freebsd-dev/libexec/rtld-aout/Makefile

#	$Id: Makefile,v 1.20 1996/09/12 03:42:54 bde Exp $

PROG=	ld.so
SRCS=	mdprologue.S rtld.c malloc.c shlib.c md.c support.c sbrk.c
MAN1=	rtld.1
LDDIR?= $(.CURDIR)/..
# As there is relocation going on behind GCC's back, don't cache function addresses.
PICFLAG=-fpic -fno-function-cse
CFLAGS+=-I$(LDDIR) -I$(.CURDIR) -I$(LDDIR)/$(MACHINE) $(PICFLAG) -DRTLD
LDFLAGS+=-Bshareable -Bsymbolic -assert nosymbolic
ASFLAGS+=-k
DPADD+=	${LIBC:S/c.a/c_pic.a/} ${LIBC:S/c.a/gcc_pic.a/}
LDADD+=	-lc_pic -lgcc_pic
BINDIR= /usr/libexec
INSTALLFLAGS+=	-fschg -C	# -C to install as atomically as possible
MLINKS= rtld.1 ld.so.1

.PATH: $(LDDIR) $(LDDIR)/$(MACHINE)

.if defined(DESTDIR)
$(PROG):
	$(LD) -o $(PROG) $(LDFLAGS) -nostdlib -L${DESTDIR}/usr/lib $(OBJS) $(LDADD)
.else
$(PROG):
	$(LD) -o $(PROG) $(LDFLAGS) $(OBJS) $(LDADD)
.endif

.include <bsd.prog.mk>
Update to handle new version ld.so.hints and info in executable for configurable fallback search paths, as well as new crt interface version. Also: - even faster getenv(), get all environment variable settings in a single pass. - ldd printf-like format specifications - minor code cleanups, one vsprintf -> vsnprintf (harmless) The library search sequence is a little more complete now. Before, it'd search $LD_LIBRARY_PATH (by opendir/readdir/closedir), then read the hints file, then read /usr/lib (again by scanning thr directory). It would then fail if there was no "found" library. Now, it does LD_LIBRARY_PATH and the hints file the same, but then uses a longer fallback path. The -R path is fetched from the executable if specified at build time, the ldconfig path is appended, and /usr/lib is appended to that. Duplicates are suppressed. This means that simply placing a new library in /usr/local/lib will work (the same as it did in /usr/lib) without needing ldconfig -m. It will find it quicker if the ldconfig is run though. Similar changes have been made to the NetBSD ld.so, but ours is rather different now due to John Polstra's speedups and fixes from a while back. The ldd printf-like format support came direct from NetBSD. Reviewed by: nate, jdp 1996-10-01 01:52:03 +00:00			`# $Id: Makefile,v 1.20 1996/09/12 03:42:54 bde Exp $`
Imported NetBSD's ld for shared libs. 1993-11-03 23:41:59 +00:00
			`PROG= ld.so`
Update to handle new version ld.so.hints and info in executable for configurable fallback search paths, as well as new crt interface version. Also: - even faster getenv(), get all environment variable settings in a single pass. - ldd printf-like format specifications - minor code cleanups, one vsprintf -> vsnprintf (harmless) The library search sequence is a little more complete now. Before, it'd search $LD_LIBRARY_PATH (by opendir/readdir/closedir), then read the hints file, then read /usr/lib (again by scanning thr directory). It would then fail if there was no "found" library. Now, it does LD_LIBRARY_PATH and the hints file the same, but then uses a longer fallback path. The -R path is fetched from the executable if specified at build time, the ldconfig path is appended, and /usr/lib is appended to that. Duplicates are suppressed. This means that simply placing a new library in /usr/local/lib will work (the same as it did in /usr/lib) without needing ldconfig -m. It will find it quicker if the ldconfig is run though. Similar changes have been made to the NetBSD ld.so, but ours is rather different now due to John Polstra's speedups and fixes from a while back. The ldd printf-like format support came direct from NetBSD. Reviewed by: nate, jdp 1996-10-01 01:52:03 +00:00			`SRCS= mdprologue.S rtld.c malloc.c shlib.c md.c support.c sbrk.c`
Import Paul Kranenburg's man page for ld.so (aka. rtld). Obtained from: NetBSD 1995-08-26 13:17:39 +00:00			`MAN1= rtld.1`
Imported NetBSD's ld for shared libs. 1993-11-03 23:41:59 +00:00			`LDDIR?= $(.CURDIR)/..`
Update to handle new version ld.so.hints and info in executable for configurable fallback search paths, as well as new crt interface version. Also: - even faster getenv(), get all environment variable settings in a single pass. - ldd printf-like format specifications - minor code cleanups, one vsprintf -> vsnprintf (harmless) The library search sequence is a little more complete now. Before, it'd search $LD_LIBRARY_PATH (by opendir/readdir/closedir), then read the hints file, then read /usr/lib (again by scanning thr directory). It would then fail if there was no "found" library. Now, it does LD_LIBRARY_PATH and the hints file the same, but then uses a longer fallback path. The -R path is fetched from the executable if specified at build time, the ldconfig path is appended, and /usr/lib is appended to that. Duplicates are suppressed. This means that simply placing a new library in /usr/local/lib will work (the same as it did in /usr/lib) without needing ldconfig -m. It will find it quicker if the ldconfig is run though. Similar changes have been made to the NetBSD ld.so, but ours is rather different now due to John Polstra's speedups and fixes from a while back. The ldd printf-like format support came direct from NetBSD. Reviewed by: nate, jdp 1996-10-01 01:52:03 +00:00			`# As there is relocation going on behind GCC's back, don't cache function addresses.`
			`PICFLAG=-fpic -fno-function-cse`
This is Paul K's latest set of ld changes. A commit was necessary at this late stage due to the fact that link.h was copyright Sun Microsystems. This version of ld sync's us up with NetBSD's ld and supports compatablily with NetBSD's -[zZ] flags (which we had reversed). Compiling with this new ld will give you RRS warnings for libraries which do not contain .type infomation - these wsarnings are harmless and will go away as soon as you recompile your libraries (cd /usr/src; make libraries). 1994-02-13 20:43:13 +00:00			`CFLAGS+=-I$(LDDIR) -I$(.CURDIR) -I$(LDDIR)/$(MACHINE) $(PICFLAG) -DRTLD`
			`LDFLAGS+=-Bshareable -Bsymbolic -assert nosymbolic`
			`ASFLAGS+=-k`
Add dependencies on libraries to DPADD. Someday this should be done automagically. -lfoo has to be right to work, but ${LIBFO0} is too easy to forget or misspell; nothing checks it and it should be different for shared libraries. 1994-08-28 18:49:06 +00:00			`DPADD+= ${LIBC:S/c.a/c_pic.a/} ${LIBC:S/c.a/gcc_pic.a/}`
Due to the deletion of the gcc support from libc we need again the -lgcc_pic library. rtld uses the udivd3 routine from it. Repeat the bug by simply compiling ld on current. 1994-03-10 23:19:54 +00:00			`LDADD+= -lc_pic -lgcc_pic`
Imported NetBSD's ld for shared libs. 1993-11-03 23:41:59 +00:00			`BINDIR= /usr/libexec`
Use `install -C' instead of lots of shell commands to install ld.so as atomically as possible. (Immutable targets can't be renamed without opening a window when neither the source nor the target is immutable. Perhaps there should be a rename_immutable syscall to do this if unsetting the immutable flags would work.) 1996-09-12 03:42:54 +00:00			`INSTALLFLAGS+= -fschg -C # -C to install as atomically as possible`
Import Paul Kranenburg's man page for ld.so (aka. rtld). Obtained from: NetBSD 1995-08-26 13:17:39 +00:00			`MLINKS= rtld.1 ld.so.1`
Imported NetBSD's ld for shared libs. 1993-11-03 23:41:59 +00:00
This is Paul K's latest set of ld changes. A commit was necessary at this late stage due to the fact that link.h was copyright Sun Microsystems. This version of ld sync's us up with NetBSD's ld and supports compatablily with NetBSD's -[zZ] flags (which we had reversed). Compiling with this new ld will give you RRS warnings for libraries which do not contain .type infomation - these wsarnings are harmless and will go away as soon as you recompile your libraries (cd /usr/src; make libraries). 1994-02-13 20:43:13 +00:00			`.PATH: $(LDDIR) $(LDDIR)/$(MACHINE)`

