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Message-Id: <1264580883-15324-5-git-send-email-tzanussi@gmail.com>
Date: Wed, 27 Jan 2010 02:27:55 -0600
From: Tom Zanussi <tzanussi@...il.com>
To: linux-kernel@...r.kernel.org
Cc: mingo@...e.hu, fweisbec@...il.com, rostedt@...dmis.org,
k-keiichi@...jp.nec.com
Subject: [PATCH 04/12] perf trace/scripting: move Perl scripting files to scripting-engines dir
Create a scripting-engines directory to contain scripting engine
implementation code, in anticipation of the addition of new scripting
support. Also removes trace-event-perl.h.
Signed-off-by: Tom Zanussi <tzanussi@...il.com>
---
tools/perf/Makefile | 9 +-
.../perf/util/scripting-engines/trace-event-perl.c | 568 ++++++++++++++++++
tools/perf/util/trace-event-perl.c | 634 --------------------
tools/perf/util/trace-event-perl.h | 47 --
tools/perf/util/trace-event-scripting.c | 106 ++++
5 files changed, 679 insertions(+), 685 deletions(-)
create mode 100644 tools/perf/util/scripting-engines/trace-event-perl.c
delete mode 100644 tools/perf/util/trace-event-perl.c
delete mode 100644 tools/perf/util/trace-event-perl.h
create mode 100644 tools/perf/util/trace-event-scripting.c
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 9b173e6..b09588f 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -383,7 +383,6 @@ LIB_H += util/sort.h
LIB_H += util/hist.h
LIB_H += util/thread.h
LIB_H += util/trace-event.h
-LIB_H += util/trace-event-perl.h
LIB_H += util/probe-finder.h
LIB_H += util/probe-event.h
@@ -425,7 +424,7 @@ LIB_OBJS += util/thread.o
LIB_OBJS += util/trace-event-parse.o
LIB_OBJS += util/trace-event-read.o
LIB_OBJS += util/trace-event-info.o
-LIB_OBJS += util/trace-event-perl.o
+LIB_OBJS += util/trace-event-scripting.o
LIB_OBJS += util/svghelper.o
LIB_OBJS += util/sort.o
LIB_OBJS += util/hist.o
@@ -515,6 +514,7 @@ ifneq ($(shell sh -c "(echo '\#include <EXTERN.h>'; echo '\#include <perl.h>'; e
BASIC_CFLAGS += -DNO_LIBPERL
else
ALL_LDFLAGS += $(PERL_EMBED_LDOPTS)
+ LIB_OBJS += util/scripting-engines/trace-event-perl.o
LIB_OBJS += scripts/perl/Perf-Trace-Util/Context.o
endif
@@ -889,8 +889,8 @@ util/hweight.o: ../../lib/hweight.c PERF-CFLAGS
util/find_next_bit.o: ../../lib/find_next_bit.c PERF-CFLAGS
$(QUIET_CC)$(CC) -o util/find_next_bit.o -c $(ALL_CFLAGS) -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
-util/trace-event-perl.o: util/trace-event-perl.c PERF-CFLAGS
- $(QUIET_CC)$(CC) -o util/trace-event-perl.o -c $(ALL_CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow $<
+util/scripting-engines/trace-event-perl.o: util/scripting-engines/trace-event-perl.c PERF-CFLAGS
+ $(QUIET_CC)$(CC) -o util/scripting-engines/trace-event-perl.o -c $(ALL_CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow $<
scripts/perl/Perf-Trace-Util/Context.o: scripts/perl/Perf-Trace-Util/Context.c PERF-CFLAGS
$(QUIET_CC)$(CC) -o scripts/perl/Perf-Trace-Util/Context.o -c $(ALL_CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs $<
@@ -1008,6 +1008,7 @@ install: all
$(INSTALL) scripts/perl/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
$(INSTALL) scripts/perl/*.pl -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl'
$(INSTALL) scripts/perl/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
+
ifdef BUILT_INS
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
$(INSTALL) $(BUILT_INS) '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
new file mode 100644
index 0000000..5376378
--- /dev/null
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -0,0 +1,568 @@
+/*
+ * trace-event-perl. Feed perf trace events to an embedded Perl interpreter.
