[libvirt] [PATCH 06/10] Split QEMU dtrace probes into separate file
Daniel P. Berrange
berrange at redhat.com
Mon Apr 2 19:57:17 UTC 2012
From: "Daniel P. Berrange" <berrange at redhat.com>
When building as driver modules, it is not possible for the QEMU
driver module to reference the DTrace/SystemTAP probes linked into
the main libvirt.so. Thus we need to move the QEMU probes into a
separate file 'libvirt_qemu_probes.d'. Also rename the existing
file from 'probes.d' to 'libvirt_probes.d' while we're at it
* daemon/Makefile.am, src/internal.h: Include libvirt_probes.h
instead of probes.h
* src/Makefile.am: Add rules for libvirt_qemu_probes.d
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor_json.c,
src/qemu/qemu_monitor_text.c: Include libvirt_qemu_probes.h
* src/libvirt_probes.d: Rename from probes.d
* src/libvirt_qemu_probes.d: QEMU specific probes formerly
in probes.d
Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
---
daemon/Makefile.am | 2 +-
src/Makefile.am | 40 ++++++++++++++++++++++++-----------
src/internal.h | 2 +-
src/{probes.d => libvirt_probes.d} | 21 ------------------
src/libvirt_qemu_probes.d | 21 ++++++++++++++++++
src/qemu/qemu_monitor.c | 4 +++
src/qemu/qemu_monitor_json.c | 4 +++
src/qemu/qemu_monitor_text.c | 4 +++
8 files changed, 62 insertions(+), 36 deletions(-)
rename src/{probes.d => libvirt_probes.d} (78%)
create mode 100644 src/libvirt_qemu_probes.d
diff --git a/daemon/Makefile.am b/daemon/Makefile.am
index db4abf5..f69ed63 100644
--- a/daemon/Makefile.am
+++ b/daemon/Makefile.am
@@ -110,7 +110,7 @@ libvirtd_LDADD = \
$(POLKIT_LIBS)
if WITH_DTRACE_PROBES
-libvirtd_LDADD += ../src/probes.o
+libvirtd_LDADD += ../src/libvirt_probes.o
endif
libvirtd_LDADD += \
diff --git a/src/Makefile.am b/src/Makefile.am
index 2d4636e..9d47bb6 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1236,22 +1236,30 @@ libvirt_la_CFLAGS = -DIN_LIBVIRT $(AM_CFLAGS)
libvirt_la_DEPENDENCIES = $(libvirt_la_BUILT_LIBADD) $(LIBVIRT_SYMBOL_FILE)
if WITH_DTRACE_PROBES
-libvirt_la_BUILT_LIBADD += probes.o
-libvirt_la_DEPENDENCIES += probes.o
-nodist_libvirt_la_SOURCES = probes.h
+libvirt_la_BUILT_LIBADD += libvirt_probes.o
+libvirt_la_DEPENDENCIES += libvirt_probes.o
+nodist_libvirt_la_SOURCES = libvirt_probes.h
if WITH_REMOTE
-$(REMOTE_DRIVER_GENERATED): probes.h
+$(REMOTE_DRIVER_GENERATED): libvirt_probes.h
endif WITH_REMOTE
-BUILT_SOURCES += probes.h libvirt_probes.stp libvirt_functions.stp
+BUILT_SOURCES += libvirt_probes.h libvirt_probes.stp libvirt_functions.stp
+
+if WITH_QEMU
+libvirt_driver_qemu_la_LIBADD += libvirt_qemu_probes.o
+nodist_libvirt_driver_qemu_la_SOURCES = libvirt_qemu_probes.h
+libvirt_driver_qemu_la_DEPENDENCIES = libvirt_qemu_probes.o
+
+$(libvirt_driver_qemu_la_SOURCES): libvirt_qemu_probes.h
+endif
tapsetdir = $(datadir)/systemtap/tapset
-tapset_DATA = libvirt_probes.stp libvirt_functions.stp
