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Date: Wed, 17 Jul 2013 15:43:07 +0300
From: Adrian Hunter <adrian.hunter@...el.com>
To: Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc: linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>,
Frederic Weisbecker <fweisbec@...il.com>,
Jiri Olsa <jolsa@...hat.com>, Mike Galbraith <efault@....de>,
Namhyung Kim <namhyung@...il.com>,
Paul Mackerras <paulus@...ba.org>,
Peter Zijlstra <peterz@...radead.org>,
Stephane Eranian <eranian@...gle.com>,
Ingo Molnar <mingo@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>
Subject: [PATCH V7 07/14] perf tools: remove references to struct ip_event
struct ip_event assumes fixeed positions for ip, pid
and tid. That is no longer true with the addition of
PERF_SAMPLE_IDENTIFIER. The information is anyway in
struct sample, so use that instead.
Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
tools/perf/builtin-inject.c | 4 ++--
tools/perf/builtin-kmem.c | 4 ++--
tools/perf/builtin-mem.c | 2 +-
tools/perf/builtin-script.c | 4 ++--
tools/perf/builtin-top.c | 11 +++++----
tools/perf/tests/hists_link.c | 4 ++++
tools/perf/util/build-id.c | 8 +++----
tools/perf/util/event.c | 6 ++---
tools/perf/util/evsel.c | 56 +++++++++++++++++++------------------------
tools/perf/util/session.c | 8 ++++---
10 files changed, 53 insertions(+), 54 deletions(-)
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 0d4ae1d..ffacd46 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -198,7 +198,7 @@ static int perf_event__inject_buildid(struct perf_tool *tool,
cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
- thread = machine__findnew_thread(machine, event->ip.pid, event->ip.pid);
+ thread = machine__findnew_thread(machine, sample->pid, sample->pid);
if (thread == NULL) {
pr_err("problem processing %d event, skipping it.\n",
event->header.type);
@@ -206,7 +206,7 @@ static int perf_event__inject_buildid(struct perf_tool *tool,
}
thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION,
- event->ip.ip, &al);
+ sample->ip, &al);
if (al.map != NULL) {
if (!al.map->dso->hit) {
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index c324778..c2dff9c 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -305,8 +305,8 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
struct perf_evsel *evsel,
struct machine *machine)
{
- struct thread *thread = machine__findnew_thread(machine, event->ip.pid,
- event->ip.pid);
+ struct thread *thread = machine__findnew_thread(machine, sample->pid,
+ sample->pid);
if (thread == NULL) {
pr_debug("problem processing %d event, skipping it.\n",
diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index a8ff6d2..4274680 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -96,7 +96,7 @@ dump_raw_samples(struct perf_tool *tool,
symbol_conf.field_sep,
sample->tid,
symbol_conf.field_sep,
- event->ip.ip,
+ sample->ip,
symbol_conf.field_sep,
sample->addr,
symbol_conf.field_sep,
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index b094b33..05e1db2 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -480,8 +480,8 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
struct machine *machine)
{
struct addr_location al;
- struct thread *thread = machine__findnew_thread(machine, event->ip.pid,
- event->ip.tid);
+ struct thread *thread = machine__findnew_thread(machine, sample->pid,
+ sample->tid);
if (thread == NULL) {
pr_debug("problem processing %d event, skipping it.\n",
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index bbf4635..0ecec5f 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -690,7 +690,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
{
struct perf_top *top = container_of(tool, struct perf_top, tool);
struct symbol *parent = NULL;
- u64 ip = event->ip.ip;
+ u64 ip = sample->ip;
struct addr_location al;
int err;
@@ -700,10 +700,10 @@ static void perf_event__process_sample(struct perf_tool *tool,
if (!seen)
seen = intlist__new(NULL);
- if (!intlist__has_entry(seen, event->ip.pid)) {
+ if (!intlist__has_entry(seen, sample->pid)) {
pr_err("Can't find guest [%d]'s kernel information\n",
- event->ip.pid);
- intlist__add(seen, event->ip.pid);
+ sample->pid);
+ intlist__add(seen, sample->pid);
}
return;
}
