mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 22:40:05 +00:00
4770745624
Tue Dec 3 08:38:15 1996 Richard Henderson <rth@tamu.edu> * sysdeps/unix/alpha/sysdep.S: Remove definition of __errno_location. Reformat copyright. * elf/rtld.c (_dl_start): Don't dereference the value returned by elf_machine_got to get _DYNAMIC, instead call new function elf_machine_dynamic. * sysdeps/alpha/dl-machine.h: Permute elf_machine_got to elf_machine_dynamic. Reformat copyright. * sysdeps/i386/dl-machine.h: Likewise. * sysdeps/m68k/dl-machine.h: Likewise. * sysdeps/mips/dl-machine.h: Likewise. * sysdeps/sparc/dl-machine.h: Likewise. * sysdeps/stub/dl-machine.h: Likewise. Tue Oct 15 23:46:00 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * MakeTAGS (sysdep_dirs): Include add-on sysdep directories. Tue Dec 3 02:06:18 1996 Ulrich Drepper <drepper@cygnus.com> * Makerules ($(libdir)/libc.so): Make first line of generated link script contain `/* GNU ld script'. This will be used in ldconfig to check for linker scripts. * sysdeps/mach/hurd/libc-ldscript: Likewise. * sysdeps/mach/hurd/libc_p-ldscript: Likewise. * stdlib/getsubopt.c: Update copyright. Correct typo in comment.
895 lines
31 KiB
Plaintext
895 lines
31 KiB
Plaintext
# Copyright (C) 1991, 92, 93, 94, 95, 96 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.
|
||
|
||
#
|
||
# Common rules for making the GNU C library. This file is included
|
||
# by the top-level Makefile and by all subdirectory makefiles
|
||
# (through Rules).
|
||
#
|
||
ifneq (,)
|
||
This makefile requires GNU Make.
|
||
endif
|
||
|
||
REQUIRED_MAKE_VERSION = 3.74
|
||
REAL_MAKE_VERSION = $(shell echo "$(MAKE_VERSION)" | sed 's/ .*//')
|
||
|
||
ifneq ($(REQUIRED_MAKE_VERSION), \
|
||
$(firstword $(sort $(REAL_MAKE_VERSION) $(REQUIRED_MAKE_VERSION))))
|
||
Wrong GNU Make version. See above for the version needed.
|
||
endif
|
||
|
||
|
||
ifdef subdir
|
||
.. := ../
|
||
endif # subdir
|
||
|
||
# If `sources' was defined by the parent makefile, undefine it so
|
||
# we will later get it from wildcard search in this directory.
|
||
ifneq "$(findstring env,$(origin sources))" ""
|
||
sources :=
|
||
endif
|
||
|
||
oPATH := $(PATH)
|
||
PATH := this definition should take precedence over $(oPATH)
|
||
ifeq ($(PATH),$(oPATH))
|
||
You must not use the -e flag when building the GNU C library.
|
||
else
|
||
PATH := $(oPATH)
|
||
endif
|
||
|
||
ifndef +included-Makeconfig
|
||
include $(..)Makeconfig
|
||
endif
|
||
|
||
# `configure' writes a definition of `config-sysdirs' in `config.make'.
|
||
sysdirs = $(strip $(full-config-sysdirs))
|
||
|
||
+sysdir_pfx = $(common-objpfx)
|
||
|
||
export sysdirs := $(sysdirs)
|
||
|
||
+sysdep_dirs := $(full-config-sysdirs)
|
||
ifdef objdir
|
||
+sysdep_dirs := $(objdir) $(+sysdep_dirs)
|
||
endif
|
||
|
||
# Add -I switches to get the right sysdep directories.
|
||
# `+includes' in Makeconfig references $(+sysdep-includes).
|
||
+sysdep-includes := $(addprefix -I,$(+sysdep_dirs))
|
||
|
||
# The name of the symbol table archive member. The default is suitable for
|
||
# BSD style archives. It can be overridden in sysdep Makefiles when SYSV
|
||
# style archive are used.
|
||
ifeq (no,$(elf))
|
||
ar-symtab-name = __.SYMDEF
|
||
else
|
||
ar-symtab-name = # The null name is used in ELF archives.
|
||
endif
|
||
|
||
# Include any system-specific makefiles.
|
||
|
||
# This is here so things in sysdep Makefiles can easily depend on foo.h as
|
||
# appropriate and not worry about where foo.h comes from, which may be
|
||
# system dependent and not known by that Makefile.
|
||
vpath %.h $(subst $(empty) ,:,$(strip $(common-objpfx) $(objpfx) \
|
||
$(+sysdep_dirs) $(..)))
|
||
|
||
# Some sysdep makefiles use this to distinguish being included here from
|
||
# being included individually by a subdir makefile (hurd/Makefile needs this).
|
||
in-Makerules := yes
|
||
|
||
ifndef avoid-generated
|
||
-include $(+sysdir_pfx)sysd-Makefile
|
||
ifneq ($(sysd-Makefile-sysdirs),$(config-sysdirs))
|
||
sysd-Makefile-force = FORCE
|
||
FORCE:
|
||
endif
|
||
$(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules \
|
||
$(sysd-Makefile-force)
