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9aa4965cdf
This patch makes the glibc build generate an additional header ldbl-compat-choose.h that defines LONG_DOUBLE_COMPAT_CHOOSE_* macros for each libc and libm symbol, which select one or the other of their arguments based on whether the symbol was added before a change to long double != double. The effect of this is that it is then possible to define a macro maybe_long_double_symbol that automatically acts as either long_double_symbol or weak_alias depending on when the symbol being defined was added. This can be used when building long double functions from type-generic templates. Thus, with this patch ldbl-opt no longer needs special long double implementations of each new libm function added using such a template, and the existing such implementations are removed. This is a step towards being able more generally to use common macros to create all the aliases needed for a libm function, so reducing the amount of special-case code needed in ldbl-opt and ldbl-64-128, and facilitating subsequently adding *f32 / *f64 / *f128 / *f32x / *f64x aliases to existing functions (where the set of aliases that a function should have may depend on the architecture in various ways). Tested with build-many-glibcs.py. Except for on powerpc64le-linux-gnu, installed stripped shared libraries are unchanged by the patch. powerpc64le-linux-gnu is the unique configuration which used ldbl-opt from the start rather than adding a new long double choice after originally only having had long double = double. The effect of the patch there is that various cases that previously used long_double_symbol unconditionally now use weak_alias instead, so .os files contain e.g. a symbol cabsl instead of cabsl@@GLIBC_2.17. The final dynamic symbols and versions in the resulting shared libraries are unchanged (ABI tests pass), as is the disassembly of the shared libraries, but the differences in the .os files still result in different .gnu_hash contents in libm.so; the differences are of no significance and logically using weak_alias is what's most appropriate in those cases. * scripts/versions.awk: Generate ldbl-compat-choose.h. * sysdeps/ieee754/ldbl-opt/math-type-macros-ldouble.h: Include <ldbl-compat-choose.h>. (maybe_long_double_symbol): New macro. [!declare_mgen_alias] (declare_mgen_alias): Use maybe_long_double_symbol. * sysdeps/ieee754/ldbl-opt/s_canonicalizel.c: Remove. * sysdeps/ieee754/ldbl-opt/s_fmaxmagl.c: Likewise. * sysdeps/ieee754/ldbl-opt/s_fminmagl.c: Likewise. * sysdeps/ieee754/ldbl-opt/s_nextdownl.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_llogbl.c: Likewise. * Makerules [$(build-shared) = yes && !avoid-generated] (before-compile): Add $(common-objpfx)ldbl-compat-choose.h. [$(build-shared) = yes && !avoid-generated] ($(common-objpfx)ldbl-compat-choose.h): New target.
1650 lines
57 KiB
Plaintext
1650 lines
57 KiB
Plaintext
# Copyright (C) 1991-2017 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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# Common rules for making the GNU C library. This file is included
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# by the top-level Makefile and by all subdirectory makefiles
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# (through Rules).
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#
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ifneq (,)
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This makefile requires GNU Make.
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endif
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REQUIRED_MAKE_VERSION = 3.74
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REAL_MAKE_VERSION = $(firstword $(MAKE_VERSION))
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ifneq ($(REQUIRED_MAKE_VERSION), \
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$(firstword $(sort $(REAL_MAKE_VERSION) $(REQUIRED_MAKE_VERSION))))
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Wrong GNU Make version. See above for the version needed.
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endif
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ifdef subdir
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.. := ../
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endif # subdir
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# If `sources' was defined by the parent makefile, undefine it so
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# we will later get it from wildcard search in this directory.
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ifneq "$(findstring env,$(origin sources))" ""
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sources :=
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endif
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oPATH := $(PATH)
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PATH := this definition should take precedence over $(oPATH)
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ifeq ($(PATH),$(oPATH))
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You must not use the -e flag when building the GNU C library.
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else
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PATH := $(oPATH)
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endif
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ifndef +included-Makeconfig
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include $(..)Makeconfig
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endif
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# This variable is used in ``include $(o-iterator)'' after defining
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# $(o-iterator-doit) to produce some desired rule using $o for the object
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# suffix, and setting $(object-suffixes-left) to $(object-suffixes); a copy
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# is produced for each object suffix in use.
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o-iterator = $(patsubst %,$(..)o-iterator.mk,$(object-suffixes-left))
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# Include any system-specific makefiles.
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# This is here so things in sysdep Makefiles can easily depend on foo.h as
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# appropriate and not worry about where foo.h comes from, which may be
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# system dependent and not known by that Makefile.
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vpath %.h $(subst $(empty) ,:,$(strip $(common-objpfx) $(objpfx) \
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$(+sysdep_dirs) $(..)))
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# The same is true for RPC source files.
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vpath %.x $(subst $(empty) ,:,$(strip $(common-objpfx) $(objpfx) \
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$(+sysdep_dirs) $(..)))
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# Some sysdep makefiles use this to distinguish being included here from
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# being included individually by a subdir makefile (hurd/Makefile needs this).
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in-Makerules := yes
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sysdep-makefiles := $(wildcard $(sysdirs:=/Makefile))
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ifneq (,$(sysdep-makefiles))
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include $(sysdep-makefiles)
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endif
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# Reorder before-compile so that mach things come first, and hurd things
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# second, before all else. The mach and hurd subdirectories have many
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# generated header files which the much of rest of the library depends on,
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# so it is best to build them first (and mach before hurd, at that).
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before-compile := $(filter $(common-objpfx)mach% $(common-objpfx)hurd%,\
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$(before-compile)) \
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$(filter-out $(common-objpfx)mach% $(common-objpfx)hurd%,\
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$(before-compile))
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# Even before that, we need abi-versions.h which is generated right here.
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ifeq ($(build-shared),yes)
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ifndef avoid-generated
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before-compile := $(common-objpfx)abi-versions.h $(before-compile)
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$(common-objpfx)abi-versions.h: $(..)scripts/abi-versions.awk \
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$(common-objpfx)Versions.all
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LC_ALL=C $(AWK) -f $^ > $@T
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mv -f $@T $@
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$(common-objpfx)%.latest: $(common-objpfx)abi-versions.h
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sed -n '/ VERSION_$*_/{s/^.*_\([A-Z0-9_]*\).*$$/\1/;h;};$${g;p;}' \
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$(common-objpfx)abi-versions.h > $@T
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mv -f $@T $@
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# first-versions.h and ldbl-compat-choose.h provide macros used in
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# various symbol versioning macro calls.
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before-compile := $(common-objpfx)first-versions.h \
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$(common-objpfx)ldbl-compat-choose.h $(before-compile)
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$(common-objpfx)first-versions.h: $(common-objpfx)versions.stmp
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$(common-objpfx)ldbl-compat-choose.h: $(common-objpfx)versions.stmp
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endif # avoid-generated
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endif # $(build-shared) = yes
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ifndef avoid-generated
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ifneq (,$(CXX))
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# If C++ headers <cstdlib> or <cmath> are used, GCC 6 will include
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# /usr/include/stdlib.h or /usr/include/math.h from "#include_next"
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# (instead of stdlib/stdlib.h or math/math.h in the glibc source
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# directory), and this turns up as a make dependency. An implicit
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# rule will kick in and make will try to install stdlib/stdlib.h or
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# math/math.h as /usr/include/stdlib.h or /usr/include/math.h because
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# the target is out of date. We make a copy of <cstdlib> and <cmath>
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# in the glibc build directory so that stdlib/stdlib.h and math/math.h
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# will be used instead of /usr/include/stdlib.h and /usr/include/math.h.
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before-compile := $(common-objpfx)cstdlib $(common-objpfx)cmath \
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$(before-compile)
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$(common-objpfx)cstdlib: $(c++-cstdlib-header)
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$(INSTALL_DATA) $< $@T
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$(move-if-change) $@T $@
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$(common-objpfx)cmath: $(c++-cmath-header)
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$(INSTALL_DATA) $< $@T
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$(move-if-change) $@T $@
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endif
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before-compile := $(common-objpfx)libc-abis.h $(before-compile)
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$(common-objpfx)libc-abis.h: $(common-objpfx)libc-abis.stamp; @:
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$(common-objpfx)libc-abis.stamp: $(..)scripts/gen-libc-abis \
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$(firstword $(wildcard $(sysdirs:=/libc-abis)) \
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$(..)libc-abis) \
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$(..)Makerules
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$(SHELL) $< \
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$(base-machine)-$(config-vendor)-$(config-os) \
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< $(word 2,$^) > $(@:.stamp=.h)T
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$(move-if-change) $(@:.stamp=.h)T $(@:.stamp=.h)
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touch $@
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common-generated += $(common-objpfx)libc-abis.h
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endif # avoid-generated
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ifeq (yes,$(build-shared))
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$(common-objpfx)runtime-linker.h: $(common-objpfx)runtime-linker.stamp; @:
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$(common-objpfx)runtime-linker.stamp: $(common-objpfx)config.make
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$(make-target-directory)
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echo '#define RUNTIME_LINKER "$(rtlddir)/$(rtld-installed-name)"' \
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> ${@:stamp=T}
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$(move-if-change) ${@:stamp=T} ${@:stamp=h}
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touch $@
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endif
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# Make sure the subdirectory for object files gets created.
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ifdef objpfx
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ifeq (,$(wildcard $(objpfx).))
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before-compile += $(objpfx).
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$(objpfx).:
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$(make-target-directory)
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endif
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endif
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# Remove existing files from `before-compile'. Things are added there when
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# they must exist for dependency generation to work right, but once they
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# exist there is no further need for every single file to depend on them,
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# and those gratuitous dependencies result in many gratuitous
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# recompilations.
