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perf tools: Resolve machine earlier and pass it to perf_event_ops

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Reducing the exposure of perf_session further, so that we can use the
classes in cases where no perf.data file is created.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-stua66dcscsezzrcdugvbmvd@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2011-11-28 07:56:39 -02:00
parent d20deb64e0
commit 743eb86865
24 changed files with 377 additions and 376 deletions
Download Patch File Download Diff File Expand all files Collapse all files

151
tools/perf/util/event.c
View File

@@ -1,7 +1,6 @@
#include <linux/types.h>
#include "event.h"
#include "debug.h"
#include "session.h"
#include "sort.h"
#include "string.h"
#include "strlist.h"
@@ -47,7 +46,7 @@ static struct perf_sample synth_sample = {
static pid_t perf_event__synthesize_comm(struct perf_event_ops *ops,
union perf_event *event, pid_t pid,
int full, perf_event__handler_t process,
struct perf_session *session)
struct machine *machine)
{
char filename[PATH_MAX];
char bf[BUFSIZ];
@@ -93,14 +92,14 @@ out_race:
event->comm.header.type = PERF_RECORD_COMM;
size = ALIGN(size, sizeof(u64));
memset(event->comm.comm + size, 0, session->id_hdr_size);
memset(event->comm.comm + size, 0, machine->id_hdr_size);
event->comm.header.size = (sizeof(event->comm) -
(sizeof(event->comm.comm) - size) +
session->id_hdr_size);
machine->id_hdr_size);
if (!full) {
event->comm.tid = pid;
process(ops, event, &synth_sample, session);
process(ops, event, &synth_sample, machine);
goto out;
}
@@ -118,7 +117,7 @@ out_race:
event->comm.tid = pid;
process(ops, event, &synth_sample, session);
process(ops, event, &synth_sample, machine);
}
closedir(tasks);
@@ -132,7 +131,7 @@ static int perf_event__synthesize_mmap_events(struct perf_event_ops *ops,
union perf_event *event,
pid_t pid, pid_t tgid,
perf_event__handler_t process,
struct perf_session *session)
struct machine *machine)
{
char filename[PATH_MAX];
FILE *fp;
@@ -195,12 +194,12 @@ static int perf_event__synthesize_mmap_events(struct perf_event_ops *ops,
event->mmap.len -= event->mmap.start;
event->mmap.header.size = (sizeof(event->mmap) -
(sizeof(event->mmap.filename) - size));
memset(event->mmap.filename + size, 0, session->id_hdr_size);
event->mmap.header.size += session->id_hdr_size;
memset(event->mmap.filename + size, 0, machine->id_hdr_size);
event->mmap.header.size += machine->id_hdr_size;
event->mmap.pid = tgid;
event->mmap.tid = pid;
process(ops, event, &synth_sample, session);
process(ops, event, &synth_sample, machine);
}
}
@@ -210,13 +209,12 @@ static int perf_event__synthesize_mmap_events(struct perf_event_ops *ops,
int perf_event__synthesize_modules(struct perf_event_ops *ops,
perf_event__handler_t process,
struct perf_session *session,
struct machine *machine)
{
struct rb_node *nd;
struct map_groups *kmaps = &machine->kmaps;
union perf_event *event = zalloc((sizeof(event->mmap) +
session->id_hdr_size));
machine->id_hdr_size));
if (event == NULL) {
pr_debug("Not enough memory synthesizing mmap event "
"for kernel modules\n");
@@ -246,15 +244,15 @@ int perf_event__synthesize_modules(struct perf_event_ops *ops,
event->mmap.header.type = PERF_RECORD_MMAP;
event->mmap.header.size = (sizeof(event->mmap) -
(sizeof(event->mmap.filename) - size));
memset(event->mmap.filename + size, 0, session->id_hdr_size);
event->mmap.header.size += session->id_hdr_size;
memset(event->mmap.filename + size, 0, machine->id_hdr_size);
event->mmap.header.size += machine->id_hdr_size;
event->mmap.start = pos->start;
event->mmap.len = pos->end - pos->start;
event->mmap.pid = machine->pid;
memcpy(event->mmap.filename, pos->dso->long_name,
pos->dso->long_name_len + 1);
