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perf/core improvements and fixes:

Browse Source 
User visible:
 
 o Support S/390 in 'perf kvm stat' (Alexander Yarygin)
 
 Developer Stuff:
 
 o Various fixes and prep work related to supporting Intel PT (Adrian Hunter)
 
 o Introduce multiple debug variables control (Jiri Olsa)
 
 o Add callchain and additional sample information for python scripts (Joseph Schuchart)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

User visible changes:

  o Support S/390 in 'perf kvm stat' (Alexander Yarygin)

Developer Stuff:

  o Various fixes and prep work related to supporting Intel PT (Adrian Hunter)

  o Introduce multiple debug variables control (Jiri Olsa)

  o Add callchain and additional sample information for python scripts (Joseph Schuchart)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2014-07-18 06:16:06 +02:00
commit ec6dbcb7ad
85 changed files with 1170 additions and 470 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/s390/include/uapi/asm/Kbuild
View File

@ -16,6 +16,7 @@ header-y += ioctls.h
header-y += ipcbuf.h
header-y += kvm.h
header-y += kvm_para.h
header-y += kvm_perf.h
header-y += kvm_virtio.h
header-y += mman.h
header-y += monwriter.h

25
arch/s390/include/uapi/asm/kvm_perf.h Normal file
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@ -0,0 +1,25 @@
/*
* Definitions for perf-kvm on s390
*
* Copyright 2014 IBM Corp.
* Author(s): Alexander Yarygin <yarygin@linux.vnet.ibm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (version 2 only)
* as published by the Free Software Foundation.
*/
#ifndef __LINUX_KVM_PERF_S390_H
#define __LINUX_KVM_PERF_S390_H
#include <asm/sie.h>
#define DECODE_STR_LEN 40
#define VCPU_ID "id"
#define KVM_ENTRY_TRACE "kvm:kvm_s390_sie_enter"
#define KVM_EXIT_TRACE "kvm:kvm_s390_sie_exit"
#define KVM_EXIT_REASON "icptcode"
#endif

1
arch/x86/include/uapi/asm/Kbuild
View File

@ -22,6 +22,7 @@ header-y += ipcbuf.h
header-y += ist.h
header-y += kvm.h
header-y += kvm_para.h
header-y += kvm_perf.h
header-y += ldt.h
header-y += mce.h
header-y += mman.h

16
arch/x86/include/uapi/asm/kvm_perf.h Normal file
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@ -0,0 +1,16 @@
#ifndef _ASM_X86_KVM_PERF_H
#define _ASM_X86_KVM_PERF_H
#include <asm/svm.h>
#include <asm/vmx.h>
#include <asm/kvm.h>
#define DECODE_STR_LEN 20
#define VCPU_ID "vcpu_id"
#define KVM_ENTRY_TRACE "kvm:kvm_entry"
#define KVM_EXIT_TRACE "kvm:kvm_exit"
#define KVM_EXIT_REASON "exit_reason"
#endif /* _ASM_X86_KVM_PERF_H */

16
tools/perf/Documentation/perf-kvm.txt
View File

@ -51,9 +51,9 @@ There are a couple of variants of perf kvm:
'perf kvm stat <command>' to run a command and gather performance counter
statistics.
Especially, perf 'kvm stat record/report' generates a statistical analysis
of KVM events. Currently, vmexit, mmio and ioport events are supported.
'perf kvm stat record <command>' records kvm events and the events between
start and end <command>.
of KVM events. Currently, vmexit, mmio (x86 only) and ioport (x86 only)
events are supported. 'perf kvm stat record <command>' records kvm events
and the events between start and end <command>.
And this command produces a file which contains tracing results of kvm
events.
@ -103,8 +103,8 @@ STAT REPORT OPTIONS
analyze events which occures on this vcpu. (default: all vcpus)
--event=<value>::
event to be analyzed. Possible values: vmexit, mmio, ioport.
(default: vmexit)
event to be analyzed. Possible values: vmexit, mmio (x86 only),
ioport (x86 only). (default: vmexit)
-k::
--key=<value>::
Sorting key. Possible values: sample (default, sort by samples
@ -138,7 +138,8 @@ STAT LIVE OPTIONS
--event=<value>::
event to be analyzed. Possible values: vmexit, mmio, ioport.
event to be analyzed. Possible values: vmexit,
mmio (x86 only), ioport (x86 only).
(default: vmexit)
-k::
@ -147,7 +148,8 @@ STAT LIVE OPTIONS
number), time (sort by average time).
--duration=<value>::
Show events other than HLT that take longer than duration usecs.
Show events other than HLT (x86 only) or Wait state (s390 only)
that take longer than duration usecs.
SEE ALSO
--------

10
tools/perf/Documentation/perf.txt
View File

@ -8,7 +8,15 @@ perf - Performance analysis tools for Linux
SYNOPSIS
--------
[verse]
'perf' [--version] [--help] COMMAND [ARGS]
'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS]
OPTIONS
-------
--debug::
Setup debug variable (just verbose for now) in value
range (0, 10). Use like:
--debug verbose # sets verbose = 1
--debug verbose=2 # sets verbose = 2
DESCRIPTION
-----------

3
tools/perf/MANIFEST
View File

@ -37,3 +37,6 @@ arch/x86/include/asm/kvm_host.h
arch/x86/include/uapi/asm/svm.h
arch/x86/include/uapi/asm/vmx.h
arch/x86/include/uapi/asm/kvm.h
arch/x86/include/uapi/asm/kvm_perf.h
arch/s390/include/uapi/asm/sie.h
arch/s390/include/uapi/asm/kvm_perf.h

3
tools/perf/Makefile.perf
View File

@ -295,11 +295,13 @@ LIB_H += util/intlist.h
LIB_H += util/perf_regs.h
LIB_H += util/unwind.h
LIB_H += util/vdso.h
LIB_H += util/tsc.h
LIB_H += ui/helpline.h
LIB_H += ui/progress.h
LIB_H += ui/util.h
LIB_H += ui/ui.h
LIB_H += util/data.h
LIB_H += util/kvm-stat.h
LIB_OBJS += $(OUTPUT)util/abspath.o
LIB_OBJS += $(OUTPUT)util/alias.o
@ -373,6 +375,7 @@ LIB_OBJS += $(OUTPUT)util/stat.o
LIB_OBJS += $(OUTPUT)util/record.o
LIB_OBJS += $(OUTPUT)util/srcline.o
LIB_OBJS += $(OUTPUT)util/data.o
LIB_OBJS += $(OUTPUT)util/tsc.o
LIB_OBJS += $(OUTPUT)ui/setup.o
LIB_OBJS += $(OUTPUT)ui/helpline.o

2
tools/perf/arch/s390/Makefile
View File

@ -3,3 +3,5 @@ PERF_HAVE_DWARF_REGS := 1
LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
endif
LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o
HAVE_KVM_STAT_SUPPORT := 1
LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/kvm-stat.o

105
tools/perf/arch/s390/util/kvm-stat.c Normal file
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@ -0,0 +1,105 @@
/*
* Arch specific functions for perf kvm stat.
*
* Copyright 2014 IBM Corp.
* Author(s): Alexander Yarygin <yarygin@linux.vnet.ibm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (version 2 only)
* as published by the Free Software Foundation.
*/
#include "../../util/kvm-stat.h"
#include <asm/kvm_perf.h>
define_exit_reasons_table(sie_exit_reasons, sie_intercept_code);
define_exit_reasons_table(sie_icpt_insn_codes, icpt_insn_codes);
define_exit_reasons_table(sie_sigp_order_codes, sigp_order_codes);
define_exit_reasons_table(sie_diagnose_codes, diagnose_codes);
define_exit_reasons_table(sie_icpt_prog_codes, icpt_prog_codes);
static void event_icpt_insn_get_key(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
{
unsigned long insn;
insn = perf_evsel__intval(evsel, sample, "instruction");
key->key = icpt_insn_decoder(insn);
key->exit_reasons = sie_icpt_insn_codes;
}
static void event_sigp_get_key(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
{
key->key = perf_evsel__intval(evsel, sample, "order_code");
key->exit_reasons = sie_sigp_order_codes;
}
static void event_diag_get_key(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
{
key->key = perf_evsel__intval(evsel, sample, "code");
key->exit_reasons = sie_diagnose_codes;
}
static void event_icpt_prog_get_key(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
{
key->key = perf_evsel__intval(evsel, sample, "code");
key->exit_reasons = sie_icpt_prog_codes;
}
static struct child_event_ops child_events[] = {
{ .name = "kvm:kvm_s390_intercept_instruction",
.get_key = event_icpt_insn_get_key },
{ .name = "kvm:kvm_s390_handle_sigp",
.get_key = event_sigp_get_key },
{ .name = "kvm:kvm_s390_handle_diag",
.get_key = event_diag_get_key },
{ .name = "kvm:kvm_s390_intercept_prog",
.get_key = event_icpt_prog_get_key },
{ NULL, NULL },
};
static struct kvm_events_ops exit_events = {
.is_begin_event = exit_event_begin,
.is_end_event = exit_event_end,
.child_ops = child_events,
.decode_key = exit_event_decode_key,
.name = "VM-EXIT"
};
const char * const kvm_events_tp[] = {
"kvm:kvm_s390_sie_enter",
"kvm:kvm_s390_sie_exit",
"kvm:kvm_s390_intercept_instruction",
"kvm:kvm_s390_handle_sigp",
"kvm:kvm_s390_handle_diag",
"kvm:kvm_s390_intercept_prog",
NULL,
};
struct kvm_reg_events_ops kvm_reg_events_ops[] = {
{ .name = "vmexit", .ops = &exit_events },
{ NULL, NULL },
};
const char * const kvm_skip_events[] = {
"Wait state",
NULL,
};
int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid)
{
if (strstr(cpuid, "IBM/S390")) {
kvm->exit_reasons = sie_exit_reasons;
kvm->exit_reasons_isa = "SIE";
} else
return -ENOTSUP;
return 0;
}

1
tools/perf/arch/x86/Makefile
View File

@ -16,3 +16,4 @@ LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o
LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/tsc.o
LIB_H += arch/$(ARCH)/util/tsc.h
HAVE_KVM_STAT_SUPPORT := 1
LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/kvm-stat.o

1
tools/perf/arch/x86/tests/dwarf-unwind.c
View File

@ -3,6 +3,7 @@
#include "thread.h"
#include "map.h"
#include "event.h"
#include "debug.h"
#include "tests/tests.h"
#define STACK_SIZE 8192

156
tools/perf/arch/x86/util/kvm-stat.c Normal file
View File

@ -0,0 +1,156 @@
#include "../../util/kvm-stat.h"
#include <asm/kvm_perf.h>
define_exit_reasons_table(vmx_exit_reasons, VMX_EXIT_REASONS);
define_exit_reasons_table(svm_exit_reasons, SVM_EXIT_REASONS);
static struct kvm_events_ops exit_events = {
.is_begin_event = exit_event_begin,
.is_end_event = exit_event_end,
.decode_key = exit_event_decode_key,
.name = "VM-EXIT"
};
/*
* For the mmio events, we treat:
* the time of MMIO write: kvm_mmio(KVM_TRACE_MMIO_WRITE...) -> kvm_entry
* the time of MMIO read: kvm_exit -> kvm_mmio(KVM_TRACE_MMIO_READ...).
*/
static void mmio_event_get_key(struct perf_evsel *evsel, struct perf_sample *sample,
struct event_key *key)
{
key->key = perf_evsel__intval(evsel, sample, "gpa");
key->info = perf_evsel__intval(evsel, sample, "type");
}
#define KVM_TRACE_MMIO_READ_UNSATISFIED 0
#define KVM_TRACE_MMIO_READ 1
#define KVM_TRACE_MMIO_WRITE 2
static bool mmio_event_begin(struct perf_evsel *evsel,
struct perf_sample *sample, struct event_key *key)
{
/* MMIO read begin event in kernel. */
if (kvm_exit_event(evsel))
return true;
/* MMIO write begin event in kernel. */
if (!strcmp(evsel->name, "kvm:kvm_mmio") &&
perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_WRITE) {
mmio_event_get_key(evsel, sample, key);
return true;
}
return false;
}
static bool mmio_event_end(struct perf_evsel *evsel, struct perf_sample *sample,
struct event_key *key)
{
/* MMIO write end event in kernel. */
if (kvm_entry_event(evsel))
return true;
/* MMIO read end event in kernel.*/
if (!strcmp(evsel->name, "kvm:kvm_mmio") &&
perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_READ) {
mmio_event_get_key(evsel, sample, key);
return true;
}
return false;
}
static void mmio_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused,
struct event_key *key,
char *decode)
{
scnprintf(decode, DECODE_STR_LEN, "%#lx:%s",
(unsigned long)key->key,
key->info == KVM_TRACE_MMIO_WRITE ? "W" : "R");
}
static struct kvm_events_ops mmio_events = {
.is_begin_event = mmio_event_begin,
.is_end_event = mmio_event_end,
.decode_key = mmio_event_decode_key,
.name = "MMIO Access"
};
/* The time of emulation pio access is from kvm_pio to kvm_entry. */
static void ioport_event_get_key(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
{
key->key = perf_evsel__intval(evsel, sample, "port");
key->info = perf_evsel__intval(evsel, sample, "rw");
}
static bool ioport_event_begin(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
{
if (!strcmp(evsel->name, "kvm:kvm_pio")) {
ioport_event_get_key(evsel, sample, key);
return true;
}
return false;
}
static bool ioport_event_end(struct perf_evsel *evsel,
struct perf_sample *sample __maybe_unused,
struct event_key *key __maybe_unused)
{
return kvm_entry_event(evsel);
}
static void ioport_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused,
struct event_key *key,
char *decode)
{
scnprintf(decode, DECODE_STR_LEN, "%#llx:%s",
(unsigned long long)key->key,
key->info ? "POUT" : "PIN");
}
static struct kvm_events_ops ioport_events = {
.is_begin_event = ioport_event_begin,
.is_end_event = ioport_event_end,
.decode_key = ioport_event_decode_key,
.name = "IO Port Access"
};
const char * const kvm_events_tp[] = {
"kvm:kvm_entry",
"kvm:kvm_exit",
"kvm:kvm_mmio",
"kvm:kvm_pio",
NULL,
};
struct kvm_reg_events_ops kvm_reg_events_ops[] = {
{ .name = "vmexit", .ops = &exit_events },
{ .name = "mmio", .ops = &mmio_events },
{ .name = "ioport", .ops = &ioport_events },
{ NULL, NULL },
};
const char * const kvm_skip_events[] = {
"HLT",
NULL,
};
int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid)
{
if (strstr(cpuid, "Intel")) {
kvm->exit_reasons = vmx_exit_reasons;
kvm->exit_reasons_isa = "VMX";
} else if (strstr(cpuid, "AMD")) {
kvm->exit_reasons = svm_exit_reasons;
kvm->exit_reasons_isa = "SVM";
} else
return -ENOTSUP;
return 0;
}

