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freebsd-skq/libexec/rtld-elf/Makefile

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$Id$ -> $FreeBSD$
1999-08-28 00:22:10 +00:00
# $FreeBSD$
Fixed missing DPADDs. Fixed some style bugs (some usual ones for LDADD, and misformatting of $FreeBSD$).
2000-03-27 16:11:27 +00:00
Import the ELF dynamic linker. This is the ElfKit version with quite a few enhancements and bug fixes. There are still some known deficiencies, but it should be adequate to get us started with ELF. Submitted by: John Polstra <jdp@polstra.com>
1998-03-07 19:24:35 +00:00
PROG= ld-elf.so.1
Allow threading libraries to register their own locking implementation in case default one provided by rtld is not suitable. Consolidate various identical MD lock implementation into a single file using appropriate machine/atomic.h. Approved by: re (scottl)
2003-05-29 22:58:26 +00:00
SRCS= rtld_start.S rtld.c rtld_lock.c map_object.c malloc.c \
Add a new function dllockinit() for registering thread locking functions to be used by the dynamic linker. This can be called by threads packages at start-up time. I will add the call to libc_r soon. Also add a default locking method that is used up until dllockinit() is called. The default method works by blocking SIGVTALRM, SIGPROF, and SIGALRM in critical sections. It is based on the observation that most user-space threads packages implement thread preemption with one of these signals (usually SIGVTALRM). The dynamic linker has never been reentrant, but it became less reentrant in revision 1.34 of "src/libexec/rtld-elf/rtld.c". Starting with that revision, multiple threads each doing lazy binding could interfere with each other. The usual symptom was that a symbol was falsely reported as undefined at start-up time. It was rare but not unseen. This commit fixes it.
1999-12-27 04:44:04 +00:00
xmalloc.c debug.c reloc.c
- Backout botched attempt to intoduce MANSECT feature. - MAN[1-9] -> MAN.
2001-03-26 14:22:12 +00:00
MAN= rtld.1
Set CSTD to gnu99. We can only use on of the gnu?9 C languages. We can't use c89 due to use of 'inline', and c99 produces bad code.
2003-06-04 05:42:04 +00:00
CSTD?= gnu99
Allow threading libraries to register their own locking implementation in case default one provided by rtld is not suitable. Consolidate various identical MD lock implementation into a single file using appropriate machine/atomic.h. Approved by: re (scottl)
2003-05-29 22:58:26 +00:00
CFLAGS+= -Wall -DFREEBSD_ELF -DIN_RTLD
CFLAGS+= -I${.CURDIR}/${MACHINE_ARCH} -I${.CURDIR}
Eliminate all machine-dependent code from the main source body and the Makefile, and move it down into the architecture-specific subdirectories. Eliminate an asm() statement for the i386. Make the dynamic linker work if it is built as an executable instead of as a shared library. See i386/Makefile.inc to find out how to do it. Note, this change is not enabled and it might never be enabled. But it might be useful in the future. Building the dynamic linker as an executable should make it start up faster, because it won't have any relocations. But in practice I suspect the difference is negligible.
1999-04-09 00:28:43 +00:00
LDFLAGS+= -nostdlib -e .rtld_start
Use new backup feature of install(1).
2001-05-28 16:58:35 +00:00
INSTALLFLAGS= -fschg -C -b
As long threatened, stage 2 of making a dynamically-linked root a reality. Install rtld into /libexec.
2003-08-17 08:06:00 +00:00
BINDIR= /libexec
SYMLINKS= ${BINDIR}/ld-elf.so.1 /usr/libexec/ld-elf.so.1
Advertize rtld(1) as ld.so(1) in manual pages world
2003-02-13 23:07:28 +00:00
MLINKS= rtld.1 ld-elf.so.1.1 \
rtld.1 ld.so.1
Add alpha support. Submitted by: John Birrell <jb@cimlogic.com.au> (with extra hacks by me) Obtained from: Probably NetBSD
1998-09-04 19:03:57 +00:00
Dynamic object dependency mapping: libmap. This is an optional feature, disabled by default. This will be useful to people testing the various POSIX threading libraries under -CURRENT but can easily serve other needs.
2003-04-07 16:21:26 +00:00
#
# To enable the libmap.conf functionality please
# add 'WITH_LIBMAP=yes' to /etc/make.conf, recompile
# and reinstall rtld-elf.
.ifdef WITH_LIBMAP
CFLAGS+= -DWITH_LIBMAP
SRCS+= libmap.c
.endif
Eliminate all machine-dependent code from the main source body and the Makefile, and move it down into the architecture-specific subdirectories. Eliminate an asm() statement for the i386. Make the dynamic linker work if it is built as an executable instead of as a shared library. See i386/Makefile.inc to find out how to do it. Note, this change is not enabled and it might never be enabled. But it might be useful in the future. Building the dynamic linker as an executable should make it start up faster, because it won't have any relocations. But in practice I suspect the difference is negligible.
