xref: /freebsd/lib/libc/Makefile (revision 2ed3236082a4473c1da8f72c1ebc071a7b54321f)
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" || ${MACHINE_ARCH:Mpower*} != "")
36SHLIB_LDSCRIPT=libc.ldscript
37.else
38SHLIB_LDSCRIPT=libc_nossp.ldscript
39.endif
40SHLIB_LDSCRIPT_LINKS=libxnet.so
41WARNS?=	2
42CFLAGS+=-I${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#
58# Link with static libcompiler_rt.a.
59#
60LDFLAGS+= -nodefaultlibs
61LIBADD+=	compiler_rt
62
63.if ${MK_SSP} != "no" && \
64    (${LIBC_ARCH} == "i386" || ${MACHINE_ARCH:Mpower*} != "")
65LIBADD+=	ssp_nonshared
66.endif
67
68# Extras that live in either libc.a or libc_nonshared.a
69LIBC_NONSHARED_SRCS=
70
71# Define (empty) variables so that make doesn't give substitution
72# errors if the included makefiles don't change these:
73MDSRCS=
74MISRCS=
75MDASM=
76MIASM=
77NOASM=
78
79.include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc"
80.include "${LIBC_SRCTOP}/db/Makefile.inc"
81.include "${LIBC_SRCTOP}/compat-43/Makefile.inc"
82.include "${LIBC_SRCTOP}/gdtoa/Makefile.inc"
83.include "${LIBC_SRCTOP}/gen/Makefile.inc"
84.include "${LIBC_SRCTOP}/gmon/Makefile.inc"
85.if ${MK_ICONV} != "no"
86.include "${LIBC_SRCTOP}/iconv/Makefile.inc"
87.endif
88.include "${LIBC_SRCTOP}/inet/Makefile.inc"
89.include "${LIBC_SRCTOP}/isc/Makefile.inc"
90.include "${LIBC_SRCTOP}/locale/Makefile.inc"
91.include "${LIBC_SRCTOP}/md/Makefile.inc"
92.include "${LIBC_SRCTOP}/nameser/Makefile.inc"
93.include "${LIBC_SRCTOP}/net/Makefile.inc"
94.include "${LIBC_SRCTOP}/nls/Makefile.inc"
95.include "${LIBC_SRCTOP}/posix1e/Makefile.inc"
96.if ${LIBC_ARCH} != "aarch64" && \
97    ${LIBC_ARCH} != "amd64" && \
98    ${LIBC_ARCH} != "powerpc64" && \
99    ${LIBC_ARCH} != "riscv" && \
100    ${MACHINE_ARCH:Mmipsn32*} == "" && \
101    ${MACHINE_ARCH:Mmips64*} == ""
102.include "${LIBC_SRCTOP}/quad/Makefile.inc"
103.endif
104.include "${LIBC_SRCTOP}/regex/Makefile.inc"
105.include "${LIBC_SRCTOP}/resolv/Makefile.inc"
106.include "${LIBC_SRCTOP}/stdio/Makefile.inc"
107.include "${LIBC_SRCTOP}/stdlib/Makefile.inc"
108.include "${LIBC_SRCTOP}/stdlib/jemalloc/Makefile.inc"
109.include "${LIBC_SRCTOP}/stdtime/Makefile.inc"
110.include "${LIBC_SRCTOP}/string/Makefile.inc"
111.include "${LIBC_SRCTOP}/sys/Makefile.inc"
112.include "${LIBC_SRCTOP}/secure/Makefile.inc"
113.include "${LIBC_SRCTOP}/rpc/Makefile.inc"
114.include "${LIBC_SRCTOP}/uuid/Makefile.inc"
115.include "${LIBC_SRCTOP}/xdr/Makefile.inc"
116.if (${LIBC_ARCH} == "arm" && \
117	(${MACHINE_ARCH:Marmv[67]*} == "" || (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))) || \
118    (${LIBC_ARCH} == "mips" && ${MACHINE_ARCH:Mmips*hf} == "") || \
119    (${LIBC_ARCH} == "riscv" && ${MACHINE_ARCH:Mriscv*sf} != "")
120.include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
121.endif
122.if ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "amd64"
123.include "${LIBC_SRCTOP}/x86/sys/Makefile.inc"
124.include "${LIBC_SRCTOP}/x86/gen/Makefile.inc"
125.endif
126.if ${MK_NIS} != "no"
127CFLAGS+= -DYP
128.include "${LIBC_SRCTOP}/yp/Makefile.inc"
129.endif
130.include "${LIBC_SRCTOP}/capability/Makefile.inc"
131.if ${MK_HESIOD} != "no"
132CFLAGS+= -DHESIOD
133.endif
134.if ${MK_FP_LIBC} == "no"
135CFLAGS+= -DNO_FLOATING_POINT
136.endif
137.if ${MK_NS_CACHING} != "no"
138CFLAGS+= -DNS_CACHING
139.endif
140.if defined(_FREEFALL_CONFIG)
141CFLAGS+=-D_FREEFALL_CONFIG
142.endif
143
144STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/}
145
146VERSION_DEF=${LIBC_SRCTOP}/Versions.def
147SYMBOL_MAPS=${SYM_MAPS}
148CFLAGS+= -DSYMBOL_VERSIONING
149
150# If there are no machine dependent sources, append all the
151# machine-independent sources:
152.if empty(MDSRCS)
153SRCS+=	${MISRCS}
154.else
155# Append machine-dependent sources, then append machine-independent sources
156# for which there is no machine-dependent variant.
157SRCS+=	${MDSRCS}
158.for _src in ${MISRCS}
159.if ${MDSRCS:R:M${_src:R}} == ""
160SRCS+=	${_src}
161.endif
162.endfor
163.endif
164
165KQSRCS=	adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
166	lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
167	subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
168KSRCS=	bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
169	strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
170
171libkern: libkern.gen libkern.${LIBC_ARCH}
172
173libkern.gen: ${KQSRCS} ${KSRCS}
174	${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
175
176libkern.${LIBC_ARCH}:: ${KMSRCS}
177.if defined(KMSRCS) && !empty(KMSRCS)
178	${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
179.endif
180
181HAS_TESTS=
182SUBDIR.${MK_TESTS}+= tests
183
184.include <bsd.lib.mk>
185
186.if (${LIBC_ARCH} == amd64 || ${LIBC_ARCH} == i386) && \
187    ${.TARGETS:Mall} == all && \
188    defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == ""
189.error ${LIBC_ARCH} libc requires linker ifunc support
190.endif
191
192.if !defined(_SKIP_BUILD)
193# We need libutil.h, get it directly to avoid
194# recording a build dependency
195CFLAGS+= -I${SRCTOP}/lib/libutil
196# Same issue with libm
197MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR
198# unfortunately msun/src contains both private and public headers
199CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR}
200.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
201CFLAGS+= -I${SRCTOP}/lib/msun/x86
202.endif
203CFLAGS+= -I${SRCTOP}/lib/msun/src
204# and we do not want to record a dependency on msun
205.if ${.MAKE.LEVEL} > 0
206GENDIRDEPS_FILTER+= N${RELDIR:H}/msun
207.endif
208.endif
209
210# Disable warnings in contributed sources.
211CWARNFLAGS:=	${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
212# Disable stack protection for SSP symbols.
213SSP_CFLAGS:=	${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
214# Generate stack unwinding tables for cancellation points
215CANCELPOINTS_CFLAGS:=	${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}
216