0538aafc41
pwrite(2) syscalls are wrapped to provide compatibility with pre-7.x kernels which required padding before the off_t parameter. The fcntl(2) contains compatibility code to handle kernels before the struct flock was changed during the 8.x CURRENT development. The shims were reasonable to allow easier revert to the older kernel at that time. Now, two or three major releases later, shims do not serve any purpose. Such old kernels cannot handle current libc, so revert the compatibility code. Make padded syscalls support conditional under the COMPAT6 config option. For COMPAT32, the syscalls were under COMPAT6 already. Remove WITHOUT_SYSCALL_COMPAT build option, which only purpose was to (partially) disable the removed shims. Reviewed by: jhb, imp (previous versions) Discussed with: peter Sponsored by: The FreeBSD Foundation MFC after: 1 week
174 lines
5.3 KiB
Makefile
174 lines
5.3 KiB
Makefile
# @(#)Makefile 8.2 (Berkeley) 2/3/94
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# $FreeBSD$
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SHLIBDIR?= /lib
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.include <src.opts.mk>
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LIBC_SRCTOP?= ${.CURDIR}
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# Pick the current architecture directory for libc. In general, this is
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# named MACHINE_CPUARCH, but some ABIs are different enough to require
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# their own libc, so allow a directory named MACHINE_ARCH to override this.
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.if exists(${LIBC_SRCTOP}/${MACHINE_ARCH})
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LIBC_ARCH=${MACHINE_ARCH}
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.else
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LIBC_ARCH=${MACHINE_CPUARCH}
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.endif
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# All library objects contain FreeBSD revision strings by default; they may be
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# excluded as a space-saving measure. To produce a library that does
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# not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAGS
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# below. Note: there are no IDs for syscall stubs whose sources are generated.
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# To include legacy CSRG sccsid strings, add -DLIBC_SCCS and -DSYSLIBC_SCCS
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# to CFLAGS below. -DSYSLIBC_SCCS affects just the system call stubs.
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LIB=c
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SHLIB_MAJOR= 7
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SHLIB_LDSCRIPT=libc.ldscript
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WARNS?= 2
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CFLAGS+=-I${LIBC_SRCTOP}/include -I${LIBC_SRCTOP}/../../include
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CFLAGS+=-I${LIBC_SRCTOP}/${LIBC_ARCH}
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.if ${MK_NLS} != "no"
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CFLAGS+=-DNLS
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.endif
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CLEANFILES+=tags
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INSTALL_PIC_ARCHIVE=
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PRECIOUSLIB=
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.ifndef NO_THREAD_STACK_UNWIND
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CANCELPOINTS_CFLAGS=-fexceptions
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CFLAGS+=${CANCELPOINTS_CFLAGS}
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.endif
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#
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# Link with static libcompiler_rt.a.
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#
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LDFLAGS+= -nodefaultlibs
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LIBADD+= compiler_rt
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.if ${MK_SSP} != "no"
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LIBADD+= ssp_nonshared
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.endif
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# Extras that live in either libc.a or libc_nonshared.a
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LIBC_NONSHARED_SRCS=
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# Define (empty) variables so that make doesn't give substitution
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# errors if the included makefiles don't change these:
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MDSRCS=
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MISRCS=
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MDASM=
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MIASM=
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NOASM=
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.include "${LIBC_SRCTOP}/${LIBC_ARCH}/Makefile.inc"
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.include "${LIBC_SRCTOP}/db/Makefile.inc"
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.include "${LIBC_SRCTOP}/compat-43/Makefile.inc"
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.include "${LIBC_SRCTOP}/gdtoa/Makefile.inc"
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.include "${LIBC_SRCTOP}/gen/Makefile.inc"
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.include "${LIBC_SRCTOP}/gmon/Makefile.inc"
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.if ${MK_ICONV} != "no"
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.include "${LIBC_SRCTOP}/iconv/Makefile.inc"
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.endif
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.include "${LIBC_SRCTOP}/inet/Makefile.inc"
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.include "${LIBC_SRCTOP}/isc/Makefile.inc"
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.include "${LIBC_SRCTOP}/locale/Makefile.inc"
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.include "${LIBC_SRCTOP}/md/Makefile.inc"
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.include "${LIBC_SRCTOP}/nameser/Makefile.inc"
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.include "${LIBC_SRCTOP}/net/Makefile.inc"
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.include "${LIBC_SRCTOP}/nls/Makefile.inc"
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.include "${LIBC_SRCTOP}/posix1e/Makefile.inc"
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.if ${LIBC_ARCH} != "aarch64" && \
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${LIBC_ARCH} != "amd64" && \
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${LIBC_ARCH} != "powerpc64" && \
