trace: get rid of generated-events.h/generated-events.c

Currently the generated-events.[ch] files contain the
event dstates, constants and TraceEvent structs, while the
generated-tracers.[ch] files contain the actual trace
probe logic. With the removal of usage of the event enums
from the API there is no longer any compelling reason for
the separation between these files. The generated-events.h
content is only ever needed from the generated-tracers.[ch]
files.

The enums/constants/structs from generated-events.[ch] are
thus moved into the generated-tracers.[ch], so that there
is one less file to be generated.

Reviewed-by: Stefan Hajnoczi <[email protected]>
Reviewed-by: Lluís Vilanova <[email protected]>
Signed-off-by: Daniel P. Berrange <[email protected]>
Message-id: 1475588159[email protected]
Signed-off-by: Stefan Hajnoczi <[email protected]>

diff --git a/Makefile b/Makefile
index 5f6acaed3bc9ead0bbee025835fab188e56f201d..3bcb0565b60abb8b8b7af3a290773969151e8955 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -56,9 +56,6 @@ GENERATED_SOURCES += qmp-marshal.c qapi-types.c qapi-visit.c qapi-event.c
 GENERATED_HEADERS += qmp-introspect.h
 GENERATED_SOURCES += qmp-introspect.c
 
-GENERATED_HEADERS += trace/generated-events.h
-GENERATED_SOURCES += trace/generated-events.c
-
 GENERATED_HEADERS += trace/generated-tracers.h
 ifeq ($(findstring dtrace,$(TRACE_BACKENDS)),dtrace)
 GENERATED_HEADERS += trace/generated-tracers-dtrace.h

diff --git a/include/trace-tcg.h b/include/trace-tcg.h
index edab4b159c03d5f1d5683d21b70652931c8b8e29..da68608c856ac3c089ce915283b87d12cc17ece9 100644 (file)
--- a/include/trace-tcg.h
+++ b/include/trace-tcg.h
@@ -2,6 +2,5 @@
 #define TRACE_TCG_H
 
 #include "trace/generated-tcg-tracers.h"
-#include "trace/generated-events.h"
 
 #endif /* TRACE_TCG_H */

diff --git a/include/trace.h b/include/trace.h
index 9a01e4454bdf3761792df27370f10ba4c0ea0f31..ac9ff3dddd5d3e12d9756b8b27b2aa72d370f98d 100644 (file)
--- a/include/trace.h
+++ b/include/trace.h
@@ -2,6 +2,5 @@
 #define TRACE_H
 
 #include "trace/generated-tracers.h"
-#include "trace/generated-events.h"
 
 #endif /* TRACE_H */

diff --git a/scripts/tracetool/format/c.py b/scripts/tracetool/format/c.py
index 699598fb020523187ad562a20f913a2fc4a1bb6c..7ac6d4c5081ad7aaadc8201f653014df1f3e8032 100644 (file)
--- a/scripts/tracetool/format/c.py
+++ b/scripts/tracetool/format/c.py
@@ -17,12 +17,52 @@ from tracetool import out
 
 
 def generate(events, backend):
-    events = [e for e in events
-              if "disable" not in e.properties]
+    active_events = [e for e in events
+                     if "disable" not in e.properties]
 
     out('/* This file is autogenerated by tracetool, do not edit. */',
+        '',
+        '#include "qemu/osdep.h"',
+        '#include "trace.h"',
         '')
-    backend.generate_begin(events)
-    for event in events:
+
+    for e in events:
+        out('uint16_t %s;' % e.api(e.QEMU_DSTATE))
+
+    for e in events:
+        if "vcpu" in e.properties:
+            vcpu_id = 0
+        else:
+            vcpu_id = "TRACE_VCPU_EVENT_NONE"
+        out('TraceEvent %(event)s = {',
+            '    .id = 0,',
+            '    .vcpu_id = %(vcpu_id)s,',
+            '    .name = \"%(name)s\",',
+            '    .sstate = %(sstate)s,',
+            '    .dstate = &%(dstate)s ',
+            '};',
+            event = e.api(e.QEMU_EVENT),
+            vcpu_id = vcpu_id,
+            name = e.name,
+            sstate = "TRACE_%s_ENABLED" % e.name.upper(),
+            dstate = e.api(e.QEMU_DSTATE))
+
+    out('TraceEvent *trace_events[] = {')
+
+    for e in events:
+        out('    &%(event)s,', event = e.api(e.QEMU_EVENT))
+
+    out('  NULL,',
+        '};',
+        '')
+
+    out('static void trace_register_events(void)',
+        '{',
+        '    trace_event_register_group(trace_events);',
+        '}',
+        'trace_init(trace_register_events)')
+
+    backend.generate_begin(active_events)
+    for event in active_events:
         backend.generate(event)
-    backend.generate_end(events)
+    backend.generate_end(active_events)

