diff options
| author | Lluís Vilanova <vilanova@ac.upc.edu> | 2014-05-30 14:12:01 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2014-08-12 14:26:12 +0100 |
| commit | f4654226d42cff5351b5f0df5913c5cf04775cdc (patch) | |
| tree | 2f0cdf2aab1038150c1cb0465325b14d4b37bc30 | |
| parent | 341ea69185239eeb7da73434ac2803790a429e9c (diff) | |
trace: [tcg] Define TCG tracing helper routine wrappers
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 <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
| -rw-r--r-- | .gitignore | 1 | ||||
| -rw-r--r-- | Makefile | 1 | ||||
| -rw-r--r-- | scripts/tracetool/format/tcg_helper_wrapper_h.py | 70 | ||||
| -rw-r--r-- | trace/Makefile.objs | 8 |
4 files changed, 80 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore index 643b34b235..6631c57b8d 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 @@ -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 0000000000..cac5a878f9 --- /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 <vilanova@ac.upc.edu>" +__copyright__ = "Copyright 2012-2014, Lluís Vilanova <vilanova@ac.upc.edu>" +__license__ = "GPL version 2 or (at your option) any later version" + +__maintainer__ = "Stefan Hajnoczi" +__email__ = "stefanha@linux.vnet.ibm.com" + + +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 2d36142df0..72cc3f57d1 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) \ |