22
tools/perf/arch/x86/util/tsc.c
View File

@ -6,29 +6,9 @@
#include "../../perf.h"
#include <linux/types.h>
#include "../../util/debug.h"
#include "../../util/tsc.h"
#include "tsc.h"
u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc)
{
u64 t, quot, rem;
t = ns - tc->time_zero;
quot = t / tc->time_mult;
rem = t % tc->time_mult;
return (quot << tc->time_shift) +
(rem << tc->time_shift) / tc->time_mult;
}
u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc)
{
u64 quot, rem;
quot = cyc >> tc->time_shift;
rem = cyc & ((1 << tc->time_shift) - 1);
return tc->time_zero + quot * tc->time_mult +
((rem * tc->time_mult) >> tc->time_shift);
}
int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc,
struct perf_tsc_conversion *tc)
{

3
tools/perf/arch/x86/util/tsc.h
View File

@ -14,7 +14,4 @@ struct perf_event_mmap_page;
int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc,
struct perf_tsc_conversion *tc);
u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc);
u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc);
#endif /* TOOLS_PERF_ARCH_X86_UTIL_TSC_H__ */

1
tools/perf/arch/x86/util/unwind-libunwind.c
View File

@ -3,6 +3,7 @@
#include <libunwind.h>
#include "perf_regs.h"
#include "../../util/unwind.h"
#include "../../util/debug.h"
#ifdef HAVE_ARCH_X86_64_SUPPORT
int libunwind__arch_reg_id(int regnum)

8
tools/perf/builtin-buildid-cache.c
View File

@ -125,7 +125,8 @@ static int build_id_cache__kcore_existing(const char *from_dir, char *to_dir,
return ret;
}
static int build_id_cache__add_kcore(const char *filename, const char *debugdir)
static int build_id_cache__add_kcore(const char *filename, const char *debugdir,
bool force)
{
char dir[32], sbuildid[BUILD_ID_SIZE * 2 + 1];
char from_dir[PATH_MAX], to_dir[PATH_MAX];
@ -144,7 +145,8 @@ static int build_id_cache__add_kcore(const char *filename, const char *debugdir)
scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s",
debugdir, sbuildid);
if (!build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
if (!force &&
!build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
pr_debug("same kcore found in %s\n", to_dir);
return 0;
}
@ -389,7 +391,7 @@ int cmd_buildid_cache(int argc, const char **argv,
}
if (kcore_filename &&
build_id_cache__add_kcore(kcore_filename, debugdir))
build_id_cache__add_kcore(kcore_filename, debugdir, force))
pr_warning("Couldn't add %s\n", kcore_filename);
return ret;

1
tools/perf/builtin-evlist.c
View File

@ -15,6 +15,7 @@
#include "util/parse-options.h"
#include "util/session.h"
#include "util/data.h"
#include "util/debug.h"
static int __cmd_evlist(const char *file_name, struct perf_attr_details *details)
{

1
tools/perf/builtin-help.c
View File

@ -11,6 +11,7 @@
#include "util/parse-options.h"
#include "util/run-command.h"
#include "util/help.h"
#include "util/debug.h"
static struct man_viewer_list {
struct man_viewer_list *next;

3
tools/perf/builtin-inject.c
View File

@ -389,6 +389,9 @@ static int __cmd_inject(struct perf_inject *inject)
ret = perf_session__process_events(session, &inject->tool);
if (!file_out->is_pipe) {
if (inject->build_ids)
perf_header__set_feat(&session->header,
HEADER_BUILD_ID);
session->header.data_size = inject->bytes_written;
perf_session__write_header(session, session->evlist, file_out->fd, true);
}