@@ -838,7 +838,8 @@ static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
break;
case PERF_RECORD_MISC_GUEST_KERNEL:
++top->guest_kernel_samples;
- machine = perf_session__find_machine(session, event->ip.pid);
+ machine = perf_session__find_machine(session,
+ sample.pid);
break;
case PERF_RECORD_MISC_GUEST_USER:
++top->guest_us_samples;
diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c
index 5a178d5..7e0ca15 100644
--- a/tools/perf/tests/hists_link.c
+++ b/tools/perf/tests/hists_link.c
@@ -220,6 +220,8 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
},
};
+ sample.pid = ip_event.ip.pid;
+ sample.ip = ip_event.ip.ip;
if (perf_event__preprocess_sample(&event, machine, &al,
&sample, 0) < 0)
goto out;
@@ -244,6 +246,8 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
},
};
+ sample.pid = ip_event.ip.pid;
+ sample.ip = ip_event.ip.ip;
if (perf_event__preprocess_sample(&event, machine, &al,
&sample, 0) < 0)
goto out;
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 0f9d27a..fb58409 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -18,14 +18,14 @@
int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused,
union perf_event *event,
- struct perf_sample *sample __maybe_unused,
+ struct perf_sample *sample,
struct perf_evsel *evsel __maybe_unused,
struct machine *machine)
{
struct addr_location al;
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
- struct thread *thread = machine__findnew_thread(machine, event->ip.pid,
- event->ip.pid);
+ struct thread *thread = machine__findnew_thread(machine, sample->pid,
+ sample->pid);
if (thread == NULL) {
pr_err("problem processing %d event, skipping it.\n",
@@ -34,7 +34,7 @@ int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused,
}
thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION,
- event->ip.ip, &al);
+ sample->ip, &al);
if (al.map != NULL)
al.map->dso->hit = 1;
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index ec494a3..6861d19 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -677,8 +677,8 @@ int perf_event__preprocess_sample(const union perf_event *event,
symbol_filter_t filter)
{
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
- struct thread *thread = machine__findnew_thread(machine, event->ip.pid,
- event->ip.pid);
+ struct thread *thread = machine__findnew_thread(machine, sample->pid,
+ sample->pid);
if (thread == NULL)
return -1;
@@ -700,7 +700,7 @@ int perf_event__preprocess_sample(const union perf_event *event,
machine__create_kernel_maps(machine);
thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION,
- event->ip.ip, al);
+ sample->ip, al);
dump_printf(" ...... dso: %s\n",
al->map ? al->map->dso->long_name :
al->level == 'H' ? "[hypervisor]" : "<not found>");
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 20e2ed9..3312e15 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1114,28 +1114,20 @@ static int perf_evsel__parse_id_sample(const struct perf_evsel *evsel,
return 0;
}
-static inline bool overflow_one(const void *endp, const void *offset)
-{
- return offset + sizeof(u64) > endp;
-}
-
static inline bool overflow(const void *endp, u16 max_size, const void *offset,
u64 size)
{
return size > max_size || offset + size > endp;
}
-#define OVERFLOW_CHECK_ONE(offset) \
- do { \
- if (overflow_one(endp, (offset))) \
- return -EFAULT; \
+#define OVERFLOW_CHECK(offset, size, max_size) \
+ do { \
+ if (overflow(endp, (max_size), (offset), (size))) \
+ return -EFAULT; \
} while (0)
-#define OVERFLOW_CHECK(offset, size) \
- do { \
- if (overflow(endp, max_size, (offset), (size))) \
- return -EFAULT; \
- } while (0)
+#define OVERFLOW_CHECK_u64(offset) \
+ OVERFLOW_CHECK(offset, sizeof(u64), sizeof(u64))
int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
struct perf_sample *data)
@@ -1168,15 +1160,15 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
array = event->sample.array;
/*
- * sample_size is based on PERF_SAMPLE_MASK which includes up to
- * PERF_SAMPLE_PERIOD. After that overflow_one() or overflow() must be
- * used to check the format does not go past the end of the event.
+ * The evsel's sample_size is based on PERF_SAMPLE_MASK which includes
+ * up to PERF_SAMPLE_PERIOD. After that overflow() must be used to
+ * check the format does not go past the end of the event.
