# stackcollapse.py - format perf samples with one line per distinct call stack # SPDX-License-Identifier: GPL-2.0 # # This script's output has two space-separated fields. The first is a semicolon # separated stack including the program name (from the "comm" field) and the # function names from the call stack. The second is a count: # # swapper;start_kernel;rest_init;cpu_idle;default_idle;native_safe_halt 2 # # The file is sorted according to the first field. # # Input may be created and processed using: # # perf record -a -g -F 99 sleep 60 # perf script report stackcollapse > out.stacks-folded # # (perf script record stackcollapse works too). # # Written by Paolo Bonzini # Based on Brendan Gregg's stackcollapse-perf.pl script. from __future__ import print_function import os import sys from collections import defaultdict from optparse import OptionParser, make_option sys.path.append(os.environ['PERF_EXEC_PATH'] + \ '/scripts/python/Perf-Trace-Util/lib/Perf/Trace') from perf_trace_context import * from Core import * from EventClass import * # command line parsing option_list = [ # formatting options for the bottom entry of the stack make_option("--include-tid", dest="include_tid", action="store_true", default=False, help="include thread id in stack"), make_option("--include-pid", dest="include_pid", action="store_true", default=False, help="include process id in stack"), make_option("--no-comm", dest="include_comm", action="store_false", default=True, help="do not separate stacks according to comm"), make_option("--tidy-java", dest="tidy_java", action="store_true", default=False, help="beautify Java signatures"), make_option("--kernel", dest="annotate_kernel", action="store_true", default=False, help="annotate kernel functions with _[k]") ] parser = OptionParser(option_list=option_list) (opts, args) = parser.parse_args() if len(args) != 0: parser.error("unexpected command line argument") if opts.include_tid and not opts.include_comm: parser.error("requesting tid but not comm is invalid") if opts.include_pid and not opts.include_comm: parser.error("requesting pid but not comm is invalid") # event handlers lines = defaultdict(lambda: 0) def process_event(param_dict): def tidy_function_name(sym, dso): if sym is None: sym = '[unknown]' sym = sym.replace(';', ':') if opts.tidy_java: # the original stackcollapse-perf.pl script gives the # example of converting this: # Lorg/mozilla/javascript/MemberBox;.(Ljava/lang/reflect/Method;)V # to this: # org/mozilla/javascript/MemberBox:.init sym = sym.replace('<', '') sym = sym.replace('>', '') if sym[0] == 'L' and sym.find('/'): sym = sym[1:] try: sym = sym[:sym.index('(')] except ValueError: pass if opts.annotate_kernel and dso == '[kernel.kallsyms]': return sym + '_[k]' else: return sym stack = list() if 'callchain' in param_dict: for entry in param_dict['callchain']: entry.setdefault('sym', dict()) entry['sym'].setdefault('name', None) entry.setdefault('dso', None) stack.append(tidy_function_name(entry['sym']['name'], entry['dso'])) else: param_dict.setdefault('symbol', None) param_dict.setdefault('dso', None) stack.append(tidy_function_name(param_dict['symbol'], param_dict['dso'])) if opts.include_comm: comm = param_dict["comm"].replace(' ', '_') sep = "-" if opts.include_pid: comm = comm + sep + str(param_dict['sample']['pid']) sep = "/" if opts.include_tid: comm = comm + sep + str(param_dict['sample']['tid']) stack.append(comm) stack_string = ';'.join(reversed(stack)) lines[stack_string] = lines[stack_string] + 1 def trace_end(): list = sorted(lines) for stack in list: print("%s %d" % (stack, lines[stack])) -4.6.y'>linux-4.6.y Hosts the 0x221E linux distro kernel.Ubuntu

summary refs log tree commit diff

path: root/drivers/gpu/drm/imx/dcss

Age	Commit message (Expand)	Author
2021-11-30	drm: Remove CONFIG_DRM_KMS_CMA_HELPER option	Thomas Zimmermann
2021-07-28	drm/bridge: Centralize error message when bridge attach fails	Laurent Pinchart
2021-06-29	drm/imx/dcss: Don't set struct drm_device.irq_enabled	Thomas Zimmermann
2021-06-24	drm/<driver>: drm_gem_plane_helper_prepare_fb is now the default	Daniel Vetter
2021-04-15	drm/imx: Don't set allow_fb_modifiers explicitly	Daniel Vetter
2021-02-25	drm: Use state helper instead of the plane state pointer	Maxime Ripard
2021-02-25	drm/atomic: Pass the full state to planes atomic disable and update	Maxime Ripard
2021-02-24	drm: Rename plane->state variables in atomic update and disable	Maxime Ripard
2021-02-24	drm: Use the state pointer directly in planes atomic_check	Maxime Ripard
2021-02-24	drm/atomic: Pass the full state to planes atomic_check	Maxime Ripard
2021-02-24	drm: Rename plane atomic_check state names	Maxime Ripard
2021-02-23	drm/gem: Move drm_gem_fb_prepare_fb() to GEM atomic helpers	Thomas Zimmermann
2020-11-26	drm/imx/dcss: allow using nearest neighbor interpolation scaling	Laurentiu Palcu
2020-11-26	drm/imx/dcss: fix coccinelle warning	Laurentiu Palcu
2020-11-26	drm/imx/dcss: fix rotations for Vivante tiled formats	Laurentiu Palcu
2020-11-06	drm/<drivers>: Constify struct drm_driver	Daniel Vetter
2020-11-02	drm/atomic: Pass the full state to CRTC atomic begin and flush	Maxime Ripard
2020-10-09	drm/atomic: Pass the full state to CRTC atomic enable/disable	Maxime Ripard
2020-09-25	drm/imx/dcss: Initialize DRM driver instance with CMA helper macro	Thomas Zimmermann
2020-09-21	drm/imx/dcss: fix unused but set variable warnings	Wang ShaoBo
2020-09-10	drm/imx/dcss: fix compilation issue on 32bit	Laurentiu Palcu
2020-09-09	drm/imx/dcss: use drm_bridge_connector API	Laurentiu Palcu
2020-09-09	drm/imx: Add initial support for DCSS on iMX8MQ	Laurentiu Palcu