mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 02:01:24 +01:00
Ian Campbell
5d3dc86715
In attempting to disaggregate libxenctrl I found that many of the pieces were going to want access to this library, so split it out (as it probably should always have been). Various build adjustments are needed. In particular things which use xtl_* themselves now need to explicity link against the library. This has a nice side effect which is that users of libxl no longer need to link against libxenctrl just to create a logger, which was counter to the principal that applications using libxl shouldn't be required to look behind the curtain. This means that xl no longer links against libxenctrl. The new library uses a version script to ensure that only expected symbols are exported and to version them such that ABI guarantees can be kept in the future. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Acked-by: Wei Liu <wei.liu2@citrix.com> [ ijc -- dropped QEMU_TRADITIONAL_REVISION update, this had since progressed to 569eac99e8dd which is after 9fad9ed28583, the commit needed here. ]
188 lines
7.0 KiB
Makefile
188 lines
7.0 KiB
Makefile
# -*- mode: Makefile; -*-
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# `all' is the default target
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all:
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-include $(XEN_ROOT)/config/Tools.mk
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include $(XEN_ROOT)/Config.mk
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export _INSTALL := $(INSTALL)
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INSTALL = $(XEN_ROOT)/tools/cross-install
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XEN_INCLUDE = $(XEN_ROOT)/tools/include
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XEN_LIBXENTOOLLOG = $(XEN_ROOT)/tools/libs/toollog
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XEN_LIBXC = $(XEN_ROOT)/tools/libxc
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XEN_XENLIGHT = $(XEN_ROOT)/tools/libxl
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XEN_XENSTORE = $(XEN_ROOT)/tools/xenstore
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XEN_LIBXENSTAT = $(XEN_ROOT)/tools/xenstat/libxenstat/src
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XEN_BLKTAP2 = $(XEN_ROOT)/tools/blktap2
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XEN_LIBVCHAN = $(XEN_ROOT)/tools/libvchan
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CFLAGS_xeninclude = -I$(XEN_INCLUDE)
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XENSTORE_XENSTORED ?= y
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ifneq ($(nosharedlibs),y)
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INSTALL_SHLIB = $(INSTALL_PROG)
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SYMLINK_SHLIB = ln -sf
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libextension = .so
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else
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libextension = .a
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XENSTORE_STATIC_CLIENTS=y
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# If something tries to use these it is a mistake. Provide references
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# to nonexistent programs to produce a sane error message.
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INSTALL_SHLIB = : install-shlib-unsupported-fail
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SYMLINK_SHLIB = : symlink-shlib-unsupported-fail
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endif
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# Compiling and linking against in tree libraries.
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#
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# In order to compile and link against an in-tree library various
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# cpp/compiler/linker options are required.
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#
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# For example consider a library "libfoo" which itself uses two other
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# libraries:
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# libbar - whose use is entirely internal to libfoo and not exposed
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# to users of libfoo at all.
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# libbaz - whose use is entirely internal to libfoo but libfoo's
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# public headers include one or more of libbaz's
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# public headers. Users of libfoo are therefore transitively
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# using libbaz's header but not linking against libbaz.
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#
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# SHDEPS_libfoo: Flags for linking recursive dependencies of
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# libfoo. Must contain SHLIB for every library which
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# libfoo links against. So must contain both
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# $(SHLIB_libbar) and $(SHLIB_libbaz).
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#
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# SHLIB_libfoo: Flags for recursively linking against libfoo. Must
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# contains SHDEPS_libfoo and:
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# -Wl,-rpath-link=<directory containing libfoo.so>
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#
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# CFLAGS_libfoo: Flags for compiling against libfoo. Must add the
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# directories containing libfoo's headers to the
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# include path. Must recursively include
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# $(CFLAGS_libbaz), to satisfy the transitive inclusion
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# of the headers but not $(CFLAGS_libbar) since none of
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# libbar's headers are required to build against
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# libfoo.