1999-04-09 00:28:43 +00:00
.if exists(${.CURDIR}/${MACHINE_ARCH}/Makefile.inc)
.include "${.CURDIR}/${MACHINE_ARCH}/Makefile.inc"
.endif
- Set the system immutable flag when installing ld.so to avoid people accidentally clobbering it. Submitted by: numberous people on -current
1999-02-15 05:02:54 +00:00
Eliminate all machine-dependent code from the main source body and the Makefile, and move it down into the architecture-specific subdirectories. Eliminate an asm() statement for the i386. Make the dynamic linker work if it is built as an executable instead of as a shared library. See i386/Makefile.inc to find out how to do it. Note, this change is not enabled and it might never be enabled. But it might be useful in the future. Building the dynamic linker as an executable should make it start up faster, because it won't have any relocations. But in practice I suspect the difference is negligible.
1999-04-09 00:28:43 +00:00
# If LDSCRIPT is defined, we build the dynamic linker as an
# executable. Otherwise we build it as a shared object. We ignore
# LDSCRIPT if the running kernel is too old to support it.
.if defined(LDSCRIPT)
KERN_OSRELDATE!= /sbin/sysctl -n kern.osreldate 2>/dev/null || echo 0
.if ${KERN_OSRELDATE} >= 400001
LDSO_IS_EXECUTABLE= yes
.endif
Add alpha support. Submitted by: John Birrell <jb@cimlogic.com.au> (with extra hacks by me) Obtained from: Probably NetBSD
1998-09-04 19:03:57 +00:00
.endif
Eliminate all machine-dependent code from the main source body and the Makefile, and move it down into the architecture-specific subdirectories. Eliminate an asm() statement for the i386. Make the dynamic linker work if it is built as an executable instead of as a shared library. See i386/Makefile.inc to find out how to do it. Note, this change is not enabled and it might never be enabled. But it might be useful in the future. Building the dynamic linker as an executable should make it start up faster, because it won't have any relocations. But in practice I suspect the difference is negligible.
1999-04-09 00:28:43 +00:00
.ifdef LDSO_IS_EXECUTABLE
OBJS+= dyn_hack.so
LDFLAGS+= -Wl,-T,${LDSCRIPT} -Wl,-E -Wl,-Bstatic
Fixed missing DPADDs. Fixed some style bugs (some usual ones for LDADD, and misformatting of $FreeBSD$).
2000-03-27 16:11:27 +00:00
DPADD= ${LIBC}
LDADD= -lc
Eliminate all machine-dependent code from the main source body and the Makefile, and move it down into the architecture-specific subdirectories. Eliminate an asm() statement for the i386. Make the dynamic linker work if it is built as an executable instead of as a shared library. See i386/Makefile.inc to find out how to do it. Note, this change is not enabled and it might never be enabled. But it might be useful in the future. Building the dynamic linker as an executable should make it start up faster, because it won't have any relocations. But in practice I suspect the difference is negligible.
1999-04-09 00:28:43 +00:00
.else
CFLAGS+= -fpic -DPIC
LDFLAGS+= -shared -Wl,-Bsymbolic
Fixed missing DPADDs. Fixed some style bugs (some usual ones for LDADD, and misformatting of $FreeBSD$).
2000-03-27 16:11:27 +00:00
DPADD= ${LIBC_PIC}
LDADD= -lc_pic
Eliminate all machine-dependent code from the main source body and the Makefile, and move it down into the architecture-specific subdirectories. Eliminate an asm() statement for the i386. Make the dynamic linker work if it is built as an executable instead of as a shared library. See i386/Makefile.inc to find out how to do it. Note, this change is not enabled and it might never be enabled. But it might be useful in the future. Building the dynamic linker as an executable should make it start up faster, because it won't have any relocations. But in practice I suspect the difference is negligible.
1999-04-09 00:28:43 +00:00
.endif
dyn_hack.so:
${CC} -shared -nostdlib -o dyn_hack.so -x c /dev/null
Import the ELF dynamic linker. This is the ElfKit version with quite a few enhancements and bug fixes. There are still some known deficiencies, but it should be adequate to get us started with ELF. Submitted by: John Polstra <jdp@polstra.com>
1998-03-07 19:24:35 +00:00
Add alpha support. Submitted by: John Birrell <jb@cimlogic.com.au> (with extra hacks by me) Obtained from: Probably NetBSD
1998-09-04 19:03:57 +00:00
.PATH: ${.CURDIR}/${MACHINE_ARCH}
Import the ELF dynamic linker. This is the ElfKit version with quite a few enhancements and bug fixes. There are still some known deficiencies, but it should be adequate to get us started with ELF. Submitted by: John Polstra <jdp@polstra.com>
1998-03-07 19:24:35 +00:00
.include <bsd.prog.mk>
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