paranlee

#!/bin/bash

# Starter script for Fedora aarch64 in QEMU, cobbled from various sources.
# Requires qemu-system-aarch64 to be installed.

# Configuration options:
IMAGE=fedora-29-aarch64.img
RAM=2048
CPUS=4

paranlee

Linking libstdc++ statically
Christopher Baus writes about his problems linking libstdc++ statically. Yes, making C++ binaries that will work properly in different Linux distributions is somewhat painful. The problem is not so much linking libstdc++ statically – it is just a library, after all – but the runtime support required by C++ code in general, to enable features like RTTI and exception handling.

The runtime support code used by different parts of a C++ application needs to be compatible. If one part of the program needs to dynamic_cast or catch objects provided by another, both parts must agree on certain implementation details: how to find vtables, how to unwind the stack, and so on.

For C++ and a few other GCC-supported languages with similar features, such details are specified by a C++ ABI. Whenever the ABI used by GCC changes you'll end up with incompatible libraries produced by the different GCC versions. The same is true for plain C, but the C ABI is much simpler and has been around a lot lon

paranlee

/*
 * Demonstrate a trivial filesystem using libfs.
 *
 * Copyright 2002, 2003 Jonathan Corbet <[email protected]>
 * This file may be redistributed under the terms of the GNU GPL.
 *
 * Chances are that this code will crash your system, delete your
 * nethack high scores, and set your disk drives on fire.  You have
 * been warned.

paranlee

/*
 * Demonstrate a trivial filesystem using libfs.
 *
 * Copyright 2002, 2003 Jonathan Corbet <[email protected]>
 * This file may be redistributed under the terms of the GNU GPL.
 *
 * Chances are that this code will crash your system, delete your
 * nethack high scores, and set your disk drives on fire.  You have
 * been warned.
 */

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/**
 * Linux Device Driver Tutorial Part 9 – Procfs in Linux
 *  - https://embetronicx.com/tutorials/linux/device-drivers/procfs-in-linux/
 **/

/***************************************************************************//**
*  \file       driver.c
*
*  \details    Simple Linux device driver (procfs)
*

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#!/bin/sh
#
# Version         dump_proc_mem 0.0.1
# Author          Jan Gru
# Copyright       Copyright (c) Jan Gru
# License         GNU General Public License

# Checks, if root permissions
if [ $(id -u) -ne 0 ]
   then echo "Error: needing root permissions!" >&2

paranlee

# arm64
# CONFIG_60XX_WDT is not set
CONFIG_64BIT=y
# CONFIG_6LOWPAN_DEBUGFS is not set
# CONFIG_6LOWPAN is not set
# CONFIG_6LOWPAN_NHC is not set
CONFIG_8139CP=m
# CONFIG_8139_OLD_RX_RESET is not set
CONFIG_8139TOO_8129=y
CONFIG_8139TOO=m

paranlee

# bcc

sudo yum install -y epel-release
sudo yum update -y
sudo yum groupinstall -y "Development tools"
sudo yum install -y elfutils-libelf-devel git bison flex ncurses-devel
sudo yum install -y luajit luajit-devel  # for Lua support

sudo yum install -y python3 python3-devel python3-pip
pip3 install cmake

paranlee

SVN에서 Git으로 전환하기

(원문 http://www.sailmaker.co.uk/blog/2013/05/05/migrating-from-svn-to-git-preserving-branches-and-tags-3/ )

브랜치와 태그 보전하면서

git svn 을 사용해서 SVN에서 브랜치와 태그를 보존하면서 Git으로 전환하는 것을 설명한다.

로컬 스테이징 리파지토리로 import

로컬 스테이징 폴더 생성

$ mkdir staging

paranlee

Binary files dbxml-2.5.16.orig/db-4.8.26/dbinc/.atomic.h.un~ and dbxml-2.5.16/db-4.8.26/dbinc/.atomic.h.un~ differ
diff -ruN dbxml-2.5.16.orig/db-4.8.26/dbinc/atomic.h dbxml-2.5.16/db-4.8.26/dbinc/atomic.h
--- dbxml-2.5.16.orig/db-4.8.26/dbinc/atomic.h  2013-06-03 21:04:07.000000000 +0200
+++ dbxml-2.5.16/db-4.8.26/dbinc/atomic.h	2013-06-03 21:10:53.000000000 +0200
@@ -144,7 +144,7 @@
 #define	atomic_inc(env, p)	__atomic_inc(p)
 #define	atomic_dec(env, p)	__atomic_dec(p)
 #define	atomic_compare_exchange(env, p, o, n)	\
-	__atomic_compare_exchange((p), (o), (n))
+	__atomic_compare_exchange_db((p), (o), (n))