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before-compile := $(filter-out $(wildcard $(before-compile)),$(before-compile))
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# Don't let any before-compile file be an intermediate and get removed.
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ifdef before-compile
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$(before-compile):
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endif
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# We don't want $(common-objpfx) files to depend on miscellaneous stuff
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# in subdirs.
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ifdef subdir
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common-before-compile := $(filter-out $(objpfx)%,$(before-compile))
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else
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common-before-compile = $(before-compile)
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endif
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ifndef subdir
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# If a makefile needs to do something conditional on something that
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# can only be figured out from headers, write a FOO.make.c input
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# file that uses cpp contructs and contains @@@ LINE @@@ for each LINE
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# to emit in the generated makefile, and use -include $(common-objpfx)FOO.make.
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#
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# We only generate these in the top-level makefile, to avoid any weirdness
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# from subdir-specific makefile tweaks creeping in on an update.
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$(common-objpfx)%.make: $(..)%.make.c $(..)Makerules $(common-before-compile)
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rm -f $@T $@.dT
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(echo '# Generated from $*.make.c by Makerules.'; \
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$(CC) $(CFLAGS) $(CPPFLAGS) -E -DASSEMBLER $< \
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-MD -MP -MT '$$(common-objpfx)$*.make' -MF $@.dT \
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| sed -n '/@@@/{s/@@@[ ]*\(.*\)@@@/\1/;s/[ ]*$$//p;}'; \
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echo 'common-generated += $(@F)'; \
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sed $(sed-remove-objpfx) $(sed-remove-dotdot) $@.dT; \
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rm -f $@.dT) > $@T
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mv -f $@T $@
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endif
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ifdef subdir
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sed-remove-dotdot := -e 's@ *\.\.\/\([^ \]*\)@ $$(..)\1@g' \
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-e 's@^\.\.\/\([^ \]*\)@$$(..)\1@g'
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else
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sed-remove-dotdot := -e 's@ *\([^ \/$$][^ \]*\)@ $$(..)\1@g' \
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-e 's@^\([^ \/$$][^ \]*\)@$$(..)\1@g'
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endif
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ifdef gen-py-const-headers
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# We'll use a static pattern rule to match .pysym files with their
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# corresponding generated .py files.
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# The generated .py files go in the submodule's dir in the glibc build dir.
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py-const-files := $(patsubst %.pysym,%.py,$(gen-py-const-headers))
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py-const-dir := $(objpfx)
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py-const := $(addprefix $(py-const-dir),$(py-const-files))
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py-const-script := $(..)scripts/gen-py-const.awk
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# This is a hack we use to generate .py files with constants for Python
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# pretty printers. It works the same way as gen-as-const.
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# See scripts/gen-py-const.awk for details on how the awk | gcc mechanism
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# works.
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#
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# $@.tmp and $@.tmp2 are temporary files we use to store the partial contents
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# of the target file. We do this instead of just writing on $@ because, if the
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# build process terminates prematurely, re-running Make wouldn't run this rule
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# since Make would see that the target file already exists (despite it being
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# incomplete).
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#
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# The sed line replaces "@name@SOME_NAME@value@SOME_VALUE@" strings from the
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# output of 'gcc -S' with "SOME_NAME = SOME_VALUE" strings.
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# The '-n' option, combined with the '/p' command, makes sed output only the
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# modified lines instead of the whole input file. The output is redirected
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# to a .py file; we'll import it in the pretty printers file to read
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# the constants generated by gen-py-const.awk.
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# The regex has two capturing groups, for SOME_NAME and SOME_VALUE
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# respectively. Notice SOME_VALUE may be prepended by a special character,
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# depending on the assembly syntax (e.g. immediates are prefixed by a '$'
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# in AT&T x86, and by a '#' in ARM). We discard it using a complemented set
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# before the second capturing group.
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$(py-const): $(py-const-dir)%.py: %.pysym $(py-const-script) \
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$(common-before-compile)
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$(make-target-directory)
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$(AWK) -f $(py-const-script) $< \
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| $(CC) -S -o $@.tmp $(CFLAGS) $(CPPFLAGS) -x c -
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echo '# GENERATED FILE\n' > $@.tmp2
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echo '# Constant definitions for pretty printers.' >> $@.tmp2
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echo '# See gen-py-const.awk for details.\n' >> $@.tmp2
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sed -n -r 's/^.*@name@([^@]+)@value@[^[:xdigit:]Xx-]*([[:xdigit:]Xx-]+)@.*/\1 = \2/p' \
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$@.tmp >> $@.tmp2
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mv -f $@.tmp2 $@
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rm -f $@.tmp
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generated += $(py-const)
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endif # gen-py-const-headers
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ifdef gen-as-const-headers
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# Generating headers for assembly constants.
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# We need this defined early to get into before-compile before
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# it's used in sysd-rules, below.
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$(common-objpfx)%.h $(common-objpfx)%.h.d: $(..)scripts/gen-as-const.awk \
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%.sym $(common-before-compile)
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$(AWK) -f $< $(filter %.sym,$^) \
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| $(CC) -S -o $(@:.h.d=.h)T3 $(CFLAGS) $(CPPFLAGS) -x c - \
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-MD -MP -MF $(@:.h=.h.d)T -MT '$(@:.h=.h.d) $(@:.h.d=.h)'
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sed -n 's/^.*@@@name@@@\([^@]*\)@@@value@@@[^0-9Xxa-fA-F-]*\([0-9Xxa-fA-F-][0-9Xxa-fA-F-]*\).*@@@end@@@.*$$/#define \1 \2/p' \
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$(@:.h.d=.h)T3 > $(@:.h.d=.h)T
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rm -f $(@:.h.d=.h)T3
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sed $(sed-remove-objpfx) $(sed-remove-dotdot) \
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$(@:.h=.h.d)T > $(@:.h=.h.d)T2
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rm -f $(@:.h=.h.d)T
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mv -f $(@:.h=.h.d)T2 $(@:.h=.h.d)
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mv -f $(@:.h.d=.h)T $(@:.h.d=.h)
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vpath %.sym $(sysdirs)
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before-compile += $(gen-as-const-headers:%.sym=$(common-objpfx)%.h)
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tests-internal += $(gen-as-const-headers:%.sym=test-as-const-%)
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generated += $(gen-as-const-headers:%.sym=test-as-const-%.c)
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$(objpfx)test-as-const-%.c: $(..)scripts/gen-as-const.awk $(..)Makerules \
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%.sym $(common-objpfx)%.h
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($(AWK) '{ sub(/^/, "asconst_", $$2); print; }' $(filter %.h,$^); \
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$(AWK) -v test=1 -f $< $(filter %.sym,$^); \
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echo '#include "$(..)test-skeleton.c"') > $@T
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mv -f $@T $@
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endif
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ifeq (yes,$(build-shared))
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# Generate the header containing the names of all shared libraries.
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# We use a stamp file to avoid unnecessary recompilations.
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before-compile += $(common-objpfx)gnu/lib-names.h
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ifeq ($(soversions.mk-done),t)
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ifndef abi-variants
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lib-names-h-abi = gnu/lib-names.h
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lib-names-stmp-abi = gnu/lib-names.stmp
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else
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lib-names-h-abi = gnu/lib-names-$(default-abi).h
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lib-names-stmp-abi = gnu/lib-names-$(default-abi).stmp
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before-compile += $(common-objpfx)$(lib-names-h-abi)
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common-generated += gnu/lib-names.h
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install-others-nosubdir: $(inst_includedir)/$(lib-names-h-abi)
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$(common-objpfx)gnu/lib-names.h:
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$(make-target-directory)
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{ \
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echo '/* This file is automatically generated.';\
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echo ' It defines macros to allow user program to find the shared'; \
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echo ' library files which come as part of GNU libc. */'; \
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echo '#ifndef __GNU_LIB_NAMES_H'; \
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echo '#define __GNU_LIB_NAMES_H 1'; \
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echo ''; \
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$(if $(abi-includes), \
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$(foreach h,$(abi-includes), echo '#include <$(h)>';) \
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echo '';) \
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$(foreach v,$(abi-variants),\
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$(if $(abi-$(v)-condition),\
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echo '#if $(abi-$(v)-condition)'; \
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echo '# include <gnu/lib-names-$(v).h>'); \
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$(if $(abi-$(v)-condition),echo '#endif';)) \
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echo ''; \
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echo '#endif /* gnu/lib-names.h */'; \
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} > $@
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endif
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$(common-objpfx)$(lib-names-h-abi): $(common-objpfx)$(lib-names-stmp-abi); @:
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$(common-objpfx)$(lib-names-stmp-abi): $(..)scripts/lib-names.awk \
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$(common-objpfx)soversions.i
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$(make-target-directory)
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{ \
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$(if $(abi-variants), \
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echo '/* This file is automatically generated. */';\
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echo '#ifndef __GNU_LIB_NAMES_H'; \
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echo '# error "Never use <$(lib-names-h-abi)> directly; include <gnu/lib-names.h> instead."'; \
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echo '#endif';, \
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echo '/* This file is automatically generated.';\
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echo ' It defines macros to allow user program to find the shared'; \
|
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echo ' library files which come as part of GNU libc. */'; \
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echo '#ifndef __GNU_LIB_NAMES_H'; \
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echo '#define __GNU_LIB_NAMES_H 1';) \
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echo ''; \
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($(foreach s,$(all-sonames), echo $(s);)) \
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| LC_ALL=C $(AWK) -f $(firstword $^) | LC_ALL=C sort; \
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$(if $(abi-variants),, \
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echo ''; \
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echo '#endif /* gnu/lib-names.h */';) \
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} > ${@:stmp=T}
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$(move-if-change) ${@:stmp=T} ${@:stmp=h}
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touch $@
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endif
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common-generated += $(lib-names-h-abi) $(lib-names-stmp-abi)
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endif
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###############################################################################
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# NOTE! Everything adding to before-compile needs to come before this point! #
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###############################################################################
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# 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.
