From 80dd5c4918aba98f025ca60c838dd68b6e33ff0e Mon Sep 17 00:00:00 2001 From: Daniel P. Berrange Date: Tue, 4 Oct 2016 14:35:59 +0100 Subject: trace: introduce a formal group name for trace events The declarations in the generated-tracers.h file are assuming there's only ever going to be one instance of this header, as they are not namespaced. When we have one header per event group, if a single source file needs to include multiple sets of trace events, the symbols will all clash. This change thus introduces a '--group NAME' arg to the 'tracetool' program. This will cause all the symbols in the generated header files to be given a unique namespace. If no group is given, the group name 'common' is used, which is suitable for the current usage where there is only one global trace-events file used for code generation. Reviewed-by: Stefan Hajnoczi Signed-off-by: Daniel P. Berrange Reviewed-by: Lluís Vilanova Message-id: 1475588159-30598-21-git-send-email-berrange@redhat.com Signed-off-by: Stefan Hajnoczi --- scripts/tracetool/format/h.py | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'scripts/tracetool/format/h.py') diff --git a/scripts/tracetool/format/h.py b/scripts/tracetool/format/h.py index f4748c301f..3682f4e6a8 100644 --- a/scripts/tracetool/format/h.py +++ b/scripts/tracetool/format/h.py @@ -16,11 +16,11 @@ __email__ = "stefanha@linux.vnet.ibm.com" from tracetool import out -def generate(events, backend): +def generate(events, backend, group): out('/* This file is autogenerated by tracetool, do not edit. */', '', - '#ifndef TRACE__GENERATED_TRACERS_H', - '#define TRACE__GENERATED_TRACERS_H', + '#ifndef TRACE_%s_GENERATED_TRACERS_H' % group.upper(), + '#define TRACE_%s_GENERATED_TRACERS_H' % group.upper(), '', '#include "qemu-common.h"', '#include "trace/control.h"', @@ -46,7 +46,7 @@ def generate(events, backend): enabled=enabled) out('#define TRACE_%s_ENABLED %d' % (e.name.upper(), enabled)) - backend.generate_begin(events) + backend.generate_begin(events, group) for e in events: if "vcpu" in e.properties: @@ -68,11 +68,11 @@ def generate(events, backend): cond=cond) if "disable" not in e.properties: - backend.generate(e) + backend.generate(e, group) out(' }', '}') - backend.generate_end(events) + backend.generate_end(events, group) - out('#endif /* TRACE__GENERATED_TRACERS_H */') + out('#endif /* TRACE_%s_GENERATED_TRACERS_H */' % group.upper()) -- cgit v1.2.3-55-g7522