1# @(#)Makefile 8.2 (Berkeley) 2/3/94 2# $FreeBSD$ 3 4PACKAGE= clibs 5SHLIBDIR?= /lib 6 7.include <src.opts.mk> 8 9LIBC_SRCTOP?= ${.CURDIR} 10 11# Pick the current architecture directory for libc. In general, this is 12# named MACHINE_CPUARCH, but some ABIs are different enough to require 13# their own libc, so allow a directory named MACHINE_ARCH to override this. 14 15.if exists(${LIBC_SRCTOP}/${MACHINE_ARCH:S/powerpc64le/powerpc64/}) 16LIBC_ARCH=${MACHINE_ARCH:S/powerpc64le/powerpc64/} 17.else 18LIBC_ARCH=${MACHINE_CPUARCH} 19.endif 20 21# All library objects contain FreeBSD revision strings by default; they may be 22# excluded as a space-saving measure. To produce a library that does 23# not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAGS 24# below. Note: there are no IDs for syscall stubs whose sources are generated. 25# To include legacy CSRG SCCS ID strings, remove -DNO__SCCSID from CFLAGS. 26# To include RCS ID strings from other BSD projects, remove -DNO__RCSID from CFLAGS. 27CFLAGS+=-DNO__SCCSID -DNO__RCSID 28 29LIB=c 30SHLIB_MAJOR= 7 31.if ${MK_SSP} != "no" && \ 32 (${LIBC_ARCH} == "i386" || ${LIBC_ARCH:Mpowerpc*} != "") 33SHLIB_LDSCRIPT=libc.ldscript 34.else 35SHLIB_LDSCRIPT=libc_nossp.ldscript 36.endif 37SHLIB_LDSCRIPT_LINKS=libxnet.so 38WARNS?= 2 39CFLAGS+=-I${LIBC_SRCTOP}/include -I${SRCTOP}/include 40CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH} 41.if ${MK_NLS} != "no" 42CFLAGS+=-DNLS 43.endif 44CLEANFILES+=tags 45INSTALL_PIC_ARCHIVE= 46BUILD_NOSSP_PIC_ARCHIVE= 47PRECIOUSLIB= 48 49.ifndef NO_THREAD_STACK_UNWIND 50CANCELPOINTS_CFLAGS=-fexceptions 51CFLAGS+=${CANCELPOINTS_CFLAGS} 52.endif 53 54# Use a more efficient TLS model for libc since we can reasonably assume that 55# it will be loaded during program startup. 56.if ${LIBC_ARCH} == "aarch64" || ${LIBC_ARCH} == "amd64" || \ 57 ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "riscv" || \ 58 ${LIBC_ARCH:Mpowerpc*} != "" 59CFLAGS+= -ftls-model=initial-exec 60.endif 61 62# 63# Link with static libcompiler_rt.a. 64# 65LDFLAGS+= -nodefaultlibs 66LIBADD+= compiler_rt 67 68.if ${MK_SSP} != "no" && \ 69 (${LIBC_ARCH} == "i386" || ${LIBC_ARCH:Mpowerpc*} != "") 70LIBADD+= ssp_nonshared 71.endif 72 73# Extras that live in either libc.a or libc_nonshared.a 74LIBC_NONSHARED_SRCS= 75 76RTLD_ELF_DIR=${SRCTOP}/libexec/rtld-elf 77.if exists(${RTLD_ELF_DIR}/${MACHINE_ARCH:S/powerpc64le/powerpc64/}) 78RTLD_ARCH= ${MACHINE_ARCH:S/powerpc64le/powerpc64/} 79.else 80RTLD_ARCH= ${MACHINE_CPUARCH} 81.endif 82RTLD_HDRS= -I${RTLD_ELF_DIR}/${RTLD_ARCH} -I${RTLD_ELF_DIR} 83 84# Define (empty) variables so that make doesn't give substitution 85# errors if the included makefiles don't change these: 86MDSRCS= 87MISRCS= 88MDASM= 89MIASM= 90NOASM= 91 92.include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc" 93.include "${LIBC_SRCTOP}/csu/Makefile.inc" 94.include "${LIBC_SRCTOP}/db/Makefile.inc" 95.include "${LIBC_SRCTOP}/compat-43/Makefile.inc" 96.include "${LIBC_SRCTOP}/gdtoa/Makefile.inc" 97.include "${LIBC_SRCTOP}/gen/Makefile.inc" 98.include "${LIBC_SRCTOP}/gmon/Makefile.inc" 99.if ${MK_ICONV} != "no" 100.include "${LIBC_SRCTOP}/iconv/Makefile.inc" 101.endif 102.include "${LIBC_SRCTOP}/inet/Makefile.inc" 103.include "${LIBC_SRCTOP}/isc/Makefile.inc" 104.include "${LIBC_SRCTOP}/locale/Makefile.inc" 105.include "${LIBC_SRCTOP}/md/Makefile.inc" 106.include "${LIBC_SRCTOP}/nameser/Makefile.inc" 107.include "${LIBC_SRCTOP}/net/Makefile.inc" 108.include "${LIBC_SRCTOP}/nls/Makefile.inc" 109.include "${LIBC_SRCTOP}/posix1e/Makefile.inc" 110.if ${MACHINE_ABI:Mlong32} 111.include "${LIBC_SRCTOP}/quad/Makefile.inc" 112.endif 113.include "${LIBC_SRCTOP}/regex/Makefile.inc" 114.include "${LIBC_SRCTOP}/resolv/Makefile.inc" 115.include "${LIBC_SRCTOP}/stdio/Makefile.inc" 116.include "${LIBC_SRCTOP}/stdlib/Makefile.inc" 117.include "${LIBC_SRCTOP}/stdlib/jemalloc/Makefile.inc" 118.include "${LIBC_SRCTOP}/stdtime/Makefile.inc" 119.include "${LIBC_SRCTOP}/string/Makefile.inc" 120.include "${LIBC_SRCTOP}/sys/Makefile.inc" 121.include "${LIBC_SRCTOP}/secure/Makefile.inc" 122.include "${LIBC_SRCTOP}/rpc/Makefile.inc" 123.include "${LIBC_SRCTOP}/uuid/Makefile.inc" 124.include "${LIBC_SRCTOP}/xdr/Makefile.inc" 125.if (${LIBC_ARCH} == "arm" && (defined(CPUTYPE) && ${CPUTYPE:M*soft*})) 126.include "${LIBC_SRCTOP}/softfloat/Makefile.inc" 127.endif 128.if ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "amd64" 129.include "${LIBC_SRCTOP}/x86/sys/Makefile.inc" 130.include "${LIBC_SRCTOP}/x86/gen/Makefile.inc" 131.endif 132.if ${MK_NIS} != "no" 133CFLAGS+= -DYP 134.include "${LIBC_SRCTOP}/yp/Makefile.inc" 135.endif 136.include "${LIBC_SRCTOP}/capability/Makefile.inc" 137.if ${MK_HESIOD} != "no" 138CFLAGS+= -DHESIOD 139.endif 140.if ${MK_FP_LIBC} == "no" 141CFLAGS+= -DNO_FLOATING_POINT 142.endif 143.if ${MK_NS_CACHING} != "no" 144CFLAGS+= -DNS_CACHING 145.endif 146.if defined(_FREEFALL_CONFIG) 147CFLAGS+=-D_FREEFALL_CONFIG 148.endif 149 150STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/} 151 152VERSION_DEF=${LIBC_SRCTOP}/Versions.def 153SYMBOL_MAPS=${SYM_MAPS} 154CFLAGS+= -DSYMBOL_VERSIONING 155 156# If there are no machine dependent sources, append all the 157# machine-independent sources: 158.if empty(MDSRCS) || ${MK_MACHDEP_OPTIMIZATIONS} == no 159SRCS+= ${MISRCS} 160.else 161# Append machine-dependent sources, then append machine-independent sources 162# for which there is no machine-dependent variant. 163SRCS+= ${MDSRCS} 164.for _src in ${MISRCS} 165.if ${MDSRCS:R:M${_src:R}} == "" 166SRCS+= ${_src} 167.endif 168.endfor 169.endif 170 171KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \ 172 lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \ 173 subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c 174KSRCS= bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \ 175 strcmp.c strcpy.c strlen.c strncpy.c strrchr.c 176 177libkern: libkern.gen libkern.${LIBC_ARCH} 178 179libkern.gen: ${KQSRCS} ${KSRCS} 180 ${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern 181 182libkern.${LIBC_ARCH}:: ${KMSRCS} 183.if defined(KMSRCS) && !empty(KMSRCS) 184 ${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH} 185.endif 186 187HAS_TESTS= 188SUBDIR.${MK_TESTS}+= tests 189 190.include <bsd.lib.mk> 191 192.if (${LIBC_ARCH} == amd64 || ${LIBC_ARCH} == i386) && \ 193 ${.TARGETS:Mall} == all && \ 194 defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == "" 195.error ${LIBC_ARCH} libc requires linker ifunc support 196.endif 197 198.if !defined(_SKIP_BUILD) 199# We need libutil.h, get it directly to avoid 200# recording a build dependency 201CFLAGS+= -I${SRCTOP}/lib/libutil 202# Same issue with libm 203MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR 204# unfortunately msun/src contains both private and public headers 205CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR} 206.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 207CFLAGS+= -I${SRCTOP}/lib/msun/x86 208.endif 209CFLAGS+= -I${SRCTOP}/lib/msun/src 210# and we do not want to record a dependency on msun 211.if ${.MAKE.LEVEL} > 0 212GENDIRDEPS_FILTER+= N${RELDIR:H}/msun 213.endif 214.endif 215 216# Disable warnings in contributed sources. 217CWARNFLAGS:= ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/} 218# Disable stack protection for SSP symbols. 219SSP_CFLAGS:= ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/} 220# Generate stack unwinding tables for cancellation points 221CANCELPOINTS_CFLAGS:= ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//} 222