坂本貴史 takaswie

A developer who has interests in kernel/user land interaction for system resources in Linux operating system.

takaswie / boot log

Created December 23, 2023 02:48

Trial with patched v6.6 kernel

	[ 0.000000] Linux version 6.6.0+ (mocchi@workstation) (gcc (Ubuntu 12.3.0-1ubuntu1~23.04) 12.3.0, GNU ld (GNU Binutils for Ubuntu) 2.40) #2 SMP PREEMPT_DYNAMIC Fri Dec 22 22:15:27 JST 2023
	[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-6.6.0+ root=UUID=26a542b3-43b6-462c-a156-e04bbd1f7371 ro console=ttyS0,115200 console=tty module_blacklist=usbnet,r8152 vt.handoff=7 efi=debug "dyndbg=file arch/x86/pci/* +p"
	[ 0.000000] KERNEL supported cpus:
	[ 0.000000] Intel GenuineIntel
	[ 0.000000] AMD AuthenticAMD
	[ 0.000000] Hygon HygonGenuine
	[ 0.000000] Centaur CentaurHauls
	[ 0.000000] zhaoxin Shanghai
	[ 0.000000] BIOS-provided physical RAM map:
	[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009ffff] usable

takaswie / sample

Last active September 24, 2023 02:10

Hitaki.SndDice sample program for Python 3 runtime

	#!/usr/bin/env python3

	import gi
	gi.require_versions({'GLib': '2.0', 'Hitaki': '0.0'})
	from gi.repository import GLib, Hitaki

	from sys import argv, exit
	from pathlib import Path
	from threading import Thread
	from time import sleep

takaswie / mixer-class-event-removal.c

Last active June 25, 2022 11:16

Assertion test at mixer class implementation for removal event

	#include <alsa/asoundlib.h>
	#include <sys/epoll.h>
	#include <stdbool.h>

	static bool unsafe;

	// (alsa-lib:src/mixer/mixer.c)
	// snd_mixer_handle_events()
	// (alsa-lib:src/control/hcontrol.c)
	// ->snd_hctl_handle_events()

takaswie / result.log

Created March 6, 2022 07:27

speaker-test result

takaswie / trx

Created March 5, 2022 12:10

Asynchronous transaction tool with libhinawa2

	#!/usr/bin/env python3

	import gi
	gi.require_version('GLib', '2.0')
	gi.require_version('Hinawa', '3.0')
	from gi.repository import GLib, Hinawa

	from sys import argv, exit
	from threading import Thread
	from struct import unpack, pack

takaswie / migration-to-gi-docgen.txt

Created February 19, 2022 07:24

Migration to gi-docgen

	# gi-docgenについて

	2022/02/19
	坂本貴史

	* 概要
	* 2021年にGNOMEプロジェクトの標準ドキュメンテーションツールが変わりました
	* gtkdocからgi-docgenへ

	* gtkdoc

takaswie / dump-offset-and-size.c

Last active October 7, 2021 07:42

ABI compatibility test for asound.h in regards of snd_pcm_mmap_control

	#include <stdio.h>
	#include <stdlib.h>
	#include <stddef.h>

	#include <stdint.h>

	#define __user
	#include "path-to-include/uapi/sound/asound.h"

	#if defined(PREVIOUS)

takaswie / pcm-rw-interleaved.c

Last active June 23, 2024 12:54

ALSA PCM application to utilize intermediate buffer inner kernel space

takaswie / parse.py

Last active December 25, 2020 00:40

parser for 'perf.data.script.211220202054.txt'

	#!/usr/bin/env python3

	from sys import argv
	from re import compile, search

	records = []

	with open(argv[1], 'r') as f:
	record = []
	for line in f.readlines():

takaswie / avid-trx.py

Last active September 17, 2020 03:41

Avid Adlenarine asynchronous protocol

	#!/usr/bin/env python3

	# SPDX-License-Identifier: GPL-3.0-or-later
	# Copyright (c) 2020 Takashi Sakamoto

	import gi
	gi.require_version('GLib', '2.0')
	gi.require_version('Hinawa', '3.0')
	from gi.repository import GLib, Hinawa

坂本 貴史 takaswie