|
||
|
||
# System-dependent makefiles can put in `inhibit-sysdep-asm' regexps
|
||
# matching sysdep directories whose assembly source files should be
|
||
# suppressed.
|
||
|
||
-include $(common-objpfx)sysd-rules
|
||
ifneq ($(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
|
||
$(common-objpfx)sysd-rules: $(..)scripts/sysd-rules.awk \
|
||
$(common-objpfx)config.make $(..)Makerules \
|
||
$(sysdep-makefiles) $(sysdep-makeconfigs) \
|
||
$(sysd-rules-force)
|
||
-@rm -f $@T
|
||
LC_ALL=C $(AWK) -f $< > $@T \
|
||
-v all_object_suffixes='$(all-object-suffixes)' \
|
||
-v inhibit_sysdep_asm='$(inhibit-sysdep-asm)' \
|
||
-v sysd_rules_patterns='$(sysd-rules-patterns)' \
|
||
-v config_sysdirs='$(config-sysdirs)'
|
||
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
|
||
|
||
define o-iterator-doit
|
||
$(objpfx)%$o: %.S $(before-compile); $$(compile-command.S)
|
||
endef
|
||
object-suffixes-left := $(all-object-suffixes)
|
||
include $(o-iterator)
|
||
|
||
define o-iterator-doit
|
||
$(objpfx)%$o: %.c $(before-compile); $$(compile-command.c)
|
||
endef
|
||
object-suffixes-left := $(all-object-suffixes)
|
||
include $(o-iterator)
|
||
|
||
define o-iterator-doit
|
||
$(objpfx)%$o: %.cc $(before-compile); $$(compile-command.cc)
|
||
endef
|
||
object-suffixes-left := $(all-object-suffixes)
|
||
include $(o-iterator)
|
||
|
||
# Omit the objpfx rules when building in the source tree, because
|
||
# objpfx is empty and so these rules just override the ones above.
|
||
ifdef objpfx
|
||
# Define first rules to find the source files in $(objpfx).
|
||
# Generated source files will end up there.
|
||
define o-iterator-doit
|
||
$(objpfx)%$o: $(objpfx)%.S $(before-compile); $$(compile-command.S)
|
||
endef
|
||
object-suffixes-left := $(all-object-suffixes)
|
||
include $(o-iterator)
|
||
|
||
define o-iterator-doit
|
||
$(objpfx)%$o: $(objpfx)%.c $(before-compile); $$(compile-command.c)
|
||
endef
|
||
object-suffixes-left := $(all-object-suffixes)
|
||
include $(o-iterator)
|
||
endif
|
||
|
||
# Generate version maps, but wait until sysdep-subdirs is known
|
||
ifeq ($(sysd-sorted-done),t)
|
||
ifeq ($(build-shared),yes)
|
||
-include $(common-objpfx)sysd-versions
|
||
$(addprefix $(common-objpfx),$(version-maps)): $(common-objpfx)sysd-versions
|
||
common-generated += $(version-maps)
|
||
postclean-generated += sysd-versions Versions.all abi-versions.h \
|
||
Versions.def Versions.v.i Versions.v
|
||
|
||
ifndef avoid-generated
|
||
ifneq ($(sysd-versions-subdirs),$(sorted-subdirs) $(config-sysdirs))
|
||
sysd-versions-force = FORCE
|
||
FORCE:
|
||
endif
|
||
|
||
$(common-objpfx)Versions.def: $(..)scripts/versionlist.awk \
|
||
$(common-objpfx)Versions.v
|
||
LC_ALL=C $(AWK) -f $^ > $@T
|
||
mv -f $@T $@
|
||
|
||
$(common-objpfx)Versions.all: $(..)scripts/firstversions.awk \
|
||
$(common-objpfx)soversions.i \
|
||
$(common-objpfx)Versions.def
|
||
{ while read which lib version setname; do \
|
||
test x"$$which" = xDEFAULT || continue; \
|
||
test -z "$$setname" || echo "$$lib : $$setname"; \
|
||
done < $(word 2,$^); \
|
||
cat $(word 3,$^); \
|
||
} | LC_ALL=C $(AWK) -f $< > $@T
|
||
mv -f $@T $@
|
||
# See %.v/%.v.i implicit rules in Makeconfig.
|
||
$(common-objpfx)Versions.v.i: $(wildcard $(subdirs:%=$(..)%/Versions)) \
|
||
$(wildcard $(sysdirs:%=%/Versions)) \
|
||
$(sysd-versions-force)
|
||
$(common-objpfx)sysd-versions: $(common-objpfx)versions.stmp
|
||
$(common-objpfx)versions.stmp: $(common-objpfx)Versions.all \
|
||
$(common-objpfx)Versions.v \
|
||
$(..)scripts/versions.awk
|
||
( echo 'sysd-versions-subdirs = $(subdirs) $(config-sysdirs)' ; \
|
||
cat $(word 2,$^) \
|
||
| LC_ALL=C $(AWK) -v buildroot=$(common-objpfx) -v defsfile=$< \
|
||
-v move_if_change='$(move-if-change)' \
|
||
-f $(word 3,$^); \
|
||
) > $(common-objpfx)sysd-versionsT
|
||
mv -f $(common-objpfx)sysd-versionsT $(common-objpfx)sysd-versions
|
||
touch $@
|
||
endif # avoid-generated
|
||
endif # $(build-shared) = yes
|
||
endif # sysd-sorted-done
|
||
|
||
# Generate .dT files as we compile.
|
||
compile-mkdep-flags = -MD -MP -MF $@.dt -MT $@
|
||
compile-command.S = $(compile.S) $(OUTPUT_OPTION) $(compile-mkdep-flags)
|
||
compile-command.c = $(compile.c) $(OUTPUT_OPTION) $(compile-mkdep-flags)
|
||
compile-command.cc = $(compile.cc) $(OUTPUT_OPTION) $(compile-mkdep-flags)
|
||
|
||
# Like compile-mkdep-flags, but for use with $(BUILD_CC). We don't want to
|
||
# track system includes here, they may spuriously trigger an install rule,
|
||
# and would cause the check-local-headers test to fail.
|
||
native-compile-mkdep-flags = -MMD -MP -MF $@.dt -MT $@
|
||
|
||
# GCC can grok options after the file name, and it looks nicer that way.
|
||
compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS)
|
||
compile.cc = $(CXX) $< -c $(CXXFLAGS) $(CPPFLAGS)
|
||
compile.S = $(CC) $< -c $(CPPFLAGS) $(S-CPPFLAGS) \
|
||
$(ASFLAGS) $(ASFLAGS-$(suffix $@))
|
||
COMPILE.c = $(CC) -c $(CFLAGS) $(CPPFLAGS)
|
||
COMPILE.S = $(CC) -c $(CPPFLAGS) $(S-CPPFLAGS) \
|
||
$(ASFLAGS) $(ASFLAGS-$(suffix $@))
|
||
|
||
# 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 $@
|
||
|
||
# This is the end of the pipeline for compiling generated C code.
|
||
compile-stdin.c = $(COMPILE.c) -o $@ -x c - $(compile-mkdep-flags)
|
||
|
||
# We need the $(CFLAGS) to be in there to have the right predefines during
|
||
# the dependency run for C sources. But having it for assembly sources can
|
||
# get the wrong predefines.
|
||
S-CPPFLAGS = -DASSEMBLER $(asm-CPPFLAGS)
|
||
|
||
define +make-deps
|
||
$(make-target-directory)
|
||
$(+mkdep) $< $(if $(filter %.c,$<),$(CFLAGS)) \
|
||
$(CPPFLAGS) $($(patsubst .%,%,$(suffix $(<F)))-CPPFLAGS) | sed -e\
|
||
's,$(subst .,\.,$(@F:.d=.o)),$(foreach o,$(all-object-suffixes),$(@:.d=$o)) $@,' \
|
||
$(sed-remove-objpfx) $(sed-remove-dotdot) > $(@:.d=.T)
|
||
mv -f $(@:.d=.T) $@ $(generate-md5)
|
||
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
|
||
|
||
# Modify the list of routines we build for different targets
|
||
|
||
ifeq (yes,$(build-shared))
|
||
ifndef libc.so-version
|
||
# Undefine this because it can't work when we libc.so is unversioned.
|
||
static-only-routines =
|
||
endif
|
||
endif
|
||
|
||
elide-routines.oS += $(filter-out $(static-only-routines),\
|
||
$(routines) $(aux) $(sysdep_routines))
|
||
elide-routines.os += $(static-only-routines)
|
||
|
||
# If we have versioned code we don't need the old versions in any of the
|
||
# static libraries.
|
||
elide-routines.o += $(shared-only-routines)
|
||
elide-routines.op += $(shared-only-routines)
|
||
|
||
# Shared library building.
|
||
|
||
ifeq (yes,$(build-shared))
|
||
|
||
# Reference map file only when shared libraries are built and a map file name
|
||
# is given.
|
||
ifeq ($(build-shared),yes)
|
||
map-file = $(firstword $($(@F:.so=-map)) \
|
||
$(addprefix $(common-objpfx), \
|
||
$(filter $(@F:.so=.map),$(version-maps))))
|
||
load-map-file = $(map-file:%=-Wl,--version-script=%)