|
||
-@rm -f $@T
|
||
(echo 'sysd-Makefile-sysdirs := $(config-sysdirs)'; \
|
||
for dir in $(config-sysdirs); do \
|
||
file=$$dir/Makefile; \
|
||
case $$dir in \
|
||
/*) rel= ;; \
|
||
*) rel=$(..) ;; \
|
||
esac; \
|
||
if [ -f $$rel$$file ]; then \
|
||
case $$dir in \
|
||
/*) echo include "$$file" ;; \
|
||
*) echo include "\$$(..)$$file" ;; \
|
||
esac; \
|
||
else true; fi; \
|
||
done; \
|
||
echo 'sysd-Makefile-done=t') > $@T
|
||
mv -f $@T $@
|
||
endif
|
||
|
||
ifndef sysd-Makefile-done
|
||
# Don't do deps until this exists, because it might change the sources list.
|
||
no_deps=t
|
||
endif
|
||
|
||
|
||
# Reorder before-compile so that mach things come first, and hurd things
|
||
# second, before all else. The mach and hurd subdirectories have many
|
||
# generated header files which the much of rest of the library depends on,
|
||
# so it is best to build them first (and mach before hurd, at that).
|
||
before-compile := $(filter $(common-objpfx)mach% $(common-objpfx)hurd%,\
|
||
$(before-compile)) \
|
||
$(filter-out $(common-objpfx)mach% $(common-objpfx)hurd%,\
|
||
$(before-compile))
|
||
|
||
# Remove existing files from `before-compile'. Things are added there when
|
||
# they must exist for dependency generation to work right, but once they
|
||
# exist there is no further need for every single file to depend on them,
|
||
# and those gratuitous dependencies result in many gratuitous
|
||
# recompilations.
|
||
before-compile := $(filter-out $(wildcard $(before-compile)),$(before-compile))
|
||
|
||
# Don't let any before-compile file be an intermediate and get removed.
|
||
ifdef before-compile
|
||
$(before-compile):
|
||
endif
|
||
|
||
# Generate an ordered list of implicit rules which find the source files in
|
||
# each sysdep directory. The old method was to use vpath to search all the
|
||
# sysdep directories. However, that had the problem that a .S file in a
|
||
# later directory would be chosen over a .c file in an earlier directory,
|
||
# which does not preserve the desired sysdeps ordering behavior.
|
||
|
||
# When making the list of .d files to include, we can't know which ones
|
||
# have source in .s files, and thus do not in fact need a .d file.
|
||
# So we must define rules to make .d files for .s files.
|
||
define make-dummy-dep
|
||
$(addprefix ln $(common-objpfx)dummy.d ,$(filter-out $(wildcard $@),$@))
|
||
endef
|
||
$(common-objpfx)dummy.d:
|
||
echo '# .s files cannot contain includes, so they need no deps.' > $@
|
||
|
||
# It matters that this set of rules, for compiling from sources in
|
||
# the current directory (the $srcdir/$subdir) come before the
|
||
# generated sysdep rules in included from sysd-rules below. When
|
||
# compiling in the source tree, generated sources go into the current
|
||
# directory, and those should be chosen before any sources in sysdeps.
|
||
$(objpfx)%.o: %.S $(before-compile); $(compile-command.S)
|
||
$(objpfx)%.so: %.S $(before-compile); $(compile-command.S)
|
||
$(objpfx)%.po: %.S $(before-compile); $(compile-command.S)
|
||
$(objpfx)%.go: %.S $(before-compile); $(compile-command.S)
|
||
$(objpfx)%.d: %.S $(before-compile); $(+make-deps)
|
||
$(objpfx)%.o: %.s $(before-compile); $(compile-command.s)
|
||
$(objpfx)%.so: %.s $(before-compile); $(compile-command.s)
|
||
$(objpfx)%.po: %.s $(before-compile); $(compile-command.s)
|
||
$(objpfx)%.go: %.s $(before-compile); $(compile-command.s)
|
||
$(objpfx)%.d: %.s $(common-objpfx)dummy.d; $(make-dummy-dep)
|
||
$(objpfx)%.o: %.c $(before-compile); $(compile-command.c)
|
||
$(objpfx)%.so: %.c $(before-compile); $(compile-command.c)
|
||
$(objpfx)%.po: %.c $(before-compile); $(compile-command.c)
|
||
$(objpfx)%.go: %.c $(before-compile); $(compile-command.c)
|
||
$(objpfx)%.d: %.c $(before-compile); $(+make-deps)
|
||
|
||
# Omit the objpfx rules when building in the source tree, because
|
||
# objpfx is empty and so these rules just override the ones above.
|
||
ifdef objpfx
|
||
# Define first rules to find the source files in $(objpfx).
|
||
# Generated source files will end up there.
|
||
$(objpfx)%.o: $(objpfx)%.S $(before-compile); $(compile-command.S)
|
||
$(objpfx)%.so: $(objpfx)%.S $(before-compile); $(compile-command.S)
|
||
$(objpfx)%.po: $(objpfx)%.S $(before-compile); $(compile-command.S)
|
||
$(objpfx)%.go: $(objpfx)%.S $(before-compile); $(compile-command.S)
|
||
$(objpfx)%.d: $(objpfx)%.S $(before-compile); $(+make-deps)
|
||
$(objpfx)%.o: $(objpfx)%.s $(before-compile); $(compile-command.s)
|
||
$(objpfx)%.so: $(objpfx)%.s $(before-compile); $(compile-command.s)
|
||
$(objpfx)%.po: $(objpfx)%.s $(before-compile); $(compile-command.s)
|
||
$(objpfx)%.go: $(objpfx)%.s $(before-compile); $(compile-command.s)
|
||
$(objpfx)%.d: $(objpfx)%.s $(common-objpfx)dummy.d; $(make-dummy-dep)
|
||
$(objpfx)%.o: $(objpfx)%.c $(before-compile); $(compile-command.c)
|
||
$(objpfx)%.so: $(objpfx)%.c $(before-compile); $(compile-command.c)
|
||
$(objpfx)%.po: $(objpfx)%.c $(before-compile); $(compile-command.c)
|
||
$(objpfx)%.go: $(objpfx)%.c $(before-compile); $(compile-command.c)
|
||
$(objpfx)%.d: $(objpfx)%.c $(before-compile); $(+make-deps)
