dixyes

// aarch64-linux-gnu-gcc fuckexposure.c -nostdinc -nostdlib -nostartfiles -e _start -g -o fuckexposure -Wall -static -ffreestanding -fno-stack-protector

#define NULL ((void *)0)

#define O_RDONLY 0
#define O_WRONLY 1
#define O_RDWR 2

#define AT_FDCWD -100

dixyes

#!/usr/bin/env python3

'''
Usage: ./fuckcache.py \
  --mount=type=secret,id=npmrc,target=/root/.npmrc \
  --mount=type=cache,target=/root/.npm \
  --mount=type=cache,id=somecache,target=/var/cache/somecache
like docker RUN instruction

it will product dockerfile and build it

dixyes

<?php

// x86_64 sysv abi only

// simple hello
$code = "" .
    "\x48\xc7\xc0\x01\x00\x00\x00" . // mov $0x1 (SYS_write for x86_64), %rax
    "\x48\xc7\xc7\x01\x00\x00\x00" . // mov $0x1 (stdout), %rdi
    "\x48\x8d\x35\x0b\x00\x00\x00" . // lea 0xb(%rip), %rsi PIE!
    "\x48\xc7\xc2\x0d\x00\x00\x00" . // mov $0xd (sizeof("hello world!\n") - 1), %rdx

dixyes

// SPDX-License-Identifier: GPL-2.0-or-later

/dts-v1/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include "armada-372x.dtsi"

/ {
        model = "Not Aliyun SAG-100wm";
        compatible =  "notaliyun,sag100wm",

dixyes

<?php

/**
 *  Win32 api utitlities class
 *  needs to be initialized with W32api::init()
 */
final class W32api
{
    private const BASIC_CDEFS = <<<'CDEF'
        typedef uint16_t WORD, *PWORD, *LPWORD;

dixyes

from PIL import Image, ImageDraw, ImageOps, ImageStat

"""
convert picture to matrix data uint8 array

this script is too slow...

maybe we should rewrite it in np things

dixyes

ASUS ROG Zephyrus G14 2022 GA402RJ pci passthrough

This is a record for my own passthrough setup, I can finally use a single laptop for windows gaming and linux programming at the same time.

The device

My G14 is GA402RJ(6800HS + 6700s) with MT7922 WiFi/BT card.

At this time, BIOS version is 309.

dixyes

#!/bin/sh

mirror_host='mirrors.ustc.edu.cn'

sed -i 's|^#baseurl=|baseurl=|g' /etc/yum.repos.d/fedora*
sed -i 's|^metalink=|#metalink=|g' /etc/yum.repos.d/fedora*
sed -i 's|^download.example/pub/fedora/linux|'"${mirror_host}"'/fedora|g' /etc/yum.repos.d/fedora*

dixyes

/*
this is undocumented, to be confirmed
read id_aa64isar0_el1 from registry HKLM\HARDWARE\DESCRIPTION\System\CentralProcessor\x\CP 4030
*/
uint64_t getaa64isar0() {
    const WCHAR cpus_key[] = L"HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\";
    HKEY cpus_handle;
    if (ERROR_SUCCESS != RegOpenKeyExW(HKEY_LOCAL_MACHINE, cpus_key, 0, KEY_ENUMERATE_SUB_KEYS, &cpus_handle)) {
        printf("failed open reg\n");
        return 0;

dixyes

<?php

declare(strict_types=1);

include_once __DIR__ . "/../vendor/autoload.php";

use PHPbc\PHPbc;
use PHPbc\Util;
use PHPbc\Config;
use PHPbc\Log;