1 2PACKAGE= clibs 3SHLIBDIR?= /lib 4 5.include <src.opts.mk> 6 7LIBC_SRCTOP?= ${.CURDIR} 8LIBSYS_SRCTOP?= ${.CURDIR:H}/libsys 9 10# Pick the current architecture directory for libc. In general, this is named 11# MACHINE_CPUARCH, but some ABIs are different enough to require their own libc, 12# so allow a directory named MACHINE_ARCH to override this (though treat 13# powerpc64le and powerpc64 the same). 14# Note: This is copied to msun/Makefile 15M=${MACHINE_ARCH:S/powerpc64le/powerpc64/} 16.if exists(${LIBC_SRCTOP}/${M}) 17LIBC_ARCH=${M} 18.else 19LIBC_ARCH=${MACHINE_CPUARCH} 20.endif 21 22# All library objects contain FreeBSD revision strings by default; they may be 23# excluded as a space-saving measure. To produce a library that does 24# not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAGS 25# below. Note: there are no IDs for syscall stubs whose sources are generated. 26# To include legacy CSRG SCCS ID strings, remove -DNO__SCCSID from CFLAGS. 27# To include RCS ID strings from other BSD projects, remove -DNO__RCSID from CFLAGS. 28CFLAGS+=-DNO__SCCSID -DNO__RCSID 29 30LIB=c 31SHLIB_MAJOR= 7 32.if ${MK_SSP} != "no" && \ 33 (${LIBC_ARCH} == "i386" || ${LIBC_ARCH:Mpowerpc*} != "") 34SHLIB_LDSCRIPT=libc.ldscript 35.else 36SHLIB_LDSCRIPT=libc_nossp.ldscript 37.endif 38SHLIB_LDSCRIPT_LINKS=libxnet.so 39WARNS?= 2 40CFLAGS+=-I${LIBC_SRCTOP}/include -I${SRCTOP}/include 41CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH} 42CFLAGS+=-I${LIBSYS_SRCTOP}/${LIBC_ARCH} 43.if ${MK_NLS} != "no" 44CFLAGS+=-DNLS 45.endif 46CLEANFILES+=tags 47INSTALL_PIC_ARCHIVE= 48BUILD_NOSSP_PIC_ARCHIVE= 49PRECIOUSLIB= 50 51.ifndef NO_THREAD_STACK_UNWIND 52CANCELPOINTS_CFLAGS=-fexceptions 53CFLAGS+=${CANCELPOINTS_CFLAGS} 54.endif 55 56# Use a more efficient TLS model for libc since we can reasonably assume that 57# it will be loaded during program startup. 58CFLAGS+= -ftls-model=initial-exec 59 60# 61# Link with static libcompiler_rt.a. 62# 63LDFLAGS+= -nodefaultlibs 64LIBADD+= compiler_rt 65LIBADD+= sys 66.if defined(COMPAT_libcompat) 67# XXX: work around gcc -m32 + bfd ld path issue for DT_NEEDED symbols. 68# https://sourceware.org/bugzilla/show_bug.cgi?id=31395 69LDFLAGS+= -Wl,--rpath=/usr/lib${COMPAT_libcompat} 70.endif 71 72LDFLAGS+=-Wl,--auxiliary,libsys.so.7 73 74.if ${MK_SSP} != "no" && \ 75 (${LIBC_ARCH} == "i386" || ${LIBC_ARCH:Mpowerpc*} != "") 76LIBADD+= ssp_nonshared 77.endif 78 79# Extras that live in either libc.a or libc_nonshared.a 80LIBC_NONSHARED_SRCS= 81 82RTLD_ELF_DIR=${SRCTOP}/libexec/rtld-elf 83.if exists(${RTLD_ELF_DIR}/${MACHINE_ARCH:S/powerpc64le/powerpc64/}) 84RTLD_ARCH= ${MACHINE_ARCH:S/powerpc64le/powerpc64/} 85.else 86RTLD_ARCH= ${MACHINE_CPUARCH} 87.endif 88RTLD_HDRS= -I${RTLD_ELF_DIR}/${RTLD_ARCH} -I${RTLD_ELF_DIR} 89 90# Define (empty) variables so that make doesn't give substitution 91# errors if the included makefiles don't change these: 92MDSRCS= 93MISRCS= 94MDASM= 95MIASM= 96NOASM= 97 98.include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc" 99.include "${LIBC_SRCTOP}/csu/Makefile.inc" 100.include "${LIBC_SRCTOP}/db/Makefile.inc" 101.include "${LIBC_SRCTOP}/compat-43/Makefile.inc" 102.include "${LIBC_SRCTOP}/gdtoa/Makefile.inc" 103.include "${LIBC_SRCTOP}/gen/Makefile.inc" 104.include "${LIBC_SRCTOP}/gmon/Makefile.inc" 105.if ${MK_ICONV} != "no" 106.include "${LIBC_SRCTOP}/iconv/Makefile.inc" 107.endif 108.include "${LIBC_SRCTOP}/inet/Makefile.inc" 109.include "${LIBC_SRCTOP}/isc/Makefile.inc" 110.include "${LIBC_SRCTOP}/locale/Makefile.inc" 111.include "${LIBC_SRCTOP}/md/Makefile.inc" 112.include "${LIBC_SRCTOP}/nameser/Makefile.inc" 113.include "${LIBC_SRCTOP}/net/Makefile.inc" 114.include "${LIBC_SRCTOP}/nls/Makefile.inc" 115.include "${LIBC_SRCTOP}/posix1e/Makefile.inc" 116.if ${MACHINE_ABI:Mlong32} 