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Topic: Program loader


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In the News (Wed 30 Dec 09)

  
  Loader (computing) - Wikipedia, the free encyclopedia
In computing, a loader is a program that performs the functions of a linker program and then immediately schedules the resulting executable program for action (in the form of a memory image), without necessarily saving the program as an executable file.
Loader programs are useful for prototyping, testing, and one-off applications.
One such program was an integral part of Gene Amdahl's original OS/360 operating system, and this loader facility was continued through OS/360's descendants including MVT, MVS and z/OS.
en.wikipedia.org /wiki/Program_loader   (143 words)

  
 External Program Linkage   (Site not responding. Last check: 2007-10-12)
When a program is loaded the actual program file is left unaltered and the nececsary changes to establish external linkage are made to a copy of the GLAP, referred to as the GLA (General Linkage Area).
The loader replaces the three zero-filled words with the virtual memory addresses of the start of the code block, the start of the GLA block and the entry point address respectively of the program file satisfying the reference.
With the exception of the external references satisfied by the loader all virtual memory addresses have to be established by the program at run-time.
history.dcs.ed.ac.uk /archive/docs/EMAS_Linkage/document.html   (1209 words)

  
 CYBER Loader   (Site not responding. Last check: 2007-10-12)
The CDC SCOPE program loader, later known as the CYBER Loader, was a complex program the combined the functions of a linkage editor and an image loader.
However, once development had settled down and a stable version of a program had been completed, it would have been wasteful to require each user of a program to relink the program from relocatable object each time it was run.
Programs created in this way were not generally referred to as "overlayed", as they were a trivial special case of the full overlaying mechanism described below.
www.msu.edu /~mrr/mycomp/cdc6000/65loader.htm   (1355 words)

  
 SCSI initial program loading for zSeries
A dump program for an OS is used when the OS has failed and it is necessary to dump the contents of memory to a storage device for analysis.
Finally, the machine loader uses the LUN from the input parameters to issue an Open LUN request to the FCP channel [3], which establishes a logical connection in the channel to the logical unit serving as the IPL device.
The machine loader is not aware of such assistance because zSeries instruction interception gives control to a hypervisor (LPAR or VM) when required by the architecture or requested by the hypervisor, and the hypervisor causes the instruction to appear to have been completed in the architecturally defined manner.
www.research.ibm.com /journal/rd/483/banzhaf.html   (6402 words)

  
 Shared libraries implemented with linking program loader - Patent 5291601
The program 16 is stored on disk storage unit 12 as a relocatable file wherein references to library routines 30 and library data 32 appear in program code 40 as symbols rather than addresses or pointers to the library.
The reason for comparing the program symbol value with the library symbol value in step 10 is to determine whether the point in the alphabetically sorted library symbol table where the program symbol should have been found has been passed.
Next, the unsorted program symbol table 202 is used to generate a sorted program symbol table 204 in which the symbols are arranged alphabetically.
www.freepatentsonline.com /5291601.html   (5569 words)

  
 [No title]
DESCRIPTION Throughout this manual page, the regular, executable, pro- cess image file identified by the loader parameter is referred to as the program loader, and the regular, execut- able, process image file specified by the file parameter is referred to as the file.
This new loader will be used to load the specified file, if a loader is required in the process.
The loader parameter may be null, in which case the exec_with_loader() function loads the default program loader, found in the /sbin/loader file.
www.sandia.gov /ASCI/Red/usage/paragon/man/man2/exec_with_loader.2.html   (463 words)

  
 Dynamic Linking and Loading
Most programs ship with copies of all of the libraries they use, and installers often will inadvertently install an older version of a shared library on top of a newer one, breaking programs that are expecting features found in the newer one.
All calls within the program or library to a particular routine are adjusted when the program or library is built to be calls to the routine's entry in the PLT.
If a program has an external reference to a global variable defined in a shared library, the linker has to create in the program a copy of the variable, since program data addresses have to be bound at link time, Figure 4.
www.iecc.com /linker/linker10.html   (6526 words)

  
 Contiki 2.x: The Contiki program loader
It includes a string describing the program, the name of the program file on disk (or a pointer to the programs initialization function for systems without disk support), a bitmap icon and a text version of the same icon.
A pointer argument that is passed to the program.
This macro is used for unloading a program and deallocating any memory that was allocated during the loading of the program.
www.sics.se /~bg/telos/html/a00075.html   (311 words)

  
 Shared Libraries
The program ldconfig(8) by default reads in the file /etc/ld.so.conf, sets up the appropriate symbolic links in the dynamic link directories (so they'll follow the standard conventions), and then writes a cache to /etc/ld.so.cache that's then used by other programs.
Therefore, in the GNU loader (which loads the rest of the program on program start-up), if the program is setuid or setgid these variables (and other similar variables) are ignored or greatly limited in what they can do.
The loader determines if a program is setuid or setgid by checking the program's credentials; if the uid and euid differ, or the gid and the egid differ, the loader presumes the program is setuid/setgid (or descended from one) and therefore greatly limits its abilities to control linking.
www.tldp.org /HOWTO/Program-Library-HOWTO/shared-libraries.html   (3393 words)

