![A Deep Dive into the ELF File Format Elf Quest](https://cdn.magzter.com/1591653320/1679604471/articles/1Oubn3wrw1680677046917/A-DEEP-DIVE-INTO-THE-ELF-FILE-FORMAT-ELF-QUEST.jpg)
An object file is a black box that you can never really see inside. You can’t just open it and read it. We all have some understanding that it contains instructions for the computer, coded in a format that only a computer can understand, but we’re used to thinking of compiled program code as something of a mystery. If you take a closer look, however, the structure is not as opaque as you might imagine.
Linux, like most other Unix-like operating systems, stores program code in the Executable and Linkable Format (ELF). ELF superseded the less-flexible a.out format and has been the standard in Linux since 1995 and in FreeBSD [1] since 1998. An ELF object file contains the processor-specific instructions that the CPU actually executes. It also contains other information relating to
• how and where to load the object into memory
• dynamic linking
• any public functions exported (or imported) by the object
• debugging
Much of this functionality is only documented in the source code for kernels and toolchains themselves or in various obscure parts of the web. Understanding the ELF format is essential for anyone writing a compiler, assembler, or linker for the Linux platform.
Diese Geschichte stammt aus der #270/May 2023: Green Coding-Ausgabe von Linux Magazine.
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Diese Geschichte stammt aus der #270/May 2023: Green Coding-Ausgabe von Linux Magazine.
Starten Sie Ihre 7-tägige kostenlose Testversion von Magzter GOLD, um auf Tausende kuratierte Premium-Storys sowie über 8.000 Zeitschriften und Zeitungen zuzugreifen.
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URL filtering with Pi-hole Into the Funnel
Supporting browser plug-ins, network-based DNS blockers like Pi-hole help protect you against online tracking and unwanted content.
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Artificial intelligence on the Raspberry Pi Learning Experience
You don't need a powerful computer system to use Al. We show what it takes to benefit from Al on the Raspberry Pi and what tasks the small computer can handle.
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MakerSpace Manage your greenhouse with a Raspberry Pi Pico W Sheltered Growth
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Control Center
Tipi gives you complete control of more than 100 applications and services. A mouse click is all it takes to install the apps.
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In One Fell Swoop
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Go Faster!
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Custom Repair Toolkit
You can do more with System Rescue than just repair broken systems. By adding tools and scripts, you can create a custom rescue environment that meets your needs.
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At Your Disposal
Debvm lets you quickly create a temporary virtual machine with a small memory footprint, ideal for testing scripts or mixing repositories
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A Fresh Breeze
Vanilla OS, an immutable filesystem, seamlessly integrates applications from other distributions with an innovative container-based package manager.