1# @(#)Makefile 8.2 (Berkeley) 2/3/94 2# $FreeBSD$ 3 4PACKAGE= clibs 5SHLIBDIR?= /lib 6 7.include <src.opts.mk> 8 9# Force building of libc_pic.a 10MK_TOOLCHAIN= yes 11 12LIBC_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}/${MACHINE_ARCH:S/powerpc64le/powerpc64/}) 19LIBC_ARCH=${MACHINE_ARCH:S/powerpc64le/powerpc64/} 20.else 21LIBC_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 SCCS ID strings, remove -DNO__SCCSID from CFLAGS. 29# To include RCS ID strings from other BSD projects, remove -DNO__RCSID from CFLAGS. 30CFLAGS+=-DNO__SCCSID -DNO__RCSID 31 32LIB=c 33SHLIB_MAJOR= 7 34.if ${MK_SSP} != "no" && \ 35 (${LIBC_ARCH} == "i386" || ${LIBC_ARCH:Mpowerpc*} != "") 36SHLIB_LDSCRIPT=libc.ldscript 37.else 38SHLIB_LDSCRIPT=libc_nossp.ldscript 39.endif 40SHLIB_LDSCRIPT_LINKS=libxnet.so 41WARNS?= 2 42CFLAGS+=-I${LIBC_SRCTOP}/include -I${SRCTOP}/include 43CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH} 44.if ${MK_NLS} != "no" 45CFLAGS+=-DNLS 46.endif 47CLEANFILES+=tags 48INSTALL_PIC_ARCHIVE= 49BUILD_NOSSP_PIC_ARCHIVE= 50PRECIOUSLIB= 51 52.ifndef NO_THREAD_STACK_UNWIND 53CANCELPOINTS_CFLAGS=-fexceptions 54CFLAGS+=${CANCELPOINTS_CFLAGS} 55.endif 56 57# Use a more efficient TLS model for libc since we can reasonably assume that 58# it will be loaded during program startup. 59.if ${LIBC_ARCH} == "aarch64" || ${LIBC_ARCH} == "amd64" || \ 60 ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "riscv" || \ 61 ${LIBC_ARCH:Mpowerpc*} != "" 62CFLAGS+= -ftls-model=initial-exec 63.endif 64 65# 66# Link with static libcompiler_rt.a. 67# 68LDFLAGS+= -nodefaultlibs 69LIBADD+= compiler_rt 70 71.if ${MK_SSP} != "no" && \ 72 (${LIBC_ARCH} == "i386" || ${LIBC_ARCH:Mpowerpc*} != "") 73LIBADD+= ssp_nonshared 74.endif 75 76# Extras that live in either libc.a or libc_nonshared.a 77LIBC_NONSHARED_SRCS= 78 79RTLD_ELF_DIR=${SRCTOP}/libexec/rtld-elf 80.if exists(${RTLD_ELF_DIR}/${MACHINE_ARCH:S/powerpc64le/powerpc64/}) 81RTLD_ARCH= ${MACHINE_ARCH:S/powerpc64le/powerpc64/} 82.else 83RTLD_ARCH= ${MACHINE_CPUARCH} 84.endif 85RTLD_HDRS= -I${RTLD_ELF_DIR}/${RTLD_ARCH} -I${RTLD_ELF_DIR} 86 87# Define (empty) variables so that make doesn't give substitution 88# errors if the included makefiles don't change these: 89MDSRCS= 90MISRCS= 91MDASM= 92MIASM= 93NOASM= 94 95.include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc" 96.include "${LIBC_SRCTOP}/db/Makefile.inc" 97.include "${LIBC_SRCTOP}/compat-43/Makefile.inc" 98.include "${LIBC_SRCTOP}/gdtoa/Makefile.inc" 99.include "${LIBC_SRCTOP}/gen/Makefile.inc" 100.include "${LIBC_SRCTOP}/gmon/Makefile.inc" 101.if ${MK_ICONV} != "no" 102.include "${LIBC_SRCTOP}/iconv/Makefile.inc" 103.endif 104.include "${LIBC_SRCTOP}/inet/Makefile.inc" 105.include "${LIBC_SRCTOP}/isc/Makefile.inc" 106.include "${LIBC_SRCTOP}/locale/Makefile.inc" 107.include "${LIBC_SRCTOP}/md/Makefile.inc" 108.include "${LIBC_SRCTOP}/nameser/Makefile.inc" 109.include "${LIBC_SRCTOP}/net/Makefile.inc" 110.include "${LIBC_SRCTOP}/nls/Makefile.inc" 111.include "${LIBC_SRCTOP}/posix1e/Makefile.inc" 112.if ${MACHINE_ABI:Mlong32} 113.include "${LIBC_SRCTOP}/quad/Makefile.inc" 114.endif 115.include "${LIBC_SRCTOP}/regex/Makefile.inc" 116.include "${LIBC_SRCTOP}/resolv/Makefile.inc" 117.include "${LIBC_SRCTOP}/stdio/Makefile.inc" 118.include "${LIBC_SRCTOP}/stdlib/Makefile.inc" 119.include "${LIBC_SRCTOP}/stdlib/jemalloc/Makefile.inc" 120.include "${LIBC_SRCTOP}/stdtime/Makefile.inc" 121.include "${LIBC_SRCTOP}/string/Makefile.inc" 122.include "${LIBC_SRCTOP}/sys/Makefile.inc" 123.include "${LIBC_SRCTOP}/secure/Makefile.inc" 124.include "${LIBC_SRCTOP}/rpc/Makefile.inc" 125.include "${LIBC_SRCTOP}/uuid/Makefile.inc" 126.include "${LIBC_SRCTOP}/xdr/Makefile.inc" 127.if (${LIBC_ARCH} == "arm" && \ 128 (${MACHINE_ARCH:Marmv[67]*} == "" || (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))) || \ 129 (${LIBC_ARCH} == "riscv" && ${MACHINE_ARCH:Mriscv*sf} != "") 130.include "${LIBC_SRCTOP}/softfloat/Makefile.inc" 131.endif 132.if ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "amd64" 133.include "${LIBC_SRCTOP}/x86/sys/Makefile.inc" 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} 158CFLAGS+= -DSYMBOL_VERSIONING 159 160# If there are no machine dependent sources, append all the 161# machine-independent sources: 162.if empty(MDSRCS) || ${MK_MACHDEP_OPTIMIZATIONS} == no 163SRCS+= ${MISRCS} 164.else 165# Append machine-dependent sources, then append machine-independent sources 166# for which there is no machine-dependent variant. 167SRCS+= ${MDSRCS} 168.for _src in ${MISRCS} 169.if ${MDSRCS:R:M${_src:R}} == "" 170SRCS+= ${_src} 171.endif 172.endfor 173.endif 174 175KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \ 176 lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \ 177 subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c 178KSRCS= bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \ 179 strcmp.c strcpy.c strlen.c strncpy.c strrchr.c 180 181libkern: libkern.gen libkern.${LIBC_ARCH} 182 183libkern.gen: ${KQSRCS} ${KSRCS} 184 ${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern 185 186libkern.${LIBC_ARCH}:: ${KMSRCS} 187.if defined(KMSRCS) && !empty(KMSRCS) 188 ${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH} 189.endif 190 191HAS_TESTS= 192SUBDIR.${MK_TESTS}+= tests 193 194.include <bsd.lib.mk> 195 196.if (${LIBC_ARCH} == amd64 || ${LIBC_ARCH} == i386) && \ 197 ${.TARGETS:Mall} == all && \ 198 defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == "" 199.error ${LIBC_ARCH} libc requires linker ifunc support 200.endif 201 202.if !defined(_SKIP_BUILD) 203# We need libutil.h, get it directly to avoid 204# recording a build dependency 205CFLAGS+= -I${SRCTOP}/lib/libutil 206# Same issue with libm 207MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR 208# unfortunately msun/src contains both private and public headers 209CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR} 210.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 211CFLAGS+= -I${SRCTOP}/lib/msun/x86 212.endif 213CFLAGS+= -I${SRCTOP}/lib/msun/src 214# and we do not want to record a dependency on msun 215.if ${.MAKE.LEVEL} > 0 216GENDIRDEPS_FILTER+= N${RELDIR:H}/msun 217.endif 218.endif 219 220# Disable warnings in contributed sources. 221CWARNFLAGS:= ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/} 222# Disable stack protection for SSP symbols. 223SSP_CFLAGS:= ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/} 224# Generate stack unwinding tables for cancellation points 225CANCELPOINTS_CFLAGS:= ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//} 226