+tapset_DATA = libvirt_probes.stp libvirt_qemu_probes.stp libvirt_functions.stp
-probes.h: probes.d
+%_probes.h: %_probes.d
$(AM_V_GEN)$(DTRACE) -o $@ -h -s $<
-probes.o: probes.d
+%_probes.o: %_probes.d
$(AM_V_GEN)$(DTRACE) -o $@ -G -s $<
RPC_PROBE_FILES = $(srcdir)/rpc/virnetprotocol.x \
@@ -1262,13 +1270,19 @@ RPC_PROBE_FILES = $(srcdir)/rpc/virnetprotocol.x \
libvirt_functions.stp: $(RPC_PROBE_FILES) $(srcdir)/rpc/gensystemtap.pl
$(AM_V_GEN)perl -w $(srcdir)/rpc/gensystemtap.pl $(RPC_PROBE_FILES) > $@
-libvirt_probes.stp: probes.d $(srcdir)/dtrace2systemtap.pl
+libvirt_probes.stp: libvirt_probes.d $(srcdir)/dtrace2systemtap.pl
+ $(AM_V_GEN)perl -w $(srcdir)/dtrace2systemtap.pl $(bindir) $(sbindir) $(libdir) $< > $@
+
+libvirt_qemu_probes.stp: libvirt_qemu_probes.d $(srcdir)/dtrace2systemtap.pl
$(AM_V_GEN)perl -w $(srcdir)/dtrace2systemtap.pl $(bindir) $(sbindir) $(libdir) $< > $@
-CLEANFILES += probes.h probes.o libvirt_functions.stp libvirt_probes.stp
+CLEANFILES += libvirt_probes.h libvirt_probes.o \
+ libvirt_qemu_probes.h libvirt_qemu_probes.o \
+ libvirt_functions.stp libvirt_probes.stp \
+ libvirt_qemu_probes.stp
endif
-EXTRA_DIST += probes.d
+EXTRA_DIST += libvirt_probes.d libvirt_qemu_probes.d
libvirt_qemu_la_SOURCES = libvirt-qemu.c
libvirt_qemu_la_LDFLAGS = $(VERSION_SCRIPT_FLAGS)$(LIBVIRT_QEMU_SYMBOL_FILE) \
@@ -1455,7 +1469,7 @@ libvirt_lxc_LDADD = $(CAPNG_LIBS) $(YAJL_LIBS) \
$(RT_LIBS) \
../gnulib/lib/libgnu.la
if WITH_DTRACE_PROBES
-libvirt_lxc_LDADD += probes.o
+libvirt_lxc_LDADD += libvirt_probes.o
endif
if WITH_SECDRIVER_SELINUX
libvirt_lxc_LDADD += $(SELINUX_LIBS)
@@ -1498,7 +1512,7 @@ virt_aa_helper_LDADD = \
libvirt_util.la \
../gnulib/lib/libgnu.la
if WITH_DTRACE_PROBES
-virt_aa_helper_LDADD += probes.o
+virt_aa_helper_LDADD += libvirt_probes.o
endif
virt_aa_helper_CFLAGS = \
-I$(top_srcdir)/src/conf \
diff --git a/src/internal.h b/src/internal.h
index ef81cda..a04c4ec 100644
--- a/src/internal.h
+++ b/src/internal.h
@@ -250,7 +250,7 @@
# if WITH_DTRACE_PROBES
# ifndef LIBVIRT_PROBES_H
# define LIBVIRT_PROBES_H
-# include "probes.h"
+# include "libvirt_probes.h"
# endif /* LIBVIRT_PROBES_H */
/* Systemtap 1.2 headers have a bug where they cannot handle a
diff --git a/src/probes.d b/src/libvirt_probes.d
similarity index 78%
rename from src/probes.d
rename to src/libvirt_probes.d
index 9d70cc9..0dac8f3 100644
--- a/src/probes.d
+++ b/src/libvirt_probes.d
@@ -82,25 +82,4 @@ provider libvirt {
probe rpc_keepalive_send(void *ka, void *client, int prog, int vers, int proc);
probe rpc_keepalive_received(void *ka, void *client, int prog, int vers, int proc);
probe rpc_keepalive_timeout(void *ka, void *client, int coundToDeath, int idle);
-
-
- # file: src/qemu/qemu_monitor.c
- # prefix: qemu
- # binary: libvirtd
- # Monitor lifecycle
- probe qemu_monitor_new(void *mon, int refs, int fd);
- probe qemu_monitor_ref(void *mon, int refs);
