glibc/elf/Makefile
Roland McGrath f18edac3a3 Wed Jul 17 21:53:45 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* elf/Makefile (dl-routines): Add dl-cache.
	* elf/dl-cache.c: New file.
	* elf/dl-load.c (_dl_map_object): Check cache before default path.
1996-07-17 23:09:43 +00:00

113 lines
3.8 KiB
Makefile
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# Makefile for elf subdirectory of GNU C Library.
# Copyright (C) 1995, 1996 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., 675 Mass Ave,
# Cambridge, MA 02139, USA.
subdir := elf
headers = elf.h elfclass.h link.h dlfcn.h
routines = $(dl-routines) dl-open dl-close dl-symbol dl-support
# 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)
# But they are absent from the shared libc, because that code is in ld.so.
elide-routines.so = $(dl-routines) dl-support
# 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 = $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \
soinit.c sofini.c ldd.sh.in eval.c
extra-libs = libdl
libdl-routines := dlopen dlclose dlsym dlerror dladdr
all: # Make this the default target; it will be defined in Rules.
include ../Makeconfig
ifeq (yes,$(build-shared))
extra-objs = $(rtld-routines:=.so) soinit.so sofini.so
generated = librtld.so dl-allobjs.so
install-others = $(slibdir)/$(rtld-installed-name)
install-bin = ldd
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.
# We use this to produce both the ABI-compliant and Linux-compatible
# dynamic linker shared objects below.
$(objpfx)librtld.so: $(objpfx)dl-allobjs.so \
$(patsubst %,$(common-objpfx)lib%_pic.a,\
c $(LDLIBS-c.so:-l%=%))
$(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-gnu.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
# 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
$(slibdir)/$(rtld-installed-name): $(objpfx)ld.so; $(do-install-program)
$(objpfx)ldd: ldd.sh.in Makefile
sed 's%@RTLD@%$(slibdir)/$(rtld-installed-name)%g' < $< > $@.new
chmod 555 $@.new
mv -f $@.new $@
# muwahaha
LDFLAGS-dl.so = -Wl,-dynamic-linker,$(slibdir)/$(rtld-installed-name)
$(objpfx)libdl.so: $(objpfx)eval.so