Update to handle new version ld.so.hints and info in executable for configurable fallback search paths, as well as new crt interface version. Also: - even faster getenv(), get all environment variable settings in a single pass. - ldd printf-like format specifications - minor code cleanups, one vsprintf -> vsnprintf (harmless) The library search sequence is a little more complete now. Before, it'd search $LD_LIBRARY_PATH (by opendir/readdir/closedir), then read the hints file, then read /usr/lib (again by scanning thr directory). It would then fail if there was no "found" library. Now, it does LD_LIBRARY_PATH and the hints file the same, but then uses a longer fallback path. The -R path is fetched from the executable if specified at build time, the ldconfig path is appended, and /usr/lib is appended to that. Duplicates are suppressed. This means that simply placing a new library in /usr/local/lib will work (the same as it did in /usr/lib) without needing ldconfig -m. It will find it quicker if the ldconfig is run though. Similar changes have been made to the NetBSD ld.so, but ours is rather different now due to John Polstra's speedups and fixes from a while back. The ldd printf-like format support came direct from NetBSD. Reviewed by: nate, jdp 1996-10-01 01:52:03 +00:00			`.if defined(DESTDIR)`
			`$(PROG):`
			`$(LD) -o $(PROG) $(LDFLAGS) -nostdlib -L${DESTDIR}/usr/lib $(OBJS) $(LDADD)`
			`.else`
			`$(PROG):`
Weak symbol support from NetBSD. This should bring us in sync with the NetBSD ld code except for local changes for dlopen() and friends and the hashing on the minor value of the shlibs. We should be binary compatible now with all their libraries. Obtained from: NetBSD 1995-03-04 17:49:20 +00:00			`$(LD) -o $(PROG) $(LDFLAGS) $(OBJS) $(LDADD)`
Update to handle new version ld.so.hints and info in executable for configurable fallback search paths, as well as new crt interface version. Also: - even faster getenv(), get all environment variable settings in a single pass. - ldd printf-like format specifications - minor code cleanups, one vsprintf -> vsnprintf (harmless) The library search sequence is a little more complete now. Before, it'd search $LD_LIBRARY_PATH (by opendir/readdir/closedir), then read the hints file, then read /usr/lib (again by scanning thr directory). It would then fail if there was no "found" library. Now, it does LD_LIBRARY_PATH and the hints file the same, but then uses a longer fallback path. The -R path is fetched from the executable if specified at build time, the ldconfig path is appended, and /usr/lib is appended to that. Duplicates are suppressed. This means that simply placing a new library in /usr/local/lib will work (the same as it did in /usr/lib) without needing ldconfig -m. It will find it quicker if the ldconfig is run though. Similar changes have been made to the NetBSD ld.so, but ours is rather different now due to John Polstra's speedups and fixes from a while back. The ldd printf-like format support came direct from NetBSD. Reviewed by: nate, jdp 1996-10-01 01:52:03 +00:00			`.endif`
Imported NetBSD's ld for shared libs. 1993-11-03 23:41:59 +00:00
			`.include <bsd.prog.mk>`