92ef8a6fe1
When Asterisk is used with various third-party libraries (CURL, PostgresSQL, many others) that have the ability themselves to use OpenSSL, it is possible for conflicts to arise in how the OpenSSL libraries are initialized and shutdown. This patch addresses these conflicts by 'wrapping' the important functions from the OpenSSL libraries in a new shared library that is part of Asterisk itself, and is loaded in such a way as to ensure that *all* calls to these functions will be dispatched through the Asterisk wrapper functions, not the native functions. This new library is optional, but enabled by default. See the CHANGES file for documentation on how to disable it. Along the way, this patch also makes a few other minor changes: * Changes MODULES_DIR to ASTMODDIR throughout the build system, in order to more closely match what is used during run-time configuration. * Corrects some errors in the configure script where AC_CHECK_TOOLS was used instead of AC_PATH_PROG. * Adds a new variable for linker flags in the build system (DYLINK), used for producing true shared libraries (as opposed to the dynamically loadable modules that the build system produces for 'regular' Asterisk modules). * Moves the Makefile bits that handle installation and uninstallation of the main Asterisk binary into main/Makefile from the top-level Makefile. * Moves a couple of useful preprocessor macros from optional_api.h to asterisk.h. Review: https://reviewboard.asterisk.org/r/1006/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@353317 65c4cc65-6c06-0410-ace0-fbb531ad65f3
167 lines
5.8 KiB
Makefile
167 lines
5.8 KiB
Makefile
#
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# Asterisk -- A telephony toolkit for Linux.
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#
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# Makefile rules for subdirectories containing modules
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#
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# Copyright (C) 2006, Digium, Inc.
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#
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# Kevin P. Fleming <kpfleming@digium.com>
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#
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# This program is free software, distributed under the terms of
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# the GNU General Public License
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#
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# Makefile rules for building modules.
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# In most cases, we set target-specific variables for certain targets
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# (remember that they apply recursively to prerequisites).
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# Also note that we can only set one variable per rule, so we have to
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# repeat the left hand side to set multiple variables.
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ifeq ($(findstring LOADABLE_MODULES,$(MENUSELECT_CFLAGS)),)
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_ASTCFLAGS+=${GC_CFLAGS}
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endif
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ifneq ($(findstring STATIC_BUILD,$(MENUSELECT_CFLAGS)),)
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STATIC_BUILD=-static
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endif
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include $(ASTTOPDIR)/Makefile.rules
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# If MODULE_PREFIX is defined, use it to run the standard functions to set
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# C_MODS, CC_MODS, LOADABLE_MODS and EMBEDDED_MODS.
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# Each word of MODULE_PREFIX is a prefix for filenames that we consider
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# valid C or CC modules (eg. app, func ...). Note that the underscore
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# is added here, and does not need to be in MODULE_PREFIX
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#
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# Use MODULE_EXCLUDE to specify additional modules to exclude.
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ifneq ($(MODULE_PREFIX),)
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ALL_C_MODS:=
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ALL_CC_MODS:=
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ALL_C_MODS+=$(foreach p,$(MODULE_PREFIX),$(patsubst %.c,%,$(wildcard $(p)_*.c)))
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ALL_CC_MODS+=$(foreach p,$(MODULE_PREFIX),$(patsubst %.cc,%,$(wildcard $(p)_*.cc)))
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endif
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C_MODS:=$(filter-out $(MENUSELECT_$(MENUSELECT_CATEGORY)),$(ALL_C_MODS))
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CC_MODS:=$(filter-out $(MENUSELECT_$(MENUSELECT_CATEGORY)),$(ALL_CC_MODS))
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ifneq ($(findstring EMBED_$(MENUSELECT_CATEGORY),$(MENUSELECT_EMBED)),)
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EMBEDDED_MODS:=$(C_MODS) $(CC_MODS)
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else
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LOADABLE_MODS:=$(C_MODS) $(CC_MODS)
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endif
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# Both C++ and C++ sources need their module name in AST_MODULE
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# We also pass whatever _INCLUDE list is generated by menuselect
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# (they are stored in file 'makeopts'). This is also necessary
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# for components used to build modules, which can't be determined
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# by the rules in this file, so the MOD_ASTCFLAGS definition
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# is used to collect the required flags for a module... which can
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# then be used any place they are required.
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MOD_ASTCFLAGS=-DAST_MODULE=\"$(1)\" $(MENUSELECT_OPTS_$(1):%=-D%) $(foreach dep,$(MENUSELECT_DEPENDS_$(1)),$(value $(dep)_INCLUDE))
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$(addsuffix .oo,$(CC_MODS)) $(addsuffix .o,$(C_MODS)): \
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_ASTCFLAGS+=$(call MOD_ASTCFLAGS,$*)
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ifeq ($(findstring $(OSARCH), mingw32 cygwin ),)
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# don't define -fPIC on mingw32 and cygwin, it is the default
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$(LOADABLE_MODS:%=%.so): _ASTCFLAGS+=-fPIC
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endif
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# For loadable modules, pass _LIB and _LDFLAGS from menuselect.
