cyyself

#!/bin/sh
ebtables -t broute -A BROUTING -p ! ipv6 -j DROP
brctl addbr ipv6br
ifconfig ipv6br up
brctl addif ipv6br eth0
brctl addif ipv6br wlan0

cyyself

interface=wlan0
driver=nl80211

hw_mode=a
ieee80211n=1
ieee80211ac=1
ieee80211d=1
ieee80211h=1
require_ht=1
require_vht=1

cyyself

<?php
	$curl_cmd = trim(fgets(STDIN));
	$filename = md5($curl_cmd) . '.html';
	while (1) {
		$ret = shell_exec($curl_cmd.' -w %{http_code} -o '. $filename .' -i');
		if ($ret != '503') break;
	}
	echo 'Saved to ' . $filename . "\n";
?>

cyyself

/*
'A'-'Z'表示命题
!表示非
&表示合取
|表示析取
A@B表示如果A，那么B
A#B表示双条件
()表示优先级
*/
#include <bits/stdc++.h>

cyyself

import os
import os.path
import win32com
import win32com.client
import time
def ppt2pptx(file):
	powerpoint = win32com.client.Dispatch('PowerPoint.Application')
	win32com.client.gencache.EnsureDispatch('PowerPoint.Application')
	powerpoint.Visible = 1
	ppt = powerpoint.Presentations.Open(file)

cyyself

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]
"RealTimeIsUniversal"=dword:00000001

cyyself

module some_server(
    input clk,
    input rst,
    input ethernet_frame_bit_in,//high bit first
    output correct
);

reg [9:0] current_stat;
assign correct = (current_stat == 10'd896);

cyyself

module axi_perf(
    input         clock,
    input         reset,
    input         mem_axi4_0_awready,
    output        mem_axi4_0_awvalid,
    output  [3:0] mem_axi4_0_awid,
    output [30:0] mem_axi4_0_awaddr,
    output  [7:0] mem_axi4_0_awlen,
    output  [2:0] mem_axi4_0_awsize,
    output  [1:0] mem_axi4_0_awburst,

cyyself

/*
Hello, I'm using d1-wip kernel from https://github.com/smaeul/linux/commits/riscv/d1-wip.

My rootfs is archriscv from https://mirrors.wsyu.edu.cn/archriscv/images/archriscv-20210601.tar.zst.

I found some programs running on this kernel will get SEGV, such as curl.

I delve into this problem and found the root cause is about pthread. It just trap at "amoswap.w.aq a5,a5,(s1)". And the value of register s1 is an address on the stack.

Here is a simple program with pthread. using gcc -lpthread to compile and run on D1-board with work in progress kernel is fine.

cyyself

#include <stdio.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>

int main() {
    int fd = shm_open("test-shm", O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
    if (fd == -1) {
        printf("Unable to open shm\n");