- probe qemu_monitor_unref(void *mon, int refs);
- probe qemu_monitor_close(void *monm, int refs);
-
- # High level monitor message processing
- probe qemu_monitor_send_msg(void *mon, const char *msg, int fd);
- probe qemu_monitor_recv_reply(void *mon, const char *reply);
- probe qemu_monitor_recv_event(void *mon, const char *event);
-
- # Low level monitor I/O processing
- probe qemu_monitor_io_process(void *mon, const char *buf, unsigned int len);
- probe qemu_monitor_io_read(void *mon, const char *buf, unsigned int len, int ret, int errno);
- probe qemu_monitor_io_write(void *mon, const char *buf, unsigned int len, int ret, int errno);
- probe qemu_monitor_io_send_fd(void *mon, int fd, int ret, int errno);
};
diff --git a/src/libvirt_qemu_probes.d b/src/libvirt_qemu_probes.d
new file mode 100644
index 0000000..6916778
--- /dev/null
+++ b/src/libvirt_qemu_probes.d
@@ -0,0 +1,21 @@
+provider libvirt {
+ # file: src/qemu/qemu_monitor.c
+ # prefix: qemu
+ # binary: libvirtd
+ # Monitor lifecycle
+ probe qemu_monitor_new(void *mon, int refs, int fd);
+ probe qemu_monitor_ref(void *mon, int refs);
+ probe qemu_monitor_unref(void *mon, int refs);
+ probe qemu_monitor_close(void *monm, int refs);
+
+ # High level monitor message processing
+ probe qemu_monitor_send_msg(void *mon, const char *msg, int fd);
+ probe qemu_monitor_recv_reply(void *mon, const char *reply);
+ probe qemu_monitor_recv_event(void *mon, const char *event);
+
+ # Low level monitor I/O processing
+ probe qemu_monitor_io_process(void *mon, const char *buf, unsigned int len);
+ probe qemu_monitor_io_read(void *mon, const char *buf, unsigned int len, int ret, int errno);
+ probe qemu_monitor_io_write(void *mon, const char *buf, unsigned int len, int ret, int errno);
+ probe qemu_monitor_io_send_fd(void *mon, int fd, int ret, int errno);
+};
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index e1a8d4c..b024567 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -37,6 +37,10 @@
#include "logging.h"
#include "virfile.h"
+#ifdef WITH_DTRACE_PROBES
+# include "libvirt_qemu_probes.h"
+#endif
+
#define VIR_FROM_THIS VIR_FROM_QEMU
#define DEBUG_IO 0
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 7093e1d..76f5b1c 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -43,6 +43,10 @@
#include "json.h"
#include "ignore-value.h"
+#ifdef WITH_DTRACE_PROBES
+# include "libvirt_qemu_probes.h"
+#endif
+
#define VIR_FROM_THIS VIR_FROM_QEMU
diff --git a/src/qemu/qemu_monitor_text.c b/src/qemu/qemu_monitor_text.c
index 9e2991b..edb5dfd 100644
--- a/src/qemu/qemu_monitor_text.c
+++ b/src/qemu/qemu_monitor_text.c
@@ -41,6 +41,10 @@
#include "virterror_internal.h"
#include "buf.h"
+#ifdef WITH_DTRACE_PROBES
+# include "libvirt_qemu_probes.h"
+#endif
+
#define VIR_FROM_THIS VIR_FROM_QEMU
#define QEMU_CMD_PROMPT "\n(qemu) "
--
1.7.7.6
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