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${LIBC_ARCH} != "sparc64" && \
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${MACHINE_ARCH:Mmipsn32*} == "" && \
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${MACHINE_ARCH:Mmips64*} == ""
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.include "${LIBC_SRCTOP}/quad/Makefile.inc"
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.endif
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.include "${LIBC_SRCTOP}/regex/Makefile.inc"
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.include "${LIBC_SRCTOP}/resolv/Makefile.inc"
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.include "${LIBC_SRCTOP}/stdio/Makefile.inc"
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.include "${LIBC_SRCTOP}/stdlib/Makefile.inc"
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.include "${LIBC_SRCTOP}/stdlib/jemalloc/Makefile.inc"
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.include "${LIBC_SRCTOP}/stdtime/Makefile.inc"
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.include "${LIBC_SRCTOP}/string/Makefile.inc"
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.include "${LIBC_SRCTOP}/sys/Makefile.inc"
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.include "${LIBC_SRCTOP}/rpc/Makefile.inc"
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.include "${LIBC_SRCTOP}/uuid/Makefile.inc"
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.include "${LIBC_SRCTOP}/xdr/Makefile.inc"
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.if (${LIBC_ARCH} == "arm" && ${MACHINE_ARCH} != "armv6hf") ||\
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${LIBC_ARCH} == "mips"
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.include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
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.endif
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.if ${MK_NIS} != "no"
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CFLAGS+= -DYP
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.include "${LIBC_SRCTOP}/yp/Makefile.inc"
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.endif
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.include "${LIBC_SRCTOP}/capability/Makefile.inc"
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.if ${MK_HESIOD} != "no"
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CFLAGS+= -DHESIOD
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.endif
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.if ${MK_FP_LIBC} == "no"
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CFLAGS+= -DNO_FLOATING_POINT
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.endif
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.if ${MK_NS_CACHING} != "no"
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CFLAGS+= -DNS_CACHING
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.endif
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.if defined(_FREEFALL_CONFIG)
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CFLAGS+=-D_FREEFALL_CONFIG
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.endif
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STATICOBJS+=${LIBC_NONSHARED_SRCS:S/.c$/.o/}
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VERSION_DEF=${LIBC_SRCTOP}/Versions.def
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SYMBOL_MAPS=${SYM_MAPS}
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CFLAGS+= -DSYMBOL_VERSIONING
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# If there are no machine dependent sources, append all the
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# machine-independent sources:
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.if empty(MDSRCS)
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SRCS+= ${MISRCS}
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.else
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# Append machine-dependent sources, then append machine-independent sources
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# for which there is no machine-dependent variant.
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SRCS+= ${MDSRCS}
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.for _src in ${MISRCS}
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.if ${MDSRCS:R:M${_src:R}} == ""
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SRCS+= ${_src}
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.endif
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.endfor
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.endif
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KQSRCS= adddi3.c anddi3.c ashldi3.c ashrdi3.c cmpdi2.c divdi3.c iordi3.c \
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lshldi3.c lshrdi3.c moddi3.c muldi3.c negdi2.c notdi2.c qdivrem.c \
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subdi3.c ucmpdi2.c udivdi3.c umoddi3.c xordi3.c
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KSRCS= bcmp.c ffs.c ffsl.c fls.c flsl.c mcount.c strcat.c strchr.c \
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strcmp.c strcpy.c strlen.c strncpy.c strrchr.c
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libkern: libkern.gen libkern.${LIBC_ARCH}
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libkern.gen: ${KQSRCS} ${KSRCS}
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${CP} ${LIBC_SRCTOP}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
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libkern.${LIBC_ARCH}:: ${KMSRCS}
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.if defined(KMSRCS) && !empty(KMSRCS)
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${CP} ${.ALLSRC} ${DESTDIR}/sys/libkern/${LIBC_ARCH}
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.endif
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.include <bsd.arch.inc.mk>
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.include <bsd.lib.mk>
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# Disable warnings in contributed sources.
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CWARNFLAGS:= ${.IMPSRC:Ngdtoa_*.c:C/^.+$/${CWARNFLAGS}/:C/^$/-w/}
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# XXX For now, we don't allow libc to be compiled with
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# -fstack-protector-all because it breaks rtld. We may want to make a librtld
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# in the future to circumvent this.
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SSP_CFLAGS:= ${SSP_CFLAGS:S/^-fstack-protector-all$/-fstack-protector/}
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# Disable stack protection for SSP symbols.
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SSP_CFLAGS:= ${.IMPSRC:N*/stack_protector.c:C/^.+$/${SSP_CFLAGS}/}
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# Generate stack unwinding tables for cancellation points
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CANCELPOINTS_CFLAGS:= ${.IMPSRC:Mcancelpoints_*:C/^.+$/${CANCELPOINTS_CFLAGS}/:C/^$//}
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