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}/${MACHINE_ARCH})
19LIBC_ARCH=${MACHINE_ARCH}
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 ${MK_SSP} != "no"
35SHLIB_LDSCRIPT=libc.ldscript
36.else
37SHLIB_LDSCRIPT=libc_nossp.ldscript
38.endif
39SHLIB_LDSCRIPT_LINKS=libxnet.so
40WARNS?=	2
41CFLAGS+=-I${LIBC_SRCTOP}/include -I${SRCTOP}/include
42CFLAGS+=-I${LIBC_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#
57# Link with static libcompiler_rt.a.
58#
59LDFLAGS+= -nodefaultlibs
60LIBADD+=	compiler_rt
61
62.if ${MK_SSP} != "no"
63LIBADD+=	ssp_nonshared
64.endif
65
66# Extras that live in either libc.a or libc_nonshared.a
67LIBC_NONSHARED_SRCS=
68
69# Define (empty) variables so that make doesn't give substitution
70# errors if the included makefiles don't change these:
71MDSRCS=
72MISRCS=
73MDASM=
74MIASM=
75NOASM=
76
77.include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc"
78.include "${LIBC_SRCTOP}/db/Makefile.inc"
79.include "${LIBC_SRCTOP}/compat-43/Makefile.inc"
80.include "${LIBC_SRCTOP}/gdtoa/Makefile.inc"
81.include "${LIBC_SRCTOP}/gen/Makefile.inc"
82.include "${LIBC_SRCTOP}/gmon/Makefile.inc"
83.if ${MK_ICONV} != "no"
84.include "${LIBC_SRCTOP}/iconv/Makefile.inc"
85.endif
86.include "${LIBC_SRCTOP}/inet/Makefile.inc"
87.include "${LIBC_SRCTOP}/isc/Makefile.inc"
88.include "${LIBC_SRCTOP}/locale/Makefile.inc"
89.include "${LIBC_SRCTOP}/md/Makefile.inc"
90.include "${LIBC_SRCTOP}/nameser/Makefile.inc"
91.include "${LIBC_SRCTOP}/net/Makefile.inc"
92.include "${LIBC_SRCTOP}/nls/Makefile.inc"
93.include "${LIBC_SRCTOP}/posix1e/Makefile.inc"
94.if ${LIBC_ARCH} != "aarch64" && \
95    ${LIBC_ARCH} != "amd64" && \
96    ${LIBC_ARCH} != "powerpc64" && \
97    ${LIBC_ARCH} != "riscv" && \
98    ${LIBC_ARCH} != "sparc64" && \
99    ${MACHINE_ARCH:Mmipsn32*} == "" && \
100    ${MACHINE_ARCH:Mmips64*} == ""
101.include "${LIBC_SRCTOP}/quad/Makefile.inc"
102.endif
103.include "${LIBC_SRCTOP}/regex/Makefile.inc"
104.include "${LIBC_SRCTOP}/resolv/Makefile.inc"
105.include "${LIBC_SRCTOP}/stdio/Makefile.inc"
106.include "${LIBC_SRCTOP}/stdlib/Makefile.inc"
107.include "${LIBC_SRCTOP}/stdlib/jemalloc/Makefile.inc"
108.include "${LIBC_SRCTOP}/stdtime/Makefile.inc"
109.include "${LIBC_SRCTOP}/string/Makefile.inc"
110.include "${LIBC_SRCTOP}/sys/Makefile.inc"
111.include "${LIBC_SRCTOP}/secure/Makefile.inc"
112.include "${LIBC_SRCTOP}/rpc/Makefile.inc"
113.include "${LIBC_SRCTOP}/uuid/Makefile.inc"
114.include "${LIBC_SRCTOP}/xdr/Makefile.inc"
115.if (${LIBC_ARCH} == "arm" && \
116	(${MACHINE_ARCH:Marmv[67]*} == "" || (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))) || \
117    (${LIBC_ARCH} == "mips" && ${MACHINE_ARCH:Mmips*hf} == "") || \
118    (${LIBC_ARCH} == "riscv" && ${MACHINE_ARCH:Mriscv*sf} != "")
119.include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
120.endif
121.if ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "amd64"
122.include "${LIBC_SRCTOP}/x86/sys/Makefile.inc"
123.include "${LIBC_SRCTOP}/x86/gen/Makefile.inc"
124.endif
125.if ${MK_NIS} != "no"
126CFLAGS+= -DYP
127.include "${LIBC_SRCTOP}/yp/Makefile.inc"
128.endif
129.include "${LIBC_SRCTOP}/capability/Makefile.inc"
130.if ${MK_HESIOD} != "no"
131CFLAGS+= -DHESIOD
132.endif
133.if ${MK_FP_LIBC} == "no"
134CFLAGS+= -DNO_FLOATING_POINT
135.endif
136.if ${MK_NS_CACHING} != "no"
137CFLAGS+= -DNS_CACHING
138.endif
139.if defined(_FREEFALL_CONFIG)
140CFLAGS+=-D_FREEFALL_CONFIG
141.endif
142
143STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/}
144
145VERSION_DEF=${LIBC_SRCTOP}/Versions.def
146SYMBOL_MAPS=${SYM_MAPS}
147CFLAGS+= -DSYMBOL_VERSIONING
148
149# If there are no machine dependent sources, append all the
150# machine-independent sources:
151.if empty(MDSRCS)
152SRCS+=	${MISRCS}
153.else
154# Append machine-dependent sources, then append machine-independent sources
155# for which there is no machine-dependent variant.
156SRCS+=	${MDSRCS}
157.for _src in ${MISRCS}
158.if ${MDSRCS:R:M${_src:R}} == ""
159SRCS+=	${_src}
160.endif
161.endfor
162.endif
163
164KQSRCS=	adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
165	lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
166	subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
167KSRCS=	bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
168	strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
169
170libkern: libkern.gen libkern.${LIBC_ARCH}
171
172libkern.gen: ${KQSRCS} ${KSRCS}
173	${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
174
175libkern.${LIBC_ARCH}:: ${KMSRCS}
176.if defined(KMSRCS) && !empty(KMSRCS)
177	${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
178.endif
179
180HAS_TESTS=
181SUBDIR.${MK_TESTS}+= tests
182
183.include <bsd.lib.mk>
184
185.if (${LIBC_ARCH} == amd64 || ${LIBC_ARCH} == i386) && \
186    ${.TARGETS:Mall} == all && \
187    defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == ""
188.error ${LIBC_ARCH} libc requires linker ifunc support
189.endif
190
191.if !defined(_SKIP_BUILD)
192# We need libutil.h, get it directly to avoid
193# recording a build dependency
194CFLAGS+= -I${SRCTOP}/lib/libutil
195# Same issue with libm
196MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR
197# unfortunately msun/src contains both private and public headers
198CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR}
199.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
200CFLAGS+= -I${SRCTOP}/lib/msun/x86
201.endif
202CFLAGS+= -I${SRCTOP}/lib/msun/src
203# and we do not want to record a dependency on msun
204.if ${.MAKE.LEVEL} > 0
205GENDIRDEPS_FILTER+= N${RELDIR:H}/msun
206.endif
207.endif
208
209# Disable warnings in contributed sources.
210CWARNFLAGS:=	${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
211# Disable stack protection for SSP symbols.
212SSP_CFLAGS:=	${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
213# Generate stack unwinding tables for cancellation points
214CANCELPOINTS_CFLAGS:=	${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}
215