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-rw-r--r--arch/x86/include/asm/nmi.h1
-rw-r--r--arch/x86/kernel/cpu/perfctr-watchdog.c11
-rw-r--r--include/linux/ftrace_event.h2
-rw-r--r--include/linux/perf_event.h14
-rw-r--r--include/linux/syscalls.h4
-rw-r--r--include/trace/ftrace.h12
-rw-r--r--include/trace/syscall.h4
-rw-r--r--init/Kconfig13
-rw-r--r--kernel/perf_event.c31
-rw-r--r--kernel/sched.c6
-rw-r--r--kernel/trace/Makefile4
-rw-r--r--kernel/trace/trace_events_filter.c4
-rw-r--r--kernel/trace/trace_kprobe.c14
-rw-r--r--kernel/trace/trace_syscalls.c5
-rw-r--r--tools/perf/Makefile3
-rw-r--r--tools/perf/builtin-annotate.c8
-rw-r--r--tools/perf/builtin-diff.c70
-rw-r--r--tools/perf/builtin-help.c3
-rw-r--r--tools/perf/builtin-kmem.c39
-rw-r--r--tools/perf/builtin-report.c37
-rw-r--r--tools/perf/builtin-sched.c25
-rw-r--r--tools/perf/builtin-timechart.c25
-rw-r--r--tools/perf/builtin-trace.c20
-rw-r--r--tools/perf/perf.c2
-rw-r--r--tools/perf/util/data_map.c252
-rw-r--r--tools/perf/util/debug.c1
-rw-r--r--tools/perf/util/debugfs.c17
-rw-r--r--tools/perf/util/debugfs.h2
-rw-r--r--tools/perf/util/event.h65
-rw-r--r--tools/perf/util/header.c133
-rw-r--r--tools/perf/util/header.h2
-rw-r--r--tools/perf/util/map.h73
-rw-r--r--tools/perf/util/parse-events.c37
-rw-r--r--tools/perf/util/probe-event.c2
-rw-r--r--tools/perf/util/probe-finder.h2
-rw-r--r--tools/perf/util/session.c253
-rw-r--r--tools/perf/util/session.h24
-rw-r--r--tools/perf/util/symbol.c17
-rw-r--r--tools/perf/util/symbol.h5
-rw-r--r--tools/perf/util/trace-event-info.c62
-rw-r--r--tools/perf/util/util.c69
-rw-r--r--tools/perf/util/util.h3
42 files changed, 737 insertions, 639 deletions
diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
index 139d4c1a33a..93da9c3f334 100644
--- a/arch/x86/include/asm/nmi.h
+++ b/arch/x86/include/asm/nmi.h
@@ -19,7 +19,6 @@ extern void die_nmi(char *str, struct pt_regs *regs, int do_panic);
extern int check_nmi_watchdog(void);
extern int nmi_watchdog_enabled;
extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
-extern int avail_to_resrv_perfctr_nmi(unsigned int);
extern int reserve_perfctr_nmi(unsigned int);
extern void release_perfctr_nmi(unsigned int);
extern int reserve_evntsel_nmi(unsigned int);
diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c
index 898df9719af..74f4e85a572 100644
--- a/arch/x86/kernel/cpu/perfctr-watchdog.c
+++ b/arch/x86/kernel/cpu/perfctr-watchdog.c
@@ -115,17 +115,6 @@ int avail_to_resrv_perfctr_nmi_bit(unsigned int counter)
return !test_bit(counter, perfctr_nmi_owner);
}
-
-/* checks the an msr for availability */
-int avail_to_resrv_perfctr_nmi(unsigned int msr)
-{
- unsigned int counter;
-
- counter = nmi_perfctr_msr_to_bit(msr);
- BUG_ON(counter > NMI_MAX_COUNTER_BITS);
-
- return !test_bit(counter, perfctr_nmi_owner);
-}
EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit);
int reserve_perfctr_nmi(unsigned int msr)
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 2233c98d80d..0a09e758c7d 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -188,7 +188,7 @@ do { \
__trace_printk(ip, fmt, ##args); \
} while (0)
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
struct perf_event;
extern int ftrace_profile_enable(int event_id);
extern void ftrace_profile_disable(int event_id);
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index c66b34f75ee..9a1d276db75 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -658,7 +658,7 @@ struct perf_event {
perf_overflow_handler_t overflow_handler;
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_EVENT_TRACING
struct event_filter *filter;
#endif
@@ -746,10 +746,10 @@ extern int perf_max_events;
extern const struct pmu *hw_perf_event_init(struct perf_event *event);
-extern void perf_event_task_sched_in(struct task_struct *task, int cpu);
+extern void perf_event_task_sched_in(struct task_struct *task);
extern void perf_event_task_sched_out(struct task_struct *task,
- struct task_struct *next, int cpu);
-extern void perf_event_task_tick(struct task_struct *task, int cpu);
+ struct task_struct *next);
+extern void perf_event_task_tick(struct task_struct *task);
extern int perf_event_init_task(struct task_struct *child);
extern void perf_event_exit_task(struct task_struct *child);
extern void perf_event_free_task(struct task_struct *task);
@@ -870,12 +870,12 @@ extern void perf_event_enable(struct perf_event *event);
extern void perf_event_disable(struct perf_event *event);
#else
static inline void
-perf_event_task_sched_in(struct task_struct *task, int cpu) { }
+perf_event_task_sched_in(struct task_struct *task) { }
static inline void
perf_event_task_sched_out(struct task_struct *task,
- struct task_struct *next, int cpu) { }
+ struct task_struct *next) { }
static inline void
-perf_event_task_tick(struct task_struct *task, int cpu) { }
+perf_event_task_tick(struct task_struct *task) { }
static inline int perf_event_init_task(struct task_struct *child) { return 0; }
static inline void perf_event_exit_task(struct task_struct *child) { }
static inline void perf_event_free_task(struct task_struct *task) { }
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 207466a49f3..feee739afe2 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -99,7 +99,7 @@ struct perf_event_attr;
#define __SC_TEST5(t5, a5, ...) __SC_TEST(t5); __SC_TEST4(__VA_ARGS__)
#define __SC_TEST6(t6, a6, ...) __SC_TEST(t6); __SC_TEST5(__VA_ARGS__)
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
#define TRACE_SYS_ENTER_PROFILE_INIT(sname) \
.profile_enable = prof_sysenter_enable, \
@@ -113,7 +113,7 @@ struct perf_event_attr;
#define TRACE_SYS_ENTER_PROFILE_INIT(sname)
#define TRACE_SYS_EXIT_PROFILE(sname)
#define TRACE_SYS_EXIT_PROFILE_INIT(sname)
-#endif
+#endif /* CONFIG_PERF_EVENTS */
#ifdef CONFIG_FTRACE_SYSCALLS
#define __SC_STR_ADECL1(t, a) #a
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index c6fe03e902c..4a46a60c207 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -499,7 +499,7 @@ static inline int ftrace_get_offsets_##call( \
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
/*
* Generate the functions needed for tracepoint perf_event support.
@@ -542,7 +542,7 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-#endif
+#endif /* CONFIG_PERF_EVENTS */
/*
* Stage 4 of the trace events.
@@ -627,7 +627,7 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\
*
*/
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
#define _TRACE_PROFILE_INIT(call) \
.profile_enable = ftrace_profile_enable_##call, \
@@ -635,7 +635,7 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\
#else
#define _TRACE_PROFILE_INIT(call)
-#endif
+#endif /* CONFIG_PERF_EVENTS */
#undef __entry
#define __entry entry
@@ -835,7 +835,7 @@ __attribute__((section("_ftrace_events"))) event_##call = { \
* }
*/
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
#undef __perf_addr
#define __perf_addr(a) __addr = (a)
@@ -927,7 +927,7 @@ static void ftrace_profile_##call(proto) \
DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-#endif /* CONFIG_EVENT_PROFILE */
+#endif /* CONFIG_PERF_EVENTS */
#undef _TRACE_PROFILE_INIT
diff --git a/include/trace/syscall.h b/include/trace/syscall.h
index 961fda3556b..3d463dcef29 100644
--- a/include/trace/syscall.h
+++ b/include/trace/syscall.h
@@ -49,12 +49,12 @@ ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s);
enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags);
enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags);
#endif
-#ifdef CONFIG_EVENT_PROFILE
+
+#ifdef CONFIG_PERF_EVENTS
int prof_sysenter_enable(struct ftrace_event_call *call);
void prof_sysenter_disable(struct ftrace_event_call *call);
int prof_sysexit_enable(struct ftrace_event_call *call);
void prof_sysexit_disable(struct ftrace_event_call *call);
-
#endif
#endif /* _TRACE_SYSCALL_H */
diff --git a/init/Kconfig b/init/Kconfig
index d95ca7cd5d4..ada48441aff 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -976,19 +976,6 @@ config PERF_EVENTS
Say Y if unsure.
-config EVENT_PROFILE
- bool "Tracepoint profiling sources"
- depends on PERF_EVENTS && EVENT_TRACING
- default y
- help
- Allow the use of tracepoints as software performance events.
-
- When this is enabled, you can create perf events based on
- tracepoints using PERF_TYPE_TRACEPOINT and the tracepoint ID
- found in debugfs://tracing/events/*/*/id. (The -e/--events
- option to the perf tool can parse and interpret symbolic
- tracepoints, in the subsystem:tracepoint_name format.)
-
config PERF_COUNTERS
bool "Kernel performance counters (old config option)"
depends on HAVE_PERF_EVENTS
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 603c0d8b5df..27f69a04541 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -1170,9 +1170,9 @@ static void perf_event_sync_stat(struct perf_event_context *ctx,
* not restart the event.
