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0aeacaa0c95beddbc054ef5a70845e3e4cf4f385
xen/tools/libxl/Makefile
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Anthony PERARD 5e2d477993 libxl: Add optimisation to ev_lock 
It will often be the case that the lock is free to grab. So we first
try to grab it before we have to fork. Even though in this case the
locks are grabbed in the wrong order in the lock hierarchy (ev_lock
should be outside of CTX_LOCK), it is fine to try without blocking. If
that failed, we will release CTX_LOCK and try to grab both lock again
in the right order.

That optimisation is only enabled in releases (debug=n) so the more
complicated code with fork is actually exercised.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
2019-09-19 12:24:56 +01:00

357 lines
13 KiB
Makefile
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#
# tools/libxl/Makefile
#
XEN_ROOT = $(CURDIR)/../..
include $(XEN_ROOT)/tools/Rules.mk
MAJOR = 4.13
MINOR = 0
XLUMAJOR = 4.13
XLUMINOR = 0
CFLAGS += -Werror -Wno-format-zero-length -Wmissing-declarations \
-Wno-declaration-after-statement -Wformat-nonliteral
CFLAGS += -I. -fPIC
ifeq ($(CONFIG_Linux),y)
LIBUUID_LIBS += -luuid
endif
LIBXL_LIBS =
LIBXL_LIBS = $(LDLIBS_libxentoollog) $(LDLIBS_libxenevtchn) $(LDLIBS_libxenctrl) $(LDLIBS_libxenguest) $(LDLIBS_libxenstore) $(LDLIBS_libxentoolcore) $(PTYFUNCS_LIBS) $(LIBUUID_LIBS)
ifeq ($(CONFIG_LIBNL),y)
LIBXL_LIBS += $(LIBNL3_LIBS)
endif
CFLAGS_LIBXL += $(CFLAGS_libxentoollog)
CFLAGS_LIBXL += $(CFLAGS_libxentoolcore)
CFLAGS_LIBXL += $(CFLAGS_libxenevtchn)
CFLAGS_LIBXL += $(CFLAGS_libxenctrl)
CFLAGS_LIBXL += $(CFLAGS_libxenguest)
CFLAGS_LIBXL += $(CFLAGS_libxenstore)
ifeq ($(CONFIG_LIBNL),y)
CFLAGS_LIBXL += $(LIBNL3_CFLAGS)
endif
CFLAGS_LIBXL += -Wshadow
ifeq ($(debug),y)
CFLAGS_LIBXL += -DCONFIG_DEBUG
endif
LIBXL_LIBS-$(CONFIG_ARM) += -lfdt
CFLAGS += $(PTHREAD_CFLAGS)
LDFLAGS += $(PTHREAD_LDFLAGS)
LIBXL_LIBS += $(PTHREAD_LIBS)
LIBXL_LIBS += $(LIBXL_LIBS-y)
LIBXLU_LIBS = $(LDLIBS_libxenlight)
LIBXL_OBJS-y = osdeps.o libxl_paths.o libxl_bootloader.o flexarray.o
ifeq ($(CONFIG_LIBNL),y)
LIBXL_OBJS-y += libxl_netbuffer.o
else
LIBXL_OBJS-y += libxl_nonetbuffer.o
endif
ifeq ($(CONFIG_X86),y)
LIBXL_OBJS-y += libxl_convert_callout.o
else
LIBXL_OBJS-y += libxl_no_convert_callout.o
endif
LIBXL_OBJS-y += libxl_remus.o libxl_checkpoint_device.o libxl_remus_disk_drbd.o