diff --git a/scripts/tracetool/format/events_c.py b/scripts/tracetool/format/events_c.py
deleted file mode 100644 (file)
index a976c22..0000000
--- a/scripts/tracetool/format/events_c.py
+++ /dev/null
@@ -1,62 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-"""
-trace/generated-events.c
-"""
-
-__author__     = "Lluís Vilanova <[email protected]>"
-__copyright__  = "Copyright 2012-2016, Lluís Vilanova <[email protected]>"
-__license__    = "GPL version 2 or (at your option) any later version"
-
-__maintainer__ = "Stefan Hajnoczi"
-__email__      = "[email protected]"
-
-
-from tracetool import out
-
-
-def generate(events, backend):
-    out('/* This file is autogenerated by tracetool, do not edit. */',
-        '',
-        '#include "qemu/osdep.h"',
-        '#include "trace.h"',
-        '#include "trace/generated-events.h"',
-        '#include "trace/control.h"',
-        '')
-
-    for e in events:
-        out('uint16_t %s;' % e.api(e.QEMU_DSTATE))
-
-    for e in events:
-        if "vcpu" in e.properties:
-            vcpu_id = 0
-        else:
-            vcpu_id = "TRACE_VCPU_EVENT_NONE"
-        out('TraceEvent %(event)s = {',
-            '    .id = 0,',
-            '    .vcpu_id = %(vcpu_id)s,',
-            '    .name = \"%(name)s\",',
-            '    .sstate = %(sstate)s,',
-            '    .dstate = &%(dstate)s ',
-            '};',
-            event = e.api(e.QEMU_EVENT),
-            vcpu_id = vcpu_id,
-            name = e.name,
-            sstate = "TRACE_%s_ENABLED" % e.name.upper(),
-            dstate = e.api(e.QEMU_DSTATE))
-
-    out('TraceEvent *trace_events[] = {')
-
-    for e in events:
-        out('    &%(event)s,', event = e.api(e.QEMU_EVENT))
-
-    out('  NULL,',
-        '};',
-        '')
-
-    out('static void trace_register_events(void)',
-        '{',
-        '    trace_event_register_group(trace_events);',
-        '}',
-        'trace_init(trace_register_events)')

diff --git a/scripts/tracetool/format/events_h.py b/scripts/tracetool/format/events_h.py
deleted file mode 100644 (file)
index 1cb332b..0000000
--- a/scripts/tracetool/format/events_h.py
+++ /dev/null
@@ -1,49 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-"""
-trace/generated-events.h
-"""
-
-__author__     = "Lluís Vilanova <[email protected]>"
-__copyright__  = "Copyright 2012-2016, Lluís Vilanova <[email protected]>"
-__license__    = "GPL version 2 or (at your option) any later version"
-
-__maintainer__ = "Stefan Hajnoczi"
-__email__      = "[email protected]"
-
-
-from tracetool import out
-
-
-def generate(events, backend):
-    out('/* This file is autogenerated by tracetool, do not edit. */',
-        '',
-        '#ifndef TRACE__GENERATED_EVENTS_H',
-        '#define TRACE__GENERATED_EVENTS_H',
-        '',
-        '#include "trace/event-internal.h"',
-        )
-
-    for e in events:
-        out('extern TraceEvent %(event)s;',
-            event = e.api(e.QEMU_EVENT))
-
-    for e in events:
-        out('extern uint16_t %s;' % e.api(e.QEMU_DSTATE))
-
-    # static state
-    for e in events:
-        if 'disable' in e.properties:
-            enabled = 0
-        else:
-            enabled = 1
-        if "tcg-exec" in e.properties:
-            # a single define for the two "sub-events"
-            out('#define TRACE_%(name)s_ENABLED %(enabled)d',
-                name=e.original.name.upper(),
-                enabled=enabled)
-        out('#define TRACE_%s_ENABLED %d' % (e.name.upper(), enabled))
-
-    out('',
-        '#endif  /* TRACE__GENERATED_EVENTS_H */')

diff --git a/scripts/tracetool/format/h.py b/scripts/tracetool/format/h.py
index 64a6680fdcee29ad14caa65a53531fade5093694..f4748c301f405206c8018ef43b6894e6748f849f 100644 (file)
--- a/scripts/tracetool/format/h.py
+++ b/scripts/tracetool/format/h.py
@@ -26,6 +26,26 @@ def generate(events, backend):
         '#include "trace/control.h"',
         '')
 