*/
void perf_event_task_sched_out(struct task_struct *task,
- struct task_struct *next, int cpu)
+ struct task_struct *next)
{
- struct perf_cpu_context *cpuctx = &per_cpu(perf_cpu_context, cpu);
+ struct perf_cpu_context *cpuctx = &__get_cpu_var(perf_cpu_context);
struct perf_event_context *ctx = task->perf_event_ctxp;
struct perf_event_context *next_ctx;
struct perf_event_context *parent;
@@ -1252,8 +1252,9 @@ static void perf_event_cpu_sched_out(struct perf_cpu_context *cpuctx)
static void
__perf_event_sched_in(struct perf_event_context *ctx,
- struct perf_cpu_context *cpuctx, int cpu)
+ struct perf_cpu_context *cpuctx)
{
+ int cpu = smp_processor_id();
struct perf_event *event;
int can_add_hw = 1;
@@ -1326,24 +1327,24 @@ __perf_event_sched_in(struct perf_event_context *ctx,
* accessing the event control register. If a NMI hits, then it will
* keep the event running.
*/
-void perf_event_task_sched_in(struct task_struct *task, int cpu)
+void perf_event_task_sched_in(struct task_struct *task)
{
- struct perf_cpu_context *cpuctx = &per_cpu(perf_cpu_context, cpu);
+ struct perf_cpu_context *cpuctx = &__get_cpu_var(perf_cpu_context);
struct perf_event_context *ctx = task->perf_event_ctxp;
if (likely(!ctx))
return;
if (cpuctx->task_ctx == ctx)
return;
- __perf_event_sched_in(ctx, cpuctx, cpu);
+ __perf_event_sched_in(ctx, cpuctx);
cpuctx->task_ctx = ctx;
}
-static void perf_event_cpu_sched_in(struct perf_cpu_context *cpuctx, int cpu)
+static void perf_event_cpu_sched_in(struct perf_cpu_context *cpuctx)
{
struct perf_event_context *ctx = &cpuctx->ctx;
- __perf_event_sched_in(ctx, cpuctx, cpu);
+ __perf_event_sched_in(ctx, cpuctx);
}
#define MAX_INTERRUPTS (~0ULL)
@@ -1461,7 +1462,7 @@ static void rotate_ctx(struct perf_event_context *ctx)
raw_spin_unlock(&ctx->lock);
}
-void perf_event_task_tick(struct task_struct *curr, int cpu)
+void perf_event_task_tick(struct task_struct *curr)
{
struct perf_cpu_context *cpuctx;
struct perf_event_context *ctx;
@@ -1469,7 +1470,7 @@ void perf_event_task_tick(struct task_struct *curr, int cpu)
if (!atomic_read(&nr_events))
return;
- cpuctx = &per_cpu(perf_cpu_context, cpu);
+ cpuctx = &__get_cpu_var(perf_cpu_context);
ctx = curr->perf_event_ctxp;
perf_ctx_adjust_freq(&cpuctx->ctx);
@@ -1484,9 +1485,9 @@ void perf_event_task_tick(struct task_struct *curr, int cpu)
if (ctx)
rotate_ctx(ctx);
- perf_event_cpu_sched_in(cpuctx, cpu);
+ perf_event_cpu_sched_in(cpuctx);
if (ctx)
- perf_event_task_sched_in(curr, cpu);
+ perf_event_task_sched_in(curr);
}
/*
@@ -1527,7 +1528,7 @@ static void perf_event_enable_on_exec(struct task_struct *task)
raw_spin_unlock(&ctx->lock);
- perf_event_task_sched_in(task, smp_processor_id());
+ perf_event_task_sched_in(task);
out:
local_irq_restore(flags);
}
@@ -4176,7 +4177,7 @@ static const struct pmu perf_ops_task_clock = {
.read = task_clock_perf_event_read,
};
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_EVENT_TRACING
void perf_tp_event(int event_id, u64 addr, u64 count, void *record,
int entry_size)
@@ -4281,7 +4282,7 @@ static void perf_event_free_filter(struct perf_event *event)
{
}
-#endif /* CONFIG_EVENT_PROFILE */
+#endif /* CONFIG_EVENT_TRACING */
#ifdef CONFIG_HAVE_HW_BREAKPOINT
static void bp_perf_event_destroy(struct perf_event *event)
diff --git a/kernel/sched.c b/kernel/sched.c
index c535cc4f642..e507af086b4 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2783,7 +2783,7 @@ static void finish_task_switch(struct rq *rq, struct task_struct *prev)
*/
prev_state = prev->state;
finish_arch_switch(prev);
- perf_event_task_sched_in(current, cpu_of(rq));
+ perf_event_task_sched_in(current);
finish_lock_switch(rq, prev);
fire_sched_in_preempt_notifiers(current);
@@ -5298,7 +5298,7 @@ void scheduler_tick(void)
curr->sched_class->task_tick(rq, curr, 0);
raw_spin_unlock(&rq->lock);
- perf_event_task_tick(curr, cpu);
+ perf_event_task_tick(curr);
#ifdef CONFIG_SMP
rq->idle_at_tick = idle_cpu(cpu);
@@ -5512,7 +5512,7 @@ need_resched_nonpreemptible:
if (likely(prev != next)) {
sched_info_switch(prev, next);
- perf_event_task_sched_out(prev, next, cpu);
+ perf_event_task_sched_out(prev, next);
rq->nr_switches++;
rq->curr = next;
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index cd9ecd89ec7..d00c6fe23f5 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -51,7 +51,9 @@ endif
obj-$(CONFIG_EVENT_TRACING) += trace_events.o
obj-$(CONFIG_EVENT_TRACING) += trace_export.o
obj-$(CONFIG_FTRACE_SYSCALLS) += trace_syscalls.o
-obj-$(CONFIG_EVENT_PROFILE) += trace_event_profile.o
+ifeq ($(CONFIG_PERF_EVENTS),y)
+obj-$(CONFIG_EVENT_TRACING) += trace_event_profile.o
+endif
obj-$(CONFIG_EVENT_TRACING) += trace_events_filter.o
obj-$(CONFIG_KPROBE_EVENT) += trace_kprobe.o
obj-$(CONFIG_KSYM_TRACER) += trace_ksym.o
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 50504cb228d..74563d7e102 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -1360,7 +1360,7 @@ out_unlock:
return err;
}
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
void ftrace_profile_free_filter(struct perf_event *event)
{
@@ -1428,5 +1428,5 @@ out_unlock:
return err;
}
-#endif /* CONFIG_EVENT_PROFILE */
+#endif /* CONFIG_PERF_EVENTS */
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 6ea90c0e2c9..47f54ab57b6 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -1250,7 +1250,7 @@ static int kretprobe_event_show_format(struct ftrace_event_call *call,
", REC->" FIELD_STRING_RETIP);
}
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
/* Kprobe profile handler */
static __kprobes int kprobe_profile_func(struct kprobe *kp,
@@ -1408,7 +1408,7 @@ static void probe_profile_disable(struct ftrace_event_call *call)
disable_kprobe(&tp->rp.kp);
}
}
-#endif /* CONFIG_EVENT_PROFILE */
+#endif /* CONFIG_PERF_EVENTS */
static __kprobes
@@ -1418,10 +1418,10 @@ int kprobe_dispatcher(struct kprobe *kp, struct pt_regs *regs)
if (tp->flags & TP_FLAG_TRACE)
kprobe_trace_func(kp, regs);
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
if (tp->flags & TP_FLAG_PROFILE)
kprobe_profile_func(kp, regs);
-#endif /* CONFIG_EVENT_PROFILE */
+#endif
return 0; /* We don't tweek kernel, so just return 0 */
}
@@ -1432,10 +1432,10 @@ int kretprobe_dispatcher(struct kretprobe_instance *ri, struct pt_regs *regs)
if (tp->flags & TP_FLAG_TRACE)
kretprobe_trace_func(ri, regs);
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
if (tp->flags & TP_FLAG_PROFILE)
kretprobe_profile_func(ri, regs);
-#endif /* CONFIG_EVENT_PROFILE */
+#endif
return 0; /* We don't tweek kernel, so just return 0 */
}
@@ -1464,7 +1464,7 @@ static int register_probe_event(struct trace_probe *tp)
call->regfunc = probe_event_enable;
call->unregfunc = probe_event_disable;
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
call->profile_enable = probe_profile_enable;
call->profile_disable = probe_profile_disable;
#endif
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 75289f372dd..f694f66d75b 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -421,7 +421,7 @@ int __init init_ftrace_syscalls(void)
}
core_initcall(init_ftrace_syscalls);
-#ifdef CONFIG_EVENT_PROFILE
+#ifdef CONFIG_PERF_EVENTS
static DECLARE_BITMAP(enabled_prof_enter_syscalls, NR_syscalls);
static DECLARE_BITMAP(enabled_prof_exit_syscalls, NR_syscalls);
@@ -626,6 +626,5 @@ void prof_sysexit_disable(struct ftrace_event_call *call)
mutex_unlock(&syscall_trace_lock);
}
-#endif
-
+#endif /* CONFIG_PERF_EVENTS */
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 2e7fa3a0680..2c03a941131 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -369,6 +369,7 @@ LIB_H += util/event.h
LIB_H += util/exec_cmd.h
LIB_H += util/types.h
LIB_H += util/levenshtein.h
+LIB_H += util/map.h
LIB_H += util/parse-options.h
LIB_H += util/parse-events.h
LIB_H += util/quote.h
@@ -435,8 +436,8 @@ LIB_OBJS += util/trace-event-perl.o
LIB_OBJS += util/svghelper.o
LIB_OBJS += util/sort.o
LIB_OBJS += util/hist.o
-LIB_OBJS += util/data_map.o
LIB_OBJS += util/probe-event.o
+LIB_OBJS += util/util.o
BUILTIN_OBJS += builtin-annotate.o
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 593ff25006d..117bbae844b 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -451,10 +451,10 @@ static void perf_session__find_annotations(struct perf_session *self)
}
static struct perf_event_ops event_ops = {
- .process_sample_event = process_sample_event,
