Xen project Mailing List

[PATCH 11/12] tools: split libxenstat into new tools/libs/stat directory

From: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>

Date: Wed, 15 Jul 2020 17:25:10 +0100

Cc: Juergen Gross <jgross@xxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Wei Liu <wl@xxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, ian.jackson@xxxxxxxxxxxxx, George Dunlap <george.dunlap@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>

Delivery-date: Wed, 15 Jul 2020 16:55:47 +0000

List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

From: Juergen Gross <jgross@xxxxxxxx> There is no reason why libxenstat is not placed in the tools/libs directory. At the same time move xenstat.h to a dedicated include directory in tools/libs/stat in order to follow the same pattern as the other libraries in tools/libs. As now xentop is the only left directory in xenstat move it directly under tools and get rid of tools/xenstat. Fix some missing prototype errors (add one prototype and make two functions static). Signed-off-by: Juergen Gross <jgross@xxxxxxxx> --- .gitignore | 7 +- tools/Makefile | 2 +- tools/Rules.mk | 4 +- tools/libs/Makefile | 1 + .../{xenstat/libxenstat => libs/stat}/COPYING | 0 .../libxenstat => libs/stat}/Makefile | 98 ++++--------------- .../stat}/bindings/swig/perl/.empty | 0 .../stat}/bindings/swig/python/.empty | 0 .../stat}/bindings/swig/xenstat.i | 0 .../src => libs/stat/include}/xenstat.h | 3 + tools/libs/stat/libxenstat.map | 54 ++++++++++ .../libxenstat/src => libs/stat}/xenstat.c | 0 .../libxenstat => libs/stat}/xenstat.pc.in | 2 +- .../src => libs/stat}/xenstat_freebsd.c | 0 .../src => libs/stat}/xenstat_linux.c | 4 +- .../src => libs/stat}/xenstat_netbsd.c | 0 .../src => libs/stat}/xenstat_priv.h | 0 .../src => libs/stat}/xenstat_qmp.c | 0 .../src => libs/stat}/xenstat_solaris.c | 0 tools/xenstat/Makefile | 10 -- tools/{xenstat => }/xentop/Makefile | 2 +- tools/{xenstat => }/xentop/TODO | 0 tools/{xenstat => }/xentop/xentop.c | 0 23 files changed, 90 insertions(+), 97 deletions(-) rename tools/{xenstat/libxenstat => libs/stat}/COPYING (100%) rename tools/{xenstat/libxenstat => libs/stat}/Makefile (56%) rename tools/{xenstat/libxenstat => libs/stat}/bindings/swig/perl/.empty (100%) rename tools/{xenstat/libxenstat => libs/stat}/bindings/swig/python/.empty (100%) rename tools/{xenstat/libxenstat => libs/stat}/bindings/swig/xenstat.i (100%) rename tools/{xenstat/libxenstat/src => libs/stat/include}/xenstat.h (98%) create mode 100644 tools/libs/stat/libxenstat.map rename tools/{xenstat/libxenstat/src => libs/stat}/xenstat.c (100%) rename tools/{xenstat/libxenstat => libs/stat}/xenstat.pc.in (82%) rename tools/{xenstat/libxenstat/src => libs/stat}/xenstat_freebsd.c (100%) rename tools/{xenstat/libxenstat/src => libs/stat}/xenstat_linux.c (98%) rename tools/{xenstat/libxenstat/src => libs/stat}/xenstat_netbsd.c (100%) rename tools/{xenstat/libxenstat/src => libs/stat}/xenstat_priv.h (100%) rename