freebsd-dev/lib/libc/Makefile
Warner Losh 0b972ac92e Support armv7 builds for userland
Make armv7 as a new MACHINE_ARCH.

Copy all the places we do armv6 and add armv7 as basically an
alias. clang appears to generate code for armv7 by default. armv7 hard
float isn't supported by the the in-tree gcc, so it hasn't been
updated to have a new default.

Support armv7 as a new valid MACHINE_ARCH (and by extension
TARGET_ARCH).

Add armv7 to the universe build.

Differential Revision: https://reviews.freebsd.org/D12010
2017-10-05 23:01:33 +00:00

209 lines
6.4 KiB
Makefile

# @(#)Makefile 8.2 (Berkeley) 2/3/94
# $FreeBSD$
PACKAGE= clibs
SHLIBDIR?= /lib
.include <src.opts.mk>
# Force building of libc_pic.a
MK_TOOLCHAIN= yes
LIBC_SRCTOP?= ${.CURDIR}
# Pick the current architecture directory for libc. In general, this is
# named MACHINE_CPUARCH, but some ABIs are different enough to require
# their own libc, so allow a directory named MACHINE_ARCH to override this.
.if exists(${LIBC_SRCTOP}/${MACHINE_ARCH})
LIBC_ARCH=${MACHINE_ARCH}
.else
LIBC_ARCH=${MACHINE_CPUARCH}
.endif
# All library objects contain FreeBSD revision strings by default; they may be
# excluded as a space-saving measure. To produce a library that does
# not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAGS
# below. Note: there are no IDs for syscall stubs whose sources are generated.
# To include legacy CSRG sccsid strings, add -DLIBC_SCCS and -DSYSLIBC_SCCS
# to CFLAGS below. -DSYSLIBC_SCCS affects just the system call stubs.
LIB=c
SHLIB_MAJOR= 7
.if ${MK_SSP} != "no"
SHLIB_LDSCRIPT=libc.ldscript
.else
SHLIB_LDSCRIPT=libc_nossp.ldscript
.endif
SHLIB_LDSCRIPT_LINKS=libxnet.so
WARNS?= 2
CFLAGS+=-I${LIBC_SRCTOP}/include -I${SRCTOP}/include
CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH}
.if ${MK_NLS} != "no"
CFLAGS+=-DNLS
.endif
CLEANFILES+=tags
INSTALL_PIC_ARCHIVE=
PRECIOUSLIB=
.ifndef NO_THREAD_STACK_UNWIND
CANCELPOINTS_CFLAGS=-fexceptions
CFLAGS+=${CANCELPOINTS_CFLAGS}
.endif
#
# Link with static libcompiler_rt.a.
#
LDFLAGS+= -nodefaultlibs
LIBADD+= compiler_rt
.if ${MK_SSP} != "no"
LIBADD+= ssp_nonshared
.endif
# Extras that live in either libc.a or libc_nonshared.a
LIBC_NONSHARED_SRCS=
# Define (empty) variables so that make doesn't give substitution
# errors if the included makefiles don't change these:
MDSRCS=
MISRCS=
MDASM=
MIASM=
NOASM=
.include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc"
.include "${LIBC_SRCTOP}/db/Makefile.inc"
.include "${LIBC_SRCTOP}/compat-43/Makefile.inc"
.include "${LIBC_SRCTOP}/gdtoa/Makefile.inc"
.include "${LIBC_SRCTOP}/gen/Makefile.inc"
.include "${LIBC_SRCTOP}/gmon/Makefile.inc"
.if ${MK_ICONV} != "no"
.include "${LIBC_SRCTOP}/iconv/Makefile.inc"
.endif
.include "${LIBC_SRCTOP}/inet/Makefile.inc"
.include "${LIBC_SRCTOP}/isc/Makefile.inc"
.include "${LIBC_SRCTOP}/locale/Makefile.inc"
.include "${LIBC_SRCTOP}/md/Makefile.inc"
.include "${LIBC_SRCTOP}/nameser/Makefile.inc"
.include "${LIBC_SRCTOP}/net/Makefile.inc"
.include "${LIBC_SRCTOP}/nls/Makefile.inc"
.include "${LIBC_SRCTOP}/posix1e/Makefile.inc"
.if ${LIBC_ARCH} != "aarch64" && \
${LIBC_ARCH} != "amd64" && \
${LIBC_ARCH} != "powerpc64" && \
${LIBC_ARCH} != "riscv" && \
${LIBC_ARCH} != "sparc64" && \
${MACHINE_ARCH:Mmipsn32*} == "" && \
${MACHINE_ARCH:Mmips64*} == ""
.include "${LIBC_SRCTOP}/quad/Makefile.inc"
.endif
.include "${LIBC_SRCTOP}/regex/Makefile.inc"
.include "${LIBC_SRCTOP}/resolv/Makefile.inc"