384
tools/perf/builtin-kvm.c
View File

@ -30,112 +30,24 @@
#include <math.h>
#ifdef HAVE_KVM_STAT_SUPPORT
#include <asm/svm.h>
#include <asm/vmx.h>
#include <asm/kvm.h>
#include <asm/kvm_perf.h>
#include "util/kvm-stat.h"
struct event_key {
#define INVALID_KEY (~0ULL)
u64 key;
int info;
};
struct kvm_event_stats {
u64 time;
struct stats stats;
};
struct kvm_event {
struct list_head hash_entry;
struct rb_node rb;
struct event_key key;
struct kvm_event_stats total;
#define DEFAULT_VCPU_NUM 8
int max_vcpu;
struct kvm_event_stats *vcpu;
};
typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int);
struct kvm_event_key {
const char *name;
key_cmp_fun key;
};
struct perf_kvm_stat;
struct kvm_events_ops {
bool (*is_begin_event)(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key);
bool (*is_end_event)(struct perf_evsel *evsel,
struct perf_sample *sample, struct event_key *key);
void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key,
char decode[20]);
const char *name;
};
struct exit_reasons_table {
unsigned long exit_code;
const char *reason;
};
#define EVENTS_BITS 12
#define EVENTS_CACHE_SIZE (1UL << EVENTS_BITS)
struct perf_kvm_stat {
struct perf_tool tool;
struct record_opts opts;
struct perf_evlist *evlist;
struct perf_session *session;
const char *file_name;
const char *report_event;
const char *sort_key;
int trace_vcpu;
struct exit_reasons_table *exit_reasons;
const char *exit_reasons_isa;
struct kvm_events_ops *events_ops;
key_cmp_fun compare;
struct list_head kvm_events_cache[EVENTS_CACHE_SIZE];
u64 total_time;
u64 total_count;
u64 lost_events;
u64 duration;
const char *pid_str;
struct intlist *pid_list;
struct rb_root result;
int timerfd;
unsigned int display_time;
bool live;
};
static void exit_event_get_key(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
void exit_event_get_key(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
{
key->info = 0;
key->key = perf_evsel__intval(evsel, sample, "exit_reason");
key->key = perf_evsel__intval(evsel, sample, KVM_EXIT_REASON);
}
static bool kvm_exit_event(struct perf_evsel *evsel)
bool kvm_exit_event(struct perf_evsel *evsel)
{
return !strcmp(evsel->name, "kvm:kvm_exit");
return !strcmp(evsel->name, KVM_EXIT_TRACE);
}
static bool exit_event_begin(struct perf_evsel *evsel,
struct perf_sample *sample, struct event_key *key)
bool exit_event_begin(struct perf_evsel *evsel,
struct perf_sample *sample, struct event_key *key)
{
if (kvm_exit_event(evsel)) {
exit_event_get_key(evsel, sample, key);
@ -145,26 +57,18 @@ static bool exit_event_begin(struct perf_evsel *evsel,
return false;
}
static bool kvm_entry_event(struct perf_evsel *evsel)
bool kvm_entry_event(struct perf_evsel *evsel)
{
return !strcmp(evsel->name, "kvm:kvm_entry");
return !strcmp(evsel->name, KVM_ENTRY_TRACE);
}
static bool exit_event_end(struct perf_evsel *evsel,
struct perf_sample *sample __maybe_unused,
struct event_key *key __maybe_unused)
bool exit_event_end(struct perf_evsel *evsel,
struct perf_sample *sample __maybe_unused,
struct event_key *key __maybe_unused)
{
return kvm_entry_event(evsel);
}
#define define_exit_reasons_table(name, symbols) \
static struct exit_reasons_table name[] = { \
symbols, { -1, NULL } \
}
define_exit_reasons_table(vmx_exit_reasons, VMX_EXIT_REASONS);
define_exit_reasons_table(svm_exit_reasons, SVM_EXIT_REASONS);
static const char *get_exit_reason(struct perf_kvm_stat *kvm,
struct exit_reasons_table *tbl,
u64 exit_code)
@ -180,147 +84,28 @@ static const char *get_exit_reason(struct perf_kvm_stat *kvm,
return "UNKNOWN";
}
static void exit_event_decode_key(struct perf_kvm_stat *kvm,
struct event_key *key,
char decode[20])
void exit_event_decode_key(struct perf_kvm_stat *kvm,
struct event_key *key,
char *decode)
{
const char *exit_reason = get_exit_reason(kvm, kvm->exit_reasons,
const char *exit_reason = get_exit_reason(kvm, key->exit_reasons,
key->key);
scnprintf(decode, 20, "%s", exit_reason);
scnprintf(decode, DECODE_STR_LEN, "%s", exit_reason);
}
static struct kvm_events_ops exit_events = {
.is_begin_event = exit_event_begin,
.is_end_event = exit_event_end,
.decode_key = exit_event_decode_key,
.name = "VM-EXIT"
};
/*
* For the mmio events, we treat:
* the time of MMIO write: kvm_mmio(KVM_TRACE_MMIO_WRITE...) -> kvm_entry
* the time of MMIO read: kvm_exit -> kvm_mmio(KVM_TRACE_MMIO_READ...).
*/
static void mmio_event_get_key(struct perf_evsel *evsel, struct perf_sample *sample,
struct event_key *key)
{
key->key = perf_evsel__intval(evsel, sample, "gpa");
key->info = perf_evsel__intval(evsel, sample, "type");
}
#define KVM_TRACE_MMIO_READ_UNSATISFIED 0
#define KVM_TRACE_MMIO_READ 1
#define KVM_TRACE_MMIO_WRITE 2
static bool mmio_event_begin(struct perf_evsel *evsel,
struct perf_sample *sample, struct event_key *key)
{
/* MMIO read begin event in kernel. */
if (kvm_exit_event(evsel))
return true;
/* MMIO write begin event in kernel. */
if (!strcmp(evsel->name, "kvm:kvm_mmio") &&
perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_WRITE) {
mmio_event_get_key(evsel, sample, key);
return true;
}
return false;
}
static bool mmio_event_end(struct perf_evsel *evsel, struct perf_sample *sample,
struct event_key *key)
{
/* MMIO write end event in kernel. */
if (kvm_entry_event(evsel))
return true;
/* MMIO read end event in kernel.*/
if (!strcmp(evsel->name, "kvm:kvm_mmio") &&
perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_READ) {
mmio_event_get_key(evsel, sample, key);
return true;
}
return false;
}
static void mmio_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused,
struct event_key *key,
char decode[20])
{
scnprintf(decode, 20, "%#lx:%s", (unsigned long)key->key,
key->info == KVM_TRACE_MMIO_WRITE ? "W" : "R");
}
static struct kvm_events_ops mmio_events = {
.is_begin_event = mmio_event_begin,
.is_end_event = mmio_event_end,
.decode_key = mmio_event_decode_key,
.name = "MMIO Access"
};
/* The time of emulation pio access is from kvm_pio to kvm_entry. */
static void ioport_event_get_key(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
{
key->key = perf_evsel__intval(evsel, sample, "port");
key->info = perf_evsel__intval(evsel, sample, "rw");
}
static bool ioport_event_begin(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
{
if (!strcmp(evsel->name, "kvm:kvm_pio")) {
ioport_event_get_key(evsel, sample, key);
return true;
}
return false;
}
static bool ioport_event_end(struct perf_evsel *evsel,
struct perf_sample *sample __maybe_unused,
struct event_key *key __maybe_unused)
{
return kvm_entry_event(evsel);
}
static void ioport_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused,
struct event_key *key,
char decode[20])
{
scnprintf(decode, 20, "%#llx:%s", (unsigned long long)key->key,
key->info ? "POUT" : "PIN");
}
static struct kvm_events_ops ioport_events = {
.is_begin_event = ioport_event_begin,
.is_end_event = ioport_event_end,
.decode_key = ioport_event_decode_key,
.name = "IO Port Access"
};
static bool register_kvm_events_ops(struct perf_kvm_stat *kvm)
{
bool ret = true;
struct kvm_reg_events_ops *events_ops = kvm_reg_events_ops;
if (!strcmp(kvm->report_event, "vmexit"))
kvm->events_ops = &exit_events;
else if (!strcmp(kvm->report_event, "mmio"))
kvm->events_ops = &mmio_events;
else if (!strcmp(kvm->report_event, "ioport"))
kvm->events_ops = &ioport_events;
else {
pr_err("Unknown report event:%s\n", kvm->report_event);
ret = false;
for (events_ops = kvm_reg_events_ops; events_ops->name; events_ops++) {
if (!strcmp(events_ops->name, kvm->report_event)) {
kvm->events_ops = events_ops->ops;
return true;
}
}
return ret;
return false;
}
struct vcpu_event_record {
@ -476,6 +261,54 @@ static bool update_kvm_event(struct kvm_event *event, int vcpu_id,
return true;
}
static bool is_child_event(struct perf_kvm_stat *kvm,
struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key)
{
struct child_event_ops *child_ops;
child_ops = kvm->events_ops->child_ops;
if (!child_ops)
return false;
for (; child_ops->name; child_ops++) {
if (!strcmp(evsel->name, child_ops->name)) {
child_ops->get_key(evsel, sample, key);
return true;
}
}
return false;
}
static bool handle_child_event(struct perf_kvm_stat *kvm,
struct vcpu_event_record *vcpu_record,
struct event_key *key,
struct perf_sample *sample __maybe_unused)
{
struct kvm_event *event = NULL;
if (key->key != INVALID_KEY)
event = find_create_kvm_event(kvm, key);
vcpu_record->last_event = event;
return true;
}
static bool skip_event(const char *event)
{
const char * const *skip_events;
for (skip_events = kvm_skip_events; *skip_events; skip_events++)
if (!strcmp(event, *skip_events))
return true;
return false;
}
static bool handle_end_event(struct perf_kvm_stat *kvm,
struct vcpu_event_record *vcpu_record,
struct event_key *key,
@ -524,10 +357,10 @@ static bool handle_end_event(struct perf_kvm_stat *kvm,
time_diff = sample->time - time_begin;
if (kvm->duration && time_diff > kvm->duration) {
char decode[32];
char decode[DECODE_STR_LEN];
kvm->events_ops->decode_key(kvm, &event->key, decode);
if (strcmp(decode, "HLT")) {
if (!skip_event(decode)) {
pr_info("%" PRIu64 " VM %d, vcpu %d: %s event took %" PRIu64 "usec\n",
sample->time, sample->pid, vcpu_record->vcpu_id,
decode, time_diff/1000);
@ -552,7 +385,7 @@ struct vcpu_event_record *per_vcpu_record(struct thread *thread,
return NULL;
}
vcpu_record->vcpu_id = perf_evsel__intval(evsel, sample, "vcpu_id");
vcpu_record->vcpu_id = perf_evsel__intval(evsel, sample, VCPU_ID);
thread->priv = vcpu_record;
}
@ -565,7 +398,8 @@ static bool handle_kvm_event(struct perf_kvm_stat *kvm,
struct perf_sample *sample)
{
struct vcpu_event_record *vcpu_record;
struct event_key key = {.key = INVALID_KEY};
struct event_key key = { .key = INVALID_KEY,
.exit_reasons = kvm->exit_reasons };
vcpu_record = per_vcpu_record(thread, evsel, sample);
if (!vcpu_record)
@ -579,6 +413,9 @@ static bool handle_kvm_event(struct perf_kvm_stat *kvm,
if (kvm->events_ops->is_begin_event(evsel, sample, &key))
return handle_begin_event(kvm, vcpu_record, &key, sample->time);
if (is_child_event(kvm, evsel, sample, &key))
return handle_child_event(kvm, vcpu_record, &key, sample);
if (kvm->events_ops->is_end_event(evsel, sample, &key))
return handle_end_event(kvm, vcpu_record, &key, sample);
@ -739,7 +576,7 @@ static void show_timeofday(void)
static void print_result(struct perf_kvm_stat *kvm)
{
char decode[20];
char decode[DECODE_STR_LEN];
struct kvm_event *event;
int vcpu = kvm->trace_vcpu;
@ -750,7 +587,7 @@ static void print_result(struct perf_kvm_stat *kvm)
pr_info("\n\n");
print_vcpu_info(kvm);
pr_info("%20s ", kvm->events_ops->name);
pr_info("%*s ", DECODE_STR_LEN, kvm->events_ops->name);
pr_info("%10s ", "Samples");
pr_info("%9s ", "Samples%");
@ -769,7 +606,7 @@ static void print_result(struct perf_kvm_stat *kvm)
min = get_event_min(event, vcpu);
kvm->events_ops->decode_key(kvm, &event->key, decode);
pr_info("%20s ", decode);
pr_info("%*s ", DECODE_STR_LEN, decode);
pr_info("%10llu ", (unsigned long long)ecount);
pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100);
pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100);
@ -835,20 +672,6 @@ static int process_sample_event(struct perf_tool *tool,
return 0;
}
static int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid)
{
if (strstr(cpuid, "Intel")) {
kvm->exit_reasons = vmx_exit_reasons;
kvm->exit_reasons_isa = "VMX";
} else if (strstr(cpuid, "AMD")) {
kvm->exit_reasons = svm_exit_reasons;
kvm->exit_reasons_isa = "SVM";
} else
return -ENOTSUP;
return 0;
}
static int cpu_isa_config(struct perf_kvm_stat *kvm)
{
char buf[64], *cpuid;
@ -1307,13 +1130,6 @@ exit:
return ret;
}
static const char * const kvm_events_tp[] = {
"kvm:kvm_entry",
"kvm:kvm_exit",
"kvm:kvm_mmio",
"kvm:kvm_pio",
};
#define STRDUP_FAIL_EXIT(s) \
({ char *_p; \
_p = strdup(s); \
@ -1325,7 +1141,7 @@ static const char * const kvm_events_tp[] = {
static int
kvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv)
{
unsigned int rec_argc, i, j;
unsigned int rec_argc, i, j, events_tp_size;
const char **rec_argv;
const char * const record_args[] = {
"record",
@ -1333,9 +1149,14 @@ kvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv)
"-m", "1024",
"-c", "1",
};
const char * const *events_tp;
events_tp_size = 0;
for (events_tp = kvm_events_tp; *events_tp; events_tp++)
events_tp_size++;
rec_argc = ARRAY_SIZE(record_args) + argc + 2 +
2 * ARRAY_SIZE(kvm_events_tp);
2 * events_tp_size;
rec_argv = calloc(rec_argc + 1, sizeof(char *));
if (rec_argv == NULL)
@ -1344,7 +1165,7 @@ kvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv)
for (i = 0; i < ARRAY_SIZE(record_args); i++)
rec_argv[i] = STRDUP_FAIL_EXIT(record_args[i]);
for (j = 0; j < ARRAY_SIZE(kvm_events_tp); j++) {
for (j = 0; j < events_tp_size; j++) {
rec_argv[i++] = "-e";
rec_argv[i++] = STRDUP_FAIL_EXIT(kvm_events_tp[j]);
}
@ -1363,7 +1184,8 @@ kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv)
{
const struct option kvm_events_report_options[] = {
OPT_STRING(0, "event", &kvm->report_event, "report event",
"event for reporting: vmexit, mmio, ioport"),
"event for reporting: vmexit, "
"mmio (x86 only), ioport (x86 only)"),
OPT_INTEGER(0, "vcpu", &kvm->trace_vcpu,
"vcpu id to report"),
OPT_STRING('k', "key", &kvm->sort_key, "sort-key",
@ -1398,16 +1220,16 @@ static struct perf_evlist *kvm_live_event_list(void)
{
struct perf_evlist *evlist;
char *tp, *name, *sys;
unsigned int j;
int err = -1;
const char * const *events_tp;
evlist = perf_evlist__new();
if (evlist == NULL)
return NULL;
for (j = 0; j < ARRAY_SIZE(kvm_events_tp); j++) {
for (events_tp = kvm_events_tp; *events_tp; events_tp++) {
tp = strdup(kvm_events_tp[j]);
tp = strdup(*events_tp);
if (tp == NULL)
goto out;
@ -1416,7 +1238,7 @@ static struct perf_evlist *kvm_live_event_list(void)
name = strchr(tp, ':');
if (name == NULL) {
pr_err("Error parsing %s tracepoint: subsystem delimiter not found\n",
kvm_events_tp[j]);
*events_tp);
free(tp);
goto out;
}
@ -1424,7 +1246,7 @@ static struct perf_evlist *kvm_live_event_list(void)
name++;
if (perf_evlist__add_newtp(evlist, sys, name, NULL)) {
pr_err("Failed to add %s tracepoint to the list\n", kvm_events_tp[j]);
pr_err("Failed to add %s tracepoint to the list\n", *events_tp);
free(tp);
goto out;
}
@ -1469,7 +1291,9 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
"key for sorting: sample(sort by samples number)"
" time (sort by avg time)"),
OPT_U64(0, "duration", &kvm->duration,
"show events other than HALT that take longer than duration usecs"),
"show events other than"
" HLT (x86 only) or Wait state (s390 only)"
" that take longer than duration usecs"),
OPT_END()
};
const char * const live_usage[] = {

12
tools/perf/builtin-sched.c
View File

@ -935,8 +935,8 @@ static int latency_switch_event(struct perf_sched *sched,
return -1;
}
sched_out = machine__findnew_thread(machine, 0, prev_pid);
sched_in = machine__findnew_thread(machine, 0, next_pid);
sched_out = machine__findnew_thread(machine, -1, prev_pid);
sched_in = machine__findnew_thread(machine, -1, next_pid);
out_events = thread_atoms_search(&sched->atom_root, sched_out, &sched->cmp_pid);
if (!out_events) {
@ -979,7 +979,7 @@ static int latency_runtime_event(struct perf_sched *sched,
{
const u32 pid = perf_evsel__intval(evsel, sample, "pid");
const u64 runtime = perf_evsel__intval(evsel, sample, "runtime");
struct thread *thread = machine__findnew_thread(machine, 0, pid);
struct thread *thread = machine__findnew_thread(machine, -1, pid);
struct work_atoms *atoms = thread_atoms_search(&sched->atom_root, thread, &sched->cmp_pid);
u64 timestamp = sample->time;
int cpu = sample->cpu;
@ -1012,7 +1012,7 @@ static int latency_wakeup_event(struct perf_sched *sched,
struct thread *wakee;
u64 timestamp = sample->time;
wakee = machine__findnew_thread(machine, 0, pid);
wakee = machine__findnew_thread(machine, -1, pid);
atoms = thread_atoms_search(&sched->atom_root, wakee, &sched->cmp_pid);
if (!atoms) {
if (thread_atoms_insert(sched, wakee))
@ -1072,7 +1072,7 @@ static int latency_migrate_task_event(struct perf_sched *sched,
if (sched->profile_cpu == -1)
return 0;
migrant = machine__findnew_thread(machine, 0, pid);
migrant = machine__findnew_thread(machine, -1, pid);
atoms = thread_atoms_search(&sched->atom_root, migrant, &sched->cmp_pid);
if (!atoms) {
if (thread_atoms_insert(sched, migrant))
@ -1290,7 +1290,7 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel,
return -1;
}
sched_in = machine__findnew_thread(machine, 0, next_pid);
sched_in = machine__findnew_thread(machine, -1, next_pid);
sched->curr_thread[this_cpu] = sched_in;

1
tools/perf/builtin-timechart.c
View File

@ -37,6 +37,7 @@
#include "util/svghelper.h"
#include "util/tool.h"
#include "util/data.h"
#include "util/debug.h"
#define SUPPORT_OLD_POWER_EVENTS 1
#define PWR_EVENT_EXIT -1