|
||
endif
|
||
|
||
# Compiler arguments to use to link a shared object with libc and
|
||
# ld.so. This is intended to be as similar as possible to a default
|
||
# link with an installed libc.
|
||
link-libc-args = -Wl,--start-group \
|
||
$(libc-for-link) \
|
||
$(common-objpfx)libc_nonshared.a \
|
||
$(as-needed) $(elf-objpfx)ld.so $(no-as-needed) \
|
||
-Wl,--end-group
|
||
|
||
# The corresponding shared libc to use. This may be modified for a
|
||
# particular target.
|
||
libc-for-link = $(common-objpfx)libc.so
|
||
|
||
# The corresponding dependencies. As these are used in dependencies,
|
||
# not just commands, they cannot use target-specific variables so need
|
||
# to name both possible libc.so objects.
|
||
link-libc-deps = $(common-objpfx)libc.so $(common-objpfx)linkobj/libc.so \
|
||
$(common-objpfx)libc_nonshared.a $(elf-objpfx)ld.so
|
||
|
||
# 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. The linking with libc and ld.so is intended
|
||
# to be as similar as possible to a default link with an installed libc.
|
||
lib%.so: lib%_pic.a $(+preinit) $(+postinit) $(link-libc-deps)
|
||
$(build-shlib) $(link-libc-args)
|
||
$(call after-link,$@)
|
||
|
||
define build-shlib-helper
|
||
$(LINK.o) -shared -static-libgcc -Wl,-O1 $(sysdep-LDFLAGS) \
|
||
$(if $($(@F)-no-z-defs)$(no-z-defs),,-Wl,-z,defs) $(rtld-LDFLAGS) \
|
||
$(extra-B-$(@F:lib%.so=%).so) -B$(csu-objpfx) \
|
||
$(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
|
||
-Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \
|
||
$(LDFLAGS.so) $(LDFLAGS-lib.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
|
||
-L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link)
|
||
endef
|
||
|
||
ifeq (yes,$(use-default-link))
|
||
# If the linker is good enough, we can let it use its default linker script.
|
||
shlib-lds =
|
||
shlib-lds-flags =
|
||
else
|
||
# binutils only position loadable notes into the first page for binaries,
|
||
# not for shared objects
|
||
$(common-objpfx)shlib.lds: $(common-objpfx)config.make $(..)Makerules
|
||
$(LINK.o) -shared -Wl,-O1 \
|
||
-nostdlib -nostartfiles \
|
||
$(sysdep-LDFLAGS) $(rtld-LDFLAGS) $(LDFLAGS.so) \
|
||
-Wl,--verbose 2>&1 | \
|
||
sed > $@T \
|
||
-e '/^=========/,/^=========/!d;/^=========/d' \
|
||
$(if $(filter yes,$(have-hash-style)), \
|
||
-e 's/^.*\.gnu\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \
|
||
-e '/^[ ]*\.hash[ ]*:.*$$/{h;d;}' \
|
||
-e '/DATA_SEGMENT_ALIGN/{H;g}' \
|
||
, \
|
||
-e 's/^.*\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \
|
||
) \
|
||
-e 's/^.*\*(\.dynbss).*$$/& \
|
||
PROVIDE(__start___libc_freeres_ptrs = .); \
|
||
*(__libc_freeres_ptrs) \
|
||
PROVIDE(__stop___libc_freeres_ptrs = .);/'\
|
||
-e 's@^.*\*(\.jcr).*$$@& \
|
||
PROVIDE(__start___libc_subfreeres = .);\
|
||
__libc_subfreeres : { *(__libc_subfreeres) }\
|
||
PROVIDE(__stop___libc_subfreeres = .);\
|
||
PROVIDE(__start___libc_atexit = .);\
|
||
__libc_atexit : { *(__libc_atexit) }\
|
||
PROVIDE(__stop___libc_atexit = .);\
|
||
PROVIDE(__start___libc_thread_subfreeres = .);\
|
||
__libc_thread_subfreeres : { *(__libc_thread_subfreeres) }\
|
||
PROVIDE(__stop___libc_thread_subfreeres = .);\
|
||
PROVIDE(__start___libc_IO_vtables = .);\
|
||
__libc_IO_vtables : { *(__libc_IO_vtables) }\
|
||
PROVIDE(__stop___libc_IO_vtables = .);\
|
||
/DISCARD/ : { *(.gnu.glibc-stub.*) }@'
|
||
test -s $@T
|
||
mv -f $@T $@
|
||
common-generated += shlib.lds
|
||
|
||
shlib-lds = $(common-objpfx)shlib.lds
|
||
shlib-lds-flags = -T $(shlib-lds)
|
||
endif
|
||
|
||
define build-shlib
|
||
$(build-shlib-helper) -o $@ $(shlib-lds-flags) \
|
||
$(csu-objpfx)abi-note.o $(build-shlib-objlist)
|
||
endef
|
||
|
||
define build-module-helper
|
||
$(LINK.o) -shared -static-libgcc $(sysdep-LDFLAGS) $(rtld-LDFLAGS) \
|
||
$(if $($(@F)-no-z-defs)$(no-z-defs),,-Wl,-z,defs) \
|
||
-B$(csu-objpfx) $(load-map-file) \
|
||
$(LDFLAGS.so) $(LDFLAGS-$(@F:%.so=%).so) \
|
||
-L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link)
|
||
endef
|
||
|
||
# This macro is similar to build-shlib but it does not define a soname
|
||
# and it does not depend on the destination name to start with `lib'.
|
||
# binutils only position loadable notes into the first page for binaries,
|
||
# not for shared objects
|
||
define build-module
|
||
$(build-module-helper) -o $@ $(shlib-lds-flags) \
|
||
$(csu-objpfx)abi-note.o $(build-module-objlist) $(link-libc-args)
|
||
$(call after-link,$@)
|
||
endef
|
||
define build-module-asneeded
|
||
$(build-module-helper) -o $@ $(shlib-lds-flags) \
|
||
$(csu-objpfx)abi-note.o \
|
||
-Wl,--as-needed $(build-module-objlist) -Wl,--no-as-needed \
|
||
$(link-libc-args)
|
||
$(call after-link,$@)
|
||
endef
|
||
|
||
build-module-helper-objlist = \
|
||
$(patsubst %_pic.a,$(whole-archive) %_pic.a $(no-whole-archive),\
|
||
$(filter-out %.lds $(map-file) $(+preinit) $(+postinit) \
|
||
$(link-libc-deps),$^))
|
||
|
||
build-module-objlist = $(build-module-helper-objlist) $(LDLIBS-$(@F:%.so=%).so)
|
||
build-shlib-objlist = $(build-module-helper-objlist) \
|
||
$(LDLIBS-$(@F:lib%.so=%).so)
|
||
|
||
# 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
|
||
# But we still want to link libc.so against $(libc.so-gnulib).
|
||
LDLIBS-c.so += $(libc.so-gnulib)
|
||
# Give libc.so an entry point and make it directly runnable itself.
|
||
LDFLAGS-c.so += -e __libc_main
|
||
# Pre-link the objects of libc_pic.a so that we can locally resolve
|
||
# COMMON symbols before we link against ld.so. This is because ld.so
|
||
# contains some of libc_pic.a already, which will prevent the COMMONs
|
||
# from being allocated in libc.so, which introduces evil dependencies
|
||
# between libc.so and ld.so, which can make it impossible to upgrade.
|
||
$(common-objpfx)libc_pic.os: $(common-objpfx)libc_pic.a
|
||
$(LINK.o) -nostdlib -nostartfiles -r -o $@ \
|
||
$(LDFLAGS-c_pic.os) -Wl,-d $(whole-archive) $^ -o $@
|
||
|
||
ifeq (,$(strip $(shlib-lds-flags)))
|
||
# Generate a list of -R options to excise .gnu.glibc-stub.* sections.
|
||
$(common-objpfx)libc_pic.opts: $(common-objpfx)libc_pic.os
|
||
$(OBJDUMP) -h $< | \
|
||
$(AWK) '$$2 ~ /\.gnu\.glibc-stub\./ { print "-R", $$2 }' \
|
||
> $@T
|
||
mv -f $@T $@
|
||
# Apply those -R options.
|
||
$(common-objpfx)libc_pic.os.clean: $(common-objpfx)libc_pic.opts \
|
||
$(common-objpfx)libc_pic.os
|
||
$(OBJCOPY) @$^ $@
|
||
generated += libc_pic.opts libc_pic.os.clean
|
||
|
||
libc_pic_clean := .clean
|
||
endif
|
||
|
||
# Build a possibly-modified version of libc_pic.a for use in building
|
||
# linkobj/libc.so.
|
||
ifeq (,$(filter sunrpc,$(subdirs)))
|
||
$(common-objpfx)linkobj/libc_pic.a: $(common-objpfx)libc_pic.a
|
||
$(make-target-directory)
|
||
ln -f $< $@
|
||
else
|
||
$(common-objpfx)linkobj/libc_pic.a: $(common-objpfx)libc_pic.a \
|
||
$(common-objpfx)sunrpc/librpc_compat_pic.a
|
||
$(make-target-directory)
|
||
(cd $(common-objpfx)linkobj; \
|
||
$(AR) x ../libc_pic.a; \
|
||
rm $$($(AR) t ../sunrpc/librpc_compat_pic.a | sed 's/^compat-//'); \
|
||
$(AR) x ../sunrpc/librpc_compat_pic.a; \
|
||
$(AR) cr libc_pic.a *.os; \
|
||
rm *.os)
