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[Qemu-devel] [PULL 11/18] trace: [tcg] Define TCG tracing helper routine
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PULL 11/18] trace: [tcg] Define TCG tracing helper routine wrappers |
Date: |
Tue, 12 Aug 2014 14:37:48 +0100 |
From: Lluís Vilanova <address@hidden>
Generates header "trace/generated-helpers-wrappers.h" with definitions for TCG
helper wrappers.
These wrappers ('gen_helper_trace_${event}_exec_wrapper') transform mixed native
and TCG argument types to TCG types and call the actual TCG helpers
('gen_helper_trace_${event}_exec_proxy').
Signed-off-by: Lluís Vilanova <address@hidden>
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
.gitignore | 1 +
Makefile | 1 +
scripts/tracetool/format/tcg_helper_wrapper_h.py | 70 ++++++++++++++++++++++++
trace/Makefile.objs | 8 +++
4 files changed, 80 insertions(+)
create mode 100644 scripts/tracetool/format/tcg_helper_wrapper_h.py
diff --git a/.gitignore b/.gitignore
index 643b34b..6631c57 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,7 @@
/trace/generated-tracers.dtrace
/trace/generated-events.h
/trace/generated-events.c
+/trace/generated-helpers-wrappers.h
/trace/generated-helpers.h
/trace/generated-helpers.c
/trace/generated-ust-provider.h
diff --git a/Makefile b/Makefile
index 09601f7..fa93fc9 100644
--- a/Makefile
+++ b/Makefile
@@ -57,6 +57,7 @@ GENERATED_HEADERS += trace/generated-tracers-dtrace.h
endif
GENERATED_SOURCES += trace/generated-tracers.c
+GENERATED_HEADERS += trace/generated-helpers-wrappers.h
GENERATED_HEADERS += trace/generated-helpers.h
GENERATED_SOURCES += trace/generated-helpers.c
diff --git a/scripts/tracetool/format/tcg_helper_wrapper_h.py
b/scripts/tracetool/format/tcg_helper_wrapper_h.py
new file mode 100644
index 0000000..cac5a87
--- /dev/null
+++ b/scripts/tracetool/format/tcg_helper_wrapper_h.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Generate trace/generated-helpers-wrappers.h.
+"""
+
+__author__ = "Lluís Vilanova <address@hidden>"
+__copyright__ = "Copyright 2012-2014, Lluís Vilanova <address@hidden>"
+__license__ = "GPL version 2 or (at your option) any later version"
+
+__maintainer__ = "Stefan Hajnoczi"
+__email__ = "address@hidden"
+
+
+from tracetool import out
+from tracetool.transform import *
+
+
+def generate(events, backend):
+ events = [e for e in events
+ if "disable" not in e.properties]
+
+ out('/* This file is autogenerated by tracetool, do not edit. */',
+ '',
+ '#define tcg_temp_new_nop(v) (v)',
+ '#define tcg_temp_free_nop(v)',
+ '',
+ )
+
+ for e in events:
+ if "tcg-exec" not in e.properties:
+ continue
+
+ # tracetool.generate always transforms types to host
+ e_args = e.original.args
+
+ # mixed-type to TCG helper bridge
+ args_tcg_compat = e_args.transform(HOST_2_TCG_COMPAT)
+
+ code_new = [
+ "%(tcg_type)s __%(name)s = %(tcg_func)s(%(name)s);" %
+ {"tcg_type": transform_type(type_, HOST_2_TCG),
+ "tcg_func": transform_type(type_, HOST_2_TCG_TMP_NEW),
+ "name": name}
+ for (type_, name) in args_tcg_compat
+ ]
+
+ code_free = [
+ "%(tcg_func)s(__%(name)s);" %
+ {"tcg_func": transform_type(type_, HOST_2_TCG_TMP_FREE),
+ "name": name}
+ for (type_, name) in args_tcg_compat
+ ]
+
+ gen_name = "gen_helper_" + e.api()
+
+ out('static inline void %(name)s(%(args)s)',
+ '{',
+ ' %(code_new)s',
+ ' %(proxy_name)s(%(tmp_names)s);',
+ ' %(code_free)s',
+ '}',
+ name=gen_name,
+ args=e_args,
+ proxy_name=gen_name + "_proxy",
+ code_new="\n ".join(code_new),
+ code_free="\n ".join(code_free),
+ tmp_names=", ".join(["__%s" % name for _, name in e_args]),
+ )
diff --git a/trace/Makefile.objs b/trace/Makefile.objs
index 2d36142..72cc3f5 100644
--- a/trace/Makefile.objs
+++ b/trace/Makefile.objs
@@ -99,6 +99,14 @@ endif
##################################################
# Translation level
+$(obj)/generated-helpers-wrappers.h:
$(obj)/generated-helpers-wrappers.h-timestamp
+$(obj)/generated-helpers-wrappers.h-timestamp: $(SRC_PATH)/trace-events
$(BUILD_DIR)/config-host.mak
+ $(call quiet-command,$(TRACETOOL) \
+ --format=tcg-helper-wrapper-h \
+ --backend=$(TRACE_BACKENDS) \
+ < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
+ @cmp -s $@ $(patsubst %-timestamp,%,$@) || cp $@ $(patsubst
%-timestamp,%,$@)
+
$(obj)/generated-helpers.h: $(obj)/generated-helpers.h-timestamp
$(obj)/generated-helpers.h-timestamp: $(SRC_PATH)/trace-events
$(BUILD_DIR)/config-host.mak
$(call quiet-command,$(TRACETOOL) \
--
1.9.3
- [Qemu-devel] [PULL 02/18] trace: add tracetool simpletrace_stap format, (continued)
- [Qemu-devel] [PULL 02/18] trace: add tracetool simpletrace_stap format, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 01/18] trace: extract stap_escape() function for reuse, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 04/18] trace: install simpletrace SystemTap tapset, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 03/18] simpletrace: add simpletrace.py --no-header option, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 06/18] trace: [tcg] Argument type transformation rules, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 05/18] trace: [tcg] Add documentation, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 07/18] trace: [tcg] Argument type transformation machinery, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 08/18] trace: [tcg] Add 'tcg' event property, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 10/18] trace: [tcg] Define TCG tracing helper routines, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 09/18] trace: [tcg] Declare TCG tracing helper routines, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 11/18] trace: [tcg] Define TCG tracing helper routine wrappers,
Stefan Hajnoczi <=
- [Qemu-devel] [PULL 12/18] trace: [tcg] Include TCG-tracing helpers, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 13/18] trace: [tcg] Generate TCG tracing routines, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 14/18] trace: [tcg] Include event definitions in "trace.h", Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 16/18] trace: teach lttng backend to use format strings, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 15/18] trace: [tcg] Include TCG-tracing header on all targets, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 17/18] trace: add some tcg tracing support, Stefan Hajnoczi, 2014/08/12
- [Qemu-devel] [PULL 18/18] virtio-rng: add some trace events, Stefan Hajnoczi, 2014/08/12
- Re: [Qemu-devel] [PULL 00/18] Tracing patches, Peter Maydell, 2014/08/15