+ *
+ * Copyright (C) 2009 Tom Zanussi <tzanussi@...il.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+
+#include "../../perf.h"
+#include "../util.h"
+#include "../trace-event.h"
+
+#include <EXTERN.h>
+#include <perl.h>
+
+void boot_Perf__Trace__Context(pTHX_ CV *cv);
+void boot_DynaLoader(pTHX_ CV *cv);
+typedef PerlInterpreter * INTERP;
+
+void xs_init(pTHX);
+
+void xs_init(pTHX)
+{
+ const char *file = __FILE__;
+ dXSUB_SYS;
+
+ newXS("Perf::Trace::Context::bootstrap", boot_Perf__Trace__Context,
+ file);
+ newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
+}
+
+INTERP my_perl;
+
+#define FTRACE_MAX_EVENT \
+ ((1 << (sizeof(unsigned short) * 8)) - 1)
+
+struct event *events[FTRACE_MAX_EVENT];
+
+extern struct scripting_context *scripting_context;
+
+static char *cur_field_name;
+static int zero_flag_atom;
+
+static void define_symbolic_value(const char *ev_name,
+ const char *field_name,
+ const char *field_value,
+ const char *field_str)
+{
+ unsigned long long value;
+ dSP;
+
+ value = eval_flag(field_value);
+
+ ENTER;
+ SAVETMPS;
+ PUSHMARK(SP);
+
+ XPUSHs(sv_2mortal(newSVpv(ev_name, 0)));
+ XPUSHs(sv_2mortal(newSVpv(field_name, 0)));
+ XPUSHs(sv_2mortal(newSVuv(value)));
+ XPUSHs(sv_2mortal(newSVpv(field_str, 0)));
+
+ PUTBACK;
+ if (get_cv("main::define_symbolic_value", 0))
+ call_pv("main::define_symbolic_value", G_SCALAR);
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+}
+
+static void define_symbolic_values(struct print_flag_sym *field,
+ const char *ev_name,
+ const char *field_name)
+{
+ define_symbolic_value(ev_name, field_name, field->value, field->str);
+ if (field->next)
+ define_symbolic_values(field->next, ev_name, field_name);
+}
+
+static void define_symbolic_field(const char *ev_name,
+ const char *field_name)
+{
+ dSP;
+
+ ENTER;
+ SAVETMPS;
+ PUSHMARK(SP);
+
+ XPUSHs(sv_2mortal(newSVpv(ev_name, 0)));
+ XPUSHs(sv_2mortal(newSVpv(field_name, 0)));
+
+ PUTBACK;
+ if (get_cv("main::define_symbolic_field", 0))
+ call_pv("main::define_symbolic_field", G_SCALAR);
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+}
+
+static void define_flag_value(const char *ev_name,
+ const char *field_name,
+ const char *field_value,
+ const char *field_str)
+{
+ unsigned long long value;
+ dSP;
+
+ value = eval_flag(field_value);
+
+ ENTER;
+ SAVETMPS;
+ PUSHMARK(SP);
+
+ XPUSHs(sv_2mortal(newSVpv(ev_name, 0)));
+ XPUSHs(sv_2mortal(newSVpv(field_name, 0)));
+ XPUSHs(sv_2mortal(newSVuv(value)));
+ XPUSHs(sv_2mortal(newSVpv(field_str, 0)));
+
+ PUTBACK;
+ if (get_cv("main::define_flag_value", 0))
+ call_pv("main::define_flag_value", G_SCALAR);
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+}
+
+static void define_flag_values(struct print_flag_sym *field,
+ const char *ev_name,
+ const char *field_name)
+{
+ define_flag_value(ev_name, field_name, field->value, field->str);
+ if (field->next)
+ define_flag_values(field->next, ev_name, field_name);
+}
+
+static void define_flag_field(const char *ev_name,
+ const char *field_name,
+ const char *delim)
+{
+ dSP;
+
+ ENTER;
+ SAVETMPS;
+ PUSHMARK(SP);
+
+ XPUSHs(sv_2mortal(newSVpv(ev_name, 0)));
+ XPUSHs(sv_2mortal(newSVpv(field_name, 0)));
+ XPUSHs(sv_2mortal(newSVpv(delim, 0)));
+
+ PUTBACK;
+ if (get_cv("main::define_flag_field", 0))
+ call_pv("main::define_flag_field", G_SCALAR);
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+}
+
+static void define_event_symbols(struct event *event,
+ const char *ev_name,
+ struct print_arg *args)
+{
+ switch (args->type) {
+ case PRINT_NULL:
+ break;
+ case PRINT_ATOM:
+ define_flag_value(ev_name, cur_field_name, "0",
+ args->atom.atom);
+ zero_flag_atom = 0;
+ break;
+ case PRINT_FIELD:
+ if (cur_field_name)
+ free(cur_field_name);
+ cur_field_name = strdup(args->field.name);
+ break;
+ case PRINT_FLAGS:
+ define_event_symbols(event, ev_name, args->flags.field);
+ define_flag_field(ev_name, cur_field_name, args->flags.delim);
+ define_flag_values(args->flags.flags, ev_name, cur_field_name);
+ break;
+ case PRINT_SYMBOL:
+ define_event_symbols(event, ev_name, args->symbol.field);
+ define_symbolic_field(ev_name, cur_field_name);
+ define_symbolic_values(args->symbol.symbols, ev_name,
+ cur_field_name);
+ break;
+ case PRINT_STRING:
+ break;
+ case PRINT_TYPE:
+ define_event_symbols(event, ev_name, args->typecast.item);
+ break;
+ case PRINT_OP:
+ if (strcmp(args->op.op, ":") == 0)
+ zero_flag_atom = 1;
+ define_event_symbols(event, ev_name, args->op.left);
+ define_event_symbols(event, ev_name, args->op.right);
+ break;
+ default:
+ /* we should warn... */
+ return;
+ }
+
+ if (args->next)
+ define_event_symbols(event, ev_name, args->next);
+}
+
+static inline struct event *find_cache_event(int type)
+{
+ static char ev_name[256];
+ struct event *event;
+
+ if (events[type])
+ return events[type];
+
+ events[type] = event = trace_find_event(type);
+ if (!event)
+ return NULL;
+
+ sprintf(ev_name, "%s::%s", event->system, event->name);
+
+ define_event_symbols(event, ev_name, event->print_fmt.args);
+
+ return event;
+}
+
+static void perl_process_event(int cpu, void *data,
+ int size __unused,
+ unsigned long long nsecs, char *comm)
+{
+ struct format_field *field;
+ static char handler[256];
+ unsigned long long val;
+ unsigned long s, ns;
+ struct event *event;
+ int type;
+ int pid;
+
+ dSP;
+
+ type = trace_parse_common_type(data);
+
+ event = find_cache_event(type);
+ if (!event)
+ die("ug! no event found for type %d", type);
+
+ pid = trace_parse_common_pid(data);
+
+ sprintf(handler, "%s::%s", event->system, event->name);
+
+ s = nsecs / NSECS_PER_SEC;
+ ns = nsecs - s * NSECS_PER_SEC;
+
+ scripting_context->event_data = data;
+
+ ENTER;
+ SAVETMPS;
+ PUSHMARK(SP);
+
+ XPUSHs(sv_2mortal(newSVpv(handler, 0)));
+ XPUSHs(sv_2mortal(newSViv(PTR2IV(scripting_context))));
+ XPUSHs(sv_2mortal(newSVuv(cpu)));
+ XPUSHs(sv_2mortal(newSVuv(s)));
+ XPUSHs(sv_2mortal(newSVuv(ns)));
+ XPUSHs(sv_2mortal(newSViv(pid)));
+ XPUSHs(sv_2mortal(newSVpv(comm, 0)));
+
+ /* common fields other than pid can be accessed via xsub fns */
+
+ for (field = event->format.fields; field; field = field->next) {
+ if (field->flags & FIELD_IS_STRING) {
+ int offset;
+ if (field->flags & FIELD_IS_DYNAMIC) {
+ offset = *(int *)(data + field->offset);
+ offset &= 0xffff;
+ } else
+ offset = field->offset;
+ XPUSHs(sv_2mortal(newSVpv((char *)data + offset, 0)));
+ } else { /* FIELD_IS_NUMERIC */
+ val = read_size(data + field->offset, field->size);
+ if (field->flags & FIELD_IS_SIGNED) {
+ XPUSHs(sv_2mortal(newSViv(val)));
+ } else {
+ XPUSHs(sv_2mortal(newSVuv(val)));
+ }
+ }
+ }
+
+ PUTBACK;
+
+ if (get_cv(handler, 0))
+ call_pv(handler, G_SCALAR);
+ else if (get_cv("main::trace_unhandled", 0)) {
+ XPUSHs(sv_2mortal(newSVpv(handler, 0)));
+ XPUSHs(sv_2mortal(newSViv(PTR2IV(scripting_context))));
+ XPUSHs(sv_2mortal(newSVuv(cpu)));
+ XPUSHs(sv_2mortal(newSVuv(nsecs)));
+ XPUSHs(sv_2mortal(newSViv(pid)));
+ XPUSHs(sv_2mortal(newSVpv(comm, 0)));
+ call_pv("main::trace_unhandled", G_SCALAR);
+ }
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+}
+
+static void run_start_sub(void)
+{
+ dSP; /* access to Perl stack */
+ PUSHMARK(SP);
+
+ if (get_cv("main::trace_begin", 0))
+ call_pv("main::trace_begin", G_DISCARD | G_NOARGS);
+}
+
+/*
+ * Start trace script
+ */
+static int perl_start_script(const char *script, int argc, const char **argv)
+{
+ const char **command_line;
+ int i, err = 0;
+
+ command_line = malloc((argc + 2) * sizeof(const char *));
+ command_line[0] = "";
+ command_line[1] = script;
+ for (i = 2; i < argc + 2; i++)
+ command_line[i] = argv[i - 2];
+
+ my_perl = perl_alloc();
+ perl_construct(my_perl);
+
+ if (perl_parse(my_perl, xs_init, argc + 2, (char **)command_line,
+ (char **)NULL)) {
+ err = -1;
+ goto error;
+ }
+
+ if (perl_run(my_perl)) {
+ err = -1;
+ goto error;
+ }
+
+ if (SvTRUE(ERRSV)) {
+ err = -1;
+ goto error;
+ }
+
+ run_start_sub();
+
+ free(command_line);
+ fprintf(stderr, "perf trace started with Perl script %s\n\n", script);
+ return 0;
+error:
+ perl_free(my_perl);
+ free(command_line);
+
+ return err;
+}
+
+/*
+ * Stop trace script
+ */
+static int perl_stop_script(void)
+{
+ dSP; /* access to Perl stack */
+ PUSHMARK(SP);
+
+ if (get_cv("main::trace_end", 0))
+ call_pv("main::trace_end", G_DISCARD | G_NOARGS);
+
+ perl_destruct(my_perl);
+ perl_free(my_perl);
+
+ fprintf(stderr, "\nperf trace Perl script stopped\n");
+
+ return 0;
+}
+
+static int perl_generate_script(const char *outfile)
+{
+ struct event *event = NULL;
+ struct format_field *f;
+ char fname[PATH_MAX];
+ int not_first, count;
+ FILE *ofp;
+
+ sprintf(fname, "%s.pl", outfile);
+ ofp = fopen(fname, "w");
+ if (ofp == NULL) {