  
 Loader | System Management
The Program Loader is responsible for loading and unloading executable programs in the calling process.
so that the program loader doesn't perform verification of the digital signature on the executable module even if the security property of the calling process requires that the digital signature be verified.
A value of zero instructs the program loader to perform verification of digital signatures on the executable program according to the security property of the calling process.
www.palmos.com /dev/support/docs/protein_books/SysMgt/Loader.html   (2273 words)

  
 melabs Loader - Program FLASH devices without a programmer
A bootloader is a program that resides in the code space of the target MCU.
This small program must be put into the PICmicro MCU using a conventional programmer, or the MCU may be purchased with this program already resident.
The program resident on the PICmicro MCU communicates with the second element of the loader over a serial connection.
www.melabs.com /products/loader.htm   (558 words)

  
 Secure programmer: Keep an eye on inputs
If parts of your program run as "root" or some other privileged user, or have privileged access to data (such as the data in a database), then inputs to those parts from the unprivileged parts and programs are untrusted.
The privileged program, of course, must defend itself from all attacks, but this approach usually means that the part of the program that must be secured is much smaller and easier to defend.
Programs have many other inputs, such as the current directory, signals, memory maps, System V IPC, the umask, and the state of the filesystem.
www-106.ibm.com /developerworks/linux/library/l-sp3.html   (3792 words)

  
 Spark Fun Electronics   (Site not responding. Last check: 2007-10-12)
A boot loader is a little program running on a PIC that takes incoming input and records the incoming data into the program area of the PIC's memory.
The purpose of a boot loader is to load programs onto a microcontroller over a serial line without the need of a high voltage or otherwise hardware orientated programmer.
Bloader is the program that resides on the PIC.
www.sparkfun.com /tutorial/Bloader/bloader.htm   (1160 words)

  
 loader.asm Description
The loader.asm program is a demonstration boot loader which is capable of loading a "home-grown" operating system from either a floppy or hard drive.
I have also included a demo target program beroset.asm which just displays a message and halts, but it shows that the program was really loaded into memory.
The thing that makes this boot loader different from most is that it loads an ordinary DOS file into memory and is not dependent on the target program being in a particular location on the hard drive or floppy.
www.beroset.com /loader.html   (1168 words)

  
 JVC Professional Customer Support - EZLink Loader Program
Program has been developed to provide an additional level of support in the event that you require service for your transportable JVC D-ILA Projector.
Extensions of this program to cover the second and third year of product warranty are available at attractive rates.
Customerand's acceptance of this Program is subject to JVC approval.
pro.jvc.com /prof/support/ezlinkloanerprogram.jsp   (338 words)

  
 PICBasic PRO
This is ideal for MicroCode Loader to communicate with the target device using a serial cable connected to your computer.
Because the loader resides upper program memory, it needs a way to 'jump' to the start of the bootloader code when power is first applied, or when the microcontroller is reset.
When you program the target microcontroller using MicroCode Loader, program instructions that occupy the first four locations are automatically relocated by the bootloader.
www.mecanique.co.uk /code-studio/loader/index.html   (731 words)

  
 Garmin: POI Loader   (Site not responding. Last check: 2007-10-12)
POI Loader must first be installed on your PC.
With POI Loader, you can configure your unit to alert you when you are within a certain distance of a point or if you are driving over a certain speed near a point — perfect to warn you about upcoming school zones, red lights, and speed cameras.
For more information on POI Loader, see the help file that is included with the free software download.
www.garmin.com /products/poiloader   (656 words)

  
 The Java Loader
In this case, the children of the document element are considered to be the elements to be loaded into a Tamino doctype, and the document element itself is ignored.
To run the loader, enter a command with the following syntax on the command line (the syntax is split across several lines for better readability).
The value "loadRequest" for the -format option specifies the format that is expected by the Tamino Data Loader (see the Tamino Data Loader for more details of this utility).
hatbox.lib.virginia.edu /taminodoc/loaders/ldjavlod.htm   (1633 words)

  
 Smart Cache Loader Manual - Program command line options   (Site not responding. Last check: 2007-10-12)
Smart Cache loader is controlled by Program configuration file, Chapter 3 and command line options.
Program will search known locations in config file and if given URL belongs to known location it will inherit its settings; otherwise it will use settings for default location.
When loader sees this URL when processing others, it will not take any action because this URL is marked as already done.
scloader.sourceforge.net /html/ch-commandline.html   (344 words)