- .process_mmap_event = event__process_mmap,
- .process_comm_event = event__process_comm,
- .process_fork_event = event__process_task,
+ .sample = process_sample_event,
+ .mmap = event__process_mmap,
+ .comm = event__process_comm,
+ .fork = event__process_task,
};
static int __cmd_annotate(void)
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index bd71b8ceafb..924bfb77a6a 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -51,12 +51,12 @@ static int diff__process_sample_event(event_t *event, struct perf_session *sessi
return -1;
}
- if (al.filtered)
+ if (al.filtered || al.sym == NULL)
return 0;
event__parse_sample(event, session->sample_type, &data);
- if (al.sym && perf_session__add_hist_entry(session, &al, data.period)) {
+ if (perf_session__add_hist_entry(session, &al, data.period)) {
pr_warning("problem incrementing symbol count, skipping event\n");
return -1;
}
@@ -66,12 +66,12 @@ static int diff__process_sample_event(event_t *event, struct perf_session *sessi
}
static struct perf_event_ops event_ops = {
- .process_sample_event = diff__process_sample_event,
- .process_mmap_event = event__process_mmap,
- .process_comm_event = event__process_comm,
- .process_exit_event = event__process_task,
- .process_fork_event = event__process_task,
- .process_lost_event = event__process_lost,
+ .sample = diff__process_sample_event,
+ .mmap = event__process_mmap,
+ .comm = event__process_comm,
+ .exit = event__process_task,
+ .fork = event__process_task,
+ .lost = event__process_lost,
};
static void perf_session__insert_hist_entry_by_name(struct rb_root *root,
@@ -82,29 +82,19 @@ static void perf_session__insert_hist_entry_by_name(struct rb_root *root,
struct hist_entry *iter;
while (*p != NULL) {
- int cmp;
parent = *p;
iter = rb_entry(parent, struct hist_entry, rb_node);
-
- cmp = strcmp(he->map->dso->name, iter->map->dso->name);
- if (cmp > 0)
+ if (hist_entry__cmp(he, iter) < 0)
p = &(*p)->rb_left;
- else if (cmp < 0)
+ else
p = &(*p)->rb_right;
- else {
- cmp = strcmp(he->sym->name, iter->sym->name);
- if (cmp > 0)
- p = &(*p)->rb_left;
- else
- p = &(*p)->rb_right;
- }
}
rb_link_node(&he->rb_node, parent, p);
rb_insert_color(&he->rb_node, root);
}
-static void perf_session__resort_by_name(struct perf_session *self)
+static void perf_session__resort_hist_entries(struct perf_session *self)
{
unsigned long position = 1;
struct rb_root tmp = RB_ROOT;
@@ -122,29 +112,28 @@ static void perf_session__resort_by_name(struct perf_session *self)
self->hists = tmp;
}
+static void perf_session__set_hist_entries_positions(struct perf_session *self)
+{
+ perf_session__output_resort(self, self->events_stats.total);
+ perf_session__resort_hist_entries(self);
+}
+
static struct hist_entry *
-perf_session__find_hist_entry_by_name(struct perf_session *self,
- struct hist_entry *he)
+perf_session__find_hist_entry(struct perf_session *self,
+ struct hist_entry *he)
{
struct rb_node *n = self->hists.rb_node;
while (n) {
struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node);
- int cmp = strcmp(he->map->dso->name, iter->map->dso->name);
+ int64_t cmp = hist_entry__cmp(he, iter);
- if (cmp > 0)
+ if (cmp < 0)
n = n->rb_left;
- else if (cmp < 0)
+ else if (cmp > 0)
n = n->rb_right;
- else {
- cmp = strcmp(he->sym->name, iter->sym->name);
- if (cmp > 0)
- n = n->rb_left;
- else if (cmp < 0)
- n = n->rb_right;
- else
- return iter;
- }
+ else
+ return iter;
}
return NULL;
@@ -155,11 +144,9 @@ static void perf_session__match_hists(struct perf_session *old_session,
{
struct rb_node *nd;
- perf_session__resort_by_name(old_session);
-
for (nd = rb_first(&new_session->hists); nd; nd = rb_next(nd)) {
struct hist_entry *pos = rb_entry(nd, struct hist_entry, rb_node);
- pos->pair = perf_session__find_hist_entry_by_name(old_session, pos);
+ pos->pair = perf_session__find_hist_entry(old_session, pos);
}
}
@@ -177,9 +164,12 @@ static int __cmd_diff(void)
ret = perf_session__process_events(session[i], &event_ops);
if (ret)
goto out_delete;
- perf_session__output_resort(session[i], session[i]->events_stats.total);
}
+ perf_session__output_resort(session[1], session[1]->events_stats.total);
+ if (show_displacement)
+ perf_session__set_hist_entries_positions(session[0]);
+
perf_session__match_hists(session[0], session[1]);
perf_session__fprintf_hists(session[1], session[0],
show_displacement, stdout);
@@ -204,7 +194,7 @@ static const struct option options[] = {
OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
"load module symbols - WARNING: use only with -k and LIVE kernel"),
- OPT_BOOLEAN('P', "full-paths", &event_ops.full_paths,
+ OPT_BOOLEAN('P', "full-paths", &symbol_conf.full_paths,
"Don't shorten the pathnames taking into account the cwd"),
OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
"only consider symbols in these dsos"),
diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index 9f810b17c25..e427d6965e0 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -286,8 +286,7 @@ void list_common_cmds_help(void)
puts(" The most commonly used perf commands are:");
for (i = 0; i < ARRAY_SIZE(common_cmds); i++) {
- printf(" %s ", common_cmds[i].name);
- mput_char(' ', longest - strlen(common_cmds[i].name));
+ printf(" %-*s ", longest, common_cmds[i].name);
puts(common_cmds[i].help);
}
}
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 7ceb7416c31..88c570c18e3 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -92,23 +92,18 @@ static void setup_cpunode_map(void)
if (!dir1)
return;
- while (true) {
- dent1 = readdir(dir1);
- if (!dent1)
- break;
-
- if (sscanf(dent1->d_name, "node%u", &mem) < 1)
+ while ((dent1 = readdir(dir1)) != NULL) {
+ if (dent1->d_type != DT_DIR ||
+ sscanf(dent1->d_name, "node%u", &mem) < 1)
continue;
snprintf(buf, PATH_MAX, "%s/%s", PATH_SYS_NODE, dent1->d_name);
dir2 = opendir(buf);
if (!dir2)
continue;
- while (true) {
- dent2 = readdir(dir2);
- if (!dent2)
- break;
- if (sscanf(dent2->d_name, "cpu%u", &cpu) < 1)
+ while ((dent2 = readdir(dir2)) != NULL) {
+ if (dent2->d_type != DT_LNK ||
+ sscanf(dent2->d_name, "cpu%u", &cpu) < 1)
continue;
cpunode_map[cpu] = mem;
}
@@ -342,22 +337,9 @@ static int process_sample_event(event_t *event, struct perf_session *session)
return 0;
}
-static int sample_type_check(struct perf_session *session)
-{
- if (!(session->sample_type & PERF_SAMPLE_RAW)) {
- fprintf(stderr,
- "No trace sample to read. Did you call perf record "
- "without -R?");
- return -1;
- }
-
- return 0;
-}
-
static struct perf_event_ops event_ops = {
- .process_sample_event = process_sample_event,
- .process_comm_event = event__process_comm,
- .sample_type_check = sample_type_check,
+ .sample = process_sample_event,
+ .comm = event__process_comm,
};
static double fragmentation(unsigned long n_req, unsigned long n_alloc)
@@ -504,11 +486,14 @@ static void sort_result(void)
static int __cmd_kmem(void)
{
- int err;
+ int err = -EINVAL;
struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0);
if (session == NULL)
return -ENOMEM;
+ if (!perf_session__has_traces(session, "kmem record"))
+ goto out_delete;
+
setup_pager();
err = perf_session__process_events(session, &event_ops);
if (err != 0)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index db10c0e8eca..4292d7afcd6 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -34,6 +34,7 @@
static char const *input_name = "perf.data";
static int force;
+static bool hide_unresolved;
static int show_threads;
static struct perf_read_values show_threads_values;
@@ -121,7 +122,7 @@ static int process_sample_event(event_t *event, struct perf_session *session)
return -1;
}
- if (al.filtered)
+ if (al.filtered || (hide_unresolved && al.sym == NULL))
return 0;
if (perf_session__add_hist_entry(session, &al, data.callchain, data.period)) {
@@ -156,14 +157,14 @@ static int process_read_event(event_t *event, struct perf_session *session __use
return 0;
}
-static int sample_type_check(struct perf_session *session)
+static int perf_session__setup_sample_type(struct perf_session *self)
{
- if (!(session->sample_type & PERF_SAMPLE_CALLCHAIN)) {
+ if (!(self->sample_type & PERF_SAMPLE_CALLCHAIN)) {
if (sort__has_parent) {
fprintf(stderr, "selected --sort parent, but no"
" callchain data. Did you call"
" perf record without -g?\n");
- return -1;
+ return -EINVAL;
}
if (symbol_conf.use_callchain) {
fprintf(stderr, "selected -g but no callchain data."
