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+/*
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+ * trace-event-scripting. Scripting engine common and initialization code.
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+ *
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+ * Copyright (C) 2009-2010 Tom Zanussi <tzanussi@gmail.com>
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program 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
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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+ *
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+ */
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+
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <string.h>
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+#include <ctype.h>
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+#include <errno.h>
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+
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+#include "../perf.h"
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+#include "util.h"
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+#include "trace-event.h"
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+
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+struct scripting_context *scripting_context;
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+
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+static int stop_script_unsupported(void)
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+{
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+ return 0;
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+}
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+
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+static void process_event_unsupported(int cpu __unused,
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+ void *data __unused,
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+ int size __unused,
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+ unsigned long long nsecs __unused,
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+ char *comm __unused)
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+{
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+}
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+
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+static void print_perl_unsupported_msg(void)
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+{
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+ fprintf(stderr, "Perl scripting not supported."
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+ " Install libperl and rebuild perf to enable it.\n"
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+ "For example:\n # apt-get install libperl-dev (ubuntu)"
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+ "\n # yum install 'perl(ExtUtils::Embed)' (Fedora)"
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+ "\n etc.\n");
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+}
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+
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+static int perl_start_script_unsupported(const char *script __unused,
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+ int argc __unused,
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+ const char **argv __unused)
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+{
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+ print_perl_unsupported_msg();
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+
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+ return -1;
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+}
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+
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+static int perl_generate_script_unsupported(const char *outfile __unused)
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+{
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+ print_perl_unsupported_msg();
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+
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+ return -1;
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+}
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+
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+struct scripting_ops perl_scripting_unsupported_ops = {
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+ .name = "Perl",
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+ .start_script = perl_start_script_unsupported,
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+ .stop_script = stop_script_unsupported,
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+ .process_event = process_event_unsupported,
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+ .generate_script = perl_generate_script_unsupported,
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+};
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+
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+static void register_perl_scripting(struct scripting_ops *scripting_ops)
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+{
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+ int err;
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+ err = script_spec_register("Perl", scripting_ops);
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+ if (err)
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+ die("error registering Perl script extension");
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+
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+ err = script_spec_register("pl", scripting_ops);
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+ if (err)
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+ die("error registering pl script extension");
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+
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+ scripting_context = malloc(sizeof(struct scripting_context));
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+}
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+
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+#ifdef NO_LIBPERL
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+void setup_perl_scripting(void)
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+{
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+ register_perl_scripting(&perl_scripting_unsupported_ops);
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+}
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+#else
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+struct scripting_ops perl_scripting_ops;
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+
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+void setup_perl_scripting(void)
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+{
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+ register_perl_scripting(&perl_scripting_ops);
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+}
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+#endif
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Tom Zanussi