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#
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# LDLIBS_libfoo: Flags for linking against libfoo. Must contain
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# $(SHDEPS_libfoo) and the path to libfoo.so
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#
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# Consumers of libfoo should include $(CFLAGS_libfoo) and
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# $(LDLIBS_libfoo) in their appropriate directories. They should not
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# include any CFLAGS or LDLIBS relating to libbar or libbaz unless
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# they use those libraries directly (not via libfoo) too.
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#
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# Consumers of libfoo should not directly use $(SHDEPS_libfoo) or
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# $(SHLIB_libfoo)
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CFLAGS_libxentoollog = -I$(XEN_LIBXENTOOLLOG)/include $(CFLAGS_xeninclude)
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SHDEPS_libxentoollog =
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LDLIBS_libxentoollog = $(XEN_LIBXENTOOLLOG)/libxentoollog$(libextension)
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SHLIB_libxentoollog = -Wl,-rpath-link=$(XEN_LIBXENTOOLLOG)
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CFLAGS_libxenctrl = -I$(XEN_LIBXC)/include $(CFLAGS_libxentoollog) $(CFLAGS_xeninclude)
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SHDEPS_libxenctrl = $(SHLIB_libxentoollog)
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LDLIBS_libxenctrl = $(SHDEPS_libxenctrl) $(XEN_LIBXC)/libxenctrl$(libextension)
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SHLIB_libxenctrl = $(SHDEPS_libxenctrl) -Wl,-rpath-link=$(XEN_LIBXC)
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CFLAGS_libxenguest = -I$(XEN_LIBXC)/include $(CFLAGS_xeninclude)
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SHDEPS_libxenguest =
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LDLIBS_libxenguest = $(SHDEPS_libxenguest) $(XEN_LIBXC)/libxenguest$(libextension)
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SHLIB_libxenguest = $(SHDEPS_libxenguest) -Wl,-rpath-link=$(XEN_LIBXC)
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CFLAGS_libxenstore = -I$(XEN_XENSTORE)/include $(CFLAGS_xeninclude)
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SHDEPS_libxenstore =
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LDLIBS_libxenstore = $(SHDEPS_libxenguest) $(XEN_XENSTORE)/libxenstore$(libextension)
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SHLIB_libxenstore = $(SHDEPS_libxenguest) -Wl,-rpath-link=$(XEN_XENSTORE)
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CFLAGS_libxenstat = -I$(XEN_LIBXENSTAT)
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SHDEPS_libxenstat = $(SHLIB_libxenctrl) $(SHLIB_libxenstore)
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LDLIBS_libxenstat = $(SHDEPS_libxenstat) $(XEN_LIBXENSTAT)/libxenstat$(libextension)
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SHLIB_libxenstat = $(SHDEPS_libxenstat) -Wl,-rpath-link=$(XEN_LIBXENSTAT)
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CFLAGS_libxenvchan = -I$(XEN_LIBVCHAN)
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SHDEPS_libxenvchan = $(SHLIB_libxenctrl) $(SHLIB_libxenstore)
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LDLIBS_libxenvchan = $(SHDEPS_libxenvchan) $(XEN_LIBVCHAN)/libxenvchan$(libextension)
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SHLIB_libxenvchan = $(SHDEPS_libxenvchan) -Wl,-rpath-link=$(XEN_LIBVCHAN)
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ifeq ($(debug),y)
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# Disable optimizations and enable debugging information for macros
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CFLAGS += -O0 -g3
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# But allow an override to -O0 in case Python enforces -D_FORTIFY_SOURCE=<n>.