  
 Spark Fun Electronics   (Site not responding. Last check: 2007-10-12)
A boot loader is a little program or function running on a PIC that takes incoming input and records the incoming data into the program area of the PIC's memory.
I originally got started by googling "PIC boot loader", and the first thing to show up was the GoGo Board created by some folks at the MIT Media Laboratory.
Our boot loader windows program and PIC program are therefore, very loosely based on these two structures.
www.sparkfun.com /tutorial/Bloader/bloader-1-main.htm   (866 words)

  
 CS354 Class Notes - Jan 23-25
Loader - An OS component that is used to run a program.
Any reference to the undefined symbol in the program is replaced with the address of the symbol found.
the loader replaces the memory image of the calling process by the one of the program loader.
www.cs.purdue.edu /homes/cs354/LectureNotes/Spring2002/week3-3   (473 words)

  
 Lazy Loader
Because Lazy Loader is designed to handle BASIC programs, it will not display files with the extenders.SYS,.OBJ,.EXE, or.DAT.
When choosing a file with a lower case letter, be sure that you are in lower case mode.
There's not much point to using a menu program like Lazy Loader without an AUTORUN.SYS file- which will AUTOmatically RUN another program when your Atari is turned on.
www.atarimagazines.com /v4n1/lazy_loader.html   (787 words)

  
 Program Loader   (Site not responding. Last check: 2007-10-12)
This program is another one of my almost useless programs.
Then when you double-click on the filename it loads that program.
Program Loader 1 (.exe 13 KB) - The program
www.jakeweisberg.com /VB/ProgramLoader   (52 words)

  
 Handheld Code Loader Guidelines - Anritsu
The Handheld Code Loader program is designed to work with Anritsu's handheld "Master" family products for downloading "free" firmware upgrades to either the Site Master, Spectrum Master, or Cell Master.
Please note that when the instrument is updated with the new Handheld Code Loader program the setups and traces saved in the unit will be erased.
The user is advised to read the Handheld Code Loader "Readme" file for the latest information on firmware upgrades, code loader upgrades and revovery information.
www.us.anritsu.com /sitemastercodeloader   (422 words)

  
 loader - Example Loader Program   (Site not responding. Last check: 2007-10-12)
This example loader program shows how to put large amounts of data into a database without the overhead and limitations of a client/server architecture and the SQL language.
The actual parsing of the file is intentionally left very simple, as the object of this example is to show how to load data into a database, not how to parse a data file.
This section describes how the program is structured so that a programmer can create a similar program for their own data.
www.thunderstone.com /site/texisman/node423.html   (433 words)

  
 The Boot Manager and Boot Stages
The loader is intended as a user-friendly method for configuration, using an easy-to-use built-in command set, backed up by a more powerful interpreter, with a more complex command set.
During initialization, the loader will probe for a console and for disks, and figure out what disk it is booting from.
Finally, by default, the loader issues a 10 second wait for key presses, and boots the kernel if it is not interrupted.
www.freebsd.org /doc/en_US.ISO8859-1/books/handbook/boot-blocks.html   (945 words)

  
 Booting - Wikipedia, the free encyclopedia
The computer's hardware alone cannot perform complex actions such as loading a program from disk, so an apparent paradox exists: to load the operating system into memory, one appears to need to have an operating system already loaded.
The solution is to use a special small program, called a bootstrap loader or boot loader.
Such reboots may occur due to a multitude of software and hardware problems, such as triple faults.
en.wikipedia.org /wiki/Boot_loader   (1662 words)

  
 Lab 1: Boot loader   (Site not responding. Last check: 2007-10-12)
Instead, the linker simply records the address and size of the bss section in the ELF program header along with the sizes of the other sections to be loaded, and leaves it to the loader (or in some cases the program itself) to zero the bss section.
A program's link address in practice becomes subtly encoded within the binary in a multitude of ways, with the result that if a binary is not loaded at the address that it is linked for, things will not work.
Trace through the first few instructions of the boot loader again and identify the first instruction that would "break" or otherwise do the wrong thing if you were to get the boot loader's link address wrong.
www.cs.utexas.edu /~dahlin/Classes/UGOS/labs/lab1/lab1.html   (6700 words)

  
 HDLoader Mod Chip - Discussion Forums - HD Loader in the memory card
With HD Loader in the memory card i won't need to use cd anymore (just to put a game in the HD), and my ps2 will live forever...
Try KeyLauncher v0.4 it assigns all the PS2 controller buttons for launching the file so you could have multiple ELF files and launch them from one program.
Also you will only need to use a P$X game to load up the Keylaucher after that you can eject the tray and take it out everything will load from the memory.
www.hdloader.net /forums/showthread.php?t=48   (293 words)

  
 swap magic 3.6 program loader
You might want to do this step at the same time as you load the usbadvance ELF file to the HD, but since first time, it's good to check progress.
This is the program you use to transfer PS2 games from your PC to your HD.
Now you should mount the image using Alcohol 120% or Daemon Tools or other such program to mount images.
forums.afterdawn.com /thread_view.cfm/261106   (860 words)

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