process(ops, event, &synth_sample, session);
process(ops, event, &synth_sample, machine);
}
free(event);
@@ -265,29 +263,29 @@ static int __event__synthesize_thread(union perf_event *comm_event,
union perf_event *mmap_event,
pid_t pid, perf_event__handler_t process,
struct perf_event_ops *ops,
struct perf_session *session)
struct machine *machine)
{
pid_t tgid = perf_event__synthesize_comm(ops, comm_event, pid, 1, process,
session);
pid_t tgid = perf_event__synthesize_comm(ops, comm_event, pid, 1,
process, machine);
if (tgid == -1)
return -1;
return perf_event__synthesize_mmap_events(ops, mmap_event, pid, tgid,
process, session);
process, machine);
}
int perf_event__synthesize_thread_map(struct perf_event_ops *ops,
struct thread_map *threads,
perf_event__handler_t process,
struct perf_session *session)
struct machine *machine)
{
union perf_event *comm_event, *mmap_event;
int err = -1, thread;
comm_event = malloc(sizeof(comm_event->comm) + session->id_hdr_size);
comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size);
if (comm_event == NULL)
goto out;
mmap_event = malloc(sizeof(mmap_event->mmap) + session->id_hdr_size);
mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size);
if (mmap_event == NULL)
goto out_free_comm;
@@ -295,7 +293,7 @@ int perf_event__synthesize_thread_map(struct perf_event_ops *ops,
for (thread = 0; thread < threads->nr; ++thread) {
if (__event__synthesize_thread(comm_event, mmap_event,
threads->map[thread],
process, ops, session)) {
process, ops, machine)) {
err = -1;
break;
}
@@ -309,18 +307,18 @@ out:
int perf_event__synthesize_threads(struct perf_event_ops *ops,
perf_event__handler_t process,
struct perf_session *session)
struct machine *machine)
{
DIR *proc;
struct dirent dirent, *next;
union perf_event *comm_event, *mmap_event;
int err = -1;
comm_event = malloc(sizeof(comm_event->comm) + session->id_hdr_size);
comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size);
if (comm_event == NULL)
goto out;
mmap_event = malloc(sizeof(mmap_event->mmap) + session->id_hdr_size);
mmap_event = malloc(sizeof(mmap_event->mmap) + machine->id_hdr_size);
if (mmap_event == NULL)
goto out_free_comm;
@@ -336,7 +334,7 @@ int perf_event__synthesize_threads(struct perf_event_ops *ops,
continue;
__event__synthesize_thread(comm_event, mmap_event, pid,
process, ops, session);
process, ops, machine);
}
closedir(proc);
@@ -373,7 +371,6 @@ static int find_symbol_cb(void *arg, const char *name, char type,
int perf_event__synthesize_kernel_mmap(struct perf_event_ops *ops,
perf_event__handler_t process,
struct perf_session *session,
struct machine *machine,
const char *symbol_name)
{
@@ -390,7 +387,7 @@ int perf_event__synthesize_kernel_mmap(struct perf_event_ops *ops,
*/
struct process_symbol_args args = { .name = symbol_name, };
union perf_event *event = zalloc((sizeof(event->mmap) +
session->id_hdr_size));
machine->id_hdr_size));
if (event == NULL) {
pr_debug("Not enough memory synthesizing mmap event "
"for kernel modules\n");
@@ -424,13 +421,13 @@ int perf_event__synthesize_kernel_mmap(struct perf_event_ops *ops,
size = ALIGN(size, sizeof(u64));
event->mmap.header.type = PERF_RECORD_MMAP;
event->mmap.header.size = (sizeof(event->mmap) -
(sizeof(event->mmap.filename) - size) + session->id_hdr_size);
(sizeof(event->mmap.filename) - size) + machine->id_hdr_size);
event->mmap.pgoff = args.start;
event->mmap.start = map->start;
event->mmap.len = map->end - event->mmap.start;
event->mmap.pid = machine->pid;
err = process(ops, event, &synth_sample, session);
err = process(ops, event, &synth_sample, machine);
free(event);
return err;
@@ -439,9 +436,9 @@ int perf_event__synthesize_kernel_mmap(struct perf_event_ops *ops,
int perf_event__process_comm(struct perf_event_ops *ops __used,
union perf_event *event,