tools/{xenstat/libxenstat/src => libs/stat}/xenstat_qmp.c (100%) rename tools/{xenstat/libxenstat/src => libs/stat}/xenstat_solaris.c (100%) delete mode 100644 tools/xenstat/Makefile rename tools/{xenstat => }/xentop/Makefile (97%) rename tools/{xenstat => }/xentop/TODO (100%) rename tools/{xenstat => }/xentop/xentop.c (100%) diff --git a/.gitignore b/.gitignore index 3e130b0596..5c240c25db 100644 --- a/.gitignore +++ b/.gitignore @@ -120,6 +120,9 @@ tools/libs/foreignmemory/headers.chk tools/libs/foreignmemory/xenforeignmemory.pc tools/libs/devicemodel/headers.chk tools/libs/devicemodel/xendevicemodel.pc +tools/libs/stat/_paths.h +tools/libs/stat/headers.chk +tools/libs/stat/xenstat.pc tools/libs/store/headers.chk tools/libs/store/list.h tools/libs/store/utils.h @@ -273,9 +276,6 @@ tools/xenmon/xentrace_setmask tools/xenmon/xenbaked tools/xenpaging/xenpaging tools/xenpmd/xenpmd -tools/xenstat/libxenstat/src/_paths.h -tools/xenstat/libxenstat/xenstat.pc -tools/xenstat/xentop/xentop tools/xenstore/xenstore tools/xenstore/xenstore-chmod tools/xenstore/xenstore-exists @@ -288,6 +288,7 @@ tools/xenstore/xenstore-ls tools/xenstore/xenstored tools/xenstore/xenstored_test tools/xenstore/xs_tdb_dump +tools/xentop/xentop tools/xentrace/xentrace_setsize tools/xentrace/tbctl tools/xentrace/xenctx diff --git a/tools/Makefile b/tools/Makefile index ed119fffd7..e37b4c0f12 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -18,7 +18,7 @@ SUBDIRS-$(CONFIG_XCUTILS) += xcutils SUBDIRS-$(CONFIG_X86) += firmware SUBDIRS-y += console SUBDIRS-y += xenmon -SUBDIRS-y += xenstat +SUBDIRS-y += xentop SUBDIRS-$(CONFIG_NetBSD) += xenbackendd SUBDIRS-y += libfsimage SUBDIRS-$(CONFIG_Linux) += vchan diff --git a/tools/Rules.mk b/tools/Rules.mk index 30ee379484..279df14152 100644 --- a/tools/Rules.mk +++ b/tools/Rules.mk @@ -22,12 +22,12 @@ XEN_libxendevicemodel = $(XEN_ROOT)/tools/libs/devicemodel XEN_libxenhypfs = $(XEN_ROOT)/tools/libs/hypfs XEN_libxenctrl = $(XEN_ROOT)/tools/libs/ctrl XEN_libxenstore = $(XEN_ROOT)/tools/libs/store +XEN_libxenstat = $(XEN_ROOT)/tools/libs/stat XEN_libxenvchan = $(XEN_ROOT)/tools/libs/vchan XEN_libxenguest = $(XEN_ROOT)/tools/libxc XEN_libxenlight = $(XEN_ROOT)/tools/libxl # Currently libxlutil lives in the same directory as libxenlight XEN_libxlutil = $(XEN_libxenlight) -XEN_libxenstat = $(XEN_ROOT)/tools/xenstat/libxenstat/src CFLAGS_xeninclude = -I$(XEN_INCLUDE) @@ -158,7 +158,7 @@ ifeq ($(CONFIG_Linux),y) LDLIBS_libxenstore += -ldl endif -CFLAGS_libxenstat = -I$(XEN_libxenstat) +CFLAGS_libxenstat = -I$(XEN_libxenstat)/include SHDEPS_libxenstat = $(SHLIB_libxenctrl) $(SHLIB_libxenstore) LDLIBS_libxenstat = $(SHDEPS_libxenstat) $(XEN_libxenstat)/libxenstat$(libextension) SHLIB_libxenstat = $(SHDEPS_libxenstat) -Wl,-rpath-link=$(XEN_libxenstat) diff --git a/tools/libs/Makefile b/tools/libs/Makefile index 396116b0b3..a1985cf7a7 100644 --- a/tools/libs/Makefile +++ b/tools/libs/Makefile @@ -12,6 +12,7 @@ SUBDIRS-y += devicemodel