|
||
endif
|
||
|
||
# System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard
|
||
# patterns matching sysdep directories whose assembly source files should
|
||
# be suppressed.
|
||
ifdef inhibit-sysdep-asm
|
||
define open-check-inhibit-asm
|
||
case $$sysdir in $(subst $(empty) ,|,$(inhibit-sysdep-asm))) : ;; *)
|
||
endef
|
||
close-check-inhibit-asm = ;; esac ;
|
||
endif
|
||
|
||
# Don't include sysd-rules until sysd-Makefile is already there and has been
|
||
# included. It might define inhibit-sysdep-asm, which would affect the
|
||
# contents of sysd-rules.
|
||
ifdef sysd-Makefile-done
|
||
-include $(+sysdir_pfx)sysd-rules
|
||
ifneq ($(sysd-rules-sysdirs),$(config-sysdirs))
|
||
# The value of $(+sysdep_dirs) the sysd-rules was computed for
|
||
# differs from the one we are using now. So force a rebuild of sysd-rules.
|
||
sysd-rules-force = FORCE
|
||
FORCE:
|
||
endif
|
||
endif
|
||
$(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
|
||
$(wildcard $(foreach dir,$(sysdirs),\
|
||
$(dir)/Makefile))\
|
||
$(sysd-rules-force)
|
||
-@rm -f $@T
|
||
(echo 'sysd-rules-sysdirs := $(config-sysdirs)'; \
|
||
for sysdir in $(config-sysdirs); do \
|
||
case $$sysdir in \
|
||
/*) dir=$$sysdir ;; \
|
||
*) dir="\$$(..)$$sysdir" ;; \
|
||
esac; \
|
||
for o in $(object-suffixes); do \
|
||
$(open-check-inhibit-asm) \
|
||
echo "\$$(objpfx)%$$o: $$dir/%.S \$$(before-compile); \
|
||
\$$(compile-command.S)"; \
|
||
echo "\$$(objpfx)%$$o: $$dir/%.s \$$(before-compile); \
|
||
\$$(compile-command.s)"; \
|
||
$(close-check-inhibit-asm) \
|
||
echo "\$$(objpfx)%$$o: $$dir/%.c \$$(before-compile); \
|
||
\$$(compile-command.c)"; \
|
||
done; \
|
||
$(open-check-inhibit-asm) \
|
||
echo "\$$(objpfx)%.d: $$dir/%.s \$$(common-objpfx)dummy.d; \
|
||
\$$(make-dummy-dep)"; \
|
||
echo "\$$(objpfx)%.d: $$dir/%.S \$$(before-compile); \
|
||
\$$(+make-deps)"; \
|
||
$(close-check-inhibit-asm) \
|
||
echo "\$$(objpfx)%.d: $$dir/%.c \$$(before-compile); \
|
||
\$$(+make-deps)"; \
|
||
done; \
|
||
echo 'sysd-rules-done = t') > $@T
|
||
mv -f $@T $@
|
||
|
||
ifndef sysd-rules-done
|
||
# Don't do deps until this exists, because it provides rules to make the deps.
|
||
no_deps=t
|
||
endif
|
||
|
||
|
||
ifndef compile-command.S
|
||
compile-command.S = $(compile.S) $(OUTPUT_OPTION)
|
||
endif
|
||
ifndef compile-command.s
|
||
compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION)
|
||
endif
|
||
ifndef compile-command.c
|
||
compile-command.c = $(compile.c) $(OUTPUT_OPTION)
|
||
endif
|
||
|
||
# GCC can grok options after the file name, and it looks nicer that way.
|
||
compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS)
|
||
compile.S = $(CC) $< -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS)
|
||
COMPILE.S = $(CC) -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS)
|
||
COMPILE.s = $(filter-out -pipe,$(CC)) -c $(ASFLAGS)
|
||
|
||
# We need this for the output to go in the right place. It will default to
|
||
# empty if make was configured to work with a cc that can't grok -c and -o
|
||
# together. You can't compile the C library with such a compiler.
|
||
OUTPUT_OPTION = -o $@
|
||
|
||
S-CPPFLAGS = $(asm-CPPFLAGS)
|
||
define +make-deps
|
||
$(make-target-directory)
|
||
-@rm -f $@
|
||
$(+mkdep) $< $(CPPFLAGS) $($(<:$*.%=%)-CPPFLAGS) | \
|
||
sed -e 's,$(subst .,\.,$*)\.o,$(foreach o,$(object-suffixes),$(@:.d=$o)) $@,' \
|
||
$(sed-remove-objpfx) > $(@:.d=.T)
|
||
mv -f $(@:.d=.T) $@
|
||
endef
|
||
ifneq (,$(objpfx))
|
||
# Continuation lines here are dangerous because they introduce spaces!
|
||
define sed-remove-objpfx
|
||
-e 's@ $(subst .,\.,$(subst @,\@,$(common-objpfx)))@ $$(common-objpfx)@g' \
|
||
-e 's@^$(subst .,\.,$(subst @,\@,$(common-objpfx)))@$$(common-objpfx)@g'
|
||
endef
|
||
endif
|
||
|
||
# Shared library building.
|
||
|
||
ifeq (yes,$(build-shared))
