摘要：linux driver write writel_relaxed readb()和writeb()系列函数 1 #define readb_relaxed(c) ({ u8 __r = __raw_readb(c); __r; }) 2 #define readw_relaxed(c) ({ u1
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posted @ 2021-11-16 17:58
随笔分类 - os
摘要：[ 0.431010] OF: tracing soc __of_get_address 1 [ 0.447918] OF: timer0: could not get #clock-cells for clk@1 [ 0.461946] OF: watchdog0: could not get #
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posted @ 2021-11-16 15:50
摘要：一般CPU频率（FCLK)高于内存、网卡等设备频率（HCLK)，而串口、USB、I2C等设备频率(PCLK)更低。 分频： CPU工作于FCLK时钟；FCLK分倍频1/2或1/4等给内存、网卡、Nand flash等设备使用，即HCLK时钟；HCLK分倍频给串口、USB、I2C等低速设备，即PCLK
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posted @ 2021-11-14 11:00
摘要：for i in `find -type f`; do [ -x $i ] && echo "$i is executable"; done
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posted @ 2021-11-02 19:18
摘要：[root@centos7 ~]# cat test.c #include <stdlib.h> #include <stdio.h> #include <unistd.h> int main() { int ret = 0; ret = fork(); if (ret == 0) { execv(
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posted @ 2021-10-23 18:16
摘要：main.c:(.text+0x5f10): undefined reference to `timer_create' main.c:(.text+0x5f3d): undefined reference to `timer_settime' main.c:(.text+0x5f75): unde
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posted @ 2021-10-19 14:11
摘要：import numpy as np import matplotlib.pyplot as plt import pandas as pd from scipy.stats import norm from scipy.stats import shapiro import statistics
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posted @ 2021-10-19 10:54
摘要：root@Ubuntu-riscv64:/usr/src/linux-5.14# make ARCH=riscv headers_install INSTALL ./usr/include root@Ubuntu-riscv64:/usr/src/linux-5.14# make ARCH=risc
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posted @ 2021-10-15 11:10
摘要：补丁下载 内核代码 root@Ubuntu-riscv64:/usr/src/linux-5.14# head Makefile # SPDX-License-Identifier: GPL-2.0 VERSION = 5 PATCHLEVEL = 14 SUBLEVEL = 0 EXTRAVERS
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posted @ 2021-10-14 10:40
摘要：[root@centos7 hello_world_c]# aarch64-rtems6-gdb o-optimize/hello.exe GNU gdb (GDB) 10.1.90.20210409-git Copyright (C) 2021 Free Software Foundation,
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posted @ 2021-10-13 12:14
摘要：系统信息 [root@centos7 ~]# qemu-system-aarch64 -version QEMU emulator version 4.2.0 Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developer
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posted @ 2021-10-12 15:13
摘要：[ 136.088255] ecrt_master_create_domain_err+0x18/0x100 [ec_master] [ 136.094454] ecrt_master_create_domain+0x20/0x38 [ec_master] [ 136.100195] hello_i
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posted @ 2021-09-29 11:46
摘要：root@ubuntu:~/karmada# docker images | grep karmada gcr.io/karmada-controller-manager v0.7.0-111-g8effddd 8dba76916685 3 hours ago 67.7MB ubuntu:5000/
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posted @ 2021-08-17 14:35
摘要：static void dm9000_rx(struct net_device *dev) { board_info_t *db = netdev_priv(dev); struct dm9000_rxhdr rxhdr; /* 该结构体按照DM9000的接收格式封装了dm9000接收的数据包信息
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posted @ 2021-08-10 16:47
摘要：[root@localhost satimis]# chroot "$LFS" /tools/bin/env -i \ > HOME=/root TERM="$TERM" PS1='\u:\w\$ ' \ > PATH=/bin:/usr/bin:/sbin:/usr/sbin:/tools/bin
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posted @ 2021-08-05 11:55
摘要：1018 git clone https://github.com/kubernetes/ingress-nginx.git 1023 git tag --list 1025 git checkout -b controller-v0.44.0 root@ubuntu:~/nginx_ingress
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posted @ 2021-07-30 17:49
摘要：string_view: No such file or directory std::string_view is not available in GCC until version 7. root@ubuntu:~/c++# gcc --version gcc (Ubuntu/Linaro 5
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posted @ 2021-07-02 15:21
摘要：demo1 root@cloud:/etc/haproxy# cat haproxy.cfg # # Example configuration for a possible web application. See the # full configuration options online.
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posted @ 2021-06-25 17:57
摘要：root@cloud:~# tcpdump -i enahisic2i0 "ip proto 4" and host 10.10.16.82 -ennvv tcpdump: listening on enahisic2i0, link-type EN10MB (Ethernet), capture
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posted @ 2021-06-21 16:11
摘要：https://www.nslookuptool.com/#A&baidu.com [root@bogon ~]# nslookup doh.pub Server: 8.8.8.8 Address: 8.8.8.8#53 Non-authoritative answer: Name: doh.pub
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posted @ 2021-06-08 15:57
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