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freebsd/lib/libc/Makefile
Daniel Eischen d201fe46e3 Remove _THREAD_SAFE and make libc thread-safe by default by
adding (weak definitions to) stubs for some of the pthread
functions.  If the threads library is linked in, the real
pthread functions will pulled in.

Use the following convention for system calls wrapped by the
threads library:
	__sys_foo - actual system call
	_foo - weak definition to __sys_foo
	foo - weak definition to __sys_foo

Change all libc uses of system calls wrapped by the threads
library from foo to _foo.  In order to define the prototypes
for _foo(), we introduce namespace.h and un-namespace.h
(suggested by bde).  All files that need to reference these
system calls, should include namespace.h before any standard
includes, then include un-namespace.h after the standard
includes and before any local includes.  <db.h> is an exception
and shouldn't be included in between namespace.h and
un-namespace.h  namespace.h will define foo to _foo, and
un-namespace.h will undefine foo.

Try to eliminate some of the recursive calls to MT-safe
functions in libc/stdio in preparation for adding a mutex
to FILE.  We have recursive mutexes, but would like to avoid
using them if possible.

Remove uneeded includes of <errno.h> from a few files.

Add $FreeBSD$ to a few files in order to pass commitprep.

Approved by:	-arch
2001-01-24 13:01:12 +00:00

58 lines
2.0 KiB
Makefile

# @(#)Makefile 8.2 (Berkeley) 2/3/94
# $FreeBSD$
#
# All library objects contain rcsid strings by default; they may be
# excluded as a space-saving measure. To produce a library that does
# not contain these strings, delete -DLIBC_RCS and -DSYSLIBC_RCS
# from CFLAGS below. To remove these strings from just the system call
# stubs, remove just -DSYSLIBC_RCS from CFLAGS.
LIB=c
SHLIB_MAJOR= 5
SHLIB_MINOR= 0
CFLAGS+=-DLIBC_RCS -DSYSLIBC_RCS -I${.CURDIR}/include
AINC= -I${.CURDIR}/${MACHINE_ARCH}
CLEANFILES+=tags
INSTALL_PIC_ARCHIVE= yes
PRECIOUSLIB= yes
#
# This is a list of syscalls that are renamed as _thread_sys_{syscall}
# so that libpthread and libc_r can override and/or replace them.
# In the case of libc_r replacement functions are provided, whereas
# libpthread can both override and provide replacement functions.
#
HIDDEN_SYSCALLS= _exit.o accept.o aio_suspend.o bind.o close.o connect.o \
dup.o dup2.o execve.o fchflags.o fchmod.o fchown.o fcntl.o \
flock.o fpathconf.o fstat.o fstatfs.o fsync.o getdirentries.o \
getpeername.o getsockname.o getsockopt.o ioctl.o \
kevent.o listen.o \
msync.o nanosleep.o nfssvc.o open.o poll.o read.o readv.o recvfrom.o \
recvmsg.o sched_yield.o select.o sendfile.o sendmsg.o sendto.o \
setsockopt.o shutdown.o sigaction.o sigaltstack.o \
sigpending.o sigprocmask.o sigreturn.o \
sigsuspend.o socket.o \
socketpair.o wait4.o write.o writev.o
#
# Include make rules that are shared with libc_r.
#
.include "${.CURDIR}/Makefile.inc"
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 index.c mcount.c rindex.c strcat.c strcmp.c strcpy.c \
strlen.c strncpy.c
libkern: libkern.gen libkern.${MACHINE_ARCH}
libkern.gen: ${KQSRCS} ${KSRCS}
cp -p ${.CURDIR}/quad/quad.h ${.ALLSRC} ${DESTDIR}/sys/libkern
libkern.${MACHINE_ARCH}:: ${KMSRCS}
.if defined(KMSRCS) && !empty(KMSRCS)
cp -p ${.ALLSRC} ${DESTDIR}/sys/libkern/${MACHINE_ARCH}
.endif
.include <bsd.lib.mk>