|
||
|
||
# Pattern rule to build a shared object from an archive of PIC objects.
|
||
# This must come after the installation rules so Make doesn't try to
|
||
# build shared libraries in place from the installed *_pic.a files.
|
||
# $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies
|
||
# on other shared objects.
|
||
lib%.so: lib%_pic.a; $(build-shlib)
|
||
|
||
ifeq ($(have-no-whole-archive),yes)
|
||
no-whole-archive = -Wl,--no-whole-archive
|
||
else
|
||
no-whole-archive =
|
||
endif
|
||
|
||
interp-obj = $(common-objpfx)interp.so
|
||
$(interp-obj): $(common-objpfx)%.so: $(..)%.c
|
||
$(compile-command.c)
|
||
common-generated += interp.so
|
||
CFLAGS-interp.c = -D'RUNTIME_LINKER="$(slibdir)/$(rtld-installed-name)"'
|
||
|
||
$(common-objpfx)libc.so: $(interp-obj)
|
||
$(patsubst %,$(objpfx)%.so,$(extra-libs)): $(interp-obj)
|
||
|
||
define build-shlib
|
||
$(LINK.o) -shared -o $@ $(sysdep-LDFLAGS) $(config-LDFLAGS) \
|
||
-B$(csu-objpfx) \
|
||
-Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \
|
||
$(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
|
||
-L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
|
||
-Wl,--whole-archive $^ $(no-whole-archive) \
|
||
$(LDLIBS-$(@F:lib%.so=%).so)
|
||
endef
|
||
|
||
# Don't try to use -lc when making libc.so itself.
|
||
# Also omits crti.o and crtn.o, which we do not want
|
||
# since we define our own `.init' section specially.
|
||
LDFLAGS-c.so = -nostdlib -nostartfiles
|
||
# Give libc.so an entry point and make it directly runnable itself.
|
||
LDFLAGS-c.so += -e __libc_main
|
||
# Use our own special initializer and finalizer files for libc.so.
|
||
$(common-objpfx)libc.so: $(elfobjdir)/soinit.so \
|
||
$(common-objpfx)libc_pic.a \
|
||
$(elfobjdir)/sofini.so $(elfobjdir)/ld.so
|
||
$(build-shlib)
|
||
|
||
ifdef libc.so-version
|
||
$(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so
|
||
rm -f $@
|
||
ln -s $(<F) $@ || ln $< $@
|
||
endif
|
||
endif
|
||
|
||
# Some files must not be compiled with the exception handler mechanism
|
||
# enabled (introduced in gcc-2.8). Use $(no-exceptions) in the
|
||
# appropriate CFLAGS definition.
|
||
ifeq ($(have-no-exceptions),yes)
|
||
no-exceptions = -fno-exceptions
|
||
else
|
||
no-exceptions =
|
||
endif
|
||
|
||
# Figure out the source filenames in this directory.
|
||
|
||
override sources := $(addsuffix .c,$(filter-out $(elided-routines),\
|
||
$(routines) $(aux) \
|
||
$(sysdep_routines)))
|
||
sysdep_routines := $(sysdep_routines)
|
||
|
||
headers := $(headers) $(sysdep_headers)
|
||
|
||
# This is the list of all object files, gotten by
|
||
# replacing every ".c" in `sources' with a ".o".
|
||
override objects := $(addprefix $(objpfx),$(sources:.c=.o))
|
||
|
||
|
||
# This variable is used in ``include $(o-iterator)'' after defining
|
||
# $(o-iterator-doit) to produce some desired rule using $o for the object
|
||
# suffix, and setting $(object-suffixes-left) to $(object-suffixes); a copy
|
||
# is produced for each object suffix in use.
|
||
o-iterator = $(patsubst %,$(..)o-iterator.mk,$(object-suffixes-left))
|
||
|
||
# The makefile may define $(extra-libs) with `libfoo libbar'
|
||
# to build libfoo.a et al from the modules listed in $(libfoo-routines).
|
||
ifdef extra-libs
|
||
# extra-lib.mk is included once for each extra lib to define rules
|
||
# to build it, and to add its objects to the various variables.
|
||
# During its evaluation, $(lib) is set to the name of the library.
|
||
extra-libs-left := $(extra-libs)
|
||
include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
|
||
endif
|
||
|
||
+depfiles := $(strip $(sources:.c=.d) \
|
||
$(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.so=.o))) \
|
||
$(addsuffix .d,$(others) $(tests)))
|
||
+depfiles := $(addprefix $(objpfx),\
|
||
$(filter-out $(addsuffix .d,$(omit-deps)),\
|
||
$(+depfiles)))
|
||
|
||
ifdef +depfiles
|
||
ifneq ($(no_deps),t)
|
||
-include $(+depfiles)
|
||
endif
|
||
endif
|
||
|
||
# Maximize efficiency by minimizing the number of rules.
|
||
.SUFFIXES: # Clear the suffix list.
|
||
# Add the suffixes we use.
|
||
.SUFFIXES: .a $(object-suffixes) .S .s .c .h .d
|
||
|
||
# Generic rule for making directories.
|
||
%/:
|
||
# mkdir isn't smart enough to strip a trailing /.
|
||
mkdir $(@:%/=%)
|
||
|
||
# Make sure that object files are not removed
|
||
# when they are intermediates between sources and library members.
|
||
.PRECIOUS: $(addprefix $(objpfx)%,$(object-suffixes))
|
||
|
||
# Make sure that the parent library archive is never removed.
|
||
.PRECIOUS: $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
|
||
|
||
# Use the verbose option of ar and tar when not running silently.
|
||
ifeq "$(findstring s,$(MAKEFLAGS))" "" # if not -s
|
||
verbose := v
|
||
else # -s
|
||
verbose :=
|
||
endif # not -s
|
||
|
||
ARFLAGS := r$(verbose)