@@ -176,7 +177,7 @@ static int sample_type_check(struct perf_session *session)
if (register_callchain_param(&callchain_param) < 0) {
fprintf(stderr, "Can't register callchain"
" params\n");
- return -1;
+ return -EINVAL;
}
}
@@ -184,20 +185,18 @@ static int sample_type_check(struct perf_session *session)
}
static struct perf_event_ops event_ops = {
- .process_sample_event = process_sample_event,
- .process_mmap_event = event__process_mmap,
- .process_comm_event = event__process_comm,
- .process_exit_event = event__process_task,
- .process_fork_event = event__process_task,
- .process_lost_event = event__process_lost,
- .process_read_event = process_read_event,
- .sample_type_check = sample_type_check,
+ .sample = process_sample_event,
+ .mmap = event__process_mmap,
+ .comm = event__process_comm,
+ .exit = event__process_task,
+ .fork = event__process_task,
+ .lost = event__process_lost,
+ .read = process_read_event,
};
-
static int __cmd_report(void)
{
- int ret;
+ int ret = -EINVAL;
struct perf_session *session;
session = perf_session__new(input_name, O_RDONLY, force);
@@ -207,6 +206,10 @@ static int __cmd_report(void)
if (show_threads)
perf_read_values_init(&show_threads_values);
+ ret = perf_session__setup_sample_type(session);
+ if (ret)
+ goto out_delete;
+
ret = perf_session__process_events(session, &event_ops);
if (ret)
goto out_delete;
@@ -319,7 +322,7 @@ static const struct option options[] = {
"pretty printing style key: normal raw"),
OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
"sort by key(s): pid, comm, dso, symbol, parent"),
- OPT_BOOLEAN('P', "full-paths", &event_ops.full_paths,
+ OPT_BOOLEAN('P', "full-paths", &symbol_conf.full_paths,
"Don't shorten the pathnames taking into account the cwd"),
OPT_STRING('p', "parent", &parent_pattern, "regex",
"regex filter to identify parent, see: '--sort parent'"),
@@ -340,6 +343,8 @@ static const struct option options[] = {
OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator",
"separator for columns, no spaces will be added between "
"columns '.' is reserved."),
+ OPT_BOOLEAN('U', "hide-unresolved", &hide_unresolved,
+ "Only display entries resolved to a symbol"),
OPT_END()
};
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 80209df6cfe..702322f8fec 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1653,33 +1653,22 @@ static int process_lost_event(event_t *event __used,
return 0;
}
-static int sample_type_check(struct perf_session *session __used)
-{
- if (!(session->sample_type & PERF_SAMPLE_RAW)) {
- fprintf(stderr,
- "No trace sample to read. Did you call perf record "
- "without -R?");
- return -1;
- }
-
- return 0;
-}
-
static struct perf_event_ops event_ops = {
- .process_sample_event = process_sample_event,
- .process_comm_event = event__process_comm,
- .process_lost_event = process_lost_event,
- .sample_type_check = sample_type_check,
+ .sample = process_sample_event,
+ .comm = event__process_comm,
+ .lost = process_lost_event,
};
static int read_events(void)
{
- int err;
+ int err = -EINVAL;
struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0);
if (session == NULL)
return -ENOMEM;
- err = perf_session__process_events(session, &event_ops);
+ if (perf_session__has_traces(session, "record -R"))
+ err = perf_session__process_events(session, &event_ops);
+
perf_session__delete(session);
return err;
}
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index a589a43112d..5b68d81d93a 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -1029,33 +1029,24 @@ static void process_samples(struct perf_session *session)
}
}
-static int sample_type_check(struct perf_session *session)
-{
- if (!(session->sample_type & PERF_SAMPLE_RAW)) {
- fprintf(stderr, "No trace samples found in the file.\n"
- "Have you used 'perf timechart record' to record it?\n");
- return -1;
- }
-
- return 0;
-}
-
static struct perf_event_ops event_ops = {
- .process_comm_event = process_comm_event,
- .process_fork_event = process_fork_event,
- .process_exit_event = process_exit_event,
- .process_sample_event = queue_sample_event,
- .sample_type_check = sample_type_check,
+ .comm = process_comm_event,
+ .fork = process_fork_event,
+ .exit = process_exit_event,
+ .sample = queue_sample_event,
};
static int __cmd_timechart(void)
{
struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0);
- int ret;
+ int ret = -EINVAL;
if (session == NULL)
return -ENOMEM;
+ if (!perf_session__has_traces(session, "timechart record"))
+ goto out_delete;
+
ret = perf_session__process_events(session, &event_ops);
if (ret)
goto out_delete;
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 574a215e800..1831434aa93 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -103,22 +103,9 @@ static int process_sample_event(event_t *event, struct perf_session *session)
return 0;
}
-static int sample_type_check(struct perf_session *session)
-{
- if (!(session->sample_type & PERF_SAMPLE_RAW)) {
- fprintf(stderr,
- "No trace sample to read. Did you call perf record "
- "without -R?");
- return -1;
- }
-
- return 0;
-}
-
static struct perf_event_ops event_ops = {
- .process_sample_event = process_sample_event,
- .process_comm_event = event__process_comm,
- .sample_type_check = sample_type_check,
+ .sample = process_sample_event,
+ .comm = event__process_comm,
};
static int __cmd_trace(struct perf_session *session)
@@ -592,6 +579,9 @@ int cmd_trace(int argc, const char **argv, const char *prefix __used)
if (session == NULL)
return -ENOMEM;
+ if (!perf_session__has_traces(session, "record -R"))
+ return -EINVAL;
+
if (generate_script_lang) {
struct stat perf_stat;
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 873e55fab37..fc89005c3e5 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -388,7 +388,7 @@ static int run_argv(int *argcp, const char ***argv)
/* mini /proc/mounts parser: searching for "^blah /mount/point debugfs" */
static void get_debugfs_mntpt(void)
{
- const char *path = debugfs_find_mountpoint();
+ const char *path = debugfs_mount(NULL);
if (path)
strncpy(debugfs_mntpt, path, sizeof(debugfs_mntpt));
diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c
deleted file mode 100644
index b557b836de3..00000000000
--- a/tools/perf/util/data_map.c
+++ /dev/null
@@ -1,252 +0,0 @@
-#include "symbol.h"
-#include "util.h"
-#include "debug.h"
-#include "thread.h"
-#include "session.h"
-
-static int process_event_stub(event_t *event __used,
- struct perf_session *session __used)
-{
- dump_printf(": unhandled!\n");
- return 0;
-}
-
-static void perf_event_ops__fill_defaults(struct perf_event_ops *handler)
-{
- if (!handler->process_sample_event)
- handler->process_sample_event = process_event_stub;
- if (!handler->process_mmap_event)
- handler->process_mmap_event = process_event_stub;
- if (!handler->process_comm_event)
- handler->process_comm_event = process_event_stub;
- if (!handler->process_fork_event)
- handler->process_fork_event = process_event_stub;
- if (!handler->process_exit_event)
- handler->process_exit_event = process_event_stub;
- if (!handler->process_lost_event)
- handler->process_lost_event = process_event_stub;
- if (!handler->process_read_event)
- handler->process_read_event = process_event_stub;
- if (!handler->process_throttle_event)
- handler->process_throttle_event = process_event_stub;
- if (!handler->process_unthrottle_event)
- handler->process_unthrottle_event = process_event_stub;
-}
-
-static const char *event__name[] = {
- [0] = "TOTAL",
- [PERF_RECORD_MMAP] = "MMAP",
- [PERF_RECORD_LOST] = "LOST",
- [PERF_RECORD_COMM] = "COMM",
- [PERF_RECORD_EXIT] = "EXIT",
- [PERF_RECORD_THROTTLE] = "THROTTLE",
- [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
- [PERF_RECORD_FORK] = "FORK",
- [PERF_RECORD_READ] = "READ",
- [PERF_RECORD_SAMPLE] = "SAMPLE",
-};
-
-unsigned long event__total[PERF_RECORD_MAX];
-
-void event__print_totals(void)
-{
- int i;
- for (i = 0; i < PERF_RECORD_MAX; ++i)
- pr_info("%10s events: %10ld\n",
- event__name[i], event__total[i]);
-}
-
-static int process_event(event_t *event, struct perf_session *session,
- struct perf_event_ops *ops,
- unsigned long offset, unsigned long head)
-{
- trace_event(event);
-
- if (event->header.type < PERF_RECORD_MAX) {
- dump_printf("%p [%p]: PERF_RECORD_%s",
- (void *)(offset + head),
- (void *)(long)(event->header.size),
- event__name[event->header.type]);
- ++event__total[0];
- ++event__total[event->header.type];
- }
-
- switch (event->header.type) {
- case PERF_RECORD_SAMPLE:
- return ops->process_sample_event(event, session);
- case PERF_RECORD_MMAP:
- return ops->process_mmap_event(event, session);
- case PERF_RECORD_COMM:
- return ops->process_comm_event(event, session);
- case PERF_RECORD_FORK:
- return ops->process_fork_event(event, session);
- case PERF_RECORD_EXIT:
- return ops->process_exit_event(event, session);
- case PERF_RECORD_LOST:
- return ops->process_lost_event(event, session);
- case PERF_RECORD_READ:
- return ops->process_read_event(event, session);
- case PERF_RECORD_THROTTLE:
- return ops->process_throttle_event(event, session);
- case PERF_RECORD_UNTHROTTLE:
- return ops->process_unthrottle_event(event, session);
- default:
- ops->total_unknown++;
- return -1;
- }
-}
-
-int perf_header__read_build_ids(int input, u64 offset, u64 size)
-{
- struct build_id_event bev;
- char filename[PATH_MAX];
- u64 limit = offset + size;
- int err = -1;
-
- while (offset < limit) {
- struct dso *dso;
- ssize_t len;
-
- if (read(input, &bev, sizeof(bev)) != sizeof(bev))
- goto out;
-
- len = bev.header.size - sizeof(bev);
- if (read(input, filename, len) != len)
- goto out;
-
- dso = dsos__findnew(filename);
- if (dso != NULL)
- dso__set_build_id(dso, &bev.build_id);
-
- offset += bev.header.size;
- }
- err = 0;
-out:
- return err;
-}
-
-static struct thread *perf_session__register_idle_thread(struct perf_session *self)
-{
- struct thread *thread = perf_session__findnew(self, 0);
-
- if (!thread || thread__set_comm(thread, "swapper")) {
- pr_err("problem inserting idle task.\n");
- thread = NULL;
- }
-
- return thread;
-}
-
-int perf_session__process_events(struct perf_session *self,
- struct perf_event_ops *ops)
-{
- int err;
- unsigned long head, shift;
- unsigned long offset = 0;
- size_t page_size;
- event_t *event;
- uint32_t size;
- char *buf;
-
- if (perf_session__register_idle_thread(self) == NULL)
- return -ENOMEM;
-
- perf_event_ops__fill_defaults(ops);
-
- page_size = getpagesize();
-
- head = self->header.data_offset;
- self->sample_type = perf_header__sample_type(&self->header);
-
- err = -EINVAL;
- if (ops->sample_type_check && ops->sample_type_check(self) < 0)
- goto out_err;
-
- if (!ops->full_paths) {
- char bf[PATH_MAX];
-
- if (getcwd(bf, sizeof(bf)) == NULL) {
- err = -errno;
-out_getcwd_err:
- pr_err("failed to get the current directory\n");
- goto out_err;
- }
- self->cwd = strdup(bf);
- if (self->cwd == NULL) {
- err = -ENOMEM;
- goto out_getcwd_err;
- }
- self->cwdlen = strlen(self->cwd);
- }
-
- shift = page_size * (head / page_size);
- offset += shift;
- head -= shift;
-
-remap:
- buf = mmap(NULL, page_size * self->mmap_window, PROT_READ,
- MAP_SHARED, self->fd, offset);
- if (buf == MAP_FAILED) {
- pr_err("failed to mmap file\n");
- err = -errno;
- goto out_err;
- }
-
-more:
- event = (event_t *)(buf + head);
-
- size = event->header.size;
- if (!size)
- size = 8;
-
- if (head + event->header.size >= page_size * self->mmap_window) {
- int munmap_ret;
-
- shift = page_size * (head / page_size);
-
- munmap_ret = munmap(buf, page_size * self->mmap_window);
- assert(munmap_ret == 0);
-
- offset += shift;
- head -= shift;
- goto remap;
- }
-
- size = event->header.size;
-
- dump_printf("\n%p [%p]: event: %d\n",
- (void *)(offset + head),
- (void *)(long)event->header.size,
- event->header.type);
-
- if (!size || process_event(event, self, ops, offset, head) < 0) {
-
- dump_printf("%p [%p]: skipping unknown header type: %d\n",
- (void *)(offset + head),
- (void *)(long)(event->header.size),
- event->header.type);
-
- /*
- * assume we lost track of the stream, check alignment, and
- * increment a single u64 in the hope to catch on again 'soon'.
