gnu cobol

GNU Tool Chain Learning notes1..so is a dynamic link library, and. A is a static connection library. They are stored under Linux in the ELF format. There are four types of elf files. A relocatable file (relocatable file,*.o,*.a) that contains code and data that can be used to connect to an executable file or to a shared target file, an executable file (executable file), an elf executable, and a shared object file file,*.so), which contains the code an

At ordinary times the work of the Assembly, the emergence of a moment, I would like to see the GNU compiler generated by the assembly code is what.1. Generate assembly CodeI wrote a very simple C language code, as followsThen, execute thegcc-s SIMPLE_PROGRAM.S simple_program.c"Generate assembly code (SIMPLE_PROGRAM.S）。The following is a commented assembly code, which is not commented out by the compiler generated assembly code.2. Compilation of knowle

/********************************************************************* * Author:samson * date:05/19/2014 * Test PL Atform: * Mint 15-3.8.13.13 * GNU bash, version 4.2.45 * *************************************** ****************************/Rtc:The Real time Clock (RTC) unit can be operated by the backup battery when the system power is off. The dataInclude the time by second, minute, hour, date, day, month, and year. The RTC unit works with an extern

In a 64-bit system, after writing a C language program, the following error occurred when compiling with GCC:Test.c:1:19:fatal error:stdio.h: No file or directory#include In view of the above situation, for in the 32 environment generally do not appear this problem, because the LIBC header file has been included in the system, then in this case, the main check whether a complete development environment is installed:Build-essential Package-installs The following collection to compile C + + progra

had to give us a great tribute and admiration for the Masters who designed the editor, the power of Emacs is not limited to editorial functions, but also provides many customization options, and we can do our daily work without having to move the mouse (which may not be realistic for most people), Below I just briefly describes how to use Emacs to compile/run C/s + + programs, the text of the relevant commands can refer to my other blog. Emacs has many versions, such as

Under Gnu/linux, when you need to open other format files, we usually go into the directory where the file is located, double-click Open, very effective. In fact, you can open these format files, even Web pages, by command Xdg-open, as simple as opening a file. Under Gnu/linux, text files are usually opened using the command line, such as commands Gedit, more, cat, vim, less. But when you need to open othe

First of all, I have to say that installing the GNU radio on Ubuntu is really not a simple thing for beginners. I did not know from the beginning of a little to the last familiarity, understanding, the successful installation of the GNU Radio spent about 3 days a full time. Now share what you have learned in this process and hope it will help. There are generally two ways to install the

Although it is convenient to use C or C ++ to write programs in Linux, the assembler source program is used for the most basic initialization of the system, such as initializing the stack pointer, setting the page table, and operating the arm coprocessor. After initialization, you can jump to C code execution. Note that the GNU assembler follows att's Assembly syntax and can download the relevant specifications from the

Release date:Updated on: Affected Systems:GNU Bash 4.3Description:--------------------------------------------------------------------------------Bugtraq id: 67803Bash, a Unix shell, was written by Brian fox for the GNU program in 1987.GNU Bash 4.3 and other versions have security vulnerabilities. Remote attackers can exploit this vulnerability to bypass certain security restrictions and perform unauthoriz

Sebastian Krahmer, SUSE Security Research Member, announced the GNU/Linux kernel Elevation of Privilege Vulnerability. The recent GNU/Linux kernel (3.8 +) introduced a new feature to facilitate container implementation: user-namespaces (user-ns, CLONE_NEWUSER flag), this feature allows you to own a UID of 0, as a container for process isolation, this facilitates implementation, but it also brings related se

Release date:Updated on: Affected Systems:GNU CoreutilsDescription:--------------------------------------------------------------------------------Bugtraq id: 57517CVE (CAN) ID: CVE-2013-0222Coreutils is a basic file, shell, and text control tool used by the GNU operating system.When GNU Coreutils processes input streams containing super-long strings, The uniq command has segfault, causing arbitrary code ex

Release date:Updated on: Affected Systems:Gnu c Library (glibc) 2.xDescription:--------------------------------------------------------------------------------Bugtraq id: 51439Cve id: CVE-2011-4609 Glibc is the implementation of C libraries in most Linux operating systems. When GNU libc handles EMFILE errors, there are errors in the "rendezvous_request ()" and "svcudp_recv ()" functions, which can be exploited to cause high CPU consumption and syst

Release date:Updated on: Affected Systems:GNU emacss 23.3GNU emacss 23.2Unaffected system:GNU emacss 23.4Description:--------------------------------------------------------------------------------Bugtraq id: 51354Cve id: CVE-2012-0035 Emacs is an extensible Real-Time Display Editor. GNU Emacs has a remote code execution vulnerability. After successful exploitation, attackers can execute arbitrary code with the current user permission. Link: http:

GNU glibc gethostbyname Buffer Overflow Vulnerability The gethostbyname function of the GNU glibc standard library has a buffer overflow vulnerability. Vulnerability No.: CVE-2015-0235. For details, see here. Glibc is a C library that provides system calls and basic functions, such as open, malloc, and printf. All programs with dynamic connections need to use it. Upgrade glibc to 7.6 In Debian 2.15 Debi

Release date:Updated on: Affected Systems:GNU glibc 2.xDescription:--------------------------------------------------------------------------------Bugtraq id: 54374 Glibc is the implementation of C libraries in most Linux operating systems. GNU glibc has multiple security vulnerabilities in formatting and printing. After successful exploitation, attackers can destroy the memory, bypass security restrictions, and execute arbitrary code in affected l

I beg for the GNU Compilation Guide and read the kernel, but I don't understand a word-Linux general technology-Linux technology and application information. The following is a detailed description. I beg for the GNU Assembly guide and read the kernel. I don't understand a word. Static _ inline _ void atomic_add (int I, atomic_t * v) { _ Asm _ volatile __( LOCK "addl % 1, % 0" : "= M" (v-> counter) :

The inventor of the GNU Prolog array Prolog design is a scholar at the University of Marseille, France. In order to maintain its pure language and Academic characteristics, the original Prolog has no arrays and no explicit data types. This is not necessarily a good thing for the actual needs of Using Prolog, because in many cases, the program runs too slowly. For example, arrays in C can be easily searched by subscript, such as array1 [3], array2 [5]

Http://blog.csdn.net/lawme/archive/2008/10/17/3089770.aspx 6. briefly explain the statements related to GTK-Server This is a basic knowledge of PROLOG syntax and usage. refer to the following tutorial. Http://www.csupomona.edu /~ Jrfisher/www/prolog_tutorial/contents.html For the internal predicates of GNU Prolog, see Http://www.gprolog.org/manual/gprolog.html (1) automatically executed statements After the program tictactoe. pl is started, this stat

Debian GNU/Linux Input Method settings The following settings are used in Debian GNU/Linux. 1. GNOME Desktop Environment :~ /. Gnomerc or write file/etc/X11/xsession. d/90im-startupContent:# FcitxExport xmodifiers = @ im = fcitxFcitx Or# ScimExport xmodifiers = @ im = scimExport gtk_im_module = scimScim-d If you want to use the Chinese Input Method on the English interface, you can add the following two lin

As an open-source alternative to Matlab, GNU Ave ave is similar and different. Especially in scientific plotting, it is not a habit to start using it. It cannot be said here. Without commercial support, in the field of professional software, the quality, ease of use and comprehensive functions of open-source software are hard to guarantee: after all, it only provides an open window for advanced users and those who are willing to spend their time on it