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=${MACHINE_CPUARCH}
  22 .endif
  23
  24 # All library objects contain FreeBSD revision strings by default; they may be
  25 # excluded as a space-saving measure.  To produce a library that does
  26 # not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAGS
  27 # below.  Note: there are no IDs for syscall stubs whose sources are generated.
  28 # To include legacy CSRG sccsid strings, add -DLIBC_SCCS and -DSYSLIBC_SCCS
  29 # to CFLAGS below.  -DSYSLIBC_SCCS affects just the system call stubs.
  30 LIB=c
  31 SHLIB_MAJOR= 7
  32 SHLIB_LDSCRIPT=libc.ldscript
  33 SHLIB_LDSCRIPT_LINKS=libxnet.so
  34 WARNS?= 2
  35 CFLAGS+=-I${LIBC_SRCTOP}/include -I${LIBC_SRCTOP}/../../include
  36 CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH}
  37 .if ${MK_NLS} != "no"
  38 CFLAGS+=-DNLS
  39 .endif
  40 CLEANFILES+=tags
  41 INSTALL_PIC_ARCHIVE=
  42 PRECIOUSLIB=
  43
  44 .ifndef NO_THREAD_STACK_UNWIND
  45 CANCELPOINTS_CFLAGS=-fexceptions
  46 CFLAGS+=${CANCELPOINTS_CFLAGS}
  47 .endif
  48
  49 #
  50 # Link with static libcompiler_rt.a.
  51 #
  52 LDFLAGS+= -nodefaultlibs
  53 LIBADD+=        compiler_rt
  54
  55 .if ${MK_SSP} != "no"
  56 LIBADD+=        ssp_nonshared
  57 .endif
  58
  59 # Extras that live in either libc.a or libc_nonshared.a
  60 LIBC_NONSHARED_SRCS=
  61
  62 # Define (empty) variables so that make doesn't give substitution
  63 # errors if the included makefiles don't change these:
  64 MDSRCS=
  65 MISRCS=
  66 MDASM=
  67 MIASM=
  68 NOASM=
  69
  70 .include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc"
  71 .include "${LIBC_SRCTOP}/db/Makefile.inc"
  72 .include "${LIBC_SRCTOP}/compat-43/Makefile.inc"
  73 .include "${LIBC_SRCTOP}/gdtoa/Makefile.inc"
  74 .include "${LIBC_SRCTOP}/gen/Makefile.inc"
  75 .include "${LIBC_SRCTOP}/gmon/Makefile.inc"
  76 .if ${MK_ICONV} != "no"
  77 .include "${LIBC_SRCTOP}/iconv/Makefile.inc"
  78 .endif
  79 .include "${LIBC_SRCTOP}/inet/Makefile.inc"
  80 .include "${LIBC_SRCTOP}/isc/Makefile.inc"
  81 .include "${LIBC_SRCTOP}/locale/Makefile.inc"
  82 .include "${LIBC_SRCTOP}/md/Makefile.inc"
  83 .include "${LIBC_SRCTOP}/nameser/Makefile.inc"
  84 .include "${LIBC_SRCTOP}/net/Makefile.inc"
  85 .include "${LIBC_SRCTOP}/nls/Makefile.inc"
  86 .include "${LIBC_SRCTOP}/posix1e/Makefile.inc"
  87 .if ${LIBC_ARCH} != "aarch64" && \
  88     ${LIBC_ARCH} != "amd64" && \
  89     ${LIBC_ARCH} != "powerpc64" && \
  90     ${LIBC_ARCH} != "riscv" && \
  91     ${LIBC_ARCH} != "sparc64" && \
  92     ${MACHINE_ARCH:Mmipsn32*} == "" && \
  93     ${MACHINE_ARCH:Mmips64*} == ""
  94 .include "${LIBC_SRCTOP}/quad/Makefile.inc"
  95 .endif
  96 .include "${LIBC_SRCTOP}/regex/Makefile.inc"
  97 .include "${LIBC_SRCTOP}/resolv/Makefile.inc"
  98 .include "${LIBC_SRCTOP}/stdio/Makefile.inc"
  99 .include "${LIBC_SRCTOP}/stdlib/Makefile.inc"
 100 .include "${LIBC_SRCTOP}/stdlib/jemalloc/Makefile.inc"
 101 .include "${LIBC_SRCTOP}/stdtime/Makefile.inc"
 102 .include "${LIBC_SRCTOP}/string/Makefile.inc"
 103 .include "${LIBC_SRCTOP}/sys/Makefile.inc"
 104 .include "${LIBC_SRCTOP}/secure/Makefile.inc"
 105 .include "${LIBC_SRCTOP}/rpc/Makefile.inc"
 106 .include "${LIBC_SRCTOP}/uuid/Makefile.inc"
 107 .include "${LIBC_SRCTOP}/xdr/Makefile.inc"
 108 .if (${LIBC_ARCH} == "arm" && \