- */
-
- if (unlikely(head & 7))
- head &= ~7ULL;
-
- size = 8;
- }
-
- head += size;
-
- if (offset + head >= self->header.data_offset + self->header.data_size)
- goto done;
-
- if (offset + head < self->size)
- goto more;
-
-done:
- err = 0;
-out_err:
- return err;
-}
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index 28d520d5a1f..0905600c385 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -9,6 +9,7 @@
#include "color.h"
#include "event.h"
#include "debug.h"
+#include "util.h"
int verbose = 0;
int dump_trace = 0;
diff --git a/tools/perf/util/debugfs.c b/tools/perf/util/debugfs.c
index 06b73ee02c4..a88fefc0cc0 100644
--- a/tools/perf/util/debugfs.c
+++ b/tools/perf/util/debugfs.c
@@ -106,16 +106,14 @@ int debugfs_valid_entry(const char *path)
return 0;
}
-/* mount the debugfs somewhere */
+/* mount the debugfs somewhere if it's not mounted */
-int debugfs_mount(const char *mountpoint)
+char *debugfs_mount(const char *mountpoint)
{
- char mountcmd[128];
-
/* see if it's already mounted */
if (debugfs_find_mountpoint()) {
debugfs_premounted = 1;
- return 0;
+ return debugfs_mountpoint;
}
/* if not mounted and no argument */
@@ -127,13 +125,14 @@ int debugfs_mount(const char *mountpoint)
mountpoint = "/sys/kernel/debug";
}
+ if (mount(NULL, mountpoint, "debugfs", 0, NULL) < 0)
+ return NULL;
+
/* save the mountpoint */
strncpy(debugfs_mountpoint, mountpoint, sizeof(debugfs_mountpoint));
+ debugfs_found = 1;
- /* mount it */
- snprintf(mountcmd, sizeof(mountcmd),
- "/bin/mount -t debugfs debugfs %s", mountpoint);
- return system(mountcmd);
+ return debugfs_mountpoint;
}
/* umount the debugfs */
diff --git a/tools/perf/util/debugfs.h b/tools/perf/util/debugfs.h
index 3cd14f9ae78..83a02879745 100644
--- a/tools/perf/util/debugfs.h
+++ b/tools/perf/util/debugfs.h
@@ -15,7 +15,7 @@
extern const char *debugfs_find_mountpoint(void);
extern int debugfs_valid_mountpoint(const char *debugfs);
extern int debugfs_valid_entry(const char *path);
-extern int debugfs_mount(const char *mountpoint);
+extern char *debugfs_mount(const char *mountpoint);
extern int debugfs_umount(void);
extern int debugfs_write(const char *entry, const char *value);
extern int debugfs_read(const char *entry, char *buffer, size_t size);
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 690a96d0467..80fb3653c80 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -1,10 +1,10 @@
#ifndef __PERF_RECORD_H
#define __PERF_RECORD_H
+#include <limits.h>
+
#include "../perf.h"
-#include "util.h"
-#include <linux/list.h>
-#include <linux/rbtree.h>
+#include "map.h"
/*
* PERF_SAMPLE_IP | PERF_SAMPLE_TID | *
@@ -101,67 +101,8 @@ struct events_stats {
void event__print_totals(void);
-enum map_type {
- MAP__FUNCTION = 0,
- MAP__VARIABLE,
-};
-
-#define MAP__NR_TYPES (MAP__VARIABLE + 1)
-
-struct map {
- union {
- struct rb_node rb_node;
- struct list_head node;
- };
- u64 start;
- u64 end;
- enum map_type type;
- u64 pgoff;
- u64 (*map_ip)(struct map *, u64);
- u64 (*unmap_ip)(struct map *, u64);
- struct dso *dso;
-};
-
-static inline u64 map__map_ip(struct map *map, u64 ip)
-{
- return ip - map->start + map->pgoff;
-}
-
-static inline u64 map__unmap_ip(struct map *map, u64 ip)
-{
- return ip + map->start - map->pgoff;
-}
-
-static inline u64 identity__map_ip(struct map *map __used, u64 ip)
-{
- return ip;
-}
-
-struct symbol;
-
-typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
-
-void map__init(struct map *self, enum map_type type,
- u64 start, u64 end, u64 pgoff, struct dso *dso);
-struct map *map__new(struct mmap_event *event, enum map_type,
- char *cwd, int cwdlen);
-void map__delete(struct map *self);
-struct map *map__clone(struct map *self);
-int map__overlap(struct map *l, struct map *r);
-size_t map__fprintf(struct map *self, FILE *fp);
-
struct perf_session;
-int map__load(struct map *self, struct perf_session *session,
- symbol_filter_t filter);
-struct symbol *map__find_symbol(struct map *self, struct perf_session *session,
- u64 addr, symbol_filter_t filter);
-struct symbol *map__find_symbol_by_name(struct map *self, const char *name,
- struct perf_session *session,
- symbol_filter_t filter);
-void map__fixup_start(struct map *self);
-void map__fixup_end(struct map *self);
-
int event__synthesize_thread(pid_t pid,
int (*process)(event_t *event,
struct perf_session *session),
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 8a0bca55106..709e3252f04 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -105,24 +105,28 @@ struct perf_trace_event_type {
static int event_count;
static struct perf_trace_event_type *events;
-void perf_header__push_event(u64 id, const char *name)
+int perf_header__push_event(u64 id, const char *name)
{
if (strlen(name) > MAX_EVENT_NAME)
pr_warning("Event %s will be truncated\n", name);
if (!events) {
events = malloc(sizeof(struct perf_trace_event_type));
- if (!events)
- die("nomem");
+ if (events == NULL)
+ return -ENOMEM;
} else {
- events = realloc(events, (event_count + 1) * sizeof(struct perf_trace_event_type));
- if (!events)
- die("nomem");
+ struct perf_trace_event_type *nevents;
+
+ nevents = realloc(events, (event_count + 1) * sizeof(*events));
+ if (nevents == NULL)
+ return -ENOMEM;
+ events = nevents;
}
memset(&events[event_count], 0, sizeof(struct perf_trace_event_type));
events[event_count].event_id = id;
strncpy(events[event_count].name, name, MAX_EVENT_NAME - 1);
event_count++;
+ return 0;
}
char *perf_header__find_event(u64 id)
@@ -169,20 +173,23 @@ static int do_write(int fd, const void *buf, size_t size)
return 0;
}
+#define dsos__for_each_with_build_id(pos, head) \
+ list_for_each_entry(pos, head, node) \
+ if (!pos->has_build_id) \
+ continue; \
+ else
+
static int __dsos__write_buildid_table(struct list_head *head, int fd)
{
#define NAME_ALIGN 64
struct dso *pos;
static const char zero_buf[NAME_ALIGN];
- list_for_each_entry(pos, head, node) {
+ dsos__for_each_with_build_id(pos, head) {
int err;
struct build_id_event b;
- size_t len;
+ size_t len = pos->long_name_len + 1;
- if (!pos->has_build_id)
- continue;
- len = pos->long_name_len + 1;
len = ALIGN(len, NAME_ALIGN);
memset(&b, 0, sizeof(b));
memcpy(&b.build_id, pos->build_id, sizeof(pos->build_id));
@@ -209,6 +216,74 @@ static int dsos__write_buildid_table(int fd)
return err;
}
+static int dso__cache_build_id(struct dso *self, const char *debugdir)
+{
+ const size_t size = PATH_MAX;
+ char *filename = malloc(size),
+ *linkname = malloc(size), *targetname, *sbuild_id;
+ int len, err = -1;
+
+ if (filename == NULL || linkname == NULL)
+ goto out_free;
+
+ len = snprintf(filename, size, "%s%s", debugdir, self->long_name);
+ if (mkdir_p(filename, 0755))
+ goto out_free;
+
+ len += snprintf(filename + len, sizeof(filename) - len, "/");
+ sbuild_id = filename + len;
+ build_id__sprintf(self->build_id, sizeof(self->build_id), sbuild_id);
+
+ if (access(filename, F_OK) && link(self->long_name, filename) &&
+ copyfile(self->long_name, filename))
+ goto out_free;
+
+ len = snprintf(linkname, size, "%s/.build-id/%.2s",
+ debugdir, sbuild_id);
+
+ if (access(linkname, X_OK) && mkdir_p(linkname, 0755))
+ goto out_free;
+
+ snprintf(linkname + len, size - len, "/%s", sbuild_id + 2);
+ targetname = filename + strlen(debugdir) - 5;
+ memcpy(targetname, "../..", 5);
+
+ if (symlink(targetname, linkname) == 0)
+ err = 0;
+out_free:
+ free(filename);
+ free(linkname);
+ return err;
+}
+
+static int __dsos__cache_build_ids(struct list_head *head, const char *debugdir)
+{
+ struct dso *pos;
+ int err = 0;
+
+ dsos__for_each_with_build_id(pos, head)
+ if (dso__cache_build_id(pos, debugdir))
+ err = -1;
+
+ return err;
+}
+
+static int dsos__cache_build_ids(void)
+{
+ int err_kernel, err_user;