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$(LOADABLE_MODS:%=%.so): LIBS+=$(foreach dep,$(MENUSELECT_DEPENDS_$*),$(value $(dep)_LIB))
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$(LOADABLE_MODS:%=%.so): _ASTLDFLAGS+=$(foreach dep,$(MENUSELECT_DEPENDS_$*),$(value $(dep)_LDFLAGS))
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$(EMBEDDED_MODS:%=%.o): _ASTCFLAGS+=-DEMBEDDED_MODULE=$*
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$(addsuffix .so,$(filter $(LOADABLE_MODS),$(C_MODS))): %.so: %.o
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$(addsuffix .so,$(filter $(LOADABLE_MODS),$(CC_MODS))): %.so: %.oo
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modules.link: $(addsuffix .eo,$(filter $(EMBEDDED_MODS),$(C_MODS)))
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.PHONY: clean uninstall _all moduleinfo makeopts
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ifneq ($(LOADABLE_MODS),)
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_all: $(LOADABLE_MODS:%=%.so)
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ifneq ($(findstring $(OSARCH), mingw32 cygwin ),)
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# linker options and extra libraries for cygwin
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SOLINK=-Wl,--out-implib=lib$@.a -shared
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LIBS+=-L$(ASTTOPDIR)/main -lasterisk -L$(ASTTOPDIR)/res $($@_LIBS)
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# additional libraries in res/
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endif
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endif
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ifneq ($(EMBEDDED_MODS),)
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_all: modules.link
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__embed_ldscript:
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@echo "../$(SUBDIR)/modules.link"
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__embed_ldflags:
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@echo "$(foreach mod,$(filter $(EMBEDDED_MODS),$(C_MODS)),$(foreach dep,$(MENUSELECT_DEPENDS_$(mod)),$(dep)_LDFLAGS))"
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@echo "$(foreach mod,$(filter $(EMBEDDED_MODS),$(CC_MODS)),$(foreach dep,$(MENUSELECT_DEPENDS_$(mod)),$(dep)_LDFLAGS))"
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__embed_libs:
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@echo "$(foreach mod,$(filter $(EMBEDDED_MODS),$(C_MODS)),$(foreach dep,$(MENUSELECT_DEPENDS_$(mod)),$(dep)_LIB))"
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@echo "$(foreach mod,$(filter $(EMBEDDED_MODS),$(CC_MODS)),$(foreach dep,$(MENUSELECT_DEPENDS_$(mod)),$(dep)_LIB))"
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else
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__embed_ldscript:
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__embed_ldflags:
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__embed_libs:
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endif
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modules.link:
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@rm -f $@
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@for file in $(patsubst %,$(SUBDIR)/%,$(filter %.eo,$^)); do echo "INPUT (../$${file})" >> $@; done
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@for file in $(patsubst %,$(SUBDIR)/%,$(filter-out %.eo,$^)); do echo "INPUT (../$${file})" >> $@; done
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clean::
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rm -f *.so *.o *.oo *.eo *.i *.ii
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rm -f .*.d
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rm -f *.s *.i
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rm -f modules.link
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install:: all
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@echo "Installing modules from `basename $(CURDIR)`..."
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@for x in $(LOADABLE_MODS:%=%.so); do $(INSTALL) -m 755 $$x "$(DESTDIR)$(ASTMODDIR)" ; done
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uninstall::
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dist-clean::
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rm -f .*.moduleinfo .moduleinfo
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rm -f .*.makeopts .makeopts
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rm -f *.exports
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.%.moduleinfo: %.c
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@echo "<member name=\"$*\" displayname=\"$(shell $(GREP) -e AST_MODULE_INFO $< | head -n 1 | cut -d '"' -f 2)\" remove_on_change=\"$(SUBDIR)/$*.o $(SUBDIR)/$*.so\">" > $@
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$(AWK) -f $(ASTTOPDIR)/build_tools/get_moduleinfo $< >> $@
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echo "</member>" >> $@
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.%.moduleinfo: %.cc
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@echo "<member name=\"$*\" displayname=\"$(shell $(GREP) -e AST_MODULE_INFO $< | head -n 1 | cut -d '"' -f 2)\" remove_on_change=\"$(SUBDIR)/$*.oo $(SUBDIR)/$*.so\">" > $@
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$(AWK) -f $(ASTTOPDIR)/build_tools/get_moduleinfo $< >> $@
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echo "</member>" >> $@
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.moduleinfo:: $(addsuffix .moduleinfo,$(addprefix .,$(sort $(ALL_C_MODS) $(ALL_CC_MODS))))
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@echo "<category name=\"MENUSELECT_$(MENUSELECT_CATEGORY)\" displayname=\"$(MENUSELECT_DESCRIPTION)\" remove_on_change=\"$(SUBDIR)/modules.link\">" > $@
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@cat $^ >> $@
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@echo "</category>" >> $@
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moduleinfo: .moduleinfo
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@cat $<
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.%.makeopts: %.c
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@$(AWK) -f $(ASTTOPDIR)/build_tools/get_makeopts $< > $@
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.%.makeopts: %.cc
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@$(AWK) -f $(ASTTOPDIR)/build_tools/get_makeopts $< > $@
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.makeopts:: $(addsuffix .makeopts,$(addprefix .,$(ALL_C_MODS) $(ALL_CC_MODS)))
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@cat $^ > $@
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makeopts: .makeopts
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@cat $<
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ifneq ($(wildcard .*.d),)
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include .*.d
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endif
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