|
||
|
||
# This makes all the object files in the parent library archive.
|
||
|
||
.PHONY: lib libobjs lib-noranlib
|
||
lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
|
||
|
||
# Pattern rule for libraries: depend on the __.SYMDEF member updated by ranlib.
|
||
lib%.a: lib%.a($(ar-symtab-name)) ;
|
||
|
||
# For object-suffix $o, the list of objects with that suffix.
|
||
# Makefiles can define `elide-routines.so = foo' to leave foo.so out.
|
||
o-objects = $(patsubst %.o,%$o,$(filter-out $(patsubst %,$(objpfx)%.o,\
|
||
$(elide-routines$o)),\
|
||
$(objects)))
|
||
|
||
libobjs: $(foreach o,$(object-suffixes),\
|
||
$(common-objpfx)$(patsubst %,$(libtype$o),c)(\
|
||
$(notdir $(o-objects))))
|
||
lib-noranlib: libobjs
|
||
others: $(addprefix $(objpfx),$(install-lib))
|
||
|
||
ifndef objects
|
||
|
||
# Create the stamp$o files to keep the parent makefile happy.
|
||
subdir_lib: $(foreach o,$(object-suffixes),$(objpfx)stamp$o-$(subdir))
|
||
$(foreach o,$(object-suffixes),$(objpfx)stamp$o-$(subdir)):
|
||
$(make-target-directory)
|
||
rm -f $@; > $@
|
||
else
|
||
|
||
# Define a pattern rule that will match many targets libc.a(foo.%), for
|
||
# each foo.o in $(objects) (% will just happen always to match `o'). This is
|
||
# the only way to define a rule that updates many targets at once with one
|
||
# sequence of commands.
|
||
define o-iterator-doit
|
||
$(common-objpfx)$(patsubst %,$(libtype$o),c)(\
|
||
$(addsuffix .%,$(filter-out $(elide-routines$o),$(notdir $(objects:.o=))))): \
|
||
$(objpfx)stamp.%-$(subdir) ;
|
||
endef
|
||
object-suffixes-left := $(object-suffixes)
|
||
include $(o-iterator)
|
||
|
||
# The pattern rule tells Make to remake $(objpfx)stamp.%-$(subdir) as
|
||
# the way to update all the foo.% object files in $(objects). Now we
|
||
# define explicit rules to update each $(objpfx)stamp.SUFFIX-$(subdir)
|
||
# timestamp file; these rules (one explicit rule is generated for each
|
||
# object suffix) will update the parent archive with ar. Use a static
|
||
# pattern rule so $* is set to the object type during the commands.
|
||
define o-iterator-doit
|
||
$(objpfx)stamp$o-$(subdir): $(objpfx)stamp%-$(subdir): $(o-objects); $$(do-ar)
|
||
endef
|
||
object-suffixes-left := $(object-suffixes)
|
||
include $(o-iterator)
|
||
define do-ar
|
||
topdir=`cd $(..).; pwd`; \
|
||
$(patsubst %/,cd %;,$(objpfx)) \
|
||
$(SHELL) $$topdir/autolock.sh ${O%-lib}.lck $(AR) cru$(verbose) ${O%-lib} \
|
||
$(patsubst $(objpfx)%,%,$^)
|
||
rm -f $@
|
||
touch $@
|
||
endef
|
||
O%-lib = $(..)$(patsubst %,$(libtype$*),c)
|
||
|
||
endif
|
||
|
||
# Rules to update the $(ar-symtab-name) member with ranlib,
|
||
# one for each object flavor.
|
||
define o-iterator-doit
|
||
$(common-objpfx)$(patsubst %,$(libtype$o),c)($(ar-symtab-name)): \
|
||
$(common-objpfx)$(patsubst %,$(libtype$o),c)(\
|
||
$(patsubst $(objpfx)%,%,$(o-objects))) $(subdirs-stamp-o); \
|
||
$(SHELL) $$(..)./autolock.sh \
|
||
$$(common-objpfx)$$(patsubst %,$$(libtype$o),c).lck \
|
||
$$(RANLIB) $$(common-objpfx)$$(patsubst %,$$(libtype$o),c)
|
||
endef
|
||
ifndef subdir
|
||
subdirs-stamps := $(foreach d,$(subdirs),$(common-objpfx)$d/stamp%-$d)
|
||
subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps))
|
||
$(subdirs-stamps): subdir_lib;
|
||
endif
|
||
object-suffixes-left = $(object-suffixes)
|
||
include $(o-iterator)
|
||
|
||
|
||
# This makes all the object files.
|
||
.PHONY: objects objs
|
||
objects objs: $(foreach o,$(object-suffixes),$(o-objects)) \
|
||
$(addprefix $(objpfx),$(extra-objs))
|
||
|
||
# Canned sequence for building an extra library archive.
|
||
define build-extra-lib
|
||
$(patsubst %/,cd %;,$(objpfx)) \
|
||
$(AR) cru$(verbose) $(@:$(objpfx)%=%) \
|
||
$(patsubst $(objpfx)%,%,$^)
