| # Makefile for elf subdirectory of GNU C Library. |
| |
| # Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. |
| # This file is part of the GNU C Library. |
| |
| # The GNU C Library is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU Library General Public License as |
| # published by the Free Software Foundation; either version 2 of the |
| # License, or (at your option) any later version. |
| |
| # The GNU C Library is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| # Library General Public License for more details. |
| |
| # You should have received a copy of the GNU Library General Public |
| # License along with the GNU C Library; see the file COPYING.LIB. If not, |
| # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| # Boston, MA 02111-1307, USA. |
| |
| subdir := elf |
| |
| headers = elf.h elfclass.h link.h dlfcn.h |
| routines = $(dl-routines) dl-open dl-close dl-symbol dl-support \ |
| dl-version enbl-secure |
| |
| # The core dynamic linking functions are in libc for the static and |
| # profiled libraries. |
| dl-routines = $(addprefix dl-,load cache lookup object reloc deps \ |
| runtime error init fini debug misc) |
| # But they are absent from the shared libc, because that code is in ld.so. |
| elide-routines.so = $(dl-routines) dl-support enbl-secure |
| |
| # ld.so uses those routines, plus some special stuff for being the program |
| # interpreter and operating independent of libc. |
| rtld-routines := rtld $(dl-routines) dl-sysdep dl-minimal |
| distribute = $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \ |
| soinit.c sofini.c ldd.sh.in ldd.bash.in eval.c |
| |
| extra-libs = libdl |
| extra-libs-others = $(extra-libs) |
| libdl-routines := dlopen dlclose dlsym dlvsym dlerror dladdr |
| libdl-map := libdl.map |
| |
| before-compile = $(objpfx)trusted-dirs.h |
| |
| |
| all: # Make this the default target; it will be defined in Rules. |
| |
| include ../Makeconfig |
| |
| ifeq (yes,$(build-shared)) |
| extra-objs = $(rtld-routines:=.so) soinit.so sofini.so eval.so |
| generated = librtld.so dl-allobjs.so |
| install-others = $(inst_slibdir)/$(rtld-installed-name) |
| install-bin = ldd |
| endif |
| |
| ifeq (yes,$(has-ldconfig)) |
| extra-objs += ldconfig.o |
| install-rootsbin = ldconfig |
| |
| $(objpfx)ldconfig: $(objpfx)ldconfig.o |
| $(CC) -nostdlib -nostartfiles -o $@ $(sysdep-LDFLAGS) -static \ |
| $(addprefix $(csu-objpfx),start.o) $(+preinit) \ |
| $(filter-out $(addprefix $(csu-objpfx),start.o) $(+preinit) \ |
| $(link-extra-libs) $(common-objpfx)libc% $(+postinit),$^) \ |
| $(link-extra-libs) $(common-objpfx)libc.a $(gnulib) $(+postinit) |
| endif |
| |
| include ../Rules |
| |
| |
| ifeq (yes,$(build-shared)) |
| # Make sure these things are built in the `make lib' pass so they can be used |
| # to run programs during the `make others' pass. |
| lib-noranlib: $(objpfx)$(rtld-installed-name) \ |
| $(addprefix $(objpfx),$(extra-objs)) |
| endif |
| |
| # Command to link into a larger single relocatable object. |
| reloc-link = $(LINK.o) -nostdlib -nostartfiles -r -o $@ |
| |
| $(objpfx)dl-allobjs.so: $(rtld-routines:%=$(objpfx)%.so) |
| $(reloc-link) $^ |
| |
| # Link together the dynamic linker into a single relocatable object. |
| $(objpfx)librtld.so: $(objpfx)dl-allobjs.so $(common-objpfx)libc_pic.a |
| $(reloc-link) '-Wl,-(' $^ -lgcc '-Wl,-)' |
| |
| $(objpfx)ld.so: $(objpfx)librtld.so |
| $(rtld-link) -Wl,-soname=$(rtld-installed-name) |
| |
| define rtld-link |
| $(LINK.o) -nostdlib -nostartfiles -shared -o $@ \ |
| -Wl,-rpath=$(default-rpath) $^ |
| endef |
| |
| # The dl code in the static libc needs a default library path. |
| CFLAGS-dl-support.c = -D'DEFAULT_RPATH="$(default-rpath)"' |
| |
| ifneq (ld.so,$(rtld-installed-name)) |
| # Make sure ld.so.1 exists in the build directory so we can link |
| # against it. |
| $(objpfx)$(rtld-installed-name): $(objpfx)ld.so |
| rm -f $@ |
| ln -s $(<F) $@ |
| endif |
| |
| # Build a file mentioning all trustworthy directories to look for shared |
| # libraries when using LD_LIBRARY_PATH in a setuid program. The user can |
| # add directories to the list by defining $(user-defined-trusted-dirs) |
| # before starting make. |
| $(objpfx)trusted-dirs.h: Makefile |
| $(make-target-directory) |
| (for dir in `echo "$(default-rpath) $(user-defined-trusted-dirs)" | \ |
| sed 's/:/ /g'`; do \ |
| echo " \"$$dir\","; \ |
| done;) > $@T |
| mv -f $@T $@ |
| CPPFLAGS-dl-load.c = -I$(objdir)/$(subdir) |
| CFLAGS-dl-load.c += -Wno-uninitialized |
| |
| # Specify the dependencies of libdl.so; its commands come from the generic |
| # rule to build a shared library. |
| $(objpfx)libdl.so: $(objpfx)libdl_pic.a $(common-objpfx)libc.so $(objpfx)ld.so |
| |
| $(inst_slibdir)/$(rtld-version-installed-name): $(objpfx)ld.so |
| $(do-install-program) |
| |
| $(inst_slibdir)/$(rtld-installed-name): \ |
| $(inst_slibdir)/$(rtld-version-installed-name) |
| $(make-shlib-link) |
| |
| ifneq ($(have-bash2),yes) |
| $(objpfx)ldd: ldd.sh.in $(common-objpfx)version.mk \ |
| $(common-objpfx)soversions.mk $(common-objpfx)config.make |
| sed -e 's%@RTLD@%$(slibdir)/$(rtld-installed-name)%g' \ |
| -e 's%@VERSION@%$(version)%g' < $< > $@.new |
| chmod 555 $@.new |
| mv -f $@.new $@ |
| else |
| $(objpfx)ldd: ldd.bash.in $(common-objpfx)version.mk \ |
| $(common-objpfx)soversions.mk $(common-objpfx)config.make |
| sed -e 's%@BASH@%$(BASH)%g' \ |
| -e 's%@RTLD@%$(slibdir)/$(rtld-installed-name)%g' \ |
| -e 's%@VERSION@%$(version)%g' \ |
| -e 's%@TEXTDOMAINDIR@%$(localedir)%g' < $< > $@.new |
| chmod 555 $@.new |
| mv -f $@.new $@ |
| endif |
| |
| # muwahaha |
| |
| LDFLAGS-dl.so = -Wl,-dynamic-linker,$(slibdir)/$(rtld-installed-name) |
| $(objpfx)libdl.so: $(objpfx)eval.so |