Backporting kmem plugin. Signed-off-by: Jiri Olsa <jo...@redhat.com> Cc: Corey Ashford <cjash...@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweis...@gmail.com> Cc: Ingo Molnar <mi...@elte.hu> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Paul Mackerras <pau...@samba.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Arnaldo Carvalho de Melo <a...@redhat.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: David Ahern <dsah...@gmail.com> --- tools/lib/traceevent/Makefile | 2 +- tools/lib/traceevent/plugin_kmem.c | 76 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 77 insertions(+), 1 deletion(-) create mode 100644 tools/lib/traceevent/plugin_kmem.c
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile index 6e29f26..8e391bc 100644 --- a/tools/lib/traceevent/Makefile +++ b/tools/lib/traceevent/Makefile @@ -208,7 +208,7 @@ $(obj)/%.o: $(src)/%.c PEVENT_LIB_OBJS = event-parse.o event-plugin.o trace-seq.o parse-filter.o parse-utils.o event-option.o PEVENT_LIB_OBJS += kbuffer-parse.o -PLUGIN_OBJS = plugin_jbd2.o plugin_blk.o plugin_hrtimer.o +PLUGIN_OBJS = plugin_jbd2.o plugin_blk.o plugin_hrtimer.o plugin_kmem.o PLUGINS := $(PLUGIN_OBJS:.o=.so) diff --git a/tools/lib/traceevent/plugin_kmem.c b/tools/lib/traceevent/plugin_kmem.c new file mode 100644 index 0000000..0f8323c --- /dev/null +++ b/tools/lib/traceevent/plugin_kmem.c @@ -0,0 +1,76 @@ +/* + * Copyright (C) 2009 Red Hat Inc, Steven Rostedt <srost...@redhat.com> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License (not later!) + * + * 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, see <http://www.gnu.org/licenses> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "event-parse.h" + +static int call_site_handler(struct trace_seq *s, struct pevent_record *record, + struct event_format *event, void *context) +{ + struct format_field *field; + unsigned long long val, addr; + void *data = record->data; + const char *func; + + field = pevent_find_field(event, "call_site"); + if (!field) + return 1; + + if (pevent_read_number_field(field, data, &val)) + return 1; + + func = pevent_find_function(event->pevent, val); + if (!func) + return 1; + addr = pevent_find_function_address(event->pevent, val); + + trace_seq_printf(s, "(%s+0x%x) ", func, (int)(val - addr)); + + return 1; +} + +int PEVENT_PLUGIN_LOADER(struct pevent *pevent) +{ + pevent_register_event_handler(pevent, -1, "kmem", "kfree", + call_site_handler, NULL); + + pevent_register_event_handler(pevent, -1, "kmem", "kmalloc", + call_site_handler, NULL); + + pevent_register_event_handler(pevent, -1, "kmem", "kmalloc_node", + call_site_handler, NULL); + + pevent_register_event_handler(pevent, -1, "kmem", "kmem_cache_alloc", + call_site_handler, NULL); + + pevent_register_event_handler(pevent, -1, "kmem", + "kmem_cache_alloc_node", + call_site_handler, NULL); + + pevent_register_event_handler(pevent, -1, "kmem", "kfree", + call_site_handler, NULL); + + pevent_register_event_handler(pevent, -1, "kmem", "kmem_cache_free", + call_site_handler, NULL); + + return 0; +} -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
