0a54e4010f
1997-07-26 04:14 Ulrich Drepper <drepper@cygnus.com> * elf/Makefile (distribute): Add genrtldtbl.awk. (before-compile): Add rtldtbl.h. (GAWK): New variable. (generated): Add trusted-dirs.h and rtldtbl.h. ($(objpfx)rtldtbl.h): New rule. File is needed by dl-load.c. * elf/dl-load.c: Rewrite. Now use cache and look for shared objects in machine dependent directories. * elf/dl-object.c (_dl_new_object): Initialize l_rpath_dirs member. * elf/dl-support.c: Rename function to non_dynamic_init and add initialization for _dl_platform, _dl_platformlen, _dl_pagesize and call to initializer for search path. * elf/elf.h: Add AT_PLATFORM and AT_HWCAP. * elf/genrtldtbl.awk: New file. * elf/link.h: Add type definitions and declarations for search path cache. * elf/rtld.c: Add definitions of variables used for search path cache. * sysdeps/generic/dl-sysdep.c: Let auxiliary vector initialize _dl_platform. Initialize _dl_pagesize early and use this value. * sysdeps/i386/dl-machine.h: Add code for _dl_platform handling. * sysdeps/mach/hurd/dl-sysdep.c: Initialize _dl_pagesize. * sysdeps/unix/sysv/linux/dl-sysdep.c: Use _dl_pagesize instead of calling getpagesize. * elf/dl-error.c (_dl_signal_error): Make message nicer. * nss/libnss_files.map: Fix typo. Reported by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>. * sysdeps/generic/strsep.c: Optimize case where separator set contains only one character. * sysdeps/libm-ieee754/s_ccosh.c: Correct sign of result for real == +-Inf. * sysdeps/libm-ieee754/s_ccoshf.c: Likewise. * sysdeps/libm-ieee754/s_ccoshl.c: Likewise. 1997-07-25 09:15 H.J. Lu <hjl@gnu.ai.mit.edu> * sysdeps/sparc/udiv_qrnnd.S: Check PIC instead of __PIC__. * sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S: Likewise. * sysdeps/unix/mips/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/mips/clone.S: Likewise. * sysdeps/mips/bsd-_setjmp.S: Remove __PIC__ comment. * sysdeps/mips/bsd-setjmp.S: Likewise. * sysdeps/mips/dl-machine.h: Remove extra stuff. * sysdeps/mips/mips64/dl-machine.h: Likewise. 1997-07-25 18:55 Philip Blundell <Philip.Blundell@pobox.com> * sysdeps/standalone/arm/sysdep.c: New file. 1997-07-25 13:25 Philip Blundell <Philip.Blundell@pobox.com> * aout/Makefile: New file. * Makeconfig (binfmt-subdir): Assume a.out when not ELF. * sysdeps/generic/machine-gmon.h: Add warning about limitations of __builtin_return_address(). * sysdeps/arm/machine-gmon.h: New file, use assembly to avoid above problem. 1997-07-25 16:24 H.J. Lu <hjl@gnu.ai.mit.edu> * elf/dl-deps.c (_dl_map_object_deps): Fix a typo. 1997-07-22 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * math/libm-test.c (ccos_test, ccosh_test): Fix sign in some tests. 1997-07-24 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sunrpc/clnt_udp.c (clntudp_call): Rename cu_wait from timeout to not shadow the variable in the outer scope.
189 lines
6.5 KiB
Makefile
189 lines
6.5 KiB
Makefile
# Makefile for elf subdirectory of GNU C Library.
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# Copyright (C) 1995, 1996, 1997 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 not,
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# write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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subdir := elf
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headers = elf.h bits/elfclass.h bits/dlfcn.h link.h dlfcn.h
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routines = $(dl-routines) dl-open dl-close dl-symbol dl-support \
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dl-version enbl-secure
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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 cache lookup object reloc deps \
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runtime error init fini debug misc)
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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 enbl-secure
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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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dl-hash.h soinit.c sofini.c ldd.sh.in ldd.bash.in eval.c \
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genrtldtbl.awk
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extra-libs = libdl
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extra-libs-others = $(extra-libs)
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libdl-routines := dlopen dlclose dlsym dlvsym dlerror dladdr
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libdl-map := libdl.map
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before-compile = $(objpfx)trusted-dirs.h $(objpfx)rtldtbl.h
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# We need GNU awk for the genrtldtbl.awk script.
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GAWK = gawk
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all: # Make this the default target; it will be defined in Rules.
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include ../Makeconfig
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ifeq (yes,$(build-shared))
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extra-objs = $(rtld-routines:=.so) soinit.so sofini.so eval.so
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generated = librtld.so dl-allobjs.so trusted-dirs.h rtldtbl.h
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install-others = $(inst_slibdir)/$(rtld-installed-name)
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install-bin = ldd
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endif
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ifeq (yes,$(has-ldconfig))
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extra-objs += ldconfig.o
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install-rootsbin = ldconfig
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$(objpfx)ldconfig: $(objpfx)ldconfig.o
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$(CC) -nostdlib -nostartfiles -o $@ $(sysdep-LDFLAGS) -static \
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$(addprefix $(csu-objpfx),start.o) $(+preinit) \
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$(filter-out $(addprefix $(csu-objpfx),start.o) $(+preinit) \
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$(link-extra-libs) $(common-objpfx)libc% $(+postinit),$^) \
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$(link-extra-libs) $(common-objpfx)libc.a $(gnulib) $(+postinit)
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endif
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include ../Rules
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ifeq (yes,$(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) $^
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# Link together the dynamic linker into a single relocatable object.