ifeq ($(CONFIG_LIBNL),y)
LIBXL_OBJS-y += libxl_colo_restore.o libxl_colo_save.o
LIBXL_OBJS-y += libxl_colo_qdisk.o
LIBXL_OBJS-y += libxl_colo_proxy.o
LIBXL_OBJS-y += libxl_colo_nic.o
else
LIBXL_OBJS-y += libxl_no_colo.o
endif
ACPI_PATH = $(XEN_ROOT)/tools/libacpi
DSDT_FILES-$(CONFIG_X86) = dsdt_pvh.c
ACPI_OBJS = $(patsubst %.c,%.o,$(DSDT_FILES-y)) build.o static_tables.o
$(DSDT_FILES-y): acpi
$(ACPI_OBJS): CFLAGS += -I. -DLIBACPI_STDUTILS=\"$(CURDIR)/libxl_x86_acpi.h\"
vpath build.c $(ACPI_PATH)/
vpath static_tables.c $(ACPI_PATH)/
LIBXL_OBJS-$(CONFIG_X86) += $(ACPI_OBJS)
.PHONY: acpi
acpi:
$(MAKE) -C $(ACPI_PATH) ACPI_BUILD_DIR=$(CURDIR) DSDT_FILES="$(DSDT_FILES-y)"
LIBXL_OBJS-$(CONFIG_X86) += libxl_cpuid.o libxl_x86.o libxl_psr.o libxl_x86_acpi.o
LIBXL_OBJS-$(CONFIG_ARM) += libxl_nocpuid.o libxl_arm.o libxl_libfdt_compat.o
ifeq ($(CONFIG_ARM_64),y)
DSDT_FILES-y = dsdt_anycpu_arm.c
LIBXL_OBJS-y += libxl_arm_acpi.o $(patsubst %.c,%.o,$(DSDT_FILES-y))
dsdt_anycpu_arm.c:
$(MAKE) -C $(ACPI_PATH) ACPI_BUILD_DIR=$(CURDIR) DSDT_FILES="$(DSDT_FILES-y)"
else
LIBXL_OBJS-$(CONFIG_ARM) += libxl_arm_no_acpi.o
endif
ifeq ($(CONFIG_NetBSD),y)
LIBXL_OBJS-y += libxl_netbsd.o
else
ifeq ($(CONFIG_Linux),y)
LIBXL_OBJS-y += libxl_linux.o
else
ifeq ($(CONFIG_FreeBSD),y)
LIBXL_OBJS-y += libxl_freebsd.o
else
$(error Your Operating System is not supported by libxenlight, \
please check libxl_linux.c and libxl_netbsd.c to see how to get it ported)
endif
endif
endif
ifeq ($(FLEX),)
%.c %.h:: %.l
$(warning Flex is needed to rebuild some libxl parsers and \
scanners, please install it and rerun configure)
endif
ifeq ($(BISON),)
%.c %.h:: %.y
$(warning Bison is needed to rebuild some libxl parsers and \
scanners, please install it an rerun configure)
endif
LIBXL_LIBS += -lyajl
LIBXL_OBJS = flexarray.o libxl.o libxl_create.o libxl_dm.o libxl_pci.o \
libxl_dom.o libxl_exec.o libxl_xshelp.o libxl_device.o \
libxl_internal.o libxl_utils.o libxl_uuid.o \
libxl_json.o libxl_aoutils.o libxl_numa.o libxl_vnuma.o \
libxl_stream_read.o libxl_stream_write.o \
libxl_save_callout.o _libxl_save_msgs_callout.o \
libxl_qmp.o libxl_event.o libxl_fork.o \
libxl_dom_suspend.o libxl_dom_save.o libxl_usb.o \
libxl_vtpm.o libxl_nic.o libxl_disk.o libxl_console.o \
libxl_cpupool.o libxl_mem.o libxl_sched.o libxl_tmem.o \
libxl_9pfs.o libxl_domain.o libxl_vdispl.o \
libxl_pvcalls.o libxl_vsnd.o libxl_vkb.o $(LIBXL_OBJS-y)