struct perf_sample *sample __used,
struct perf_session *session)
struct machine *machine)
{
struct thread *thread = perf_session__findnew(session, event->comm.tid);
struct thread *thread = machine__findnew_thread(machine, event->comm.tid);
dump_printf(": %s:%d\n", event->comm.comm, event->comm.tid);
@@ -456,11 +453,10 @@ int perf_event__process_comm(struct perf_event_ops *ops __used,
int perf_event__process_lost(struct perf_event_ops *ops __used,
union perf_event *event,
struct perf_sample *sample __used,
struct perf_session *session)
struct machine *machine __used)
{
dump_printf(": id:%" PRIu64 ": lost:%" PRIu64 "\n",
event->lost.id, event->lost.lost);
session->hists.stats.total_lost += event->lost.lost;
return 0;
}
@@ -479,20 +475,13 @@ static void perf_event__set_kernel_mmap_len(union perf_event *event,
static int perf_event__process_kernel_mmap(struct perf_event_ops *ops __used,
union perf_event *event,
struct perf_session *session)
struct machine *machine)
{
struct map *map;
char kmmap_prefix[PATH_MAX];
struct machine *machine;
enum dso_kernel_type kernel_type;
bool is_kernel_mmap;
machine = perf_session__findnew_machine(session, event->mmap.pid);
if (!machine) {
pr_err("Can't find id %d's machine\n", event->mmap.pid);
goto out_problem;
}
machine__mmap_name(machine, kmmap_prefix, sizeof(kmmap_prefix));
if (machine__is_host(machine))
kernel_type = DSO_TYPE_KERNEL;
@@ -559,9 +548,9 @@ static int perf_event__process_kernel_mmap(struct perf_event_ops *ops __used,
* time /proc/sys/kernel/kptr_restrict was non zero.
*/
if (event->mmap.pgoff != 0) {
perf_session__set_kallsyms_ref_reloc_sym(machine->vmlinux_maps,
symbol_name,
event->mmap.pgoff);
maps__set_kallsyms_ref_reloc_sym(machine->vmlinux_maps,
symbol_name,
event->mmap.pgoff);
}
if (machine__is_default_guest(machine)) {
@@ -580,9 +569,8 @@ out_problem:
int perf_event__process_mmap(struct perf_event_ops *ops,
union perf_event *event,
struct perf_sample *sample __used,
struct perf_session *session)
struct machine *machine)
{
struct machine *machine;
struct thread *thread;
struct map *map;
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
@@ -594,16 +582,13 @@ int perf_event__process_mmap(struct perf_event_ops *ops,
if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL ||
cpumode == PERF_RECORD_MISC_KERNEL) {
ret = perf_event__process_kernel_mmap(ops, event, session);
ret = perf_event__process_kernel_mmap(ops, event, machine);
if (ret < 0)
goto out_problem;
return 0;
}
machine = perf_session__find_host_machine(session);
if (machine == NULL)
goto out_problem;
thread = perf_session__findnew(session, event->mmap.pid);
thread = machine__findnew_thread(machine, event->mmap.pid);
if (thread == NULL)
goto out_problem;
map = map__new(&machine->user_dsos, event->mmap.start,
@@ -624,16 +609,16 @@ out_problem:
int perf_event__process_task(struct perf_event_ops *ops __used,
union perf_event *event,
struct perf_sample *sample __used,
struct perf_session *session)
struct machine *machine)
{
struct thread *thread = perf_session__findnew(session, event->fork.tid);
struct thread *parent = perf_session__findnew(session, event->fork.ptid);
struct thread *thread = machine__findnew_thread(machine, event->fork.tid);
struct thread *parent = machine__findnew_thread(machine, event->fork.ptid);
dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid,
event->fork.ppid, event->fork.ptid);
if (event->header.type == PERF_RECORD_EXIT) {
perf_session__remove_thread(session, thread);
machine__remove_thread(machine, thread);
return 0;
}
@@ -647,21 +632,21 @@ int perf_event__process_task(struct perf_event_ops *ops __used,
}
int perf_event__process(struct perf_event_ops *ops, union perf_event *event,
struct perf_sample *sample, struct perf_session *session)
struct perf_sample *sample, struct machine *machine)