6
tools/perf/config/Makefile
View File

@ -164,6 +164,7 @@ CORE_FEATURE_TESTS = \
backtrace \
dwarf \
fortify-source \
sync-compare-and-swap \
glibc \
gtk2 \
gtk2-infobar \
@ -199,6 +200,7 @@ LIB_FEATURE_TESTS = \
VF_FEATURE_TESTS = \
backtrace \
fortify-source \
sync-compare-and-swap \
gtk2-infobar \
libelf-getphdrnum \
libelf-mmap \
@ -272,6 +274,10 @@ CFLAGS += -I$(LIB_INCLUDE)
CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
ifeq ($(feature-sync-compare-and-swap), 1)
CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
endif
ifndef NO_BIONIC
$(call feature_check,bionic)
ifeq ($(feature-bionic), 1)

4
tools/perf/config/feature-checks/Makefile
View File

@ -5,6 +5,7 @@ FILES= \
test-bionic.bin \
test-dwarf.bin \
test-fortify-source.bin \
test-sync-compare-and-swap.bin \
test-glibc.bin \
test-gtk2.bin \
test-gtk2-infobar.bin \
@ -141,6 +142,9 @@ test-timerfd.bin:
test-libdw-dwarf-unwind.bin:
$(BUILD)
test-sync-compare-and-swap.bin:
$(BUILD) -Werror
-include *.d
###############################

5
tools/perf/config/feature-checks/test-all.c
View File

@ -89,6 +89,10 @@
# include "test-libdw-dwarf-unwind.c"
#undef main
#define main main_test_sync_compare_and_swap
# include "test-sync-compare-and-swap.c"
#undef main
int main(int argc, char *argv[])
{
main_test_libpython();
@ -111,6 +115,7 @@ int main(int argc, char *argv[])
main_test_timerfd();
main_test_stackprotector_all();
main_test_libdw_dwarf_unwind();
main_test_sync_compare_and_swap(argc, argv);
return 0;
}

14
tools/perf/config/feature-checks/test-sync-compare-and-swap.c Normal file
View File

@ -0,0 +1,14 @@
#include <stdint.h>
volatile uint64_t x;
int main(int argc, char *argv[])
{
uint64_t old, new = argc;
argv = argv;
do {
old = __sync_val_compare_and_swap(&x, 0, 0);
} while (!__sync_bool_compare_and_swap(&x, old, new));
return old == new;
}

13
tools/perf/perf.c
View File

@ -13,11 +13,12 @@
#include "util/quote.h"
#include "util/run-command.h"
#include "util/parse-events.h"
#include "util/debug.h"
#include <api/fs/debugfs.h>
#include <pthread.h>
const char perf_usage_string[] =
"perf [--version] [--help] COMMAND [ARGS]";
"perf [--version] [--debug variable[=VALUE]] [--help] COMMAND [ARGS]";
const char perf_more_info_string[] =
"See 'perf help COMMAND' for more information on a specific command.";
@ -212,6 +213,16 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
printf("%s ", p->cmd);
}
exit(0);
} else if (!strcmp(cmd, "--debug")) {
if (*argc < 2) {
fprintf(stderr, "No variable specified for --debug.\n");
usage(perf_usage_string);
}
if (perf_debug_option((*argv)[1]))
usage(perf_usage_string);
(*argv)++;
(*argc)--;
} else {
fprintf(stderr, "Unknown option: %s\n", cmd);
usage(perf_usage_string);

3
tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py
View File

@ -107,12 +107,13 @@ def taskState(state):
class EventHeaders:
def __init__(self, common_cpu, common_secs, common_nsecs,
common_pid, common_comm):
common_pid, common_comm, common_callchain):
self.cpu = common_cpu
self.secs = common_secs
self.nsecs = common_nsecs
self.pid = common_pid
self.comm = common_comm
self.callchain = common_callchain
def ts(self):
return (self.secs * (10 ** 9)) + self.nsecs

4
tools/perf/scripts/python/check-perf-trace.py
View File

@ -27,7 +27,7 @@ def trace_end():
def irq__softirq_entry(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
vec):
common_callchain, vec):
print_header(event_name, common_cpu, common_secs, common_nsecs,
common_pid, common_comm)
@ -38,7 +38,7 @@ def irq__softirq_entry(event_name, context, common_cpu,
def kmem__kmalloc(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
call_site, ptr, bytes_req, bytes_alloc,
common_callchain, call_site, ptr, bytes_req, bytes_alloc,
gfp_flags):
print_header(event_name, common_cpu, common_secs, common_nsecs,
common_pid, common_comm)

2
tools/perf/scripts/python/failed-syscalls-by-pid.py
View File

@ -39,7 +39,7 @@ def trace_end():
def raw_syscalls__sys_exit(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
id, ret):
common_callchain, id, ret):
if (for_comm and common_comm != for_comm) or \
(for_pid and common_pid != for_pid ):
return

4
tools/perf/scripts/python/futex-contention.py
View File

@ -21,7 +21,7 @@ thread_blocktime = {}
lock_waits = {} # long-lived stats on (tid,lock) blockage elapsed time
process_names = {} # long-lived pid-to-execname mapping
def syscalls__sys_enter_futex(event, ctxt, cpu, s, ns, tid, comm,
def syscalls__sys_enter_futex(event, ctxt, cpu, s, ns, tid, comm, callchain,
nr, uaddr, op, val, utime, uaddr2, val3):
cmd = op & FUTEX_CMD_MASK
if cmd != FUTEX_WAIT:
@ -31,7 +31,7 @@ def syscalls__sys_enter_futex(event, ctxt, cpu, s, ns, tid, comm,
thread_thislock[tid] = uaddr
thread_blocktime[tid] = nsecs(s, ns)
def syscalls__sys_exit_futex(event, ctxt, cpu, s, ns, tid, comm,
def syscalls__sys_exit_futex(event, ctxt, cpu, s, ns, tid, comm, callchain,
nr, ret):
if thread_blocktime.has_key(tid):
elapsed = nsecs(s, ns) - thread_blocktime[tid]

2
tools/perf/scripts/python/net_dropmonitor.py
View File

@ -66,7 +66,7 @@ def trace_end():
print_drop_table()
# called from perf, when it finds a correspoinding event
def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm,
def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm, callchain,
skbaddr, location, protocol):
slocation = str(location)
try:

26
tools/perf/scripts/python/netdev-times.py
View File

@ -224,75 +224,75 @@ def trace_end():
(len(rx_skb_list), of_count_rx_skb_list)
# called from perf, when it finds a correspoinding event
def irq__softirq_entry(name, context, cpu, sec, nsec, pid, comm, vec):
def irq__softirq_entry(name, context, cpu, sec, nsec, pid, comm, callchain, vec):
if symbol_str("irq__softirq_entry", "vec", vec) != "NET_RX":
return
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, vec)
all_event_list.append(event_info)
def irq__softirq_exit(name, context, cpu, sec, nsec, pid, comm, vec):
def irq__softirq_exit(name, context, cpu, sec, nsec, pid, comm, callchain, vec):
if symbol_str("irq__softirq_entry", "vec", vec) != "NET_RX":
return
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, vec)
all_event_list.append(event_info)
def irq__softirq_raise(name, context, cpu, sec, nsec, pid, comm, vec):
def irq__softirq_raise(name, context, cpu, sec, nsec, pid, comm, callchain, vec):
if symbol_str("irq__softirq_entry", "vec", vec) != "NET_RX":
return
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, vec)
all_event_list.append(event_info)
def irq__irq_handler_entry(name, context, cpu, sec, nsec, pid, comm,
irq, irq_name):
callchain, irq, irq_name):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
irq, irq_name)
all_event_list.append(event_info)
def irq__irq_handler_exit(name, context, cpu, sec, nsec, pid, comm, irq, ret):
def irq__irq_handler_exit(name, context, cpu, sec, nsec, pid, comm, callchain, irq, ret):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, irq, ret)
all_event_list.append(event_info)
def napi__napi_poll(name, context, cpu, sec, nsec, pid, comm, napi, dev_name):
def napi__napi_poll(name, context, cpu, sec, nsec, pid, comm, callchain, napi, dev_name):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
napi, dev_name)
all_event_list.append(event_info)
def net__netif_receive_skb(name, context, cpu, sec, nsec, pid, comm, skbaddr,
def net__netif_receive_skb(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr,
skblen, dev_name):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr, skblen, dev_name)
all_event_list.append(event_info)
def net__netif_rx(name, context, cpu, sec, nsec, pid, comm, skbaddr,
def net__netif_rx(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr,
skblen, dev_name):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr, skblen, dev_name)
all_event_list.append(event_info)
def net__net_dev_queue(name, context, cpu, sec, nsec, pid, comm,
def net__net_dev_queue(name, context, cpu, sec, nsec, pid, comm, callchain,
skbaddr, skblen, dev_name):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr, skblen, dev_name)
all_event_list.append(event_info)
def net__net_dev_xmit(name, context, cpu, sec, nsec, pid, comm,
def net__net_dev_xmit(name, context, cpu, sec, nsec, pid, comm, callchain,
skbaddr, skblen, rc, dev_name):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr, skblen, rc ,dev_name)
all_event_list.append(event_info)
def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm,
def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm, callchain,
skbaddr, protocol, location):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr, protocol, location)
all_event_list.append(event_info)
def skb__consume_skb(name, context, cpu, sec, nsec, pid, comm, skbaddr):
def skb__consume_skb(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr)
all_event_list.append(event_info)
def skb__skb_copy_datagram_iovec(name, context, cpu, sec, nsec, pid, comm,
def skb__skb_copy_datagram_iovec(name, context, cpu, sec, nsec, pid, comm, callchain,
skbaddr, skblen):
event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
skbaddr, skblen)

41
tools/perf/scripts/python/sched-migration.py
View File

@ -369,93 +369,92 @@ def trace_end():
def sched__sched_stat_runtime(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
comm, pid, runtime, vruntime):
common_callchain, comm, pid, runtime, vruntime):
pass
def sched__sched_stat_iowait(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
comm, pid, delay):
common_callchain, comm, pid, delay):
pass
def sched__sched_stat_sleep(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
comm, pid, delay):
common_callchain, comm, pid, delay):
pass
def sched__sched_stat_wait(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
comm, pid, delay):
common_callchain, comm, pid, delay):
pass
def sched__sched_process_fork(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
parent_comm, parent_pid, child_comm, child_pid):
common_callchain, parent_comm, parent_pid, child_comm, child_pid):
pass
def sched__sched_process_wait(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
comm, pid, prio):
common_callchain, comm, pid, prio):
pass
def sched__sched_process_exit(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
comm, pid, prio):
common_callchain, comm, pid, prio):
pass
def sched__sched_process_free(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
comm, pid, prio):
common_callchain, comm, pid, prio):
pass
def sched__sched_migrate_task(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
comm, pid, prio, orig_cpu,
common_callchain, comm, pid, prio, orig_cpu,
dest_cpu):
headers = EventHeaders(common_cpu, common_secs, common_nsecs,
common_pid, common_comm)
common_pid, common_comm, common_callchain)
parser.migrate(headers, pid, prio, orig_cpu, dest_cpu)
def sched__sched_switch(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
common_secs, common_nsecs, common_pid, common_comm, common_callchain,
prev_comm, prev_pid, prev_prio, prev_state,
next_comm, next_pid, next_prio):
headers = EventHeaders(common_cpu, common_secs, common_nsecs,
common_pid, common_comm)
common_pid, common_comm, common_callchain)
parser.sched_switch(headers, prev_comm, prev_pid, prev_prio, prev_state,
next_comm, next_pid, next_prio)
def sched__sched_wakeup_new(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
comm, pid, prio, success,
common_callchain, comm, pid, prio, success,
target_cpu):
headers = EventHeaders(common_cpu, common_secs, common_nsecs,
common_pid, common_comm)
common_pid, common_comm, common_callchain)
parser.wake_up(headers, comm, pid, success, target_cpu, 1)
def sched__sched_wakeup(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
comm, pid, prio, success,
common_callchain, comm, pid, prio, success,
target_cpu):
headers = EventHeaders(common_cpu, common_secs, common_nsecs,
common_pid, common_comm)
common_pid, common_comm, common_callchain)
parser.wake_up(headers, comm, pid, success, target_cpu, 0)
def sched__sched_wait_task(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
comm, pid, prio):
common_callchain, comm, pid, prio):
pass
def sched__sched_kthread_stop_ret(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
ret):
common_callchain, ret):
pass
def sched__sched_kthread_stop(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
comm, pid):
common_callchain, comm, pid):
pass
def trace_unhandled(event_name, context, common_cpu, common_secs, common_nsecs,
common_pid, common_comm):
def trace_unhandled(event_name, context, event_fields_dict):
pass

2
tools/perf/scripts/python/sctop.py
View File

@ -44,7 +44,7 @@ def trace_begin():
def raw_syscalls__sys_enter(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
id, args):
common_callchain, id, args):
if for_comm is not None:
if common_comm != for_comm:
return

