lib/libc/Makefile

   1 #       @(#)Makefile    8.2 (Berkeley) 2/3/94
   2 # $FreeBSD$
   3
   4 SHLIBDIR?= /lib
   5
   6 .include <src.opts.mk>
   7
   8 LIBC_SRCTOP?= ${.CURDIR}
   9
  10 # Pick the current architecture directory for libc. In general, this is
  11 # named MACHINE_CPUARCH, but some ABIs are different enough to require
  12 # their own libc, so allow a directory named MACHINE_ARCH to override this.
  13
  14 .if exists(${LIBC_SRCTOP}/${MACHINE_ARCH})
  15 LIBC_ARCH=${MACHINE_ARCH}
  16 .else
  17 LIBC_ARCH=${MACHINE_CPUARCH}
  18 .endif
  19
  20 # All library objects contain FreeBSD revision strings by default; they may be
  21 # excluded as a space-saving measure.  To produce a library that does
  22 # not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAGS
  23 # below.  Note: there are no IDs for syscall stubs whose sources are generated.
  24 # To include legacy CSRG sccsid strings, add -DLIBC_SCCS and -DSYSLIBC_SCCS
  25 # to CFLAGS below.  -DSYSLIBC_SCCS affects just the system call stubs.
  26 LIB=c
  27 SHLIB_MAJOR= 7
  28 SHLIB_LDSCRIPT=libc.ldscript
  29 WARNS?= 2
  30 CFLAGS+=-I${LIBC_SRCTOP}/include -I${LIBC_SRCTOP}/../../include
  31 CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH}
  32 .if ${MK_NLS} != "no"
  33 CFLAGS+=-DNLS
  34 .endif
  35 CLEANFILES+=tags
  36 INSTALL_PIC_ARCHIVE=
  37 PRECIOUSLIB=
  38
  39 .ifndef NO_THREAD_STACK_UNWIND
  40 CANCELPOINTS_CFLAGS=-fexceptions
  41 CFLAGS+=${CANCELPOINTS_CFLAGS}
  42 .endif
  43
  44 #
  45 # Link with static libcompiler_rt.a.
  46 #
  47 LDFLAGS+= -nodefaultlibs
  48 LIBADD+=        compiler_rt
  49
  50 .if ${MK_SSP} != "no"
  51 LIBADD+=        ssp_nonshared
  52 .endif
  53
  54 # Extras that live in either libc.a or libc_nonshared.a
  55 LIBC_NONSHARED_SRCS=
  56
  57 # Define (empty) variables so that make doesn't give substitution
  58 # errors if the included makefiles don't change these:
  59 MDSRCS=
  60 MISRCS=
  61 MDASM=
  62 MIASM=
  63 NOASM=
  64
  65 .include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc"
  66 .include "${LIBC_SRCTOP}/db/Makefile.inc"
  67 .include "${LIBC_SRCTOP}/compat-43/Makefile.inc"
  68 .include "${LIBC_SRCTOP}/gdtoa/Makefile.inc"
  69 .include "${LIBC_SRCTOP}/gen/Makefile.inc"
  70 .include "${LIBC_SRCTOP}/gmon/Makefile.inc"
  71 .if ${MK_ICONV} != "no"
  72 .include "${LIBC_SRCTOP}/iconv/Makefile.inc"
  73 .endif
  74 .include "${LIBC_SRCTOP}/inet/Makefile.inc"
  75 .include "${LIBC_SRCTOP}/isc/Makefile.inc"
  76 .include "${LIBC_SRCTOP}/locale/Makefile.inc"
  77 .include "${LIBC_SRCTOP}/md/Makefile.inc"
  78 .include "${LIBC_SRCTOP}/nameser/Makefile.inc"
  79 .include "${LIBC_SRCTOP}/net/Makefile.inc"
  80 .include "${LIBC_SRCTOP}/nls/Makefile.inc"
  81 .include "${LIBC_SRCTOP}/posix1e/Makefile.inc"
  82 .if ${LIBC_ARCH} != "aarch64" && \
  83     ${LIBC_ARCH} != "amd64" && \
  84     ${LIBC_ARCH} != "powerpc64" && \
  85     ${LIBC_ARCH} != "sparc64" && \
  86     ${MACHINE_ARCH:Mmipsn32*} == "" && \
  87     ${MACHINE_ARCH:Mmips64*} == ""
  88 .include "${LIBC_SRCTOP}/quad/Makefile.inc"
  89 .endif
  90 .include "${LIBC_SRCTOP}/regex/Makefile.inc"
  91 .include "${LIBC_SRCTOP}/resolv/Makefile.inc"
  92 .include "${LIBC_SRCTOP}/stdio/Makefile.inc"
  93 .include "${LIBC_SRCTOP}/stdlib/Makefile.inc"
  94 .include "${LIBC_SRCTOP}/stdlib/jemalloc/Makefile.inc"
  95 .include "${LIBC_SRCTOP}/stdtime/Makefile.inc"
  96 .include "${LIBC_SRCTOP}/string/Makefile.inc"
  97 .include "${LIBC_SRCTOP}/sys/Makefile.inc"