+ char debugdir[PATH_MAX];
+
+ snprintf(debugdir, sizeof(debugdir), "%s/%s", getenv("HOME"),
+ DEBUG_CACHE_DIR);
+
+ if (mkdir(debugdir, 0755) != 0 && errno != EEXIST)
+ return -1;
+
+ err_kernel = __dsos__cache_build_ids(&dsos__kernel, debugdir);
+ err_user = __dsos__cache_build_ids(&dsos__user, debugdir);
+ return err_kernel || err_user ? -1 : 0;
+}
+
static int perf_header__adds_write(struct perf_header *self, int fd)
{
int nr_sections;
@@ -258,6 +333,7 @@ static int perf_header__adds_write(struct perf_header *self, int fd)
goto out_free;
}
buildid_sec->size = lseek(fd, 0, SEEK_CUR) - buildid_sec->offset;
+ dsos__cache_build_ids();
}
lseek(fd, sec_start, SEEK_SET);
@@ -360,19 +436,19 @@ int perf_header__write(struct perf_header *self, int fd, bool at_exit)
return 0;
}
-static void do_read(int fd, void *buf, size_t size)
+static int do_read(int fd, void *buf, size_t size)
{
while (size) {
int ret = read(fd, buf, size);
- if (ret < 0)
- die("failed to read");
- if (ret == 0)
- die("failed to read: missing data");
+ if (ret <= 0)
+ return -1;
size -= ret;
buf += ret;
}
+
+ return 0;
}
int perf_header__process_sections(struct perf_header *self, int fd,
@@ -383,7 +459,7 @@ int perf_header__process_sections(struct perf_header *self, int fd,
int nr_sections;
int sec_size;
int idx = 0;
- int err = 0, feat = 1;
+ int err = -1, feat = 1;
nr_sections = bitmap_weight(self->adds_features, HEADER_FEAT_BITS);
if (!nr_sections)
@@ -397,8 +473,10 @@ int perf_header__process_sections(struct perf_header *self, int fd,
lseek(fd, self->data_offset + self->data_size, SEEK_SET);
- do_read(fd, feat_sec, sec_size);
+ if (do_read(fd, feat_sec, sec_size))
+ goto out_free;
+ err = 0;
while (idx < nr_sections && feat < HEADER_LAST_FEATURE) {
if (perf_header__has_feat(self, feat)) {
struct perf_file_section *sec = &feat_sec[idx++];
@@ -409,18 +487,18 @@ int perf_header__process_sections(struct perf_header *self, int fd,
}
++feat;
}
-
+out_free:
free(feat_sec);
return err;
-};
+}
int perf_file_header__read(struct perf_file_header *self,
struct perf_header *ph, int fd)
{
lseek(fd, 0, SEEK_SET);
- do_read(fd, self, sizeof(*self));
- if (self->magic != PERF_MAGIC ||
+ if (do_read(fd, self, sizeof(*self)) ||
+ self->magic != PERF_MAGIC ||
self->attr_size != sizeof(struct perf_file_attr))
return -1;
@@ -486,7 +564,8 @@ int perf_header__read(struct perf_header *self, int fd)
struct perf_header_attr *attr;
off_t tmp;
- do_read(fd, &f_attr, sizeof(f_attr));
+ if (do_read(fd, &f_attr, sizeof(f_attr)))
+ goto out_errno;
tmp = lseek(fd, 0, SEEK_CUR);
attr = perf_header_attr__new(&f_attr.attr);
@@ -497,7 +576,8 @@ int perf_header__read(struct perf_header *self, int fd)
lseek(fd, f_attr.ids.offset, SEEK_SET);
for (j = 0; j < nr_ids; j++) {
- do_read(fd, &f_id, sizeof(f_id));
+ if (do_read(fd, &f_id, sizeof(f_id)))
+ goto out_errno;
if (perf_header_attr__add_id(attr, f_id) < 0) {
perf_header_attr__delete(attr);
@@ -517,7 +597,8 @@ int perf_header__read(struct perf_header *self, int fd)
events = malloc(f_header.event_types.size);
if (events == NULL)
return -ENOMEM;
- do_read(fd, events, f_header.event_types.size);
+ if (do_read(fd, events, f_header.event_types.size))
+ goto out_errno;
event_count = f_header.event_types.size / sizeof(struct perf_trace_event_type);
}
@@ -527,6 +608,8 @@ int perf_header__read(struct perf_header *self, int fd)
self->frozen = 1;
return 0;
+out_errno:
+ return -errno;
}
u64 perf_header__sample_type(struct perf_header *header)
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index d118d05d3ab..2b69aab67e3 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -64,7 +64,7 @@ int perf_header__write(struct perf_header *self, int fd, bool at_exit);
int perf_header__add_attr(struct perf_header *self,
struct perf_header_attr *attr);
-void perf_header__push_event(u64 id, const char *name);
+int perf_header__push_event(u64 id, const char *name);
char *perf_header__find_event(u64 id);
struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr);
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
new file mode 100644
index 00000000000..72f0b6ab5ea
--- /dev/null
+++ b/tools/perf/util/map.h
@@ -0,0 +1,73 @@
+#ifndef __PERF_MAP_H
+#define __PERF_MAP_H
+
+#include <linux/compiler.h>
+#include <linux/list.h>
+#include <linux/rbtree.h>
+#include <linux/types.h>
+
+enum map_type {
+ MAP__FUNCTION = 0,
+ MAP__VARIABLE,
+};
+
+#define MAP__NR_TYPES (MAP__VARIABLE + 1)
+
+struct dso;
+
+struct map {
+ union {
+ struct rb_node rb_node;
+ struct list_head node;
+ };
+ u64 start;
+ u64 end;
+ enum map_type type;
+ u64 pgoff;
+ u64 (*map_ip)(struct map *, u64);
+ u64 (*unmap_ip)(struct map *, u64);
+ struct dso *dso;
+};
+
+static inline u64 map__map_ip(struct map *map, u64 ip)
+{
+ return ip - map->start + map->pgoff;
+}
+
+static inline u64 map__unmap_ip(struct map *map, u64 ip)
+{
+ return ip + map->start - map->pgoff;
+}
+
+static inline u64 identity__map_ip(struct map *map __used, u64 ip)
+{
+ return ip;
+}
+
+struct symbol;
+struct mmap_event;
+
+typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
+
+void map__init(struct map *self, enum map_type type,
+ u64 start, u64 end, u64 pgoff, struct dso *dso);
+struct map *map__new(struct mmap_event *event, enum map_type,
+ char *cwd, int cwdlen);
+void map__delete(struct map *self);
+struct map *map__clone(struct map *self);
+int map__overlap(struct map *l, struct map *r);
+size_t map__fprintf(struct map *self, FILE *fp);
+
+struct perf_session;
+
+int map__load(struct map *self, struct perf_session *session,
+ symbol_filter_t filter);
+struct symbol *map__find_symbol(struct map *self, struct perf_session *session,
+ u64 addr, symbol_filter_t filter);
+struct symbol *map__find_symbol_by_name(struct map *self, const char *name,
+ struct perf_session *session,
+ symbol_filter_t filter);
+void map__fixup_start(struct map *self);
+void map__fixup_end(struct map *self);
+
+#endif /* __PERF_MAP_H */
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index e5bc0fb016b..609d5a9470c 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -753,11 +753,11 @@ modifier:
return ret;
}
-static void store_event_type(const char *orgname)
+static int store_event_type(const char *orgname)
{
char filename[PATH_MAX], *c;
FILE *file;
- int id;
+ int id, n;
sprintf(filename, "%s/", debugfs_path);
strncat(filename, orgname, strlen(orgname));
@@ -769,11 +769,14 @@ static void store_event_type(const char *orgname)
file = fopen(filename, "r");
if (!file)
- return;
- if (fscanf(file, "%i", &id) < 1)
- die("cannot store event ID");
+ return 0;
+ n = fscanf(file, "%i", &id);
fclose(file);
- perf_header__push_event(id, orgname);
+ if (n < 1) {
+ pr_err("cannot store event ID\n");
+ return -EINVAL;
+ }
+ return perf_header__push_event(id, orgname);
}
int parse_events(const struct option *opt __used, const char *str, int unset __used)
@@ -782,7 +785,8 @@ int parse_events(const struct option *opt __used, const char *str, int unset __u
enum event_result ret;
if (strchr(str, ':'))
- store_event_type(str);
+ if (store_event_type(str) < 0)
+ return -1;
for (;;) {
if (nr_counters == MAX_COUNTERS)
@@ -835,11 +839,12 @@ int parse_filter(const struct option *opt __used, const char *str,
}
static const char * const event_type_descriptors[] = {
- "",
"Hardware event",
"Software event",
"Tracepoint event",
"Hardware cache event",
+ "Raw hardware event descriptor",
+ "Hardware breakpoint",
};
/*
@@ -872,7 +877,7 @@ static void print_tracepoint_events(void)
snprintf(evt_path, MAXPATHLEN, "%s:%s",
sys_dirent.d_name, evt_dirent.d_name);
printf(" %-42s [%s]\n", evt_path,
- event_type_descriptors[PERF_TYPE_TRACEPOINT+1]);
+ event_type_descriptors[PERF_TYPE_TRACEPOINT]);
}
closedir(evt_dir);
}
@@ -892,9 +897,7 @@ void print_events(void)
