linux/tools/perf/util/build-id.c
Zhang, Yanmin a1645ce12a perf: 'perf kvm' tool for monitoring guest performance from host
Here is the patch of userspace perf tool.

Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2010-04-19 12:37:24 +03:00

40 lines
934 B
C

/*
* build-id.c
*
* build-id support
*
* Copyright (C) 2009, 2010 Red Hat Inc.
* Copyright (C) 2009, 2010 Arnaldo Carvalho de Melo <acme@redhat.com>
*/
#include "build-id.h"
#include "event.h"
#include "symbol.h"
#include <linux/kernel.h>
static int build_id__mark_dso_hit(event_t *event, struct perf_session *session)
{
struct addr_location al;
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
struct thread *thread = perf_session__findnew(session, event->ip.pid);
if (thread == NULL) {
pr_err("problem processing %d event, skipping it.\n",
event->header.type);
return -1;
}
thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION,
event->ip.pid, event->ip.ip, &al);
if (al.map != NULL)
al.map->dso->hit = 1;
return 0;
}
struct perf_event_ops build_id__mark_dso_hit_ops = {
.sample = build_id__mark_dso_hit,
.mmap = event__process_mmap,
.fork = event__process_task,
};