LIBXL_OBJS += libxl_genid.o
LIBXL_OBJS += _libxl_types.o libxl_flask.o _libxl_types_internal.o
LIBXL_TESTS += timedereg
LIBXL_TESTS_PROGS = $(LIBXL_TESTS) fdderegrace
LIBXL_TESTS_INSIDE = $(LIBXL_TESTS) fdevent
# Each entry FOO in LIBXL_TESTS has two main .c files:
# libxl_test_FOO.c "inside libxl" code to support the test case
# test_FOO.c "outside libxl" code to exercise the test case
# Conventionally there will also be:
# libxl_test_FOO.h interface between the "inside" and "outside" parts
# The "inside libxl" file is compiled exactly like a piece of libxl, and the
# "outside libxl" file is compiled exactly like a piece of application
# code. They must share information via explicit libxl entrypoints.
# Unlike proper parts of libxl, it is permissible for libxl_test_FOO.c
# to use private global variables for its state. Note that all the
# "inside" parts are compiled into a single test library, so their
# symbol names must be unique.
#
# To run these tests, either use LD_PRELOAD to get libxenlight_test.so
# loaded, or rename it to libxenlight.so so it is the target of the
# appropriate symlinks.
LIBXL_TEST_OBJS += $(foreach t, $(LIBXL_TESTS_INSIDE),libxl_test_$t.o)
TEST_PROG_OBJS += $(foreach t, $(LIBXL_TESTS_PROGS),test_$t.o) test_common.o
TEST_PROGS += $(foreach t, $(LIBXL_TESTS_PROGS),test_$t)
$(LIBXL_OBJS) $(LIBXL_TEST_OBJS): CFLAGS += $(CFLAGS_LIBXL) -include $(XEN_ROOT)/tools/config.h
AUTOINCS= libxlu_cfg_y.h libxlu_cfg_l.h _libxl_list.h _paths.h \
libxlu_disk_l.h _libxl_save_msgs_callout.h _libxl_save_msgs_helper.h
AUTOSRCS= libxlu_cfg_y.c libxlu_cfg_l.c
AUTOSRCS += _libxl_save_msgs_callout.c _libxl_save_msgs_helper.c
LIBXLU_OBJS = libxlu_cfg_y.o libxlu_cfg_l.o libxlu_cfg.o \
libxlu_disk_l.o libxlu_disk.o libxlu_vif.o libxlu_pci.o
$(LIBXLU_OBJS): CFLAGS += $(CFLAGS_libxenctrl) # For xentoollog.h
$(TEST_PROG_OBJS) _libxl.api-for-check: CFLAGS += $(CFLAGS_libxentoollog) $(CFLAGS_libxentoolcore)
CLIENTS = testidl libxl-save-helper
libxl_dom.o: CFLAGS += -I$(XEN_ROOT)/tools # include libacpi/x86.h
libxl_x86_acpi.o: CFLAGS += -I$(XEN_ROOT)/tools
SAVE_HELPER_OBJS = libxl_save_helper.o _libxl_save_msgs_helper.o
$(SAVE_HELPER_OBJS): CFLAGS += $(CFLAGS_libxenctrl) $(CFLAGS_libxenevtchn)
PKG_CONFIG = xenlight.pc xlutil.pc
PKG_CONFIG_VERSION := $(MAJOR).$(MINOR)
ifneq ($(CONFIG_LIBXC_MINIOS),y)
PKG_CONFIG_INST := $(PKG_CONFIG)
xenlight.pc: PKG_CONFIG_VERSION = $(MAJOR).$(MINOR)
xlutil.pc: PKG_CONFIG_VERSION = $(XLUMAJOR).$(XLUMINOR)
$(PKG_CONFIG_INST): PKG_CONFIG_PREFIX = $(prefix)
$(PKG_CONFIG_INST): PKG_CONFIG_INCDIR = $(includedir)
$(PKG_CONFIG_INST): PKG_CONFIG_LIBDIR = $(libdir)
endif
PKG_CONFIG_LOCAL := $(foreach pc,$(PKG_CONFIG),$(PKG_CONFIG_DIR)/$(pc))
$(PKG_CONFIG_DIR)/xenlight.pc: PKG_CONFIG_VERSION = $(MAJOR).$(MINOR)
$(PKG_CONFIG_DIR)/xlutil.pc: PKG_CONFIG_VERSION = $(XLUMAJOR).$(XLUMINOR)
$(PKG_CONFIG_LOCAL): PKG_CONFIG_PREFIX = $(XEN_ROOT)
$(PKG_CONFIG_LOCAL): PKG_CONFIG_INCDIR = $(CURDIR)
$(PKG_CONFIG_LOCAL): PKG_CONFIG_LIBDIR = $(CURDIR)
