Elf

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Developer

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36

Momentum (beta)

0

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Price

$0.000000000920 0.0%

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$0.00 (#10689)

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Binance Smart Chain Ecosystem

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Price
52W High price	$0.000002023600
52W High date	26th Nov 2021 (3 years ago)
All Time High (ATH) Date	14th Feb 2025 (1 week ago)
All Time Low (ATL) Date	14th Feb 2025 (1 week ago)

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Description

ELF: Executable and Linkable Format

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ELF: Executable and Linkable Format

ELF stands for Executable and Linkable Format. It is a common standard file format primarily used for executable files, object files, shared libraries, and core dumps. ELF is known for its flexibility, extensibility, and cross-platform compatibility. This format supports various hardware architectures and operating systems, ensuring widespread adoption among Unix and Unix-like systems.

ELF files consist of several components, including a header, program header table, section header table, and data sections. The ELF header specifies the file format details such as the number of bits used for addressing while program headers describe memory segments necessary for runtime execution. Section headers, on the other hand, contain information for linking and relocation.

ELF Symbol Table

ELF files include a symbol table which holds the symbolic information (names of functions and variables) compiled with the program. These symbols are represented by an Elfxx_Sym structure containing details such as symbol name, binding attributes, and type attributes. The binding attributes determine the linkage visibility of the symbol when referenced by external objects, while the type attributes specify whether the symbol is a data object, code object, or a section. The symbol visibility defines how the symbol can be accessed by other objects in the final executable.

This symbolic information plays a crucial role in linking and debugging stages. Linkers such as ld use the symbol table to match and modify symbols. The symbol table is also essential for debuggers to identify functions and variables by name.

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