*/
if (evsel->sample_size + sizeof(event->header) > event->header.size)
return -EFAULT;
if (type & PERF_SAMPLE_IP) {
- data->ip = event->ip.ip;
+ data->ip = *array;
array++;
}
@@ -1242,17 +1234,17 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
if (type & PERF_SAMPLE_CALLCHAIN) {
const u64 max_callchain_nr = UINT64_MAX / sizeof(u64);
- OVERFLOW_CHECK_ONE(array);
+ OVERFLOW_CHECK_u64(array);
data->callchain = (struct ip_callchain *)array++;
if (data->callchain->nr > max_callchain_nr)
return -EFAULT;
sz = data->callchain->nr * sizeof(u64);
- OVERFLOW_CHECK(array, sz);
+ OVERFLOW_CHECK(array, sz, max_size);
array = (void *)array + sz;
}
if (type & PERF_SAMPLE_RAW) {
- OVERFLOW_CHECK_ONE(array);
+ OVERFLOW_CHECK_u64(array);
u.val64 = *array;
if (WARN_ONCE(swapped,
"Endianness of raw data not corrected!\n")) {
@@ -1264,7 +1256,7 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
data->raw_size = u.val32[0];
array = (void *)array + sizeof(u32);
- OVERFLOW_CHECK(array, data->raw_size);
+ OVERFLOW_CHECK(array, data->raw_size, max_size);
data->raw_data = (void *)array;
array = (void *)array + data->raw_size;
}
@@ -1273,13 +1265,13 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
const u64 max_branch_nr = UINT64_MAX /
sizeof(struct branch_entry);
- OVERFLOW_CHECK_ONE(array);
+ OVERFLOW_CHECK_u64(array);
data->branch_stack = (struct branch_stack *)array++;
if (data->branch_stack->nr > max_branch_nr)
return -EFAULT;
sz = data->branch_stack->nr * sizeof(struct branch_entry);
- OVERFLOW_CHECK(array, sz);
+ OVERFLOW_CHECK(array, sz, max_size);
array = (void *)array + sz;
}
@@ -1287,21 +1279,21 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
u64 avail;
/* First u64 tells us if we have any regs in sample. */
- OVERFLOW_CHECK_ONE(array);
+ OVERFLOW_CHECK_u64(array);
avail = *array++;
if (avail) {
u64 regs_user = evsel->attr.sample_regs_user;
sz = hweight_long(regs_user) * sizeof(u64);
- OVERFLOW_CHECK(array, sz);
+ OVERFLOW_CHECK(array, sz, max_size);
data->user_regs.regs = (u64 *)array;
array = (void *)array + sz;
}
}
if (type & PERF_SAMPLE_STACK_USER) {
- OVERFLOW_CHECK_ONE(array);
+ OVERFLOW_CHECK_u64(array);
sz = *array++;
data->user_stack.offset = ((char *)(array - 1)
@@ -1310,24 +1302,24 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
if (!sz) {
data->user_stack.size = 0;
} else {
- OVERFLOW_CHECK(array, sz);
+ OVERFLOW_CHECK(array, sz, max_size);
data->user_stack.data = (char *)array;
array = (void *)array + sz;
- OVERFLOW_CHECK_ONE(array);
+ OVERFLOW_CHECK_u64(array);
data->user_stack.size = *array++;
}
}
data->weight = 0;
if (type & PERF_SAMPLE_WEIGHT) {
- OVERFLOW_CHECK_ONE(array);
+ OVERFLOW_CHECK_u64(array);
data->weight = *array;
array++;
}
data->data_src = PERF_MEM_DATA_SRC_NONE;
if (type & PERF_SAMPLE_DATA_SRC) {
- OVERFLOW_CHECK_ONE(array);
+ OVERFLOW_CHECK_u64(array);
data->data_src = *array;
array++;
}
@@ -1350,7 +1342,7 @@ int perf_event__synthesize_sample(union perf_event *event, u64 type,
array = event->sample.array;
if (type & PERF_SAMPLE_IP) {
- event->ip.ip = sample->ip;
+ *array = sample->ip;
array++;
}
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 1b07d7a..eea5eef 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -802,7 +802,8 @@ static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
static struct machine *
perf_session__find_machine_for_cpumode(struct perf_session *session,
- union perf_event *event)
+ union perf_event *event,
+ struct perf_sample *sample)
{
const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
@@ -814,7 +815,7 @@ static struct machine *
if (event->header.type == PERF_RECORD_MMAP)
pid = event->mmap.pid;
else
- pid = event->ip.pid;
+ pid = sample->pid;
return perf_session__findnew_machine(session, pid);
}
@@ -851,7 +852,8 @@ static int perf_session_deliver_event(struct perf_session *session,
hists__inc_nr_events(&evsel->hists, event->header.type);
}
- machine = perf_session__find_machine_for_cpumode(session, event);
+ machine = perf_session__find_machine_for_cpumode(session, event,
+ sample);
switch (event->header.type) {
case PERF_RECORD_SAMPLE:
--
1.7.11.7
--
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