARCH} != "riscv" && \
  95     ${LIBC_ARCH} != "sparc64" && \
  96     ${MACHINE_ARCH:Mmipsn32*} == "" && \
  97     ${MACHINE_ARCH:Mmips64*} == ""
  98 .include "${LIBC_SRCTOP}/quad/Makefile.inc"
  99 .endif
 100 .include "${LIBC_SRCTOP}/regex/Makefile.inc"
 101 .include "${LIBC_SRCTOP}/resolv/Makefile.inc"
 102 .include "${LIBC_SRCTOP}/stdio/Makefile.inc"
 103 .include "${LIBC_SRCTOP}/stdlib/Makefile.inc"
 104 .include "${LIBC_SRCTOP}/stdlib/jemalloc/Makefile.inc"
 105 .include "${LIBC_SRCTOP}/stdtime/Makefile.inc"
 106 .include "${LIBC_SRCTOP}/string/Makefile.inc"
 107 .include "${LIBC_SRCTOP}/sys/Makefile.inc"
 108 .include "${LIBC_SRCTOP}/secure/Makefile.inc"
 109 .include "${LIBC_SRCTOP}/rpc/Makefile.inc"
 110 .include "${LIBC_SRCTOP}/uuid/Makefile.inc"
 111 .include "${LIBC_SRCTOP}/xdr/Makefile.inc"
 112 .if (${LIBC_ARCH} == "arm" && \
 113         (${MACHINE_ARCH:Marmv[67]*} == "" || (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))) || \
 114     (${LIBC_ARCH} == "mips" && ${MACHINE_ARCH:Mmips*hf} == "") || \
 115     (${LIBC_ARCH} == "riscv" && ${MACHINE_ARCH:Mriscv*sf} != "")
 116 .include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
 117 .endif
 118 .if ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "amd64"
 119 .include "${LIBC_SRCTOP}/x86/sys/Makefile.inc"
 120 .endif
 121 .if ${MK_NIS} != "no"
 122 CFLAGS+= -DYP
 123 .include "${LIBC_SRCTOP}/yp/Makefile.inc"
 124 .endif
 125 .include "${LIBC_SRCTOP}/capability/Makefile.inc"
 126 .if ${MK_HESIOD} != "no"
 127 CFLAGS+= -DHESIOD
 128 .endif
 129 .if ${MK_FP_LIBC} == "no"
 130 CFLAGS+= -DNO_FLOATING_POINT
 131 .endif
 132 .if ${MK_NS_CACHING} != "no"
 133 CFLAGS+= -DNS_CACHING
 134 .endif
 135 .if defined(_FREEFALL_CONFIG)
 136 CFLAGS+=-D_FREEFALL_CONFIG
 137 .endif
 138
 139 STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/}
 140
 141 VERSION_DEF=${LIBC_SRCTOP}/Versions.def
 142 SYMBOL_MAPS=${SYM_MAPS}
 143 CFLAGS+= -DSYMBOL_VERSIONING
 144
 145 # If there are no machine dependent sources, append all the
 146 # machine-independent sources:
 147 .if empty(MDSRCS)
 148 SRCS+=  ${MISRCS}
 149 .else
 150 # Append machine-dependent sources, then append machine-independent sources
 151 # for which there is no machine-dependent variant.
 152 SRCS+=  ${MDSRCS}
 153 .for _src in ${MISRCS}
 154 .if ${MDSRCS:R:M${_src:R}} == ""
 155 SRCS+=  ${_src}
 156 .endif
 157 .endfor
 158 .endif
 159
 160 KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
 161         lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
 162         subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
 163 KSRCS=  bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
 164         strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
 165
 166 libkern: libkern.gen libkern.${LIBC_ARCH}
 167
 168 libkern.gen: ${KQSRCS} ${KSRCS}
 169         ${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
 170
 171 libkern.${LIBC_ARCH}:: ${KMSRCS}
 172 .if defined(KMSRCS) && !empty(KMSRCS)
 173         ${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
 174 .endif
 175
 176 HAS_TESTS=
 177 SUBDIR.${MK_TESTS}+= tests
 178
 179 .include <bsd.lib.mk>
 180
 181 .if !defined(_SKIP_BUILD)
 182 # We need libutil.h, get it directly to avoid
 183 # recording a build dependency
 184 CFLAGS+= -I${SRCTOP}/lib/libutil
 185 # Same issue with libm
 186 MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR
 187 # unfortunately msun/src contains both private and public headers
 188 CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR}
 189 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 190 CFLAGS+= -I${SRCTOP}/lib/msun/x86
 191 .endif
 192 CFLAGS+= -I${SRCTOP}/lib/msun/src
 193 # and we do not want to record a dependency on msun
 194 .if ${.MAKE.LEVEL} > 0
 195 GENDIRDEPS_FILTER+= N${RELDIR:H}/msun
 196 .endif
 197 .endif
 198
 199 # Disable warnings in contributed sources.
 200 CWARNFLAGS:=    ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
 201 # XXX For now, we don't allow libc to be compiled with
 202 # -fstack-protector-all because it breaks rtld.  We may want to make a librtld
 203 # in the future to circumvent this.
 204 SSP_CFLAGS:=    ${SSP_CFLAGS:S/^-fstack-protector-all$/-fstack-protector/}
 205 # Disable stack protection for SSP symbols.
 206 SSP_CFLAGS:=    ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
 207 # Generate stack unwinding tables for cancellation points
 208 CANCELPOINTS_CFLAGS:=   ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}