SUBDIRS-y += ctrl SUBDIRS-y += hypfs SUBDIRS-y += store +SUBDIRS-y += stat SUBDIRS-$(CONFIG_Linux) += vchan ifeq ($(CONFIG_RUMP),y) diff --git a/tools/xenstat/libxenstat/COPYING b/tools/libs/stat/COPYING similarity index 100% rename from tools/xenstat/libxenstat/COPYING rename to tools/libs/stat/COPYING diff --git a/tools/xenstat/libxenstat/Makefile b/tools/libs/stat/Makefile similarity index 56% rename from tools/xenstat/libxenstat/Makefile rename to tools/libs/stat/Makefile index 3d05ecdd9f..6162395a9a 100644 --- a/tools/xenstat/libxenstat/Makefile +++ b/tools/libs/stat/Makefile @@ -15,80 +15,29 @@ XEN_ROOT=$(CURDIR)/../../.. include $(XEN_ROOT)/tools/Rules.mk -LDCONFIG=ldconfig -MAKE_LINK=ln -sf - -MAJOR=4.14 -MINOR=0 - -LIB=src/libxenstat.a -SHLIB=src/libxenstat.so.$(MAJOR).$(MINOR) -SHLIB_LINKS=src/libxenstat.so.$(MAJOR) src/libxenstat.so -OBJECTS-y=src/xenstat.o src/xenstat_qmp.o -OBJECTS-$(CONFIG_Linux) += src/xenstat_linux.o -OBJECTS-$(CONFIG_SunOS) += src/xenstat_solaris.o -OBJECTS-$(CONFIG_NetBSD) += src/xenstat_netbsd.o -OBJECTS-$(CONFIG_FreeBSD) += src/xenstat_freebsd.o -SONAME_FLAGS=-Wl,$(SONAME_LDFLAG) -Wl,libxenstat.so.$(MAJOR) - -CFLAGS+=-fPIC -Werror -CFLAGS+=-Isrc $(CFLAGS_libxenctrl) $(CFLAGS_libxenstore) $(CFLAGS_xeninclude) -include $(XEN_ROOT)/tools/config.h - -LDLIBS-y = $(LDLIBS_libxenstore) $(LDLIBS_libxenctrl) -lyajl -LDLIBS-$(CONFIG_SunOS) += -lkstat - -PKG_CONFIG := xenstat.pc -PKG_CONFIG_VERSION := $(MAJOR).$(MINOR) - -ifneq ($(CONFIG_LIBXC_MINIOS),y) -PKG_CONFIG_INST := $(PKG_CONFIG) -$(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)) +MAJOR = 4.14 +MINOR = 0 +LIBNAME := stat +USELIBS := ctrl store -$(PKG_CONFIG_LOCAL): PKG_CONFIG_PREFIX = $(XEN_ROOT) -$(PKG_CONFIG_LOCAL): PKG_CONFIG_INCDIR = $(XEN_libxenstat) -$(PKG_CONFIG_LOCAL): PKG_CONFIG_LIBDIR = $(CURDIR) +CFLAGS += $(CFLAGS_libxenctrl) $(CFLAGS_libxenstore) $(CFLAGS_xeninclude) -include $(XEN_ROOT)/tools/config.h -.PHONY: all -all: $(LIB) $(SHLIB) $(SHLIB_LINKS) $(PKG_CONFIG_INST) $(PKG_CONFIG_LOCAL) +SRCS-y += xenstat.c +SRCS-y += xenstat_qmp.c +SRCS-$(CONFIG_Linux) += xenstat_linux.c +SRCS-$(CONFIG_SunOS) += xenstat_solaris.c +SRCS-$(CONFIG_NetBSD) += xenstat_netbsd.c +SRCS-$(CONFIG_FreeBSD) += xenstat_freebsd.c -$(OBJECTS-y): src/_paths.h - -$(LIB): $(OBJECTS-y) - $(AR) rc $@ $^ - $(RANLIB) $@ +LDLIBS-y += -lyajl +LDLIBS-$(CONFIG_SunOS) += -lkstat +APPEND_LDFLAGS += $(LDLIBS-y) -$(SHLIB): $(OBJECTS-y) - $(CC) $(LDFLAGS) $(SONAME_FLAGS) $(SHLIB_LDFLAGS) -o $@ \ - $(OBJECTS-y) $(LDLIBS-y) $(APPEND_LDFLAGS) +include $(XEN_ROOT)/tools/libs/libs.mk -src/libxenstat.so.$(MAJOR): $(SHLIB) - $(MAKE_LINK) $(<F) $@ +$(PKG_CONFIG_LOCAL): PKG_CONFIG_INCDIR = $(XEN_libxenstat)/include -src/libxenstat.so: src/libxenstat.so.$(MAJOR) - $(MAKE_LINK) $(<F) $@ - -.PHONY: install -install: all - $(INSTALL_DATA) src/xenstat.h $(DESTDIR)$(includedir) - $(INSTALL_DATA) $(LIB) $(DESTDIR)$(libdir)/libxenstat.a - $(INSTALL_PROG) src/libxenstat.so.$(MAJOR).