|
||
endif # $(subdirs) contains sunrpc
|
||
|
||
# Clear link-libc-deps for the libc.so libraries so build-shlibs does not
|
||
# filter ld.so out of the list of linked objects.
|
||
$(common-objpfx)libc.so: link-libc-deps = # empty
|
||
$(common-objpfx)linkobj/libc.so: link-libc-deps = # empty
|
||
|
||
# Use our own special initializer and finalizer files for the libc.so
|
||
# libraries.
|
||
$(common-objpfx)libc.so: $(elf-objpfx)soinit.os \
|
||
$(common-objpfx)libc_pic.os$(libc_pic_clean) \
|
||
$(elf-objpfx)sofini.os \
|
||
$(elf-objpfx)interp.os \
|
||
$(elf-objpfx)ld.so \
|
||
$(shlib-lds)
|
||
$(build-shlib)
|
||
$(call after-link,$@)
|
||
|
||
$(common-objpfx)linkobj/libc.so: $(elf-objpfx)soinit.os \
|
||
$(common-objpfx)linkobj/libc_pic.a \
|
||
$(elf-objpfx)sofini.os \
|
||
$(elf-objpfx)interp.os \
|
||
$(elf-objpfx)ld.so \
|
||
$(shlib-lds)
|
||
$(build-shlib)
|
||
$(call after-link,$@)
|
||
|
||
ifeq ($(build-shared),yes)
|
||
$(common-objpfx)libc.so: $(common-objpfx)libc.map
|
||
endif
|
||
common-generated += libc.so libc_pic.os
|
||
ifdef libc.so-version
|
||
$(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so
|
||
$(make-link)
|
||
common-generated += libc.so$(libc.so-version)
|
||
endif
|
||
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))
|
||
|
||
|
||
# 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
|
||
|
||
|
||
# The makefile may define $(modules-names) to build additional modules.
|
||
# These are built with $(build-module), except any in $(modules-names-nobuild).
|
||
# MODULE_NAME=extramodules, except any in $(modules-names-tests).
|
||
ifdef modules-names
|
||
cpp-srcs-left := $(filter-out $(modules-names-tests),$(modules-names))
|
||
ifneq (,$(cpp-srcs-left))
|
||
lib := extramodules
|
||
include $(patsubst %,$(..)libof-iterator.mk,$(cpp-srcs-left))
|
||
endif
|
||
|
||
ifdef modules-names-tests
|
||
cpp-srcs-left := $(filter $(modules-names-tests),$(modules-names))
|
||
ifneq (,$(cpp-srcs-left))
|
||
lib := testsuite
|
||
include $(patsubst %,$(..)libof-iterator.mk,$(cpp-srcs-left))
|
||
endif
|
||
endif
|
||
|
||
extra-modules-build := $(filter-out $(modules-names-nobuild),$(modules-names))
|
||
$(extra-modules-build:%=$(objpfx)%.so): $(objpfx)%.so: \
|
||
$(objpfx)%.os $(shlib-lds) $(link-libs-deps)
|
||
$(build-module)
|
||
endif
|
||
|
||
+depfiles := $(sources:.c=.d) \
|
||
$(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
|
||
$(patsubst %.oS,%.d,$(filter %.oS,$(extra-objs))) \
|
||
$(patsubst %.o,%.d,$(filter %.o,$(extra-test-objs:.os=.o))) \
|
||
$(addsuffix .d,$(tests) $(tests-internal) $(xtests) $(test-srcs))
|
||
ifeq ($(build-programs),yes)
|
||
+depfiles += $(addsuffix .d,$(others) $(sysdep-others))
|
||
endif
|
||
+depfiles := $(addprefix $(objpfx),\
|
||
$(filter-out $(addsuffix .d,$(omit-deps)),\
|
||
$(+depfiles)))
|
||
all-dt-files := $(foreach o,$(object-suffixes-for-libc),$(+depfiles:.d=$o.dt))
|
||
+depfiles := $(patsubst %.dt,%.d,$(wildcard $(all-dt-files))) \
|
||
$(wildcard $(all-dt-files:.dt=.d))
|
||
|
||
# This is a funny rule in that it removes its input file.
|
||
%.d: %.dt
|
||
@sed $(sed-remove-objpfx) $< > $(@:.d=.T) && \
|
||
mv -f $(@:.d=.T) $@ && \
|
||
rm -f $<
|
||
|
||
# Avoid the .h.d files for any .sym files whose .h files don't exist yet.
|
||
# They will be generated when they're needed, and trying too early won't work.
|
||
+gen-as-const := $(gen-as-const-headers:%.sym=$(common-objpfx)%.h)
|
||
+depfiles += $(addsuffix .d,$(filter $(wildcard $(+gen-as-const)),\
|
||
$(+gen-as-const)))
|
||
|
||
ifdef +depfiles
|
||
ifneq ($(no_deps),t)
|
||
-include $(+depfiles)
|
||
endif
|
||
endif
|
||
|
||
# Maximize efficiency by minimizing the number of rules.
|
||
.SUFFIXES: # Clear the suffix list. We don't use suffix rules.
|
||
# Don't define any builtin rules.
|
||
MAKEFLAGS := $(MAKEFLAGS)r
|
||
|
||
# Generic rule for making directories.
|
||
%/:
|
||
# mkdir isn't smart enough to strip a trailing /.
|
||
# We always require a mkdir which supports the -p option to avoid error
|
||
# messages in case of races.
|
||
mkdir -p $(@:%/=%)
|
||
|
||
# Make sure that object files are not removed
|
||
# when they are intermediates between sources and library members.
|
||
.PRECIOUS: $(addprefix $(objpfx)%,$(all-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)
|
||
CREATE_ARFLAGS := cru$(verbose)
|
||
|
||
# This makes all the object files in the parent library archive.
|
||
|
||
.PHONY: lib lib-noranlib
|
||
lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
|
||
lib-noranlib: libobjs
|
||
|
||
# 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))) \
|
||
$(addprefix $(objpfx),$(o-objects$o))
|
||
|
||
others: $(addprefix $(objpfx),$(install-lib))
|
||
|
||
ifndef objects
|
||
|
||
# Create the stamp$o files to keep the parent makefile happy.
|
||
subdir_lib: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
|
||
$(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o):
|
||
$(make-target-directory)
|
||
rm -f $@; > $@
|
||
else
|
||
|
||
# Define explicit rules to update each $(objpfx)stamp.SUFFIX
|
||
# timestamp file; these rules (one explicit rule is generated for each
|
||
# object suffix) write a list of objects to update in the stamp file.
|
||
# The parent will then actually add them all to the archive in the
|
||
# archive rule, below.
|
||
define o-iterator-doit
|
||
$(objpfx)stamp$o: $(o-objects); $$(do-stamp)
|
||
endef
|
||
define do-stamp
|
||
$(make-target-directory)
|
||
echo '$(patsubst $(objpfx)%,$(addsuffix /,$(subdir))%,$^)' > $@T
|
||
mv -f $@T $@
|
||
endef
|
||
object-suffixes-left := $(object-suffixes-for-libc)
|
||
include $(o-iterator)
|
||
|
||
endif
|
||
|
||
# Now define explicit rules to build the library archives; these depend
|
||
# on the stamp files built above.
|
||
define o-iterator-doit
|
||
$(common-objpfx)$(patsubst %,$(libtype$o),c): \
|
||
$(subdirs-stamp-o) $(common-objpfx)stamp$o; $$(do-makelib)
|
||
endef
|
||
define do-makelib
|
||
cd $(common-objdir) && \
|
||
$(AR) $(CREATE_ARFLAGS) $(@F) `cat $(patsubst $(common-objpfx)%,%,$^)`
|
||
endef
|
||
subdirs-stamps := $(foreach d,$(subdirs),$(common-objpfx)$d/stamp%)
|
||
subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps))
|
||
ifndef subdir
|
||
$(subdirs-stamps): subdir_lib;
|
||
endif
|
||
object-suffixes-left = $(object-suffixes-for-libc)
|
||
include $(o-iterator)
|
||
|
||
|
||
# This makes all the object files.
|
||
.PHONY: objects objs libobjs extra-objs
|
||
objects objs: libobjs extra-objs
|
||
libobjs: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
|
||
extra-objs: $(addprefix $(objpfx),$(extra-objs))
|
||
|
||
# Canned sequence for building an extra library archive.
|
||
define build-extra-lib
|
||
$(patsubst %/,cd % &&,$(objpfx)) \
|
||
$(AR) $(CREATE_ARFLAGS) $(@:$(objpfx)%=%) \
|
||
$(patsubst $(objpfx)%,%,$^)
|
||
endef
|
||
|
||
# Installation.
|
||
|
||
.PHONY: force-install
|
||
force-install:
|
||
|
||
# $(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), $(install-bin-script) and $(install-sbin)
|
||
# are installed from the object directory into $(bindir), $(bindir) and
|
||
# $(sbindir), respectively. $(install-others) and $(install-others-programs)
|
||
# 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 $(..)./scripts/mkinstalldirs ,\
|
||
$(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%)))
|
||
endef
|
||
|
||
# Any directory (parent or subdir) should install libc.a; this way
|
||
# "make install" in a subdir is guaranteed to install everything it changes.
|
||
installed-libcs := $(foreach o,$(filter-out .os,$(object-suffixes-for-libc)),\
|
||
$(inst_libdir)/$(patsubst %,$(libtype$o),\
|
||
$(libprefix)$(libc-name)))
|
||
|
||
.PHONY: check-install-supported
|
||
check-install-supported:
|
||
|
||
# Check to see if the prefix or exec_prefix GNU standard variable
|
||
# has been overridden on the command line and, if so, fail with
|
||
# an error message since doing so is not supported (set DESTDIR
|
||
# instead).
|
||
ifeq ($(origin prefix),command line)
|
||
check-install-supported:
|
||
$(error Overriding prefix is not supported. Set DESTDIR instead.)