.include "${LIBC_SRCTOP}/stdio/Makefile.inc"
.include "${LIBC_SRCTOP}/stdlib/Makefile.inc"
.include "${LIBC_SRCTOP}/stdlib/jemalloc/Makefile.inc"
.include "${LIBC_SRCTOP}/stdtime/Makefile.inc"
.include "${LIBC_SRCTOP}/string/Makefile.inc"
.include "${LIBC_SRCTOP}/sys/Makefile.inc"
.include "${LIBC_SRCTOP}/secure/Makefile.inc"
.include "${LIBC_SRCTOP}/rpc/Makefile.inc"
.include "${LIBC_SRCTOP}/uuid/Makefile.inc"
.include "${LIBC_SRCTOP}/xdr/Makefile.inc"
.if (${LIBC_ARCH} == "arm" && \
(${MACHINE_ARCH:Marmv[67]*} == "" || (defined(CPUTYPE) && ${CPUTYPE:M*soft*}))) || \
(${LIBC_ARCH} == "mips" && ${MACHINE_ARCH:Mmips*hf} == "") || \
(${LIBC_ARCH} == "riscv" && ${MACHINE_ARCH:Mriscv*sf} != "")
.include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
.endif
.if ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "amd64"
.include "${LIBC_SRCTOP}/x86/sys/Makefile.inc"
.endif
.if ${MK_NIS} != "no"
CFLAGS+= -DYP
.include "${LIBC_SRCTOP}/yp/Makefile.inc"
.endif
.include "${LIBC_SRCTOP}/capability/Makefile.inc"
.if ${MK_HESIOD} != "no"
CFLAGS+= -DHESIOD
.endif
.if ${MK_FP_LIBC} == "no"
CFLAGS+= -DNO_FLOATING_POINT
.endif
.if ${MK_NS_CACHING} != "no"
CFLAGS+= -DNS_CACHING
.endif
.if defined(_FREEFALL_CONFIG)
CFLAGS+=-D_FREEFALL_CONFIG
.endif
STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/}
VERSION_DEF=${LIBC_SRCTOP}/Versions.def
SYMBOL_MAPS=${SYM_MAPS}
CFLAGS+= -DSYMBOL_VERSIONING
# If there are no machine dependent sources, append all the
# machine-independent sources:
.if empty(MDSRCS)
SRCS+= ${MISRCS}
.else
# Append machine-dependent sources, then append machine-independent sources
# for which there is no machine-dependent variant.
SRCS+= ${MDSRCS}
.for _src in ${MISRCS}
.if ${MDSRCS:R:M${_src:R}} == ""
SRCS+= ${_src}
.endif
.endfor
.endif
KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
KSRCS= bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
libkern: libkern.gen libkern.${LIBC_ARCH}
libkern.gen: ${KQSRCS} ${KSRCS}
${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
libkern.${LIBC_ARCH}:: ${KMSRCS}
.if defined(KMSRCS) && !empty(KMSRCS)
${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
.endif
HAS_TESTS=
SUBDIR.${MK_TESTS}+= tests
.include <bsd.lib.mk>
.if !defined(_SKIP_BUILD)
# We need libutil.h, get it directly to avoid
# recording a build dependency
CFLAGS+= -I${SRCTOP}/lib/libutil
# Same issue with libm
MSUN_ARCH_SUBDIR != ${MAKE} -B -C ${SRCTOP}/lib/msun -V ARCH_SUBDIR
# unfortunately msun/src contains both private and public headers
CFLAGS+= -I${SRCTOP}/lib/msun/${MSUN_ARCH_SUBDIR}
.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
CFLAGS+= -I${SRCTOP}/lib/msun/x86
.endif
CFLAGS+= -I${SRCTOP}/lib/msun/src
# and we do not want to record a dependency on msun
.if ${.MAKE.LEVEL} > 0
GENDIRDEPS_FILTER+= N${RELDIR:H}/msun
.endif
.endif
# Disable warnings in contributed sources.
CWARNFLAGS:= ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
# XXX For now, we don't allow libc to be compiled with
# -fstack-protector-all because it breaks rtld. We may want to make a librtld
# in the future to circumvent this.
SSP_CFLAGS:= ${SSP_CFLAGS:S/^-fstack-protector-all$/-fstack-protector/}
# Disable stack protection for SSP symbols.
SSP_CFLAGS:= ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
# Generate stack unwinding tables for cancellation points
CANCELPOINTS_CFLAGS:= ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}