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authorAdrian Hunter <adrian.hunter@intel.com>2021-05-30 22:23:08 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-06-01 16:05:20 +0300
commita483e64c0b62e93a772cbc96f32bad885586fad7 (patch)
tree64fc67efedc2d7599c1072670760ac846b155ad2 /tools/perf/scripts
parent2b87386c7a1c0488bf2a27d7f4ac80aa84e22fb5 (diff)
downloadlinux-a483e64c0b62e93a772cbc96f32bad885586fad7.tar.xz
perf scripting python: intel-pt-events.py: Add --insn-trace and --src-trace
Add an instruction trace and a source trace to the intel-pt-events.py script. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/r/20210530192308.7382-14-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/scripts')
-rw-r--r--tools/perf/scripts/python/intel-pt-events.py176
1 files changed, 158 insertions, 18 deletions
diff --git a/tools/perf/scripts/python/intel-pt-events.py b/tools/perf/scripts/python/intel-pt-events.py
index fcfae1de731b..1d3a189a9a54 100644
--- a/tools/perf/scripts/python/intel-pt-events.py
+++ b/tools/perf/scripts/python/intel-pt-events.py
@@ -16,21 +16,30 @@ from __future__ import print_function
import os
import sys
import struct
+import argparse
+
+from libxed import LibXED
+from ctypes import create_string_buffer, addressof
sys.path.append(os.environ['PERF_EXEC_PATH'] + \
'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
-# These perf imports are not used at present
-#from perf_trace_context import *
-#from Core import *
+from perf_trace_context import perf_set_itrace_options, \
+ perf_sample_insn, perf_sample_srccode
try:
broken_pipe_exception = BrokenPipeError
except:
broken_pipe_exception = IOError
-glb_switch_str = None
-glb_switch_printed = True
+glb_switch_str = None
+glb_switch_printed = True
+glb_insn = False
+glb_disassembler = None
+glb_src = False
+glb_source_file_name = None
+glb_line_number = None
+glb_dso = None
def get_optional_null(perf_dict, field):
if field in perf_dict:
@@ -42,6 +51,11 @@ def get_optional_zero(perf_dict, field):
return perf_dict[field]
return 0
+def get_optional_bytes(perf_dict, field):
+ if field in perf_dict:
+ return perf_dict[field]
+ return bytes()
+
def get_optional(perf_dict, field):
if field in perf_dict:
return perf_dict[field]
@@ -53,7 +67,31 @@ def get_offset(perf_dict, field):
return ""
def trace_begin():
- print("Intel PT Branch Trace, Power Events and PTWRITE")
+ ap = argparse.ArgumentParser(usage = "", add_help = False)
+ ap.add_argument("--insn-trace", action='store_true')
+ ap.add_argument("--src-trace", action='store_true')
+ global glb_args
+ global glb_insn
+ global glb_src
+ glb_args = ap.parse_args()
+ if glb_args.insn_trace:
+ print("Intel PT Instruction Trace")
+ itrace = "i0nsepwx"
+ glb_insn = True
+ elif glb_args.src_trace:
+ print("Intel PT Source Trace")
+ itrace = "i0nsepwx"
+ glb_insn = True
+ glb_src = True
+ else:
+ print("Intel PT Branch Trace, Power Events and PTWRITE")
+ itrace = "bepwx"
+ global glb_disassembler
+ try:
+ glb_disassembler = LibXED()
+ except:
+ glb_disassembler = None
+ perf_set_itrace_options(perf_script_context, itrace)
def trace_end():
print("End")
@@ -111,11 +149,14 @@ def print_psb(raw_buf):
offset = data[1]
print("offset: %#x" % (offset), end=' ')
-def print_common_start(comm, sample, name):
+def common_start_str(comm, sample):
ts = sample["time"]
cpu = sample["cpu"]
pid = sample["pid"]
tid = sample["tid"]
+ return "%16s %5u/%-5u [%03u] %9u.%09u " % (comm, pid, tid, cpu, ts / 1000000000, ts %1000000000)
+
+def print_common_start(comm, sample, name):
flags_disp = get_optional_null(sample, "flags_disp")
# Unused fields:
# period = sample["period"]
@@ -123,22 +164,96 @@ def print_common_start(comm, sample, name):
# weight = sample["weight"]
# transaction = sample["transaction"]
# cpumode = get_optional_zero(sample, "cpumode")
- print("%16s %5u/%-5u [%03u] %9u.%09u %7s %19s" %
- (comm, pid, tid, cpu, ts / 1000000000, ts %1000000000, name, flags_disp),
- end=' ')
+ print(common_start_str(comm, sample) + "%7s %19s" % (name, flags_disp), end=' ')
+
+def print_instructions_start(comm, sample):
+ if "x" in get_optional_null(sample, "flags"):
+ print(common_start_str(comm, sample) + "x", end=' ')
+ else:
+ print(common_start_str(comm, sample), end=' ')
+
+def disassem(insn, ip):
+ inst = glb_disassembler.Instruction()
+ glb_disassembler.SetMode(inst, 0) # Assume 64-bit
+ buf = create_string_buffer(64)
+ buf.value = insn
