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4d6acc61fa
* elf/dl-lookup.c (_dl_lookup_symbol): If no value and *REF is
null, consider it a strong reference and give the error.
Wed Jun 12 15:52:46 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* elf/dl-open.c (_dl_open): Correctly terminate relocating loop
after relocating NEW when it's the only new object.
* elf/dl-init.c (_dl_init_next): When out of initializers, set
_r_debug.r_state to RT_CONSISTENT and call _dl_debug_state just
before return.
* elf/rtld.c (dl_main): Move _dl_debug_initialize call after
relocation. Call it unconditionally and only fill in DT_DEBUG
if it's present. Then call _dl_debug_state with r_state RT_ADD
before running initializers.
* elf/dl-open.c (_dl_open): Call _dl_debug_initialize and then call
_dl_debug_state with r_state RT_ADD before running initializers
* elf/dl-close.c (_dl_close): Call _dl_debug_state with r_state
RT_DELETE before running finalizers and with RT_CONSISTENT just
before return.
* elf/Makefile (dl-routines): Add dl-debug.
* elf/dl-debug.c: New file.
* elf/rtld.c (_dl_r_debug): Rename to _r_debug and move to dl-debug.c.
(_dl_r_debug_state): Rename to _dl_debug_state and likewise move.
(dl_main): Use _dl_debug_initialize.
* elf/link.h: Fix name to _dl_debug_state in decl.
(_dl_debug_initialize): Declare new function from dl-debug.c.
(_r_debug): Declare it.
* Makerules (distinfo-vars): Add install-{lib,data,bin,sbin,others}.
In distinfo set $(subdir)-VAR and then set VAR to $($(subdir)-VAR).
* Makeconfig (rpath-link): New variable; add $(elfobjdir).
(default-rpath): Use it.
(built-program-cmd): Use it in LD_LIBRARY_PATH.
* Makeconfig (sysdep-configures): Prepend $(sysdep_dir) to names tried.
* sysdeps/unix/Dist: Add make-syscalls.sh.
* misc/Makefile (headers): Add sys/swap.h.
* posix/unistd.h: Remove decls for swapon, swapoff.
* sysdeps/generic/sys/swap.h: New file.
* sysdeps/unix/sysv/linux/sys/swap.h: New file.
* sysdeps/unix/sysv/linux/gnu/types.h: Remove temporary hack #define
of __kernel_fsid_t. It is correctly defines in <linux/types.h> now.
121 lines
4.1 KiB
Makefile
121 lines
4.1 KiB
Makefile
# Makefile for elf subdirectory of GNU C Library.
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# Copyright (C) 1995, 1996 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Library General Public License as
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# published by the Free Software Foundation; either version 2 of the
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# License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Library General Public License for more details.
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# You should have received a copy of the GNU Library General Public
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# License along with the GNU C Library; see the file COPYING.LIB. If
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# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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# Cambridge, MA 02139, USA.
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subdir := elf
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headers = elf.h elfclass.h link.h dlfcn.h
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routines = $(dl-routines) dl-open dl-close dl-symbol dl-support
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# The core dynamic linking functions are in libc for the static and
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# profiled libraries.
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dl-routines = $(addprefix dl-,load lookup object reloc deps \
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runtime error init fini debug)
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# But they are absent from the shared libc, because that code is in ld.so.
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elide-routines.so = $(dl-routines) dl-support
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# ld.so uses those routines, plus some special stuff for being the program
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# interpreter and operating independent of libc.
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rtld-routines := rtld $(dl-routines) dl-sysdep dl-minimal
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distribute = $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \
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soinit.c sofini.c ldd.sh.in linux-compat.c
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extra-libs = libdl
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libdl-routines := dlopen dlclose dlsym dlerror dladdr
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all: # Make this the default target; it will be defined in Rules.
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include ../Makeconfig
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ifeq (yes,$(build-shared))
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extra-objs = $(rtld-routines:=.so) soinit.so sofini.so
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generated = librtld.so dl-allobjs.so
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install-others = $(slibdir)/$(rtld-installed-name)
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install-bin = ldd
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ifneq (,$(filter linux% linux,$(config-os)))
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extra-objs += linux-compat.so
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install-others += $(slibdir)/ld-linux.so.1
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lib-noranlib: $(objpfx)ld-linux.so.1
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endif
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endif
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include ../Rules
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ifeq (yes, $(build-shared))
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# Make sure these things are built in the `make lib' pass so they can be used
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# to run programs during the `make others' pass.
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lib-noranlib: $(objpfx)$(rtld-installed-name) \
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$(addprefix $(objpfx),$(extra-objs))
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endif
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# Command to link into a larger single relocatable object.
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reloc-link = $(LINK.o) -nostdlib -nostartfiles -r -o $@
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$(objpfx)dl-allobjs.so: $(rtld-routines:%=$(objpfx)%.so)
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$(reloc-link) $^
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# Link together the dynamic linker into a single relocatable object.
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# We use this to produce both the ABI-compliant and Linux-compatible
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# dynamic linker shared objects below.
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$(objpfx)librtld.so: $(objpfx)dl-allobjs.so \
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$(patsubst %,$(common-objpfx)lib%_pic.a,\
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c $(LDLIBS-c.so:-l%=%))
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$(reloc-link) '-Wl,-(' $^ -lgcc '-Wl,-)'
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$(objpfx)ld.so: $(objpfx)librtld.so
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$(rtld-link) -Wl,-soname=$(rtld-installed-name)
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$(objpfx)ld-linux.so.1: $(objpfx)librtld.so
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$(rtld-link) -Wl,-soname=ld-linux.so.1
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define rtld-link
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$(LINK.o) -nostdlib -nostartfiles -shared -o $@ \
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-Wl,-rpath=$(default-rpath) $^
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endef
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# The dl code in the static libc needs a default library path.
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CFLAGS-dl-support.c = -D'DEFAULT_RPATH="$(default-rpath)"'
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ifneq (ld.so, $(rtld-installed-name))
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# Make sure ld-gnu.so.1 exists in the build directory so we can link
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# against it.
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$(objpfx)$(rtld-installed-name): $(objpfx)ld.so
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rm -f $@
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ln $< $@
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endif
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# The Linux-compatible dynamic linker shared object is just the same
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# with one object file of compatibility initialization code added.
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$(objpfx)ld-linux.so.1: $(objpfx)linux-compat.so
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# Specify the dependencies of libdl.so; its commands come from the generic
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# rule to build a shared library.
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$(objpfx)libdl.so: $(objpfx)libdl_pic.a $(common-objpfx)libc.so $(objpfx)ld.so
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$(slibdir)/$(rtld-installed-name): $(objpfx)ld.so; $(do-install-program)
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$(slibdir)/ld-linux.so.1: $(objpfx)ld-linux.so.1; $(do-install-program)
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$(objpfx)ldd: ldd.sh.in Makefile
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sed 's%@RTLD@%$(slibdir)/$(rtld-installed-name)%g' < $< > $@.new
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chmod 555 $@.new
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mv -f $@.new $@
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