2
tools/perf/scripts/python/syscall-counts-by-pid.py
View File

@ -38,7 +38,7 @@ def trace_end():
def raw_syscalls__sys_enter(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
id, args):
common_callchain, id, args):
if (for_comm and common_comm != for_comm) or \
(for_pid and common_pid != for_pid ):

2
tools/perf/scripts/python/syscall-counts.py
View File

@ -35,7 +35,7 @@ def trace_end():
def raw_syscalls__sys_enter(event_name, context, common_cpu,
common_secs, common_nsecs, common_pid, common_comm,
id, args):
common_callchain, id, args):
if for_comm is not None:
if common_comm != for_comm:
return

1
tools/perf/tests/dso-data.c
View File

@ -10,6 +10,7 @@
#include "machine.h"
#include "symbol.h"
#include "tests.h"
#include "debug.h"
static char *test_file(int size)
{

1
tools/perf/tests/evsel-roundtrip-name.c
View File

@ -2,6 +2,7 @@
#include "evsel.h"
#include "parse-events.h"
#include "tests.h"
#include "debug.h"
static int perf_evsel__roundtrip_cache_name_test(void)
{

1
tools/perf/tests/evsel-tp-sched.c
View File

@ -1,6 +1,7 @@
#include <traceevent/event-parse.h>
#include "evsel.h"
#include "tests.h"
#include "debug.h"
static int perf_evsel__test_field(struct perf_evsel *evsel, const char *name,
int size, bool should_be_signed)

1
tools/perf/tests/open-syscall-tp-fields.c
View File

@ -3,6 +3,7 @@
#include "evsel.h"
#include "thread_map.h"
#include "tests.h"
#include "debug.h"
int test__syscall_open_tp_fields(void)
{

1
tools/perf/tests/parse-events.c
View File

@ -5,6 +5,7 @@
#include <api/fs/fs.h>
#include <api/fs/debugfs.h>
#include "tests.h"
#include "debug.h"
#include <linux/hw_breakpoint.h>
#define PERF_TP_SAMPLE_TYPE (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | \

1
tools/perf/tests/parse-no-sample-id-all.c
View File

@ -7,6 +7,7 @@
#include "evlist.h"
#include "header.h"
#include "util.h"
#include "debug.h"
static int process_event(struct perf_evlist **pevlist, union perf_event *event)
{

3
tools/perf/tests/perf-time-to-tsc.c
View File

@ -8,10 +8,9 @@
#include "evsel.h"
#include "thread_map.h"
#include "cpumap.h"
#include "tsc.h"
#include "tests.h"
#include "../arch/x86/util/tsc.h"
#define CHECK__(x) { \
while ((x) < 0) { \
pr_debug(#x " failed!\n"); \

1
tools/perf/tests/sample-parsing.c
View File

@ -4,6 +4,7 @@
#include "util.h"
#include "event.h"
#include "evsel.h"
#include "debug.h"
#include "tests.h"

1
tools/perf/tests/thread-mg-share.c
View File

@ -2,6 +2,7 @@
#include "machine.h"
#include "thread.h"
#include "map.h"
#include "debug.h"
int test__thread_mg_share(void)
{

2
tools/perf/ui/stdio/hist.c
View File

@ -479,7 +479,7 @@ print_entries:
if (h->ms.map == NULL && verbose > 1) {
__map_groups__fprintf_maps(h->thread->mg,
MAP__FUNCTION, verbose, fp);
MAP__FUNCTION, fp);
fprintf(fp, "%.10s end\n", graph_dotted_line);
}
}

2
tools/perf/util/callchain.c
View File

@ -626,7 +626,7 @@ int sample__resolve_callchain(struct perf_sample *sample, struct symbol **parent
int hist_entry__append_callchain(struct hist_entry *he, struct perf_sample *sample)
{
if (!symbol_conf.use_callchain)
if (!symbol_conf.use_callchain || sample->callchain == NULL)
return 0;
return callchain_append(he->callchain, &callchain_cursor, sample->period);
}

1
tools/perf/util/data.c
View File

@ -7,6 +7,7 @@
#include "data.h"
#include "util.h"
#include "debug.h"
static bool check_pipe(struct perf_data_file *file)
{

56
tools/perf/util/debug.c
View File

@ -16,11 +16,11 @@
int verbose;
bool dump_trace = false, quiet = false;
static int _eprintf(int level, const char *fmt, va_list args)
static int _eprintf(int level, int var, const char *fmt, va_list args)
{
int ret = 0;
if (verbose >= level) {
if (var >= level) {
if (use_browser >= 1)
ui_helpline__vshow(fmt, args);
else
@ -30,13 +30,13 @@ static int _eprintf(int level, const char *fmt, va_list args)
return ret;
}
int eprintf(int level, const char *fmt, ...)
int eprintf(int level, int var, const char *fmt, ...)
{
va_list args;
int ret;
va_start(args, fmt);
ret = _eprintf(level, fmt, args);
ret = _eprintf(level, var, fmt, args);
va_end(args);
return ret;
@ -51,9 +51,9 @@ void pr_stat(const char *fmt, ...)
va_list args;
va_start(args, fmt);
_eprintf(1, fmt, args);
_eprintf(1, verbose, fmt, args);
va_end(args);
eprintf(1, "\n");
eprintf(1, verbose, "\n");
}
int dump_printf(const char *fmt, ...)
@ -105,3 +105,47 @@ void trace_event(union perf_event *event)
}
printf(".\n");
}
static struct debug_variable {
const char *name;
int *ptr;
} debug_variables[] = {
{ .name = "verbose", .ptr = &verbose },
{ .name = NULL, }
};
int perf_debug_option(const char *str)
{
struct debug_variable *var = &debug_variables[0];
char *vstr, *s = strdup(str);
int v = 1;
vstr = strchr(s, '=');
if (vstr)
*vstr++ = 0;
while (var->name) {
if (!strcmp(s, var->name))
break;
var++;
}
if (!var->name) {
pr_err("Unknown debug variable name '%s'\n", s);
free(s);
return -1;
}
if (vstr) {
v = atoi(vstr);
/*
* Allow only values in range (0, 10),
* otherwise set 0.
*/
v = (v < 0) || (v > 10) ? 0 : v;
}
*var->ptr = v;
free(s);
return 0;
}

22
tools/perf/util/debug.h
View File

@ -11,6 +11,24 @@
extern int verbose;
extern bool quiet, dump_trace;
#ifndef pr_fmt
#define pr_fmt(fmt) fmt
#endif
#define pr_err(fmt, ...) \
eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_warning(fmt, ...) \
eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_info(fmt, ...) \
eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debug(fmt, ...) \
eprintf(1, verbose, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debugN(n, fmt, ...) \
eprintf(n, verbose, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debug2(fmt, ...) pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debug3(fmt, ...) pr_debugN(3, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debug4(fmt, ...) pr_debugN(4, pr_fmt(fmt), ##__VA_ARGS__)
int dump_printf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
void trace_event(union perf_event *event);
@ -19,4 +37,8 @@ int ui__warning(const char *format, ...) __attribute__((format(printf, 1, 2)));
void pr_stat(const char *fmt, ...);
int eprintf(int level, int var, const char *fmt, ...) __attribute__((format(printf, 3, 4)));
int perf_debug_option(const char *str);
#endif /* __PERF_DEBUG_H */

1
tools/perf/util/dso.c
View File

@ -703,6 +703,7 @@ struct dso *dso__new(const char *name)
dso->data.fd = -1;
dso->symtab_type = DSO_BINARY_TYPE__NOT_FOUND;
dso->binary_type = DSO_BINARY_TYPE__NOT_FOUND;
dso->is_64_bit = (sizeof(void *) == 8);
dso->loaded = 0;
dso->rel = 0;
dso->sorted_by_name = 0;

1
tools/perf/util/dso.h
View File

@ -90,6 +90,7 @@ struct dso {
u8 annotate_warned:1;
u8 short_name_allocated:1;
u8 long_name_allocated:1;
u8 is_64_bit:1;
u8 sorted_by_name;
u8 loaded;
u8 rel;

10
tools/perf/util/event.c
View File

@ -603,7 +603,14 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
{
return fprintf(fp, ": %s:%d\n", event->comm.comm, event->comm.tid);
const char *s;
if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC)
s = " exec";
else
s = "";
return fprintf(fp, "%s: %s:%d\n", s, event->comm.comm, event->comm.tid);
}
int perf_event__process_comm(struct perf_tool *tool __maybe_unused,
@ -781,6 +788,7 @@ try_again:
cpumode == PERF_RECORD_MISC_USER &&
machine && mg != &machine->kmaps) {
mg = &machine->kmaps;
load_map = true;
goto try_again;
}
} else {

46
tools/perf/util/evlist.c
View File

@ -606,12 +606,17 @@ static int perf_evlist__alloc_mmap(struct perf_evlist *evlist)
return evlist->mmap != NULL ? 0 : -ENOMEM;
}
static int __perf_evlist__mmap(struct perf_evlist *evlist,
int idx, int prot, int mask, int fd)
struct mmap_params {
int prot;
int mask;
};
static int __perf_evlist__mmap(struct perf_evlist *evlist, int idx,
struct mmap_params *mp, int fd)
{
evlist->mmap[idx].prev = 0;
evlist->mmap[idx].mask = mask;
evlist->mmap[idx].base = mmap(NULL, evlist->mmap_len, prot,
evlist->mmap[idx].mask = mp->mask;
evlist->mmap[idx].base = mmap(NULL, evlist->mmap_len, mp->prot,
MAP_SHARED, fd, 0);
if (evlist->mmap[idx].base == MAP_FAILED) {
pr_debug2("failed to mmap perf event ring buffer, error %d\n",
@ -625,8 +630,8 @@ static int __perf_evlist__mmap(struct perf_evlist *evlist,
}
static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx,
int prot, int mask, int cpu, int thread,
int *output)
struct mmap_params *mp, int cpu,
int thread, int *output)
{
struct perf_evsel *evsel;
@ -635,8 +640,7 @@ static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx,
if (*output == -1) {
*output = fd;
if (__perf_evlist__mmap(evlist, idx, prot, mask,
*output) < 0)
if (__perf_evlist__mmap(evlist, idx, mp, *output) < 0)
return -1;
} else {
if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, *output) != 0)
@ -651,8 +655,8 @@ static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx,
return 0;
}
static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot,
int mask)
static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist,
struct mmap_params *mp)
{
int cpu, thread;
int nr_cpus = cpu_map__nr(evlist->cpus);
@ -663,8 +667,8 @@ static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot,
int output = -1;
for (thread = 0; thread < nr_threads; thread++) {
if (perf_evlist__mmap_per_evsel(evlist, cpu, prot, mask,
cpu, thread, &output))
if (perf_evlist__mmap_per_evsel(evlist, cpu, mp, cpu,
thread, &output))
goto out_unmap;
}
}
@ -677,8 +681,8 @@ out_unmap:
return -1;
}
static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, int prot,
int mask)
static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist,
struct mmap_params *mp)
{
int thread;
int nr_threads = thread_map__nr(evlist->threads);
@ -687,8 +691,8 @@ static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, int prot,
for (thread = 0; thread < nr_threads; thread++) {
int output = -1;
if (perf_evlist__mmap_per_evsel(evlist, thread, prot, mask, 0,
thread, &output))
if (perf_evlist__mmap_per_evsel(evlist, thread, mp, 0, thread,
&output))
goto out_unmap;
}
@ -793,7 +797,9 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
struct perf_evsel *evsel;
const struct cpu_map *cpus = evlist->cpus;
const struct thread_map *threads = evlist->threads;
int prot = PROT_READ | (overwrite ? 0 : PROT_WRITE), mask;
struct mmap_params mp = {
.prot = PROT_READ | (overwrite ? 0 : PROT_WRITE),
};
if (evlist->mmap == NULL && perf_evlist__alloc_mmap(evlist) < 0)
return -ENOMEM;
@ -804,7 +810,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
evlist->overwrite = overwrite;
evlist->mmap_len = perf_evlist__mmap_size(pages);
pr_debug("mmap size %zuB\n", evlist->mmap_len);
mask = evlist->mmap_len - page_size - 1;
mp.mask = evlist->mmap_len - page_size - 1;
evlist__for_each(evlist, evsel) {
if ((evsel->attr.read_format & PERF_FORMAT_ID) &&
@ -814,9 +820,9 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
}
if (cpu_map__empty(cpus))
return perf_evlist__mmap_per_thread(evlist, prot, mask);
return perf_evlist__mmap_per_thread(evlist, &mp);
return perf_evlist__mmap_per_cpu(evlist, prot, mask);
return perf_evlist__mmap_per_cpu(evlist, &mp);
}
int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)