|
||
endif
|
||
|
||
ifeq ($(origin exec_prefix),command line)
|
||
check-install-supported:
|
||
$(error Overriding exec_prefix is not supported. Set DESTDIR instead.)
|
||
endif
|
||
|
||
install: check-install-supported
|
||
|
||
install: $(installed-libcs)
|
||
$(installed-libcs): $(inst_libdir)/lib$(libprefix)%: lib $(+force)
|
||
$(make-target-directory)
|
||
$(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@
|
||
|
||
define do-install-program
|
||
$(make-target-directory)
|
||
$(INSTALL_PROGRAM) $< $@.new
|
||
mv -f $@.new $@
|
||
endef
|
||
|
||
define do-install-script
|
||
$(make-target-directory)
|
||
$(INSTALL_SCRIPT) $< $@.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))
|
||
# Find which .so's have versions.
|
||
versioned := $(strip $(foreach so,$(install-lib.so),\
|
||
$(patsubst %,$(so),$($(so)-version))))
|
||
|
||
install-lib.so-versioned := $(filter $(versioned), $(install-lib.so))
|
||
install-lib.so-unversioned := $(filter-out $(versioned), $(install-lib.so))
|
||
|
||
# For versioned libraries, we install three files:
|
||
# $(inst_libdir)/libfoo.so -- for linking, symlink or ld script
|
||
# $(inst_slibdir)/libfoo.so.NN -- for loading by SONAME, symlink
|
||
# $(inst_slibdir)/libfoo-X.Y.Z.so -- the real shared object file
|
||
lib-version := $(firstword $($(subdir)-version) $(version))
|
||
install-lib-nosubdir: $(install-lib.so-unversioned:%=$(inst_slibdir)/%) \
|
||
$(foreach L,$(install-lib.so-versioned),\
|
||
$(inst_libdir)/$L \
|
||
$(inst_slibdir)/$(L:.so=)-$(lib-version).so \
|
||
$(inst_slibdir)/$L$($L-version))
|
||
|
||
# Install all the unversioned shared libraries.
|
||
$(install-lib.so-unversioned:%=$(inst_slibdir)/%): $(inst_slibdir)/%.so: \
|
||
$(objpfx)%.so $(+force)
|
||
$(do-install-program)
|
||
|
||
ifneq ($(findstring -s,$(LN_S)),)
|
||
define make-link
|
||
rm -f $@.new
|
||
$(SHELL) $(..)scripts/rellns-sh $< $@.new
|
||
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
|
||
|
||
ifeq (yes,$(build-shared))
|
||
ifeq (no,$(cross-compiling))
|
||
symbolic-link-prog := $(elf-objpfx)sln
|
||
symbolic-link-list := $(elf-objpfx)symlink.list
|
||
define make-shlib-link
|
||
echo `$(..)scripts/rellns-sh -p $< $@` $@ >> $(symbolic-link-list)
|
||
endef
|
||
else # cross-compiling
|
||
# We need a definition that can be used by elf/Makefile's install rules.
|
||
symbolic-link-prog = $(LN_S)
|
||
endif
|
||
endif
|
||
ifndef make-shlib-link
|
||
define make-shlib-link
|
||
rm -f $@
|
||
$(LN_S) `$(..)scripts/rellns-sh -p $< $@` $@
|
||
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)
|
||
|
||
$(inst_slibdir)/libc.so$(libc.so-version): $(inst_slibdir)/libc-$(version).so \
|
||
$(+force)
|
||
$(make-shlib-link)
|
||
$(inst_slibdir)/libc-$(version).so: $(common-objpfx)libc.so $(+force)
|
||
$(do-install-program)
|
||
install: $(inst_slibdir)/libc.so$(libc.so-version)
|
||
|
||
# This fragment of linker script gives the OUTPUT_FORMAT statement
|
||
# for the configuration we are building. We put this statement into
|
||
# the linker scripts we install for -lc et al so that they will not be
|
||
# used by a link for a different format on a multi-architecture system.
|
||
$(common-objpfx)format.lds: $(..)scripts/output-format.sed \
|
||
$(common-objpfx)config.make \
|
||
$(common-objpfx)config.h $(..)Makerules
|
||
ifneq (unknown,$(output-format))
|
||
echo > $@.new 'OUTPUT_FORMAT($(output-format))'
|
||
else
|
||
$(LINK.o) -shared $(sysdep-LDFLAGS) $(rtld-LDFLAGS) \
|
||
$(LDFLAGS.so) $(LDFLAGS-lib.so) \
|
||
-x c /dev/null -o $@.so -Wl,--verbose -v 2>&1 \
|
||
| sed -n -f $< > $@.new
|
||
test -s $@.new
|
||
rm -f $@.so
|
||
endif
|
||
mv -f $@.new $@
|
||
common-generated += format.lds
|
||
|
||
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_nonshared.a.
|
||
# We need to use absolute paths since otherwise local copies (if they exist)
|
||
# of the files are taken by the linker.
|
||
install: $(inst_libdir)/libc.so
|
||
$(inst_libdir)/libc.so: $(common-objpfx)format.lds \
|
||
$(common-objpfx)libc.so$(libc.so-version) \
|
||
$(inst_libdir)/$(patsubst %,$(libtype.oS),\
|
||
$(libprefix)$(libc-name)) \
|
||
$(+force)
|
||
(echo '/* GNU ld script';\
|
||
echo ' Use the shared library, but some functions are only in';\
|
||
echo ' the static library, so try that secondarily. */';\
|
||
cat $<; \
|
||
echo 'GROUP ( $(slibdir)/libc.so$(libc.so-version)' \
|
||
'$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)$(libc-name))'\
|
||
' AS_NEEDED (' $(rtlddir)/$(rtld-installed-name) ') )' \
|
||
) > $@.new
|
||
mv -f $@.new $@
|
||
|
||
endif
|
||
|
||
else
|
||
install: $(inst_slibdir)/libc.so
|
||
$(inst_slibdir)/libc.so: $(common-objpfx)libc.so $(+force)
|
||
$(do-install-program)
|
||
endif
|
||
|
||
ifneq (,$(versioned))
|
||
# Produce three sets of rules as above for all the smaller versioned libraries.
|
||
|
||
define o-iterator-doit
|
||
$(inst_libdir)/$o: $(inst_slibdir)/$o$($o-version) $(+force); $$(make-link)
|
||
endef
|
||
object-suffixes-left := $(filter-out $(install-lib-ldscripts),$(versioned))
|
||
ifneq (,$(object-suffixes-left))
|
||
include $(o-iterator)
|
||
endif
|
||
|
||
# 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; $$(make-link)
|
||
endef
|
||
object-suffixes-left := $(versioned)
|
||
include $(o-iterator)
|
||
|
||
generated += $(foreach o,$(versioned),$o$($o-version))
|
||
|
||
ifeq (,$($(subdir)-version))
|
||
define o-iterator-doit
|
||
$(inst_slibdir)/$o$($o-version): $(inst_slibdir)/$(o:.so=)-$(version).so \
|
||
$(+force);
|
||
$$(make-shlib-link)
|
||
endef
|
||
object-suffixes-left := $(versioned)
|
||
include $(o-iterator)
|
||
|
||
define o-iterator-doit
|
||
$(inst_slibdir)/$(o:.so=)-$(version).so: $(objpfx)$o $(+force);
|
||
$$(do-install-program)
|
||
endef
|
||
object-suffixes-left := $(versioned)
|
||
include $(o-iterator)
|
||
else
|
||
define o-iterator-doit
|
||
$(inst_slibdir)/$o$($o-version): \
|
||
$(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so $(+force);
|
||
$$(make-shlib-link)
|
||
endef
|
||
object-suffixes-left := $(versioned)
|
||
include $(o-iterator)
|
||
|
||
define o-iterator-doit
|
||
$(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so: $(objpfx)$o $(+force);
|
||
$$(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),\
|
||
$(inst_slibdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so \
|
||
$(+force)
|
||
$(do-install-so)
|
||
$(foreach v,$(so-versions),\
|
||
$(inst_slibdir)/$(libprefix)%$v): $(common-objpfx)%.so $(+force)
|
||
$(do-install-so)
|
||
endif
|
||
|
||
ifdef install-bin
|
||
$(addprefix $(inst_bindir)/,$(install-bin)): \
|
||
$(inst_bindir)/%: $(objpfx)% $(+force)
|
||
$(do-install-program)
|
||
endif
|
||
ifdef install-bin-script
|
||
$(addprefix $(inst_bindir)/,$(install-bin-script)): \
|
||
$(inst_bindir)/%: $(objpfx)% $(+force)
|
||
$(do-install-script)
|
||
endif
|
||
ifdef install-rootsbin
|
||
$(addprefix $(inst_rootsbindir)/,$(install-rootsbin)): \
|
||
$(inst_rootsbindir)/%: $(objpfx)% $(+force)
|
||
$(do-install-program)
|
||
endif
|
||
ifdef install-sbin
|
||
$(addprefix $(inst_sbindir)/,$(install-sbin)): \
|
||
$(inst_sbindir)/%: $(objpfx)% $(+force)
|
||
$(do-install-program)
|
||
endif
|
||
ifdef install-lib
|
||
install-lib.a := $(filter lib%.a,$(install-lib))
|
||
install-lib.a := $(filter-out $(install-lib-ldscripts),$(install-lib.a))
|
||
install-lib-non.a := $(filter-out lib%.a,$(install-lib))
|
||
ifdef install-lib-non.a
|
||
$(addprefix $(inst_libdir)/$(libprefix),$(install-lib-non.a)): \
|
||
$(inst_libdir)/$(libprefix)%: $(objpfx)% $(+force)
|
||
$(do-install)
|
||
endif
|
||
ifdef install-lib.a
|
||
$(install-lib.a:lib%.a=$(inst_libdir)/lib$(libprefix)%.a): \
|
||
$(inst_libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a $(+force)
|
||
$(do-install)
|
||
endif
|
||
endif
|
||
ifdef install-data
|
||
$(addprefix $(inst_datadir)/,$(install-data)): $(inst_datadir)/%: % $(+force)
|
||
$(do-install)
|
||
endif
|
||
headers := $(strip $(headers))