|
||
$(RANLIB) $@
|
||
endef
|
||
|
||
# Installation.
|
||
|
||
# $(install-lib) are installed from the object directory into $(libdir);
|
||
# files in $(install-lib) matching `lib%.a' are ranlib'd after installation
|
||
# unless they also appear in $(non-lib.a). $(install-data) are installed
|
||
# as they are into $(datadir). $(headers) are installed as they are in
|
||
# $(includedir). $(install-bin) and $(install-sbin) are installed from the
|
||
# object directory into $(bindir) and $(sbindir), respectively.
|
||
# $(install-others) are absolute path names of files to install; rules to
|
||
# install them are defined elsewhere.
|
||
|
||
# The simple library name to install libc.a under.
|
||
# This could be defined by a sysdep Makefile.
|
||
ifndef libc-name
|
||
libc-name := c
|
||
endif
|
||
|
||
define do-install
|
||
$(make-target-directory)
|
||
$(INSTALL_DATA) $< $@
|
||
endef
|
||
|
||
# Make the target directory if it doesn't exist, using the `mkinstalldirs'
|
||
# script that does `mkdir -p' even if `mkdir' doesn't support that flag.
|
||
define make-target-directory
|
||
$(addprefix $(..)./mkinstalldirs ,\
|
||
$(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%)))
|
||
endef
|
||
|
||
# Any directory (parent or subdir) that has any object files to build
|
||
# should install libc.a; this way "make install" in a subdir is guaranteed
|
||
# to install everything it changes.
|
||
ifdef objects
|
||
installed-libcs := $(foreach o,$(object-suffixes),\
|
||
$(libdir)/$(patsubst %,$(libtype$o),\
|
||
$(libprefix)$(libc-name)))
|
||
installed-libcs := $(filter-out %_pic.a,$(installed-libcs))
|
||
install: $(installed-libcs)
|
||
$(installed-libcs): $(libdir)/lib$(libprefix)%: lib
|
||
$(make-target-directory)
|
||
$(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@
|
||
# Running ranlib after installing makes the __.SYMDEF time stamp up to
|
||
# date, which avoids messages from some linkers.
|
||
$(RANLIB) $@
|
||
endif
|
||
|
||
define do-install-program
|
||
$(make-target-directory)
|
||
$(INSTALL_PROGRAM) $< $@.new
|
||
mv -f $@.new $@
|
||
endef
|
||
|
||
install-lib.so := $(filter %.so,$(install-lib:%_pic.a=%.so))
|
||
install-lib := $(filter-out %.so %_pic.a,$(install-lib))
|
||
ifeq (yes,$(build-shared))
|
||
|
||
install-lib-nosubdir: $(install-lib.so:%=$(libdir)/%)
|
||
|
||
# Find which .so's have versions.
|
||
versioned := $(strip $(foreach so,$(install-lib.so),\
|
||
$(patsubst %,$(so),$($(so)-version))))
|
||
|
||
# Install all the unversioned shared libraries.
|
||
$(addprefix $(slibdir)/,$(filter-out $(versioned),$(install-lib.so))): \
|
||
$(slibdir)/%.so: $(objpfx)%.so; $(do-install-program)
|
||
|
||
ifneq ($(findstring -s,$(LN_S)),)
|
||
define make-link
|
||
rm -f $@.new; \
|
||
if test '$(@D)' = '$(<D)'; then \
|
||
(cd $(@D); $(LN_S) $(<F) $(@F).new); \
|
||
else \
|
||
$(SHELL) $(..)rellns-sh $< $@.new; \
|
||
fi; \
|
||
mv -f $@.new $@
|
||
endef
|
||
else
|
||
# If we have no symbolic links don't bother with rellns-sh.
|
||
define make-link
|
||
rm -f $@.new; \
|
||
$(LN_S) $< $@.new; \
|
||
mv -f $@.new $@
|
||
endef
|
||
endif
|
||
|
||
ifdef libc.so-version
|
||
# For a library specified to be version N, install three files:
|
||
# libc.so -> libc.so.N (e.g. libc.so.6)
|
||
# libc.so.6 -> libc-VERSION.so (e.g. libc-1.10.so)
|
||
|
||
$(slibdir)/libc.so$(libc.so-version): $(slibdir)/libc-$(version).so
|
||
$(make-link)
|
||
$(slibdir)/libc-$(version).so: $(common-objpfx)libc.so; $(do-install-program)
|
||
install: $(slibdir)/libc.so$(libc.so-version)
|
||
|
||
ifndef subdir
|
||
# What we install as libc.so for programs to link against is in fact a
|
||
# link script. It contains references for the various libraries we need.
|
||
# The libc.so object is not complete since some functions are only defined
|
||
# in libc.a and the dynamic linker is an etra object.
|
||
install: $(libdir)/libc.so
|
||
$(libdir)/libc.so: $(common-objpfx)libc.so$(libc.so-version) \
|
||
$(elfobjdir)/$(rtld-installed-name) \
|
||
$(libdir)/lib$(libc-name).a
|
||
(echo '/* GNU ld script';\
|
||
echo ' Use the shared library, but some functions are only in';\
|
||
echo ' the static library, so try that secondarily.'; \
|
||
echo ' The dynamic linker defines some functions used by $(<F),';\
|
||
echo ' but ld uses definitions from libc.a before examining the';\
|
||
echo ' dependencies of $(<F) to find $(rtld-installed-name). */';\
|
||
echo 'GROUP ( $(^F) )') > $@.new
|
||
mv -f $@.new $@
|
||
|
||
endif
|
||
|
||
else
|
||
install: $(slibdir)/libc.so
|
||
$(slibdir)/libc.so: $(common-objpfx)libc.so; $(do-install-program)
|
||
endif
|
||
|
||
|
||
ifneq (,$(versioned))
|
||
# Produce three sets of rules as above for all the smaller versioned libraries.
|
||
|
||
define o-iterator-doit
|
||
$(libdir)/$o: $(slibdir)/$o$($o-version); $$(make-link)
|
||
endef
|
||
object-suffixes-left := $(versioned)
|
||
include $(o-iterator)
