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bef9efd0a9
This adds static markers for dtrace, which are also usable by systemtap. Additionally it adds a tapset for systemtap that makes it easier to use the static markers. These are enabled by default. This initial set of probes is rather limited: * allocation and free using g_malloc & co * allocation and free using g_slice * gquark name tracking (useful for converting quarks to strings in probes) Notes on naming: Its traditional with dtrace to use probe names with dashes as delimiter (slice-alloc). Since dashes are not usable in identifiers the C code uses double underscores (slice__alloc) which is converted to dashes in the UI. We follow this for the shared lowlevel probe names. Additionally dtrace supports putting a "provider" part in the probe names which is essentially a namespacing thing. On systemtap this field is currently ignored (but may be implemented in the future), but this is not really a problem since in systemtap the probes are specified by combining the solib file and the marker name, so there can't really be name conflicts. For the systemtap tapset highlevel probes we instead use names that are systemtapish with single dashes as separators. https://bugzilla.gnome.org/show_bug.cgi?id=606044
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/* GLIB - Library of useful routines for C programming
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*
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* Copyright (C) 2009,2010 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Alexander Larsson <alexl@redhat.com>
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*/
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#ifndef __GLIBTRACE_H__
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#define __GLIBTRACE_H__
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#ifndef SIZEOF_CHAR
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#error "config.h must be included prior to glib_trace.h"
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#endif
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#ifdef HAVE_DTRACE
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/* include the generated probes header and put markers in code */
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#include "glib_probes.h"
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#define TRACE(probe) probe
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#else
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/* Wrap the probe to allow it to be removed when no systemtap available */
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#define TRACE(probe)
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#endif
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#endif /* __GLIBTRACE_H__ */
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