+ return glb_disassembler.DisassembleOne(inst, addressof(buf), len(insn), ip)
def print_common_ip(param_dict, sample, symbol, dso):
ip = sample["ip"]
offs = get_offset(param_dict, "symoff")
- print("%16x %s%s (%s)" % (ip, symbol, offs, dso), end=' ')
+ if "cyc_cnt" in sample:
+ cyc_cnt = sample["cyc_cnt"]
+ insn_cnt = get_optional_zero(sample, "insn_cnt")
+ ipc_str = " IPC: %#.2f (%u/%u)" % (insn_cnt / cyc_cnt, insn_cnt, cyc_cnt)
+ else:
+ ipc_str = ""
+ if glb_insn and glb_disassembler is not None:
+ insn = perf_sample_insn(perf_script_context)
+ if insn and len(insn):
+ cnt, text = disassem(insn, ip)
+ byte_str = ("%x" % ip).rjust(16)
+ if sys.version_info.major >= 3:
+ for k in range(cnt):
+ byte_str += " %02x" % insn[k]
+ else:
+ for k in xrange(cnt):
+ byte_str += " %02x" % ord(insn[k])
+ print("%-40s %-30s" % (byte_str, text), end=' ')
+ print("%s%s (%s)" % (symbol, offs, dso), end=' ')
+ else:
+ print("%16x %s%s (%s)" % (ip, symbol, offs, dso), end=' ')
if "addr_correlates_sym" in sample:
addr = sample["addr"]
dso = get_optional(sample, "addr_dso")
symbol = get_optional(sample, "addr_symbol")
offs = get_offset(sample, "addr_symoff")
- print("=> %x %s%s (%s)" % (addr, symbol, offs, dso))
+ print("=> %x %s%s (%s)%s" % (addr, symbol, offs, dso, ipc_str))
+ else:
+ print(ipc_str)
+
+def print_srccode(comm, param_dict, sample, symbol, dso, with_insn):
+ ip = sample["ip"]
+ if symbol == "[unknown]":
+ start_str = common_start_str(comm, sample) + ("%x" % ip).rjust(16).ljust(40)
else:
- print()
+ offs = get_offset(param_dict, "symoff")
+ start_str = common_start_str(comm, sample) + (symbol + offs).ljust(40)
+
+ if with_insn and glb_insn and glb_disassembler is not None:
+ insn = perf_sample_insn(perf_script_context)
+ if insn and len(insn):
+ cnt, text = disassem(insn, ip)
+ start_str += text.ljust(30)
+
+ global glb_source_file_name
+ global glb_line_number
+ global glb_dso
+
+ source_file_name, line_number, source_line = perf_sample_srccode(perf_script_context)
+ if source_file_name:
+ if glb_line_number == line_number and glb_source_file_name == source_file_name:
+ src_str = ""
+ else:
+ if len(source_file_name) > 40:
+ src_file = ("..." + source_file_name[-37:]) + " "
+ else:
+ src_file = source_file_name.ljust(41)
+ if source_line is None:
+ src_str = src_file + str(line_number).rjust(4) + " <source not found>"
+ else:
+ src_str = src_file + str(line_number).rjust(4) + " " + source_line
+ glb_dso = None
+ elif dso == glb_dso:
+ src_str = ""
+ else:
+ src_str = dso
+ glb_dso = dso
+
+ glb_line_number = line_number
+ glb_source_file_name = source_file_name
+
+ print(start_str, src_str)
def do_process_event(param_dict):
global glb_switch_printed
@@ -159,24 +274,49 @@ def do_process_event(param_dict):
dso = get_optional(param_dict, "dso")
symbol = get_optional(param_dict, "symbol")
- print_common_start(comm, sample, name)
-
- if name == "ptwrite":
+ if name[0:12] == "instructions":
+ if glb_src:
+ print_srccode(comm, param_dict, sample, symbol, dso, True)
+ else:
+ print_instructions_start(comm, sample)
+ print_common_ip(param_dict, sample, symbol, dso)
+ elif name[0:8] == "branches":
+ if glb_src:
+ print_srccode(comm, param_dict, sample, symbol, dso, False)
+ else:
+ print_common_start(comm, sample, name)
+ print_common_ip(param_dict, sample, symbol, dso)
+ elif name == "ptwrite":
+ print_common_start(comm, sample, name)
print_ptwrite(raw_buf)
+ print_common_ip(param_dict, sample, symbol, dso)
elif name == "cbr":
+ print_common_start(comm, sample, name)
print_cbr(raw_buf)
+ print_common_ip(param_dict, sample, symbol, dso)
elif name == "mwait":
+ print_common_start(comm, sample, name)
print_mwait(raw_buf)
+ print_common_ip(param_dict, sample, symbol, dso)
elif name == "pwre":
+ print_common_start(comm, sample, name)
print_pwre(raw_buf)
+ print_common_ip(param_dict, sample, symbol, dso)
elif name == "exstop":
+ print_common_start(comm, sample, name)
print_exstop(raw_buf)
+ print_common_ip(param_dict, sample, symbol, dso)
elif name == "pwrx":
+ print_common_start(comm, sample, name)
print_pwrx(raw_buf)
+ print_common_ip(param_dict, sample, symbol, dso)
elif name == "psb":
+ print_common_start(comm, sample, name)
print_psb(raw_buf)
-
- print_common_ip(param_dict, sample, symbol, dso)
+ print_common_ip(param_dict, sample, symbol, dso)
+ else:
+ print_common_start(comm, sample, name)
+ print_common_ip(param_dict, sample, symbol, dso)
def process_event(param_dict):
try: