From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- tools/lib/traceevent/plugins/plugin_kmem.c | 80 ++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 tools/lib/traceevent/plugins/plugin_kmem.c (limited to 'tools/lib/traceevent/plugins/plugin_kmem.c') diff --git a/tools/lib/traceevent/plugins/plugin_kmem.c b/tools/lib/traceevent/plugins/plugin_kmem.c new file mode 100644 index 000000000..4b4f7f961 --- /dev/null +++ b/tools/lib/traceevent/plugins/plugin_kmem.c @@ -0,0 +1,80 @@ +// SPDX-License-Identifier: LGPL-2.1 +/* + * Copyright (C) 2009 Red Hat Inc, Steven Rostedt + */ +#include +#include +#include + +#include "event-parse.h" +#include "trace-seq.h" + +static int call_site_handler(struct trace_seq *s, struct tep_record *record, + struct tep_event *event, void *context) +{ + struct tep_format_field *field; + unsigned long long val, addr; + void *data = record->data; + const char *func; + + field = tep_find_field(event, "call_site"); + if (!field) + return 1; + + if (tep_read_number_field(field, data, &val)) + return 1; + + func = tep_find_function(event->tep, val); + if (!func) + return 1; + + addr = tep_find_function_address(event->tep, val); + + trace_seq_printf(s, "(%s+0x%x) ", func, (int)(val - addr)); + return 1; +} + +int TEP_PLUGIN_LOADER(struct tep_handle *tep) +{ + tep_register_event_handler(tep, -1, "kmem", "kfree", + call_site_handler, NULL); + + tep_register_event_handler(tep, -1, "kmem", "kmalloc", + call_site_handler, NULL); + + tep_register_event_handler(tep, -1, "kmem", "kmalloc_node", + call_site_handler, NULL); + + tep_register_event_handler(tep, -1, "kmem", "kmem_cache_alloc", + call_site_handler, NULL); + + tep_register_event_handler(tep, -1, "kmem", + "kmem_cache_alloc_node", + call_site_handler, NULL); + + tep_register_event_handler(tep, -1, "kmem", "kmem_cache_free", + call_site_handler, NULL); + return 0; +} + +void TEP_PLUGIN_UNLOADER(struct tep_handle *tep) +{ + tep_unregister_event_handler(tep, -1, "kmem", "kfree", + call_site_handler, NULL); + + tep_unregister_event_handler(tep, -1, "kmem", "kmalloc", + call_site_handler, NULL); + + tep_unregister_event_handler(tep, -1, "kmem", "kmalloc_node", + call_site_handler, NULL); + + tep_unregister_event_handler(tep, -1, "kmem", "kmem_cache_alloc", + call_site_handler, NULL); + + tep_unregister_event_handler(tep, -1, "kmem", + "kmem_cache_alloc_node", + call_site_handler, NULL); + + tep_unregister_event_handler(tep, -1, "kmem", "kmem_cache_free", + call_site_handler, NULL); +} -- cgit v1.2.3