1 # @(#)Makefile 8.2 (Berkeley) 2/3/94
8 LIBC_SRCTOP?= ${.CURDIR}
10 # Pick the current architecture directory for libc. In general, this is
11 # named MACHINE_CPUARCH, but some ABIs are different enough to require
12 # their own libc, so allow a directory named MACHINE_ARCH to override this.
14 .if exists(${LIBC_SRCTOP}/${MACHINE_ARCH})
15 LIBC_ARCH=${MACHINE_ARCH}
17 LIBC_ARCH=${MACHINE_CPUARCH}
20 # All library objects contain FreeBSD revision strings by default; they may be
21 # excluded as a space-saving measure. To produce a library that does
22 # not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAGS
23 # below. Note: there are no IDs for syscall stubs whose sources are generated.
24 # To include legacy CSRG sccsid strings, add -DLIBC_SCCS and -DSYSLIBC_SCCS
25 # to CFLAGS below. -DSYSLIBC_SCCS affects just the system call stubs.
28 SHLIB_LDSCRIPT=libc.ldscript
30 CFLAGS+=-I${LIBC_SRCTOP}/include -I${LIBC_SRCTOP}/../../include
31 CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH}
39 .ifndef NO_THREAD_STACK_UNWIND
40 CANCELPOINTS_CFLAGS=-fexceptions
41 CFLAGS+=${CANCELPOINTS_CFLAGS}
45 # Link with static libcompiler_rt.a.
47 LDFLAGS+= -nodefaultlibs
51 LIBADD+= ssp_nonshared
54 # Extras that live in either libc.a or libc_nonshared.a
57 # Define (empty) variables so that make doesn't give substitution
58 # errors if the included makefiles don't change these:
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"
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"
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 "${LIBC_SRCTOP}/secure/Makefile.inc"
99 .include "${LIBC_SRCTOP}/rpc/Makefile.inc"
100 .include "${LIBC_SRCTOP}/uuid/Makefile.inc"
101 .include "${LIBC_SRCTOP}/xdr/Makefile.inc"
102 .if (${LIBC_ARCH} == "arm" && ${MACHINE_ARCH} != "armv6hf") ||\
103 ${LIBC_ARCH} == "mips"
104 .include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
106 .if ${MK_NIS} != "no"
108 .include "${LIBC_SRCTOP}/yp/Makefile.inc"
110 .include "${LIBC_SRCTOP}/capability/Makefile.inc"
111 .if ${MK_HESIOD} != "no"
114 .if ${MK_FP_LIBC} == "no"
115 CFLAGS+= -DNO_FLOATING_POINT
117 .if ${MK_NS_CACHING} != "no"
118 CFLAGS+= -DNS_CACHING
120 .if defined(_FREEFALL_CONFIG)
121 CFLAGS+=-D_FREEFALL_CONFIG
124 STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/}
126 VERSION_DEF=${LIBC_SRCTOP}/Versions.def
127 SYMBOL_MAPS=${SYM_MAPS}
128 CFLAGS+= -DSYMBOL_VERSIONING
130 # If there are no machine dependent sources, append all the
131 # machine-independent sources:
135 # Append machine-dependent sources, then append machine-independent sources
136 # for which there is no machine-dependent variant.
138 .for _src in ${MISRCS}
139 .if ${MDSRCS:R:M${_src:R}} == ""
145 KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
146 lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
147 subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
148 KSRCS= bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
149 strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
151 libkern: libkern.gen libkern.${LIBC_ARCH}
153 libkern.gen: ${KQSRCS} ${KSRCS}
154 ${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
156 libkern.${LIBC_ARCH}:: ${KMSRCS}
157 .if defined(KMSRCS) && !empty(KMSRCS)
158 ${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
161 .if ${MK_TESTS} != "no"
165 .include <bsd.lib.mk>
167 .if !defined(_SKIP_BUILD)
168 # We need libutil.h, get it directly to avoid
169 # recording a build dependency
170 CFLAGS+= -I${.CURDIR:H}/libutil
171 # Same issue with libm
172 MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${.CURDIR:H}/msun -V ARCH_SUBDIR
173 # unfortunately msun/src contains both private and public headers
174 CFLAGS+= -I${.CURDIR:H}/msun/${MSUN_ARCH_SUBDIR}
175 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
176 CFLAGS+= -I${.CURDIR:H}/msun/x86
178 CFLAGS+= -I${.CURDIR:H}/msun/src
179 # and we do not want to record a dependency on msun
180 .if ${.MAKE.LEVEL} > 0
181 GENDIRDEPS_FILTER+= N${RELDIR:H}/msun
185 # Disable warnings in contributed sources.
186 CWARNFLAGS:= ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
187 # XXX For now, we don't allow libc to be compiled with
188 # -fstack-protector-all because it breaks rtld. We may want to make a librtld
189 # in the future to circumvent this.
190 SSP_CFLAGS:= ${SSP_CFLAGS:S/^-fstack-protector-all$/-fstack-protector/}
191 # Disable stack protection for SSP symbols.
192 SSP_CFLAGS:= ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
193 # Generate stack unwinding tables for cancellation points
194 CANCELPOINTS_CFLAGS:= ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}