14
tools/perf/util/evsel.c
View File

@ -623,7 +623,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
attr->mmap_data = track;
}
if (opts->call_graph_enabled)
if (opts->call_graph_enabled && !evsel->no_aux_samples)
perf_evsel__config_callgraph(evsel, opts);
if (target__has_cpu(&opts->target))
@ -637,7 +637,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
target__has_cpu(&opts->target) || per_cpu))
perf_evsel__set_sample_bit(evsel, TIME);
if (opts->raw_samples) {
if (opts->raw_samples && !evsel->no_aux_samples) {
perf_evsel__set_sample_bit(evsel, TIME);
perf_evsel__set_sample_bit(evsel, RAW);
perf_evsel__set_sample_bit(evsel, CPU);
@ -650,7 +650,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
attr->watermark = 0;
attr->wakeup_events = 1;
}
if (opts->branch_stack) {
if (opts->branch_stack && !evsel->no_aux_samples) {
perf_evsel__set_sample_bit(evsel, BRANCH_STACK);
attr->branch_sample_type = opts->branch_stack;
}
@ -681,6 +681,11 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
if (target__none(&opts->target) && perf_evsel__is_group_leader(evsel) &&
!opts->initial_delay)
attr->enable_on_exec = 1;
if (evsel->immediate) {
attr->disabled = 0;
attr->enable_on_exec = 0;
}
}
int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
@ -960,6 +965,7 @@ static size_t perf_event_attr__fprintf(struct perf_event_attr *attr, FILE *fp)
ret += PRINT_ATTR2(exclude_user, exclude_kernel);
ret += PRINT_ATTR2(exclude_hv, exclude_idle);
ret += PRINT_ATTR2(mmap, comm);
ret += PRINT_ATTR2(mmap2, comm_exec);
ret += PRINT_ATTR2(freq, inherit_stat);
ret += PRINT_ATTR2(enable_on_exec, task);
ret += PRINT_ATTR2(watermark, precise_ip);
@ -967,7 +973,6 @@ static size_t perf_event_attr__fprintf(struct perf_event_attr *attr, FILE *fp)
ret += PRINT_ATTR2(exclude_host, exclude_guest);
ret += PRINT_ATTR2N("excl.callchain_kern", exclude_callchain_kernel,
"excl.callchain_user", exclude_callchain_user);
ret += PRINT_ATTR_U32(mmap2);
ret += PRINT_ATTR_U32(wakeup_events);
ret += PRINT_ATTR_U32(wakeup_watermark);
@ -1940,6 +1945,7 @@ int perf_evsel__fprintf(struct perf_evsel *evsel,
if_print(mmap);
if_print(mmap2);
if_print(comm);
if_print(comm_exec);
if_print(freq);
if_print(inherit_stat);
if_print(enable_on_exec);

2
tools/perf/util/evsel.h
View File

@ -83,6 +83,8 @@ struct perf_evsel {
int is_pos;
bool supported;
bool needs_swap;
bool no_aux_samples;
bool immediate;
/* parse modifier helper */
int exclude_GH;
int nr_members;

21
tools/perf/util/include/linux/kernel.h
View File

@ -94,27 +94,6 @@ static inline int scnprintf(char * buf, size_t size, const char * fmt, ...)
return (i >= ssize) ? (ssize - 1) : i;
}
int eprintf(int level,
const char *fmt, ...) __attribute__((format(printf, 2, 3)));
#ifndef pr_fmt
#define pr_fmt(fmt) fmt
#endif
#define pr_err(fmt, ...) \
eprintf(0, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_warning(fmt, ...) \
eprintf(0, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_info(fmt, ...) \
eprintf(0, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debug(fmt, ...) \
eprintf(1, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debugN(n, fmt, ...) \
eprintf(n, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debug2(fmt, ...) pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debug3(fmt, ...) pr_debugN(3, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_debug4(fmt, ...) pr_debugN(4, pr_fmt(fmt), ##__VA_ARGS__)
/*
* This looks more complex than it should be. But we need to
* get the type for the ~ right in round_down (it needs to be

140
tools/perf/util/kvm-stat.h Normal file
View File

@ -0,0 +1,140 @@
#ifndef __PERF_KVM_STAT_H
#define __PERF_KVM_STAT_H
#include "../perf.h"
#include "evsel.h"
#include "evlist.h"
#include "session.h"
#include "tool.h"
#include "stat.h"
struct event_key {
#define INVALID_KEY (~0ULL)
u64 key;
int info;
struct exit_reasons_table *exit_reasons;
};
struct kvm_event_stats {
u64 time;
struct stats stats;
};
struct kvm_event {
struct list_head hash_entry;
struct rb_node rb;
struct event_key key;
struct kvm_event_stats total;
#define DEFAULT_VCPU_NUM 8
int max_vcpu;
struct kvm_event_stats *vcpu;
};
typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int);
struct kvm_event_key {
const char *name;
key_cmp_fun key;
};
struct perf_kvm_stat;
struct child_event_ops {
void (*get_key)(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key);
const char *name;
};
struct kvm_events_ops {
bool (*is_begin_event)(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key);
bool (*is_end_event)(struct perf_evsel *evsel,
struct perf_sample *sample, struct event_key *key);
struct child_event_ops *child_ops;
void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key,
char *decode);
const char *name;
};
struct exit_reasons_table {
unsigned long exit_code;
const char *reason;
};
#define EVENTS_BITS 12
#define EVENTS_CACHE_SIZE (1UL << EVENTS_BITS)
struct perf_kvm_stat {
struct perf_tool tool;
struct record_opts opts;
struct perf_evlist *evlist;
struct perf_session *session;
const char *file_name;
const char *report_event;
const char *sort_key;
int trace_vcpu;
struct exit_reasons_table *exit_reasons;
const char *exit_reasons_isa;
struct kvm_events_ops *events_ops;
key_cmp_fun compare;
struct list_head kvm_events_cache[EVENTS_CACHE_SIZE];
u64 total_time;
u64 total_count;
u64 lost_events;
u64 duration;
const char *pid_str;
struct intlist *pid_list;
struct rb_root result;
int timerfd;
unsigned int display_time;
bool live;
};
struct kvm_reg_events_ops {
const char *name;
struct kvm_events_ops *ops;
};
void exit_event_get_key(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key);
bool exit_event_begin(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key);
bool exit_event_end(struct perf_evsel *evsel,
struct perf_sample *sample,
struct event_key *key);
void exit_event_decode_key(struct perf_kvm_stat *kvm,
struct event_key *key,
char *decode);
bool kvm_exit_event(struct perf_evsel *evsel);
bool kvm_entry_event(struct perf_evsel *evsel);
#define define_exit_reasons_table(name, symbols) \
static struct exit_reasons_table name[] = { \
symbols, { -1, NULL } \
}
/*
* arch specific callbacks and data structures
*/
int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid);
extern const char * const kvm_events_tp[];
extern struct kvm_reg_events_ops kvm_reg_events_ops[];
extern const char * const kvm_skip_events[];
#endif /* __PERF_KVM_STAT_H */

63
tools/perf/util/machine.c
View File

@ -34,7 +34,7 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
return -ENOMEM;
if (pid != HOST_KERNEL_ID) {
struct thread *thread = machine__findnew_thread(machine, 0,
struct thread *thread = machine__findnew_thread(machine, -1,
pid);
char comm[64];
@ -272,6 +272,52 @@ void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size)
return;
}
static void machine__update_thread_pid(struct machine *machine,
struct thread *th, pid_t pid)
{
struct thread *leader;
if (pid == th->pid_ || pid == -1 || th->pid_ != -1)
return;
th->pid_ = pid;
if (th->pid_ == th->tid)
return;
leader = machine__findnew_thread(machine, th->pid_, th->pid_);
if (!leader)
goto out_err;
if (!leader->mg)
leader->mg = map_groups__new();
if (!leader->mg)
goto out_err;
if (th->mg == leader->mg)
return;
if (th->mg) {
/*
* Maps are created from MMAP events which provide the pid and
* tid. Consequently there never should be any maps on a thread
* with an unknown pid. Just print an error if there are.
*/
if (!map_groups__empty(th->mg))
pr_err("Discarding thread maps for %d:%d\n",
th->pid_, th->tid);
map_groups__delete(th->mg);
}
th->mg = map_groups__get(leader->mg);
return;
out_err:
pr_err("Failed to join map groups for %d:%d\n", th->pid_, th->tid);
}
static struct thread *__machine__findnew_thread(struct machine *machine,
pid_t pid, pid_t tid,
bool create)
@ -285,10 +331,10 @@ static struct thread *__machine__findnew_thread(struct machine *machine,
* so most of the time we dont have to look up
* the full rbtree:
*/
if (machine->last_match && machine->last_match->tid == tid) {
if (pid && pid != machine->last_match->pid_)
machine->last_match->pid_ = pid;
return machine->last_match;
th = machine->last_match;
if (th && th->tid == tid) {
machine__update_thread_pid(machine, th, pid);
return th;
}
while (*p != NULL) {
@ -297,8 +343,7 @@ static struct thread *__machine__findnew_thread(struct machine *machine,
if (th->tid == tid) {
machine->last_match = th;
if (pid && pid != th->pid_)
th->pid_ = pid;
machine__update_thread_pid(machine, th, pid);
return th;
}
@ -325,8 +370,10 @@ static struct thread *__machine__findnew_thread(struct machine *machine,
* within thread__init_map_groups to find the thread
* leader and that would screwed the rb tree.
*/
if (thread__init_map_groups(th, machine))
if (thread__init_map_groups(th, machine)) {
thread__delete(th);
return NULL;
}
}
return th;

38
tools/perf/util/map.c
View File

@ -12,6 +12,7 @@
#include "vdso.h"
#include "build-id.h"
#include "util.h"
#include "debug.h"
#include <linux/string.h>
const char *map_type__name[MAP__NR_TYPES] = {
@ -454,6 +455,20 @@ void map_groups__exit(struct map_groups *mg)
}
}
bool map_groups__empty(struct map_groups *mg)
{
int i;
for (i = 0; i < MAP__NR_TYPES; ++i) {
if (maps__first(&mg->maps[i]))
return false;
if (!list_empty(&mg->removed_maps[i]))
return false;
}
return true;
}
struct map_groups *map_groups__new(void)
{
struct map_groups *mg = malloc(sizeof(*mg));
@ -554,8 +569,8 @@ int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter)
return ams->sym ? 0 : -1;
}
size_t __map_groups__fprintf_maps(struct map_groups *mg,
enum map_type type, int verbose, FILE *fp)
size_t __map_groups__fprintf_maps(struct map_groups *mg, enum map_type type,
FILE *fp)
{
size_t printed = fprintf(fp, "%s:\n", map_type__name[type]);
struct rb_node *nd;
@ -573,17 +588,16 @@ size_t __map_groups__fprintf_maps(struct map_groups *mg,
return printed;
}
size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp)
static size_t map_groups__fprintf_maps(struct map_groups *mg, FILE *fp)
{
size_t printed = 0, i;
for (i = 0; i < MAP__NR_TYPES; ++i)
printed += __map_groups__fprintf_maps(mg, i, verbose, fp);
printed += __map_groups__fprintf_maps(mg, i, fp);
return printed;
}
static size_t __map_groups__fprintf_removed_maps(struct map_groups *mg,
enum map_type type,
int verbose, FILE *fp)
enum map_type type, FILE *fp)
{
struct map *pos;
size_t printed = 0;
@ -600,23 +614,23 @@ static size_t __map_groups__fprintf_removed_maps(struct map_groups *mg,
}
static size_t map_groups__fprintf_removed_maps(struct map_groups *mg,
int verbose, FILE *fp)
FILE *fp)
{
size_t printed = 0, i;
for (i = 0; i < MAP__NR_TYPES; ++i)
printed += __map_groups__fprintf_removed_maps(mg, i, verbose, fp);
printed += __map_groups__fprintf_removed_maps(mg, i, fp);
return printed;
}
size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp)
size_t map_groups__fprintf(struct map_groups *mg, FILE *fp)
{
size_t printed = map_groups__fprintf_maps(mg, verbose, fp);
size_t printed = map_groups__fprintf_maps(mg, fp);
printed += fprintf(fp, "Removed maps:\n");
return printed + map_groups__fprintf_removed_maps(mg, verbose, fp);
return printed + map_groups__fprintf_removed_maps(mg, fp);
}
int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
int verbose, FILE *fp)
FILE *fp)
{
struct rb_root *root = &mg->maps[map->type];
struct rb_node *next = rb_first(root);

10
tools/perf/util/map.h
View File

@ -66,6 +66,7 @@ struct map_groups {
struct map_groups *map_groups__new(void);
void map_groups__delete(struct map_groups *mg);
bool map_groups__empty(struct map_groups *mg);
static inline struct map_groups *map_groups__get(struct map_groups *mg)
{
@ -141,8 +142,8 @@ void map__fixup_end(struct map *map);
void map__reloc_vmlinux(struct map *map);
size_t __map_groups__fprintf_maps(struct map_groups *mg,
enum map_type type, int verbose, FILE *fp);
size_t __map_groups__fprintf_maps(struct map_groups *mg, enum map_type type,
FILE *fp);
void maps__insert(struct rb_root *maps, struct map *map);
void maps__remove(struct rb_root *maps, struct map *map);
struct map *maps__find(struct rb_root *maps, u64 addr);
@ -152,8 +153,7 @@ void map_groups__init(struct map_groups *mg);
void map_groups__exit(struct map_groups *mg);
int map_groups__clone(struct map_groups *mg,
struct map_groups *parent, enum map_type type);
size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp);
size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp);
size_t map_groups__fprintf(struct map_groups *mg, FILE *fp);
int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name,
u64 addr);
@ -210,7 +210,7 @@ struct symbol *map_groups__find_function_by_name(struct map_groups *mg,
}
int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
int verbose, FILE *fp);
FILE *fp);
struct map *map_groups__find_by_name(struct map_groups *mg,
enum map_type type, const char *name);

5
tools/perf/util/parse-options.h
View File

@ -98,6 +98,7 @@ struct option {
parse_opt_cb *callback;
intptr_t defval;
bool *set;
void *data;
};
#define check_vtype(v, type) ( BUILD_BUG_ON_ZERO(!__builtin_types_compatible_p(typeof(v), type)) + v )
@ -131,6 +132,10 @@ struct option {
{ .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l),\
.value = (v), (a), .help = (h), .callback = (f), .defval = (intptr_t)d,\
.flags = PARSE_OPT_LASTARG_DEFAULT | PARSE_OPT_NOARG}
#define OPT_CALLBACK_OPTARG(s, l, v, d, a, h, f) \
{ .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), \
.value = (v), (a), .help = (h), .callback = (f), \
.flags = PARSE_OPT_OPTARG, .data = (d) }
/* parse_options() will filter out the processed options and leave the
* non-option argments in argv[].