|
||
|
||
# Make symlinks in the build directory, because the versioned names might
|
||
# be referenced by a DT_NEEDED in another library.
|
||
define o-iterator-doit
|
||
$(objpfx)$o$($o-version): $(objpfx)$o; $$(make-link)
|
||
endef
|
||
object-suffixes-left := $(versioned)
|
||
include $(o-iterator)
|
||
|
||
|
||
ifeq (,$($(subdir)-version))
|
||
define o-iterator-doit
|
||
$(slibdir)/$o$($o-version): $(slibdir)/$(o:.so=)-$(version).so; $$(make-link)
|
||
endef
|
||
object-suffixes-left := $(versioned)
|
||
include $(o-iterator)
|
||
|
||
define o-iterator-doit
|
||
$(slibdir)/$(o:.so=)-$(version).so: $(objpfx)$o; $$(do-install-program)
|
||
endef
|
||
object-suffixes-left := $(versioned)
|
||
include $(o-iterator)
|
||
else
|
||
define o-iterator-doit
|
||
$(slibdir)/$o$($o-version): $(slibdir)/$(o:.so=)-$($(subdir)-version).so;
|
||
$$(make-link)
|
||
endef
|
||
object-suffixes-left := $(versioned)
|
||
include $(o-iterator)
|
||
|
||
define o-iterator-doit
|
||
$(slibdir)/$(o:.so=)-$($(subdir)-version).so: $(objpfx)$o;
|
||
$$(do-install-program)
|
||
endef
|
||
object-suffixes-left := $(versioned)
|
||
include $(o-iterator)
|
||
endif
|
||
endif
|
||
|
||
define do-install-so
|
||
$(do-install-program)
|
||
$(patsubst %,ln -s -f $(@F) $(@D)/$(patsubst %$*.so,%,$(<F))$(libprefix)$*.so,\
|
||
$(filter-out %.so,$@))
|
||
endef
|
||
|
||
so-versions := $(sort $(foreach so,$(install-lib.so),.so$($(so)-version)))
|
||
$(foreach v,$(so-versions),\
|
||
$(slibdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so
|
||
$(do-install-so)
|
||
$(foreach v,$(so-versions),\
|
||
$(slibdir)/$(libprefix)%$v): $(common-objpfx)%.so
|
||
$(do-install-so)
|
||
endif
|
||
|
||
ifdef install-bin
|
||
$(addprefix $(bindir)/,$(install-bin)): $(bindir)/%: $(objpfx)%
|
||
$(do-install-program)
|
||
endif
|
||
ifdef install-sbin
|
||
$(addprefix $(sbindir)/,$(install-sbin)): $(sbindir)/%: $(objpfx)%
|
||
$(do-install-program)
|
||
endif
|
||
ifdef install-lib
|
||
install-lib.a := $(filter lib%.a,$(install-lib))
|
||
install-lib-non.a := $(filter-out lib%.a,$(install-lib))
|
||
ifdef install-lib-non.a
|
||
$(addprefix $(libdir)/$(libprefix),$(install-lib-non.a)): \
|
||
$(libdir)/$(libprefix)%: $(objpfx)%
|
||
$(do-install)
|
||
endif
|
||
ifdef install-lib.a
|
||
$(install-lib.a:lib%.a=$(libdir)/lib$(libprefix)%.a): \
|
||
$(libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a
|
||
$(do-install)
|
||
$(patsubst %,$(RANLIB) $@,$(filter-out $(non-lib.a),$(<F)))
|
||
endif
|
||
endif
|
||
ifdef install-data
|
||
$(addprefix $(datadir)/,$(install-data)): $(datadir)/%: %;$(do-install)
|
||
endif
|
||
headers := $(strip $(headers))
|
||
ifdef headers
|
||
$(addprefix $(includedir)/,$(headers)): \
|
||
$(includedir)/%: %;$(do-install)
|
||
endif # headers
|
||
|
||
.PHONY: install-bin-nosubdir install-sbin-nosubdir install-lib-nosubdir \
|
||
install-data-nosubdir install-headers-nosubdir
|
||
install-bin-nosubdir: $(addprefix $(bindir)/,$(install-bin))
|
||
install-sbin-nosubdir: $(addprefix $(sbindir)/,$(install-sbin))
|
||
install-lib-nosubdir: $(addprefix $(libdir)/,\
|
||
$(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \
|
||
$(addprefix $(libprefix),$(install-lib-non.a)))
|
||
install-data-nosubdir: $(addprefix $(datadir)/,$(install-data))
|
||
install-headers-nosubdir: $(addprefix $(includedir)/,$(headers))
|
||
install-others-nosubdir: $(install-others)
|
||
|
||
# We need all the `-nosubdir' targets so that `install' in the parent
|
||
# doesn't depend on several things which each iterate over the subdirs.
|
||
# This rule makes `install-FOO' always use `install-FOO-nosubdir' as a
|
||
# subroutine. Then in the parent `install-FOO' also causes subdir makes.
|
||
install-%:: install-%-nosubdir ;
|
||
|
||
.PHONY: install install-no-libc.a-nosubdir
|
||
install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
|
||
install-bin-nosubdir install-lib-nosubdir \
|
||
install-others-nosubdir install-sbin-nosubdir
|
||
install: install-no-libc.a-nosubdir
|
||
|
||
# Command to compile $< in $(objdir) using the native libraries.
|
||
define native-compile
|
||
cwd=`pwd`; cd $(@D); $(BUILD_CC) $(BUILD_CFLAGS) \
|
||
$(addprefix $$cwd/,$^) -o $(@F)