$(MINOR) $(DESTDIR)$(libdir) - ln -sf libxenstat.so.$(MAJOR).$(MINOR) $(DESTDIR)$(libdir)/libxenstat.so.$(MAJOR) - ln -sf libxenstat.so.$(MAJOR) $(DESTDIR)$(libdir)/libxenstat.so - $(INSTALL_DATA) xenstat.pc $(DESTDIR)$(PKG_INSTALLDIR) - -.PHONY: uninstall -uninstall: - rm -f $(DESTDIR)$(PKG_INSTALLDIR)/xenstat.pc - rm -f $(DESTDIR)$(libdir)/libxenstat.so - rm -f $(DESTDIR)$(libdir)/libxenstat.so.$(MAJOR) - rm -f $(DESTDIR)$(libdir)/libxenstat.so.$(MAJOR).$(MINOR) - rm -f $(DESTDIR)$(libdir)/libxenstat.a - rm -f $(DESTDIR)$(includedir)/xenstat.h +$(LIB_OBJS): _paths.h PYLIB=bindings/swig/python/_xenstat.so PYMOD=bindings/swig/python/xenstat.py @@ -109,9 +58,9 @@ install-bindings: install-perl-bindings install-python-bindings .PHONY: uninstall-bindings uninstall-bindings: uninstall-perl-bindings uninstall-python-bindings -$(BINDINGS): $(SHLIB) $(SHLIB_LINKS) src/xenstat.h +$(BINDINGS): $(SHLIB) $(SHLIB_LINKS) include/xenstat.h -SWIG_FLAGS=-module xenstat -Isrc +SWIG_FLAGS=-module xenstat -Iinclude -I. # Python bindings PYTHON_VERSION=$(PYTHON:python%=%) @@ -177,14 +126,9 @@ endif .PHONY: clean clean: - rm -f $(LIB) $(SHLIB) $(SHLIB_LINKS) $(OBJECTS-y) \ - $(BINDINGS) $(BINDINGSRC) $(DEPS_RM) src/_paths.h - rm -f xenstat.pc - -.PHONY: distclean -distclean: clean + rm -f $(BINDINGS) $(BINDINGSRC) $(DEPS_RM) _paths.h -include $(DEPS_INCLUDE) -genpath-target = $(call buildmakevars2header,src/_paths.h) +genpath-target = $(call buildmakevars2header,_paths.h) $(eval $(genpath-target)) diff --git a/tools/xenstat/libxenstat/bindings/swig/perl/.empty b/tools/libs/stat/bindings/swig/perl/.empty similarity index 100% rename from tools/xenstat/libxenstat/bindings/swig/perl/.empty rename to tools/libs/stat/bindings/swig/perl/.empty diff --git a/tools/xenstat/libxenstat/bindings/swig/python/.empty b/tools/libs/stat/bindings/swig/python/.empty similarity index 100% rename from tools/xenstat/libxenstat/bindings/swig/python/.empty rename to tools/libs/stat/bindings/swig/python/.empty diff --git a/tools/xenstat/libxenstat/bindings/swig/xenstat.i b/tools/libs/stat/bindings/swig/xenstat.i similarity index 100% rename from tools/xenstat/libxenstat/bindings/swig/xenstat.i rename to tools/libs/stat/bindings/swig/xenstat.i diff --git a/tools/xenstat/libxenstat/src/xenstat.h b/tools/libs/stat/include/xenstat.h similarity index 98% rename from tools/xenstat/libxenstat/src/xenstat.h rename to tools/libs/stat/include/xenstat.h index 76a660f321..c3b98909dd 100644 --- a/tools/xenstat/libxenstat/src/xenstat.h +++ b/tools/libs/stat/include/xenstat.h @@ -71,6 +71,9 @@ unsigned long long xenstat_node_tot_mem(xenstat_node * node); /* Get amount of free memory on a node */ unsigned long long xenstat_node_free_mem(xenstat_node * node); +/* Get amount of freeable memory on a node */ +long xenstat_node_freeable_mb(xenstat_node * node); + /* Find the number of domains existing on a node */ unsigned int xenstat_node_num_domains(xenstat_node * node); diff --git a/tools/libs/stat/libxenstat.map