1
tools/perf/util/probe-finder.c
View File

@ -26,7 +26,6 @@
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>

1
tools/perf/util/pstack.c
View File

@ -6,6 +6,7 @@
#include "util.h"
#include "pstack.h"
#include "debug.h"
#include <linux/kernel.h>
#include <stdlib.h>

4
tools/perf/util/python.c
View File

@ -14,12 +14,12 @@
*/
int verbose;
int eprintf(int level, const char *fmt, ...)
int eprintf(int level, int var, const char *fmt, ...)
{
va_list args;
int ret = 0;
if (verbose >= level) {
if (var >= level) {
va_start(args, fmt);
ret = vfprintf(stderr, fmt, args);
va_end(args);

18
tools/perf/util/record.c
View File

@ -69,15 +69,26 @@ static void perf_probe_sample_identifier(struct perf_evsel *evsel)
evsel->attr.sample_type |= PERF_SAMPLE_IDENTIFIER;
}
static void perf_probe_comm_exec(struct perf_evsel *evsel)
{
evsel->attr.comm_exec = 1;
}
bool perf_can_sample_identifier(void)
{
return perf_probe_api(perf_probe_sample_identifier);
}
static bool perf_can_comm_exec(void)
{
return perf_probe_api(perf_probe_comm_exec);
}
void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts)
{
struct perf_evsel *evsel;
bool use_sample_identifier = false;
bool use_comm_exec;
/*
* Set the evsel leader links before we configure attributes,
@ -89,8 +100,13 @@ void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts)
if (evlist->cpus->map[0] < 0)
opts->no_inherit = true;
evlist__for_each(evlist, evsel)
use_comm_exec = perf_can_comm_exec();
evlist__for_each(evlist, evsel) {
perf_evsel__config(evsel, opts);
if (!evsel->idx && use_comm_exec)
evsel->attr.comm_exec = 1;
}
if (evlist->nr_entries > 1) {
struct perf_evsel *first = perf_evlist__first(evlist);

1
tools/perf/util/scripting-engines/trace-event-perl.c
View File

@ -34,6 +34,7 @@
#include "../event.h"
#include "../trace-event.h"
#include "../evsel.h"
#include "../debug.h"
void boot_Perf__Trace__Context(pTHX_ CV *cv);
void boot_DynaLoader(pTHX_ CV *cv);

140
tools/perf/util/scripting-engines/trace-event-python.c
View File

@ -27,11 +27,13 @@
#include <errno.h>
#include "../../perf.h"
#include "../debug.h"
#include "../evsel.h"
#include "../util.h"
#include "../event.h"
#include "../thread.h"
#include "../trace-event.h"
#include "../machine.h"
PyMODINIT_FUNC initperf_trace_context(void);
@ -50,10 +52,14 @@ static int zero_flag_atom;
static PyObject *main_module, *main_dict;
static void handler_call_die(const char *handler_name) NORETURN;
static void handler_call_die(const char *handler_name)
{
PyErr_Print();
Py_FatalError("problem in Python trace event handler");
// Py_FatalError does not return
// but we have to make the compiler happy
abort();
}
/*
@ -97,6 +103,7 @@ static void define_value(enum print_arg_type field_type,
retval = PyObject_CallObject(handler, t);
if (retval == NULL)
handler_call_die(handler_name);
Py_DECREF(retval);
}
Py_DECREF(t);
@ -143,6 +150,7 @@ static void define_field(enum print_arg_type field_type,
retval = PyObject_CallObject(handler, t);
if (retval == NULL)
handler_call_die(handler_name);
Py_DECREF(retval);
}
Py_DECREF(t);
@ -272,12 +280,90 @@ static PyObject *get_field_numeric_entry(struct event_format *event,
return obj;
}
static PyObject *python_process_callchain(struct perf_sample *sample,
struct perf_evsel *evsel,
struct addr_location *al)
{
PyObject *pylist;
pylist = PyList_New(0);
if (!pylist)
Py_FatalError("couldn't create Python list");
if (!symbol_conf.use_callchain || !sample->callchain)
goto exit;
if (machine__resolve_callchain(al->machine, evsel, al->thread,
sample, NULL, NULL,
PERF_MAX_STACK_DEPTH) != 0) {
pr_err("Failed to resolve callchain. Skipping\n");
goto exit;
}
callchain_cursor_commit(&callchain_cursor);
while (1) {
PyObject *pyelem;
struct callchain_cursor_node *node;
node = callchain_cursor_current(&callchain_cursor);
if (!node)
break;
pyelem = PyDict_New();
if (!pyelem)
Py_FatalError("couldn't create Python dictionary");
pydict_set_item_string_decref(pyelem, "ip",
PyLong_FromUnsignedLongLong(node->ip));
if (node->sym) {
PyObject *pysym = PyDict_New();
if (!pysym)
Py_FatalError("couldn't create Python dictionary");
pydict_set_item_string_decref(pysym, "start",
PyLong_FromUnsignedLongLong(node->sym->start));
pydict_set_item_string_decref(pysym, "end",
PyLong_FromUnsignedLongLong(node->sym->end));
pydict_set_item_string_decref(pysym, "binding",
PyInt_FromLong(node->sym->binding));
pydict_set_item_string_decref(pysym, "name",
PyString_FromStringAndSize(node->sym->name,
node->sym->namelen));
pydict_set_item_string_decref(pyelem, "sym", pysym);
}
if (node->map) {
struct map *map = node->map;
const char *dsoname = "[unknown]";
if (map && map->dso && (map->dso->name || map->dso->long_name)) {
if (symbol_conf.show_kernel_path && map->dso->long_name)
dsoname = map->dso->long_name;
else if (map->dso->name)
dsoname = map->dso->name;
}
pydict_set_item_string_decref(pyelem, "dso",
PyString_FromString(dsoname));
}
callchain_cursor_advance(&callchain_cursor);
PyList_Append(pylist, pyelem);
Py_DECREF(pyelem);
}
exit:
return pylist;
}
static void python_process_tracepoint(struct perf_sample *sample,
struct perf_evsel *evsel,
struct thread *thread,
struct addr_location *al)
{
PyObject *handler, *retval, *context, *t, *obj, *dict = NULL;
PyObject *handler, *retval, *context, *t, *obj, *callchain;
PyObject *dict = NULL;
static char handler_name[256];
struct format_field *field;
unsigned long s, ns;
@ -320,18 +406,23 @@ static void python_process_tracepoint(struct perf_sample *sample,
PyTuple_SetItem(t, n++, PyString_FromString(handler_name));
PyTuple_SetItem(t, n++, context);
/* ip unwinding */
callchain = python_process_callchain(sample, evsel, al);
if (handler) {
PyTuple_SetItem(t, n++, PyInt_FromLong(cpu));
PyTuple_SetItem(t, n++, PyInt_FromLong(s));
PyTuple_SetItem(t, n++, PyInt_FromLong(ns));
PyTuple_SetItem(t, n++, PyInt_FromLong(pid));
PyTuple_SetItem(t, n++, PyString_FromString(comm));
PyTuple_SetItem(t, n++, callchain);
} else {
pydict_set_item_string_decref(dict, "common_cpu", PyInt_FromLong(cpu));
pydict_set_item_string_decref(dict, "common_s", PyInt_FromLong(s));
pydict_set_item_string_decref(dict, "common_ns", PyInt_FromLong(ns));
pydict_set_item_string_decref(dict, "common_pid", PyInt_FromLong(pid));
pydict_set_item_string_decref(dict, "common_comm", PyString_FromString(comm));
pydict_set_item_string_decref(dict, "common_callchain", callchain);
}
for (field = event->format.fields; field; field = field->next) {
if (field->flags & FIELD_IS_STRING) {
@ -351,6 +442,7 @@ static void python_process_tracepoint(struct perf_sample *sample,
pydict_set_item_string_decref(dict, field->name, obj);
}
if (!handler)
PyTuple_SetItem(t, n++, dict);
@ -361,6 +453,7 @@ static void python_process_tracepoint(struct perf_sample *sample,
retval = PyObject_CallObject(handler, t);
if (retval == NULL)
handler_call_die(handler_name);
Py_DECREF(retval);
} else {
handler = PyDict_GetItemString(main_dict, "trace_unhandled");
if (handler && PyCallable_Check(handler)) {
@ -368,6 +461,7 @@ static void python_process_tracepoint(struct perf_sample *sample,
retval = PyObject_CallObject(handler, t);
if (retval == NULL)
handler_call_die("trace_unhandled");
Py_DECREF(retval);
}
Py_DECREF(dict);
}
@ -380,7 +474,7 @@ static void python_process_general_event(struct perf_sample *sample,
struct thread *thread,
struct addr_location *al)
{
PyObject *handler, *retval, *t, *dict;
PyObject *handler, *retval, *t, *dict, *callchain, *dict_sample;
static char handler_name[64];
unsigned n = 0;
@ -396,6 +490,10 @@ static void python_process_general_event(struct perf_sample *sample,
if (!dict)
Py_FatalError("couldn't create Python dictionary");
dict_sample = PyDict_New();
if (!dict_sample)
Py_FatalError("couldn't create Python dictionary");
snprintf(handler_name, sizeof(handler_name), "%s", "process_event");
handler = PyDict_GetItemString(main_dict, handler_name);
@ -405,8 +503,21 @@ static void python_process_general_event(struct perf_sample *sample,
pydict_set_item_string_decref(dict, "ev_name", PyString_FromString(perf_evsel__name(evsel)));
pydict_set_item_string_decref(dict, "attr", PyString_FromStringAndSize(
(const char *)&evsel->attr, sizeof(evsel->attr)));
pydict_set_item_string_decref(dict, "sample", PyString_FromStringAndSize(
(const char *)sample, sizeof(*sample)));
pydict_set_item_string_decref(dict_sample, "pid",
PyInt_FromLong(sample->pid));
pydict_set_item_string_decref(dict_sample, "tid",
PyInt_FromLong(sample->tid));
pydict_set_item_string_decref(dict_sample, "cpu",
PyInt_FromLong(sample->cpu));
pydict_set_item_string_decref(dict_sample, "ip",
PyLong_FromUnsignedLongLong(sample->ip));
pydict_set_item_string_decref(dict_sample, "time",
PyLong_FromUnsignedLongLong(sample->time));
pydict_set_item_string_decref(dict_sample, "period",
PyLong_FromUnsignedLongLong(sample->period));
pydict_set_item_string_decref(dict, "sample", dict_sample);
pydict_set_item_string_decref(dict, "raw_buf", PyString_FromStringAndSize(
(const char *)sample->raw_data, sample->raw_size));
pydict_set_item_string_decref(dict, "comm",
@ -420,6 +531,10 @@ static void python_process_general_event(struct perf_sample *sample,
PyString_FromString(al->sym->name));
}
/* ip unwinding */
callchain = python_process_callchain(sample, evsel, al);
pydict_set_item_string_decref(dict, "callchain", callchain);
PyTuple_SetItem(t, n++, dict);
if (_PyTuple_Resize(&t, n) == -1)
Py_FatalError("error resizing Python tuple");
@ -427,6 +542,7 @@ static void python_process_general_event(struct perf_sample *sample,
retval = PyObject_CallObject(handler, t);
if (retval == NULL)
handler_call_die(handler_name);
Py_DECREF(retval);
exit:
Py_DECREF(dict);
Py_DECREF(t);
@ -548,8 +664,7 @@ static int python_stop_script(void)
retval = PyObject_CallObject(handler, NULL);
if (retval == NULL)
handler_call_die("trace_end");
else
Py_DECREF(retval);
Py_DECREF(retval);
out:
Py_XDECREF(main_dict);
Py_XDECREF(main_module);
@ -616,6 +731,7 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
fprintf(ofp, "common_nsecs, ");
fprintf(ofp, "common_pid, ");
fprintf(ofp, "common_comm,\n\t");
fprintf(ofp, "common_callchain, ");
not_first = 0;
count = 0;
@ -659,7 +775,7 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
fprintf(ofp, "%%u");
}
fprintf(ofp, "\\n\" %% \\\n\t\t(");
fprintf(ofp, "\" %% \\\n\t\t(");
not_first = 0;
count = 0;
@ -695,7 +811,15 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
fprintf(ofp, "%s", f->name);
}
fprintf(ofp, "),\n\n");
fprintf(ofp, ")\n\n");
fprintf(ofp, "\t\tfor node in common_callchain:");
fprintf(ofp, "\n\t\t\tif 'sym' in node:");
fprintf(ofp, "\n\t\t\t\tprint \"\\t[%%x] %%s\" %% (node['ip'], node['sym']['name'])");
fprintf(ofp, "\n\t\t\telse:");
fprintf(ofp, "\n\t\t\t\tprint \"\t[%%x]\" %% (node['ip'])\n\n");
fprintf(ofp, "\t\tprint \"\\n\"\n\n");
}
fprintf(ofp, "def trace_unhandled(event_name, context, "