|
||
endef
|
||
|
||
# Command to compile $< in $(common-objdir) using the native libraries.
|
||
# We must cd to $(objdir) anyway so that $(..)config.h is valid.
|
||
define common-objdir-compile
|
||
cd $(objpfx).; \
|
||
$(BUILD_CC) $(BUILD_CFLAGS) $(<:$(common-objpfx)%=$(..)%) -o $(..)$(@F)
|
||
endef
|
||
|
||
# We always want to use configuration definitions.
|
||
BUILD_CFLAGS = -include $(..)config.h
|
||
|
||
# Support the GNU standard name for this target.
|
||
.PHONY: check
|
||
check: tests
|
||
|
||
.PHONY: TAGS
|
||
TAGS: $(common-objpfx)distinfo-$(subdir) $(..)MakeTAGS
|
||
$(MAKE) $(addprefix -f ,$^) $@
|
||
|
||
$(..)po/%.pot: $(common-objpfx)distinfo-$(subdir) $(..)MakeTAGS FORCE
|
||
$(MAKE) $(addprefix -f ,$(filter-out FORCE,$^)) $@
|
||
FORCE:
|
||
|
||
|
||
.PHONY: echo-headers
|
||
echo-headers:
|
||
@echo $(headers)
|
||
|
||
|
||
# Common cleaning targets.
|
||
|
||
.PHONY: common-mostlyclean common-clean mostlyclean clean
|
||
clean: common-clean
|
||
mostlyclean: common-mostlyclean
|
||
|
||
# Remove the object files.
|
||
common-mostlyclean:
|
||
-rm -f $(addprefix $(objpfx),$(tests) $(others) \
|
||
$(addsuffix .o,$(tests) $(others)) \
|
||
$(addsuffix .out,$(tests)))
|
||
-rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib))
|
||
-rm -f core $(common-objpfx)stub-$(subdir)
|
||
$(rmobjs)
|
||
define rmobjs
|
||
$(foreach o,$(object-suffixes),
|
||
-rm -f $(addprefix $(objpfx),stamp$o-$(subdir)) $(o-objects))
|
||
endef
|
||
|
||
# Also remove the dependencies and generated source files.
|
||
common-clean: common-mostlyclean
|
||
-rm -f $(addprefix $(objpfx),$(generated)) $(+depfiles)
|
||
-rm -f $(addprefix $(common-objpfx),$(common-generated))
|
||
-rm -f $(common-objpfx)distinfo-$(subdir)
|
||
|
||
# Produce a file `stub-$(subdir)' which contains `#define __stub_FUNCTION'
|
||
# for each function which is a stub. We grovel over all the .d files
|
||
# looking for references to source files in sysdeps/stub. Then we grovel
|
||
# over each referenced source file to see what stub function it defines.
|
||
|
||
.PHONY: stubs # The parent Makefile calls this target.
|
||
stubs: $(common-objpfx)stub-$(subdir)
|
||
s = $(sysdep_dir)/stub
|
||
$(common-objpfx)stub-$(subdir): $(+depfiles)
|
||
# Use /dev/null since `...` might expand to empty.
|
||
(s=`cd $s; /bin/pwd`; \
|
||
$(patsubst %/,cd %;,$(objpfx)) \
|
||
sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \
|
||
`sed -n 's@^.*$s/\([a-z0-9_-]*\.c\).*$$@'"$$s"/'\1@p' \
|
||
$(patsubst $(objpfx)%,%,$^) /dev/null` \
|
||
/dev/null) > $@T
|
||
mv -f $@T $@
|
||
|
||
# Make the distribution tar file.
|
||
|
||
.PHONY: dist
|
||
dist: $(common-objpfx)distinfo-$(subdir) $(..)Make-dist
|
||
$(MAKE) -f $< -f $(word 2,$^) $(Make-dist-args)
|
||
|
||
# Avoid depending on source files found in sysdeps dirs,
|
||
# because the references affect implicit rule selection.
|
||
dist: $(filter-out %.c %.S %.s,$(distribute))
|
||
|
||
# We used to simply export all these variables, but that frequently made the
|
||
# environment get too large. Instead, we write all the information into
|
||
# a generated makefile fragment `distinfo', and then include it with -f in
|
||
# the sub-make that makes the distribution (above).
|
||
$(common-objpfx)distinfo-$(subdir): Makefile $(..)Makerules
|
||
$(distinfo-vars)
|
||
mv -f $@.new $@
|
||
.PHONY: subdir_distinfo distinfo
|
||
subdir_distinfo: distinfo
|
||
distinfo: $(common-objpfx)distinfo-$(subdir)
|
||
|
||
define distinfo-vars
|
||
rm -f $@.new
|
||
echo > $@.new 'subdir := $(subdir)'
|
||
$(foreach var,subdir-dirs sources elided-routines sysdep_routines \
|
||
headers sysdep_headers distribute dont_distribute generated \
|
||
others tests extra-libs $(extra-libs:%=%-routines) \
|
||
versioned \
|
||
$(addprefix install-,lib lib.so data bin sbin others),
|
||
echo >> $@.new '$(subdir)-$(var) := $($(var))'
|
||
echo >> $@.new '$(var) = $$($(subdir)-$(var))')
|
||
endef
|
||
|
||
ifneq (,$(strip $(gpl2lgpl)))
|
||
ifneq (,$(wildcard $(..)gpl2lgpl.sed))
|
||
# Snarf from the master source and frob the copying notice.
|
||
$(gpl2lgpl): %: $(..)gpl2lgpl.sed /home/gd/gnu/lib/%
|
||
sed -f $^ > $@-tmp
|
||
# So I don't edit them by mistake.
|
||
chmod a-w $@-tmp
|
||
mv -f $@-tmp $@
|
||
test ! -d CVS || cvs commit -m'Updated from $^' $@
|
||
endif
|
||
endif
|