 109         (${MACHINE_ARCH:Marmv6*} == "" || (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))) || \
 110      ${LIBC_ARCH} == "mips"
 111 .include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
 112 .endif
 113 .if ${MK_NIS} != "no"
 114 CFLAGS+= -DYP
 115 .include "${LIBC_SRCTOP}/yp/Makefile.inc"
 116 .endif
 117 .include "${LIBC_SRCTOP}/capability/Makefile.inc"
 118 .if ${MK_HESIOD} != "no"
 119 CFLAGS+= -DHESIOD
 120 .endif
 121 .if ${MK_FP_LIBC} == "no"
 122 CFLAGS+= -DNO_FLOATING_POINT
 123 .endif
 124 .if ${MK_NS_CACHING} != "no"
 125 CFLAGS+= -DNS_CACHING
 126 .endif
 127 .if defined(_FREEFALL_CONFIG)
 128 CFLAGS+=-D_FREEFALL_CONFIG
 129 .endif
 130
 131 STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/}
 132
 133 VERSION_DEF=${LIBC_SRCTOP}/Versions.def
 134 SYMBOL_MAPS=${SYM_MAPS}
 135 CFLAGS+= -DSYMBOL_VERSIONING
 136
 137 # If there are no machine dependent sources, append all the
 138 # machine-independent sources:
 139 .if empty(MDSRCS)
 140 SRCS+=  ${MISRCS}
 141 .else
 142 # Append machine-dependent sources, then append machine-independent sources
 143 # for which there is no machine-dependent variant.
 144 SRCS+=  ${MDSRCS}
 145 .for _src in ${MISRCS}
 146 .if ${MDSRCS:R:M${_src:R}} == ""
 147 SRCS+=  ${_src}
 148 .endif
 149 .endfor
 150 .endif
 151
 152 KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
 153         lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
 154         subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
 155 KSRCS=  bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
 156         strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
 157
 158 libkern: libkern.gen libkern.${LIBC_ARCH}
 159
 160 libkern.gen: ${KQSRCS} ${KSRCS}
 161         ${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
 162
 163 libkern.${LIBC_ARCH}:: ${KMSRCS}
 164 .if defined(KMSRCS) && !empty(KMSRCS)
 165         ${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
 166 .endif
 167
 168 .if ${MK_TESTS} != "no"
 169 SUBDIR+=        tests
 170 .endif
 171
 172 .include <bsd.lib.mk>
 173
 174 .if !defined(_SKIP_BUILD)
 175 # We need libutil.h, get it directly to avoid
 176 # recording a build dependency
 177 CFLAGS+= -I${SRCTOP}/lib/libutil
 178 # Same issue with libm
 179 MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR
 180 # unfortunately msun/src contains both private and public headers
 181 CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR}
 182 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 183 CFLAGS+= -I${SRCTOP}/lib/msun/x86
 184 .endif
 185 CFLAGS+= -I${SRCTOP}/lib/msun/src
 186 # and we do not want to record a dependency on msun
 187 .if ${.MAKE.LEVEL} > 0
 188 GENDIRDEPS_FILTER+= N${RELDIR:H}/msun
 189 .endif
 190 .endif
 191
 192 # Disable warnings in contributed sources.
 193 CWARNFLAGS:=    ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
 194 # XXX For now, we don't allow libc to be compiled with
 195 # -fstack-protector-all because it breaks rtld.  We may want to make a librtld
 196 # in the future to circumvent this.
 197 SSP_CFLAGS:=    ${SSP_CFLAGS:S/^-fstack-protector-all$/-fstack-protector/}
 198 # Disable stack protection for SSP symbols.
 199 SSP_CFLAGS:=    ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
 200 # Generate stack unwinding tables for cancellation points
 201 CANCELPOINTS_CFLAGS:=   ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}