printf("List of pre-defined events (to be used in -e):\n");
for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
- type = syms->type + 1;
- if (type >= ARRAY_SIZE(event_type_descriptors))
- type = 0;
+ type = syms->type;
if (type != prev_type)
printf("\n");
@@ -919,17 +922,19 @@ void print_events(void)
for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
printf(" %-42s [%s]\n",
event_cache_name(type, op, i),
- event_type_descriptors[4]);
+ event_type_descriptors[PERF_TYPE_HW_CACHE]);
}
}
}
printf("\n");
- printf(" %-42s [raw hardware event descriptor]\n",
- "rNNN");
+ printf(" %-42s [%s]\n",
+ "rNNN", event_type_descriptors[PERF_TYPE_RAW]);
printf("\n");
- printf(" %-42s [hardware breakpoint]\n", "mem:<addr>[:access]");
+ printf(" %-42s [%s]\n",
+ "mem:<addr>[:access]",
+ event_type_descriptors[PERF_TYPE_BREAKPOINT]);
printf("\n");
print_tracepoint_events();
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 29465d44004..8e532d9824f 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -368,7 +368,7 @@ static int open_kprobe_events(int flags, int mode)
if (ret < 0) {
if (errno == ENOENT)
die("kprobe_events file does not exist -"
- " please rebuild with CONFIG_KPROBE_TRACER.");
+ " please rebuild with CONFIG_KPROBE_EVENT.");
else
die("Could not open kprobe_events file: %s",
strerror(errno));
diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
index a4086aaddb7..e3f396806e6 100644
--- a/tools/perf/util/probe-finder.h
+++ b/tools/perf/util/probe-finder.h
@@ -1,6 +1,8 @@
#ifndef _PROBE_FINDER_H
#define _PROBE_FINDER_H
+#include "util.h"
+
#define MAX_PATH_LEN 256
#define MAX_PROBE_BUFFER 1024
#define MAX_PROBES 128
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index ce3a6c8abe7..7f0537d1add 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -66,6 +66,7 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc
self->mmap_window = 32;
self->cwd = NULL;
self->cwdlen = 0;
+ self->unknown_events = 0;
map_groups__init(&self->kmaps);
if (perf_session__create_kernel_maps(self) < 0)
@@ -73,6 +74,8 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc
if (mode == O_RDONLY && perf_session__open(self, force) < 0)
goto out_delete;
+
+ self->sample_type = perf_header__sample_type(&self->header);
out:
return self;
out_free:
@@ -148,3 +151,253 @@ struct symbol **perf_session__resolve_callchain(struct perf_session *self,
return syms;
}
+
+static int process_event_stub(event_t *event __used,
+ struct perf_session *session __used)
+{
+ dump_printf(": unhandled!\n");
+ return 0;
+}
+
+static void perf_event_ops__fill_defaults(struct perf_event_ops *handler)
+{
+ if (handler->sample == NULL)
+ handler->sample = process_event_stub;
+ if (handler->mmap == NULL)
+ handler->mmap = process_event_stub;
+ if (handler->comm == NULL)
+ handler->comm = process_event_stub;
+ if (handler->fork == NULL)
+ handler->fork = process_event_stub;
+ if (handler->exit == NULL)
+ handler->exit = process_event_stub;
+ if (handler->lost == NULL)
+ handler->lost = process_event_stub;
+ if (handler->read == NULL)
+ handler->read = process_event_stub;
+ if (handler->throttle == NULL)
+ handler->throttle = process_event_stub;
+ if (handler->unthrottle == NULL)
+ handler->unthrottle = process_event_stub;
+}
+
+static const char *event__name[] = {
+ [0] = "TOTAL",
+ [PERF_RECORD_MMAP] = "MMAP",
+ [PERF_RECORD_LOST] = "LOST",
+ [PERF_RECORD_COMM] = "COMM",
+ [PERF_RECORD_EXIT] = "EXIT",
+ [PERF_RECORD_THROTTLE] = "THROTTLE",
+ [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
+ [PERF_RECORD_FORK] = "FORK",
+ [PERF_RECORD_READ] = "READ",
+ [PERF_RECORD_SAMPLE] = "SAMPLE",
+};
+
+unsigned long event__total[PERF_RECORD_MAX];
+
+void event__print_totals(void)
+{
+ int i;
+ for (i = 0; i < PERF_RECORD_MAX; ++i)
+ pr_info("%10s events: %10ld\n",
+ event__name[i], event__total[i]);
+}
+
+static int perf_session__process_event(struct perf_session *self,
+ event_t *event,
+ struct perf_event_ops *ops,
+ unsigned long offset, unsigned long head)
+{
+ trace_event(event);
+
+ if (event->header.type < PERF_RECORD_MAX) {
+ dump_printf("%p [%p]: PERF_RECORD_%s",
+ (void *)(offset + head),
+ (void *)(long)(event->header.size),
+ event__name[event->header.type]);
+ ++event__total[0];
+ ++event__total[event->header.type];
+ }
+
+ switch (event->header.type) {
+ case PERF_RECORD_SAMPLE:
+ return ops->sample(event, self);
+ case PERF_RECORD_MMAP:
+ return ops->mmap(event, self);
+ case PERF_RECORD_COMM:
+ return ops->comm(event, self);
+ case PERF_RECORD_FORK:
+ return ops->fork(event, self);
+ case PERF_RECORD_EXIT:
+ return ops->exit(event, self);
+ case PERF_RECORD_LOST:
+ return ops->lost(event, self);
+ case PERF_RECORD_READ:
+ return ops->read(event, self);
+ case PERF_RECORD_THROTTLE:
+ return ops->throttle(event, self);
+ case PERF_RECORD_UNTHROTTLE:
+ return ops->unthrottle(event, self);
+ default:
+ self->unknown_events++;
+ return -1;
+ }
+}
+
+int perf_header__read_build_ids(int input, u64 offset, u64 size)
+{
+ struct build_id_event bev;
+ char filename[PATH_MAX];
+ u64 limit = offset + size;
+ int err = -1;
+
+ while (offset < limit) {
+ struct dso *dso;
+ ssize_t len;
+
+ if (read(input, &bev, sizeof(bev)) != sizeof(bev))
+ goto out;
+
+ len = bev.header.size - sizeof(bev);
+ if (read(input, filename, len) != len)
+ goto out;
+
+ dso = dsos__findnew(filename);
+ if (dso != NULL)
+ dso__set_build_id(dso, &bev.build_id);
+
+ offset += bev.header.size;
+ }
+ err = 0;
+out:
+ return err;
+}
+
+static struct thread *perf_session__register_idle_thread(struct perf_session *self)
+{
+ struct thread *thread = perf_session__findnew(self, 0);
+
+ if (thread == NULL || thread__set_comm(thread, "swapper")) {
+ pr_err("problem inserting idle task.\n");
+ thread = NULL;
+ }
+
+ return thread;
+}
+
+int perf_session__process_events(struct perf_session *self,
+ struct perf_event_ops *ops)
+{
+ int err;
+ unsigned long head, shift;
+ unsigned long offset = 0;
+ size_t page_size;
+ event_t *event;
+ uint32_t size;
+ char *buf;
+
+ if (perf_session__register_idle_thread(self) == NULL)
+ return -ENOMEM;
+
+ perf_event_ops__fill_defaults(ops);
+
+ page_size = getpagesize();
+
+ head = self->header.data_offset;
+
+ if (!symbol_conf.full_paths) {
+ char bf[PATH_MAX];
+
+ if (getcwd(bf, sizeof(bf)) == NULL) {
+ err = -errno;
+out_getcwd_err:
+ pr_err("failed to get the current directory\n");
+ goto out_err;
+ }
+ self->cwd = strdup(bf);
+ if (self->cwd == NULL) {
+ err = -ENOMEM;
+ goto out_getcwd_err;
+ }
+ self->cwdlen = strlen(self->cwd);
+ }
+
+ shift = page_size * (head / page_size);
+ offset += shift;
+ head -= shift;
+
+remap:
+ buf = mmap(NULL, page_size * self->mmap_window, PROT_READ,
+ MAP_SHARED, self->fd, offset);
+ if (buf == MAP_FAILED) {
+ pr_err("failed to mmap file\n");
+ err = -errno;
+ goto out_err;
+ }
+
+more:
+ event = (event_t *)(buf + head);
+
+ size = event->header.size;
+ if (size == 0)
+ size = 8;
+
+ if (head + event->header.size >= page_size * self->mmap_window) {
+ int munmap_ret;
+
+ shift = page_size * (head / page_size);
+
+ munmap_ret = munmap(buf, page_size * self->mmap_window);
+ assert(munmap_ret == 0);
+
+ offset += shift;
+ head -= shift;
+ goto remap;
+ }
+
+ size = event->header.size;
+
+ dump_printf("\n%p [%p]: event: %d\n",
+ (void *)(offset + head),
+ (void *)(long)event->header.size,
+ event->header.type);
+
+ if (size == 0 ||
+ perf_session__process_event(self, event, ops, offset, head) < 0) {
+ dump_printf("%p [%p]: skipping unknown header type: %d\n",
+ (void *)(offset + head),
+ (void *)(long)(event->header.size),
+ event->header.type);
+ /*
+ * assume we lost track of the stream, check alignment, and
+ * increment a single u64 in the hope to catch on again 'soon'.