117.include "${LIBC_SRCTOP}/quad/Makefile.inc" 118.endif 119.include "${LIBC_SRCTOP}/regex/Makefile.inc" 120.include "${LIBC_SRCTOP}/resolv/Makefile.inc" 121.include "${LIBC_SRCTOP}/stdio/Makefile.inc" 122.include "${LIBC_SRCTOP}/stdlib/Makefile.inc" 123.include "${LIBC_SRCTOP}/stdtime/Makefile.inc" 124.include "${LIBC_SRCTOP}/string/Makefile.inc" 125.include "${LIBC_SRCTOP}/sys/Makefile.inc" 126.include "${LIBC_SRCTOP}/secure/Makefile.inc" 127.include "${LIBC_SRCTOP}/rpc/Makefile.inc" 128.include "${LIBC_SRCTOP}/uuid/Makefile.inc" 129.include "${LIBC_SRCTOP}/xdr/Makefile.inc" 130.if (${LIBC_ARCH} == "arm" && (defined(CPUTYPE) && ${CPUTYPE:M*soft*})) 131.include "${LIBC_SRCTOP}/softfloat/Makefile.inc" 132.endif 133.if ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "amd64" 134.include "${LIBC_SRCTOP}/x86/gen/Makefile.inc" 135.endif 136.if ${MK_NIS} != "no" 137CFLAGS+= -DYP 138.include "${LIBC_SRCTOP}/yp/Makefile.inc" 139.endif 140.include "${LIBC_SRCTOP}/capability/Makefile.inc" 141.if ${MK_HESIOD} != "no" 142CFLAGS+= -DHESIOD 143.endif 144.if ${MK_FP_LIBC} == "no" 145CFLAGS+= -DNO_FLOATING_POINT 146.endif 147.if ${MK_NS_CACHING} != "no" 148CFLAGS+= -DNS_CACHING 149.endif 150.if defined(_FREEFALL_CONFIG) 151CFLAGS+=-D_FREEFALL_CONFIG 152.endif 153 154STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/} 155 156VERSION_DEF=${LIBC_SRCTOP}/Versions.def 157SYMBOL_MAPS=${SYM_MAPS} 158 159# If there are no machine dependent sources, append all the 160# machine-independent sources: 161.if empty(MDSRCS) || ${MK_MACHDEP_OPTIMIZATIONS} == no 162SRCS+= ${MISRCS} 163.else 164# Append machine-dependent sources, then append machine-independent sources 165# for which there is no machine-dependent variant. 166SRCS+= ${MDSRCS} 167.for _src in ${MISRCS} 168.if ${MDSRCS:R:M${_src:R}} == "" 169SRCS+= ${_src} 170.endif 171.endfor 172.endif 173 174KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \ 175 lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \ 176 subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c 177KSRCS= bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \ 178 strcmp.c strcpy.c strlen.c strncpy.c strrchr.c 179 180libkern: libkern.gen libkern.${LIBC_ARCH} 181 182libkern.gen: ${KQSRCS} ${KSRCS} 183 ${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern 184 185libkern.${LIBC_ARCH}:: ${KMSRCS} 186.if defined(KMSRCS) && !empty(KMSRCS) 187 ${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH} 188.endif 189 190HAS_TESTS= 191SUBDIR.${MK_TESTS}+= tests 192 193.include <bsd.lib.mk> 194 195.if (${LIBC_ARCH} == amd64 || ${LIBC_ARCH} == i386) && \ 196 ${.TARGETS:Mall} == all && \ 197 defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == "" 198.error ${LIBC_ARCH} libc requires linker ifunc support 199.endif 200 201.if !defined(_SKIP_BUILD) 202# We need libutil.h, get it directly to avoid 203# recording a build dependency 204CFLAGS+= -I${SRCTOP}/lib/libutil 205# Same issue with libm 206MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR 207# unfortunately msun/src contains both private and public headers 208CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR} 209.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 210CFLAGS+= -I${SRCTOP}/lib/msun/x86 211.endif 212CFLAGS+= -I${SRCTOP}/lib/msun/src 213# and we do not want to record a dependency on msun 214.if ${.MAKE.LEVEL} > 0 215GENDIRDEPS_FILTER+= N${RELDIR:H}/msun 216.endif 217.endif 218 219# Disable warnings in contributed sources. 220CWARNFLAGS:= ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/} 221# Disable stack protection for SSP symbols. 222SSP_CFLAGS:= ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/} 223# Generate stack unwinding tables for cancellation points 224CANCELPOINTS_CFLAGS:= ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//} 225