+ fprintf(stderr, "couldn't open %s\n", fname);
+ return -1;
+ }
+
+ fprintf(ofp, "# perf trace event handlers, "
+ "generated by perf trace -g perl\n");
+
+ fprintf(ofp, "# Licensed under the terms of the GNU GPL"
+ " License version 2\n\n");
+
+ fprintf(ofp, "# The common_* event handler fields are the most useful "
+ "fields common to\n");
+
+ fprintf(ofp, "# all events. They don't necessarily correspond to "
+ "the 'common_*' fields\n");
+
+ fprintf(ofp, "# in the format files. Those fields not available as "
+ "handler params can\n");
+
+ fprintf(ofp, "# be retrieved using Perl functions of the form "
+ "common_*($context).\n");
+
+ fprintf(ofp, "# See Context.pm for the list of available "
+ "functions.\n\n");
+
+ fprintf(ofp, "use lib \"$ENV{'PERF_EXEC_PATH'}/scripts/perl/"
+ "Perf-Trace-Util/lib\";\n");
+
+ fprintf(ofp, "use lib \"./Perf-Trace-Util/lib\";\n");
+ fprintf(ofp, "use Perf::Trace::Core;\n");
+ fprintf(ofp, "use Perf::Trace::Context;\n");
+ fprintf(ofp, "use Perf::Trace::Util;\n\n");
+
+ fprintf(ofp, "sub trace_begin\n{\n\t# optional\n}\n\n");
+ fprintf(ofp, "sub trace_end\n{\n\t# optional\n}\n\n");
+
+ while ((event = trace_find_next_event(event))) {
+ fprintf(ofp, "sub %s::%s\n{\n", event->system, event->name);
+ fprintf(ofp, "\tmy (");
+
+ fprintf(ofp, "$event_name, ");
+ fprintf(ofp, "$context, ");
+ fprintf(ofp, "$common_cpu, ");
+ fprintf(ofp, "$common_secs, ");
+ fprintf(ofp, "$common_nsecs,\n");
+ fprintf(ofp, "\t $common_pid, ");
+ fprintf(ofp, "$common_comm,\n\t ");
+
+ not_first = 0;
+ count = 0;
+
+ for (f = event->format.fields; f; f = f->next) {
+ if (not_first++)
+ fprintf(ofp, ", ");
+ if (++count % 5 == 0)
+ fprintf(ofp, "\n\t ");
+
+ fprintf(ofp, "$%s", f->name);
+ }
+ fprintf(ofp, ") = @_;\n\n");
+
+ fprintf(ofp, "\tprint_header($event_name, $common_cpu, "
+ "$common_secs, $common_nsecs,\n\t "
+ "$common_pid, $common_comm);\n\n");
+
+ fprintf(ofp, "\tprintf(\"");
+
+ not_first = 0;
+ count = 0;
+
+ for (f = event->format.fields; f; f = f->next) {
+ if (not_first++)
+ fprintf(ofp, ", ");
+ if (count && count % 4 == 0) {
+ fprintf(ofp, "\".\n\t \"");
+ }
+ count++;
+
+ fprintf(ofp, "%s=", f->name);
+ if (f->flags & FIELD_IS_STRING ||
+ f->flags & FIELD_IS_FLAG ||
+ f->flags & FIELD_IS_SYMBOLIC)
+ fprintf(ofp, "%%s");
+ else if (f->flags & FIELD_IS_SIGNED)
+ fprintf(ofp, "%%d");
+ else
+ fprintf(ofp, "%%u");
+ }
+
+ fprintf(ofp, "\\n\",\n\t ");
+
+ not_first = 0;
+ count = 0;
+
+ for (f = event->format.fields; f; f = f->next) {
+ if (not_first++)
+ fprintf(ofp, ", ");
+
+ if (++count % 5 == 0)
+ fprintf(ofp, "\n\t ");
+
+ if (f->flags & FIELD_IS_FLAG) {
+ if ((count - 1) % 5 != 0) {
+ fprintf(ofp, "\n\t ");
+ count = 4;
+ }
+ fprintf(ofp, "flag_str(\"");
+ fprintf(ofp, "%s::%s\", ", event->system,
+ event->name);
+ fprintf(ofp, "\"%s\", $%s)", f->name,
+ f->name);
+ } else if (f->flags & FIELD_IS_SYMBOLIC) {
+ if ((count - 1) % 5 != 0) {
+ fprintf(ofp, "\n\t ");
+ count = 4;
+ }
+ fprintf(ofp, "symbol_str(\"");
+ fprintf(ofp, "%s::%s\", ", event->system,
+ event->name);
+ fprintf(ofp, "\"%s\", $%s)", f->name,
+ f->name);
+ } else
+ fprintf(ofp, "$%s", f->name);
+ }
+
+ fprintf(ofp, ");\n");
+ fprintf(ofp, "}\n\n");
+ }
+
+ fprintf(ofp, "sub trace_unhandled\n{\n\tmy ($event_name, $context, "
+ "$common_cpu, $common_secs, $common_nsecs,\n\t "
+ "$common_pid, $common_comm) = @_;\n\n");
+
+ fprintf(ofp, "\tprint_header($event_name, $common_cpu, "
+ "$common_secs, $common_nsecs,\n\t $common_pid, "
+ "$common_comm);\n}\n\n");
+
+ fprintf(ofp, "sub print_header\n{\n"
+ "\tmy ($event_name, $cpu, $secs, $nsecs, $pid, $comm) = @_;\n\n"
+ "\tprintf(\"%%-20s %%5u %%05u.%%09u %%8u %%-20s \",\n\t "
+ "$event_name, $cpu, $secs, $nsecs, $pid, $comm);\n}");
+
+ fclose(ofp);
+
+ fprintf(stderr, "generated Perl script: %s\n", fname);
+
+ return 0;
+}
+
+struct scripting_ops perl_scripting_ops = {
+ .name = "Perl",
+ .start_script = perl_start_script,
+ .stop_script = perl_stop_script,
+ .process_event = perl_process_event,
+ .generate_script = perl_generate_script,
+};
diff --git a/tools/perf/util/trace-event-perl.c b/tools/perf/util/trace-event-perl.c
deleted file mode 100644
index 5b49df0..0000000
--- a/tools/perf/util/trace-event-perl.c
+++ /dev/null
@@ -1,634 +0,0 @@
-/*
- * trace-event-perl. Feed perf trace events to an embedded Perl interpreter.
- *
- * Copyright (C) 2009 Tom Zanussi <tzanussi@...il.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-
-#include "../perf.h"
-#include "util.h"
-#include "trace-event.h"
-#include "trace-event-perl.h"
-
-void xs_init(pTHX);
-
-void xs_init(pTHX)
-{
- const char *file = __FILE__;
- dXSUB_SYS;
-
- newXS("Perf::Trace::Context::bootstrap", boot_Perf__Trace__Context,
- file);
- newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
-}
-
-INTERP my_perl;
-
-#define FTRACE_MAX_EVENT \
- ((1 << (sizeof(unsigned short) * 8)) - 1)
-
-struct event *events[FTRACE_MAX_EVENT];
-
-static struct scripting_context *scripting_context;
-
-static char *cur_field_name;
-static int zero_flag_atom;
-
-static void define_symbolic_value(const char *ev_name,
- const char *field_name,
- const char *field_value,
- const char *field_str)
-{
- unsigned long long value;
- dSP;
-
- value = eval_flag(field_value);
-
- ENTER;
- SAVETMPS;
- PUSHMARK(SP);
-
- XPUSHs(sv_2mortal(newSVpv(ev_name, 0)));
- XPUSHs(sv_2mortal(newSVpv(field_name, 0)));
- XPUSHs(sv_2mortal(newSVuv(value)));
- XPUSHs(sv_2mortal(newSVpv(field_str, 0)));
-
- PUTBACK;
- if (get_cv("main::define_symbolic_value", 0))
- call_pv("main::define_symbolic_value", G_SCALAR);
- SPAGAIN;
- PUTBACK;
- FREETMPS;
- LEAVE;
-}
-
-static void define_symbolic_values(struct print_flag_sym *field,
- const char *ev_name,
- const char *field_name)
-{
- define_symbolic_value(ev_name, field_name, field->value, field->str);
- if (field->next)
- define_symbolic_values(field->next, ev_name, field_name);
-}
-
-static void define_symbolic_field(const char *ev_name,
- const char *field_name)
-{
- dSP;
-
- ENTER;
- SAVETMPS;
- PUSHMARK(SP);
-
- XPUSHs(sv_2mortal(newSVpv(ev_name, 0)));
- XPUSHs(sv_2mortal(newSVpv(field_name, 0)));
-
- PUTBACK;
- if (get_cv("main::define_symbolic_field", 0))
- call_pv("main::define_symbolic_field", G_SCALAR);
- SPAGAIN;
- PUTBACK;
- FREETMPS;
- LEAVE;
-}
-
-static void define_flag_value(const char *ev_name,
- const char *field_name,
- const char *field_value,
- const char *field_str)
-{
- unsigned long long value;
- dSP;
-
- value = eval_flag(field_value);
-
- ENTER;
- SAVETMPS;
- PUSHMARK(SP);
-
- XPUSHs(sv_2mortal(newSVpv(ev_name, 0)));
- XPUSHs(sv_2mortal(newSVpv(field_name, 0)));
- XPUSHs(sv_2mortal(newSVuv(value)));
- XPUSHs(sv_2mortal(newSVpv(field_str, 0)));
-
- PUTBACK;
- if (get_cv("main::define_flag_value", 0))
- call_pv("main::define_flag_value", G_SCALAR);
- SPAGAIN;
- PUTBACK;
- FREETMPS;
- LEAVE;
-}
-
-static void define_flag_values(struct print_flag_sym *field,
- const char *ev_name,
- const char *field_name)
-{
- define_flag_value(ev_name, field_name, field->value, field->str);
- if (field->next)
- define_flag_values(field->next, ev_name, field_name);
-}
-
-static void define_flag_field(const char *ev_name,
- const char *field_name,
- const char *delim)
-{
- dSP;
-
- ENTER;
- SAVETMPS;
- PUSHMARK(SP);
-
- XPUSHs(sv_2mortal(newSVpv(ev_name, 0)));
- XPUSHs(sv_2mortal(newSVpv(field_name, 0)));
- XPUSHs(sv_2mortal(newSVpv(delim, 0)));
-
- PUTBACK;
- if (get_cv("main::define_flag_field", 0))
- call_pv("main::define_flag_field", G_SCALAR);
- SPAGAIN;
- PUTBACK;
- FREETMPS;
- LEAVE;
-}
-
-static void define_event_symbols(struct event *event,
- const char *ev_name,
- struct print_arg *args)
-{
- switch (args->type) {
- case PRINT_NULL:
- break;
- case PRINT_ATOM:
- define_flag_value(ev_name, cur_field_name, "0",
- args->atom.atom);
- zero_flag_atom = 0;
- break;
- case PRINT_FIELD:
- if (cur_field_name)
- free(cur_field_name);
- cur_field_name = strdup(args->field.name);
- break;
- case PRINT_FLAGS:
- define_event_symbols(event, ev_name, args->flags.field);
- define_flag_field(ev_name, cur_field_name, args->flags.delim);
- define_flag_values(args->flags.flags, ev_name, cur_field_name);
- break;
- case PRINT_SYMBOL:
- define_event_symbols(event, ev_name, args->symbol.field);
- define_symbolic_field(ev_name, cur_field_name);
- define_symbolic_values(args->symbol.symbols, ev_name,
- cur_field_name);
- break;
- case PRINT_STRING:
- break;
- case PRINT_TYPE:
- define_event_symbols(event, ev_name, args->typecast.item);
- break;
- case PRINT_OP:
- if (strcmp(args->op.op, ":") == 0)
- zero_flag_atom = 1;