|
||
ifdef headers
|
||
# This implicit rule installs headers from the source directory.
|
||
# It may be ignored in preference to rules from sysd-rules to find
|
||
# headers in the sysdeps tree.
|
||
$(inst_includedir)/%.h: $(objpfx)%.h $(+force)
|
||
$(do-install)
|
||
$(inst_includedir)/%.h: $(common-objpfx)%.h $(+force)
|
||
$(do-install)
|
||
$(inst_includedir)/%.h: %.h $(+force)
|
||
$(do-install)
|
||
$(inst_includedir)/%.h: $(..)include/%.h $(+force)
|
||
$(do-install)
|
||
headers-nonh := $(filter-out %.h,$(headers))
|
||
ifdef headers-nonh
|
||
$(addprefix $(inst_includedir)/,$(headers-nonh)): $(inst_includedir)/%: \
|
||
% $(+force)
|
||
$(do-install)
|
||
endif # headers-nonh
|
||
endif # headers
|
||
|
||
.PHONY: install-bin-nosubdir install-bin-script-nosubdir \
|
||
install-rootsbin-nosubdir install-sbin-nosubdir install-lib-nosubdir \
|
||
install-data-nosubdir install-headers-nosubdir
|
||
install-bin-nosubdir: $(addprefix $(inst_bindir)/,$(install-bin))
|
||
install-bin-script-nosubdir: $(addprefix $(inst_bindir)/,$(install-bin-script))
|
||
install-rootsbin-nosubdir: \
|
||
$(addprefix $(inst_rootsbindir)/,$(install-rootsbin))
|
||
install-sbin-nosubdir: $(addprefix $(inst_sbindir)/,$(install-sbin))
|
||
install-lib-nosubdir: $(addprefix $(inst_libdir)/,\
|
||
$(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \
|
||
$(addprefix $(libprefix),$(install-lib-non.a)))
|
||
install-data-nosubdir: $(addprefix $(inst_datadir)/,$(install-data))
|
||
install-headers-nosubdir: $(addprefix $(inst_includedir)/,$(headers))
|
||
install-others-nosubdir: $(install-others)
|
||
install-others-programs-nosubdir: $(install-others-programs)
|
||
|
||
# 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-lib-nosubdir install-others-nosubdir
|
||
ifeq ($(build-programs),yes)
|
||
install-no-libc.a-nosubdir: install-bin-nosubdir install-bin-script-nosubdir \
|
||
install-rootsbin-nosubdir install-sbin-nosubdir \
|
||
install-others-programs-nosubdir
|
||
endif
|
||
install: install-no-libc.a-nosubdir
|
||
|
||
# Command to compile $< using the native libraries.
|
||
define native-compile
|
||
$(make-target-directory)
|
||
$(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
|
||
$< $(OUTPUT_OPTION) $(BUILD_LDFLAGS)
|
||
endef
|
||
|
||
# We always want to use configuration definitions.
|
||
ALL_BUILD_CFLAGS = $(BUILD_CFLAGS) $(BUILD_CPPFLAGS) -D_GNU_SOURCE \
|
||
-DIS_IN_build -include $(common-objpfx)config.h
|
||
|
||
# Support the GNU standard name for this target.
|
||
.PHONY: check
|
||
check: tests
|
||
# Special target to run tests which cannot be run unconditionally.
|
||
# Maintainers should use this target.
|
||
.PHONY: xcheck
|
||
xcheck: xtests
|
||
|
||
# The only difference between MODULE_NAME=testsuite and MODULE_NAME=nonlib is
|
||
# that almost all internal declarations from config.h, libc-symbols.h, and
|
||
# include/*.h are not available to 'testsuite' code, but are to 'nonlib' code.
|
||
all-testsuite := $(strip $(tests) $(xtests) $(test-srcs) $(test-extras))
|
||
ifneq (,$(all-testsuite))
|
||
cpp-srcs-left = $(all-testsuite)
|
||
lib := testsuite
|
||
include $(patsubst %,$(..)libof-iterator.mk,$(cpp-srcs-left))
|
||
endif
|
||
|
||
all-nonlib := $(strip $(tests-internal) $(test-internal-extras) $(others))
|
||
ifneq (,$(all-nonlib))
|
||
cpp-srcs-left = $(all-nonlib)
|
||
lib := nonlib
|
||
include $(patsubst %,$(..)libof-iterator.mk,$(cpp-srcs-left))
|
||
endif
|
||
|
||
|
||
ifeq ($(build-shared),yes)
|
||
# Generate normalized lists of symbols, versions, and data sizes.
|
||
# This is handy for checking against existing library binaries.
|
||
|
||
%.symlist: $(..)scripts/abilist.awk %.dynsym
|
||
LC_ALL=C $(AWK) -f $^ > $@T
|
||
mv -f $@T $@
|
||
|
||
%.dynsym: %.so
|
||
LC_ALL=C $(OBJDUMP) --dynamic-syms $< > $@T
|
||
mv -f $@T $@
|
||
|
||
# A sysdeps/.../Makefile can set abilist-pattern to something like
|
||
# %-foo.abilist to look for libc-foo.abilist instead of libc.abilist.
|
||
# This makes sense if multiple ABIs can be most cleanly supported by a
|
||
# configuration without using separate sysdeps directories for each.
|
||
ifdef abilist-pattern
|
||
vpath $(abilist-pattern) $(+sysdep_dirs)
|
||
endif
|
||
|
||
vpath %.abilist $(+sysdep_dirs)
|
||
|
||
# The .PRECIOUS rule prevents the files built by an implicit rule whose
|
||
# target pattern is %.symlist from being considered "intermediate files"
|
||
# and automatically removed. We only want these files to be removed by
|
||
# 'make clean', which is handled by the 'generated' variable.
|
||
.PRECIOUS: %.symlist
|
||
generated += $(extra-libs:=.symlist)
|
||
|
||
ifdef abilist-pattern
|
||
$(objpfx)check-abi-%.out: $(common-objpfx)config.make $(abilist-pattern) \
|
||
$(objpfx)%.symlist
|
||
$(check-abi-pattern); \
|
||
$(evaluate-test)
|
||
$(objpfx)check-abi-%.out: $(common-objpfx)config.make $(abilist-pattern) \
|
||
$(common-objpfx)%.symlist
|
||
$(check-abi-pattern); \
|
||
$(evaluate-test)
|
||
endif
|
||
$(objpfx)check-abi-%.out: $(common-objpfx)config.make %.abilist \
|
||
$(objpfx)%.symlist
|
||
$(check-abi); \
|
||
$(evaluate-test)
|
||
$(objpfx)check-abi-%.out: $(common-objpfx)config.make %.abilist \
|
||
$(common-objpfx)%.symlist
|
||
$(check-abi); \
|
||
$(evaluate-test)
|
||
define check-abi-pattern
|
||
diff -p -U 0 $(filter $(abilist-pattern),$^) $(filter %.symlist,$^) \
|
||
> $@
|
||
endef
|
||
define check-abi
|
||
diff -p -U 0 $(filter %.abilist,$^) $(filter %.symlist,$^) > $@
|
||
endef
|
||
|
||
ifdef abilist-pattern
|
||
update-abi-%: $(objpfx)%.symlist $(abilist-pattern)
|
||
$(update-abi-pattern)
|
||
update-abi-%: $(common-objpfx)%.symlist $(abilist-pattern)
|
||
$(update-abi-pattern)
|
||
endif
|
||
update-abi-%: $(objpfx)%.symlist %.abilist
|
||
$(update-abi)
|
||
update-abi-%: $(common-objpfx)%.symlist %.abilist
|
||
$(update-abi)
|
||
define update-abi-pattern
|
||
@if cmp -s $^ 2> /dev/null; \
|
||
then \
|
||
echo '+++ $(filter $(abilist-pattern),$^) is unchanged'; \
|
||
else cp -f $^; \
|
||
echo '*** Now check $(filter $(abilist-pattern),$^) changes for correctness ***'; \