{
switch (event->header.type) {
case PERF_RECORD_COMM:
perf_event__process_comm(ops, event, sample, session);
perf_event__process_comm(ops, event, sample, machine);
break;
case PERF_RECORD_MMAP:
perf_event__process_mmap(ops, event, sample, session);
perf_event__process_mmap(ops, event, sample, machine);
break;
case PERF_RECORD_FORK:
case PERF_RECORD_EXIT:
perf_event__process_task(ops, event, sample, session);
perf_event__process_task(ops, event, sample, machine);
break;
case PERF_RECORD_LOST:
perf_event__process_lost(ops, event, sample, session);
perf_event__process_lost(ops, event, sample, machine);
default:
break;
}
@@ -670,36 +655,29 @@ int perf_event__process(struct perf_event_ops *ops, union perf_event *event,
}
void thread__find_addr_map(struct thread *self,
struct perf_session *session, u8 cpumode,
enum map_type type, pid_t pid, u64 addr,
struct machine *machine, u8 cpumode,
enum map_type type, u64 addr,
struct addr_location *al)
{
struct map_groups *mg = &self->mg;
struct machine *machine = NULL;
al->thread = self;
al->addr = addr;
al->cpumode = cpumode;
al->filtered = false;
if (machine == NULL) {
al->map = NULL;
return;
}
if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
al->level = 'k';
machine = perf_session__find_host_machine(session);
if (machine == NULL) {
al->map = NULL;
return;
}
mg = &machine->kmaps;
} else if (cpumode == PERF_RECORD_MISC_USER && perf_host) {
al->level = '.';
machine = perf_session__find_host_machine(session);
} else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) {
al->level = 'g';
machine = perf_session__find_machine(session, pid);
if (machine == NULL) {
al->map = NULL;
return;
}
mg = &machine->kmaps;
} else {
/*
@@ -745,13 +723,12 @@ try_again:
al->addr = al->map->map_ip(al->map, al->addr);
}
void thread__find_addr_location(struct thread *self,
struct perf_session *session, u8 cpumode,
enum map_type type, pid_t pid, u64 addr,
void thread__find_addr_location(struct thread *thread, struct machine *machine,
u8 cpumode, enum map_type type, u64 addr,
struct addr_location *al,
symbol_filter_t filter)
{
thread__find_addr_map(self, session, cpumode, type, pid, addr, al);
thread__find_addr_map(thread, machine, cpumode, type, addr, al);
if (al->map != NULL)
al->sym = map__find_symbol(al->map, al->addr, filter);
else
@@ -759,13 +736,13 @@ void thread__find_addr_location(struct thread *self,
}
int perf_event__preprocess_sample(const union perf_event *event,
struct perf_session *session,
struct machine *machine,
struct addr_location *al,
struct perf_sample *sample,
symbol_filter_t filter)
{
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
struct thread *thread = perf_session__findnew(session, event->ip.pid);
struct thread *thread = machine__findnew_thread(machine, event->ip.pid);
if (thread == NULL)
return -1;
@@ -776,18 +753,18 @@ int perf_event__preprocess_sample(const union perf_event *event,
dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
/*
* Have we already created the kernel maps for the host machine?
* Have we already created the kernel maps for this machine?
*
* This should have happened earlier, when we processed the kernel MMAP
* events, but for older perf.data files there was no such thing, so do
* it now.
*/
if (cpumode == PERF_RECORD_MISC_KERNEL &&
session->host_machine.vmlinux_maps[MAP__FUNCTION] == NULL)
machine__create_kernel_maps(&session->host_machine);
machine->vmlinux_maps[MAP__FUNCTION] == NULL)
machine__create_kernel_maps(machine);
thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION,
event->ip.pid, event->ip.ip, al);
thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION,
event->ip.ip, al);
dump_printf(" ...... dso: %s\n",
al->map ? al->map->dso->long_name :
al->level == 'H' ? "[hypervisor]" : "<not found>");