mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 10:11:27 +01:00
Ian Campbell
3237645813
Currently __XEN_TOOLS__ is defined in the global CFLAGS used for tools builds, exposing them all to the various unstable hypercall interfaces. However there are places where we do not want this (in particular all the stable libraries now under tools/libs), and there is a risk of such uses slipping in unnoticed (currently there are none, but I tripped over the mixed nature of the HVMOPs just now in some new code I was putting together). Instead only define __XEN_TOOLS__ for things which explicitly want the unstable APIs. The vast majority of these are consumers of libxenctrl, which have opted into unstable interfaces by using libxenctrl already, so adding -D__XEN_TOOLS__ to CFLAGS_libxenctrl covers these without needing to patch the dozen or so tools manually. The libxc build itself, which doesn't use CFLAGS_libxenctrl, now needs the define too. As does gdbsx's own low level hypercall binding library xg. hvmloader no longer needs to undefine the symbol. The ocaml evtchn bindings don't actually need sysctl.h and therefore don't actually need __XEN_TOOLS__ either. qemu-xen-traditional doesn't use CFLAGS_libxenctrl and so we pass the define there (via --extra-cflags) too. Having removed __XEN_TOOLS__ replace it with __XEN_INTERFACE_VERSION__=__XEN_LATEST_INTERFACE_VERSION__ so that in tree code is always using the latest APIs. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
224 lines
8.9 KiB
Makefile
224 lines
8.9 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_LIBXENEVTCHN = $(XEN_ROOT)/tools/libs/evtchn
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XEN_LIBXENGNTTAB = $(XEN_ROOT)/tools/libs/gnttab
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XEN_LIBXENCALL = $(XEN_ROOT)/tools/libs/call
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XEN_LIBXENFOREIGNMEMORY = $(XEN_ROOT)/tools/libs/foreignmemory
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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=$(XEN_LIBXENTOOLLOG)
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CFLAGS_libxenevtchn = -I$(XEN_LIBXENEVTCHN)/include $(CFLAGS_xeninclude)
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SHDEPS_libxenevtchn =
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LDLIBS_libxenevtchn = $(XEN_LIBXENEVTCHN)/libxenevtchn$(libextension)
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SHLIB_libxenevtchn = -Wl,-rpath-link=$(XEN_LIBXENEVTCHN)
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CFLAGS_libxengnttab = -I$(XEN_LIBXENGNTTAB)/include $(CFLAGS_xeninclude)
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LDLIBS_libxengnttab = $(XEN_LIBXENGNTTAB)/libxengnttab$(libextension)
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SHLIB_libxengnttab = -Wl,-rpath-link=$(XEN_LIBXENGNTTAB)
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# xengntshr_* interfaces are actually part of libxengnttab.so
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CFLAGS_libxengntshr = -I$(XEN_LIBXENGNTTAB)/include $(CFLAGS_xeninclude)
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LDLIBS_libxengntshr = $(XEN_LIBXENGNTTAB)/libxengnttab$(libextension)
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SHLIB_libxengntshr = -Wl,-rpath-link=$(XEN_LIBXENGNTTAB)
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CFLAGS_libxencall = -I$(XEN_LIBXENCALL)/include $(CFLAGS_xeninclude)
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LDLIBS_libxencall = $(XEN_LIBXENCALL)/libxencall$(libextension)
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SHLIB_libxencall = -Wl,-rpath-link=$(XEN_LIBXENCALL)
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CFLAGS_libxenforeignmemory = -I$(XEN_LIBXENFOREIGNMEMORY)/include $(CFLAGS_xeninclude)
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LDLIBS_libxenforeignmemory = $(XEN_LIBXENFOREIGNMEMORY)/libxenforeignmemory$(libextension)
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SHLIB_libxenforeignmemory = -Wl,-rpath-link=$(XEN_LIBXENFOREIGNMEMORY)
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# code which compiles against libxenctrl get __XEN_TOOLS__ and
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# therefore sees the unstable hypercall interfaces.
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CFLAGS_libxenctrl = -I$(XEN_LIBXC)/include $(CFLAGS_libxentoollog) $(CFLAGS_libxenforeignmemory) $(CFLAGS_xeninclude) -D__XEN_TOOLS__
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SHDEPS_libxenctrl = $(SHLIB_libxentoollog) $(SHLIB_libxenevtchn) $(SHLIB_libxengnttab) $(SHLIB_libxengntshr) $(SHLIB_libxencall) $(SHLIB_libxenforeignmemory)
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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_libxenevtchn) $(CFLAGS_libxenforeignmemory) $(CFLAGS_xeninclude)
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SHDEPS_libxenguest = $(SHLIB_libxenevtchn)
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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_libxentoollog) $(SHLIB_libxenstore) $(SHLIB_libxenevtchn) $(SHLIB_libxengnttab) $(SHLIB_libxengntshr)
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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_INTERFACE_VERSION__=__XEN_LATEST_INTERFACE_VERSION__
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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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headers.chk:
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for i in $(filter %.h,$^); do \
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$(CC) -x c -ansi -Wall -Werror $(CFLAGS_xeninclude) \
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-S -o /dev/null $$i || exit 1; \
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echo $$i; \
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done >$@.new
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mv $@.new $@
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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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