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$(objpfx)librtld.so: $(objpfx)dl-allobjs.so $(common-objpfx)libc_pic.a
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$(reloc-link) '-Wl,-(' $^ -lgcc '-Wl,-)'
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# Do we need a linker script?
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rtld-ldscript-in := $(firstword $(wildcard $(+sysdep_dirs:%=%/rtld-ldscript.in)))
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ifneq (,$(rtld-ldscript-in))
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LDFLAGS-rtld = -T $(objpfx)rtld-ldscript
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before-compile += $(objpfx)rtld-ldscript
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rtld-parms = $(wildcard $(+sysdep_dirs:%=%/rtld-parms))
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include $(rtld-parms)
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generated += rtld-ldscript
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$(objpfx)rtld-ldscript: $(rtld-ldscript-in) $(rtld-parms)
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sed -e 's#@@rtld-oformat@@#$(rtld-oformat)#' \
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-e 's#@@rtld-arch@@#$(rtld-arch)#' \
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-e 's#@@rtld-entry@@#$(rtld-entry)#' \
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-e 's#@@rtld-base@@#$(rtld-base)#' $< >$@
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$(objpfx)ld.so: $(objpfx)librtld.so $(objpfx)rtld-ldscript
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$(rtld-link) -Wl,-soname=$(rtld-installed-name)
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define rtld-link
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$(LINK.o) -nostdlib -nostartfiles -shared -o $@ \
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-Wl,-rpath=$(default-rpath) $(LDFLAGS-rtld) \
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$(filter-out $(objpfx)rtld-ldscript,$^)
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endef
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else
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$(objpfx)ld.so: $(objpfx)librtld.so
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$(rtld-link) -Wl,-soname=$(rtld-installed-name)
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define rtld-link
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$(LINK.o) -nostdlib -nostartfiles -shared -o $@ \
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-Wl,-rpath=$(default-rpath) $^
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endef
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endif
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# The dl code in the static libc needs a default library path.
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CFLAGS-dl-support.c = -D'DEFAULT_RPATH="$(default-rpath)"'
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ifneq (ld.so,$(rtld-installed-name))
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# Make sure ld.so.1 exists in the build directory so we can link
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# against it.
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$(objpfx)$(rtld-installed-name): $(objpfx)ld.so
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rm -f $@
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ln -s $(<F) $@
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endif
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# Build a file mentioning all trustworthy directories to look for shared
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# libraries when using LD_LIBRARY_PATH in a setuid program. The user can
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# add directories to the list by defining $(user-defined-trusted-dirs)
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# before starting make.
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$(objpfx)trusted-dirs.h: Makefile
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$(make-target-directory)
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(for dir in `echo "$(default-rpath) $(user-defined-trusted-dirs)" | \
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sed 's/:/ /g'`; do \
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echo " \"$$dir\","; \
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done;) > $@T
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mv -f $@T $@
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$(objpfx)rtldtbl.h: Makefile
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$(make-target-directory)
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echo "$(default-rpath)" | $(GAWK) -f genrtldtbl.awk > $@T
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mv -f $@T $@
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CPPFLAGS-dl-load.c = -I$(objdir)/$(subdir)
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CFLAGS-dl-load.c += -Wno-uninitialized
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# Specify the dependencies of libdl.so; its commands come from the generic
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# rule to build a shared library.
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$(objpfx)libdl.so: $(objpfx)libdl_pic.a $(common-objpfx)libc.so $(objpfx)ld.so
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$(inst_slibdir)/$(rtld-version-installed-name): $(objpfx)ld.so
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$(do-install-program)
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$(inst_slibdir)/$(rtld-installed-name): \
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$(inst_slibdir)/$(rtld-version-installed-name)
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$(make-shlib-link)
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ifneq ($(have-bash2),yes)
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$(objpfx)ldd: ldd.sh.in $(common-objpfx)version.mk \
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$(common-objpfx)soversions.mk $(common-objpfx)config.make
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sed -e 's%@RTLD@%$(slibdir)/$(rtld-installed-name)%g' \
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-e 's%@VERSION@%$(version)%g' < $< > $@.new
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chmod 555 $@.new
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mv -f $@.new $@
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else
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$(objpfx)ldd: ldd.bash.in $(common-objpfx)version.mk \
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$(common-objpfx)soversions.mk $(common-objpfx)config.make
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sed -e 's%@BASH@%$(BASH)%g' \
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-e 's%@RTLD@%$(slibdir)/$(rtld-installed-name)%g' \
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-e 's%@VERSION@%$(version)%g' \
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-e 's%@TEXTDOMAINDIR@%$(localedir)%g' < $< > $@.new
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chmod 555 $@.new
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mv -f $@.new $@
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endif
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# muwahaha
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LDFLAGS-dl.so = -Wl,-dynamic-linker,$(slibdir)/$(rtld-installed-name)
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$(objpfx)libdl.so: $(objpfx)eval.so
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