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PY_CFLAGS += $(PY_NOOPT_CFLAGS)
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endif
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LIBXL_BLKTAP ?= $(CONFIG_BLKTAP2)
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ifeq ($(LIBXL_BLKTAP),y)
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CFLAGS_libblktapctl = -I$(XEN_BLKTAP2)/control -I$(XEN_BLKTAP2)/include $(CFLAGS_xeninclude)
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SHDEPS_libblktapctl =
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LDLIBS_libblktapctl = $(SHDEPS_libblktapctl) $(XEN_BLKTAP2)/control/libblktapctl$(libextension)
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SHLIB_libblktapctl = $(SHDEPS_libblktapctl) -Wl,-rpath-link=$(XEN_BLKTAP2)/control
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else
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CFLAGS_libblktapctl =
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SHDEPS_libblktapctl =
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LDLIBS_libblktapctl =
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SHLIB_libblktapctl =
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endif
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CFLAGS_libxenlight = -I$(XEN_XENLIGHT) $(CFLAGS_libxenctrl) $(CFLAGS_xeninclude)
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SHDEPS_libxenlight = $(SHLIB_libxenctrl) $(SHLIB_libxenstore) $(SHLIB_libblktapctl)
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LDLIBS_libxenlight = $(SHDEPS_libxenlight) $(XEN_XENLIGHT)/libxenlight$(libextension)
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SHLIB_libxenlight = $(SHDEPS_libxenlight) -Wl,-rpath-link=$(XEN_XENLIGHT)
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CFLAGS += -D__XEN_TOOLS__
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# Get gcc to generate the dependencies for us.
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CFLAGS += -MMD -MF .$(if $(filter-out .,$(@D)),$(subst /,@,$(@D))@)$(@F).d
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DEPS = .*.d
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ifneq ($(FILE_OFFSET_BITS),)
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CFLAGS += -D_FILE_OFFSET_BITS=$(FILE_OFFSET_BITS)
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endif
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ifneq ($(XEN_OS),NetBSD)
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# Enable implicit LFS support *and* explicit LFS names.
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CFLAGS += -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
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endif
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# 32-bit x86 does not perform well with -ve segment accesses on Xen.
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CFLAGS-$(CONFIG_X86_32) += $(call cc-option,$(CC),-mno-tls-direct-seg-refs)
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CFLAGS += $(CFLAGS-y)
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CFLAGS += $(EXTRA_CFLAGS_XEN_TOOLS)
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INSTALL_PYTHON_PROG = \
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$(XEN_ROOT)/tools/python/install-wrap "$(PYTHON_PATH)" $(INSTALL_PROG)
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%.opic: %.c
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$(CC) $(CPPFLAGS) -DPIC $(CFLAGS) $(CFLAGS_$*.opic) -fPIC -c -o $@ $< $(APPEND_CFLAGS)
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%.o: %.c
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$(CC) $(CPPFLAGS) $(CFLAGS) $(CFLAGS_$*.o) -c -o $@ $< $(APPEND_CFLAGS)
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%.o: %.cc
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$(CC) $(CPPFLAGS) $(CXXFLAGS) $(CXXFLAGS_$*.o) -c -o $@ $< $(APPEND_CFLAGS)
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%.o: %.S
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$(CC) $(CFLAGS) $(CFLAGS_$*.o) -c $< -o $@ $(APPEND_CFLAGS)
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%.opic: %.S
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$(CC) $(CPPFLAGS) -DPIC $(CFLAGS) $(CFLAGS.opic) -fPIC -c -o $@ $< $(APPEND_CFLAGS)
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subdirs-all subdirs-clean subdirs-install subdirs-distclean: .phony
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@set -e; for subdir in $(SUBDIRS) $(SUBDIRS-y); do \
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$(MAKE) subdir-$(patsubst subdirs-%,%,$@)-$$subdir; \
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done
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subdir-all-% subdir-clean-% subdir-install-%: .phony
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$(MAKE) -C $* $(patsubst subdir-%-$*,%,$@)
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subdir-distclean-%: .phony
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$(MAKE) -C $* distclean
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ifeq (,$(findstring clean,$(MAKECMDGOALS)))
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$(XEN_ROOT)/config/Tools.mk:
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$(error You have to run ./configure before building or installing the tools)
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endif
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