+    for e in events:
+        out('extern TraceEvent %(event)s;',
+            event = e.api(e.QEMU_EVENT))
+
+    for e in events:
+        out('extern uint16_t %s;' % e.api(e.QEMU_DSTATE))
+
+    # static state
+    for e in events:
+        if 'disable' in e.properties:
+            enabled = 0
+        else:
+            enabled = 1
+        if "tcg-exec" in e.properties:
+            # a single define for the two "sub-events"
+            out('#define TRACE_%(name)s_ENABLED %(enabled)d',
+                name=e.original.name.upper(),
+                enabled=enabled)
+        out('#define TRACE_%s_ENABLED %d' % (e.name.upper(), enabled))
+
     backend.generate_begin(events)
 
     for e in events:

diff --git a/trace/Makefile.objs b/trace/Makefile.objs
index 24d3b3758c44051afd78b42e075222118a33a481..abac3330947abb1e1065d96f0429597f3fb17af8 100644 (file)
--- a/trace/Makefile.objs
+++ b/trace/Makefile.objs
@@ -32,32 +32,11 @@ $(obj)/generated-ust.c-timestamp: $(BUILD_DIR)/trace-events-all $(tracetool-y)
                --backends=$(TRACE_BACKENDS) \
                < $< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
 
-$(obj)/generated-events.h: $(obj)/generated-ust-provider.h
-$(obj)/generated-events.c: $(obj)/generated-ust.c
+$(obj)/generated-tracers.h: $(obj)/generated-ust-provider.h
+$(obj)/generated-tracers.c: $(obj)/generated-ust.c
 
 endif
 
-######################################################################
-# Auto-generated event descriptions
-
-$(obj)/generated-events.h: $(obj)/generated-events.h-timestamp
-       @cmp $< $@ >/dev/null 2>&1 || cp $< $@
-$(obj)/generated-events.h-timestamp: $(BUILD_DIR)/trace-events-all $(tracetool-y)
-       $(call quiet-command,$(TRACETOOL) \
-               --format=events-h \
-               --backends=$(TRACE_BACKENDS) \
-               < $< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
-
-$(obj)/generated-events.c: $(obj)/generated-events.c-timestamp $(BUILD_DIR)/config-host.mak
-       @cmp $< $@ >/dev/null 2>&1 || cp $< $@
-$(obj)/generated-events.c-timestamp: $(BUILD_DIR)/trace-events-all $(tracetool-y)
-       $(call quiet-command,$(TRACETOOL) \
-               --format=events-c \
-               --backends=$(TRACE_BACKENDS) \
-               < $< > $@,"GEN","$(patsubst %-timestamp,%,$@)")
-
-util-obj-y += generated-events.o
-
 
 ######################################################################
 # Auto-generated tracing routines
@@ -154,7 +133,8 @@ $(obj)/generated-tcg-tracers.h-timestamp: $(BUILD_DIR)/trace-events-all $(BUILD_
 ######################################################################
 # Backend code
 
-util-obj-$(CONFIG_TRACE_SIMPLE) += simple.o generated-tracers.o
+util-obj-y += generated-tracers.o
+util-obj-$(CONFIG_TRACE_SIMPLE) += simple.o
 util-obj-$(CONFIG_TRACE_FTRACE) += ftrace.o
 util-obj-$(CONFIG_TRACE_UST) += generated-ust.o
 util-obj-y += control.o

diff --git a/trace/control.h b/trace/control.h
index 69635bfb8b92193cf87f85f61ef024ee81884db7..ccaeac8552d7ff112de8453e340c233d92a6a553 100644 (file)
--- a/trace/control.h
+++ b/trace/control.h
@@ -11,7 +11,7 @@
 #define TRACE__CONTROL_H
 
 #include "qemu-common.h"
-#include "trace/generated-events.h"
+#include "event-internal.h"
 
 typedef struct TraceEventIter {
     size_t event;

diff --git a/trace/simple.h b/trace/simple.h
index 17ce47260f5cfbac49ce7326537c71ef1f03ae33..9931808c053021d22d93ae658171c6334ce70837 100644 (file)
--- a/trace/simple.h
+++ b/trace/simple.h
@@ -11,10 +11,6 @@
 #ifndef TRACE_SIMPLE_H
 #define TRACE_SIMPLE_H
 
-
-#include "trace/generated-events.h"
-
-
 void st_print_trace_file_status(FILE *stream, fprintf_function stream_printf);
 void st_set_trace_file_enabled(bool enable);
 void st_set_trace_file(const char *file);