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:= ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//} 194