- define_event_symbols(event, ev_name, args->op.left);
- define_event_symbols(event, ev_name, args->op.right);
- break;
- default:
- /* we should warn... */
- return;
- }
-
- if (args->next)
- define_event_symbols(event, ev_name, args->next);
-}
-
-static inline struct event *find_cache_event(int type)
-{
- static char ev_name[256];
- struct event *event;
-
- if (events[type])
- return events[type];
-
- events[type] = event = trace_find_event(type);
- if (!event)
- return NULL;
-
- sprintf(ev_name, "%s::%s", event->system, event->name);
-
- define_event_symbols(event, ev_name, event->print_fmt.args);
-
- return event;
-}
-
-static void perl_process_event(int cpu, void *data,
- int size __unused,
- unsigned long long nsecs, char *comm)
-{
- struct format_field *field;
- static char handler[256];
- unsigned long long val;
- unsigned long s, ns;
- struct event *event;
- int type;
- int pid;
-
- dSP;
-
- type = trace_parse_common_type(data);
-
- event = find_cache_event(type);
- if (!event)
- die("ug! no event found for type %d", type);
-
- pid = trace_parse_common_pid(data);
-
- sprintf(handler, "%s::%s", event->system, event->name);
-
- s = nsecs / NSECS_PER_SEC;
- ns = nsecs - s * NSECS_PER_SEC;
-
- scripting_context->event_data = data;
-
- ENTER;
- SAVETMPS;
- PUSHMARK(SP);
-
- XPUSHs(sv_2mortal(newSVpv(handler, 0)));
- XPUSHs(sv_2mortal(newSViv(PTR2IV(scripting_context))));
- XPUSHs(sv_2mortal(newSVuv(cpu)));
- XPUSHs(sv_2mortal(newSVuv(s)));
- XPUSHs(sv_2mortal(newSVuv(ns)));
- XPUSHs(sv_2mortal(newSViv(pid)));
- XPUSHs(sv_2mortal(newSVpv(comm, 0)));
-
- /* common fields other than pid can be accessed via xsub fns */
-
- for (field = event->format.fields; field; field = field->next) {
- if (field->flags & FIELD_IS_STRING) {
- int offset;
- if (field->flags & FIELD_IS_DYNAMIC) {
- offset = *(int *)(data + field->offset);
- offset &= 0xffff;
- } else
- offset = field->offset;
- XPUSHs(sv_2mortal(newSVpv((char *)data + offset, 0)));
- } else { /* FIELD_IS_NUMERIC */
- val = read_size(data + field->offset, field->size);
- if (field->flags & FIELD_IS_SIGNED) {
- XPUSHs(sv_2mortal(newSViv(val)));
- } else {
- XPUSHs(sv_2mortal(newSVuv(val)));
- }
- }
- }
-
- PUTBACK;
-
- if (get_cv(handler, 0))
- call_pv(handler, G_SCALAR);
- else if (get_cv("main::trace_unhandled", 0)) {
- XPUSHs(sv_2mortal(newSVpv(handler, 0)));
- XPUSHs(sv_2mortal(newSViv(PTR2IV(scripting_context))));
- XPUSHs(sv_2mortal(newSVuv(cpu)));
- XPUSHs(sv_2mortal(newSVuv(nsecs)));
- XPUSHs(sv_2mortal(newSViv(pid)));
- XPUSHs(sv_2mortal(newSVpv(comm, 0)));
- call_pv("main::trace_unhandled", G_SCALAR);
- }
- SPAGAIN;
- PUTBACK;
- FREETMPS;
- LEAVE;
-}
-
-static void run_start_sub(void)
-{
- dSP; /* access to Perl stack */
- PUSHMARK(SP);
-
- if (get_cv("main::trace_begin", 0))
- call_pv("main::trace_begin", G_DISCARD | G_NOARGS);
-}
-
-/*
- * Start trace script
- */
-static int perl_start_script(const char *script, int argc, const char **argv)
-{
- const char **command_line;
- int i, err = 0;
-
- command_line = malloc((argc + 2) * sizeof(const char *));
- command_line[0] = "";
- command_line[1] = script;
- for (i = 2; i < argc + 2; i++)
- command_line[i] = argv[i - 2];
-
- my_perl = perl_alloc();
- perl_construct(my_perl);
-
- if (perl_parse(my_perl, xs_init, argc + 2, (char **)command_line,
- (char **)NULL)) {
- err = -1;
- goto error;
- }
-
- if (perl_run(my_perl)) {
- err = -1;
- goto error;
- }
-
- if (SvTRUE(ERRSV)) {
- err = -1;
- goto error;
- }
-
- run_start_sub();
-
- free(command_line);
- fprintf(stderr, "perf trace started with Perl script %s\n\n", script);
- return 0;
-error:
- perl_free(my_perl);
- free(command_line);
-
- return err;
-}
-
-/*
- * Stop trace script
- */
-static int perl_stop_script(void)
-{
- dSP; /* access to Perl stack */
- PUSHMARK(SP);
-
- if (get_cv("main::trace_end", 0))
- call_pv("main::trace_end", G_DISCARD | G_NOARGS);
-
- perl_destruct(my_perl);
- perl_free(my_perl);
-
- fprintf(stderr, "\nperf trace Perl script stopped\n");
-
- return 0;
-}
-
-static int perl_generate_script(const char *outfile)
-{
- struct event *event = NULL;
- struct format_field *f;
- char fname[PATH_MAX];
- int not_first, count;
- FILE *ofp;
-
- sprintf(fname, "%s.pl", outfile);
