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9cd4747089
The current scheme to identify which module a translation unit is built in depends on defining multiple macros IS_IN_* and also defining NOT_IN_libc if we're building a non-libc module. In addition, there is an IN_LIB macro that does effectively the same thing, but for different modules (notably the systemtap probes). This macro scheme unifies both ideas to use just one macro IN_MODULE and assign it a value depending on the module it is being built into. If the module is not defined, it defaults to MODULE_libc. Patches that follow will replace uses of IS_IN_* variables with the IS_IN() macro. libc-symbols.h has been converted already to give an example of how such a transition will look. Verified that there are no relevant binary changes. One source change that will crop up repeatedly is that of nscd_stat, since it uses the build timestamp as a constant in its logic. * Makeconfig (in-module): Get value of libof set for the translation unit. (CPPFLAGS): Use $(in-module). * Makerules: Don't suffix routine names for nonlib. * include/libc-modules.h: New file. * include/libc-symbols.h: Include libc-modules.h (IS_IN): New macro to replace IS_IN_* macros. * elf/Makefile: Set libof-* for each routine. * elf/rtld-Rules: Likewise. * extra-modules.mk: Likewise. * iconv/Makefile: Likewise. * iconvdata/Makefile: Likewise. * locale/Makefile: Likewise. * malloc/Makefile: Likewise. * nss/Makefile: Likewise. * sysdeps/gnu/Makefile: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile: Likewise. * sysdeps/unix/sysv/linux/Makefile: Likewise. * sysdeps/s390/s390-64/Makefile: Likewise. * nscd/Makefile: Set libof-* for each routine. Set CFLAGS and CPPFLAGS for nscd instead of nonlib.
117 lines
3.8 KiB
Makefile
117 lines
3.8 KiB
Makefile
# Copyright (C) 1996-2014 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 Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the 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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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <http://www.gnu.org/licenses/>.
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#
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# Makefile for name service switch.
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#
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subdir := nss
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include ../Makeconfig
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headers := nss.h
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# This is the trivial part which goes into libc itself.
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routines = nsswitch getnssent getnssent_r digits_dots \
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$(addsuffix -lookup,$(databases))
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# These are the databases that go through nss dispatch.
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# Caution: if you add a database here, you must add its real name
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# in databases.def, too.
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databases = proto service hosts network grp pwd rpc ethers \
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spwd netgrp key alias sgrp
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others := getent makedb
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install-bin := getent makedb
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makedb-modules = xmalloc hash-string
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extra-objs += $(makedb-modules:=.o)
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tests = test-netdb tst-nss-test1 test-digits-dots
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xtests = bug-erange
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# Specify rules for the nss_* modules. We have some services.
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services := files db
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extra-libs = $(services:%=libnss_%)
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# These libraries will be built in the `others' pass rather than
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# the `lib' pass, because they depend on libc.so being built already.
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extra-libs-others = $(extra-libs)
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# The sources are found in the appropriate subdir.
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subdir-dirs = $(services:%=nss_%)
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vpath %.c $(subdir-dirs) ../locale/programs ../intl
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libnss_files-routines := $(addprefix files-,$(databases)) \
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files-initgroups files-have_o_cloexec files-init
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libnss_db-dbs := $(addprefix db-,\
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$(filter-out hosts network key alias,\
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$(databases))) \
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db-initgroups
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libnss_db-routines := $(libnss_db-dbs) db-open db-init hash-string
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generated += $(filter-out db-alias.c db-netgrp.c, \
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$(addsuffix .c,$(libnss_db-dbs)))
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install-others += $(inst_vardbdir)/Makefile
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# Build static module into libc if requested
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libnss_files-inhibit-o = $(filter-out .os,$(object-suffixes))
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libnss_db-inhibit-o = $(filter-out .os,$(object-suffixes))
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ifeq ($(build-static-nss),yes)
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routines += $(libnss_files-routines)
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static-only-routines += $(libnss_files-routines)
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tests-static = tst-nss-static
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tests += $(tests-static)
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endif
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include ../Rules
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ifeq (yes,$(have-selinux))
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LDLIBS-makedb := -lselinux
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endif
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libnss-libc = $(common-objpfx)linkobj/libc.so
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# Target-specific variable setting to link objects using deprecated
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# RPC interfaces with the version of libc.so that makes them available
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# for new links:
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$(services:%=$(objpfx)libnss_%.so): libc-for-link = $(libnss-libc)
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$(objpfx)libnss_db.so: $(objpfx)libnss_files.so
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$(libnss_db-dbs:%=$(objpfx)%.c): $(objpfx)db-%.c: nss_files/files-%.c
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@rm -f $@.new
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(echo '#define EXTERN_PARSER';\
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echo '#define GENERIC "../nss_db/db-XXX.c"';\
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echo '#include "$<"') > $@.new
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mv -f $@.new $@
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$(objpfx)makedb: $(makedb-modules:%=$(objpfx)%.o)
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$(inst_vardbdir)/Makefile: db-Makefile $(+force)
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$(do-install)
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libof-nss_test1 = extramodules
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CPPFLAGS-nss_test1 = -DNOT_IN_libc=1
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$(objpfx)/libnss_test1.so: $(objpfx)nss_test1.os $(link-libc-deps)
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$(build-module)
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ifdef libnss_test1.so-version
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$(objpfx)/libnss_test1.so$(libnss_test1.so-version): $(objpfx)/libnss_test1.so
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$(make-link)
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endif
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$(objpfx)tst-nss-test1.out: $(objpfx)/libnss_test1.so$(libnss_test1.so-version)
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