$(PKG_CONFIG_LOCAL): PKG_CONFIG_CFLAGS_LOCAL = $(CFLAGS_xeninclude)
testidl.o: CFLAGS += $(CFLAGS_libxenctrl) $(CFLAGS_libxenlight)
testidl.c: libxl_types.idl gentest.py libxl.h $(AUTOINCS)
$(PYTHON) gentest.py libxl_types.idl testidl.c.new
mv testidl.c.new testidl.c
.PHONY: all
all: $(CLIENTS) $(TEST_PROGS) $(PKG_CONFIG) $(PKG_CONFIG_LOCAL) \
libxenlight.so libxenlight.a libxlutil.so libxlutil.a \
$(AUTOSRCS) $(AUTOINCS)
$(LIBXL_OBJS) $(LIBXLU_OBJS) $(SAVE_HELPER_OBJS) \
$(LIBXL_TEST_OBJS) $(TEST_PROG_OBJS): \
$(AUTOINCS) libxl.api-ok
%.c %.h:: %.y
@rm -f $*.[ch]
$(BISON) --output=$*.c $<
%.c %.h:: %.l
@rm -f $*.[ch]
$(FLEX) --header-file=$*.h --outfile=$*.c $<
genpath-target = $(call buildmakevars2header,_paths.h)
$(eval $(genpath-target))
libxl.api-ok: check-libxl-api-rules _libxl.api-for-check
$(PERL) $^
touch $@
_%.api-for-check: %.h $(AUTOINCS)
$(CC) $(CPPFLAGS) $(CFLAGS) $(CFLAGS_$*.o) -c -E $< $(APPEND_CFLAGS) \
-DLIBXL_EXTERNAL_CALLERS_ONLY=LIBXL_EXTERNAL_CALLERS_ONLY \
>$@.new
mv -f $@.new $@
_libxl_list.h: $(XEN_INCLUDE)/xen-external/bsd-sys-queue-h-seddery $(XEN_INCLUDE)/xen-external/bsd-sys-queue.h
$(PERL) $^ --prefix=libxl >$@.new
$(call move-if-changed,$@.new,$@)
_libxl_save_msgs_helper.c _libxl_save_msgs_callout.c \
_libxl_save_msgs_helper.h _libxl_save_msgs_callout.h: \
libxl_save_msgs_gen.pl
$(PERL) -w $< $@ >$@.new
$(call move-if-changed,$@.new,$@)
libxl.h: _libxl_types.h _libxl_list.h
libxl_json.h: _libxl_types_json.h
libxl_internal.h: _libxl_types_internal.h _libxl_types_private.h _libxl_types_internal_private.h _paths.h
libxl_internal_json.h: _libxl_types_internal_json.h
xl.h: _paths.h
$(LIBXL_OBJS) $(LIBXL_TEST_OBJS) $(LIBXLU_OBJS) \
$(TEST_PROG_OBJS) $(SAVE_HELPER_OBJS): libxl.h
$(LIBXL_OBJS) $(LIBXL_TEST_OBJS): libxl_internal.h
_libxl_type%.h _libxl_type%_json.h _libxl_type%_private.h _libxl_type%.c: libxl_type%.idl gentypes.py idl.py
$(eval stem = $(notdir $*))
$(PYTHON) gentypes.py libxl_type$(stem).idl __libxl_type$(stem).h __libxl_type$(stem)_private.h \
__libxl_type$(stem)_json.h __libxl_type$(stem).c
$(call move-if-changed,__libxl_type$(stem).h,_libxl_type$(stem).h)
$(call move-if-changed,__libxl_type$(stem)_private.h,_libxl_type$(stem)_private.h)
$(call move-if-changed,__libxl_type$(stem)_json.h,_libxl_type$(stem)_json.h)
$(call move-if-changed,__libxl_type$(stem).c,_libxl_type$(stem).c)
libxenlight.so: libxenlight.so.$(MAJOR)
$(SYMLINK_SHLIB) $< $@
libxenlight.so.$(MAJOR): libxenlight.so.$(MAJOR).$(MINOR)
$(SYMLINK_SHLIB) $< $@
libxenlight.so.$(MAJOR).$(MINOR): $(LIBXL_OBJS)
$(CC) $(LDFLAGS) -Wl,$(SONAME_LDFLAG) -Wl,libxenlight.so.$(MAJOR) $(SHLIB_LDFLAGS) -o $@ $^ $(LIBXL_LIBS) $(APPEND_LDFLAGS)
libxenlight_test.so: $(LIBXL_OBJS) $(LIBXL_TEST_OBJS)
$(CC) $(LDFLAGS) -Wl,$(SONAME_LDFLAG) -Wl,libxenlight.so.$(MAJOR) $(SHLIB_LDFLAGS) -o $@ $^ $(LIBXL_LIBS) $(APPEND_LDFLAGS)
libxenlight.a: $(LIBXL_OBJS)
$(AR) rcs libxenlight.a $^
libxlutil.so: libxlutil.so.$(XLUMAJOR)
$(SYMLINK_SHLIB) $< $@
libxlutil.so.$(XLUMAJOR): libxlutil.so.$(XLUMAJOR).$(XLUMINOR)
$(SYMLINK_SHLIB) $< $@