- ofp = fopen(fname, "w");
- if (ofp == NULL) {
- fprintf(stderr, "couldn't open %s\n", fname);
- return -1;
- }
-
- fprintf(ofp, "# perf trace event handlers, "
- "generated by perf trace -g perl\n");
-
- fprintf(ofp, "# Licensed under the terms of the GNU GPL"
- " License version 2\n\n");
-
- fprintf(ofp, "# The common_* event handler fields are the most useful "
- "fields common to\n");
-
- fprintf(ofp, "# all events. They don't necessarily correspond to "
- "the 'common_*' fields\n");
-
- fprintf(ofp, "# in the format files. Those fields not available as "
- "handler params can\n");
-
- fprintf(ofp, "# be retrieved using Perl functions of the form "
- "common_*($context).\n");
-
- fprintf(ofp, "# See Context.pm for the list of available "
- "functions.\n\n");
-
- fprintf(ofp, "use lib \"$ENV{'PERF_EXEC_PATH'}/scripts/perl/"
- "Perf-Trace-Util/lib\";\n");
-
- fprintf(ofp, "use lib \"./Perf-Trace-Util/lib\";\n");
- fprintf(ofp, "use Perf::Trace::Core;\n");
- fprintf(ofp, "use Perf::Trace::Context;\n");
- fprintf(ofp, "use Perf::Trace::Util;\n\n");
-
- fprintf(ofp, "sub trace_begin\n{\n\t# optional\n}\n\n");
- fprintf(ofp, "sub trace_end\n{\n\t# optional\n}\n\n");
-
- while ((event = trace_find_next_event(event))) {
- fprintf(ofp, "sub %s::%s\n{\n", event->system, event->name);
- fprintf(ofp, "\tmy (");
-
- fprintf(ofp, "$event_name, ");
- fprintf(ofp, "$context, ");
- fprintf(ofp, "$common_cpu, ");
- fprintf(ofp, "$common_secs, ");
- fprintf(ofp, "$common_nsecs,\n");
- fprintf(ofp, "\t $common_pid, ");
- fprintf(ofp, "$common_comm,\n\t ");
-
- not_first = 0;
- count = 0;
-
- for (f = event->format.fields; f; f = f->next) {
- if (not_first++)
- fprintf(ofp, ", ");
- if (++count % 5 == 0)
- fprintf(ofp, "\n\t ");
-
- fprintf(ofp, "$%s", f->name);
- }
- fprintf(ofp, ") = @_;\n\n");
-
- fprintf(ofp, "\tprint_header($event_name, $common_cpu, "
- "$common_secs, $common_nsecs,\n\t "
- "$common_pid, $common_comm);\n\n");
-
- fprintf(ofp, "\tprintf(\"");
-
- not_first = 0;
- count = 0;
-
- for (f = event->format.fields; f; f = f->next) {
- if (not_first++)
- fprintf(ofp, ", ");
- if (count && count % 4 == 0) {
- fprintf(ofp, "\".\n\t \"");
- }
- count++;
-
- fprintf(ofp, "%s=", f->name);
- if (f->flags & FIELD_IS_STRING ||
- f->flags & FIELD_IS_FLAG ||
- f->flags & FIELD_IS_SYMBOLIC)
- fprintf(ofp, "%%s");
- else if (f->flags & FIELD_IS_SIGNED)
- fprintf(ofp, "%%d");
- else
- fprintf(ofp, "%%u");
- }
-
- fprintf(ofp, "\\n\",\n\t ");
-
- not_first = 0;
- count = 0;
-
- for (f = event->format.fields; f; f = f->next) {
- if (not_first++)
- fprintf(ofp, ", ");
-
- if (++count % 5 == 0)
- fprintf(ofp, "\n\t ");
-
- if (f->flags & FIELD_IS_FLAG) {
- if ((count - 1) % 5 != 0) {
- fprintf(ofp, "\n\t ");
- count = 4;
- }
- fprintf(ofp, "flag_str(\"");
- fprintf(ofp, "%s::%s\", ", event->system,
- event->name);
- fprintf(ofp, "\"%s\", $%s)", f->name,
- f->name);
- } else if (f->flags & FIELD_IS_SYMBOLIC) {
- if ((count - 1) % 5 != 0) {
- fprintf(ofp, "\n\t ");
- count = 4;
- }
- fprintf(ofp, "symbol_str(\"");
- fprintf(ofp, "%s::%s\", ", event->system,
- event->name);
- fprintf(ofp, "\"%s\", $%s)", f->name,
- f->name);
- } else
- fprintf(ofp, "$%s", f->name);
- }
-
- fprintf(ofp, ");\n");
- fprintf(ofp, "}\n\n");
- }
-
- fprintf(ofp, "sub trace_unhandled\n{\n\tmy ($event_name, $context, "
- "$common_cpu, $common_secs, $common_nsecs,\n\t "
- "$common_pid, $common_comm) = @_;\n\n");
-
- fprintf(ofp, "\tprint_header($event_name, $common_cpu, "
- "$common_secs, $common_nsecs,\n\t $common_pid, "
- "$common_comm);\n}\n\n");
-
- fprintf(ofp, "sub print_header\n{\n"
- "\tmy ($event_name, $cpu, $secs, $nsecs, $pid, $comm) = @_;\n\n"
- "\tprintf(\"%%-20s %%5u %%05u.%%09u %%8u %%-20s \",\n\t "
- "$event_name, $cpu, $secs, $nsecs, $pid, $comm);\n}");
-
- fclose(ofp);
-
- fprintf(stderr, "generated Perl script: %s\n", fname);
-
- return 0;
-}
-
-struct scripting_ops perl_scripting_ops = {
- .name = "Perl",
- .start_script = perl_start_script,
- .stop_script = perl_stop_script,
- .process_event = perl_process_event,
- .generate_script = perl_generate_script,
-};
-
-static void print_unsupported_msg(void)
-{
- fprintf(stderr, "Perl scripting not supported."