  98 .include "${LIBC_SRCTOP}/rpc/Makefile.inc"
  99 .include "${LIBC_SRCTOP}/uuid/Makefile.inc"
 100 .include "${LIBC_SRCTOP}/xdr/Makefile.inc"
 101 .if (${LIBC_ARCH} == "arm" && ${MACHINE_ARCH} != "armv6hf") ||\
 102      ${LIBC_ARCH} == "mips"
 103 .include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
 104 .endif
 105 .if ${MK_NIS} != "no"
 106 CFLAGS+= -DYP
 107 .include "${LIBC_SRCTOP}/yp/Makefile.inc"
 108 .endif
 109 .include "${LIBC_SRCTOP}/capability/Makefile.inc"
 110 .if ${MK_HESIOD} != "no"
 111 CFLAGS+= -DHESIOD
 112 .endif
 113 .if ${MK_FP_LIBC} == "no"
 114 CFLAGS+= -DNO_FLOATING_POINT
 115 .endif
 116 .if ${MK_NS_CACHING} != "no"
 117 CFLAGS+= -DNS_CACHING
 118 .endif
 119 .if defined(_FREEFALL_CONFIG)
 120 CFLAGS+=-D_FREEFALL_CONFIG
 121 .endif
 122
 123 STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/}
 124
 125 VERSION_DEF=${LIBC_SRCTOP}/Versions.def
 126 SYMBOL_MAPS=${SYM_MAPS}
 127 CFLAGS+= -DSYMBOL_VERSIONING
 128
 129 # If there are no machine dependent sources, append all the
 130 # machine-independent sources:
 131 .if empty(MDSRCS)
 132 SRCS+=  ${MISRCS}
 133 .else
 134 # Append machine-dependent sources, then append machine-independent sources
 135 # for which there is no machine-dependent variant.
 136 SRCS+=  ${MDSRCS}
 137 .for _src in ${MISRCS}
 138 .if ${MDSRCS:R:M${_src:R}} == ""
 139 SRCS+=  ${_src}
 140 .endif
 141 .endfor
 142 .endif
 143
 144 KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
 145         lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
 146         subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
 147 KSRCS=  bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
 148         strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
 149
 150 libkern: libkern.gen libkern.${LIBC_ARCH}
 151
 152 libkern.gen: ${KQSRCS} ${KSRCS}
 153         ${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
 154
 155 libkern.${LIBC_ARCH}:: ${KMSRCS}
 156 .if defined(KMSRCS) && !empty(KMSRCS)
 157         ${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
 158 .endif
 159
 160 .if ${MK_TESTS} != "no"
 161 SUBDIR+=        tests
 162 .endif
 163
 164 .include <bsd.lib.mk>
 165
 166 .if !defined(_SKIP_BUILD)
 167 # We need libutil.h, get it directly to avoid
 168 # recording a build dependency
 169 CFLAGS+= -I${.CURDIR:H}/libutil
 170 # Same issue with libm
 171 MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${.CURDIR:H}/msun -V ARCH_SUBDIR
 172 # unfortunately msun/src contains both private and public headers
 173 CFLAGS+= -I${.CURDIR:H}/msun/${MSUN_ARCH_SUBDIR}
 174 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 175 CFLAGS+= -I${.CURDIR:H}/msun/x86
 176 .endif
 177 CFLAGS+= -I${.CURDIR:H}/msun/src
 178 # and we do not want to record a dependency on msun
 179 .if ${.MAKE.LEVEL} > 0
 180 GENDIRDEPS_FILTER+= N${RELDIR:H}/msun
 181 .endif
 182 .endif
 183
 184 # Disable warnings in contributed sources.
 185 CWARNFLAGS:=    ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
 186 # XXX For now, we don't allow libc to be compiled with
 187 # -fstack-protector-all because it breaks rtld.  We may want to make a librtld
 188 # in the future to circumvent this.
 189 SSP_CFLAGS:=    ${SSP_CFLAGS:S/^-fstack-protector-all$/-fstack-protector/}
 190 # Disable stack protection for SSP symbols.
 191 SSP_CFLAGS:=    ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
 192 # Generate stack unwinding tables for cancellation points
 193 CANCELPOINTS_CFLAGS:=   ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}