b/tools/libs/stat/libxenstat.map new file mode 100644 index 0000000000..b736d8e94c --- /dev/null +++ b/tools/libs/stat/libxenstat.map @@ -0,0 +1,54 @@ +VERS_4.14.0 { + global: + xenstat_init; + xenstat_uninit; + xenstat_get_node; + xenstat_free_node; + xenstat_node_domain; + xenstat_node_domain_by_index; + xenstat_node_xen_version; + xenstat_node_tot_mem; + xenstat_node_free_mem; + xenstat_node_freeable_mb; + xenstat_node_num_domains; + xenstat_node_num_cpus; + xenstat_node_cpu_hz; + xenstat_domain_id; + xenstat_domain_name; + xenstat_domain_cpu_ns; + xenstat_domain_num_vcpus; + xenstat_domain_vcpu; + xenstat_domain_cur_mem; + xenstat_domain_max_mem; + xenstat_domain_ssid; + xenstat_domain_dying; + xenstat_domain_crashed; + xenstat_domain_shutdown; + xenstat_domain_paused; + xenstat_domain_blocked; + xenstat_domain_running; + xenstat_domain_num_networks; + xenstat_domain_network; + xenstat_domain_num_vbds; + xenstat_domain_vbd; + xenstat_vcpu_online; + xenstat_vcpu_ns; + xenstat_network_id; + xenstat_network_rbytes; + xenstat_network_rpackets; + xenstat_network_rerrs; + xenstat_network_rdrop; + xenstat_network_tbytes; + xenstat_network_tpackets; + xenstat_network_terrs; + xenstat_network_tdrop; + xenstat_vbd_type; + xenstat_vbd_dev; + xenstat_vbd_oo_reqs; + xenstat_vbd_rd_reqs; + xenstat_vbd_wr_reqs; + xenstat_vbd_rd_sects; + xenstat_vbd_wr_sects; + xenstat_vbd_error; + local: *; /* Do not expose anything by default */ +}; diff --git a/tools/xenstat/libxenstat/src/xenstat.c b/tools/libs/stat/xenstat.c similarity index 100% rename from tools/xenstat/libxenstat/src/xenstat.c rename to tools/libs/stat/xenstat.c diff --git a/tools/xenstat/libxenstat/xenstat.pc.in b/tools/libs/stat/xenstat.pc.in similarity index 82% rename from tools/xenstat/libxenstat/xenstat.pc.in rename to tools/libs/stat/xenstat.pc.in index ad00577c89..6005593ba1 100644 --- a/tools/xenstat/libxenstat/xenstat.pc.in +++ b/tools/libs/stat/xenstat.pc.in @@ -7,4 +7,4 @@ Description: The Xenstat library for Xen hypervisor Version: @@version@@ Cflags: -I${includedir} Libs: @@libsflag@@${libdir} -lxenstat -Requires.private: xencontrol,xenstore +Requires.private: xencontrol,xenstore,yajl diff --git a/tools/xenstat/libxenstat/src/xenstat_freebsd.c b/tools/libs/stat/xenstat_freebsd.c similarity index 100% rename from tools/xenstat/libxenstat/src/xenstat_freebsd.c rename to tools/libs/stat/xenstat_freebsd.c diff --git a/tools/xenstat/libxenstat/src/xenstat_linux.c b/tools/libs/stat/xenstat_linux.c similarity index 98% rename from tools/xenstat/libxenstat/src/xenstat_linux.c rename to tools/libs/stat/xenstat_linux.c index 7530349eee..793263f2b6 100644 --- a/tools/xenstat/libxenstat/src/xenstat_linux.c +++ b/tools/libs/stat/xenstat_linux.c @@ -64,7 +64,7 @@ static const char PROCNETDEV_HEADER[] = /* We need to get the name of the bridge interface for use with bonding interfaces */ /* Use excludeName parameter to avoid adding bridges we don't care about, eg. virbr0 */ -void getBridge(char *excludeName, char *result, size_t resultLen) +static void getBridge(char *excludeName, char *result, size_t resultLen) { struct dirent *de; DIR *d; @@ -89,7 +89,7 @@ void getBridge(char *excludeName, char *result, size_t resultLen) /* parseNetLine provides regular expression based parsing for lines from /proc/net/dev, all the */ /* information are parsed but not all are used in our case, ie. for xenstat */ -int parseNetDevLine(char *line, char *iface, unsigned long long *rxBytes, unsigned long long *rxPackets, +static int parseNetDevLine(char *line, char *iface, unsigned long long *rxBytes, unsigned long long *rxPackets, unsigned long long *rxErrs, unsigned long long *rxDrops, unsigned long long *rxFifo, unsigned long long *rxFrames, unsigned long long *rxComp, unsigned long long *rxMcast, unsigned long long *txBytes, unsigned long long *txPackets, unsigned long long *txErrs, diff --git a/tools/xenstat/libxenstat/src/xenstat_netbsd.c b/tools/libs/stat/xenstat_netbsd.c similarity index 100% rename from tools/xenstat/libxenstat/src/xenstat_netbsd.c rename to tools/libs/stat/xenstat_netbsd.c diff --git a/tools/xenstat/libxenstat/src/xenstat_priv.h b/tools/libs/stat/xenstat_priv.h similarity index 100% rename from tools/xenstat/libxenstat/src/xenstat_priv.h rename to tools/libs/stat/xenstat_priv.h diff --git a/tools/xenstat/libxenstat/src/xenstat_qmp.c b/tools/libs/stat/xenstat_qmp.c similarity index 100% rename from tools/xenstat/libxenstat/src/xenstat_qmp.c rename to tools/libs/stat/xenstat_qmp.c diff --git a/tools/xenstat/libxenstat/src/xenstat_solaris.c b/tools/libs/stat/xenstat_solaris.c similarity index 100% rename from tools/xenstat/libxenstat/src/xenstat_solaris.c rename to tools/libs/stat/xenstat_solaris.c diff --git a/tools/xenstat/Makefile b/tools/xenstat/Makefile deleted file mode 100644 index b300f31289..0000000000 --- a/tools/xenstat/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -XEN_ROOT = $(CURDIR)/../.. -include $(XEN_ROOT)/tools/Rules.mk - -SUBDIRS := -SUBDIRS += libxenstat -SUBDIRS += xentop - -.PHONY: all install clean distclean uninstall - -all install clean distclean uninstall: %: subdirs-% diff --git a/tools/xenstat/xentop/Makefile b/tools/xentop/Makefile similarity index 97% rename from tools/xenstat/xentop/Makefile rename to tools/xentop/Makefile index ec612db2a2..0034114684 100644 --- a/tools/xenstat/xentop/Makefile +++ b/tools/xentop/Makefile @@ -10,7 +10,7 @@ # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. -XEN_ROOT=$(CURDIR)/../../.. +XEN_ROOT=$(CURDIR)/../.. include $(XEN_ROOT)/tools/Rules.mk ifneq ($(XENSTAT_XENTOP),y) diff --git a/tools/xenstat/xentop/TODO b/tools/xentop/TODO similarity index 100% rename from tools/xenstat/xentop/TODO rename to tools/xentop/TODO diff --git a/tools/xenstat/xentop/xentop.c b/tools/xentop/xentop.c similarity index 100% rename from tools/xenstat/xentop/xentop.c rename to tools/xentop/xentop.c -- 2.20.1

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