libxlutil.so.$(XLUMAJOR).$(XLUMINOR): $(LIBXLU_OBJS) libxenlight.so
$(CC) $(LDFLAGS) -Wl,$(SONAME_LDFLAG) -Wl,libxlutil.so.$(XLUMAJOR) $(SHLIB_LDFLAGS) -o $@ $(LIBXLU_OBJS) $(LIBXLU_LIBS) $(APPEND_LDFLAGS)
libxlutil.a: $(LIBXLU_OBJS)
$(AR) rcs libxlutil.a $^
test_%: test_%.o test_common.o libxlutil.so libxenlight_test.so
$(CC) $(LDFLAGS) -o $@ $^ $(filter-out %libxenlight.so, $(LDLIBS_libxenlight)) $(LDLIBS_libxentoollog) $(LDLIBS_libxentoolcore) -lyajl $(APPEND_LDFLAGS)
libxl-save-helper: $(SAVE_HELPER_OBJS) libxenlight.so
$(CC) $(LDFLAGS) -o $@ $(SAVE_HELPER_OBJS) $(LDLIBS_libxentoollog) $(LDLIBS_libxenctrl) $(LDLIBS_libxenguest) $(LDLIBS_libxentoolcore) $(APPEND_LDFLAGS)
testidl: testidl.o libxlutil.so libxenlight.so
$(CC) $(LDFLAGS) -o $@ testidl.o libxlutil.so $(LDLIBS_libxenlight) $(LDLIBS_libxentoollog) $(LDLIBS_libxentoolcore) $(APPEND_LDFLAGS)
.PHONY: install
install: all
$(INSTALL_DIR) $(DESTDIR)$(libdir)
$(INSTALL_DIR) $(DESTDIR)$(includedir)
$(INSTALL_DIR) $(DESTDIR)$(LIBEXEC_BIN)
$(INSTALL_PROG) libxl-save-helper $(DESTDIR)$(LIBEXEC_BIN)
$(INSTALL_SHLIB) libxenlight.so.$(MAJOR).$(MINOR) $(DESTDIR)$(libdir)
$(SYMLINK_SHLIB) libxenlight.so.$(MAJOR).$(MINOR) $(DESTDIR)$(libdir)/libxenlight.so.$(MAJOR)
$(SYMLINK_SHLIB) libxenlight.so.$(MAJOR) $(DESTDIR)$(libdir)/libxenlight.so
$(INSTALL_DATA) libxenlight.a $(DESTDIR)$(libdir)
$(INSTALL_SHLIB) libxlutil.so.$(XLUMAJOR).$(XLUMINOR) $(DESTDIR)$(libdir)
$(SYMLINK_SHLIB) libxlutil.so.$(XLUMAJOR).$(XLUMINOR) $(DESTDIR)$(libdir)/libxlutil.so.$(XLUMAJOR)
$(SYMLINK_SHLIB) libxlutil.so.$(XLUMAJOR) $(DESTDIR)$(libdir)/libxlutil.so
$(INSTALL_DATA) libxlutil.a $(DESTDIR)$(libdir)
$(INSTALL_DATA) libxl.h libxl_event.h libxl_json.h _libxl_types.h _libxl_types_json.h _libxl_list.h libxl_utils.h libxl_uuid.h libxlutil.h $(DESTDIR)$(includedir)
$(INSTALL_DATA) xenlight.pc $(DESTDIR)$(PKG_INSTALLDIR)
$(INSTALL_DATA) xlutil.pc $(DESTDIR)$(PKG_INSTALLDIR)
.PHONY: uninstall
uninstall:
rm -f $(addprefix $(DESTDIR)$(PKG_INSTALLDIR)/,xlutil.pc xenlight.pc)
rm -f $(addprefix $(DESTDIR)$(includedir)/,libxl.h libxl_event.h libxl_json.h _libxl_types.h _libxl_types_json.h _libxl_list.h libxl_utils.h libxl_uuid.h libxlutil.h)
rm -f $(DESTDIR)$(libdir)/libxlutil.a
rm -f $(DESTDIR)$(libdir)/libxlutil.so
rm -f $(DESTDIR)$(libdir)/libxlutil.so.$(XLUMAJOR)
rm -f $(DESTDIR)$(libdir)/libxlutil.so.$(XLUMAJOR).$(XLUMINOR)
rm -f $(DESTDIR)$(libdir)/libxenlight.a
rm -f $(DESTDIR)$(libdir)/libxenlight.so
rm -f $(DESTDIR)$(libdir)/libxenlight.so.$(MAJOR)
rm -f $(DESTDIR)$(libdir)/libxenlight.so.$(MAJOR).$(MINOR)
rm -f $(DESTDIR)$(LIBEXEC_BIN)/libxl-save-helper
.PHONY: clean
clean:
$(RM) -f _*.h *.o *.so* *.a $(CLIENTS) $(DEPS_RM)
$(RM) -f _*.c *.pyc _paths.*.tmp _*.api-for-check
$(RM) -f testidl.c.new testidl.c *.api-ok
$(RM) -f xenlight.pc
$(RM) -f xlutil.pc
$(MAKE) -C $(ACPI_PATH) ACPI_BUILD_DIR=$(CURDIR) clean
distclean: clean
realclean: distclean
$(RM) -f $(AUTOSRCS) $(AUTOINCS)
-include $(DEPS_INCLUDE)
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