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e32aaa5a19
On Fedora 36, with lttng-ust 2.13.1, compilation fails with:
In file included from trace/trace-ust-all.h:49085,
from trace/trace-ust-all.c:13:
/usr/include/lttng/tracepoint-event.h:67:10: error: #include expects "FILENAME" or <FILENAME>
67 | #include LTTNG_UST_TRACEPOINT_INCLUDE
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
In lttng-ust commit 41858e2b6e8 ("Fix: don't do macro expansion in
tracepoint file name") from 2012, starting from lttng-ust 2.1, the API
was changed to expect TRACEPOINT_INCLUDE to be defined as a string.
In lttng-ust commit d2966b4b0b2 ("Remove TRACEPOINT_INCLUDE_FILE
macro"), in 2021, the compatibility macro was removed.
Use the "new" API from 2012, and bump the version requirement to 2.1 to
fix compilation with >= 2.13.
According to repology, all distributions we support have >= 2.1 (centos
8 has oldest with 2.8.1 afaict)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220328084717.367993-2-marcandre.lureau@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
106 lines
3.6 KiB
Python
106 lines
3.6 KiB
Python
# -*- coding: utf-8 -*-
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"""
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trace/generated-ust-provider.h
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"""
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__author__ = "Mohamad Gebai <mohamad.gebai@polymtl.ca>"
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__copyright__ = "Copyright 2012, Mohamad Gebai <mohamad.gebai@polymtl.ca>"
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__license__ = "GPL version 2 or (at your option) any later version"
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__maintainer__ = "Stefan Hajnoczi"
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__email__ = "stefanha@redhat.com"
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from tracetool import out
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def generate(events, backend, group):
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events = [e for e in events
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if "disabled" not in e.properties]
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if group == "all":
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include = "trace-ust-all.h"
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else:
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include = "trace-ust.h"
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out('/* This file is autogenerated by tracetool, do not edit. */',
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'',
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'#undef TRACEPOINT_PROVIDER',
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'#define TRACEPOINT_PROVIDER qemu',
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'',
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'#undef TRACEPOINT_INCLUDE',
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'#define TRACEPOINT_INCLUDE "./%s"' % include,
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'',
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'#if !defined (TRACE_%s_GENERATED_UST_H) || \\' % group.upper(),
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' defined(TRACEPOINT_HEADER_MULTI_READ)',
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'#define TRACE_%s_GENERATED_UST_H' % group.upper(),
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'',
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'#include <lttng/tracepoint.h>',
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'',
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'/*',
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' * LTTng ust 2.0 does not allow you to use TP_ARGS(void) for tracepoints',
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' * requiring no arguments. We define these macros introduced in more recent'
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' * versions of LTTng ust as a workaround',
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' */',
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'#ifndef _TP_EXPROTO1',
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'#define _TP_EXPROTO1(a) void',
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'#endif',
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'#ifndef _TP_EXDATA_PROTO1',
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'#define _TP_EXDATA_PROTO1(a) void *__tp_data',
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'#endif',
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'#ifndef _TP_EXDATA_VAR1',
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'#define _TP_EXDATA_VAR1(a) __tp_data',
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'#endif',
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'#ifndef _TP_EXVAR1',
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'#define _TP_EXVAR1(a)',
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'#endif',
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'')
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for e in events:
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if len(e.args) > 0:
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out('TRACEPOINT_EVENT(',
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' qemu,',
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' %(name)s,',
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' TP_ARGS(%(args)s),',
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' TP_FIELDS(',
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name=e.name,
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args=", ".join(", ".join(i) for i in e.args))
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types = e.args.types()
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names = e.args.names()
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fmts = e.formats()
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for t,n,f in zip(types, names, fmts):
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if ('char *' in t) or ('char*' in t):
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out(' ctf_string(' + n + ', ' + n + ')')
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elif ("%p" in f) or ("x" in f) or ("PRIx" in f):
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out(' ctf_integer_hex('+ t + ', ' + n + ', ' + n + ')')
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elif ("ptr" in t) or ("*" in t):
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out(' ctf_integer_hex('+ t + ', ' + n + ', ' + n + ')')
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elif ('int' in t) or ('long' in t) or ('unsigned' in t) \
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or ('size_t' in t) or ('bool' in t):
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out(' ctf_integer(' + t + ', ' + n + ', ' + n + ')')
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elif ('double' in t) or ('float' in t):
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out(' ctf_float(' + t + ', ' + n + ', ' + n + ')')
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elif ('void *' in t) or ('void*' in t):
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out(' ctf_integer_hex(unsigned long, ' + n + ', ' + n + ')')
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out(' )',
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')',
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'')
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else:
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out('TRACEPOINT_EVENT(',
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' qemu,',
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' %(name)s,',
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' TP_ARGS(void),',
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' TP_FIELDS()',
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')',
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'',
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name=e.name)
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out('#endif /* TRACE_%s_GENERATED_UST_H */' % group.upper(),
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'',
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'/* This part must be outside ifdef protection */',
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'#include <lttng/tracepoint-event.h>')
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