+ */
+ if (unlikely(head & 7))
+ head &= ~7ULL;
+
+ size = 8;
+ }
+
+ head += size;
+
+ if (offset + head >= self->header.data_offset + self->header.data_size)
+ goto done;
+
+ if (offset + head < self->size)
+ goto more;
+done:
+ err = 0;
+out_err:
+ return err;
+}
+
+bool perf_session__has_traces(struct perf_session *self, const char *msg)
+{
+ if (!(self->sample_type & PERF_SAMPLE_RAW)) {
+ pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg);
+ return false;
+ }
+
+ return true;
+}
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 32eaa1bada0..77c5ee2993c 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -20,6 +20,7 @@ struct perf_session {
struct thread *last_match;
struct events_stats events_stats;
unsigned long event_total[PERF_RECORD_MAX];
+ unsigned long unknown_events;
struct rb_root hists;
u64 sample_type;
int fd;
@@ -31,18 +32,15 @@ struct perf_session {
typedef int (*event_op)(event_t *self, struct perf_session *session);
struct perf_event_ops {
- event_op process_sample_event;
- event_op process_mmap_event;
- event_op process_comm_event;
- event_op process_fork_event;
- event_op process_exit_event;
- event_op process_lost_event;
- event_op process_read_event;
- event_op process_throttle_event;
- event_op process_unthrottle_event;
- int (*sample_type_check)(struct perf_session *session);
- unsigned long total_unknown;
- bool full_paths;
+ event_op sample,
+ mmap,
+ comm,
+ fork,
+ exit,
+ lost,
+ read,
+ throttle,
+ unthrottle;
};
struct perf_session *perf_session__new(const char *filename, int mode, bool force);
@@ -56,6 +54,8 @@ struct symbol **perf_session__resolve_callchain(struct perf_session *self,
struct ip_callchain *chain,
struct symbol **parent);
+bool perf_session__has_traces(struct perf_session *self, const char *msg);
+
int perf_header__read_build_ids(int input, u64 offset, u64 file_size);
#endif /* __PERF_SESSION_H */
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index ab92763edb0..79ca6a099f9 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -22,6 +22,7 @@
enum dso_origin {
DSO__ORIG_KERNEL = 0,
DSO__ORIG_JAVA_JIT,
+ DSO__ORIG_BUILD_ID_CACHE,
DSO__ORIG_FEDORA,
DSO__ORIG_UBUNTU,
DSO__ORIG_BUILDID,
@@ -1191,6 +1192,7 @@ char dso__symtab_origin(const struct dso *self)
static const char origin[] = {
[DSO__ORIG_KERNEL] = 'k',
[DSO__ORIG_JAVA_JIT] = 'j',
+ [DSO__ORIG_BUILD_ID_CACHE] = 'B',
[DSO__ORIG_FEDORA] = 'f',
[DSO__ORIG_UBUNTU] = 'u',
[DSO__ORIG_BUILDID] = 'b',
@@ -1209,6 +1211,7 @@ int dso__load(struct dso *self, struct map *map, struct perf_session *session,
int size = PATH_MAX;
char *name;
u8 build_id[BUILD_ID_SIZE];
+ char build_id_hex[BUILD_ID_SIZE * 2 + 1];
int ret = -1;
int fd;
@@ -1230,8 +1233,16 @@ int dso__load(struct dso *self, struct map *map, struct perf_session *session,
return ret;
}
- self->origin = DSO__ORIG_FEDORA - 1;
+ self->origin = DSO__ORIG_BUILD_ID_CACHE;
+ if (self->has_build_id) {
+ build_id__sprintf(self->build_id, sizeof(self->build_id),
+ build_id_hex);
+ snprintf(name, size, "%s/%s/.build-id/%.2s/%s",
+ getenv("HOME"), DEBUG_CACHE_DIR,
+ build_id_hex, build_id_hex + 2);
+ goto open_file;
+ }
more:
do {
self->origin++;
@@ -1247,8 +1258,6 @@ more:
case DSO__ORIG_BUILDID:
if (filename__read_build_id(self->long_name, build_id,
sizeof(build_id))) {
- char build_id_hex[BUILD_ID_SIZE * 2 + 1];
-
build_id__sprintf(build_id, sizeof(build_id),
build_id_hex);
snprintf(name, size,
@@ -1276,7 +1285,7 @@ compare_build_id:
if (!dso__build_id_equal(self, build_id))
goto more;
}
-
+open_file:
fd = open(name, O_RDONLY);
} while (fd < 0);
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 8aded2356f7..f27e158943e 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -8,6 +8,8 @@
#include <linux/rbtree.h>
#include "event.h"
+#define DEBUG_CACHE_DIR ".debug"
+
#ifdef HAVE_CPLUS_DEMANGLE
extern char *cplus_demangle(const char *, int);
@@ -58,7 +60,8 @@ struct symbol_conf {
sort_by_name,
show_nr_samples,
use_callchain,
- exclude_other;
+ exclude_other,
+ full_paths;
const char *vmlinux_name,
*field_sep;
char *dso_list_str,
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index cace3559553..407fd65b6cd 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -20,6 +20,7 @@
*/
#define _GNU_SOURCE
#include <dirent.h>
+#include <mntent.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -37,6 +38,7 @@
#include "../perf.h"
#include "trace-event.h"
+#include "debugfs.h"
#define VERSION "0.5"
@@ -101,32 +103,12 @@ void *malloc_or_die(unsigned int size)
static const char *find_debugfs(void)
{
- static char debugfs[MAX_PATH+1];
- static int debugfs_found;
- char type[100];
- FILE *fp;
-
- if (debugfs_found)
- return debugfs;
-
- if ((fp = fopen("/proc/mounts","r")) == NULL)
- die("Can't open /proc/mounts for read");
-
- while (fscanf(fp, "%*s %"
- STR(MAX_PATH)
- "s %99s %*s %*d %*d\n",
- debugfs, type) == 2) {
- if (strcmp(type, "debugfs") == 0)
- break;
- }
- fclose(fp);
-
- if (strcmp(type, "debugfs") != 0)
- die("debugfs not mounted, please mount");
+ const char *path = debugfs_mount(NULL);
- debugfs_found = 1;
+ if (!path)
+ die("Your kernel not support debugfs filesystem");
- return debugfs;
+ return path;
}
/*
@@ -271,6 +253,8 @@ static void read_header_files(void)
write_or_die("header_page", 12);
write_or_die(&size, 8);
check_size = copy_file_fd(fd);
+ close(fd);
+
if (size != check_size)
die("wrong size for '%s' size=%lld read=%lld",
path, size, check_size);
@@ -289,6 +273,7 @@ static void read_header_files(void)
if (size != check_size)
die("wrong size for '%s'", path);
put_tracing_file(path);
+ close(fd);
}
static bool name_in_tp_list(char *sys, struct tracepoint_path *tps)
@@ -317,7 +302,8 @@ static void copy_event_system(const char *sys, struct tracepoint_path *tps)
die("can't read directory '%s'", sys);
while ((dent = readdir(dir))) {
- if (strcmp(dent->d_name, ".") == 0 ||
+ if (dent->d_type != DT_DIR ||
+ strcmp(dent->d_name, ".") == 0 ||
strcmp(dent->d_name, "..") == 0 ||
!name_in_tp_list(dent->d_name, tps))
continue;
@@ -334,7 +320,8 @@ static void copy_event_system(const char *sys, struct tracepoint_path *tps)
rewinddir(dir);
while ((dent = readdir(dir))) {
- if (strcmp(dent->d_name, ".") == 0 ||
+ if (dent->d_type != DT_DIR ||
+ strcmp(dent->d_name, ".") == 0 ||
strcmp(dent->d_name, "..") == 0 ||
!name_in_tp_list(dent->d_name, tps))
continue;
@@ -353,6 +340,7 @@ static void copy_event_system(const char *sys, struct tracepoint_path *tps)
free(format);
}
+ closedir(dir);
}
static void read_ftrace_files(struct tracepoint_path *tps)
@@ -394,26 +382,21 @@ static void read_event_files(struct tracepoint_path *tps)
die("can't read directory '%s'", path);
while ((dent = readdir(dir))) {
- if (strcmp(dent->d_name, ".") == 0 ||
+ if (dent->d_type != DT_DIR ||
+ strcmp(dent->d_name, ".") == 0 ||
strcmp(dent->d_name, "..") == 0 ||
strcmp(dent->d_name, "ftrace") == 0 ||
!system_in_tp_list(dent->d_name, tps))
continue;
- sys = malloc_or_die(strlen(path) + strlen(dent->d_name) + 2);
- sprintf(sys, "%s/%s", path, dent->d_name);
- ret = stat(sys, &st);
- free(sys);
- if (ret < 0)
- continue;
- if (S_ISDIR(st.st_mode))
- count++;
+ count++;
}
write_or_die(&count, 4);
rewinddir(dir);
while ((dent = readdir(dir))) {
- if (strcmp(dent->d_name, ".") == 0 ||
+ if (dent->d_type != DT_DIR ||
+ strcmp(dent->d_name, ".") == 0 ||
strcmp(dent->d_name, "..") == 0 ||
strcmp(dent->d_name, "ftrace") == 0 ||
!system_in_tp_list(dent->d_name, tps))
@@ -422,14 +405,13 @@ static void read_event_files(struct tracepoint_path *tps)
sprintf(sys, "%s/%s", path, dent->d_name);
ret = stat(sys, &st);
if (ret >= 0) {
- if (S_ISDIR(st.st_mode)) {
- write_or_die(dent->d_name, strlen(dent->d_name) + 1);
- copy_event_system(sys, tps);
- }
+ write_or_die(dent->d_name, strlen(dent->d_name) + 1);
+ copy_event_system(sys, tps);
}
free(sys);
}
+ closedir(dir);
put_tracing_file(path);
}
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
new file mode 100644
index 00000000000..f3c0798a5e7
--- /dev/null
+++ b/tools/perf/util/util.c
@@ -0,0 +1,69 @@
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include "util.h"
+
+int mkdir_p(char *path, mode_t mode)
+{
+ struct stat st;
+ int err;
+ char *d = path;
+
+ if (*d != '/')
+ return -1;
+
+ if (stat(path, &st) == 0)
+ return 0;
+
+ while (*++d == '/');
+
+ while ((d = strchr(d, '/'))) {
+ *d = '\0';
+ err = stat(path, &st) && mkdir(path, mode);
+ *d++ = '/';
+ if (err)
+ return -1;
+ while (*d == '/')
+ ++d;
+ }
+ return (stat(path, &st) && mkdir(path, mode)) ? -1 : 0;
+}
+
+int copyfile(const char *from, const char *to)
+{
+ int fromfd, tofd;
+ struct stat st;
+ void *addr;
+ int err = -1;
+
+ if (stat(from, &st))
+ goto out;
+
+ fromfd = open(from, O_RDONLY);
+ if (fromfd < 0)
+ goto out;
+
+ tofd = creat(to, 0755);
+ if (tofd < 0)
+ goto out_close_from;
+
+ addr = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fromfd, 0);
+ if (addr == MAP_FAILED)
+ goto out_close_to;
+
+ if (write(tofd, addr, st.st_size) == st.st_size)
+ err = 0;
+
+ munmap(addr, st.st_size);
+out_close_to:
+ close(tofd);
+ if (err)
+ unlink(to);
+out_close_from:
+ close(fromfd);
+out:
+ return err;
+}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index c673d882588..0f5b2a6f108 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -403,4 +403,7 @@ void git_qsort(void *base, size_t nmemb, size_t size,
#endif
#endif
+int mkdir_p(char *path, mode_t mode);
+int copyfile(const char *from, const char *to);
+
#endif