mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 02:01:24 +01:00
Ian Campbell
a71ad0fead
libxengnttab will provide a stable API and ABI for accessing the
grant table devices.
The functions are moved into the xengnt{tab,shr} namespace to make a
clean break from libxc and avoid ambiguity regarding which interfaces
are stable.
All in-tree users are updated to use the new names.
Upon request (via #define XC_WANT_COMPAT_GNTTAB_API) libxenctrl will
provide a compat API for the old names. This is used by qemu-xen for
the time being. qemu-xen-traditional is updated in lockstep.
This leaves a few grant table related functions which go via privcmd
(GNTTABOP) rather than ioctls on the /dev/xen/gnt* devices in
libxenctrl. Specifically:
- xc_gnttab_get_version
- xc_gnttab_map_table_v1
- xc_gnttab_map_table_v2
- xc_gnttab_op
These functions do not appear to be needed by qemu-dm, qemu-pv
(provision of device model to HVM guests and PV backends respectively)
or by libvchan suggesting they are not needed by non-toolstack uses of
event channels.
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.
After this change libxenvchan no longer needs to link against
libxenctrl. It still needs xenctrl.h in one file for xen_mb and
friends.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
[ ijc -- updated MINIOS_UPSTREAM_REVISION and QEMU_TRADITIONAL_REVISION ]
212 lines
8.1 KiB
Makefile
212 lines
8.1 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_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=$(XEN_LIBXENGNTTAB)
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CFLAGS_libxenctrl = -I$(XEN_LIBXC)/include $(CFLAGS_libxentoollog) $(CFLAGS_xeninclude)
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SHDEPS_libxenctrl = $(SHLIB_libxentoollog) $(SHLIB_libxenevtchn) $(SHLIB_libxengnttab) $(SHLIB_libxengntshr)
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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_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_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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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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