|
||
fi
|
||
endef
|
||
define update-abi
|
||
@if cmp -s $^ 2> /dev/null; \
|
||
then \
|
||
echo '+++ $(filter %.abilist,$^) is unchanged'; \
|
||
else cp -f $^; \
|
||
echo '*** Now check $(filter %.abilist,$^) changes for correctness ***'; \
|
||
fi
|
||
endef
|
||
|
||
# Patch all .abilist files for one DSO. The find command locates
|
||
# abilist files for all architectures. The regular expression in the
|
||
# find invocation is needed to separate libc.abilist and
|
||
# libcrypt.abilist, for example. It assumes that abilist-pattern, if
|
||
# set, is of the form "%-SUFFIX", and not "%SUFFIX", that is, there is
|
||
# a non-alphanumeric seperator between the pattern and the suffix
|
||
# added. The abilist files in /generic/ are filtered out because
|
||
# these are expected to remain empty.
|
||
define update-all-abi
|
||
$(SHELL) $(..)scripts/update-abilist.sh $^ \
|
||
$$(find $(..)sysdeps \
|
||
-regextype posix-egrep -regex '.*/$*([^a-z0-9].*)?\.abilist$$' \
|
||
\! -regex '.*/generic/.*')
|
||
endef
|
||
ifdef abilist-pattern
|
||
update-all-abi-%: $(abilist-pattern) $(objpfx)%.symlist
|
||
$(update-all-abi)
|
||
update-all-abi-%: $(abilist-pattern) $(common-objpfx)%.symlist
|
||
$(update-all-abi)
|
||
endif
|
||
update-all-abi-%: %.abilist $(objpfx)%.symlist
|
||
$(update-all-abi)
|
||
update-all-abi-%: %.abilist $(common-objpfx)%.symlist
|
||
$(update-all-abi)
|
||
|
||
.PHONY: update-abi update-all-abi check-abi
|
||
update-abi: $(patsubst %.so,update-abi-%,$(install-lib.so-versioned))
|
||
update-all-abi: $(patsubst %.so,update-all-abi-%,$(install-lib.so-versioned))
|
||
check-abi-list = $(patsubst %.so,$(objpfx)check-abi-%.out, \
|
||
$(install-lib.so-versioned))
|
||
check-abi: $(check-abi-list)
|
||
ifdef subdir
|
||
subdir_check-abi: check-abi
|
||
subdir_update-abi: update-abi
|
||
subdir_update-all-abi: update-all-abi
|
||
else
|
||
check-abi: subdir_check-abi
|
||
if grep -q '^FAIL:' $(objpfx)*/check-abi*.test-result; then \
|
||
cat $(objpfx)*/check-abi*.out && exit 1; fi
|
||
update-abi: subdir_update-abi
|
||
update-all-abi: subdir_update-all-abi
|
||
endif
|
||
|
||
ifeq ($(subdir),elf)
|
||
check-abi: $(objpfx)check-abi-libc.out
|
||
tests-special += $(objpfx)check-abi-libc.out
|
||
update-abi: update-abi-libc
|
||
update-all-abi: update-all-abi-libc
|
||
common-generated += libc.symlist
|
||
endif
|
||
|
||
ifeq ($(build-shared),yes)
|
||
ifdef subdir
|
||
tests-special += $(check-abi-list)
|
||
endif
|
||
endif
|
||
|
||
endif
|
||
|
||
# These will have been set by sysdeps/posix/Makefile.
|
||
L_tmpnam ?= 1
|
||
TMP_MAX ?= 0
|
||
L_ctermid ?= 1
|
||
L_cuserid ?= 1
|
||
|
||
stdio_lim = $(common-objpfx)bits/stdio_lim.h
|
||
|
||
$(stdio_lim:lim.h=%.h) $(stdio_lim:lim.h=%.d): $(stdio_lim:lim.h=%.st); @:
|
||
$(stdio_lim:h=st): $(..)stdio-common/stdio_lim.h.in $(..)Rules \
|
||
$(common-objpfx)config.make
|
||
$(make-target-directory)
|
||
{ echo '#include "$(..)posix/bits/posix1_lim.h"'; \
|
||
echo '#define _LIBC 1'; \
|
||
echo '#include "$(..)misc/sys/uio.h"'; } | \
|
||
$(CC) -E -dM -MD -MP -MF $(@:st=dT) -MT '$(@:st=h) $(@:st=d)' \
|
||
$(CPPUNDEFS) $(+includes) -xc - -o $(@:st=hT)
|
||
sed $(sed-remove-objpfx) $(sed-remove-dotdot) \
|
||
$(@:st=dT) > $(@:st=dt)
|
||
mv -f $(@:st=dt) $(@:st=d)
|
||
fopen_max=`sed -n 's/^#define OPEN_MAX //1p' $(@:st=hT)`; \
|
||
filename_max=`sed -n 's/^#define PATH_MAX //1p' $(@:st=hT)`; \
|
||
iov_max=`sed -n 's/^#define UIO_MAXIOV //p' $(@:st=hT)`; \
|
||
fopen_max=$${fopen_max:-16}; \
|
||
filename_max=$${filename_max:-1024}; \
|
||
if [ -z "$$iov_max" ]; then \
|
||
define_iov_max="# undef IOV_MAX"; \
|
||
else \
|
||
define_iov_max="# define IOV_MAX $$iov_max"; \
|
||
fi; \
|
||
sed -e "s/@FOPEN_MAX@/$$fopen_max/" \
|
||
-e "s/@FILENAME_MAX@/$$filename_max/" \
|
||
-e "s/@L_tmpnam@/$(L_tmpnam)/" \
|
||
-e "s/@TMP_MAX@/$(TMP_MAX)/" \
|
||
-e "s/@L_ctermid@/$(L_ctermid)/" \
|
||
-e "s/@L_cuserid@/$(L_cuserid)/" \
|
||
-e "s/@define_IOV_MAX@/$$define_iov_max/" \
|
||
$< > $(@:st=h.new)
|
||
$(move-if-change) $(@:st=h.new) $(@:st=h)
|
||
# Remove these last so that they can be examined if something went wrong.
|
||
rm -f $(@:st=hT) $(@:st=dT) $(@:st=dt)
|
||
touch $@
|
||
# Get dependencies.
|
||
ifndef no_deps
|
||
-include $(stdio_lim:h=d)
|
||
endif
|
||
common-generated += bits/stdio_lim.h bits/stdio_lim.d bits/stdio_lim.st
|
||
|
||
FORCE:
|
||
|
||
.PHONY: echo-headers
|
||
echo-headers:
|
||
@echo $(headers)
|
||
|
||
%.bz2: %; bzip2 -9vk $<
|
||
%.gz: %; gzip -9vnc $< > $@.new && mv -f $@.new $@
|
||
%.xz: %; xz -9evk $<
|
||
|
||
# Common cleaning targets.
|
||
|
||
.PHONY: common-mostlyclean common-clean mostlyclean clean do-tests-clean
|
||
clean: common-clean
|
||
mostlyclean: common-mostlyclean
|
||
|
||
do-tests-clean:
|
||
-rm -f $(addprefix $(objpfx),$(addsuffix .out,$(tests) \
|
||
$(tests-internal) \
|
||
$(xtests) \
|
||
$(test-srcs)) \
|
||
$(addsuffix .test-result,$(tests) \
|
||
$(tests-internal) \
|
||
$(xtests) \
|
||
$(test-srcs)))
|
||
|
||
# Remove the object files.
|
||
common-mostlyclean:
|
||
-rm -f $(addprefix $(objpfx),$(tests) $(tests-internal) $(xtests) \
|
||
$(test-srcs) \
|
||
$(others) $(sysdep-others) stubs \
|
||
$(addsuffix .o,$(tests) \
|
||
$(tests-internal) \
|
||
$(xtests) \
|
||
$(test-srcs) \
|
||
$(others) \
|
||
$(sysdep-others)) \
|
||
$(addsuffix .out,$(tests) \
|
||
$(tests-internal) \
|
||
$(xtests) \
|
||
$(test-srcs)) \
|
||
$(addsuffix .test-result,$(tests) \
|
||
$(tests-internal) \
|
||
$(xtests) \
|
||
$(test-srcs)))
|
||
-rm -f $(addprefix $(objpfx),$(extra-objs) $(extra-test-objs) \
|
||
$(install-lib) $(install-lib.so) \
|
||
$(install-lib.so:%.so=%_pic.a))
|
||
-rm -f core
|
||
-rm -f $(objpfx)rtld-*.os
|
||
$(rmobjs)
|
||
define rmobjs
|
||
$(foreach o,$(object-suffixes-for-libc),
|
||
-rm -f $(objpfx)stamp$o $(o-objects))
|
||
endef
|
||
|
||
# Also remove the dependencies and generated source files.
|
||
common-clean: common-mostlyclean
|
||
-rm -f $(addprefix $(objpfx),$(generated))
|
||
-rm -f $(objpfx)*.d $(objpfx)*.dt
|
||
-rm -fr $(addprefix $(objpfx),$(generated-dirs))
|
||
-rm -f $(addprefix $(common-objpfx),$(common-generated))
|
||
-rm -f $(gen-as-const-headers:%.sym=$(common-objpfx)%.h)
|
||
|
||
# Produce a file `stubs' which contains `#define __stub_FUNCTION'
|
||
# for each function which is a stub.
|
||
|
||
ifdef objpfx
|
||
.PHONY: stubs # The parent Makefile calls this target.
|
||
stubs: $(objpfx)stubs
|
||
endif
|
||
objs-for-stubs := $(foreach o,$(object-suffixes-for-libc),$(o-objects)) \
|
||
$(addprefix $(objpfx),$(extra-objs))
|
||
$(objpfx)stubs: $(objs-for-stubs)
|
||
ifneq (,$(strip $(objs-for-stubs)))
|
||
(cd $(objpfx).; $(OBJDUMP) -h $(patsubst $(objpfx)%,%,$^)) | \
|
||
$(AWK) '/\.gnu\.glibc-stub\./ { \
|
||
sub(/\.gnu\.glibc-stub\./, "", $$2); \
|
||
stubs[$$2] = 1; } \
|
||
END { for (s in stubs) print "#define __stub_" s }' > $@T
|
||
mv -f $@T $@
|
||
else
|
||
> $@
|
||
endif
|
||
|
||
ifneq (,$(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 $@
|
||
endif
|
||
endif
|
||
|
||
# Local Variables:
|
||
# mode: makefile
|
||
# End:
|