- " Install libperl and rebuild perf to enable it.\n"
- "For example:\n # apt-get install libperl-dev (ubuntu)"
- "\n # yum install perl-ExtUtils-Embed (Fedora)"
- "\n etc.\n");
-}
-
-static int perl_start_script_unsupported(const char *script __unused,
- int argc __unused,
- const char **argv __unused)
-{
- print_unsupported_msg();
-
- return -1;
-}
-
-static int perl_stop_script_unsupported(void)
-{
- return 0;
-}
-
-static void perl_process_event_unsupported(int cpu __unused,
- void *data __unused,
- int size __unused,
- unsigned long long nsecs __unused,
- char *comm __unused)
-{
-}
-
-static int perl_generate_script_unsupported(const char *outfile __unused)
-{
- print_unsupported_msg();
-
- return -1;
-}
-
-struct scripting_ops perl_scripting_unsupported_ops = {
- .name = "Perl",
- .start_script = perl_start_script_unsupported,
- .stop_script = perl_stop_script_unsupported,
- .process_event = perl_process_event_unsupported,
- .generate_script = perl_generate_script_unsupported,
-};
-
-static void register_perl_scripting(struct scripting_ops *scripting_ops)
-{
- int err;
- err = script_spec_register("Perl", scripting_ops);
- if (err)
- die("error registering Perl script extension");
-
- err = script_spec_register("pl", scripting_ops);
- if (err)
- die("error registering pl script extension");
-
- scripting_context = malloc(sizeof(struct scripting_context));
-}
-
-#ifdef NO_LIBPERL
-void setup_perl_scripting(void)
-{
- register_perl_scripting(&perl_scripting_unsupported_ops);
-}
-#else
-void setup_perl_scripting(void)
-{
- register_perl_scripting(&perl_scripting_ops);
-}
-#endif
diff --git a/tools/perf/util/trace-event-perl.h b/tools/perf/util/trace-event-perl.h
deleted file mode 100644
index 01efcc9..0000000
--- a/tools/perf/util/trace-event-perl.h
+++ /dev/null
@@ -1,47 +0,0 @@
-#ifndef __PERF_TRACE_EVENT_PERL_H
-#define __PERF_TRACE_EVENT_PERL_H
-#ifdef NO_LIBPERL
-typedef int INTERP;
-#define dSP
-#define ENTER
-#define SAVETMPS
-#define PUTBACK
-#define SPAGAIN
-#define FREETMPS
-#define LEAVE
-#define SP
-#define ERRSV
-#define G_SCALAR (0)
-#define G_DISCARD (0)
-#define G_NOARGS (0)
-#define PUSHMARK(a)
-#define SvTRUE(a) (0)
-#define XPUSHs(s)
-#define sv_2mortal(a)
-#define newSVpv(a,b)
-#define newSVuv(a)
-#define newSViv(a)
-#define get_cv(a,b) (0)
-#define call_pv(a,b) (0)
-#define perl_alloc() (0)
-#define perl_construct(a) (0)
-#define perl_parse(a,b,c,d,e) (0)
-#define perl_run(a) (0)
-#define perl_destruct(a) (0)
-#define perl_free(a) (0)
-#define pTHX void
-#define CV void
-#define dXSUB_SYS
-#define pTHX_
-static inline void newXS(const char *a, void *b, const char *c) {}
-static void boot_Perf__Trace__Context(pTHX_ CV *cv) {}
-static void boot_DynaLoader(pTHX_ CV *cv) {}
-#else
-#include <EXTERN.h>
-#include <perl.h>
-void boot_Perf__Trace__Context(pTHX_ CV *cv);
-void boot_DynaLoader(pTHX_ CV *cv);
-typedef PerlInterpreter * INTERP;
-#endif
-
-#endif /* __PERF_TRACE_EVENT_PERL_H */
diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c
new file mode 100644
index 0000000..9e37196
--- /dev/null
+++ b/tools/perf/util/trace-event-scripting.c
@@ -0,0 +1,106 @@
+/*
+ * trace-event-scripting. Scripting engine common and initialization code.
+ *
+ * Copyright (C) 2009-2010 Tom Zanussi <tzanussi@...il.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+
+#include "../perf.h"
+#include "util.h"
+#include "trace-event.h"
+
+struct scripting_context *scripting_context;
+
+static int stop_script_unsupported(void)
+{
+ return 0;
+}
+
+static void process_event_unsupported(int cpu __unused,
+ void *data __unused,
+ int size __unused,
+ unsigned long long nsecs __unused,
+ char *comm __unused)
+{
+}
+
+static void print_perl_unsupported_msg(void)
+{
+ fprintf(stderr, "Perl scripting not supported."
+ " Install libperl and rebuild perf to enable it.\n"
+ "For example:\n # apt-get install libperl-dev (ubuntu)"
+ "\n # yum install 'perl(ExtUtils::Embed)' (Fedora)"
+ "\n etc.\n");
+}
+
+static int perl_start_script_unsupported(const char *script __unused,
+ int argc __unused,
+ const char **argv __unused)
+{
+ print_perl_unsupported_msg();
+
+ return -1;
+}
+
+static int perl_generate_script_unsupported(const char *outfile __unused)
+{
+ print_perl_unsupported_msg();
+
+ return -1;
+}
+
+struct scripting_ops perl_scripting_unsupported_ops = {
+ .name = "Perl",
+ .start_script = perl_start_script_unsupported,
+ .stop_script = stop_script_unsupported,
+ .process_event = process_event_unsupported,
+ .generate_script = perl_generate_script_unsupported,
+};
+
+static void register_perl_scripting(struct scripting_ops *scripting_ops)
+{
+ int err;
+ err = script_spec_register("Perl", scripting_ops);
+ if (err)
+ die("error registering Perl script extension");
+
+ err = script_spec_register("pl", scripting_ops);
+ if (err)
+ die("error registering pl script extension");
+
+ scripting_context = malloc(sizeof(struct scripting_context));
+}
+
+#ifdef NO_LIBPERL
+void setup_perl_scripting(void)
+{
+ register_perl_scripting(&perl_scripting_unsupported_ops);
+}
+#else
+struct scripting_ops perl_scripting_ops;
+
+void setup_perl_scripting(void)
+{
+ register_perl_scripting(&perl_scripting_ops);
+}
+#endif
--
1.6.4.GIT
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