14
tools/perf/util/session.c
View File

@ -1083,13 +1083,14 @@ void perf_event_header__bswap(struct perf_event_header *hdr)
struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
{
return machine__findnew_thread(&session->machines.host, 0, pid);
return machine__findnew_thread(&session->machines.host, -1, pid);
}
static struct thread *perf_session__register_idle_thread(struct perf_session *session)
{
struct thread *thread = perf_session__findnew(session, 0);
struct thread *thread;
thread = machine__findnew_thread(&session->machines.host, 0, 0);
if (thread == NULL || thread__set_comm(thread, "swapper", 0)) {
pr_err("problem inserting idle task.\n");
thread = NULL;
@ -1296,8 +1297,10 @@ int __perf_session__process_events(struct perf_session *session,
ui_progress__init(&prog, file_size, "Processing events...");
mmap_size = MMAP_SIZE;
if (mmap_size > file_size)
if (mmap_size > file_size) {
mmap_size = file_size;
session->one_mmap = true;
}
memset(mmaps, 0, sizeof(mmaps));
@ -1319,6 +1322,10 @@ remap:
mmaps[map_idx] = buf;
map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1);
file_pos = file_offset + head;
if (session->one_mmap) {
session->one_mmap_addr = buf;
session->one_mmap_offset = file_offset;
}
more:
event = fetch_mmaped_event(session, head, mmap_size, buf);
@ -1364,6 +1371,7 @@ out_err:
ui_progress__finish();
perf_session__warn_about_errors(session, tool);
perf_session_free_sample_buffers(session);
session->one_mmap = false;
return err;
}

3
tools/perf/util/session.h
View File

@ -36,6 +36,9 @@ struct perf_session {
struct trace_event tevent;
struct events_stats stats;
bool repipe;
bool one_mmap;
void *one_mmap_addr;
u64 one_mmap_offset;
struct ordered_samples ordered_samples;
struct perf_data_file *file;
};

6
tools/perf/util/symbol-elf.c
View File

@ -49,7 +49,8 @@ static inline uint8_t elf_sym__type(const GElf_Sym *sym)
static inline int elf_sym__is_function(const GElf_Sym *sym)
{
return elf_sym__type(sym) == STT_FUNC &&
return (elf_sym__type(sym) == STT_FUNC ||
elf_sym__type(sym) == STT_GNU_IFUNC) &&
sym->st_name != 0 &&
sym->st_shndx != SHN_UNDEF;
}
@ -598,6 +599,8 @@ int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
goto out_elf_end;
}
ss->is_64_bit = (gelf_getclass(elf) == ELFCLASS64);
ss->symtab = elf_section_by_name(elf, &ehdr, &ss->symshdr, ".symtab",
NULL);
if (ss->symshdr.sh_type != SHT_SYMTAB)
@ -698,6 +701,7 @@ int dso__load_sym(struct dso *dso, struct map *map,
bool remap_kernel = false, adjust_kernel_syms = false;
dso->symtab_type = syms_ss->type;
dso->is_64_bit = syms_ss->is_64_bit;
dso->rel = syms_ss->ehdr.e_type == ET_REL;
/*

22
tools/perf/util/symbol-minimal.c
View File

@ -288,6 +288,23 @@ int dso__synthesize_plt_symbols(struct dso *dso __maybe_unused,
return 0;
}
static int fd__is_64_bit(int fd)
{
u8 e_ident[EI_NIDENT];
if (lseek(fd, 0, SEEK_SET))
return -1;
if (readn(fd, e_ident, sizeof(e_ident)) != sizeof(e_ident))
return -1;
if (memcmp(e_ident, ELFMAG, SELFMAG) ||
e_ident[EI_VERSION] != EV_CURRENT)
return -1;
return e_ident[EI_CLASS] == ELFCLASS64;
}
int dso__load_sym(struct dso *dso, struct map *map __maybe_unused,
struct symsrc *ss,
struct symsrc *runtime_ss __maybe_unused,
@ -295,6 +312,11 @@ int dso__load_sym(struct dso *dso, struct map *map __maybe_unused,
int kmodule __maybe_unused)
{
unsigned char *build_id[BUILD_ID_SIZE];
int ret;
ret = fd__is_64_bit(ss->fd);
if (ret >= 0)
dso->is_64_bit = ret;
if (filename__read_build_id(ss->name, build_id, BUILD_ID_SIZE) > 0) {
dso__set_build_id(dso, build_id);

20
tools/perf/util/symbol.c
View File

@ -342,6 +342,16 @@ static struct symbol *symbols__first(struct rb_root *symbols)
return NULL;
}
static struct symbol *symbols__next(struct symbol *sym)
{
struct rb_node *n = rb_next(&sym->rb_node);
if (n)
return rb_entry(n, struct symbol, rb_node);
return NULL;
}
struct symbol_name_rb_node {
struct rb_node rb_node;
struct symbol sym;
@ -412,11 +422,16 @@ struct symbol *dso__find_symbol(struct dso *dso,
return symbols__find(&dso->symbols[type], addr);
}
static struct symbol *dso__first_symbol(struct dso *dso, enum map_type type)
struct symbol *dso__first_symbol(struct dso *dso, enum map_type type)
{
return symbols__first(&dso->symbols[type]);
}
struct symbol *dso__next_symbol(struct symbol *sym)
{
return symbols__next(sym);
}
struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
const char *name)
{
@ -1065,6 +1080,7 @@ static int dso__load_kcore(struct dso *dso, struct map *map,
&is_64_bit);
if (err)
goto out_err;
dso->is_64_bit = is_64_bit;
if (list_empty(&md.maps)) {
err = -EINVAL;
@ -1663,6 +1679,7 @@ do_kallsyms:
free(kallsyms_allocated_filename);
if (err > 0 && !dso__is_kcore(dso)) {
dso->binary_type = DSO_BINARY_TYPE__KALLSYMS;
dso__set_long_name(dso, "[kernel.kallsyms]", false);
map__fixup_start(map);
map__fixup_end(map);
@ -1710,6 +1727,7 @@ static int dso__load_guest_kernel_sym(struct dso *dso, struct map *map,
if (err > 0)
pr_debug("Using %s for symbols\n", kallsyms_filename);
if (err > 0 && !dso__is_kcore(dso)) {
dso->binary_type = DSO_BINARY_TYPE__GUEST_KALLSYMS;
machine__mmap_name(machine, path, sizeof(path));
dso__set_long_name(dso, strdup(path), true);
map__fixup_start(map);

4
tools/perf/util/symbol.h
View File

@ -216,6 +216,7 @@ struct symsrc {
GElf_Shdr dynshdr;
bool adjust_symbols;
bool is_64_bit;
#endif
};
@ -239,6 +240,9 @@ struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
const char *name);
struct symbol *dso__first_symbol(struct dso *dso, enum map_type type);
struct symbol *dso__next_symbol(struct symbol *sym);
int filename__read_build_id(const char *filename, void *bf, size_t size);
int sysfs__read_build_id(const char *filename, void *bf, size_t size);
int modules__parse(const char *filename, void *arg,

12
tools/perf/util/thread.c
View File

@ -13,7 +13,7 @@ int thread__init_map_groups(struct thread *thread, struct machine *machine)
struct thread *leader;
pid_t pid = thread->pid_;
if (pid == thread->tid) {
if (pid == thread->tid || pid == -1) {
thread->mg = map_groups__new();
} else {
leader = machine__findnew_thread(machine, pid, pid);
@ -60,8 +60,10 @@ void thread__delete(struct thread *thread)
{
struct comm *comm, *tmp;
map_groups__put(thread->mg);
thread->mg = NULL;
if (thread->mg) {
map_groups__put(thread->mg);
thread->mg = NULL;
}
list_for_each_entry_safe(comm, tmp, &thread->comm_list, list) {
list_del(&comm->list);
comm__free(comm);
@ -127,12 +129,12 @@ int thread__comm_len(struct thread *thread)
size_t thread__fprintf(struct thread *thread, FILE *fp)
{
return fprintf(fp, "Thread %d %s\n", thread->tid, thread__comm_str(thread)) +
map_groups__fprintf(thread->mg, verbose, fp);
map_groups__fprintf(thread->mg, fp);
}
void thread__insert_map(struct thread *thread, struct map *map)
{
map_groups__fixup_overlappings(thread->mg, map, verbose, stderr);
map_groups__fixup_overlappings(thread->mg, map, stderr);
map_groups__insert(thread->mg, map);
}

1
tools/perf/util/trace-event-info.c
View File

@ -40,6 +40,7 @@
#include "trace-event.h"
#include <api/fs/debugfs.h>
#include "evsel.h"
#include "debug.h"
#define VERSION "0.5"

2
tools/perf/util/trace-event-read.c
View File

@ -22,7 +22,6 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/stat.h>
@ -36,6 +35,7 @@
#include "../perf.h"
#include "util.h"
#include "trace-event.h"
#include "debug.h"
static int input_fd;

25
tools/perf/util/tsc.c Normal file
View File

@ -0,0 +1,25 @@
#include <linux/compiler.h>
#include <linux/types.h>
#include "tsc.h"
u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc)
{
u64 t, quot, rem;
t = ns - tc->time_zero;
quot = t / tc->time_mult;
rem = t % tc->time_mult;
return (quot << tc->time_shift) +
(rem << tc->time_shift) / tc->time_mult;
}
u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc)
{
u64 quot, rem;
quot = cyc >> tc->time_shift;
rem = cyc & ((1 << tc->time_shift) - 1);
return tc->time_zero + quot * tc->time_mult +
((rem * tc->time_mult) >> tc->time_shift);
}

11
tools/perf/util/tsc.h Normal file
View File

@ -0,0 +1,11 @@
#ifndef __PERF_TSC_H
#define __PERF_TSC_H
#include <linux/types.h>
#include "../arch/x86/util/tsc.h"
u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc);
u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc);
#endif

1
tools/perf/util/unwind-libdw.c
View File

@ -3,6 +3,7 @@
#include <elfutils/libdwfl.h>
#include <inttypes.h>
#include <errno.h>
#include "debug.h"
#include "unwind.h"
#include "unwind-libdw.h"
#include "machine.h"

1
tools/perf/util/unwind-libunwind.c
View File

@ -30,6 +30,7 @@
#include "unwind.h"
#include "symbol.h"
#include "util.h"
#include "debug.h"
extern int
UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,

1
tools/perf/util/util.c
View File

@ -1,5 +1,6 @@
#include "../perf.h"
#include "util.h"
#include "debug.h"
#include <api/fs/fs.h>
#include <sys/mman.h>
#ifdef HAVE_BACKTRACE_SUPPORT

1
tools/perf/util/vdso.c
View File

@ -12,6 +12,7 @@
#include "util.h"
#include "symbol.h"
#include "linux/string.h"
#include "debug.h"
static bool vdso_found;
static char vdso_file[] = "/tmp/perf-vdso.so-XXXXXX";